annotate src/share/vm/classfile/classFileParser.cpp @ 1513:df736661d0c8

Merge
author jrose
date Tue, 11 May 2010 15:19:19 -0700
parents f03d0a26bf83 cd5dbf694d45
children c18cbe5936b8 086d73ccd6c0
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1 /*
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2 * Copyright 1997-2009 Sun Microsystems, Inc. All Rights Reserved.
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3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
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4 *
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5 * This code is free software; you can redistribute it and/or modify it
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6 * under the terms of the GNU General Public License version 2 only, as
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7 * published by the Free Software Foundation.
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8 *
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9 * This code is distributed in the hope that it will be useful, but WITHOUT
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10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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12 * version 2 for more details (a copy is included in the LICENSE file that
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13 * accompanied this code).
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14 *
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15 * You should have received a copy of the GNU General Public License version
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16 * 2 along with this work; if not, write to the Free Software Foundation,
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17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
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18 *
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19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
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20 * CA 95054 USA or visit www.sun.com if you need additional information or
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21 * have any questions.
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22 *
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23 */
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24
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25 #include "incls/_precompiled.incl"
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26 #include "incls/_classFileParser.cpp.incl"
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27
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28 // We generally try to create the oops directly when parsing, rather than allocating
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29 // temporary data structures and copying the bytes twice. A temporary area is only
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30 // needed when parsing utf8 entries in the constant pool and when parsing line number
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31 // tables.
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32
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33 // We add assert in debug mode when class format is not checked.
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34
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35 #define JAVA_CLASSFILE_MAGIC 0xCAFEBABE
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36 #define JAVA_MIN_SUPPORTED_VERSION 45
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37 #define JAVA_MAX_SUPPORTED_VERSION 51
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38 #define JAVA_MAX_SUPPORTED_MINOR_VERSION 0
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39
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40 // Used for two backward compatibility reasons:
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41 // - to check for new additions to the class file format in JDK1.5
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42 // - to check for bug fixes in the format checker in JDK1.5
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43 #define JAVA_1_5_VERSION 49
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44
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45 // Used for backward compatibility reasons:
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46 // - to check for javac bug fixes that happened after 1.5
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47 // - also used as the max version when running in jdk6
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48 #define JAVA_6_VERSION 50
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49
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50
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51 void ClassFileParser::parse_constant_pool_entries(constantPoolHandle cp, int length, TRAPS) {
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52 // Use a local copy of ClassFileStream. It helps the C++ compiler to optimize
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53 // this function (_current can be allocated in a register, with scalar
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54 // replacement of aggregates). The _current pointer is copied back to
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55 // stream() when this function returns. DON'T call another method within
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56 // this method that uses stream().
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57 ClassFileStream* cfs0 = stream();
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58 ClassFileStream cfs1 = *cfs0;
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59 ClassFileStream* cfs = &cfs1;
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60 #ifdef ASSERT
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61 u1* old_current = cfs0->current();
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62 #endif
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63
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64 // Used for batching symbol allocations.
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65 const char* names[SymbolTable::symbol_alloc_batch_size];
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66 int lengths[SymbolTable::symbol_alloc_batch_size];
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67 int indices[SymbolTable::symbol_alloc_batch_size];
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68 unsigned int hashValues[SymbolTable::symbol_alloc_batch_size];
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69 int names_count = 0;
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70
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71 // parsing Index 0 is unused
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72 for (int index = 1; index < length; index++) {
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73 // Each of the following case guarantees one more byte in the stream
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74 // for the following tag or the access_flags following constant pool,
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75 // so we don't need bounds-check for reading tag.
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76 u1 tag = cfs->get_u1_fast();
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77 switch (tag) {
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78 case JVM_CONSTANT_Class :
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79 {
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80 cfs->guarantee_more(3, CHECK); // name_index, tag/access_flags
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81 u2 name_index = cfs->get_u2_fast();
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82 cp->klass_index_at_put(index, name_index);
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83 }
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84 break;
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85 case JVM_CONSTANT_Fieldref :
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86 {
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87 cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags
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88 u2 class_index = cfs->get_u2_fast();
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89 u2 name_and_type_index = cfs->get_u2_fast();
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90 cp->field_at_put(index, class_index, name_and_type_index);
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91 }
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92 break;
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93 case JVM_CONSTANT_Methodref :
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94 {
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95 cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags
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96 u2 class_index = cfs->get_u2_fast();
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97 u2 name_and_type_index = cfs->get_u2_fast();
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98 cp->method_at_put(index, class_index, name_and_type_index);
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99 }
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100 break;
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101 case JVM_CONSTANT_InterfaceMethodref :
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102 {
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103 cfs->guarantee_more(5, CHECK); // class_index, name_and_type_index, tag/access_flags
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104 u2 class_index = cfs->get_u2_fast();
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105 u2 name_and_type_index = cfs->get_u2_fast();
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106 cp->interface_method_at_put(index, class_index, name_and_type_index);
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107 }
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108 break;
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109 case JVM_CONSTANT_String :
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110 {
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111 cfs->guarantee_more(3, CHECK); // string_index, tag/access_flags
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112 u2 string_index = cfs->get_u2_fast();
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113 cp->string_index_at_put(index, string_index);
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114 }
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115 break;
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116 case JVM_CONSTANT_Integer :
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117 {
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118 cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags
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119 u4 bytes = cfs->get_u4_fast();
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120 cp->int_at_put(index, (jint) bytes);
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121 }
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122 break;
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123 case JVM_CONSTANT_Float :
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124 {
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125 cfs->guarantee_more(5, CHECK); // bytes, tag/access_flags
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126 u4 bytes = cfs->get_u4_fast();
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127 cp->float_at_put(index, *(jfloat*)&bytes);
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128 }
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129 break;
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130 case JVM_CONSTANT_Long :
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131 // A mangled type might cause you to overrun allocated memory
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132 guarantee_property(index+1 < length,
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133 "Invalid constant pool entry %u in class file %s",
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134 index, CHECK);
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135 {
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136 cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags
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137 u8 bytes = cfs->get_u8_fast();
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138 cp->long_at_put(index, bytes);
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139 }
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140 index++; // Skip entry following eigth-byte constant, see JVM book p. 98
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141 break;
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142 case JVM_CONSTANT_Double :
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143 // A mangled type might cause you to overrun allocated memory
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144 guarantee_property(index+1 < length,
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145 "Invalid constant pool entry %u in class file %s",
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146 index, CHECK);
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147 {
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148 cfs->guarantee_more(9, CHECK); // bytes, tag/access_flags
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149 u8 bytes = cfs->get_u8_fast();
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150 cp->double_at_put(index, *(jdouble*)&bytes);
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151 }
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152 index++; // Skip entry following eigth-byte constant, see JVM book p. 98
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153 break;
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154 case JVM_CONSTANT_NameAndType :
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155 {
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156 cfs->guarantee_more(5, CHECK); // name_index, signature_index, tag/access_flags
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157 u2 name_index = cfs->get_u2_fast();
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158 u2 signature_index = cfs->get_u2_fast();
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159 cp->name_and_type_at_put(index, name_index, signature_index);
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160 }
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161 break;
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162 case JVM_CONSTANT_Utf8 :
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163 {
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164 cfs->guarantee_more(2, CHECK); // utf8_length
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165 u2 utf8_length = cfs->get_u2_fast();
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166 u1* utf8_buffer = cfs->get_u1_buffer();
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167 assert(utf8_buffer != NULL, "null utf8 buffer");
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168 // Got utf8 string, guarantee utf8_length+1 bytes, set stream position forward.
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169 cfs->guarantee_more(utf8_length+1, CHECK); // utf8 string, tag/access_flags
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170 cfs->skip_u1_fast(utf8_length);
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171
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172 // Before storing the symbol, make sure it's legal
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173 if (_need_verify) {
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174 verify_legal_utf8((unsigned char*)utf8_buffer, utf8_length, CHECK);
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175 }
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176
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177 if (AnonymousClasses && has_cp_patch_at(index)) {
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178 Handle patch = clear_cp_patch_at(index);
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179 guarantee_property(java_lang_String::is_instance(patch()),
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180 "Illegal utf8 patch at %d in class file %s",
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181 index, CHECK);
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182 char* str = java_lang_String::as_utf8_string(patch());
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183 // (could use java_lang_String::as_symbol instead, but might as well batch them)
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184 utf8_buffer = (u1*) str;
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185 utf8_length = (int) strlen(str);
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186 }
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187
0
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188 unsigned int hash;
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189 symbolOop result = SymbolTable::lookup_only((char*)utf8_buffer, utf8_length, hash);
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190 if (result == NULL) {
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191 names[names_count] = (char*)utf8_buffer;
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192 lengths[names_count] = utf8_length;
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193 indices[names_count] = index;
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194 hashValues[names_count++] = hash;
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195 if (names_count == SymbolTable::symbol_alloc_batch_size) {
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196 oopFactory::new_symbols(cp, names_count, names, lengths, indices, hashValues, CHECK);
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197 names_count = 0;
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198 }
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199 } else {
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200 cp->symbol_at_put(index, result);
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201 }
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202 }
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203 break;
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204 default:
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205 classfile_parse_error(
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206 "Unknown constant tag %u in class file %s", tag, CHECK);
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207 break;
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208 }
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209 }
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parents:
diff changeset
210
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parents:
diff changeset
211 // Allocate the remaining symbols
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parents:
diff changeset
212 if (names_count > 0) {
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parents:
diff changeset
213 oopFactory::new_symbols(cp, names_count, names, lengths, indices, hashValues, CHECK);
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parents:
diff changeset
214 }
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parents:
diff changeset
215
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parents:
diff changeset
216 // Copy _current pointer of local copy back to stream().
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parents:
diff changeset
217 #ifdef ASSERT
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parents:
diff changeset
218 assert(cfs0->current() == old_current, "non-exclusive use of stream()");
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parents:
diff changeset
219 #endif
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parents:
diff changeset
220 cfs0->set_current(cfs1.current());
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parents:
diff changeset
221 }
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parents:
diff changeset
222
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parents:
diff changeset
223 bool inline valid_cp_range(int index, int length) { return (index > 0 && index < length); }
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parents:
diff changeset
224
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parents:
diff changeset
225 constantPoolHandle ClassFileParser::parse_constant_pool(TRAPS) {
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parents:
diff changeset
226 ClassFileStream* cfs = stream();
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parents:
diff changeset
227 constantPoolHandle nullHandle;
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parents:
diff changeset
228
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parents:
diff changeset
229 cfs->guarantee_more(3, CHECK_(nullHandle)); // length, first cp tag
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parents:
diff changeset
230 u2 length = cfs->get_u2_fast();
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parents:
diff changeset
231 guarantee_property(
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parents:
diff changeset
232 length >= 1, "Illegal constant pool size %u in class file %s",
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parents:
diff changeset
233 length, CHECK_(nullHandle));
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parents:
diff changeset
234 constantPoolOop constant_pool =
518
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 474
diff changeset
235 oopFactory::new_constantPool(length,
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 474
diff changeset
236 methodOopDesc::IsSafeConc,
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 474
diff changeset
237 CHECK_(nullHandle));
0
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parents:
diff changeset
238 constantPoolHandle cp (THREAD, constant_pool);
a61af66fc99e Initial load
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parents:
diff changeset
239
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parents:
diff changeset
240 cp->set_partially_loaded(); // Enables heap verify to work on partial constantPoolOops
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parents:
diff changeset
241
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parents:
diff changeset
242 // parsing constant pool entries
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parents:
diff changeset
243 parse_constant_pool_entries(cp, length, CHECK_(nullHandle));
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parents:
diff changeset
244
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parents:
diff changeset
245 int index = 1; // declared outside of loops for portability
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parents:
diff changeset
246
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parents:
diff changeset
247 // first verification pass - validate cross references and fixup class and string constants
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parents:
diff changeset
248 for (index = 1; index < length; index++) { // Index 0 is unused
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parents:
diff changeset
249 switch (cp->tag_at(index).value()) {
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parents:
diff changeset
250 case JVM_CONSTANT_Class :
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parents:
diff changeset
251 ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present
a61af66fc99e Initial load
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parents:
diff changeset
252 break;
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parents:
diff changeset
253 case JVM_CONSTANT_Fieldref :
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parents:
diff changeset
254 // fall through
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parents:
diff changeset
255 case JVM_CONSTANT_Methodref :
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parents:
diff changeset
256 // fall through
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parents:
diff changeset
257 case JVM_CONSTANT_InterfaceMethodref : {
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parents:
diff changeset
258 if (!_need_verify) break;
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parents:
diff changeset
259 int klass_ref_index = cp->klass_ref_index_at(index);
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parents:
diff changeset
260 int name_and_type_ref_index = cp->name_and_type_ref_index_at(index);
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parents:
diff changeset
261 check_property(valid_cp_range(klass_ref_index, length) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
262 is_klass_reference(cp, klass_ref_index),
0
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parents:
diff changeset
263 "Invalid constant pool index %u in class file %s",
a61af66fc99e Initial load
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parents:
diff changeset
264 klass_ref_index,
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parents:
diff changeset
265 CHECK_(nullHandle));
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parents:
diff changeset
266 check_property(valid_cp_range(name_and_type_ref_index, length) &&
a61af66fc99e Initial load
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parents:
diff changeset
267 cp->tag_at(name_and_type_ref_index).is_name_and_type(),
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parents:
diff changeset
268 "Invalid constant pool index %u in class file %s",
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parents:
diff changeset
269 name_and_type_ref_index,
a61af66fc99e Initial load
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parents:
diff changeset
270 CHECK_(nullHandle));
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parents:
diff changeset
271 break;
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parents:
diff changeset
272 }
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parents:
diff changeset
273 case JVM_CONSTANT_String :
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parents:
diff changeset
274 ShouldNotReachHere(); // Only JVM_CONSTANT_StringIndex should be present
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parents:
diff changeset
275 break;
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parents:
diff changeset
276 case JVM_CONSTANT_Integer :
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parents:
diff changeset
277 break;
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parents:
diff changeset
278 case JVM_CONSTANT_Float :
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parents:
diff changeset
279 break;
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parents:
diff changeset
280 case JVM_CONSTANT_Long :
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parents:
diff changeset
281 case JVM_CONSTANT_Double :
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parents:
diff changeset
282 index++;
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parents:
diff changeset
283 check_property(
a61af66fc99e Initial load
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parents:
diff changeset
284 (index < length && cp->tag_at(index).is_invalid()),
a61af66fc99e Initial load
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parents:
diff changeset
285 "Improper constant pool long/double index %u in class file %s",
a61af66fc99e Initial load
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parents:
diff changeset
286 index, CHECK_(nullHandle));
a61af66fc99e Initial load
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parents:
diff changeset
287 break;
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parents:
diff changeset
288 case JVM_CONSTANT_NameAndType : {
a61af66fc99e Initial load
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parents:
diff changeset
289 if (!_need_verify) break;
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parents:
diff changeset
290 int name_ref_index = cp->name_ref_index_at(index);
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parents:
diff changeset
291 int signature_ref_index = cp->signature_ref_index_at(index);
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parents:
diff changeset
292 check_property(
a61af66fc99e Initial load
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parents:
diff changeset
293 valid_cp_range(name_ref_index, length) &&
a61af66fc99e Initial load
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parents:
diff changeset
294 cp->tag_at(name_ref_index).is_utf8(),
a61af66fc99e Initial load
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parents:
diff changeset
295 "Invalid constant pool index %u in class file %s",
a61af66fc99e Initial load
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parents:
diff changeset
296 name_ref_index, CHECK_(nullHandle));
a61af66fc99e Initial load
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parents:
diff changeset
297 check_property(
a61af66fc99e Initial load
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parents:
diff changeset
298 valid_cp_range(signature_ref_index, length) &&
a61af66fc99e Initial load
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parents:
diff changeset
299 cp->tag_at(signature_ref_index).is_utf8(),
a61af66fc99e Initial load
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parents:
diff changeset
300 "Invalid constant pool index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
301 signature_ref_index, CHECK_(nullHandle));
a61af66fc99e Initial load
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parents:
diff changeset
302 break;
a61af66fc99e Initial load
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parents:
diff changeset
303 }
a61af66fc99e Initial load
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parents:
diff changeset
304 case JVM_CONSTANT_Utf8 :
a61af66fc99e Initial load
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parents:
diff changeset
305 break;
a61af66fc99e Initial load
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parents:
diff changeset
306 case JVM_CONSTANT_UnresolvedClass : // fall-through
a61af66fc99e Initial load
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parents:
diff changeset
307 case JVM_CONSTANT_UnresolvedClassInError:
a61af66fc99e Initial load
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parents:
diff changeset
308 ShouldNotReachHere(); // Only JVM_CONSTANT_ClassIndex should be present
a61af66fc99e Initial load
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parents:
diff changeset
309 break;
a61af66fc99e Initial load
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parents:
diff changeset
310 case JVM_CONSTANT_ClassIndex :
a61af66fc99e Initial load
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parents:
diff changeset
311 {
a61af66fc99e Initial load
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parents:
diff changeset
312 int class_index = cp->klass_index_at(index);
a61af66fc99e Initial load
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parents:
diff changeset
313 check_property(
a61af66fc99e Initial load
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parents:
diff changeset
314 valid_cp_range(class_index, length) &&
a61af66fc99e Initial load
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parents:
diff changeset
315 cp->tag_at(class_index).is_utf8(),
a61af66fc99e Initial load
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parents:
diff changeset
316 "Invalid constant pool index %u in class file %s",
a61af66fc99e Initial load
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parents:
diff changeset
317 class_index, CHECK_(nullHandle));
a61af66fc99e Initial load
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parents:
diff changeset
318 cp->unresolved_klass_at_put(index, cp->symbol_at(class_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
319 }
a61af66fc99e Initial load
duke
parents:
diff changeset
320 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
321 case JVM_CONSTANT_UnresolvedString :
a61af66fc99e Initial load
duke
parents:
diff changeset
322 ShouldNotReachHere(); // Only JVM_CONSTANT_StringIndex should be present
a61af66fc99e Initial load
duke
parents:
diff changeset
323 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
324 case JVM_CONSTANT_StringIndex :
a61af66fc99e Initial load
duke
parents:
diff changeset
325 {
a61af66fc99e Initial load
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parents:
diff changeset
326 int string_index = cp->string_index_at(index);
a61af66fc99e Initial load
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parents:
diff changeset
327 check_property(
a61af66fc99e Initial load
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parents:
diff changeset
328 valid_cp_range(string_index, length) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
329 cp->tag_at(string_index).is_utf8(),
a61af66fc99e Initial load
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parents:
diff changeset
330 "Invalid constant pool index %u in class file %s",
a61af66fc99e Initial load
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parents:
diff changeset
331 string_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
332 symbolOop sym = cp->symbol_at(string_index);
a61af66fc99e Initial load
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parents:
diff changeset
333 cp->unresolved_string_at_put(index, sym);
a61af66fc99e Initial load
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parents:
diff changeset
334 }
a61af66fc99e Initial load
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parents:
diff changeset
335 break;
a61af66fc99e Initial load
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parents:
diff changeset
336 default:
1490
f03d0a26bf83 6888954: argument formatting for assert() and friends
jcoomes
parents: 1366
diff changeset
337 fatal(err_msg("bad constant pool tag value %u",
f03d0a26bf83 6888954: argument formatting for assert() and friends
jcoomes
parents: 1366
diff changeset
338 cp->tag_at(index).value()));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
339 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
340 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
341 } // end of switch
a61af66fc99e Initial load
duke
parents:
diff changeset
342 } // end of for
a61af66fc99e Initial load
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parents:
diff changeset
343
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
344 if (_cp_patches != NULL) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
345 // need to treat this_class specially...
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
346 assert(AnonymousClasses, "");
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
347 int this_class_index;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
348 {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
349 cfs->guarantee_more(8, CHECK_(nullHandle)); // flags, this_class, super_class, infs_len
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
350 u1* mark = cfs->current();
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
351 u2 flags = cfs->get_u2_fast();
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
352 this_class_index = cfs->get_u2_fast();
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
353 cfs->set_current(mark); // revert to mark
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
354 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
355
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
356 for (index = 1; index < length; index++) { // Index 0 is unused
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
357 if (has_cp_patch_at(index)) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
358 guarantee_property(index != this_class_index,
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
359 "Illegal constant pool patch to self at %d in class file %s",
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
360 index, CHECK_(nullHandle));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
361 patch_constant_pool(cp, index, cp_patch_at(index), CHECK_(nullHandle));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
362 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
363 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
364 // Ensure that all the patches have been used.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
365 for (index = 0; index < _cp_patches->length(); index++) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
366 guarantee_property(!has_cp_patch_at(index),
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
367 "Unused constant pool patch at %d in class file %s",
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
368 index, CHECK_(nullHandle));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
369 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
370 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
371
0
a61af66fc99e Initial load
duke
parents:
diff changeset
372 if (!_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
373 return cp;
a61af66fc99e Initial load
duke
parents:
diff changeset
374 }
a61af66fc99e Initial load
duke
parents:
diff changeset
375
a61af66fc99e Initial load
duke
parents:
diff changeset
376 // second verification pass - checks the strings are of the right format.
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
377 // but not yet to the other entries
0
a61af66fc99e Initial load
duke
parents:
diff changeset
378 for (index = 1; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
379 jbyte tag = cp->tag_at(index).value();
a61af66fc99e Initial load
duke
parents:
diff changeset
380 switch (tag) {
a61af66fc99e Initial load
duke
parents:
diff changeset
381 case JVM_CONSTANT_UnresolvedClass: {
a61af66fc99e Initial load
duke
parents:
diff changeset
382 symbolHandle class_name(THREAD, cp->unresolved_klass_at(index));
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
383 // check the name, even if _cp_patches will overwrite it
0
a61af66fc99e Initial load
duke
parents:
diff changeset
384 verify_legal_class_name(class_name, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
385 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
386 }
a61af66fc99e Initial load
duke
parents:
diff changeset
387 case JVM_CONSTANT_Fieldref:
a61af66fc99e Initial load
duke
parents:
diff changeset
388 case JVM_CONSTANT_Methodref:
a61af66fc99e Initial load
duke
parents:
diff changeset
389 case JVM_CONSTANT_InterfaceMethodref: {
a61af66fc99e Initial load
duke
parents:
diff changeset
390 int name_and_type_ref_index = cp->name_and_type_ref_index_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
391 // already verified to be utf8
a61af66fc99e Initial load
duke
parents:
diff changeset
392 int name_ref_index = cp->name_ref_index_at(name_and_type_ref_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
393 // already verified to be utf8
a61af66fc99e Initial load
duke
parents:
diff changeset
394 int signature_ref_index = cp->signature_ref_index_at(name_and_type_ref_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
395 symbolHandle name(THREAD, cp->symbol_at(name_ref_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
396 symbolHandle signature(THREAD, cp->symbol_at(signature_ref_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
397 if (tag == JVM_CONSTANT_Fieldref) {
a61af66fc99e Initial load
duke
parents:
diff changeset
398 verify_legal_field_name(name, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
399 verify_legal_field_signature(name, signature, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
400 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
401 verify_legal_method_name(name, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
402 verify_legal_method_signature(name, signature, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
403 if (tag == JVM_CONSTANT_Methodref) {
a61af66fc99e Initial load
duke
parents:
diff changeset
404 // 4509014: If a class method name begins with '<', it must be "<init>".
a61af66fc99e Initial load
duke
parents:
diff changeset
405 assert(!name.is_null(), "method name in constant pool is null");
a61af66fc99e Initial load
duke
parents:
diff changeset
406 unsigned int name_len = name->utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
407 assert(name_len > 0, "bad method name"); // already verified as legal name
a61af66fc99e Initial load
duke
parents:
diff changeset
408 if (name->byte_at(0) == '<') {
a61af66fc99e Initial load
duke
parents:
diff changeset
409 if (name() != vmSymbols::object_initializer_name()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
410 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
411 "Bad method name at constant pool index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
412 name_ref_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
413 }
a61af66fc99e Initial load
duke
parents:
diff changeset
414 }
a61af66fc99e Initial load
duke
parents:
diff changeset
415 }
a61af66fc99e Initial load
duke
parents:
diff changeset
416 }
a61af66fc99e Initial load
duke
parents:
diff changeset
417 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
418 }
a61af66fc99e Initial load
duke
parents:
diff changeset
419 } // end of switch
a61af66fc99e Initial load
duke
parents:
diff changeset
420 } // end of for
a61af66fc99e Initial load
duke
parents:
diff changeset
421
a61af66fc99e Initial load
duke
parents:
diff changeset
422 return cp;
a61af66fc99e Initial load
duke
parents:
diff changeset
423 }
a61af66fc99e Initial load
duke
parents:
diff changeset
424
a61af66fc99e Initial load
duke
parents:
diff changeset
425
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
426 void ClassFileParser::patch_constant_pool(constantPoolHandle cp, int index, Handle patch, TRAPS) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
427 assert(AnonymousClasses, "");
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
428 BasicType patch_type = T_VOID;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
429 switch (cp->tag_at(index).value()) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
430
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
431 case JVM_CONSTANT_UnresolvedClass :
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
432 // Patching a class means pre-resolving it.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
433 // The name in the constant pool is ignored.
1142
4ce7240d622c 6914300: ciEnv should export all well known classes
never
parents: 1138
diff changeset
434 if (patch->klass() == SystemDictionary::Class_klass()) { // %%% java_lang_Class::is_instance
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
435 guarantee_property(!java_lang_Class::is_primitive(patch()),
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
436 "Illegal class patch at %d in class file %s",
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
437 index, CHECK);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
438 cp->klass_at_put(index, java_lang_Class::as_klassOop(patch()));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
439 } else {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
440 guarantee_property(java_lang_String::is_instance(patch()),
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
441 "Illegal class patch at %d in class file %s",
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
442 index, CHECK);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
443 symbolHandle name = java_lang_String::as_symbol(patch(), CHECK);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
444 cp->unresolved_klass_at_put(index, name());
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
445 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
446 break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
447
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
448 case JVM_CONSTANT_UnresolvedString :
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
449 // Patching a string means pre-resolving it.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
450 // The spelling in the constant pool is ignored.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
451 // The constant reference may be any object whatever.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
452 // If it is not a real interned string, the constant is referred
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
453 // to as a "pseudo-string", and must be presented to the CP
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
454 // explicitly, because it may require scavenging.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
455 cp->pseudo_string_at_put(index, patch());
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
456 break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
457
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
458 case JVM_CONSTANT_Integer : patch_type = T_INT; goto patch_prim;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
459 case JVM_CONSTANT_Float : patch_type = T_FLOAT; goto patch_prim;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
460 case JVM_CONSTANT_Long : patch_type = T_LONG; goto patch_prim;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
461 case JVM_CONSTANT_Double : patch_type = T_DOUBLE; goto patch_prim;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
462 patch_prim:
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
463 {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
464 jvalue value;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
465 BasicType value_type = java_lang_boxing_object::get_value(patch(), &value);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
466 guarantee_property(value_type == patch_type,
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
467 "Illegal primitive patch at %d in class file %s",
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
468 index, CHECK);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
469 switch (value_type) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
470 case T_INT: cp->int_at_put(index, value.i); break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
471 case T_FLOAT: cp->float_at_put(index, value.f); break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
472 case T_LONG: cp->long_at_put(index, value.j); break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
473 case T_DOUBLE: cp->double_at_put(index, value.d); break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
474 default: assert(false, "");
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
475 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
476 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
477 break;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
478
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
479 default:
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
480 // %%% TODO: put method handles into CONSTANT_InterfaceMethodref, etc.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
481 guarantee_property(!has_cp_patch_at(index),
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
482 "Illegal unexpected patch at %d in class file %s",
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
483 index, CHECK);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
484 return;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
485 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
486
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
487 // On fall-through, mark the patch as used.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
488 clear_cp_patch_at(index);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
489 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
490
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
491
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
492
0
a61af66fc99e Initial load
duke
parents:
diff changeset
493 class NameSigHash: public ResourceObj {
a61af66fc99e Initial load
duke
parents:
diff changeset
494 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
495 symbolOop _name; // name
a61af66fc99e Initial load
duke
parents:
diff changeset
496 symbolOop _sig; // signature
a61af66fc99e Initial load
duke
parents:
diff changeset
497 NameSigHash* _next; // Next entry in hash table
a61af66fc99e Initial load
duke
parents:
diff changeset
498 };
a61af66fc99e Initial load
duke
parents:
diff changeset
499
a61af66fc99e Initial load
duke
parents:
diff changeset
500
a61af66fc99e Initial load
duke
parents:
diff changeset
501 #define HASH_ROW_SIZE 256
a61af66fc99e Initial load
duke
parents:
diff changeset
502
a61af66fc99e Initial load
duke
parents:
diff changeset
503 unsigned int hash(symbolOop name, symbolOop sig) {
a61af66fc99e Initial load
duke
parents:
diff changeset
504 unsigned int raw_hash = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
505 raw_hash += ((unsigned int)(uintptr_t)name) >> (LogHeapWordSize + 2);
a61af66fc99e Initial load
duke
parents:
diff changeset
506 raw_hash += ((unsigned int)(uintptr_t)sig) >> LogHeapWordSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
507
a61af66fc99e Initial load
duke
parents:
diff changeset
508 return (raw_hash + (unsigned int)(uintptr_t)name) % HASH_ROW_SIZE;
a61af66fc99e Initial load
duke
parents:
diff changeset
509 }
a61af66fc99e Initial load
duke
parents:
diff changeset
510
a61af66fc99e Initial load
duke
parents:
diff changeset
511
a61af66fc99e Initial load
duke
parents:
diff changeset
512 void initialize_hashtable(NameSigHash** table) {
a61af66fc99e Initial load
duke
parents:
diff changeset
513 memset((void*)table, 0, sizeof(NameSigHash*) * HASH_ROW_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
514 }
a61af66fc99e Initial load
duke
parents:
diff changeset
515
a61af66fc99e Initial load
duke
parents:
diff changeset
516 // Return false if the name/sig combination is found in table.
a61af66fc99e Initial load
duke
parents:
diff changeset
517 // Return true if no duplicate is found. And name/sig is added as a new entry in table.
a61af66fc99e Initial load
duke
parents:
diff changeset
518 // The old format checker uses heap sort to find duplicates.
a61af66fc99e Initial load
duke
parents:
diff changeset
519 // NOTE: caller should guarantee that GC doesn't happen during the life cycle
a61af66fc99e Initial load
duke
parents:
diff changeset
520 // of table since we don't expect symbolOop's to move.
a61af66fc99e Initial load
duke
parents:
diff changeset
521 bool put_after_lookup(symbolOop name, symbolOop sig, NameSigHash** table) {
a61af66fc99e Initial load
duke
parents:
diff changeset
522 assert(name != NULL, "name in constant pool is NULL");
a61af66fc99e Initial load
duke
parents:
diff changeset
523
a61af66fc99e Initial load
duke
parents:
diff changeset
524 // First lookup for duplicates
a61af66fc99e Initial load
duke
parents:
diff changeset
525 int index = hash(name, sig);
a61af66fc99e Initial load
duke
parents:
diff changeset
526 NameSigHash* entry = table[index];
a61af66fc99e Initial load
duke
parents:
diff changeset
527 while (entry != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
528 if (entry->_name == name && entry->_sig == sig) {
a61af66fc99e Initial load
duke
parents:
diff changeset
529 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
530 }
a61af66fc99e Initial load
duke
parents:
diff changeset
531 entry = entry->_next;
a61af66fc99e Initial load
duke
parents:
diff changeset
532 }
a61af66fc99e Initial load
duke
parents:
diff changeset
533
a61af66fc99e Initial load
duke
parents:
diff changeset
534 // No duplicate is found, allocate a new entry and fill it.
a61af66fc99e Initial load
duke
parents:
diff changeset
535 entry = new NameSigHash();
a61af66fc99e Initial load
duke
parents:
diff changeset
536 entry->_name = name;
a61af66fc99e Initial load
duke
parents:
diff changeset
537 entry->_sig = sig;
a61af66fc99e Initial load
duke
parents:
diff changeset
538
a61af66fc99e Initial load
duke
parents:
diff changeset
539 // Insert into hash table
a61af66fc99e Initial load
duke
parents:
diff changeset
540 entry->_next = table[index];
a61af66fc99e Initial load
duke
parents:
diff changeset
541 table[index] = entry;
a61af66fc99e Initial load
duke
parents:
diff changeset
542
a61af66fc99e Initial load
duke
parents:
diff changeset
543 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
544 }
a61af66fc99e Initial load
duke
parents:
diff changeset
545
a61af66fc99e Initial load
duke
parents:
diff changeset
546
a61af66fc99e Initial load
duke
parents:
diff changeset
547 objArrayHandle ClassFileParser::parse_interfaces(constantPoolHandle cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
548 int length,
a61af66fc99e Initial load
duke
parents:
diff changeset
549 Handle class_loader,
a61af66fc99e Initial load
duke
parents:
diff changeset
550 Handle protection_domain,
a61af66fc99e Initial load
duke
parents:
diff changeset
551 symbolHandle class_name,
a61af66fc99e Initial load
duke
parents:
diff changeset
552 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
553 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
554 assert(length > 0, "only called for length>0");
a61af66fc99e Initial load
duke
parents:
diff changeset
555 objArrayHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
556 objArrayOop interface_oop = oopFactory::new_system_objArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
557 objArrayHandle interfaces (THREAD, interface_oop);
a61af66fc99e Initial load
duke
parents:
diff changeset
558
a61af66fc99e Initial load
duke
parents:
diff changeset
559 int index;
a61af66fc99e Initial load
duke
parents:
diff changeset
560 for (index = 0; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
561 u2 interface_index = cfs->get_u2(CHECK_(nullHandle));
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
562 KlassHandle interf;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
563 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
564 valid_cp_range(interface_index, cp->length()) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
565 is_klass_reference(cp, interface_index),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
566 "Interface name has bad constant pool index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
567 interface_index, CHECK_(nullHandle));
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
568 if (cp->tag_at(interface_index).is_klass()) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
569 interf = KlassHandle(THREAD, cp->resolved_klass_at(interface_index));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
570 } else {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
571 symbolHandle unresolved_klass (THREAD, cp->klass_name_at(interface_index));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
572
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
573 // Don't need to check legal name because it's checked when parsing constant pool.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
574 // But need to make sure it's not an array type.
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
575 guarantee_property(unresolved_klass->byte_at(0) != JVM_SIGNATURE_ARRAY,
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
576 "Bad interface name in class file %s", CHECK_(nullHandle));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
577
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
578 // Call resolve_super so classcircularity is checked
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
579 klassOop k = SystemDictionary::resolve_super_or_fail(class_name,
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
580 unresolved_klass, class_loader, protection_domain,
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
581 false, CHECK_(nullHandle));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
582 interf = KlassHandle(THREAD, k);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
583
474
7a018855d2f0 6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents: 431
diff changeset
584 if (LinkWellKnownClasses) // my super type is well known to me
7a018855d2f0 6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents: 431
diff changeset
585 cp->klass_at_put(interface_index, interf()); // eagerly resolve
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
586 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
587
a61af66fc99e Initial load
duke
parents:
diff changeset
588 if (!Klass::cast(interf())->is_interface()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
589 THROW_MSG_(vmSymbols::java_lang_IncompatibleClassChangeError(), "Implementing class", nullHandle);
a61af66fc99e Initial load
duke
parents:
diff changeset
590 }
a61af66fc99e Initial load
duke
parents:
diff changeset
591 interfaces->obj_at_put(index, interf());
a61af66fc99e Initial load
duke
parents:
diff changeset
592 }
a61af66fc99e Initial load
duke
parents:
diff changeset
593
a61af66fc99e Initial load
duke
parents:
diff changeset
594 if (!_need_verify || length <= 1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
595 return interfaces;
a61af66fc99e Initial load
duke
parents:
diff changeset
596 }
a61af66fc99e Initial load
duke
parents:
diff changeset
597
a61af66fc99e Initial load
duke
parents:
diff changeset
598 // Check if there's any duplicates in interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
599 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
600 NameSigHash** interface_names = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
601 THREAD, NameSigHash*, HASH_ROW_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
602 initialize_hashtable(interface_names);
a61af66fc99e Initial load
duke
parents:
diff changeset
603 bool dup = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
604 {
a61af66fc99e Initial load
duke
parents:
diff changeset
605 debug_only(No_Safepoint_Verifier nsv;)
a61af66fc99e Initial load
duke
parents:
diff changeset
606 for (index = 0; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
607 klassOop k = (klassOop)interfaces->obj_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
608 symbolOop name = instanceKlass::cast(k)->name();
a61af66fc99e Initial load
duke
parents:
diff changeset
609 // If no duplicates, add (name, NULL) in hashtable interface_names.
a61af66fc99e Initial load
duke
parents:
diff changeset
610 if (!put_after_lookup(name, NULL, interface_names)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
611 dup = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
612 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
613 }
a61af66fc99e Initial load
duke
parents:
diff changeset
614 }
a61af66fc99e Initial load
duke
parents:
diff changeset
615 }
a61af66fc99e Initial load
duke
parents:
diff changeset
616 if (dup) {
a61af66fc99e Initial load
duke
parents:
diff changeset
617 classfile_parse_error("Duplicate interface name in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
618 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
619 }
a61af66fc99e Initial load
duke
parents:
diff changeset
620
a61af66fc99e Initial load
duke
parents:
diff changeset
621 return interfaces;
a61af66fc99e Initial load
duke
parents:
diff changeset
622 }
a61af66fc99e Initial load
duke
parents:
diff changeset
623
a61af66fc99e Initial load
duke
parents:
diff changeset
624
a61af66fc99e Initial load
duke
parents:
diff changeset
625 void ClassFileParser::verify_constantvalue(int constantvalue_index, int signature_index, constantPoolHandle cp, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
626 // Make sure the constant pool entry is of a type appropriate to this field
a61af66fc99e Initial load
duke
parents:
diff changeset
627 guarantee_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
628 (constantvalue_index > 0 &&
a61af66fc99e Initial load
duke
parents:
diff changeset
629 constantvalue_index < cp->length()),
a61af66fc99e Initial load
duke
parents:
diff changeset
630 "Bad initial value index %u in ConstantValue attribute in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
631 constantvalue_index, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
632 constantTag value_type = cp->tag_at(constantvalue_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
633 switch ( cp->basic_type_for_signature_at(signature_index) ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
634 case T_LONG:
a61af66fc99e Initial load
duke
parents:
diff changeset
635 guarantee_property(value_type.is_long(), "Inconsistent constant value type in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
636 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
637 case T_FLOAT:
a61af66fc99e Initial load
duke
parents:
diff changeset
638 guarantee_property(value_type.is_float(), "Inconsistent constant value type in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
639 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
640 case T_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
641 guarantee_property(value_type.is_double(), "Inconsistent constant value type in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
642 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
643 case T_BYTE: case T_CHAR: case T_SHORT: case T_BOOLEAN: case T_INT:
a61af66fc99e Initial load
duke
parents:
diff changeset
644 guarantee_property(value_type.is_int(), "Inconsistent constant value type in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
645 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
646 case T_OBJECT:
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 1108
diff changeset
647 guarantee_property((cp->symbol_at(signature_index)->equals("Ljava/lang/String;")
0
a61af66fc99e Initial load
duke
parents:
diff changeset
648 && (value_type.is_string() || value_type.is_unresolved_string())),
a61af66fc99e Initial load
duke
parents:
diff changeset
649 "Bad string initial value in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
650 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
651 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
652 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
653 "Unable to set initial value %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
654 constantvalue_index, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
655 }
a61af66fc99e Initial load
duke
parents:
diff changeset
656 }
a61af66fc99e Initial load
duke
parents:
diff changeset
657
a61af66fc99e Initial load
duke
parents:
diff changeset
658
a61af66fc99e Initial load
duke
parents:
diff changeset
659 // Parse attributes for a field.
a61af66fc99e Initial load
duke
parents:
diff changeset
660 void ClassFileParser::parse_field_attributes(constantPoolHandle cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
661 u2 attributes_count,
a61af66fc99e Initial load
duke
parents:
diff changeset
662 bool is_static, u2 signature_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
663 u2* constantvalue_index_addr,
a61af66fc99e Initial load
duke
parents:
diff changeset
664 bool* is_synthetic_addr,
a61af66fc99e Initial load
duke
parents:
diff changeset
665 u2* generic_signature_index_addr,
a61af66fc99e Initial load
duke
parents:
diff changeset
666 typeArrayHandle* field_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
667 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
668 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
669 assert(attributes_count > 0, "length should be greater than 0");
a61af66fc99e Initial load
duke
parents:
diff changeset
670 u2 constantvalue_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
671 u2 generic_signature_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
672 bool is_synthetic = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
673 u1* runtime_visible_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
674 int runtime_visible_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
675 u1* runtime_invisible_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
676 int runtime_invisible_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
677 while (attributes_count--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
678 cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length
a61af66fc99e Initial load
duke
parents:
diff changeset
679 u2 attribute_name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
680 u4 attribute_length = cfs->get_u4_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
681 check_property(valid_cp_range(attribute_name_index, cp->length()) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
682 cp->tag_at(attribute_name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
683 "Invalid field attribute index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
684 attribute_name_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
685 CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
686 symbolOop attribute_name = cp->symbol_at(attribute_name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
687 if (is_static && attribute_name == vmSymbols::tag_constant_value()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
688 // ignore if non-static
a61af66fc99e Initial load
duke
parents:
diff changeset
689 if (constantvalue_index != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
690 classfile_parse_error("Duplicate ConstantValue attribute in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
691 }
a61af66fc99e Initial load
duke
parents:
diff changeset
692 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
693 attribute_length == 2,
a61af66fc99e Initial load
duke
parents:
diff changeset
694 "Invalid ConstantValue field attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
695 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
696 constantvalue_index = cfs->get_u2(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
697 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
698 verify_constantvalue(constantvalue_index, signature_index, cp, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
699 }
a61af66fc99e Initial load
duke
parents:
diff changeset
700 } else if (attribute_name == vmSymbols::tag_synthetic()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
701 if (attribute_length != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
702 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
703 "Invalid Synthetic field attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
704 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
705 }
a61af66fc99e Initial load
duke
parents:
diff changeset
706 is_synthetic = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
707 } else if (attribute_name == vmSymbols::tag_deprecated()) { // 4276120
a61af66fc99e Initial load
duke
parents:
diff changeset
708 if (attribute_length != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
709 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
710 "Invalid Deprecated field attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
711 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
712 }
a61af66fc99e Initial load
duke
parents:
diff changeset
713 } else if (_major_version >= JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
714 if (attribute_name == vmSymbols::tag_signature()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
715 if (attribute_length != 2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
716 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
717 "Wrong size %u for field's Signature attribute in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
718 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
719 }
a61af66fc99e Initial load
duke
parents:
diff changeset
720 generic_signature_index = cfs->get_u2(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
721 } else if (attribute_name == vmSymbols::tag_runtime_visible_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
722 runtime_visible_annotations_length = attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
723 runtime_visible_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
724 assert(runtime_visible_annotations != NULL, "null visible annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
725 cfs->skip_u1(runtime_visible_annotations_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
726 } else if (PreserveAllAnnotations && attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
727 runtime_invisible_annotations_length = attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
728 runtime_invisible_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
729 assert(runtime_invisible_annotations != NULL, "null invisible annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
730 cfs->skip_u1(runtime_invisible_annotations_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
731 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
732 cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
733 }
a61af66fc99e Initial load
duke
parents:
diff changeset
734 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
735 cfs->skip_u1(attribute_length, CHECK); // Skip unknown attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
736 }
a61af66fc99e Initial load
duke
parents:
diff changeset
737 }
a61af66fc99e Initial load
duke
parents:
diff changeset
738
a61af66fc99e Initial load
duke
parents:
diff changeset
739 *constantvalue_index_addr = constantvalue_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
740 *is_synthetic_addr = is_synthetic;
a61af66fc99e Initial load
duke
parents:
diff changeset
741 *generic_signature_index_addr = generic_signature_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
742 *field_annotations = assemble_annotations(runtime_visible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
743 runtime_visible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
744 runtime_invisible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
745 runtime_invisible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
746 CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
747 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
748 }
a61af66fc99e Initial load
duke
parents:
diff changeset
749
a61af66fc99e Initial load
duke
parents:
diff changeset
750
a61af66fc99e Initial load
duke
parents:
diff changeset
751 // Field allocation types. Used for computing field offsets.
a61af66fc99e Initial load
duke
parents:
diff changeset
752
a61af66fc99e Initial load
duke
parents:
diff changeset
753 enum FieldAllocationType {
a61af66fc99e Initial load
duke
parents:
diff changeset
754 STATIC_OOP, // Oops
a61af66fc99e Initial load
duke
parents:
diff changeset
755 STATIC_BYTE, // Boolean, Byte, char
a61af66fc99e Initial load
duke
parents:
diff changeset
756 STATIC_SHORT, // shorts
a61af66fc99e Initial load
duke
parents:
diff changeset
757 STATIC_WORD, // ints
a61af66fc99e Initial load
duke
parents:
diff changeset
758 STATIC_DOUBLE, // long or double
a61af66fc99e Initial load
duke
parents:
diff changeset
759 STATIC_ALIGNED_DOUBLE,// aligned long or double
a61af66fc99e Initial load
duke
parents:
diff changeset
760 NONSTATIC_OOP,
a61af66fc99e Initial load
duke
parents:
diff changeset
761 NONSTATIC_BYTE,
a61af66fc99e Initial load
duke
parents:
diff changeset
762 NONSTATIC_SHORT,
a61af66fc99e Initial load
duke
parents:
diff changeset
763 NONSTATIC_WORD,
a61af66fc99e Initial load
duke
parents:
diff changeset
764 NONSTATIC_DOUBLE,
a61af66fc99e Initial load
duke
parents:
diff changeset
765 NONSTATIC_ALIGNED_DOUBLE
a61af66fc99e Initial load
duke
parents:
diff changeset
766 };
a61af66fc99e Initial load
duke
parents:
diff changeset
767
a61af66fc99e Initial load
duke
parents:
diff changeset
768
a61af66fc99e Initial load
duke
parents:
diff changeset
769 struct FieldAllocationCount {
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
770 unsigned int static_oop_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
771 unsigned int static_byte_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
772 unsigned int static_short_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
773 unsigned int static_word_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
774 unsigned int static_double_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
775 unsigned int nonstatic_oop_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
776 unsigned int nonstatic_byte_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
777 unsigned int nonstatic_short_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
778 unsigned int nonstatic_word_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
779 unsigned int nonstatic_double_count;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
780 };
a61af66fc99e Initial load
duke
parents:
diff changeset
781
a61af66fc99e Initial load
duke
parents:
diff changeset
782 typeArrayHandle ClassFileParser::parse_fields(constantPoolHandle cp, bool is_interface,
a61af66fc99e Initial load
duke
parents:
diff changeset
783 struct FieldAllocationCount *fac,
a61af66fc99e Initial load
duke
parents:
diff changeset
784 objArrayHandle* fields_annotations, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
785 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
786 typeArrayHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
787 cfs->guarantee_more(2, CHECK_(nullHandle)); // length
a61af66fc99e Initial load
duke
parents:
diff changeset
788 u2 length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
789 // Tuples of shorts [access, name index, sig index, initial value index, byte offset, generic signature index]
a61af66fc99e Initial load
duke
parents:
diff changeset
790 typeArrayOop new_fields = oopFactory::new_permanent_shortArray(length*instanceKlass::next_offset, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
791 typeArrayHandle fields(THREAD, new_fields);
a61af66fc99e Initial load
duke
parents:
diff changeset
792
a61af66fc99e Initial load
duke
parents:
diff changeset
793 int index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
794 typeArrayHandle field_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
795 for (int n = 0; n < length; n++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
796 cfs->guarantee_more(8, CHECK_(nullHandle)); // access_flags, name_index, descriptor_index, attributes_count
a61af66fc99e Initial load
duke
parents:
diff changeset
797
a61af66fc99e Initial load
duke
parents:
diff changeset
798 AccessFlags access_flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
799 jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_FIELD_MODIFIERS;
a61af66fc99e Initial load
duke
parents:
diff changeset
800 verify_legal_field_modifiers(flags, is_interface, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
801 access_flags.set_flags(flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
802
a61af66fc99e Initial load
duke
parents:
diff changeset
803 u2 name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
804 int cp_size = cp->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
805 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
806 valid_cp_range(name_index, cp_size) && cp->tag_at(name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
807 "Invalid constant pool index %u for field name in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
808 name_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
809 symbolHandle name(THREAD, cp->symbol_at(name_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
810 verify_legal_field_name(name, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
811
a61af66fc99e Initial load
duke
parents:
diff changeset
812 u2 signature_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
813 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
814 valid_cp_range(signature_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
815 cp->tag_at(signature_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
816 "Invalid constant pool index %u for field signature in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
817 signature_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
818 symbolHandle sig(THREAD, cp->symbol_at(signature_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
819 verify_legal_field_signature(name, sig, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
820
a61af66fc99e Initial load
duke
parents:
diff changeset
821 u2 constantvalue_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
822 bool is_synthetic = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
823 u2 generic_signature_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
824 bool is_static = access_flags.is_static();
a61af66fc99e Initial load
duke
parents:
diff changeset
825
a61af66fc99e Initial load
duke
parents:
diff changeset
826 u2 attributes_count = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
827 if (attributes_count > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
828 parse_field_attributes(cp, attributes_count, is_static, signature_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
829 &constantvalue_index, &is_synthetic,
a61af66fc99e Initial load
duke
parents:
diff changeset
830 &generic_signature_index, &field_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
831 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
832 if (field_annotations.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
833 if (fields_annotations->is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
834 objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
835 *fields_annotations = objArrayHandle(THREAD, md);
a61af66fc99e Initial load
duke
parents:
diff changeset
836 }
a61af66fc99e Initial load
duke
parents:
diff changeset
837 (*fields_annotations)->obj_at_put(n, field_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
838 }
a61af66fc99e Initial load
duke
parents:
diff changeset
839 if (is_synthetic) {
a61af66fc99e Initial load
duke
parents:
diff changeset
840 access_flags.set_is_synthetic();
a61af66fc99e Initial load
duke
parents:
diff changeset
841 }
a61af66fc99e Initial load
duke
parents:
diff changeset
842 }
a61af66fc99e Initial load
duke
parents:
diff changeset
843
a61af66fc99e Initial load
duke
parents:
diff changeset
844 fields->short_at_put(index++, access_flags.as_short());
a61af66fc99e Initial load
duke
parents:
diff changeset
845 fields->short_at_put(index++, name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
846 fields->short_at_put(index++, signature_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
847 fields->short_at_put(index++, constantvalue_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
848
a61af66fc99e Initial load
duke
parents:
diff changeset
849 // Remember how many oops we encountered and compute allocation type
a61af66fc99e Initial load
duke
parents:
diff changeset
850 BasicType type = cp->basic_type_for_signature_at(signature_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
851 FieldAllocationType atype;
a61af66fc99e Initial load
duke
parents:
diff changeset
852 if ( is_static ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
853 switch ( type ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
854 case T_BOOLEAN:
a61af66fc99e Initial load
duke
parents:
diff changeset
855 case T_BYTE:
a61af66fc99e Initial load
duke
parents:
diff changeset
856 fac->static_byte_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
857 atype = STATIC_BYTE;
a61af66fc99e Initial load
duke
parents:
diff changeset
858 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
859 case T_LONG:
a61af66fc99e Initial load
duke
parents:
diff changeset
860 case T_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
861 if (Universe::field_type_should_be_aligned(type)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
862 atype = STATIC_ALIGNED_DOUBLE;
a61af66fc99e Initial load
duke
parents:
diff changeset
863 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
864 atype = STATIC_DOUBLE;
a61af66fc99e Initial load
duke
parents:
diff changeset
865 }
a61af66fc99e Initial load
duke
parents:
diff changeset
866 fac->static_double_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
867 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
868 case T_CHAR:
a61af66fc99e Initial load
duke
parents:
diff changeset
869 case T_SHORT:
a61af66fc99e Initial load
duke
parents:
diff changeset
870 fac->static_short_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
871 atype = STATIC_SHORT;
a61af66fc99e Initial load
duke
parents:
diff changeset
872 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
873 case T_FLOAT:
a61af66fc99e Initial load
duke
parents:
diff changeset
874 case T_INT:
a61af66fc99e Initial load
duke
parents:
diff changeset
875 fac->static_word_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
876 atype = STATIC_WORD;
a61af66fc99e Initial load
duke
parents:
diff changeset
877 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
878 case T_ARRAY:
a61af66fc99e Initial load
duke
parents:
diff changeset
879 case T_OBJECT:
a61af66fc99e Initial load
duke
parents:
diff changeset
880 fac->static_oop_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
881 atype = STATIC_OOP;
a61af66fc99e Initial load
duke
parents:
diff changeset
882 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
883 case T_ADDRESS:
a61af66fc99e Initial load
duke
parents:
diff changeset
884 case T_VOID:
a61af66fc99e Initial load
duke
parents:
diff changeset
885 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
886 assert(0, "bad field type");
a61af66fc99e Initial load
duke
parents:
diff changeset
887 }
a61af66fc99e Initial load
duke
parents:
diff changeset
888 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
889 switch ( type ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
890 case T_BOOLEAN:
a61af66fc99e Initial load
duke
parents:
diff changeset
891 case T_BYTE:
a61af66fc99e Initial load
duke
parents:
diff changeset
892 fac->nonstatic_byte_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
893 atype = NONSTATIC_BYTE;
a61af66fc99e Initial load
duke
parents:
diff changeset
894 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
895 case T_LONG:
a61af66fc99e Initial load
duke
parents:
diff changeset
896 case T_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
897 if (Universe::field_type_should_be_aligned(type)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
898 atype = NONSTATIC_ALIGNED_DOUBLE;
a61af66fc99e Initial load
duke
parents:
diff changeset
899 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
900 atype = NONSTATIC_DOUBLE;
a61af66fc99e Initial load
duke
parents:
diff changeset
901 }
a61af66fc99e Initial load
duke
parents:
diff changeset
902 fac->nonstatic_double_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
903 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
904 case T_CHAR:
a61af66fc99e Initial load
duke
parents:
diff changeset
905 case T_SHORT:
a61af66fc99e Initial load
duke
parents:
diff changeset
906 fac->nonstatic_short_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
907 atype = NONSTATIC_SHORT;
a61af66fc99e Initial load
duke
parents:
diff changeset
908 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
909 case T_FLOAT:
a61af66fc99e Initial load
duke
parents:
diff changeset
910 case T_INT:
a61af66fc99e Initial load
duke
parents:
diff changeset
911 fac->nonstatic_word_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
912 atype = NONSTATIC_WORD;
a61af66fc99e Initial load
duke
parents:
diff changeset
913 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
914 case T_ARRAY:
a61af66fc99e Initial load
duke
parents:
diff changeset
915 case T_OBJECT:
a61af66fc99e Initial load
duke
parents:
diff changeset
916 fac->nonstatic_oop_count++;
a61af66fc99e Initial load
duke
parents:
diff changeset
917 atype = NONSTATIC_OOP;
a61af66fc99e Initial load
duke
parents:
diff changeset
918 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
919 case T_ADDRESS:
a61af66fc99e Initial load
duke
parents:
diff changeset
920 case T_VOID:
a61af66fc99e Initial load
duke
parents:
diff changeset
921 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
922 assert(0, "bad field type");
a61af66fc99e Initial load
duke
parents:
diff changeset
923 }
a61af66fc99e Initial load
duke
parents:
diff changeset
924 }
a61af66fc99e Initial load
duke
parents:
diff changeset
925
a61af66fc99e Initial load
duke
parents:
diff changeset
926 // The correct offset is computed later (all oop fields will be located together)
a61af66fc99e Initial load
duke
parents:
diff changeset
927 // We temporarily store the allocation type in the offset field
a61af66fc99e Initial load
duke
parents:
diff changeset
928 fields->short_at_put(index++, atype);
a61af66fc99e Initial load
duke
parents:
diff changeset
929 fields->short_at_put(index++, 0); // Clear out high word of byte offset
a61af66fc99e Initial load
duke
parents:
diff changeset
930 fields->short_at_put(index++, generic_signature_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
931 }
a61af66fc99e Initial load
duke
parents:
diff changeset
932
a61af66fc99e Initial load
duke
parents:
diff changeset
933 if (_need_verify && length > 1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
934 // Check duplicated fields
a61af66fc99e Initial load
duke
parents:
diff changeset
935 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
936 NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
937 THREAD, NameSigHash*, HASH_ROW_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
938 initialize_hashtable(names_and_sigs);
a61af66fc99e Initial load
duke
parents:
diff changeset
939 bool dup = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
940 {
a61af66fc99e Initial load
duke
parents:
diff changeset
941 debug_only(No_Safepoint_Verifier nsv;)
a61af66fc99e Initial load
duke
parents:
diff changeset
942 for (int i = 0; i < length*instanceKlass::next_offset; i += instanceKlass::next_offset) {
a61af66fc99e Initial load
duke
parents:
diff changeset
943 int name_index = fields->ushort_at(i + instanceKlass::name_index_offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
944 symbolOop name = cp->symbol_at(name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
945 int sig_index = fields->ushort_at(i + instanceKlass::signature_index_offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
946 symbolOop sig = cp->symbol_at(sig_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
947 // If no duplicates, add name/signature in hashtable names_and_sigs.
a61af66fc99e Initial load
duke
parents:
diff changeset
948 if (!put_after_lookup(name, sig, names_and_sigs)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
949 dup = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
950 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
951 }
a61af66fc99e Initial load
duke
parents:
diff changeset
952 }
a61af66fc99e Initial load
duke
parents:
diff changeset
953 }
a61af66fc99e Initial load
duke
parents:
diff changeset
954 if (dup) {
a61af66fc99e Initial load
duke
parents:
diff changeset
955 classfile_parse_error("Duplicate field name&signature in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
956 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
957 }
a61af66fc99e Initial load
duke
parents:
diff changeset
958 }
a61af66fc99e Initial load
duke
parents:
diff changeset
959
a61af66fc99e Initial load
duke
parents:
diff changeset
960 return fields;
a61af66fc99e Initial load
duke
parents:
diff changeset
961 }
a61af66fc99e Initial load
duke
parents:
diff changeset
962
a61af66fc99e Initial load
duke
parents:
diff changeset
963
a61af66fc99e Initial load
duke
parents:
diff changeset
964 static void copy_u2_with_conversion(u2* dest, u2* src, int length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
965 while (length-- > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
966 *dest++ = Bytes::get_Java_u2((u1*) (src++));
a61af66fc99e Initial load
duke
parents:
diff changeset
967 }
a61af66fc99e Initial load
duke
parents:
diff changeset
968 }
a61af66fc99e Initial load
duke
parents:
diff changeset
969
a61af66fc99e Initial load
duke
parents:
diff changeset
970
a61af66fc99e Initial load
duke
parents:
diff changeset
971 typeArrayHandle ClassFileParser::parse_exception_table(u4 code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
972 u4 exception_table_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
973 constantPoolHandle cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
974 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
975 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
976 typeArrayHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
977
a61af66fc99e Initial load
duke
parents:
diff changeset
978 // 4-tuples of ints [start_pc, end_pc, handler_pc, catch_type index]
a61af66fc99e Initial load
duke
parents:
diff changeset
979 typeArrayOop eh = oopFactory::new_permanent_intArray(exception_table_length*4, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
980 typeArrayHandle exception_handlers = typeArrayHandle(THREAD, eh);
a61af66fc99e Initial load
duke
parents:
diff changeset
981
a61af66fc99e Initial load
duke
parents:
diff changeset
982 int index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
983 cfs->guarantee_more(8 * exception_table_length, CHECK_(nullHandle)); // start_pc, end_pc, handler_pc, catch_type_index
a61af66fc99e Initial load
duke
parents:
diff changeset
984 for (unsigned int i = 0; i < exception_table_length; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
985 u2 start_pc = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
986 u2 end_pc = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
987 u2 handler_pc = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
988 u2 catch_type_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
989 // Will check legal target after parsing code array in verifier.
a61af66fc99e Initial load
duke
parents:
diff changeset
990 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
991 guarantee_property((start_pc < end_pc) && (end_pc <= code_length),
a61af66fc99e Initial load
duke
parents:
diff changeset
992 "Illegal exception table range in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
993 guarantee_property(handler_pc < code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
994 "Illegal exception table handler in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
995 if (catch_type_index != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
996 guarantee_property(valid_cp_range(catch_type_index, cp->length()) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
997 is_klass_reference(cp, catch_type_index),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
998 "Catch type in exception table has bad constant type in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
999 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1000 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1001 exception_handlers->int_at_put(index++, start_pc);
a61af66fc99e Initial load
duke
parents:
diff changeset
1002 exception_handlers->int_at_put(index++, end_pc);
a61af66fc99e Initial load
duke
parents:
diff changeset
1003 exception_handlers->int_at_put(index++, handler_pc);
a61af66fc99e Initial load
duke
parents:
diff changeset
1004 exception_handlers->int_at_put(index++, catch_type_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1005 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1006 return exception_handlers;
a61af66fc99e Initial load
duke
parents:
diff changeset
1007 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1008
a61af66fc99e Initial load
duke
parents:
diff changeset
1009 void ClassFileParser::parse_linenumber_table(
a61af66fc99e Initial load
duke
parents:
diff changeset
1010 u4 code_attribute_length, u4 code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1011 CompressedLineNumberWriteStream** write_stream, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1012 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1013 unsigned int num_entries = cfs->get_u2(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1014
a61af66fc99e Initial load
duke
parents:
diff changeset
1015 // Each entry is a u2 start_pc, and a u2 line_number
a61af66fc99e Initial load
duke
parents:
diff changeset
1016 unsigned int length_in_bytes = num_entries * (sizeof(u2) + sizeof(u2));
a61af66fc99e Initial load
duke
parents:
diff changeset
1017
a61af66fc99e Initial load
duke
parents:
diff changeset
1018 // Verify line number attribute and table length
a61af66fc99e Initial load
duke
parents:
diff changeset
1019 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1020 code_attribute_length == sizeof(u2) + length_in_bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
1021 "LineNumberTable attribute has wrong length in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1022
a61af66fc99e Initial load
duke
parents:
diff changeset
1023 cfs->guarantee_more(length_in_bytes, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1024
a61af66fc99e Initial load
duke
parents:
diff changeset
1025 if ((*write_stream) == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1026 if (length_in_bytes > fixed_buffer_size) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1027 (*write_stream) = new CompressedLineNumberWriteStream(length_in_bytes);
a61af66fc99e Initial load
duke
parents:
diff changeset
1028 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1029 (*write_stream) = new CompressedLineNumberWriteStream(
a61af66fc99e Initial load
duke
parents:
diff changeset
1030 linenumbertable_buffer, fixed_buffer_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
1031 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1032 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1033
a61af66fc99e Initial load
duke
parents:
diff changeset
1034 while (num_entries-- > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1035 u2 bci = cfs->get_u2_fast(); // start_pc
a61af66fc99e Initial load
duke
parents:
diff changeset
1036 u2 line = cfs->get_u2_fast(); // line_number
a61af66fc99e Initial load
duke
parents:
diff changeset
1037 guarantee_property(bci < code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1038 "Invalid pc in LineNumberTable in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1039 (*write_stream)->write_pair(bci, line);
a61af66fc99e Initial load
duke
parents:
diff changeset
1040 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1041 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1042
a61af66fc99e Initial load
duke
parents:
diff changeset
1043
a61af66fc99e Initial load
duke
parents:
diff changeset
1044 // Class file LocalVariableTable elements.
a61af66fc99e Initial load
duke
parents:
diff changeset
1045 class Classfile_LVT_Element VALUE_OBJ_CLASS_SPEC {
a61af66fc99e Initial load
duke
parents:
diff changeset
1046 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1047 u2 start_bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
1048 u2 length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1049 u2 name_cp_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1050 u2 descriptor_cp_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1051 u2 slot;
a61af66fc99e Initial load
duke
parents:
diff changeset
1052 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1053
a61af66fc99e Initial load
duke
parents:
diff changeset
1054
a61af66fc99e Initial load
duke
parents:
diff changeset
1055 class LVT_Hash: public CHeapObj {
a61af66fc99e Initial load
duke
parents:
diff changeset
1056 public:
a61af66fc99e Initial load
duke
parents:
diff changeset
1057 LocalVariableTableElement *_elem; // element
a61af66fc99e Initial load
duke
parents:
diff changeset
1058 LVT_Hash* _next; // Next entry in hash table
a61af66fc99e Initial load
duke
parents:
diff changeset
1059 };
a61af66fc99e Initial load
duke
parents:
diff changeset
1060
a61af66fc99e Initial load
duke
parents:
diff changeset
1061 unsigned int hash(LocalVariableTableElement *elem) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1062 unsigned int raw_hash = elem->start_bci;
a61af66fc99e Initial load
duke
parents:
diff changeset
1063
a61af66fc99e Initial load
duke
parents:
diff changeset
1064 raw_hash = elem->length + raw_hash * 37;
a61af66fc99e Initial load
duke
parents:
diff changeset
1065 raw_hash = elem->name_cp_index + raw_hash * 37;
a61af66fc99e Initial load
duke
parents:
diff changeset
1066 raw_hash = elem->slot + raw_hash * 37;
a61af66fc99e Initial load
duke
parents:
diff changeset
1067
a61af66fc99e Initial load
duke
parents:
diff changeset
1068 return raw_hash % HASH_ROW_SIZE;
a61af66fc99e Initial load
duke
parents:
diff changeset
1069 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1070
a61af66fc99e Initial load
duke
parents:
diff changeset
1071 void initialize_hashtable(LVT_Hash** table) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1072 for (int i = 0; i < HASH_ROW_SIZE; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1073 table[i] = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1074 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1075 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1076
a61af66fc99e Initial load
duke
parents:
diff changeset
1077 void clear_hashtable(LVT_Hash** table) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1078 for (int i = 0; i < HASH_ROW_SIZE; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1079 LVT_Hash* current = table[i];
a61af66fc99e Initial load
duke
parents:
diff changeset
1080 LVT_Hash* next;
a61af66fc99e Initial load
duke
parents:
diff changeset
1081 while (current != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1082 next = current->_next;
a61af66fc99e Initial load
duke
parents:
diff changeset
1083 current->_next = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1084 delete(current);
a61af66fc99e Initial load
duke
parents:
diff changeset
1085 current = next;
a61af66fc99e Initial load
duke
parents:
diff changeset
1086 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1087 table[i] = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1088 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1089 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1090
a61af66fc99e Initial load
duke
parents:
diff changeset
1091 LVT_Hash* LVT_lookup(LocalVariableTableElement *elem, int index, LVT_Hash** table) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1092 LVT_Hash* entry = table[index];
a61af66fc99e Initial load
duke
parents:
diff changeset
1093
a61af66fc99e Initial load
duke
parents:
diff changeset
1094 /*
a61af66fc99e Initial load
duke
parents:
diff changeset
1095 * 3-tuple start_bci/length/slot has to be unique key,
a61af66fc99e Initial load
duke
parents:
diff changeset
1096 * so the following comparison seems to be redundant:
a61af66fc99e Initial load
duke
parents:
diff changeset
1097 * && elem->name_cp_index == entry->_elem->name_cp_index
a61af66fc99e Initial load
duke
parents:
diff changeset
1098 */
a61af66fc99e Initial load
duke
parents:
diff changeset
1099 while (entry != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1100 if (elem->start_bci == entry->_elem->start_bci
a61af66fc99e Initial load
duke
parents:
diff changeset
1101 && elem->length == entry->_elem->length
a61af66fc99e Initial load
duke
parents:
diff changeset
1102 && elem->name_cp_index == entry->_elem->name_cp_index
a61af66fc99e Initial load
duke
parents:
diff changeset
1103 && elem->slot == entry->_elem->slot
a61af66fc99e Initial load
duke
parents:
diff changeset
1104 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1105 return entry;
a61af66fc99e Initial load
duke
parents:
diff changeset
1106 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1107 entry = entry->_next;
a61af66fc99e Initial load
duke
parents:
diff changeset
1108 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1109 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1110 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1111
a61af66fc99e Initial load
duke
parents:
diff changeset
1112 // Return false if the local variable is found in table.
a61af66fc99e Initial load
duke
parents:
diff changeset
1113 // Return true if no duplicate is found.
a61af66fc99e Initial load
duke
parents:
diff changeset
1114 // And local variable is added as a new entry in table.
a61af66fc99e Initial load
duke
parents:
diff changeset
1115 bool LVT_put_after_lookup(LocalVariableTableElement *elem, LVT_Hash** table) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1116 // First lookup for duplicates
a61af66fc99e Initial load
duke
parents:
diff changeset
1117 int index = hash(elem);
a61af66fc99e Initial load
duke
parents:
diff changeset
1118 LVT_Hash* entry = LVT_lookup(elem, index, table);
a61af66fc99e Initial load
duke
parents:
diff changeset
1119
a61af66fc99e Initial load
duke
parents:
diff changeset
1120 if (entry != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1121 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1122 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1123 // No duplicate is found, allocate a new entry and fill it.
a61af66fc99e Initial load
duke
parents:
diff changeset
1124 if ((entry = new LVT_Hash()) == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1125 return false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1126 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1127 entry->_elem = elem;
a61af66fc99e Initial load
duke
parents:
diff changeset
1128
a61af66fc99e Initial load
duke
parents:
diff changeset
1129 // Insert into hash table
a61af66fc99e Initial load
duke
parents:
diff changeset
1130 entry->_next = table[index];
a61af66fc99e Initial load
duke
parents:
diff changeset
1131 table[index] = entry;
a61af66fc99e Initial load
duke
parents:
diff changeset
1132
a61af66fc99e Initial load
duke
parents:
diff changeset
1133 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1134 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1135
a61af66fc99e Initial load
duke
parents:
diff changeset
1136 void copy_lvt_element(Classfile_LVT_Element *src, LocalVariableTableElement *lvt) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1137 lvt->start_bci = Bytes::get_Java_u2((u1*) &src->start_bci);
a61af66fc99e Initial load
duke
parents:
diff changeset
1138 lvt->length = Bytes::get_Java_u2((u1*) &src->length);
a61af66fc99e Initial load
duke
parents:
diff changeset
1139 lvt->name_cp_index = Bytes::get_Java_u2((u1*) &src->name_cp_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1140 lvt->descriptor_cp_index = Bytes::get_Java_u2((u1*) &src->descriptor_cp_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1141 lvt->signature_cp_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1142 lvt->slot = Bytes::get_Java_u2((u1*) &src->slot);
a61af66fc99e Initial load
duke
parents:
diff changeset
1143 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1144
a61af66fc99e Initial load
duke
parents:
diff changeset
1145 // Function is used to parse both attributes:
a61af66fc99e Initial load
duke
parents:
diff changeset
1146 // LocalVariableTable (LVT) and LocalVariableTypeTable (LVTT)
a61af66fc99e Initial load
duke
parents:
diff changeset
1147 u2* ClassFileParser::parse_localvariable_table(u4 code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1148 u2 max_locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
1149 u4 code_attribute_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1150 constantPoolHandle cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
1151 u2* localvariable_table_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1152 bool isLVTT,
a61af66fc99e Initial load
duke
parents:
diff changeset
1153 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1154 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1155 const char * tbl_name = (isLVTT) ? "LocalVariableTypeTable" : "LocalVariableTable";
a61af66fc99e Initial load
duke
parents:
diff changeset
1156 *localvariable_table_length = cfs->get_u2(CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1157 unsigned int size = (*localvariable_table_length) * sizeof(Classfile_LVT_Element) / sizeof(u2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1158 // Verify local variable table attribute has right length
a61af66fc99e Initial load
duke
parents:
diff changeset
1159 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1160 guarantee_property(code_attribute_length == (sizeof(*localvariable_table_length) + size * sizeof(u2)),
a61af66fc99e Initial load
duke
parents:
diff changeset
1161 "%s has wrong length in class file %s", tbl_name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1162 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1163 u2* localvariable_table_start = cfs->get_u2_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1164 assert(localvariable_table_start != NULL, "null local variable table");
a61af66fc99e Initial load
duke
parents:
diff changeset
1165 if (!_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1166 cfs->skip_u2_fast(size);
a61af66fc99e Initial load
duke
parents:
diff changeset
1167 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1168 cfs->guarantee_more(size * 2, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1169 for(int i = 0; i < (*localvariable_table_length); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1170 u2 start_pc = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1171 u2 length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1172 u2 name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1173 u2 descriptor_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1174 u2 index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1175 // Assign to a u4 to avoid overflow
a61af66fc99e Initial load
duke
parents:
diff changeset
1176 u4 end_pc = (u4)start_pc + (u4)length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1177
a61af66fc99e Initial load
duke
parents:
diff changeset
1178 if (start_pc >= code_length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1179 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
1180 "Invalid start_pc %u in %s in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1181 start_pc, tbl_name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1182 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1183 if (end_pc > code_length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1184 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
1185 "Invalid length %u in %s in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1186 length, tbl_name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1187 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1188 int cp_size = cp->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1189 guarantee_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1190 valid_cp_range(name_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1191 cp->tag_at(name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1192 "Name index %u in %s has bad constant type in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1193 name_index, tbl_name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1194 guarantee_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1195 valid_cp_range(descriptor_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1196 cp->tag_at(descriptor_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1197 "Signature index %u in %s has bad constant type in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1198 descriptor_index, tbl_name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1199
a61af66fc99e Initial load
duke
parents:
diff changeset
1200 symbolHandle name(THREAD, cp->symbol_at(name_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1201 symbolHandle sig(THREAD, cp->symbol_at(descriptor_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1202 verify_legal_field_name(name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1203 u2 extra_slot = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1204 if (!isLVTT) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1205 verify_legal_field_signature(name, sig, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1206
a61af66fc99e Initial load
duke
parents:
diff changeset
1207 // 4894874: check special cases for double and long local variables
a61af66fc99e Initial load
duke
parents:
diff changeset
1208 if (sig() == vmSymbols::type_signature(T_DOUBLE) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
1209 sig() == vmSymbols::type_signature(T_LONG)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1210 extra_slot = 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1211 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1212 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1213 guarantee_property((index + extra_slot) < max_locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
1214 "Invalid index %u in %s in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1215 index, tbl_name, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1216 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1217 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1218 return localvariable_table_start;
a61af66fc99e Initial load
duke
parents:
diff changeset
1219 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1220
a61af66fc99e Initial load
duke
parents:
diff changeset
1221
a61af66fc99e Initial load
duke
parents:
diff changeset
1222 void ClassFileParser::parse_type_array(u2 array_length, u4 code_length, u4* u1_index, u4* u2_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
1223 u1* u1_array, u2* u2_array, constantPoolHandle cp, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1224 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1225 u2 index = 0; // index in the array with long/double occupying two slots
a61af66fc99e Initial load
duke
parents:
diff changeset
1226 u4 i1 = *u1_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1227 u4 i2 = *u2_index + 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1228 for(int i = 0; i < array_length; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1229 u1 tag = u1_array[i1++] = cfs->get_u1(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1230 index++;
a61af66fc99e Initial load
duke
parents:
diff changeset
1231 if (tag == ITEM_Long || tag == ITEM_Double) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1232 index++;
a61af66fc99e Initial load
duke
parents:
diff changeset
1233 } else if (tag == ITEM_Object) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1234 u2 class_index = u2_array[i2++] = cfs->get_u2(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1235 guarantee_property(valid_cp_range(class_index, cp->length()) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
1236 is_klass_reference(cp, class_index),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1237 "Bad class index %u in StackMap in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1238 class_index, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1239 } else if (tag == ITEM_Uninitialized) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1240 u2 offset = u2_array[i2++] = cfs->get_u2(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1241 guarantee_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1242 offset < code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1243 "Bad uninitialized type offset %u in StackMap in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1244 offset, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1245 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1246 guarantee_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1247 tag <= (u1)ITEM_Uninitialized,
a61af66fc99e Initial load
duke
parents:
diff changeset
1248 "Unknown variable type %u in StackMap in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1249 tag, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1250 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1251 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1252 u2_array[*u2_index] = index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1253 *u1_index = i1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1254 *u2_index = i2;
a61af66fc99e Initial load
duke
parents:
diff changeset
1255 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1256
a61af66fc99e Initial load
duke
parents:
diff changeset
1257 typeArrayOop ClassFileParser::parse_stackmap_table(
a61af66fc99e Initial load
duke
parents:
diff changeset
1258 u4 code_attribute_length, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1259 if (code_attribute_length == 0)
a61af66fc99e Initial load
duke
parents:
diff changeset
1260 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1261
a61af66fc99e Initial load
duke
parents:
diff changeset
1262 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1263 u1* stackmap_table_start = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1264 assert(stackmap_table_start != NULL, "null stackmap table");
a61af66fc99e Initial load
duke
parents:
diff changeset
1265
a61af66fc99e Initial load
duke
parents:
diff changeset
1266 // check code_attribute_length first
a61af66fc99e Initial load
duke
parents:
diff changeset
1267 stream()->skip_u1(code_attribute_length, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1268
a61af66fc99e Initial load
duke
parents:
diff changeset
1269 if (!_need_verify && !DumpSharedSpaces) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1270 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1271 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1272
a61af66fc99e Initial load
duke
parents:
diff changeset
1273 typeArrayOop stackmap_data =
a61af66fc99e Initial load
duke
parents:
diff changeset
1274 oopFactory::new_permanent_byteArray(code_attribute_length, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1275
a61af66fc99e Initial load
duke
parents:
diff changeset
1276 stackmap_data->set_length(code_attribute_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
1277 memcpy((void*)stackmap_data->byte_at_addr(0),
a61af66fc99e Initial load
duke
parents:
diff changeset
1278 (void*)stackmap_table_start, code_attribute_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
1279 return stackmap_data;
a61af66fc99e Initial load
duke
parents:
diff changeset
1280 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1281
a61af66fc99e Initial load
duke
parents:
diff changeset
1282 u2* ClassFileParser::parse_checked_exceptions(u2* checked_exceptions_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1283 u4 method_attribute_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1284 constantPoolHandle cp, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1285 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1286 cfs->guarantee_more(2, CHECK_NULL); // checked_exceptions_length
a61af66fc99e Initial load
duke
parents:
diff changeset
1287 *checked_exceptions_length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1288 unsigned int size = (*checked_exceptions_length) * sizeof(CheckedExceptionElement) / sizeof(u2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1289 u2* checked_exceptions_start = cfs->get_u2_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1290 assert(checked_exceptions_start != NULL, "null checked exceptions");
a61af66fc99e Initial load
duke
parents:
diff changeset
1291 if (!_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1292 cfs->skip_u2_fast(size);
a61af66fc99e Initial load
duke
parents:
diff changeset
1293 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1294 // Verify each value in the checked exception table
a61af66fc99e Initial load
duke
parents:
diff changeset
1295 u2 checked_exception;
a61af66fc99e Initial load
duke
parents:
diff changeset
1296 u2 len = *checked_exceptions_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1297 cfs->guarantee_more(2 * len, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1298 for (int i = 0; i < len; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1299 checked_exception = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1300 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1301 valid_cp_range(checked_exception, cp->length()) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
1302 is_klass_reference(cp, checked_exception),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1303 "Exception name has bad type at constant pool %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1304 checked_exception, CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1305 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1306 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1307 // check exceptions attribute length
a61af66fc99e Initial load
duke
parents:
diff changeset
1308 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1309 guarantee_property(method_attribute_length == (sizeof(*checked_exceptions_length) +
a61af66fc99e Initial load
duke
parents:
diff changeset
1310 sizeof(u2) * size),
a61af66fc99e Initial load
duke
parents:
diff changeset
1311 "Exceptions attribute has wrong length in class file %s", CHECK_NULL);
a61af66fc99e Initial load
duke
parents:
diff changeset
1312 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1313 return checked_exceptions_start;
a61af66fc99e Initial load
duke
parents:
diff changeset
1314 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1315
a61af66fc99e Initial load
duke
parents:
diff changeset
1316
a61af66fc99e Initial load
duke
parents:
diff changeset
1317 #define MAX_ARGS_SIZE 255
a61af66fc99e Initial load
duke
parents:
diff changeset
1318 #define MAX_CODE_SIZE 65535
a61af66fc99e Initial load
duke
parents:
diff changeset
1319 #define INITIAL_MAX_LVT_NUMBER 256
a61af66fc99e Initial load
duke
parents:
diff changeset
1320
a61af66fc99e Initial load
duke
parents:
diff changeset
1321 // Note: the parse_method below is big and clunky because all parsing of the code and exceptions
a61af66fc99e Initial load
duke
parents:
diff changeset
1322 // attribute is inlined. This is curbersome to avoid since we inline most of the parts in the
a61af66fc99e Initial load
duke
parents:
diff changeset
1323 // methodOop to save footprint, so we only know the size of the resulting methodOop when the
a61af66fc99e Initial load
duke
parents:
diff changeset
1324 // entire method attribute is parsed.
a61af66fc99e Initial load
duke
parents:
diff changeset
1325 //
a61af66fc99e Initial load
duke
parents:
diff changeset
1326 // The promoted_flags parameter is used to pass relevant access_flags
a61af66fc99e Initial load
duke
parents:
diff changeset
1327 // from the method back up to the containing klass. These flag values
a61af66fc99e Initial load
duke
parents:
diff changeset
1328 // are added to klass's access_flags.
a61af66fc99e Initial load
duke
parents:
diff changeset
1329
a61af66fc99e Initial load
duke
parents:
diff changeset
1330 methodHandle ClassFileParser::parse_method(constantPoolHandle cp, bool is_interface,
a61af66fc99e Initial load
duke
parents:
diff changeset
1331 AccessFlags *promoted_flags,
a61af66fc99e Initial load
duke
parents:
diff changeset
1332 typeArrayHandle* method_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1333 typeArrayHandle* method_parameter_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1334 typeArrayHandle* method_default_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1335 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1336 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1337 methodHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
1338 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1339 // Parse fixed parts
a61af66fc99e Initial load
duke
parents:
diff changeset
1340 cfs->guarantee_more(8, CHECK_(nullHandle)); // access_flags, name_index, descriptor_index, attributes_count
a61af66fc99e Initial load
duke
parents:
diff changeset
1341
a61af66fc99e Initial load
duke
parents:
diff changeset
1342 int flags = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1343 u2 name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1344 int cp_size = cp->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1345 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1346 valid_cp_range(name_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1347 cp->tag_at(name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1348 "Illegal constant pool index %u for method name in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1349 name_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1350 symbolHandle name(THREAD, cp->symbol_at(name_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1351 verify_legal_method_name(name, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1352
a61af66fc99e Initial load
duke
parents:
diff changeset
1353 u2 signature_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1354 guarantee_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1355 valid_cp_range(signature_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1356 cp->tag_at(signature_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1357 "Illegal constant pool index %u for method signature in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1358 signature_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1359 symbolHandle signature(THREAD, cp->symbol_at(signature_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1360
a61af66fc99e Initial load
duke
parents:
diff changeset
1361 AccessFlags access_flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
1362 if (name == vmSymbols::class_initializer_name()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1363 // We ignore the access flags for a class initializer. (JVM Spec. p. 116)
a61af66fc99e Initial load
duke
parents:
diff changeset
1364 flags = JVM_ACC_STATIC;
a61af66fc99e Initial load
duke
parents:
diff changeset
1365 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1366 verify_legal_method_modifiers(flags, is_interface, name, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1367 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1368
a61af66fc99e Initial load
duke
parents:
diff changeset
1369 int args_size = -1; // only used when _need_verify is true
a61af66fc99e Initial load
duke
parents:
diff changeset
1370 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1371 args_size = ((flags & JVM_ACC_STATIC) ? 0 : 1) +
a61af66fc99e Initial load
duke
parents:
diff changeset
1372 verify_legal_method_signature(name, signature, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1373 if (args_size > MAX_ARGS_SIZE) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1374 classfile_parse_error("Too many arguments in method signature in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1375 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1376 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1377
a61af66fc99e Initial load
duke
parents:
diff changeset
1378 access_flags.set_flags(flags & JVM_RECOGNIZED_METHOD_MODIFIERS);
a61af66fc99e Initial load
duke
parents:
diff changeset
1379
a61af66fc99e Initial load
duke
parents:
diff changeset
1380 // Default values for code and exceptions attribute elements
a61af66fc99e Initial load
duke
parents:
diff changeset
1381 u2 max_stack = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1382 u2 max_locals = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1383 u4 code_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1384 u1* code_start = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1385 u2 exception_table_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1386 typeArrayHandle exception_handlers(THREAD, Universe::the_empty_int_array());
a61af66fc99e Initial load
duke
parents:
diff changeset
1387 u2 checked_exceptions_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1388 u2* checked_exceptions_start = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1389 CompressedLineNumberWriteStream* linenumber_table = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1390 int linenumber_table_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1391 int total_lvt_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1392 u2 lvt_cnt = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1393 u2 lvtt_cnt = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1394 bool lvt_allocated = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1395 u2 max_lvt_cnt = INITIAL_MAX_LVT_NUMBER;
a61af66fc99e Initial load
duke
parents:
diff changeset
1396 u2 max_lvtt_cnt = INITIAL_MAX_LVT_NUMBER;
a61af66fc99e Initial load
duke
parents:
diff changeset
1397 u2* localvariable_table_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1398 u2** localvariable_table_start;
a61af66fc99e Initial load
duke
parents:
diff changeset
1399 u2* localvariable_type_table_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1400 u2** localvariable_type_table_start;
a61af66fc99e Initial load
duke
parents:
diff changeset
1401 bool parsed_code_attribute = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1402 bool parsed_checked_exceptions_attribute = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1403 bool parsed_stackmap_attribute = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1404 // stackmap attribute - JDK1.5
a61af66fc99e Initial load
duke
parents:
diff changeset
1405 typeArrayHandle stackmap_data;
a61af66fc99e Initial load
duke
parents:
diff changeset
1406 u2 generic_signature_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1407 u1* runtime_visible_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1408 int runtime_visible_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1409 u1* runtime_invisible_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1410 int runtime_invisible_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1411 u1* runtime_visible_parameter_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1412 int runtime_visible_parameter_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1413 u1* runtime_invisible_parameter_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1414 int runtime_invisible_parameter_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1415 u1* annotation_default = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
1416 int annotation_default_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
1417
a61af66fc99e Initial load
duke
parents:
diff changeset
1418 // Parse code and exceptions attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
1419 u2 method_attributes_count = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1420 while (method_attributes_count--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1421 cfs->guarantee_more(6, CHECK_(nullHandle)); // method_attribute_name_index, method_attribute_length
a61af66fc99e Initial load
duke
parents:
diff changeset
1422 u2 method_attribute_name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1423 u4 method_attribute_length = cfs->get_u4_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1424 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1425 valid_cp_range(method_attribute_name_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1426 cp->tag_at(method_attribute_name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1427 "Invalid method attribute name index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1428 method_attribute_name_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1429
a61af66fc99e Initial load
duke
parents:
diff changeset
1430 symbolOop method_attribute_name = cp->symbol_at(method_attribute_name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1431 if (method_attribute_name == vmSymbols::tag_code()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1432 // Parse Code attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
1433 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1434 guarantee_property(!access_flags.is_native() && !access_flags.is_abstract(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1435 "Code attribute in native or abstract methods in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1436 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1437 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1438 if (parsed_code_attribute) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1439 classfile_parse_error("Multiple Code attributes in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1440 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1441 parsed_code_attribute = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1442
a61af66fc99e Initial load
duke
parents:
diff changeset
1443 // Stack size, locals size, and code size
a61af66fc99e Initial load
duke
parents:
diff changeset
1444 if (_major_version == 45 && _minor_version <= 2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1445 cfs->guarantee_more(4, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1446 max_stack = cfs->get_u1_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1447 max_locals = cfs->get_u1_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1448 code_length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1449 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1450 cfs->guarantee_more(8, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1451 max_stack = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1452 max_locals = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1453 code_length = cfs->get_u4_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1454 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1455 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1456 guarantee_property(args_size <= max_locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
1457 "Arguments can't fit into locals in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1458 guarantee_property(code_length > 0 && code_length <= MAX_CODE_SIZE,
a61af66fc99e Initial load
duke
parents:
diff changeset
1459 "Invalid method Code length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1460 code_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1461 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1462 // Code pointer
a61af66fc99e Initial load
duke
parents:
diff changeset
1463 code_start = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1464 assert(code_start != NULL, "null code start");
a61af66fc99e Initial load
duke
parents:
diff changeset
1465 cfs->guarantee_more(code_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1466 cfs->skip_u1_fast(code_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
1467
a61af66fc99e Initial load
duke
parents:
diff changeset
1468 // Exception handler table
a61af66fc99e Initial load
duke
parents:
diff changeset
1469 cfs->guarantee_more(2, CHECK_(nullHandle)); // exception_table_length
a61af66fc99e Initial load
duke
parents:
diff changeset
1470 exception_table_length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1471 if (exception_table_length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1472 exception_handlers =
a61af66fc99e Initial load
duke
parents:
diff changeset
1473 parse_exception_table(code_length, exception_table_length, cp, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1474 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1475
a61af66fc99e Initial load
duke
parents:
diff changeset
1476 // Parse additional attributes in code attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
1477 cfs->guarantee_more(2, CHECK_(nullHandle)); // code_attributes_count
a61af66fc99e Initial load
duke
parents:
diff changeset
1478 u2 code_attributes_count = cfs->get_u2_fast();
92
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1479
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1480 unsigned int calculated_attribute_length = 0;
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1481
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1482 if (_major_version > 45 || (_major_version == 45 && _minor_version > 2)) {
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1483 calculated_attribute_length =
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1484 sizeof(max_stack) + sizeof(max_locals) + sizeof(code_length);
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1485 } else {
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1486 // max_stack, locals and length are smaller in pre-version 45.2 classes
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1487 calculated_attribute_length = sizeof(u1) + sizeof(u1) + sizeof(u2);
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1488 }
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1489 calculated_attribute_length +=
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1490 code_length +
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1491 sizeof(exception_table_length) +
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1492 sizeof(code_attributes_count) +
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1493 exception_table_length *
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1494 ( sizeof(u2) + // start_pc
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1495 sizeof(u2) + // end_pc
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1496 sizeof(u2) + // handler_pc
ebec5b9731e2 6615981: JVM class file parser incorrectly rejects class files with version < 45.2
kamg
parents: 0
diff changeset
1497 sizeof(u2) ); // catch_type_index
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1498
a61af66fc99e Initial load
duke
parents:
diff changeset
1499 while (code_attributes_count--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1500 cfs->guarantee_more(6, CHECK_(nullHandle)); // code_attribute_name_index, code_attribute_length
a61af66fc99e Initial load
duke
parents:
diff changeset
1501 u2 code_attribute_name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1502 u4 code_attribute_length = cfs->get_u4_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1503 calculated_attribute_length += code_attribute_length +
a61af66fc99e Initial load
duke
parents:
diff changeset
1504 sizeof(code_attribute_name_index) +
a61af66fc99e Initial load
duke
parents:
diff changeset
1505 sizeof(code_attribute_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
1506 check_property(valid_cp_range(code_attribute_name_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1507 cp->tag_at(code_attribute_name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1508 "Invalid code attribute name index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1509 code_attribute_name_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
1510 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1511 if (LoadLineNumberTables &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1512 cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_line_number_table()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1513 // Parse and compress line number table
a61af66fc99e Initial load
duke
parents:
diff changeset
1514 parse_linenumber_table(code_attribute_length, code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1515 &linenumber_table, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1516
a61af66fc99e Initial load
duke
parents:
diff changeset
1517 } else if (LoadLocalVariableTables &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1518 cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_table()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1519 // Parse local variable table
a61af66fc99e Initial load
duke
parents:
diff changeset
1520 if (!lvt_allocated) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1521 localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1522 THREAD, u2, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1523 localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1524 THREAD, u2*, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1525 localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1526 THREAD, u2, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1527 localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1528 THREAD, u2*, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1529 lvt_allocated = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1530 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1531 if (lvt_cnt == max_lvt_cnt) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1532 max_lvt_cnt <<= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1533 REALLOC_RESOURCE_ARRAY(u2, localvariable_table_length, lvt_cnt, max_lvt_cnt);
a61af66fc99e Initial load
duke
parents:
diff changeset
1534 REALLOC_RESOURCE_ARRAY(u2*, localvariable_table_start, lvt_cnt, max_lvt_cnt);
a61af66fc99e Initial load
duke
parents:
diff changeset
1535 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1536 localvariable_table_start[lvt_cnt] =
a61af66fc99e Initial load
duke
parents:
diff changeset
1537 parse_localvariable_table(code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1538 max_locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
1539 code_attribute_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1540 cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
1541 &localvariable_table_length[lvt_cnt],
a61af66fc99e Initial load
duke
parents:
diff changeset
1542 false, // is not LVTT
a61af66fc99e Initial load
duke
parents:
diff changeset
1543 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1544 total_lvt_length += localvariable_table_length[lvt_cnt];
a61af66fc99e Initial load
duke
parents:
diff changeset
1545 lvt_cnt++;
a61af66fc99e Initial load
duke
parents:
diff changeset
1546 } else if (LoadLocalVariableTypeTables &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1547 _major_version >= JAVA_1_5_VERSION &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1548 cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_local_variable_type_table()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1549 if (!lvt_allocated) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1550 localvariable_table_length = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1551 THREAD, u2, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1552 localvariable_table_start = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1553 THREAD, u2*, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1554 localvariable_type_table_length = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1555 THREAD, u2, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1556 localvariable_type_table_start = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1557 THREAD, u2*, INITIAL_MAX_LVT_NUMBER);
a61af66fc99e Initial load
duke
parents:
diff changeset
1558 lvt_allocated = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1559 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1560 // Parse local variable type table
a61af66fc99e Initial load
duke
parents:
diff changeset
1561 if (lvtt_cnt == max_lvtt_cnt) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1562 max_lvtt_cnt <<= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
1563 REALLOC_RESOURCE_ARRAY(u2, localvariable_type_table_length, lvtt_cnt, max_lvtt_cnt);
a61af66fc99e Initial load
duke
parents:
diff changeset
1564 REALLOC_RESOURCE_ARRAY(u2*, localvariable_type_table_start, lvtt_cnt, max_lvtt_cnt);
a61af66fc99e Initial load
duke
parents:
diff changeset
1565 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1566 localvariable_type_table_start[lvtt_cnt] =
a61af66fc99e Initial load
duke
parents:
diff changeset
1567 parse_localvariable_table(code_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1568 max_locals,
a61af66fc99e Initial load
duke
parents:
diff changeset
1569 code_attribute_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1570 cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
1571 &localvariable_type_table_length[lvtt_cnt],
a61af66fc99e Initial load
duke
parents:
diff changeset
1572 true, // is LVTT
a61af66fc99e Initial load
duke
parents:
diff changeset
1573 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1574 lvtt_cnt++;
a61af66fc99e Initial load
duke
parents:
diff changeset
1575 } else if (UseSplitVerifier &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1576 _major_version >= Verifier::STACKMAP_ATTRIBUTE_MAJOR_VERSION &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1577 cp->symbol_at(code_attribute_name_index) == vmSymbols::tag_stack_map_table()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1578 // Stack map is only needed by the new verifier in JDK1.5.
a61af66fc99e Initial load
duke
parents:
diff changeset
1579 if (parsed_stackmap_attribute) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1580 classfile_parse_error("Multiple StackMapTable attributes in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1581 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1582 typeArrayOop sm =
a61af66fc99e Initial load
duke
parents:
diff changeset
1583 parse_stackmap_table(code_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1584 stackmap_data = typeArrayHandle(THREAD, sm);
a61af66fc99e Initial load
duke
parents:
diff changeset
1585 parsed_stackmap_attribute = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1586 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1587 // Skip unknown attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
1588 cfs->skip_u1(code_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1589 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1590 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1591 // check method attribute length
a61af66fc99e Initial load
duke
parents:
diff changeset
1592 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1593 guarantee_property(method_attribute_length == calculated_attribute_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1594 "Code segment has wrong length in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1595 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1596 } else if (method_attribute_name == vmSymbols::tag_exceptions()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1597 // Parse Exceptions attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
1598 if (parsed_checked_exceptions_attribute) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1599 classfile_parse_error("Multiple Exceptions attributes in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1600 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1601 parsed_checked_exceptions_attribute = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1602 checked_exceptions_start =
a61af66fc99e Initial load
duke
parents:
diff changeset
1603 parse_checked_exceptions(&checked_exceptions_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1604 method_attribute_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1605 cp, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1606 } else if (method_attribute_name == vmSymbols::tag_synthetic()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1607 if (method_attribute_length != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1608 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
1609 "Invalid Synthetic method attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1610 method_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1611 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1612 // Should we check that there hasn't already been a synthetic attribute?
a61af66fc99e Initial load
duke
parents:
diff changeset
1613 access_flags.set_is_synthetic();
a61af66fc99e Initial load
duke
parents:
diff changeset
1614 } else if (method_attribute_name == vmSymbols::tag_deprecated()) { // 4276120
a61af66fc99e Initial load
duke
parents:
diff changeset
1615 if (method_attribute_length != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1616 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
1617 "Invalid Deprecated method attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1618 method_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1619 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1620 } else if (_major_version >= JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1621 if (method_attribute_name == vmSymbols::tag_signature()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1622 if (method_attribute_length != 2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1623 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
1624 "Invalid Signature attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1625 method_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1626 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1627 cfs->guarantee_more(2, CHECK_(nullHandle)); // generic_signature_index
a61af66fc99e Initial load
duke
parents:
diff changeset
1628 generic_signature_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1629 } else if (method_attribute_name == vmSymbols::tag_runtime_visible_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1630 runtime_visible_annotations_length = method_attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1631 runtime_visible_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1632 assert(runtime_visible_annotations != NULL, "null visible annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
1633 cfs->skip_u1(runtime_visible_annotations_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1634 } else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1635 runtime_invisible_annotations_length = method_attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1636 runtime_invisible_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1637 assert(runtime_invisible_annotations != NULL, "null invisible annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
1638 cfs->skip_u1(runtime_invisible_annotations_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1639 } else if (method_attribute_name == vmSymbols::tag_runtime_visible_parameter_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1640 runtime_visible_parameter_annotations_length = method_attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1641 runtime_visible_parameter_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1642 assert(runtime_visible_parameter_annotations != NULL, "null visible parameter annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
1643 cfs->skip_u1(runtime_visible_parameter_annotations_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1644 } else if (PreserveAllAnnotations && method_attribute_name == vmSymbols::tag_runtime_invisible_parameter_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1645 runtime_invisible_parameter_annotations_length = method_attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1646 runtime_invisible_parameter_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1647 assert(runtime_invisible_parameter_annotations != NULL, "null invisible parameter annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
1648 cfs->skip_u1(runtime_invisible_parameter_annotations_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1649 } else if (method_attribute_name == vmSymbols::tag_annotation_default()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1650 annotation_default_length = method_attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
1651 annotation_default = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
1652 assert(annotation_default != NULL, "null annotation default");
a61af66fc99e Initial load
duke
parents:
diff changeset
1653 cfs->skip_u1(annotation_default_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1654 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1655 // Skip unknown attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
1656 cfs->skip_u1(method_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1657 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1658 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1659 // Skip unknown attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
1660 cfs->skip_u1(method_attribute_length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1661 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1662 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1663
a61af66fc99e Initial load
duke
parents:
diff changeset
1664 if (linenumber_table != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1665 linenumber_table->write_terminator();
a61af66fc99e Initial load
duke
parents:
diff changeset
1666 linenumber_table_length = linenumber_table->position();
a61af66fc99e Initial load
duke
parents:
diff changeset
1667 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1668
a61af66fc99e Initial load
duke
parents:
diff changeset
1669 // Make sure there's at least one Code attribute in non-native/non-abstract method
a61af66fc99e Initial load
duke
parents:
diff changeset
1670 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1671 guarantee_property(access_flags.is_native() || access_flags.is_abstract() || parsed_code_attribute,
a61af66fc99e Initial load
duke
parents:
diff changeset
1672 "Absent Code attribute in method that is not native or abstract in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1673 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1674
a61af66fc99e Initial load
duke
parents:
diff changeset
1675 // All sizing information for a methodOop is finally available, now create it
a61af66fc99e Initial load
duke
parents:
diff changeset
1676 methodOop m_oop = oopFactory::new_method(
a61af66fc99e Initial load
duke
parents:
diff changeset
1677 code_length, access_flags, linenumber_table_length,
518
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 474
diff changeset
1678 total_lvt_length, checked_exceptions_length,
0af8b0718fc9 6692899: CMS: many vm.parallel_class_loading tests fail with assert "missing Printezis mark"
jmasa
parents: 474
diff changeset
1679 methodOopDesc::IsSafeConc, CHECK_(nullHandle));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1680 methodHandle m (THREAD, m_oop);
a61af66fc99e Initial load
duke
parents:
diff changeset
1681
a61af66fc99e Initial load
duke
parents:
diff changeset
1682 ClassLoadingService::add_class_method_size(m_oop->size()*HeapWordSize);
a61af66fc99e Initial load
duke
parents:
diff changeset
1683
a61af66fc99e Initial load
duke
parents:
diff changeset
1684 // Fill in information from fixed part (access_flags already set)
a61af66fc99e Initial load
duke
parents:
diff changeset
1685 m->set_constants(cp());
a61af66fc99e Initial load
duke
parents:
diff changeset
1686 m->set_name_index(name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1687 m->set_signature_index(signature_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1688 m->set_generic_signature_index(generic_signature_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1689 #ifdef CC_INTERP
a61af66fc99e Initial load
duke
parents:
diff changeset
1690 // hmm is there a gc issue here??
a61af66fc99e Initial load
duke
parents:
diff changeset
1691 ResultTypeFinder rtf(cp->symbol_at(signature_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1692 m->set_result_index(rtf.type());
a61af66fc99e Initial load
duke
parents:
diff changeset
1693 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1694
a61af66fc99e Initial load
duke
parents:
diff changeset
1695 if (args_size >= 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1696 m->set_size_of_parameters(args_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
1697 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1698 m->compute_size_of_parameters(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1699 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1700 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
1701 if (args_size >= 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1702 m->compute_size_of_parameters(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1703 assert(args_size == m->size_of_parameters(), "");
a61af66fc99e Initial load
duke
parents:
diff changeset
1704 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1705 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
1706
a61af66fc99e Initial load
duke
parents:
diff changeset
1707 // Fill in code attribute information
a61af66fc99e Initial load
duke
parents:
diff changeset
1708 m->set_max_stack(max_stack);
a61af66fc99e Initial load
duke
parents:
diff changeset
1709 m->set_max_locals(max_locals);
a61af66fc99e Initial load
duke
parents:
diff changeset
1710 m->constMethod()->set_stackmap_data(stackmap_data());
a61af66fc99e Initial load
duke
parents:
diff changeset
1711
a61af66fc99e Initial load
duke
parents:
diff changeset
1712 /**
a61af66fc99e Initial load
duke
parents:
diff changeset
1713 * The exception_table field is the flag used to indicate
a61af66fc99e Initial load
duke
parents:
diff changeset
1714 * that the methodOop and it's associated constMethodOop are partially
a61af66fc99e Initial load
duke
parents:
diff changeset
1715 * initialized and thus are exempt from pre/post GC verification. Once
a61af66fc99e Initial load
duke
parents:
diff changeset
1716 * the field is set, the oops are considered fully initialized so make
a61af66fc99e Initial load
duke
parents:
diff changeset
1717 * sure that the oops can pass verification when this field is set.
a61af66fc99e Initial load
duke
parents:
diff changeset
1718 */
a61af66fc99e Initial load
duke
parents:
diff changeset
1719 m->set_exception_table(exception_handlers());
a61af66fc99e Initial load
duke
parents:
diff changeset
1720
a61af66fc99e Initial load
duke
parents:
diff changeset
1721 // Copy byte codes
1138
dd57230ba8fe 6893268: additional dynamic language related optimizations in C2
twisti
parents: 1108
diff changeset
1722 m->set_code(code_start);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1723
a61af66fc99e Initial load
duke
parents:
diff changeset
1724 // Copy line number table
a61af66fc99e Initial load
duke
parents:
diff changeset
1725 if (linenumber_table != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1726 memcpy(m->compressed_linenumber_table(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1727 linenumber_table->buffer(), linenumber_table_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
1728 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1729
a61af66fc99e Initial load
duke
parents:
diff changeset
1730 // Copy checked exceptions
a61af66fc99e Initial load
duke
parents:
diff changeset
1731 if (checked_exceptions_length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1732 int size = checked_exceptions_length * sizeof(CheckedExceptionElement) / sizeof(u2);
a61af66fc99e Initial load
duke
parents:
diff changeset
1733 copy_u2_with_conversion((u2*) m->checked_exceptions_start(), checked_exceptions_start, size);
a61af66fc99e Initial load
duke
parents:
diff changeset
1734 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1735
a61af66fc99e Initial load
duke
parents:
diff changeset
1736 /* Copy class file LVT's/LVTT's into the HotSpot internal LVT.
a61af66fc99e Initial load
duke
parents:
diff changeset
1737 *
a61af66fc99e Initial load
duke
parents:
diff changeset
1738 * Rules for LVT's and LVTT's are:
a61af66fc99e Initial load
duke
parents:
diff changeset
1739 * - There can be any number of LVT's and LVTT's.
a61af66fc99e Initial load
duke
parents:
diff changeset
1740 * - If there are n LVT's, it is the same as if there was just
a61af66fc99e Initial load
duke
parents:
diff changeset
1741 * one LVT containing all the entries from the n LVT's.
a61af66fc99e Initial load
duke
parents:
diff changeset
1742 * - There may be no more than one LVT entry per local variable.
a61af66fc99e Initial load
duke
parents:
diff changeset
1743 * Two LVT entries are 'equal' if these fields are the same:
a61af66fc99e Initial load
duke
parents:
diff changeset
1744 * start_pc, length, name, slot
a61af66fc99e Initial load
duke
parents:
diff changeset
1745 * - There may be no more than one LVTT entry per each LVT entry.
a61af66fc99e Initial load
duke
parents:
diff changeset
1746 * Each LVTT entry has to match some LVT entry.
a61af66fc99e Initial load
duke
parents:
diff changeset
1747 * - HotSpot internal LVT keeps natural ordering of class file LVT entries.
a61af66fc99e Initial load
duke
parents:
diff changeset
1748 */
a61af66fc99e Initial load
duke
parents:
diff changeset
1749 if (total_lvt_length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1750 int tbl_no, idx;
a61af66fc99e Initial load
duke
parents:
diff changeset
1751
a61af66fc99e Initial load
duke
parents:
diff changeset
1752 promoted_flags->set_has_localvariable_table();
a61af66fc99e Initial load
duke
parents:
diff changeset
1753
a61af66fc99e Initial load
duke
parents:
diff changeset
1754 LVT_Hash** lvt_Hash = NEW_RESOURCE_ARRAY(LVT_Hash*, HASH_ROW_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
1755 initialize_hashtable(lvt_Hash);
a61af66fc99e Initial load
duke
parents:
diff changeset
1756
a61af66fc99e Initial load
duke
parents:
diff changeset
1757 // To fill LocalVariableTable in
a61af66fc99e Initial load
duke
parents:
diff changeset
1758 Classfile_LVT_Element* cf_lvt;
a61af66fc99e Initial load
duke
parents:
diff changeset
1759 LocalVariableTableElement* lvt = m->localvariable_table_start();
a61af66fc99e Initial load
duke
parents:
diff changeset
1760
a61af66fc99e Initial load
duke
parents:
diff changeset
1761 for (tbl_no = 0; tbl_no < lvt_cnt; tbl_no++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1762 cf_lvt = (Classfile_LVT_Element *) localvariable_table_start[tbl_no];
a61af66fc99e Initial load
duke
parents:
diff changeset
1763 for (idx = 0; idx < localvariable_table_length[tbl_no]; idx++, lvt++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1764 copy_lvt_element(&cf_lvt[idx], lvt);
a61af66fc99e Initial load
duke
parents:
diff changeset
1765 // If no duplicates, add LVT elem in hashtable lvt_Hash.
a61af66fc99e Initial load
duke
parents:
diff changeset
1766 if (LVT_put_after_lookup(lvt, lvt_Hash) == false
a61af66fc99e Initial load
duke
parents:
diff changeset
1767 && _need_verify
a61af66fc99e Initial load
duke
parents:
diff changeset
1768 && _major_version >= JAVA_1_5_VERSION ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1769 clear_hashtable(lvt_Hash);
a61af66fc99e Initial load
duke
parents:
diff changeset
1770 classfile_parse_error("Duplicated LocalVariableTable attribute "
a61af66fc99e Initial load
duke
parents:
diff changeset
1771 "entry for '%s' in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1772 cp->symbol_at(lvt->name_cp_index)->as_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1773 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1774 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1775 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1776 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1777
a61af66fc99e Initial load
duke
parents:
diff changeset
1778 // To merge LocalVariableTable and LocalVariableTypeTable
a61af66fc99e Initial load
duke
parents:
diff changeset
1779 Classfile_LVT_Element* cf_lvtt;
a61af66fc99e Initial load
duke
parents:
diff changeset
1780 LocalVariableTableElement lvtt_elem;
a61af66fc99e Initial load
duke
parents:
diff changeset
1781
a61af66fc99e Initial load
duke
parents:
diff changeset
1782 for (tbl_no = 0; tbl_no < lvtt_cnt; tbl_no++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1783 cf_lvtt = (Classfile_LVT_Element *) localvariable_type_table_start[tbl_no];
a61af66fc99e Initial load
duke
parents:
diff changeset
1784 for (idx = 0; idx < localvariable_type_table_length[tbl_no]; idx++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1785 copy_lvt_element(&cf_lvtt[idx], &lvtt_elem);
a61af66fc99e Initial load
duke
parents:
diff changeset
1786 int index = hash(&lvtt_elem);
a61af66fc99e Initial load
duke
parents:
diff changeset
1787 LVT_Hash* entry = LVT_lookup(&lvtt_elem, index, lvt_Hash);
a61af66fc99e Initial load
duke
parents:
diff changeset
1788 if (entry == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1789 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1790 clear_hashtable(lvt_Hash);
a61af66fc99e Initial load
duke
parents:
diff changeset
1791 classfile_parse_error("LVTT entry for '%s' in class file %s "
a61af66fc99e Initial load
duke
parents:
diff changeset
1792 "does not match any LVT entry",
a61af66fc99e Initial load
duke
parents:
diff changeset
1793 cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1794 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1795 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1796 } else if (entry->_elem->signature_cp_index != 0 && _need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1797 clear_hashtable(lvt_Hash);
a61af66fc99e Initial load
duke
parents:
diff changeset
1798 classfile_parse_error("Duplicated LocalVariableTypeTable attribute "
a61af66fc99e Initial load
duke
parents:
diff changeset
1799 "entry for '%s' in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1800 cp->symbol_at(lvtt_elem.name_cp_index)->as_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1801 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1802 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1803 // to add generic signatures into LocalVariableTable
a61af66fc99e Initial load
duke
parents:
diff changeset
1804 entry->_elem->signature_cp_index = lvtt_elem.descriptor_cp_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
1805 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1806 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1807 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1808 clear_hashtable(lvt_Hash);
a61af66fc99e Initial load
duke
parents:
diff changeset
1809 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1810
a61af66fc99e Initial load
duke
parents:
diff changeset
1811 *method_annotations = assemble_annotations(runtime_visible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1812 runtime_visible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1813 runtime_invisible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1814 runtime_invisible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1815 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1816 *method_parameter_annotations = assemble_annotations(runtime_visible_parameter_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1817 runtime_visible_parameter_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1818 runtime_invisible_parameter_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1819 runtime_invisible_parameter_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1820 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1821 *method_default_annotations = assemble_annotations(annotation_default,
a61af66fc99e Initial load
duke
parents:
diff changeset
1822 annotation_default_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
1823 NULL,
a61af66fc99e Initial load
duke
parents:
diff changeset
1824 0,
a61af66fc99e Initial load
duke
parents:
diff changeset
1825 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1826
a61af66fc99e Initial load
duke
parents:
diff changeset
1827 if (name() == vmSymbols::finalize_method_name() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1828 signature() == vmSymbols::void_method_signature()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1829 if (m->is_empty_method()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1830 _has_empty_finalizer = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1831 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1832 _has_finalizer = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1833 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1834 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1835 if (name() == vmSymbols::object_initializer_name() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1836 signature() == vmSymbols::void_method_signature() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1837 m->is_vanilla_constructor()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1838 _has_vanilla_constructor = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1839 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1840
1507
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1366
diff changeset
1841 if (EnableMethodHandles && (m->is_method_handle_invoke() ||
cd5dbf694d45 6939134: JSR 292 adjustments to method handle invocation
jrose
parents: 1366
diff changeset
1842 m->is_method_handle_adapter())) {
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
1843 THROW_MSG_(vmSymbols::java_lang_VirtualMachineError(),
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
1844 "Method handle invokers must be defined internally to the VM", nullHandle);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
1845 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
1846
0
a61af66fc99e Initial load
duke
parents:
diff changeset
1847 return m;
a61af66fc99e Initial load
duke
parents:
diff changeset
1848 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1849
a61af66fc99e Initial load
duke
parents:
diff changeset
1850
a61af66fc99e Initial load
duke
parents:
diff changeset
1851 // The promoted_flags parameter is used to pass relevant access_flags
a61af66fc99e Initial load
duke
parents:
diff changeset
1852 // from the methods back up to the containing klass. These flag values
a61af66fc99e Initial load
duke
parents:
diff changeset
1853 // are added to klass's access_flags.
a61af66fc99e Initial load
duke
parents:
diff changeset
1854
a61af66fc99e Initial load
duke
parents:
diff changeset
1855 objArrayHandle ClassFileParser::parse_methods(constantPoolHandle cp, bool is_interface,
a61af66fc99e Initial load
duke
parents:
diff changeset
1856 AccessFlags* promoted_flags,
a61af66fc99e Initial load
duke
parents:
diff changeset
1857 bool* has_final_method,
a61af66fc99e Initial load
duke
parents:
diff changeset
1858 objArrayOop* methods_annotations_oop,
a61af66fc99e Initial load
duke
parents:
diff changeset
1859 objArrayOop* methods_parameter_annotations_oop,
a61af66fc99e Initial load
duke
parents:
diff changeset
1860 objArrayOop* methods_default_annotations_oop,
a61af66fc99e Initial load
duke
parents:
diff changeset
1861 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1862 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1863 objArrayHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
1864 typeArrayHandle method_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
1865 typeArrayHandle method_parameter_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
1866 typeArrayHandle method_default_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
1867 cfs->guarantee_more(2, CHECK_(nullHandle)); // length
a61af66fc99e Initial load
duke
parents:
diff changeset
1868 u2 length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1869 if (length == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1870 return objArrayHandle(THREAD, Universe::the_empty_system_obj_array());
a61af66fc99e Initial load
duke
parents:
diff changeset
1871 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1872 objArrayOop m = oopFactory::new_system_objArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1873 objArrayHandle methods(THREAD, m);
a61af66fc99e Initial load
duke
parents:
diff changeset
1874 HandleMark hm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1875 objArrayHandle methods_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
1876 objArrayHandle methods_parameter_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
1877 objArrayHandle methods_default_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
1878 for (int index = 0; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1879 methodHandle method = parse_method(cp, is_interface,
a61af66fc99e Initial load
duke
parents:
diff changeset
1880 promoted_flags,
a61af66fc99e Initial load
duke
parents:
diff changeset
1881 &method_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1882 &method_parameter_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1883 &method_default_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1884 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1885 if (method->is_final()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1886 *has_final_method = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1887 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1888 methods->obj_at_put(index, method());
a61af66fc99e Initial load
duke
parents:
diff changeset
1889 if (method_annotations.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1890 if (methods_annotations.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1891 objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1892 methods_annotations = objArrayHandle(THREAD, md);
a61af66fc99e Initial load
duke
parents:
diff changeset
1893 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1894 methods_annotations->obj_at_put(index, method_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
1895 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1896 if (method_parameter_annotations.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1897 if (methods_parameter_annotations.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1898 objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1899 methods_parameter_annotations = objArrayHandle(THREAD, md);
a61af66fc99e Initial load
duke
parents:
diff changeset
1900 }
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duke
parents:
diff changeset
1901 methods_parameter_annotations->obj_at_put(index, method_parameter_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
1902 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1903 if (method_default_annotations.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1904 if (methods_default_annotations.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1905 objArrayOop md = oopFactory::new_system_objArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1906 methods_default_annotations = objArrayHandle(THREAD, md);
a61af66fc99e Initial load
duke
parents:
diff changeset
1907 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1908 methods_default_annotations->obj_at_put(index, method_default_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
1909 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1910 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1911 if (_need_verify && length > 1) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1912 // Check duplicated methods
a61af66fc99e Initial load
duke
parents:
diff changeset
1913 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
1914 NameSigHash** names_and_sigs = NEW_RESOURCE_ARRAY_IN_THREAD(
a61af66fc99e Initial load
duke
parents:
diff changeset
1915 THREAD, NameSigHash*, HASH_ROW_SIZE);
a61af66fc99e Initial load
duke
parents:
diff changeset
1916 initialize_hashtable(names_and_sigs);
a61af66fc99e Initial load
duke
parents:
diff changeset
1917 bool dup = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
1918 {
a61af66fc99e Initial load
duke
parents:
diff changeset
1919 debug_only(No_Safepoint_Verifier nsv;)
a61af66fc99e Initial load
duke
parents:
diff changeset
1920 for (int i = 0; i < length; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1921 methodOop m = (methodOop)methods->obj_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
1922 // If no duplicates, add name/signature in hashtable names_and_sigs.
a61af66fc99e Initial load
duke
parents:
diff changeset
1923 if (!put_after_lookup(m->name(), m->signature(), names_and_sigs)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1924 dup = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
1925 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
1926 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1927 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1928 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1929 if (dup) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1930 classfile_parse_error("Duplicate method name&signature in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1931 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1932 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1933 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1934
a61af66fc99e Initial load
duke
parents:
diff changeset
1935 *methods_annotations_oop = methods_annotations();
a61af66fc99e Initial load
duke
parents:
diff changeset
1936 *methods_parameter_annotations_oop = methods_parameter_annotations();
a61af66fc99e Initial load
duke
parents:
diff changeset
1937 *methods_default_annotations_oop = methods_default_annotations();
a61af66fc99e Initial load
duke
parents:
diff changeset
1938
a61af66fc99e Initial load
duke
parents:
diff changeset
1939 return methods;
a61af66fc99e Initial load
duke
parents:
diff changeset
1940 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1941 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1942
a61af66fc99e Initial load
duke
parents:
diff changeset
1943
a61af66fc99e Initial load
duke
parents:
diff changeset
1944 typeArrayHandle ClassFileParser::sort_methods(objArrayHandle methods,
a61af66fc99e Initial load
duke
parents:
diff changeset
1945 objArrayHandle methods_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1946 objArrayHandle methods_parameter_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1947 objArrayHandle methods_default_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
1948 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1949 typeArrayHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
1950 int length = methods()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
1951 // If JVMTI original method ordering is enabled we have to
a61af66fc99e Initial load
duke
parents:
diff changeset
1952 // remember the original class file ordering.
a61af66fc99e Initial load
duke
parents:
diff changeset
1953 // We temporarily use the vtable_index field in the methodOop to store the
a61af66fc99e Initial load
duke
parents:
diff changeset
1954 // class file index, so we can read in after calling qsort.
a61af66fc99e Initial load
duke
parents:
diff changeset
1955 if (JvmtiExport::can_maintain_original_method_order()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1956 for (int index = 0; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1957 methodOop m = methodOop(methods->obj_at(index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1958 assert(!m->valid_vtable_index(), "vtable index should not be set");
a61af66fc99e Initial load
duke
parents:
diff changeset
1959 m->set_vtable_index(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1960 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1961 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1962 // Sort method array by ascending method name (for faster lookups & vtable construction)
a61af66fc99e Initial load
duke
parents:
diff changeset
1963 // Note that the ordering is not alphabetical, see symbolOopDesc::fast_compare
a61af66fc99e Initial load
duke
parents:
diff changeset
1964 methodOopDesc::sort_methods(methods(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1965 methods_annotations(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1966 methods_parameter_annotations(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1967 methods_default_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
1968
a61af66fc99e Initial load
duke
parents:
diff changeset
1969 // If JVMTI original method ordering is enabled construct int array remembering the original ordering
a61af66fc99e Initial load
duke
parents:
diff changeset
1970 if (JvmtiExport::can_maintain_original_method_order()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1971 typeArrayOop new_ordering = oopFactory::new_permanent_intArray(length, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
1972 typeArrayHandle method_ordering(THREAD, new_ordering);
a61af66fc99e Initial load
duke
parents:
diff changeset
1973 for (int index = 0; index < length; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1974 methodOop m = methodOop(methods->obj_at(index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1975 int old_index = m->vtable_index();
a61af66fc99e Initial load
duke
parents:
diff changeset
1976 assert(old_index >= 0 && old_index < length, "invalid method index");
a61af66fc99e Initial load
duke
parents:
diff changeset
1977 method_ordering->int_at_put(index, old_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1978 m->set_vtable_index(methodOopDesc::invalid_vtable_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
1979 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1980 return method_ordering;
a61af66fc99e Initial load
duke
parents:
diff changeset
1981 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
1982 return typeArrayHandle(THREAD, Universe::the_empty_int_array());
a61af66fc99e Initial load
duke
parents:
diff changeset
1983 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1984 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1985
a61af66fc99e Initial load
duke
parents:
diff changeset
1986
a61af66fc99e Initial load
duke
parents:
diff changeset
1987 void ClassFileParser::parse_classfile_sourcefile_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
1988 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
1989 cfs->guarantee_more(2, CHECK); // sourcefile_index
a61af66fc99e Initial load
duke
parents:
diff changeset
1990 u2 sourcefile_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
1991 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
1992 valid_cp_range(sourcefile_index, cp->length()) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
1993 cp->tag_at(sourcefile_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
1994 "Invalid SourceFile attribute at constant pool index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
1995 sourcefile_index, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
1996 k->set_source_file_name(cp->symbol_at(sourcefile_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
1997 }
a61af66fc99e Initial load
duke
parents:
diff changeset
1998
a61af66fc99e Initial load
duke
parents:
diff changeset
1999
a61af66fc99e Initial load
duke
parents:
diff changeset
2000
a61af66fc99e Initial load
duke
parents:
diff changeset
2001 void ClassFileParser::parse_classfile_source_debug_extension_attribute(constantPoolHandle cp,
a61af66fc99e Initial load
duke
parents:
diff changeset
2002 instanceKlassHandle k,
a61af66fc99e Initial load
duke
parents:
diff changeset
2003 int length, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2004 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
2005 u1* sde_buffer = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
2006 assert(sde_buffer != NULL, "null sde buffer");
a61af66fc99e Initial load
duke
parents:
diff changeset
2007
a61af66fc99e Initial load
duke
parents:
diff changeset
2008 // Don't bother storing it if there is no way to retrieve it
a61af66fc99e Initial load
duke
parents:
diff changeset
2009 if (JvmtiExport::can_get_source_debug_extension()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2010 // Optimistically assume that only 1 byte UTF format is used
a61af66fc99e Initial load
duke
parents:
diff changeset
2011 // (common case)
a61af66fc99e Initial load
duke
parents:
diff changeset
2012 symbolOop sde_symbol = oopFactory::new_symbol((char*)sde_buffer,
a61af66fc99e Initial load
duke
parents:
diff changeset
2013 length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2014 k->set_source_debug_extension(sde_symbol);
a61af66fc99e Initial load
duke
parents:
diff changeset
2015 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2016 // Got utf8 string, set stream position forward
a61af66fc99e Initial load
duke
parents:
diff changeset
2017 cfs->skip_u1(length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2018 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2019
a61af66fc99e Initial load
duke
parents:
diff changeset
2020
a61af66fc99e Initial load
duke
parents:
diff changeset
2021 // Inner classes can be static, private or protected (classic VM does this)
a61af66fc99e Initial load
duke
parents:
diff changeset
2022 #define RECOGNIZED_INNER_CLASS_MODIFIERS (JVM_RECOGNIZED_CLASS_MODIFIERS | JVM_ACC_PRIVATE | JVM_ACC_PROTECTED | JVM_ACC_STATIC)
a61af66fc99e Initial load
duke
parents:
diff changeset
2023
a61af66fc99e Initial load
duke
parents:
diff changeset
2024 // Return number of classes in the inner classes attribute table
a61af66fc99e Initial load
duke
parents:
diff changeset
2025 u2 ClassFileParser::parse_classfile_inner_classes_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2026 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
2027 cfs->guarantee_more(2, CHECK_0); // length
a61af66fc99e Initial load
duke
parents:
diff changeset
2028 u2 length = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2029
a61af66fc99e Initial load
duke
parents:
diff changeset
2030 // 4-tuples of shorts [inner_class_info_index, outer_class_info_index, inner_name_index, inner_class_access_flags]
a61af66fc99e Initial load
duke
parents:
diff changeset
2031 typeArrayOop ic = oopFactory::new_permanent_shortArray(length*4, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2032 typeArrayHandle inner_classes(THREAD, ic);
a61af66fc99e Initial load
duke
parents:
diff changeset
2033 int index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2034 int cp_size = cp->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
2035 cfs->guarantee_more(8 * length, CHECK_0); // 4-tuples of u2
a61af66fc99e Initial load
duke
parents:
diff changeset
2036 for (int n = 0; n < length; n++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2037 // Inner class index
a61af66fc99e Initial load
duke
parents:
diff changeset
2038 u2 inner_class_info_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2039 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
2040 inner_class_info_index == 0 ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2041 (valid_cp_range(inner_class_info_index, cp_size) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2042 is_klass_reference(cp, inner_class_info_index)),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2043 "inner_class_info_index %u has bad constant type in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2044 inner_class_info_index, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2045 // Outer class index
a61af66fc99e Initial load
duke
parents:
diff changeset
2046 u2 outer_class_info_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2047 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
2048 outer_class_info_index == 0 ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2049 (valid_cp_range(outer_class_info_index, cp_size) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2050 is_klass_reference(cp, outer_class_info_index)),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2051 "outer_class_info_index %u has bad constant type in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2052 outer_class_info_index, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2053 // Inner class name
a61af66fc99e Initial load
duke
parents:
diff changeset
2054 u2 inner_name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2055 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
2056 inner_name_index == 0 || (valid_cp_range(inner_name_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2057 cp->tag_at(inner_name_index).is_utf8()),
a61af66fc99e Initial load
duke
parents:
diff changeset
2058 "inner_name_index %u has bad constant type in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2059 inner_name_index, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2060 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2061 guarantee_property(inner_class_info_index != outer_class_info_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
2062 "Class is both outer and inner class in class file %s", CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2063 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2064 // Access flags
a61af66fc99e Initial load
duke
parents:
diff changeset
2065 AccessFlags inner_access_flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
2066 jint flags = cfs->get_u2_fast() & RECOGNIZED_INNER_CLASS_MODIFIERS;
a61af66fc99e Initial load
duke
parents:
diff changeset
2067 if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2068 // Set abstract bit for old class files for backward compatibility
a61af66fc99e Initial load
duke
parents:
diff changeset
2069 flags |= JVM_ACC_ABSTRACT;
a61af66fc99e Initial load
duke
parents:
diff changeset
2070 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2071 verify_legal_class_modifiers(flags, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2072 inner_access_flags.set_flags(flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
2073
a61af66fc99e Initial load
duke
parents:
diff changeset
2074 inner_classes->short_at_put(index++, inner_class_info_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2075 inner_classes->short_at_put(index++, outer_class_info_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2076 inner_classes->short_at_put(index++, inner_name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2077 inner_classes->short_at_put(index++, inner_access_flags.as_short());
a61af66fc99e Initial load
duke
parents:
diff changeset
2078 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2079
a61af66fc99e Initial load
duke
parents:
diff changeset
2080 // 4347400: make sure there's no duplicate entry in the classes array
a61af66fc99e Initial load
duke
parents:
diff changeset
2081 if (_need_verify && _major_version >= JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2082 for(int i = 0; i < inner_classes->length(); i += 4) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2083 for(int j = i + 4; j < inner_classes->length(); j += 4) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2084 guarantee_property((inner_classes->ushort_at(i) != inner_classes->ushort_at(j) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2085 inner_classes->ushort_at(i+1) != inner_classes->ushort_at(j+1) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2086 inner_classes->ushort_at(i+2) != inner_classes->ushort_at(j+2) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2087 inner_classes->ushort_at(i+3) != inner_classes->ushort_at(j+3)),
a61af66fc99e Initial load
duke
parents:
diff changeset
2088 "Duplicate entry in InnerClasses in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2089 CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2090 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2091 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2092 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2093
a61af66fc99e Initial load
duke
parents:
diff changeset
2094 // Update instanceKlass with inner class info.
a61af66fc99e Initial load
duke
parents:
diff changeset
2095 k->set_inner_classes(inner_classes());
a61af66fc99e Initial load
duke
parents:
diff changeset
2096 return length;
a61af66fc99e Initial load
duke
parents:
diff changeset
2097 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2098
a61af66fc99e Initial load
duke
parents:
diff changeset
2099 void ClassFileParser::parse_classfile_synthetic_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2100 k->set_is_synthetic();
a61af66fc99e Initial load
duke
parents:
diff changeset
2101 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2102
a61af66fc99e Initial load
duke
parents:
diff changeset
2103 void ClassFileParser::parse_classfile_signature_attribute(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2104 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
2105 u2 signature_index = cfs->get_u2(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2106 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
2107 valid_cp_range(signature_index, cp->length()) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2108 cp->tag_at(signature_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2109 "Invalid constant pool index %u in Signature attribute in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2110 signature_index, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2111 k->set_generic_signature(cp->symbol_at(signature_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
2112 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2113
a61af66fc99e Initial load
duke
parents:
diff changeset
2114 void ClassFileParser::parse_classfile_attributes(constantPoolHandle cp, instanceKlassHandle k, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2115 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
2116 // Set inner classes attribute to default sentinel
a61af66fc99e Initial load
duke
parents:
diff changeset
2117 k->set_inner_classes(Universe::the_empty_short_array());
a61af66fc99e Initial load
duke
parents:
diff changeset
2118 cfs->guarantee_more(2, CHECK); // attributes_count
a61af66fc99e Initial load
duke
parents:
diff changeset
2119 u2 attributes_count = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2120 bool parsed_sourcefile_attribute = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2121 bool parsed_innerclasses_attribute = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2122 bool parsed_enclosingmethod_attribute = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2123 u1* runtime_visible_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2124 int runtime_visible_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2125 u1* runtime_invisible_annotations = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2126 int runtime_invisible_annotations_length = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2127 // Iterate over attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
2128 while (attributes_count--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2129 cfs->guarantee_more(6, CHECK); // attribute_name_index, attribute_length
a61af66fc99e Initial load
duke
parents:
diff changeset
2130 u2 attribute_name_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2131 u4 attribute_length = cfs->get_u4_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2132 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
2133 valid_cp_range(attribute_name_index, cp->length()) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2134 cp->tag_at(attribute_name_index).is_utf8(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2135 "Attribute name has bad constant pool index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2136 attribute_name_index, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2137 symbolOop tag = cp->symbol_at(attribute_name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2138 if (tag == vmSymbols::tag_source_file()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2139 // Check for SourceFile tag
a61af66fc99e Initial load
duke
parents:
diff changeset
2140 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2141 guarantee_property(attribute_length == 2, "Wrong SourceFile attribute length in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2142 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2143 if (parsed_sourcefile_attribute) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2144 classfile_parse_error("Multiple SourceFile attributes in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2145 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2146 parsed_sourcefile_attribute = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2147 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2148 parse_classfile_sourcefile_attribute(cp, k, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2149 } else if (tag == vmSymbols::tag_source_debug_extension()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2150 // Check for SourceDebugExtension tag
a61af66fc99e Initial load
duke
parents:
diff changeset
2151 parse_classfile_source_debug_extension_attribute(cp, k, (int)attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2152 } else if (tag == vmSymbols::tag_inner_classes()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2153 // Check for InnerClasses tag
a61af66fc99e Initial load
duke
parents:
diff changeset
2154 if (parsed_innerclasses_attribute) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2155 classfile_parse_error("Multiple InnerClasses attributes in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2156 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2157 parsed_innerclasses_attribute = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2158 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2159 u2 num_of_classes = parse_classfile_inner_classes_attribute(cp, k, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2160 if (_need_verify && _major_version >= JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2161 guarantee_property(attribute_length == sizeof(num_of_classes) + 4 * sizeof(u2) * num_of_classes,
a61af66fc99e Initial load
duke
parents:
diff changeset
2162 "Wrong InnerClasses attribute length in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2163 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2164 } else if (tag == vmSymbols::tag_synthetic()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2165 // Check for Synthetic tag
a61af66fc99e Initial load
duke
parents:
diff changeset
2166 // Shouldn't we check that the synthetic flags wasn't already set? - not required in spec
a61af66fc99e Initial load
duke
parents:
diff changeset
2167 if (attribute_length != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2168 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
2169 "Invalid Synthetic classfile attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2170 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2171 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2172 parse_classfile_synthetic_attribute(cp, k, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2173 } else if (tag == vmSymbols::tag_deprecated()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2174 // Check for Deprecatd tag - 4276120
a61af66fc99e Initial load
duke
parents:
diff changeset
2175 if (attribute_length != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2176 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
2177 "Invalid Deprecated classfile attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2178 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2179 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2180 } else if (_major_version >= JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2181 if (tag == vmSymbols::tag_signature()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2182 if (attribute_length != 2) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2183 classfile_parse_error(
a61af66fc99e Initial load
duke
parents:
diff changeset
2184 "Wrong Signature attribute length %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2185 attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2186 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2187 parse_classfile_signature_attribute(cp, k, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2188 } else if (tag == vmSymbols::tag_runtime_visible_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2189 runtime_visible_annotations_length = attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
2190 runtime_visible_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
2191 assert(runtime_visible_annotations != NULL, "null visible annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
2192 cfs->skip_u1(runtime_visible_annotations_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2193 } else if (PreserveAllAnnotations && tag == vmSymbols::tag_runtime_invisible_annotations()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2194 runtime_invisible_annotations_length = attribute_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
2195 runtime_invisible_annotations = cfs->get_u1_buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
2196 assert(runtime_invisible_annotations != NULL, "null invisible annotations");
a61af66fc99e Initial load
duke
parents:
diff changeset
2197 cfs->skip_u1(runtime_invisible_annotations_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2198 } else if (tag == vmSymbols::tag_enclosing_method()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2199 if (parsed_enclosingmethod_attribute) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2200 classfile_parse_error("Multiple EnclosingMethod attributes in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2201 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2202 parsed_enclosingmethod_attribute = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
2203 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2204 cfs->guarantee_more(4, CHECK); // class_index, method_index
a61af66fc99e Initial load
duke
parents:
diff changeset
2205 u2 class_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2206 u2 method_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2207 if (class_index == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2208 classfile_parse_error("Invalid class index in EnclosingMethod attribute in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2209 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2210 // Validate the constant pool indices and types
a61af66fc99e Initial load
duke
parents:
diff changeset
2211 if (!cp->is_within_bounds(class_index) ||
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2212 !is_klass_reference(cp, class_index)) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2213 classfile_parse_error("Invalid or out-of-bounds class index in EnclosingMethod attribute in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2214 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2215 if (method_index != 0 &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2216 (!cp->is_within_bounds(method_index) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2217 !cp->tag_at(method_index).is_name_and_type())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2218 classfile_parse_error("Invalid or out-of-bounds method index in EnclosingMethod attribute in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2219 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2220 k->set_enclosing_method_indices(class_index, method_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2221 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2222 // Unknown attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
2223 cfs->skip_u1(attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2224 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2225 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2226 // Unknown attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
2227 cfs->skip_u1(attribute_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2228 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2229 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2230 typeArrayHandle annotations = assemble_annotations(runtime_visible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2231 runtime_visible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
2232 runtime_invisible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2233 runtime_invisible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
2234 CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2235 k->set_class_annotations(annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
2236 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2237
a61af66fc99e Initial load
duke
parents:
diff changeset
2238
a61af66fc99e Initial load
duke
parents:
diff changeset
2239 typeArrayHandle ClassFileParser::assemble_annotations(u1* runtime_visible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2240 int runtime_visible_annotations_length,
a61af66fc99e Initial load
duke
parents:
diff changeset
2241 u1* runtime_invisible_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2242 int runtime_invisible_annotations_length, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2243 typeArrayHandle annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
2244 if (runtime_visible_annotations != NULL ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2245 runtime_invisible_annotations != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2246 typeArrayOop anno = oopFactory::new_permanent_byteArray(runtime_visible_annotations_length +
a61af66fc99e Initial load
duke
parents:
diff changeset
2247 runtime_invisible_annotations_length, CHECK_(annotations));
a61af66fc99e Initial load
duke
parents:
diff changeset
2248 annotations = typeArrayHandle(THREAD, anno);
a61af66fc99e Initial load
duke
parents:
diff changeset
2249 if (runtime_visible_annotations != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2250 memcpy(annotations->byte_at_addr(0), runtime_visible_annotations, runtime_visible_annotations_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
2251 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2252 if (runtime_invisible_annotations != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2253 memcpy(annotations->byte_at_addr(runtime_visible_annotations_length), runtime_invisible_annotations, runtime_invisible_annotations_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
2254 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2255 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2256 return annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
2257 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2258
a61af66fc99e Initial load
duke
parents:
diff changeset
2259
a61af66fc99e Initial load
duke
parents:
diff changeset
2260 static void initialize_static_field(fieldDescriptor* fd, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2261 KlassHandle h_k (THREAD, fd->field_holder());
a61af66fc99e Initial load
duke
parents:
diff changeset
2262 assert(h_k.not_null() && fd->is_static(), "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
2263 if (fd->has_initial_value()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2264 BasicType t = fd->field_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
2265 switch (t) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2266 case T_BYTE:
a61af66fc99e Initial load
duke
parents:
diff changeset
2267 h_k()->byte_field_put(fd->offset(), fd->int_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2268 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2269 case T_BOOLEAN:
a61af66fc99e Initial load
duke
parents:
diff changeset
2270 h_k()->bool_field_put(fd->offset(), fd->int_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2271 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2272 case T_CHAR:
a61af66fc99e Initial load
duke
parents:
diff changeset
2273 h_k()->char_field_put(fd->offset(), fd->int_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2274 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2275 case T_SHORT:
a61af66fc99e Initial load
duke
parents:
diff changeset
2276 h_k()->short_field_put(fd->offset(), fd->int_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2277 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2278 case T_INT:
a61af66fc99e Initial load
duke
parents:
diff changeset
2279 h_k()->int_field_put(fd->offset(), fd->int_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2280 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2281 case T_FLOAT:
a61af66fc99e Initial load
duke
parents:
diff changeset
2282 h_k()->float_field_put(fd->offset(), fd->float_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2283 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2284 case T_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
2285 h_k()->double_field_put(fd->offset(), fd->double_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2286 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2287 case T_LONG:
a61af66fc99e Initial load
duke
parents:
diff changeset
2288 h_k()->long_field_put(fd->offset(), fd->long_initial_value());
a61af66fc99e Initial load
duke
parents:
diff changeset
2289 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2290 case T_OBJECT:
a61af66fc99e Initial load
duke
parents:
diff changeset
2291 {
a61af66fc99e Initial load
duke
parents:
diff changeset
2292 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
2293 symbolOop sym = oopFactory::new_symbol("Ljava/lang/String;", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2294 assert(fd->signature() == sym, "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
2295 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2296 oop string = fd->string_initial_value(CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2297 h_k()->obj_field_put(fd->offset(), string);
a61af66fc99e Initial load
duke
parents:
diff changeset
2298 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2299 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2300 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
2301 THROW_MSG(vmSymbols::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2302 "Illegal ConstantValue attribute in class file");
a61af66fc99e Initial load
duke
parents:
diff changeset
2303 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2304 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2305 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2306
a61af66fc99e Initial load
duke
parents:
diff changeset
2307
a61af66fc99e Initial load
duke
parents:
diff changeset
2308 void ClassFileParser::java_lang_ref_Reference_fix_pre(typeArrayHandle* fields_ptr,
a61af66fc99e Initial load
duke
parents:
diff changeset
2309 constantPoolHandle cp, FieldAllocationCount *fac_ptr, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2310 // This code is for compatibility with earlier jdk's that do not
a61af66fc99e Initial load
duke
parents:
diff changeset
2311 // have the "discovered" field in java.lang.ref.Reference. For 1.5
a61af66fc99e Initial load
duke
parents:
diff changeset
2312 // the check for the "discovered" field should issue a warning if
a61af66fc99e Initial load
duke
parents:
diff changeset
2313 // the field is not found. For 1.6 this code should be issue a
a61af66fc99e Initial load
duke
parents:
diff changeset
2314 // fatal error if the "discovered" field is not found.
a61af66fc99e Initial load
duke
parents:
diff changeset
2315 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2316 // Increment fac.nonstatic_oop_count so that the start of the
a61af66fc99e Initial load
duke
parents:
diff changeset
2317 // next type of non-static oops leaves room for the fake oop.
a61af66fc99e Initial load
duke
parents:
diff changeset
2318 // Do not increment next_nonstatic_oop_offset so that the
a61af66fc99e Initial load
duke
parents:
diff changeset
2319 // fake oop is place after the java.lang.ref.Reference oop
a61af66fc99e Initial load
duke
parents:
diff changeset
2320 // fields.
a61af66fc99e Initial load
duke
parents:
diff changeset
2321 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2322 // Check the fields in java.lang.ref.Reference for the "discovered"
a61af66fc99e Initial load
duke
parents:
diff changeset
2323 // field. If it is not present, artifically create a field for it.
a61af66fc99e Initial load
duke
parents:
diff changeset
2324 // This allows this VM to run on early JDK where the field is not
a61af66fc99e Initial load
duke
parents:
diff changeset
2325 // present.
a61af66fc99e Initial load
duke
parents:
diff changeset
2326
a61af66fc99e Initial load
duke
parents:
diff changeset
2327 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2328 // Increment fac.nonstatic_oop_count so that the start of the
a61af66fc99e Initial load
duke
parents:
diff changeset
2329 // next type of non-static oops leaves room for the fake oop.
a61af66fc99e Initial load
duke
parents:
diff changeset
2330 // Do not increment next_nonstatic_oop_offset so that the
a61af66fc99e Initial load
duke
parents:
diff changeset
2331 // fake oop is place after the java.lang.ref.Reference oop
a61af66fc99e Initial load
duke
parents:
diff changeset
2332 // fields.
a61af66fc99e Initial load
duke
parents:
diff changeset
2333 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2334 // Check the fields in java.lang.ref.Reference for the "discovered"
a61af66fc99e Initial load
duke
parents:
diff changeset
2335 // field. If it is not present, artifically create a field for it.
a61af66fc99e Initial load
duke
parents:
diff changeset
2336 // This allows this VM to run on early JDK where the field is not
a61af66fc99e Initial load
duke
parents:
diff changeset
2337 // present.
a61af66fc99e Initial load
duke
parents:
diff changeset
2338 int reference_sig_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2339 int reference_name_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2340 int reference_index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2341 int extra = java_lang_ref_Reference::number_of_fake_oop_fields;
a61af66fc99e Initial load
duke
parents:
diff changeset
2342 const int n = (*fields_ptr)()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
2343 for (int i = 0; i < n; i += instanceKlass::next_offset ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2344 int name_index =
a61af66fc99e Initial load
duke
parents:
diff changeset
2345 (*fields_ptr)()->ushort_at(i + instanceKlass::name_index_offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
2346 int sig_index =
a61af66fc99e Initial load
duke
parents:
diff changeset
2347 (*fields_ptr)()->ushort_at(i + instanceKlass::signature_index_offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
2348 symbolOop f_name = cp->symbol_at(name_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2349 symbolOop f_sig = cp->symbol_at(sig_index);
a61af66fc99e Initial load
duke
parents:
diff changeset
2350 if (f_sig == vmSymbols::reference_signature() && reference_index == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2351 // Save the index for reference signature for later use.
a61af66fc99e Initial load
duke
parents:
diff changeset
2352 // The fake discovered field does not entries in the
a61af66fc99e Initial load
duke
parents:
diff changeset
2353 // constant pool so the index for its signature cannot
a61af66fc99e Initial load
duke
parents:
diff changeset
2354 // be extracted from the constant pool. It will need
a61af66fc99e Initial load
duke
parents:
diff changeset
2355 // later, however. It's signature is vmSymbols::reference_signature()
a61af66fc99e Initial load
duke
parents:
diff changeset
2356 // so same an index for that signature.
a61af66fc99e Initial load
duke
parents:
diff changeset
2357 reference_sig_index = sig_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
2358 reference_name_index = name_index;
a61af66fc99e Initial load
duke
parents:
diff changeset
2359 reference_index = i;
a61af66fc99e Initial load
duke
parents:
diff changeset
2360 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2361 if (f_name == vmSymbols::reference_discovered_name() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2362 f_sig == vmSymbols::reference_signature()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2363 // The values below are fake but will force extra
a61af66fc99e Initial load
duke
parents:
diff changeset
2364 // non-static oop fields and a corresponding non-static
a61af66fc99e Initial load
duke
parents:
diff changeset
2365 // oop map block to be allocated.
a61af66fc99e Initial load
duke
parents:
diff changeset
2366 extra = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2367 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
2368 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2369 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2370 if (extra != 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2371 fac_ptr->nonstatic_oop_count += extra;
a61af66fc99e Initial load
duke
parents:
diff changeset
2372 // Add the additional entry to "fields" so that the klass
a61af66fc99e Initial load
duke
parents:
diff changeset
2373 // contains the "discoverd" field and the field will be initialized
a61af66fc99e Initial load
duke
parents:
diff changeset
2374 // in instances of the object.
a61af66fc99e Initial load
duke
parents:
diff changeset
2375 int fields_with_fix_length = (*fields_ptr)()->length() +
a61af66fc99e Initial load
duke
parents:
diff changeset
2376 instanceKlass::next_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2377 typeArrayOop ff = oopFactory::new_permanent_shortArray(
a61af66fc99e Initial load
duke
parents:
diff changeset
2378 fields_with_fix_length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
2379 typeArrayHandle fields_with_fix(THREAD, ff);
a61af66fc99e Initial load
duke
parents:
diff changeset
2380
a61af66fc99e Initial load
duke
parents:
diff changeset
2381 // Take everything from the original but the length.
a61af66fc99e Initial load
duke
parents:
diff changeset
2382 for (int idx = 0; idx < (*fields_ptr)->length(); idx++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2383 fields_with_fix->ushort_at_put(idx, (*fields_ptr)->ushort_at(idx));
a61af66fc99e Initial load
duke
parents:
diff changeset
2384 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2385
a61af66fc99e Initial load
duke
parents:
diff changeset
2386 // Add the fake field at the end.
a61af66fc99e Initial load
duke
parents:
diff changeset
2387 int i = (*fields_ptr)->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
2388 // There is no name index for the fake "discovered" field nor
a61af66fc99e Initial load
duke
parents:
diff changeset
2389 // signature but a signature is needed so that the field will
a61af66fc99e Initial load
duke
parents:
diff changeset
2390 // be properly initialized. Use one found for
a61af66fc99e Initial load
duke
parents:
diff changeset
2391 // one of the other reference fields. Be sure the index for the
a61af66fc99e Initial load
duke
parents:
diff changeset
2392 // name is 0. In fieldDescriptor::initialize() the index of the
a61af66fc99e Initial load
duke
parents:
diff changeset
2393 // name is checked. That check is by passed for the last nonstatic
a61af66fc99e Initial load
duke
parents:
diff changeset
2394 // oop field in a java.lang.ref.Reference which is assumed to be
a61af66fc99e Initial load
duke
parents:
diff changeset
2395 // this artificial "discovered" field. An assertion checks that
a61af66fc99e Initial load
duke
parents:
diff changeset
2396 // the name index is 0.
a61af66fc99e Initial load
duke
parents:
diff changeset
2397 assert(reference_index != 0, "Missing signature for reference");
a61af66fc99e Initial load
duke
parents:
diff changeset
2398
a61af66fc99e Initial load
duke
parents:
diff changeset
2399 int j;
a61af66fc99e Initial load
duke
parents:
diff changeset
2400 for (j = 0; j < instanceKlass::next_offset; j++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2401 fields_with_fix->ushort_at_put(i + j,
a61af66fc99e Initial load
duke
parents:
diff changeset
2402 (*fields_ptr)->ushort_at(reference_index +j));
a61af66fc99e Initial load
duke
parents:
diff changeset
2403 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2404 // Clear the public access flag and set the private access flag.
a61af66fc99e Initial load
duke
parents:
diff changeset
2405 short flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
2406 flags =
a61af66fc99e Initial load
duke
parents:
diff changeset
2407 fields_with_fix->ushort_at(i + instanceKlass::access_flags_offset);
a61af66fc99e Initial load
duke
parents:
diff changeset
2408 assert(!(flags & JVM_RECOGNIZED_FIELD_MODIFIERS), "Unexpected access flags set");
a61af66fc99e Initial load
duke
parents:
diff changeset
2409 flags = flags & (~JVM_ACC_PUBLIC);
a61af66fc99e Initial load
duke
parents:
diff changeset
2410 flags = flags | JVM_ACC_PRIVATE;
a61af66fc99e Initial load
duke
parents:
diff changeset
2411 AccessFlags access_flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
2412 access_flags.set_flags(flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
2413 assert(!access_flags.is_public(), "Failed to clear public flag");
a61af66fc99e Initial load
duke
parents:
diff changeset
2414 assert(access_flags.is_private(), "Failed to set private flag");
a61af66fc99e Initial load
duke
parents:
diff changeset
2415 fields_with_fix->ushort_at_put(i + instanceKlass::access_flags_offset,
a61af66fc99e Initial load
duke
parents:
diff changeset
2416 flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
2417
a61af66fc99e Initial load
duke
parents:
diff changeset
2418 assert(fields_with_fix->ushort_at(i + instanceKlass::name_index_offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2419 == reference_name_index, "The fake reference name is incorrect");
a61af66fc99e Initial load
duke
parents:
diff changeset
2420 assert(fields_with_fix->ushort_at(i + instanceKlass::signature_index_offset)
a61af66fc99e Initial load
duke
parents:
diff changeset
2421 == reference_sig_index, "The fake reference signature is incorrect");
a61af66fc99e Initial load
duke
parents:
diff changeset
2422 // The type of the field is stored in the low_offset entry during
a61af66fc99e Initial load
duke
parents:
diff changeset
2423 // parsing.
a61af66fc99e Initial load
duke
parents:
diff changeset
2424 assert(fields_with_fix->ushort_at(i + instanceKlass::low_offset) ==
a61af66fc99e Initial load
duke
parents:
diff changeset
2425 NONSTATIC_OOP, "The fake reference type is incorrect");
a61af66fc99e Initial load
duke
parents:
diff changeset
2426
a61af66fc99e Initial load
duke
parents:
diff changeset
2427 // "fields" is allocated in the permanent generation. Disgard
a61af66fc99e Initial load
duke
parents:
diff changeset
2428 // it and let it be collected.
a61af66fc99e Initial load
duke
parents:
diff changeset
2429 (*fields_ptr) = fields_with_fix;
a61af66fc99e Initial load
duke
parents:
diff changeset
2430 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2431 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
2432 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2433
a61af66fc99e Initial load
duke
parents:
diff changeset
2434
a61af66fc99e Initial load
duke
parents:
diff changeset
2435 void ClassFileParser::java_lang_Class_fix_pre(objArrayHandle* methods_ptr,
a61af66fc99e Initial load
duke
parents:
diff changeset
2436 FieldAllocationCount *fac_ptr, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2437 // Add fake fields for java.lang.Class instances
a61af66fc99e Initial load
duke
parents:
diff changeset
2438 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2439 // This is not particularly nice. We should consider adding a
a61af66fc99e Initial load
duke
parents:
diff changeset
2440 // private transient object field at the Java level to
a61af66fc99e Initial load
duke
parents:
diff changeset
2441 // java.lang.Class. Alternatively we could add a subclass of
a61af66fc99e Initial load
duke
parents:
diff changeset
2442 // instanceKlass which provides an accessor and size computer for
a61af66fc99e Initial load
duke
parents:
diff changeset
2443 // this field, but that appears to be more code than this hack.
a61af66fc99e Initial load
duke
parents:
diff changeset
2444 //
a61af66fc99e Initial load
duke
parents:
diff changeset
2445 // NOTE that we wedge these in at the beginning rather than the
a61af66fc99e Initial load
duke
parents:
diff changeset
2446 // end of the object because the Class layout changed between JDK
a61af66fc99e Initial load
duke
parents:
diff changeset
2447 // 1.3 and JDK 1.4 with the new reflection implementation; some
a61af66fc99e Initial load
duke
parents:
diff changeset
2448 // nonstatic oop fields were added at the Java level. The offsets
a61af66fc99e Initial load
duke
parents:
diff changeset
2449 // of these fake fields can't change between these two JDK
a61af66fc99e Initial load
duke
parents:
diff changeset
2450 // versions because when the offsets are computed at bootstrap
a61af66fc99e Initial load
duke
parents:
diff changeset
2451 // time we don't know yet which version of the JDK we're running in.
a61af66fc99e Initial load
duke
parents:
diff changeset
2452
a61af66fc99e Initial load
duke
parents:
diff changeset
2453 // The values below are fake but will force two non-static oop fields and
a61af66fc99e Initial load
duke
parents:
diff changeset
2454 // a corresponding non-static oop map block to be allocated.
a61af66fc99e Initial load
duke
parents:
diff changeset
2455 const int extra = java_lang_Class::number_of_fake_oop_fields;
a61af66fc99e Initial load
duke
parents:
diff changeset
2456 fac_ptr->nonstatic_oop_count += extra;
a61af66fc99e Initial load
duke
parents:
diff changeset
2457 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2458
a61af66fc99e Initial load
duke
parents:
diff changeset
2459
a61af66fc99e Initial load
duke
parents:
diff changeset
2460 void ClassFileParser::java_lang_Class_fix_post(int* next_nonstatic_oop_offset_ptr) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2461 // Cause the extra fake fields in java.lang.Class to show up before
a61af66fc99e Initial load
duke
parents:
diff changeset
2462 // the Java fields for layout compatibility between 1.3 and 1.4
a61af66fc99e Initial load
duke
parents:
diff changeset
2463 // Incrementing next_nonstatic_oop_offset here advances the
a61af66fc99e Initial load
duke
parents:
diff changeset
2464 // location where the real java fields are placed.
a61af66fc99e Initial load
duke
parents:
diff changeset
2465 const int extra = java_lang_Class::number_of_fake_oop_fields;
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2466 (*next_nonstatic_oop_offset_ptr) += (extra * heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2467 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2468
a61af66fc99e Initial load
duke
parents:
diff changeset
2469
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2470 // Force MethodHandle.vmentry to be an unmanaged pointer.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2471 // There is no way for a classfile to express this, so we must help it.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2472 void ClassFileParser::java_dyn_MethodHandle_fix_pre(constantPoolHandle cp,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2473 typeArrayHandle* fields_ptr,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2474 FieldAllocationCount *fac_ptr,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2475 TRAPS) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2476 // Add fake fields for java.dyn.MethodHandle instances
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2477 //
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2478 // This is not particularly nice, but since there is no way to express
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2479 // a native wordSize field in Java, we must do it at this level.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2480
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2481 if (!EnableMethodHandles) return;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2482
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2483 int word_sig_index = 0;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2484 const int cp_size = cp->length();
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2485 for (int index = 1; index < cp_size; index++) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2486 if (cp->tag_at(index).is_utf8() &&
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2487 cp->symbol_at(index) == vmSymbols::machine_word_signature()) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2488 word_sig_index = index;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2489 break;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2490 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2491 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2492
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2493 if (word_sig_index == 0)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2494 THROW_MSG(vmSymbols::java_lang_VirtualMachineError(),
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2495 "missing I or J signature (for vmentry) in java.dyn.MethodHandle");
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2496
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2497 bool found_vmentry = false;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2498
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2499 const int n = (*fields_ptr)()->length();
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2500 for (int i = 0; i < n; i += instanceKlass::next_offset) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2501 int name_index = (*fields_ptr)->ushort_at(i + instanceKlass::name_index_offset);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2502 int sig_index = (*fields_ptr)->ushort_at(i + instanceKlass::signature_index_offset);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2503 int acc_flags = (*fields_ptr)->ushort_at(i + instanceKlass::access_flags_offset);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2504 symbolOop f_name = cp->symbol_at(name_index);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2505 symbolOop f_sig = cp->symbol_at(sig_index);
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2506 if (f_sig == vmSymbols::byte_signature() &&
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2507 f_name == vmSymbols::vmentry_name() &&
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2508 (acc_flags & JVM_ACC_STATIC) == 0) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2509 // Adjust the field type from byte to an unmanaged pointer.
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2510 assert(fac_ptr->nonstatic_byte_count > 0, "");
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2511 fac_ptr->nonstatic_byte_count -= 1;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2512 (*fields_ptr)->ushort_at_put(i + instanceKlass::signature_index_offset,
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2513 word_sig_index);
1108
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
2514 fac_ptr->nonstatic_word_count += 1;
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
2515
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
2516 FieldAllocationType atype = (FieldAllocationType) (*fields_ptr)->ushort_at(i + instanceKlass::low_offset);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2517 assert(atype == NONSTATIC_BYTE, "");
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2518 FieldAllocationType new_atype = NONSTATIC_WORD;
1108
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
2519 (*fields_ptr)->ushort_at_put(i + instanceKlass::low_offset, new_atype);
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2520
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2521 found_vmentry = true;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2522 break;
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2523 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2524 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2525
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2526 if (!found_vmentry)
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2527 THROW_MSG(vmSymbols::java_lang_VirtualMachineError(),
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2528 "missing vmentry byte field in java.dyn.MethodHandle");
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2529
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2530 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2531
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2532
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2533 instanceKlassHandle ClassFileParser::parseClassFile(symbolHandle name,
a61af66fc99e Initial load
duke
parents:
diff changeset
2534 Handle class_loader,
a61af66fc99e Initial load
duke
parents:
diff changeset
2535 Handle protection_domain,
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2536 KlassHandle host_klass,
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2537 GrowableArray<Handle>* cp_patches,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2538 symbolHandle& parsed_name,
973
ad6585fd4087 6830542: Performance: JVM_DefineClass already verified.
acorn
parents: 879
diff changeset
2539 bool verify,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2540 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2541 // So that JVMTI can cache class file in the state before retransformable agents
a61af66fc99e Initial load
duke
parents:
diff changeset
2542 // have modified it
a61af66fc99e Initial load
duke
parents:
diff changeset
2543 unsigned char *cached_class_file_bytes = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2544 jint cached_class_file_length;
a61af66fc99e Initial load
duke
parents:
diff changeset
2545
a61af66fc99e Initial load
duke
parents:
diff changeset
2546 ClassFileStream* cfs = stream();
a61af66fc99e Initial load
duke
parents:
diff changeset
2547 // Timing
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2548 assert(THREAD->is_Java_thread(), "must be a JavaThread");
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2549 JavaThread* jt = (JavaThread*) THREAD;
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2550
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2551 PerfClassTraceTime ctimer(ClassLoader::perf_class_parse_time(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2552 ClassLoader::perf_class_parse_selftime(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2553 NULL,
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2554 jt->get_thread_stat()->perf_recursion_counts_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2555 jt->get_thread_stat()->perf_timers_addr(),
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2556 PerfClassTraceTime::PARSE_CLASS);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2557
a61af66fc99e Initial load
duke
parents:
diff changeset
2558 _has_finalizer = _has_empty_finalizer = _has_vanilla_constructor = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2559
a61af66fc99e Initial load
duke
parents:
diff changeset
2560 if (JvmtiExport::should_post_class_file_load_hook()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2561 unsigned char* ptr = cfs->buffer();
a61af66fc99e Initial load
duke
parents:
diff changeset
2562 unsigned char* end_ptr = cfs->buffer() + cfs->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
2563
a61af66fc99e Initial load
duke
parents:
diff changeset
2564 JvmtiExport::post_class_file_load_hook(name, class_loader, protection_domain,
a61af66fc99e Initial load
duke
parents:
diff changeset
2565 &ptr, &end_ptr,
a61af66fc99e Initial load
duke
parents:
diff changeset
2566 &cached_class_file_bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
2567 &cached_class_file_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
2568
a61af66fc99e Initial load
duke
parents:
diff changeset
2569 if (ptr != cfs->buffer()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2570 // JVMTI agent has modified class file data.
a61af66fc99e Initial load
duke
parents:
diff changeset
2571 // Set new class file stream using JVMTI agent modified
a61af66fc99e Initial load
duke
parents:
diff changeset
2572 // class file data.
a61af66fc99e Initial load
duke
parents:
diff changeset
2573 cfs = new ClassFileStream(ptr, end_ptr - ptr, cfs->source());
a61af66fc99e Initial load
duke
parents:
diff changeset
2574 set_stream(cfs);
a61af66fc99e Initial load
duke
parents:
diff changeset
2575 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2576 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2577
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2578 _host_klass = host_klass;
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2579 _cp_patches = cp_patches;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2580
a61af66fc99e Initial load
duke
parents:
diff changeset
2581 instanceKlassHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
2582
a61af66fc99e Initial load
duke
parents:
diff changeset
2583 // Figure out whether we can skip format checking (matching classic VM behavior)
973
ad6585fd4087 6830542: Performance: JVM_DefineClass already verified.
acorn
parents: 879
diff changeset
2584 _need_verify = Verifier::should_verify_for(class_loader(), verify);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2585
a61af66fc99e Initial load
duke
parents:
diff changeset
2586 // Set the verify flag in stream
a61af66fc99e Initial load
duke
parents:
diff changeset
2587 cfs->set_verify(_need_verify);
a61af66fc99e Initial load
duke
parents:
diff changeset
2588
a61af66fc99e Initial load
duke
parents:
diff changeset
2589 // Save the class file name for easier error message printing.
a61af66fc99e Initial load
duke
parents:
diff changeset
2590 _class_name = name.not_null()? name : vmSymbolHandles::unknown_class_name();
a61af66fc99e Initial load
duke
parents:
diff changeset
2591
a61af66fc99e Initial load
duke
parents:
diff changeset
2592 cfs->guarantee_more(8, CHECK_(nullHandle)); // magic, major, minor
a61af66fc99e Initial load
duke
parents:
diff changeset
2593 // Magic value
a61af66fc99e Initial load
duke
parents:
diff changeset
2594 u4 magic = cfs->get_u4_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2595 guarantee_property(magic == JAVA_CLASSFILE_MAGIC,
a61af66fc99e Initial load
duke
parents:
diff changeset
2596 "Incompatible magic value %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2597 magic, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2598
a61af66fc99e Initial load
duke
parents:
diff changeset
2599 // Version numbers
a61af66fc99e Initial load
duke
parents:
diff changeset
2600 u2 minor_version = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2601 u2 major_version = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2602
a61af66fc99e Initial load
duke
parents:
diff changeset
2603 // Check version numbers - we check this even with verifier off
a61af66fc99e Initial load
duke
parents:
diff changeset
2604 if (!is_supported_version(major_version, minor_version)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2605 if (name.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2606 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
2607 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
2608 vmSymbolHandles::java_lang_UnsupportedClassVersionError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2609 "Unsupported major.minor version %u.%u",
a61af66fc99e Initial load
duke
parents:
diff changeset
2610 major_version,
a61af66fc99e Initial load
duke
parents:
diff changeset
2611 minor_version);
a61af66fc99e Initial load
duke
parents:
diff changeset
2612 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2613 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
2614 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
2615 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
2616 vmSymbolHandles::java_lang_UnsupportedClassVersionError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2617 "%s : Unsupported major.minor version %u.%u",
a61af66fc99e Initial load
duke
parents:
diff changeset
2618 name->as_C_string(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2619 major_version,
a61af66fc99e Initial load
duke
parents:
diff changeset
2620 minor_version);
a61af66fc99e Initial load
duke
parents:
diff changeset
2621 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2622 return nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
2623 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2624
a61af66fc99e Initial load
duke
parents:
diff changeset
2625 _major_version = major_version;
a61af66fc99e Initial load
duke
parents:
diff changeset
2626 _minor_version = minor_version;
a61af66fc99e Initial load
duke
parents:
diff changeset
2627
a61af66fc99e Initial load
duke
parents:
diff changeset
2628
a61af66fc99e Initial load
duke
parents:
diff changeset
2629 // Check if verification needs to be relaxed for this class file
a61af66fc99e Initial load
duke
parents:
diff changeset
2630 // Do not restrict it to jdk1.0 or jdk1.1 to maintain backward compatibility (4982376)
a61af66fc99e Initial load
duke
parents:
diff changeset
2631 _relax_verify = Verifier::relax_verify_for(class_loader());
a61af66fc99e Initial load
duke
parents:
diff changeset
2632
a61af66fc99e Initial load
duke
parents:
diff changeset
2633 // Constant pool
a61af66fc99e Initial load
duke
parents:
diff changeset
2634 constantPoolHandle cp = parse_constant_pool(CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2635 int cp_size = cp->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
2636
a61af66fc99e Initial load
duke
parents:
diff changeset
2637 cfs->guarantee_more(8, CHECK_(nullHandle)); // flags, this_class, super_class, infs_len
a61af66fc99e Initial load
duke
parents:
diff changeset
2638
a61af66fc99e Initial load
duke
parents:
diff changeset
2639 // Access flags
a61af66fc99e Initial load
duke
parents:
diff changeset
2640 AccessFlags access_flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
2641 jint flags = cfs->get_u2_fast() & JVM_RECOGNIZED_CLASS_MODIFIERS;
a61af66fc99e Initial load
duke
parents:
diff changeset
2642
a61af66fc99e Initial load
duke
parents:
diff changeset
2643 if ((flags & JVM_ACC_INTERFACE) && _major_version < JAVA_6_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2644 // Set abstract bit for old class files for backward compatibility
a61af66fc99e Initial load
duke
parents:
diff changeset
2645 flags |= JVM_ACC_ABSTRACT;
a61af66fc99e Initial load
duke
parents:
diff changeset
2646 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2647 verify_legal_class_modifiers(flags, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2648 access_flags.set_flags(flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
2649
a61af66fc99e Initial load
duke
parents:
diff changeset
2650 // This class and superclass
a61af66fc99e Initial load
duke
parents:
diff changeset
2651 instanceKlassHandle super_klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
2652 u2 this_class_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2653 check_property(
a61af66fc99e Initial load
duke
parents:
diff changeset
2654 valid_cp_range(this_class_index, cp_size) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2655 cp->tag_at(this_class_index).is_unresolved_klass(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2656 "Invalid this class index %u in constant pool in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2657 this_class_index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2658
a61af66fc99e Initial load
duke
parents:
diff changeset
2659 symbolHandle class_name (THREAD, cp->unresolved_klass_at(this_class_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
2660 assert(class_name.not_null(), "class_name can't be null");
a61af66fc99e Initial load
duke
parents:
diff changeset
2661
a61af66fc99e Initial load
duke
parents:
diff changeset
2662 // It's important to set parsed_name *before* resolving the super class.
a61af66fc99e Initial load
duke
parents:
diff changeset
2663 // (it's used for cleanup by the caller if parsing fails)
a61af66fc99e Initial load
duke
parents:
diff changeset
2664 parsed_name = class_name;
a61af66fc99e Initial load
duke
parents:
diff changeset
2665
a61af66fc99e Initial load
duke
parents:
diff changeset
2666 // Update _class_name which could be null previously to be class_name
a61af66fc99e Initial load
duke
parents:
diff changeset
2667 _class_name = class_name;
a61af66fc99e Initial load
duke
parents:
diff changeset
2668
a61af66fc99e Initial load
duke
parents:
diff changeset
2669 // Don't need to check whether this class name is legal or not.
a61af66fc99e Initial load
duke
parents:
diff changeset
2670 // It has been checked when constant pool is parsed.
a61af66fc99e Initial load
duke
parents:
diff changeset
2671 // However, make sure it is not an array type.
a61af66fc99e Initial load
duke
parents:
diff changeset
2672 if (_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2673 guarantee_property(class_name->byte_at(0) != JVM_SIGNATURE_ARRAY,
a61af66fc99e Initial load
duke
parents:
diff changeset
2674 "Bad class name in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2675 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2676 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2677
a61af66fc99e Initial load
duke
parents:
diff changeset
2678 klassOop preserve_this_klass; // for storing result across HandleMark
a61af66fc99e Initial load
duke
parents:
diff changeset
2679
a61af66fc99e Initial load
duke
parents:
diff changeset
2680 // release all handles when parsing is done
a61af66fc99e Initial load
duke
parents:
diff changeset
2681 { HandleMark hm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
2682
a61af66fc99e Initial load
duke
parents:
diff changeset
2683 // Checks if name in class file matches requested name
a61af66fc99e Initial load
duke
parents:
diff changeset
2684 if (name.not_null() && class_name() != name()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2685 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
2686 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
2687 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
2688 vmSymbolHandles::java_lang_NoClassDefFoundError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2689 "%s (wrong name: %s)",
a61af66fc99e Initial load
duke
parents:
diff changeset
2690 name->as_C_string(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2691 class_name->as_C_string()
a61af66fc99e Initial load
duke
parents:
diff changeset
2692 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2693 return nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
2694 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2695
a61af66fc99e Initial load
duke
parents:
diff changeset
2696 if (TraceClassLoadingPreorder) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2697 tty->print("[Loading %s", name()->as_klass_external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
2698 if (cfs->source() != NULL) tty->print(" from %s", cfs->source());
a61af66fc99e Initial load
duke
parents:
diff changeset
2699 tty->print_cr("]");
a61af66fc99e Initial load
duke
parents:
diff changeset
2700 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2701
a61af66fc99e Initial load
duke
parents:
diff changeset
2702 u2 super_class_index = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2703 if (super_class_index == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2704 check_property(class_name() == vmSymbols::java_lang_Object(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2705 "Invalid superclass index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2706 super_class_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
2707 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2708 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2709 check_property(valid_cp_range(super_class_index, cp_size) &&
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2710 is_klass_reference(cp, super_class_index),
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2711 "Invalid superclass index %u in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2712 super_class_index,
a61af66fc99e Initial load
duke
parents:
diff changeset
2713 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2714 // The class name should be legal because it is checked when parsing constant pool.
a61af66fc99e Initial load
duke
parents:
diff changeset
2715 // However, make sure it is not an array type.
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2716 bool is_array = false;
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2717 if (cp->tag_at(super_class_index).is_klass()) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2718 super_klass = instanceKlassHandle(THREAD, cp->resolved_klass_at(super_class_index));
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2719 if (_need_verify)
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2720 is_array = super_klass->oop_is_array();
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2721 } else if (_need_verify) {
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2722 is_array = (cp->unresolved_klass_at(super_class_index)->byte_at(0) == JVM_SIGNATURE_ARRAY);
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2723 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2724 if (_need_verify) {
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2725 guarantee_property(!is_array,
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2726 "Bad superclass name in class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2727 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2728 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2729
a61af66fc99e Initial load
duke
parents:
diff changeset
2730 // Interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
2731 u2 itfs_len = cfs->get_u2_fast();
a61af66fc99e Initial load
duke
parents:
diff changeset
2732 objArrayHandle local_interfaces;
a61af66fc99e Initial load
duke
parents:
diff changeset
2733 if (itfs_len == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2734 local_interfaces = objArrayHandle(THREAD, Universe::the_empty_system_obj_array());
a61af66fc99e Initial load
duke
parents:
diff changeset
2735 } else {
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2736 local_interfaces = parse_interfaces(cp, itfs_len, class_loader, protection_domain, _class_name, CHECK_(nullHandle));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2737 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2738
a61af66fc99e Initial load
duke
parents:
diff changeset
2739 // Fields (offsets are filled in later)
a61af66fc99e Initial load
duke
parents:
diff changeset
2740 struct FieldAllocationCount fac = {0,0,0,0,0,0,0,0,0,0};
a61af66fc99e Initial load
duke
parents:
diff changeset
2741 objArrayHandle fields_annotations;
a61af66fc99e Initial load
duke
parents:
diff changeset
2742 typeArrayHandle fields = parse_fields(cp, access_flags.is_interface(), &fac, &fields_annotations, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2743 // Methods
a61af66fc99e Initial load
duke
parents:
diff changeset
2744 bool has_final_method = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
2745 AccessFlags promoted_flags;
a61af66fc99e Initial load
duke
parents:
diff changeset
2746 promoted_flags.set_flags(0);
a61af66fc99e Initial load
duke
parents:
diff changeset
2747 // These need to be oop pointers because they are allocated lazily
a61af66fc99e Initial load
duke
parents:
diff changeset
2748 // inside parse_methods inside a nested HandleMark
a61af66fc99e Initial load
duke
parents:
diff changeset
2749 objArrayOop methods_annotations_oop = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2750 objArrayOop methods_parameter_annotations_oop = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2751 objArrayOop methods_default_annotations_oop = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
2752 objArrayHandle methods = parse_methods(cp, access_flags.is_interface(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2753 &promoted_flags,
a61af66fc99e Initial load
duke
parents:
diff changeset
2754 &has_final_method,
a61af66fc99e Initial load
duke
parents:
diff changeset
2755 &methods_annotations_oop,
a61af66fc99e Initial load
duke
parents:
diff changeset
2756 &methods_parameter_annotations_oop,
a61af66fc99e Initial load
duke
parents:
diff changeset
2757 &methods_default_annotations_oop,
a61af66fc99e Initial load
duke
parents:
diff changeset
2758 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2759
a61af66fc99e Initial load
duke
parents:
diff changeset
2760 objArrayHandle methods_annotations(THREAD, methods_annotations_oop);
a61af66fc99e Initial load
duke
parents:
diff changeset
2761 objArrayHandle methods_parameter_annotations(THREAD, methods_parameter_annotations_oop);
a61af66fc99e Initial load
duke
parents:
diff changeset
2762 objArrayHandle methods_default_annotations(THREAD, methods_default_annotations_oop);
a61af66fc99e Initial load
duke
parents:
diff changeset
2763
a61af66fc99e Initial load
duke
parents:
diff changeset
2764 // We check super class after class file is parsed and format is checked
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2765 if (super_class_index > 0 && super_klass.is_null()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2766 symbolHandle sk (THREAD, cp->klass_name_at(super_class_index));
a61af66fc99e Initial load
duke
parents:
diff changeset
2767 if (access_flags.is_interface()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2768 // Before attempting to resolve the superclass, check for class format
a61af66fc99e Initial load
duke
parents:
diff changeset
2769 // errors not checked yet.
a61af66fc99e Initial load
duke
parents:
diff changeset
2770 guarantee_property(sk() == vmSymbols::java_lang_Object(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2771 "Interfaces must have java.lang.Object as superclass in class file %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
2772 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2773 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2774 klassOop k = SystemDictionary::resolve_super_or_fail(class_name,
a61af66fc99e Initial load
duke
parents:
diff changeset
2775 sk,
a61af66fc99e Initial load
duke
parents:
diff changeset
2776 class_loader,
a61af66fc99e Initial load
duke
parents:
diff changeset
2777 protection_domain,
a61af66fc99e Initial load
duke
parents:
diff changeset
2778 true,
a61af66fc99e Initial load
duke
parents:
diff changeset
2779 CHECK_(nullHandle));
875
6a93908f268f 6857194: Add hotspot perf counters to aid class loading performance measurement
mchung
parents: 710
diff changeset
2780
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2781 KlassHandle kh (THREAD, k);
a61af66fc99e Initial load
duke
parents:
diff changeset
2782 super_klass = instanceKlassHandle(THREAD, kh());
474
7a018855d2f0 6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents: 431
diff changeset
2783 if (LinkWellKnownClasses) // my super class is well known to me
7a018855d2f0 6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents: 431
diff changeset
2784 cp->klass_at_put(super_class_index, super_klass()); // eagerly resolve
431
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2785 }
a45484ea312d 6653858: dynamic languages need to be able to load anonymous classes
jrose
parents: 196
diff changeset
2786 if (super_klass.not_null()) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2787 if (super_klass->is_interface()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2788 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
2789 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
2790 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
2791 vmSymbolHandles::java_lang_IncompatibleClassChangeError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2792 "class %s has interface %s as super class",
a61af66fc99e Initial load
duke
parents:
diff changeset
2793 class_name->as_klass_external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2794 super_klass->external_name()
a61af66fc99e Initial load
duke
parents:
diff changeset
2795 );
a61af66fc99e Initial load
duke
parents:
diff changeset
2796 return nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
2797 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2798 // Make sure super class is not final
a61af66fc99e Initial load
duke
parents:
diff changeset
2799 if (super_klass->is_final()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2800 THROW_MSG_(vmSymbols::java_lang_VerifyError(), "Cannot inherit from final class", nullHandle);
a61af66fc99e Initial load
duke
parents:
diff changeset
2801 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2802 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2803
a61af66fc99e Initial load
duke
parents:
diff changeset
2804 // Compute the transitive list of all unique interfaces implemented by this class
a61af66fc99e Initial load
duke
parents:
diff changeset
2805 objArrayHandle transitive_interfaces = compute_transitive_interfaces(super_klass, local_interfaces, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2806
a61af66fc99e Initial load
duke
parents:
diff changeset
2807 // sort methods
a61af66fc99e Initial load
duke
parents:
diff changeset
2808 typeArrayHandle method_ordering = sort_methods(methods,
a61af66fc99e Initial load
duke
parents:
diff changeset
2809 methods_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2810 methods_parameter_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2811 methods_default_annotations,
a61af66fc99e Initial load
duke
parents:
diff changeset
2812 CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2813
a61af66fc99e Initial load
duke
parents:
diff changeset
2814 // promote flags from parse_methods() to the klass' flags
a61af66fc99e Initial load
duke
parents:
diff changeset
2815 access_flags.add_promoted_flags(promoted_flags.as_int());
a61af66fc99e Initial load
duke
parents:
diff changeset
2816
a61af66fc99e Initial load
duke
parents:
diff changeset
2817 // Size of Java vtable (in words)
a61af66fc99e Initial load
duke
parents:
diff changeset
2818 int vtable_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2819 int itable_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2820 int num_miranda_methods = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2821
a61af66fc99e Initial load
duke
parents:
diff changeset
2822 klassVtable::compute_vtable_size_and_num_mirandas(vtable_size,
a61af66fc99e Initial load
duke
parents:
diff changeset
2823 num_miranda_methods,
a61af66fc99e Initial load
duke
parents:
diff changeset
2824 super_klass(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2825 methods(),
a61af66fc99e Initial load
duke
parents:
diff changeset
2826 access_flags,
652
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 579
diff changeset
2827 class_loader,
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 579
diff changeset
2828 class_name,
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 579
diff changeset
2829 local_interfaces(),
4aaa9f5e02a8 4766230: Hotspot vtable inconsistencies cause core dumps. 6579515. 6582242.
acorn
parents: 579
diff changeset
2830 CHECK_(nullHandle));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2831
a61af66fc99e Initial load
duke
parents:
diff changeset
2832 // Size of Java itable (in words)
a61af66fc99e Initial load
duke
parents:
diff changeset
2833 itable_size = access_flags.is_interface() ? 0 : klassItable::compute_itable_size(transitive_interfaces);
a61af66fc99e Initial load
duke
parents:
diff changeset
2834
a61af66fc99e Initial load
duke
parents:
diff changeset
2835 // Field size and offset computation
a61af66fc99e Initial load
duke
parents:
diff changeset
2836 int nonstatic_field_size = super_klass() == NULL ? 0 : super_klass->nonstatic_field_size();
a61af66fc99e Initial load
duke
parents:
diff changeset
2837 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2838 int orig_nonstatic_field_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2839 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2840 int static_field_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
2841 int next_static_oop_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2842 int next_static_double_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2843 int next_static_word_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2844 int next_static_short_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2845 int next_static_byte_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2846 int next_static_type_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2847 int next_nonstatic_oop_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2848 int next_nonstatic_double_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2849 int next_nonstatic_word_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2850 int next_nonstatic_short_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2851 int next_nonstatic_byte_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2852 int next_nonstatic_type_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2853 int first_nonstatic_oop_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2854 int first_nonstatic_field_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2855 int next_nonstatic_field_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2856
a61af66fc99e Initial load
duke
parents:
diff changeset
2857 // Calculate the starting byte offsets
a61af66fc99e Initial load
duke
parents:
diff changeset
2858 next_static_oop_offset = (instanceKlass::header_size() +
a61af66fc99e Initial load
duke
parents:
diff changeset
2859 align_object_offset(vtable_size) +
a61af66fc99e Initial load
duke
parents:
diff changeset
2860 align_object_offset(itable_size)) * wordSize;
a61af66fc99e Initial load
duke
parents:
diff changeset
2861 next_static_double_offset = next_static_oop_offset +
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2862 (fac.static_oop_count * heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2863 if ( fac.static_double_count &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2864 (Universe::field_type_should_be_aligned(T_DOUBLE) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2865 Universe::field_type_should_be_aligned(T_LONG)) ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2866 next_static_double_offset = align_size_up(next_static_double_offset, BytesPerLong);
a61af66fc99e Initial load
duke
parents:
diff changeset
2867 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2868
a61af66fc99e Initial load
duke
parents:
diff changeset
2869 next_static_word_offset = next_static_double_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2870 (fac.static_double_count * BytesPerLong);
a61af66fc99e Initial load
duke
parents:
diff changeset
2871 next_static_short_offset = next_static_word_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2872 (fac.static_word_count * BytesPerInt);
a61af66fc99e Initial load
duke
parents:
diff changeset
2873 next_static_byte_offset = next_static_short_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2874 (fac.static_short_count * BytesPerShort);
a61af66fc99e Initial load
duke
parents:
diff changeset
2875 next_static_type_offset = align_size_up((next_static_byte_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2876 fac.static_byte_count ), wordSize );
a61af66fc99e Initial load
duke
parents:
diff changeset
2877 static_field_size = (next_static_type_offset -
a61af66fc99e Initial load
duke
parents:
diff changeset
2878 next_static_oop_offset) / wordSize;
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
2879 first_nonstatic_field_offset = instanceOopDesc::base_offset_in_bytes() +
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
2880 nonstatic_field_size * heapOopSize;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2881 next_nonstatic_field_offset = first_nonstatic_field_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2882
a61af66fc99e Initial load
duke
parents:
diff changeset
2883 // Add fake fields for java.lang.Class instances (also see below)
a61af66fc99e Initial load
duke
parents:
diff changeset
2884 if (class_name() == vmSymbols::java_lang_Class() && class_loader.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2885 java_lang_Class_fix_pre(&methods, &fac, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2886 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2887
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2888 // adjust the vmentry field declaration in java.dyn.MethodHandle
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2889 if (EnableMethodHandles && class_name() == vmSymbols::sun_dyn_MethodHandleImpl() && class_loader.is_null()) {
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2890 java_dyn_MethodHandle_fix_pre(cp, &fields, &fac, CHECK_(nullHandle));
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2891 }
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
2892
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2893 // Add a fake "discovered" field if it is not present
a61af66fc99e Initial load
duke
parents:
diff changeset
2894 // for compatibility with earlier jdk's.
a61af66fc99e Initial load
duke
parents:
diff changeset
2895 if (class_name() == vmSymbols::java_lang_ref_Reference()
a61af66fc99e Initial load
duke
parents:
diff changeset
2896 && class_loader.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2897 java_lang_ref_Reference_fix_pre(&fields, cp, &fac, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
2898 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2899 // end of "discovered" field compactibility fix
a61af66fc99e Initial load
duke
parents:
diff changeset
2900
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2901 unsigned int nonstatic_double_count = fac.nonstatic_double_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2902 unsigned int nonstatic_word_count = fac.nonstatic_word_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2903 unsigned int nonstatic_short_count = fac.nonstatic_short_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2904 unsigned int nonstatic_byte_count = fac.nonstatic_byte_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2905 unsigned int nonstatic_oop_count = fac.nonstatic_oop_count;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2906
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2907 bool super_has_nonstatic_fields =
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2908 (super_klass() != NULL && super_klass->has_nonstatic_fields());
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2909 bool has_nonstatic_fields = super_has_nonstatic_fields ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2910 ((nonstatic_double_count + nonstatic_word_count +
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2911 nonstatic_short_count + nonstatic_byte_count +
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2912 nonstatic_oop_count) != 0);
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2913
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2914
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2915 // Prepare list of oops for oop map generation.
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2916 int* nonstatic_oop_offsets;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2917 unsigned int* nonstatic_oop_counts;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2918 unsigned int nonstatic_oop_map_count = 0;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2919
a61af66fc99e Initial load
duke
parents:
diff changeset
2920 nonstatic_oop_offsets = NEW_RESOURCE_ARRAY_IN_THREAD(
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2921 THREAD, int, nonstatic_oop_count + 1);
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
2922 nonstatic_oop_counts = NEW_RESOURCE_ARRAY_IN_THREAD(
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2923 THREAD, unsigned int, nonstatic_oop_count + 1);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2924
a61af66fc99e Initial load
duke
parents:
diff changeset
2925 // Add fake fields for java.lang.Class instances (also see above).
a61af66fc99e Initial load
duke
parents:
diff changeset
2926 // FieldsAllocationStyle and CompactFields values will be reset to default.
a61af66fc99e Initial load
duke
parents:
diff changeset
2927 if(class_name() == vmSymbols::java_lang_Class() && class_loader.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2928 java_lang_Class_fix_post(&next_nonstatic_field_offset);
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2929 nonstatic_oop_offsets[0] = first_nonstatic_field_offset;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2930 const uint fake_oop_count = (next_nonstatic_field_offset -
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2931 first_nonstatic_field_offset) / heapOopSize;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2932 nonstatic_oop_counts[0] = fake_oop_count;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2933 nonstatic_oop_map_count = 1;
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
2934 nonstatic_oop_count -= fake_oop_count;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2935 first_nonstatic_oop_offset = first_nonstatic_field_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2936 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
2937 first_nonstatic_oop_offset = 0; // will be set for first oop field
a61af66fc99e Initial load
duke
parents:
diff changeset
2938 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2939
a61af66fc99e Initial load
duke
parents:
diff changeset
2940 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
2941 if( PrintCompactFieldsSavings ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2942 next_nonstatic_double_offset = next_nonstatic_field_offset +
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2943 (nonstatic_oop_count * heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2944 if ( nonstatic_double_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2945 next_nonstatic_double_offset = align_size_up(next_nonstatic_double_offset, BytesPerLong);
a61af66fc99e Initial load
duke
parents:
diff changeset
2946 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2947 next_nonstatic_word_offset = next_nonstatic_double_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2948 (nonstatic_double_count * BytesPerLong);
a61af66fc99e Initial load
duke
parents:
diff changeset
2949 next_nonstatic_short_offset = next_nonstatic_word_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2950 (nonstatic_word_count * BytesPerInt);
a61af66fc99e Initial load
duke
parents:
diff changeset
2951 next_nonstatic_byte_offset = next_nonstatic_short_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
2952 (nonstatic_short_count * BytesPerShort);
a61af66fc99e Initial load
duke
parents:
diff changeset
2953 next_nonstatic_type_offset = align_size_up((next_nonstatic_byte_offset +
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
2954 nonstatic_byte_count ), heapOopSize );
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2955 orig_nonstatic_field_size = nonstatic_field_size +
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
2956 ((next_nonstatic_type_offset - first_nonstatic_field_offset)/heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2957 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2958 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
2959 bool compact_fields = CompactFields;
a61af66fc99e Initial load
duke
parents:
diff changeset
2960 int allocation_style = FieldsAllocationStyle;
1366
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
2961 if( allocation_style < 0 || allocation_style > 2 ) { // Out of range?
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
2962 assert(false, "0 <= FieldsAllocationStyle <= 2");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2963 allocation_style = 1; // Optimistic
a61af66fc99e Initial load
duke
parents:
diff changeset
2964 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2965
a61af66fc99e Initial load
duke
parents:
diff changeset
2966 // The next classes have predefined hard-coded fields offsets
a61af66fc99e Initial load
duke
parents:
diff changeset
2967 // (see in JavaClasses::compute_hard_coded_offsets()).
a61af66fc99e Initial load
duke
parents:
diff changeset
2968 // Use default fields allocation order for them.
a61af66fc99e Initial load
duke
parents:
diff changeset
2969 if( (allocation_style != 0 || compact_fields ) && class_loader.is_null() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
2970 (class_name() == vmSymbols::java_lang_AssertionStatusDirectives() ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2971 class_name() == vmSymbols::java_lang_Class() ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2972 class_name() == vmSymbols::java_lang_ClassLoader() ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2973 class_name() == vmSymbols::java_lang_ref_Reference() ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2974 class_name() == vmSymbols::java_lang_ref_SoftReference() ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2975 class_name() == vmSymbols::java_lang_StackTraceElement() ||
a61af66fc99e Initial load
duke
parents:
diff changeset
2976 class_name() == vmSymbols::java_lang_String() ||
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2977 class_name() == vmSymbols::java_lang_Throwable() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2978 class_name() == vmSymbols::java_lang_Boolean() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2979 class_name() == vmSymbols::java_lang_Character() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2980 class_name() == vmSymbols::java_lang_Float() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2981 class_name() == vmSymbols::java_lang_Double() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2982 class_name() == vmSymbols::java_lang_Byte() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2983 class_name() == vmSymbols::java_lang_Short() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2984 class_name() == vmSymbols::java_lang_Integer() ||
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2985 class_name() == vmSymbols::java_lang_Long())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2986 allocation_style = 0; // Allocate oops first
a61af66fc99e Initial load
duke
parents:
diff changeset
2987 compact_fields = false; // Don't compact fields
a61af66fc99e Initial load
duke
parents:
diff changeset
2988 }
a61af66fc99e Initial load
duke
parents:
diff changeset
2989
a61af66fc99e Initial load
duke
parents:
diff changeset
2990 if( allocation_style == 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2991 // Fields order: oops, longs/doubles, ints, shorts/chars, bytes
a61af66fc99e Initial load
duke
parents:
diff changeset
2992 next_nonstatic_oop_offset = next_nonstatic_field_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
2993 next_nonstatic_double_offset = next_nonstatic_oop_offset +
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
2994 (nonstatic_oop_count * heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
2995 } else if( allocation_style == 1 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
2996 // Fields order: longs/doubles, ints, shorts/chars, bytes, oops
a61af66fc99e Initial load
duke
parents:
diff changeset
2997 next_nonstatic_double_offset = next_nonstatic_field_offset;
1366
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
2998 } else if( allocation_style == 2 ) {
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
2999 // Fields allocation: oops fields in super and sub classes are together.
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3000 if( nonstatic_field_size > 0 && super_klass() != NULL &&
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3001 super_klass->nonstatic_oop_map_size() > 0 ) {
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3002 int map_size = super_klass->nonstatic_oop_map_size();
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3003 OopMapBlock* first_map = super_klass->start_of_nonstatic_oop_maps();
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3004 OopMapBlock* last_map = first_map + map_size - 1;
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3005 int next_offset = last_map->offset() + (last_map->count() * heapOopSize);
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3006 if (next_offset == next_nonstatic_field_offset) {
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3007 allocation_style = 0; // allocate oops first
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3008 next_nonstatic_oop_offset = next_nonstatic_field_offset;
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3009 next_nonstatic_double_offset = next_nonstatic_oop_offset +
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3010 (nonstatic_oop_count * heapOopSize);
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3011 }
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3012 }
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3013 if( allocation_style == 2 ) {
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3014 allocation_style = 1; // allocate oops last
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3015 next_nonstatic_double_offset = next_nonstatic_field_offset;
b9d85fcdf743 6940733: allocate non static oop fields in super and sub classes together
kvn
parents: 1144
diff changeset
3016 }
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3017 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3018 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
3019 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3020
a61af66fc99e Initial load
duke
parents:
diff changeset
3021 int nonstatic_oop_space_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3022 int nonstatic_word_space_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3023 int nonstatic_short_space_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3024 int nonstatic_byte_space_count = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3025 int nonstatic_oop_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3026 int nonstatic_word_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3027 int nonstatic_short_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3028 int nonstatic_byte_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3029
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3030 if( nonstatic_double_count > 0 ) {
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3031 int offset = next_nonstatic_double_offset;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3032 next_nonstatic_double_offset = align_size_up(offset, BytesPerLong);
a61af66fc99e Initial load
duke
parents:
diff changeset
3033 if( compact_fields && offset != next_nonstatic_double_offset ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3034 // Allocate available fields into the gap before double field.
a61af66fc99e Initial load
duke
parents:
diff changeset
3035 int length = next_nonstatic_double_offset - offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3036 assert(length == BytesPerInt, "");
a61af66fc99e Initial load
duke
parents:
diff changeset
3037 nonstatic_word_space_offset = offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3038 if( nonstatic_word_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3039 nonstatic_word_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3040 nonstatic_word_space_count = 1; // Only one will fit
a61af66fc99e Initial load
duke
parents:
diff changeset
3041 length -= BytesPerInt;
a61af66fc99e Initial load
duke
parents:
diff changeset
3042 offset += BytesPerInt;
a61af66fc99e Initial load
duke
parents:
diff changeset
3043 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3044 nonstatic_short_space_offset = offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3045 while( length >= BytesPerShort && nonstatic_short_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3046 nonstatic_short_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3047 nonstatic_short_space_count += 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3048 length -= BytesPerShort;
a61af66fc99e Initial load
duke
parents:
diff changeset
3049 offset += BytesPerShort;
a61af66fc99e Initial load
duke
parents:
diff changeset
3050 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3051 nonstatic_byte_space_offset = offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3052 while( length > 0 && nonstatic_byte_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3053 nonstatic_byte_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3054 nonstatic_byte_space_count += 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3055 length -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3056 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3057 // Allocate oop field in the gap if there are no other fields for that.
a61af66fc99e Initial load
duke
parents:
diff changeset
3058 nonstatic_oop_space_offset = offset;
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3059 if( length >= heapOopSize && nonstatic_oop_count > 0 &&
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3060 allocation_style != 0 ) { // when oop fields not first
a61af66fc99e Initial load
duke
parents:
diff changeset
3061 nonstatic_oop_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3062 nonstatic_oop_space_count = 1; // Only one will fit
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3063 length -= heapOopSize;
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3064 offset += heapOopSize;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3065 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3066 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3067 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3068
a61af66fc99e Initial load
duke
parents:
diff changeset
3069 next_nonstatic_word_offset = next_nonstatic_double_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
3070 (nonstatic_double_count * BytesPerLong);
a61af66fc99e Initial load
duke
parents:
diff changeset
3071 next_nonstatic_short_offset = next_nonstatic_word_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
3072 (nonstatic_word_count * BytesPerInt);
a61af66fc99e Initial load
duke
parents:
diff changeset
3073 next_nonstatic_byte_offset = next_nonstatic_short_offset +
a61af66fc99e Initial load
duke
parents:
diff changeset
3074 (nonstatic_short_count * BytesPerShort);
a61af66fc99e Initial load
duke
parents:
diff changeset
3075
a61af66fc99e Initial load
duke
parents:
diff changeset
3076 int notaligned_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3077 if( allocation_style == 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3078 notaligned_offset = next_nonstatic_byte_offset + nonstatic_byte_count;
a61af66fc99e Initial load
duke
parents:
diff changeset
3079 } else { // allocation_style == 1
a61af66fc99e Initial load
duke
parents:
diff changeset
3080 next_nonstatic_oop_offset = next_nonstatic_byte_offset + nonstatic_byte_count;
a61af66fc99e Initial load
duke
parents:
diff changeset
3081 if( nonstatic_oop_count > 0 ) {
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3082 next_nonstatic_oop_offset = align_size_up(next_nonstatic_oop_offset, heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3083 }
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3084 notaligned_offset = next_nonstatic_oop_offset + (nonstatic_oop_count * heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3085 }
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3086 next_nonstatic_type_offset = align_size_up(notaligned_offset, heapOopSize );
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3087 nonstatic_field_size = nonstatic_field_size + ((next_nonstatic_type_offset
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3088 - first_nonstatic_field_offset)/heapOopSize);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3089
a61af66fc99e Initial load
duke
parents:
diff changeset
3090 // Iterate over fields again and compute correct offsets.
a61af66fc99e Initial load
duke
parents:
diff changeset
3091 // The field allocation type was temporarily stored in the offset slot.
a61af66fc99e Initial load
duke
parents:
diff changeset
3092 // oop fields are located before non-oop fields (static and non-static).
a61af66fc99e Initial load
duke
parents:
diff changeset
3093 int len = fields->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3094 for (int i = 0; i < len; i += instanceKlass::next_offset) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3095 int real_offset;
1108
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
3096 FieldAllocationType atype = (FieldAllocationType) fields->ushort_at(i + instanceKlass::low_offset);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3097 switch (atype) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3098 case STATIC_OOP:
a61af66fc99e Initial load
duke
parents:
diff changeset
3099 real_offset = next_static_oop_offset;
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3100 next_static_oop_offset += heapOopSize;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3101 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3102 case STATIC_BYTE:
a61af66fc99e Initial load
duke
parents:
diff changeset
3103 real_offset = next_static_byte_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3104 next_static_byte_offset += 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3105 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3106 case STATIC_SHORT:
a61af66fc99e Initial load
duke
parents:
diff changeset
3107 real_offset = next_static_short_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3108 next_static_short_offset += BytesPerShort;
a61af66fc99e Initial load
duke
parents:
diff changeset
3109 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3110 case STATIC_WORD:
a61af66fc99e Initial load
duke
parents:
diff changeset
3111 real_offset = next_static_word_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3112 next_static_word_offset += BytesPerInt;
a61af66fc99e Initial load
duke
parents:
diff changeset
3113 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3114 case STATIC_ALIGNED_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
3115 case STATIC_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
3116 real_offset = next_static_double_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3117 next_static_double_offset += BytesPerLong;
a61af66fc99e Initial load
duke
parents:
diff changeset
3118 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3119 case NONSTATIC_OOP:
a61af66fc99e Initial load
duke
parents:
diff changeset
3120 if( nonstatic_oop_space_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3121 real_offset = nonstatic_oop_space_offset;
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3122 nonstatic_oop_space_offset += heapOopSize;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3123 nonstatic_oop_space_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3124 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3125 real_offset = next_nonstatic_oop_offset;
113
ba764ed4b6f2 6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents: 92
diff changeset
3126 next_nonstatic_oop_offset += heapOopSize;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3127 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3128 // Update oop maps
a61af66fc99e Initial load
duke
parents:
diff changeset
3129 if( nonstatic_oop_map_count > 0 &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3130 nonstatic_oop_offsets[nonstatic_oop_map_count - 1] ==
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3131 real_offset -
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3132 int(nonstatic_oop_counts[nonstatic_oop_map_count - 1]) *
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3133 heapOopSize ) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3134 // Extend current oop map
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3135 nonstatic_oop_counts[nonstatic_oop_map_count - 1] += 1;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3136 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3137 // Create new oop map
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3138 nonstatic_oop_offsets[nonstatic_oop_map_count] = real_offset;
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3139 nonstatic_oop_counts [nonstatic_oop_map_count] = 1;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3140 nonstatic_oop_map_count += 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3141 if( first_nonstatic_oop_offset == 0 ) { // Undefined
a61af66fc99e Initial load
duke
parents:
diff changeset
3142 first_nonstatic_oop_offset = real_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3143 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3144 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3145 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3146 case NONSTATIC_BYTE:
a61af66fc99e Initial load
duke
parents:
diff changeset
3147 if( nonstatic_byte_space_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3148 real_offset = nonstatic_byte_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3149 nonstatic_byte_space_offset += 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3150 nonstatic_byte_space_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3151 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3152 real_offset = next_nonstatic_byte_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3153 next_nonstatic_byte_offset += 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3154 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3155 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3156 case NONSTATIC_SHORT:
a61af66fc99e Initial load
duke
parents:
diff changeset
3157 if( nonstatic_short_space_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3158 real_offset = nonstatic_short_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3159 nonstatic_short_space_offset += BytesPerShort;
a61af66fc99e Initial load
duke
parents:
diff changeset
3160 nonstatic_short_space_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3161 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3162 real_offset = next_nonstatic_short_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3163 next_nonstatic_short_offset += BytesPerShort;
a61af66fc99e Initial load
duke
parents:
diff changeset
3164 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3165 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3166 case NONSTATIC_WORD:
a61af66fc99e Initial load
duke
parents:
diff changeset
3167 if( nonstatic_word_space_count > 0 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3168 real_offset = nonstatic_word_space_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3169 nonstatic_word_space_offset += BytesPerInt;
a61af66fc99e Initial load
duke
parents:
diff changeset
3170 nonstatic_word_space_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3171 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3172 real_offset = next_nonstatic_word_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3173 next_nonstatic_word_offset += BytesPerInt;
a61af66fc99e Initial load
duke
parents:
diff changeset
3174 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3175 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3176 case NONSTATIC_ALIGNED_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
3177 case NONSTATIC_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
3178 real_offset = next_nonstatic_double_offset;
a61af66fc99e Initial load
duke
parents:
diff changeset
3179 next_nonstatic_double_offset += BytesPerLong;
a61af66fc99e Initial load
duke
parents:
diff changeset
3180 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3181 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
3182 ShouldNotReachHere();
a61af66fc99e Initial load
duke
parents:
diff changeset
3183 }
1108
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
3184 fields->short_at_put(i + instanceKlass::low_offset, extract_low_short_from_int(real_offset));
85f13cdfbc1d 6829192: JSR 292 needs to support 64-bit x86
twisti
parents: 977
diff changeset
3185 fields->short_at_put(i + instanceKlass::high_offset, extract_high_short_from_int(real_offset));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3186 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3187
a61af66fc99e Initial load
duke
parents:
diff changeset
3188 // Size of instances
a61af66fc99e Initial load
duke
parents:
diff changeset
3189 int instance_size;
a61af66fc99e Initial load
duke
parents:
diff changeset
3190
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3191 next_nonstatic_type_offset = align_size_up(notaligned_offset, wordSize );
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3192 instance_size = align_object_size(next_nonstatic_type_offset / wordSize);
a61af66fc99e Initial load
duke
parents:
diff changeset
3193
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3194 assert(instance_size == align_object_size(align_size_up((instanceOopDesc::base_offset_in_bytes() + nonstatic_field_size*heapOopSize), wordSize) / wordSize), "consistent layout helper value");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3195
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3196 // Number of non-static oop map blocks allocated at end of klass.
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3197 const unsigned int total_oop_map_count =
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3198 compute_oop_map_count(super_klass, nonstatic_oop_map_count,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3199 first_nonstatic_oop_offset);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3200
a61af66fc99e Initial load
duke
parents:
diff changeset
3201 // Compute reference type
a61af66fc99e Initial load
duke
parents:
diff changeset
3202 ReferenceType rt;
a61af66fc99e Initial load
duke
parents:
diff changeset
3203 if (super_klass() == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3204 rt = REF_NONE;
a61af66fc99e Initial load
duke
parents:
diff changeset
3205 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3206 rt = super_klass->reference_type();
a61af66fc99e Initial load
duke
parents:
diff changeset
3207 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3208
a61af66fc99e Initial load
duke
parents:
diff changeset
3209 // We can now create the basic klassOop for this klass
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3210 klassOop ik = oopFactory::new_instanceKlass(vtable_size, itable_size,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3211 static_field_size,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3212 total_oop_map_count,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3213 rt, CHECK_(nullHandle));
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3214 instanceKlassHandle this_klass (THREAD, ik);
a61af66fc99e Initial load
duke
parents:
diff changeset
3215
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3216 assert(this_klass->static_field_size() == static_field_size, "sanity");
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3217 assert(this_klass->nonstatic_oop_map_count() == total_oop_map_count,
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3218 "sanity");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3219
a61af66fc99e Initial load
duke
parents:
diff changeset
3220 // Fill in information already parsed
a61af66fc99e Initial load
duke
parents:
diff changeset
3221 this_klass->set_access_flags(access_flags);
975
83c29a26f67c 6879572: SA fails _is_marked_dependent not found
acorn
parents: 974
diff changeset
3222 this_klass->set_should_verify_class(verify);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3223 jint lh = Klass::instance_layout_helper(instance_size, false);
a61af66fc99e Initial load
duke
parents:
diff changeset
3224 this_klass->set_layout_helper(lh);
a61af66fc99e Initial load
duke
parents:
diff changeset
3225 assert(this_klass->oop_is_instance(), "layout is correct");
a61af66fc99e Initial load
duke
parents:
diff changeset
3226 assert(this_klass->size_helper() == instance_size, "correct size_helper");
a61af66fc99e Initial load
duke
parents:
diff changeset
3227 // Not yet: supers are done below to support the new subtype-checking fields
a61af66fc99e Initial load
duke
parents:
diff changeset
3228 //this_klass->set_super(super_klass());
a61af66fc99e Initial load
duke
parents:
diff changeset
3229 this_klass->set_class_loader(class_loader());
a61af66fc99e Initial load
duke
parents:
diff changeset
3230 this_klass->set_nonstatic_field_size(nonstatic_field_size);
975
83c29a26f67c 6879572: SA fails _is_marked_dependent not found
acorn
parents: 974
diff changeset
3231 this_klass->set_has_nonstatic_fields(has_nonstatic_fields);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3232 this_klass->set_static_oop_field_size(fac.static_oop_count);
a61af66fc99e Initial load
duke
parents:
diff changeset
3233 cp->set_pool_holder(this_klass());
a61af66fc99e Initial load
duke
parents:
diff changeset
3234 this_klass->set_constants(cp());
a61af66fc99e Initial load
duke
parents:
diff changeset
3235 this_klass->set_local_interfaces(local_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3236 this_klass->set_fields(fields());
a61af66fc99e Initial load
duke
parents:
diff changeset
3237 this_klass->set_methods(methods());
a61af66fc99e Initial load
duke
parents:
diff changeset
3238 if (has_final_method) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3239 this_klass->set_has_final_method();
a61af66fc99e Initial load
duke
parents:
diff changeset
3240 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3241 this_klass->set_method_ordering(method_ordering());
977
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
3242 // The instanceKlass::_methods_jmethod_ids cache and the
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
3243 // instanceKlass::_methods_cached_itable_indices cache are
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
3244 // both managed on the assumption that the initial cache
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
3245 // size is equal to the number of methods in the class. If
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
3246 // that changes, then instanceKlass::idnum_can_increment()
74a5db69c1fe 6419370: 4/4 new jmethodID code has tiny holes in synchronization
dcubed
parents: 975
diff changeset
3247 // has to be changed accordingly.
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3248 this_klass->set_initial_method_idnum(methods->length());
a61af66fc99e Initial load
duke
parents:
diff changeset
3249 this_klass->set_name(cp->klass_name_at(this_class_index));
710
e5b0439ef4ae 6655638: dynamic languages need method handles
jrose
parents: 657
diff changeset
3250 if (LinkWellKnownClasses || is_anonymous()) // I am well known to myself
474
7a018855d2f0 6779339: turn off LinkWellKnownClasses by default pending further testing
jrose
parents: 431
diff changeset
3251 cp->klass_at_put(this_class_index, this_klass()); // eagerly resolve
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3252 this_klass->set_protection_domain(protection_domain());
a61af66fc99e Initial load
duke
parents:
diff changeset
3253 this_klass->set_fields_annotations(fields_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
3254 this_klass->set_methods_annotations(methods_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
3255 this_klass->set_methods_parameter_annotations(methods_parameter_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
3256 this_klass->set_methods_default_annotations(methods_default_annotations());
a61af66fc99e Initial load
duke
parents:
diff changeset
3257
a61af66fc99e Initial load
duke
parents:
diff changeset
3258 this_klass->set_minor_version(minor_version);
a61af66fc99e Initial load
duke
parents:
diff changeset
3259 this_klass->set_major_version(major_version);
a61af66fc99e Initial load
duke
parents:
diff changeset
3260
856
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3261 // Set up methodOop::intrinsic_id as soon as we know the names of methods.
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3262 // (We used to do this lazily, but now we query it in Rewriter,
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3263 // which is eagerly done for every method, so we might as well do it now,
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3264 // when everything is fresh in memory.)
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3265 if (methodOopDesc::klass_id_for_intrinsics(this_klass->as_klassOop()) != vmSymbols::NO_SID) {
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3266 for (int j = 0; j < methods->length(); j++) {
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3267 ((methodOop)methods->obj_at(j))->init_intrinsic_id();
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3268 }
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3269 }
75596850f863 6862576: vmIntrinsics needs cleanup in order to support JSR 292 intrinsics
jrose
parents: 710
diff changeset
3270
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3271 if (cached_class_file_bytes != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3272 // JVMTI: we have an instanceKlass now, tell it about the cached bytes
a61af66fc99e Initial load
duke
parents:
diff changeset
3273 this_klass->set_cached_class_file(cached_class_file_bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
3274 cached_class_file_length);
a61af66fc99e Initial load
duke
parents:
diff changeset
3275 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3276
a61af66fc99e Initial load
duke
parents:
diff changeset
3277 // Miranda methods
a61af66fc99e Initial load
duke
parents:
diff changeset
3278 if ((num_miranda_methods > 0) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3279 // if this class introduced new miranda methods or
a61af66fc99e Initial load
duke
parents:
diff changeset
3280 (super_klass.not_null() && (super_klass->has_miranda_methods()))
a61af66fc99e Initial load
duke
parents:
diff changeset
3281 // super class exists and this class inherited miranda methods
a61af66fc99e Initial load
duke
parents:
diff changeset
3282 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3283 this_klass->set_has_miranda_methods(); // then set a flag
a61af66fc99e Initial load
duke
parents:
diff changeset
3284 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3285
a61af66fc99e Initial load
duke
parents:
diff changeset
3286 // Additional attributes
a61af66fc99e Initial load
duke
parents:
diff changeset
3287 parse_classfile_attributes(cp, this_klass, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3288
a61af66fc99e Initial load
duke
parents:
diff changeset
3289 // Make sure this is the end of class file stream
a61af66fc99e Initial load
duke
parents:
diff changeset
3290 guarantee_property(cfs->at_eos(), "Extra bytes at the end of class file %s", CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3291
a61af66fc99e Initial load
duke
parents:
diff changeset
3292 // Initialize static fields
a61af66fc99e Initial load
duke
parents:
diff changeset
3293 this_klass->do_local_static_fields(&initialize_static_field, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3294
a61af66fc99e Initial load
duke
parents:
diff changeset
3295 // VerifyOops believes that once this has been set, the object is completely loaded.
a61af66fc99e Initial load
duke
parents:
diff changeset
3296 // Compute transitive closure of interfaces this class implements
a61af66fc99e Initial load
duke
parents:
diff changeset
3297 this_klass->set_transitive_interfaces(transitive_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3298
a61af66fc99e Initial load
duke
parents:
diff changeset
3299 // Fill in information needed to compute superclasses.
a61af66fc99e Initial load
duke
parents:
diff changeset
3300 this_klass->initialize_supers(super_klass(), CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3301
a61af66fc99e Initial load
duke
parents:
diff changeset
3302 // Initialize itable offset tables
a61af66fc99e Initial load
duke
parents:
diff changeset
3303 klassItable::setup_itable_offset_table(this_klass);
a61af66fc99e Initial load
duke
parents:
diff changeset
3304
a61af66fc99e Initial load
duke
parents:
diff changeset
3305 // Do final class setup
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3306 fill_oop_maps(this_klass, nonstatic_oop_map_count, nonstatic_oop_offsets, nonstatic_oop_counts);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3307
a61af66fc99e Initial load
duke
parents:
diff changeset
3308 set_precomputed_flags(this_klass);
a61af66fc99e Initial load
duke
parents:
diff changeset
3309
a61af66fc99e Initial load
duke
parents:
diff changeset
3310 // reinitialize modifiers, using the InnerClasses attribute
a61af66fc99e Initial load
duke
parents:
diff changeset
3311 int computed_modifiers = this_klass->compute_modifier_flags(CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3312 this_klass->set_modifier_flags(computed_modifiers);
a61af66fc99e Initial load
duke
parents:
diff changeset
3313
a61af66fc99e Initial load
duke
parents:
diff changeset
3314 // check if this class can access its super class
a61af66fc99e Initial load
duke
parents:
diff changeset
3315 check_super_class_access(this_klass, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3316
a61af66fc99e Initial load
duke
parents:
diff changeset
3317 // check if this class can access its superinterfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3318 check_super_interface_access(this_klass, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3319
a61af66fc99e Initial load
duke
parents:
diff changeset
3320 // check if this class overrides any final method
a61af66fc99e Initial load
duke
parents:
diff changeset
3321 check_final_method_override(this_klass, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3322
a61af66fc99e Initial load
duke
parents:
diff changeset
3323 // check that if this class is an interface then it doesn't have static methods
a61af66fc99e Initial load
duke
parents:
diff changeset
3324 if (this_klass->is_interface()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3325 check_illegal_static_method(this_klass, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3326 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3327
a61af66fc99e Initial load
duke
parents:
diff changeset
3328 ClassLoadingService::notify_class_loaded(instanceKlass::cast(this_klass()),
a61af66fc99e Initial load
duke
parents:
diff changeset
3329 false /* not shared class */);
a61af66fc99e Initial load
duke
parents:
diff changeset
3330
a61af66fc99e Initial load
duke
parents:
diff changeset
3331 if (TraceClassLoading) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3332 // print in a single call to reduce interleaving of output
a61af66fc99e Initial load
duke
parents:
diff changeset
3333 if (cfs->source() != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3334 tty->print("[Loaded %s from %s]\n", this_klass->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3335 cfs->source());
a61af66fc99e Initial load
duke
parents:
diff changeset
3336 } else if (class_loader.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3337 if (THREAD->is_Java_thread()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3338 klassOop caller = ((JavaThread*)THREAD)->security_get_caller_class(1);
a61af66fc99e Initial load
duke
parents:
diff changeset
3339 tty->print("[Loaded %s by instance of %s]\n",
a61af66fc99e Initial load
duke
parents:
diff changeset
3340 this_klass->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3341 instanceKlass::cast(caller)->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
3342 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3343 tty->print("[Loaded %s]\n", this_klass->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
3344 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3345 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3346 ResourceMark rm;
a61af66fc99e Initial load
duke
parents:
diff changeset
3347 tty->print("[Loaded %s from %s]\n", this_klass->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3348 instanceKlass::cast(class_loader->klass())->external_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
3349 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3350 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3351
a61af66fc99e Initial load
duke
parents:
diff changeset
3352 if (TraceClassResolution) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3353 // print out the superclass.
a61af66fc99e Initial load
duke
parents:
diff changeset
3354 const char * from = Klass::cast(this_klass())->external_name();
a61af66fc99e Initial load
duke
parents:
diff changeset
3355 if (this_klass->java_super() != NULL) {
657
715dceaa89b7 6603316: Improve instrumentation for classes loaded at startup
acorn
parents: 652
diff changeset
3356 tty->print("RESOLVE %s %s (super)\n", from, instanceKlass::cast(this_klass->java_super())->external_name());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3357 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3358 // print out each of the interface classes referred to by this class.
a61af66fc99e Initial load
duke
parents:
diff changeset
3359 objArrayHandle local_interfaces(THREAD, this_klass->local_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3360 if (!local_interfaces.is_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3361 int length = local_interfaces->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3362 for (int i = 0; i < length; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3363 klassOop k = klassOop(local_interfaces->obj_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
3364 instanceKlass* to_class = instanceKlass::cast(k);
a61af66fc99e Initial load
duke
parents:
diff changeset
3365 const char * to = to_class->external_name();
657
715dceaa89b7 6603316: Improve instrumentation for classes loaded at startup
acorn
parents: 652
diff changeset
3366 tty->print("RESOLVE %s %s (interface)\n", from, to);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3367 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3368 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3369 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3370
a61af66fc99e Initial load
duke
parents:
diff changeset
3371 #ifndef PRODUCT
a61af66fc99e Initial load
duke
parents:
diff changeset
3372 if( PrintCompactFieldsSavings ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3373 if( nonstatic_field_size < orig_nonstatic_field_size ) {
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3374 tty->print("[Saved %d of %d bytes in %s]\n",
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3375 (orig_nonstatic_field_size - nonstatic_field_size)*heapOopSize,
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3376 orig_nonstatic_field_size*heapOopSize,
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3377 this_klass->external_name());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3378 } else if( nonstatic_field_size > orig_nonstatic_field_size ) {
165
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3379 tty->print("[Wasted %d over %d bytes in %s]\n",
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3380 (nonstatic_field_size - orig_nonstatic_field_size)*heapOopSize,
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3381 orig_nonstatic_field_size*heapOopSize,
437d03ea40b1 6703888: Compressed Oops: use the 32-bits gap after klass in a object
kvn
parents: 136
diff changeset
3382 this_klass->external_name());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3383 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3384 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3385 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3386
a61af66fc99e Initial load
duke
parents:
diff changeset
3387 // preserve result across HandleMark
a61af66fc99e Initial load
duke
parents:
diff changeset
3388 preserve_this_klass = this_klass();
a61af66fc99e Initial load
duke
parents:
diff changeset
3389 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3390
a61af66fc99e Initial load
duke
parents:
diff changeset
3391 // Create new handle outside HandleMark
a61af66fc99e Initial load
duke
parents:
diff changeset
3392 instanceKlassHandle this_klass (THREAD, preserve_this_klass);
a61af66fc99e Initial load
duke
parents:
diff changeset
3393 debug_only(this_klass->as_klassOop()->verify();)
a61af66fc99e Initial load
duke
parents:
diff changeset
3394
a61af66fc99e Initial load
duke
parents:
diff changeset
3395 return this_klass;
a61af66fc99e Initial load
duke
parents:
diff changeset
3396 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3397
a61af66fc99e Initial load
duke
parents:
diff changeset
3398
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3399 unsigned int
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3400 ClassFileParser::compute_oop_map_count(instanceKlassHandle super,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3401 unsigned int nonstatic_oop_map_count,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3402 int first_nonstatic_oop_offset) {
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3403 unsigned int map_count =
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3404 super.is_null() ? 0 : super->nonstatic_oop_map_count();
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3405 if (nonstatic_oop_map_count > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3406 // We have oops to add to map
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3407 if (map_count == 0) {
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3408 map_count = nonstatic_oop_map_count;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3409 } else {
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3410 // Check whether we should add a new map block or whether the last one can
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3411 // be extended
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3412 OopMapBlock* const first_map = super->start_of_nonstatic_oop_maps();
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3413 OopMapBlock* const last_map = first_map + map_count - 1;
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3414
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3415 int next_offset = last_map->offset() + last_map->count() * heapOopSize;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3416 if (next_offset == first_nonstatic_oop_offset) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3417 // There is no gap bettwen superklass's last oop field and first
a61af66fc99e Initial load
duke
parents:
diff changeset
3418 // local oop field, merge maps.
a61af66fc99e Initial load
duke
parents:
diff changeset
3419 nonstatic_oop_map_count -= 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3420 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3421 // Superklass didn't end with a oop field, add extra maps
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3422 assert(next_offset < first_nonstatic_oop_offset, "just checking");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3423 }
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3424 map_count += nonstatic_oop_map_count;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3425 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3426 }
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3427 return map_count;
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3428 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3429
a61af66fc99e Initial load
duke
parents:
diff changeset
3430
a61af66fc99e Initial load
duke
parents:
diff changeset
3431 void ClassFileParser::fill_oop_maps(instanceKlassHandle k,
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3432 unsigned int nonstatic_oop_map_count,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3433 int* nonstatic_oop_offsets,
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3434 unsigned int* nonstatic_oop_counts) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3435 OopMapBlock* this_oop_map = k->start_of_nonstatic_oop_maps();
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3436 const instanceKlass* const super = k->superklass();
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3437 const unsigned int super_count = super ? super->nonstatic_oop_map_count() : 0;
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3438 if (super_count > 0) {
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3439 // Copy maps from superklass
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3440 OopMapBlock* super_oop_map = super->start_of_nonstatic_oop_maps();
939
9eebd3ac74cf 6845368: large objects cause a crash or unexpected exception
jcoomes
parents: 938
diff changeset
3441 for (unsigned int i = 0; i < super_count; ++i) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3442 *this_oop_map++ = *super_oop_map++;
a61af66fc99e Initial load
duke
parents:
diff changeset
3443 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3444 }
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3445
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3446 if (nonstatic_oop_map_count > 0) {
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3447 if (super_count + nonstatic_oop_map_count > k->nonstatic_oop_map_count()) {
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3448 // The counts differ because there is no gap between superklass's last oop
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3449 // field and the first local oop field. Extend the last oop map copied
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3450 // from the superklass instead of creating new one.
a61af66fc99e Initial load
duke
parents:
diff changeset
3451 nonstatic_oop_map_count--;
a61af66fc99e Initial load
duke
parents:
diff changeset
3452 nonstatic_oop_offsets++;
a61af66fc99e Initial load
duke
parents:
diff changeset
3453 this_oop_map--;
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3454 this_oop_map->set_count(this_oop_map->count() + *nonstatic_oop_counts++);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3455 this_oop_map++;
a61af66fc99e Initial load
duke
parents:
diff changeset
3456 }
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3457
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3458 // Add new map blocks, fill them
a61af66fc99e Initial load
duke
parents:
diff changeset
3459 while (nonstatic_oop_map_count-- > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3460 this_oop_map->set_offset(*nonstatic_oop_offsets++);
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3461 this_oop_map->set_count(*nonstatic_oop_counts++);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3462 this_oop_map++;
a61af66fc99e Initial load
duke
parents:
diff changeset
3463 }
938
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3464 assert(k->start_of_nonstatic_oop_maps() + k->nonstatic_oop_map_count() ==
b37c246bf7ce 6861660: OopMapBlock count/size confusion
jcoomes
parents: 879
diff changeset
3465 this_oop_map, "sanity");
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3466 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3467 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3468
a61af66fc99e Initial load
duke
parents:
diff changeset
3469
a61af66fc99e Initial load
duke
parents:
diff changeset
3470 void ClassFileParser::set_precomputed_flags(instanceKlassHandle k) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3471 klassOop super = k->super();
a61af66fc99e Initial load
duke
parents:
diff changeset
3472
a61af66fc99e Initial load
duke
parents:
diff changeset
3473 // Check if this klass has an empty finalize method (i.e. one with return bytecode only),
a61af66fc99e Initial load
duke
parents:
diff changeset
3474 // in which case we don't have to register objects as finalizable
a61af66fc99e Initial load
duke
parents:
diff changeset
3475 if (!_has_empty_finalizer) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3476 if (_has_finalizer ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3477 (super != NULL && super->klass_part()->has_finalizer())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3478 k->set_has_finalizer();
a61af66fc99e Initial load
duke
parents:
diff changeset
3479 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3480 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3481
a61af66fc99e Initial load
duke
parents:
diff changeset
3482 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
3483 bool f = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3484 methodOop m = k->lookup_method(vmSymbols::finalize_method_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3485 vmSymbols::void_method_signature());
a61af66fc99e Initial load
duke
parents:
diff changeset
3486 if (m != NULL && !m->is_empty_method()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3487 f = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3488 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3489 assert(f == k->has_finalizer(), "inconsistent has_finalizer");
a61af66fc99e Initial load
duke
parents:
diff changeset
3490 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3491
a61af66fc99e Initial load
duke
parents:
diff changeset
3492 // Check if this klass supports the java.lang.Cloneable interface
1142
4ce7240d622c 6914300: ciEnv should export all well known classes
never
parents: 1138
diff changeset
3493 if (SystemDictionary::Cloneable_klass_loaded()) {
4ce7240d622c 6914300: ciEnv should export all well known classes
never
parents: 1138
diff changeset
3494 if (k->is_subtype_of(SystemDictionary::Cloneable_klass())) {
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3495 k->set_is_cloneable();
a61af66fc99e Initial load
duke
parents:
diff changeset
3496 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3497 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3498
a61af66fc99e Initial load
duke
parents:
diff changeset
3499 // Check if this klass has a vanilla default constructor
a61af66fc99e Initial load
duke
parents:
diff changeset
3500 if (super == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3501 // java.lang.Object has empty default constructor
a61af66fc99e Initial load
duke
parents:
diff changeset
3502 k->set_has_vanilla_constructor();
a61af66fc99e Initial load
duke
parents:
diff changeset
3503 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3504 if (Klass::cast(super)->has_vanilla_constructor() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3505 _has_vanilla_constructor) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3506 k->set_has_vanilla_constructor();
a61af66fc99e Initial load
duke
parents:
diff changeset
3507 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3508 #ifdef ASSERT
a61af66fc99e Initial load
duke
parents:
diff changeset
3509 bool v = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3510 if (Klass::cast(super)->has_vanilla_constructor()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3511 methodOop constructor = k->find_method(vmSymbols::object_initializer_name(
a61af66fc99e Initial load
duke
parents:
diff changeset
3512 ), vmSymbols::void_method_signature());
a61af66fc99e Initial load
duke
parents:
diff changeset
3513 if (constructor != NULL && constructor->is_vanilla_constructor()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3514 v = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3515 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3516 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3517 assert(v == k->has_vanilla_constructor(), "inconsistent has_vanilla_constructor");
a61af66fc99e Initial load
duke
parents:
diff changeset
3518 #endif
a61af66fc99e Initial load
duke
parents:
diff changeset
3519 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3520
a61af66fc99e Initial load
duke
parents:
diff changeset
3521 // If it cannot be fast-path allocated, set a bit in the layout helper.
a61af66fc99e Initial load
duke
parents:
diff changeset
3522 // See documentation of instanceKlass::can_be_fastpath_allocated().
a61af66fc99e Initial load
duke
parents:
diff changeset
3523 assert(k->size_helper() > 0, "layout_helper is initialized");
a61af66fc99e Initial load
duke
parents:
diff changeset
3524 if ((!RegisterFinalizersAtInit && k->has_finalizer())
a61af66fc99e Initial load
duke
parents:
diff changeset
3525 || k->is_abstract() || k->is_interface()
a61af66fc99e Initial load
duke
parents:
diff changeset
3526 || (k->name() == vmSymbols::java_lang_Class()
a61af66fc99e Initial load
duke
parents:
diff changeset
3527 && k->class_loader() == NULL)
a61af66fc99e Initial load
duke
parents:
diff changeset
3528 || k->size_helper() >= FastAllocateSizeLimit) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3529 // Forbid fast-path allocation.
a61af66fc99e Initial load
duke
parents:
diff changeset
3530 jint lh = Klass::instance_layout_helper(k->size_helper(), true);
a61af66fc99e Initial load
duke
parents:
diff changeset
3531 k->set_layout_helper(lh);
a61af66fc99e Initial load
duke
parents:
diff changeset
3532 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3533 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3534
a61af66fc99e Initial load
duke
parents:
diff changeset
3535
a61af66fc99e Initial load
duke
parents:
diff changeset
3536 // utility method for appending and array with check for duplicates
a61af66fc99e Initial load
duke
parents:
diff changeset
3537
a61af66fc99e Initial load
duke
parents:
diff changeset
3538 void append_interfaces(objArrayHandle result, int& index, objArrayOop ifs) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3539 // iterate over new interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3540 for (int i = 0; i < ifs->length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3541 oop e = ifs->obj_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
3542 assert(e->is_klass() && instanceKlass::cast(klassOop(e))->is_interface(), "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
3543 // check for duplicates
a61af66fc99e Initial load
duke
parents:
diff changeset
3544 bool duplicate = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3545 for (int j = 0; j < index; j++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3546 if (result->obj_at(j) == e) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3547 duplicate = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3548 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3549 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3550 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3551 // add new interface
a61af66fc99e Initial load
duke
parents:
diff changeset
3552 if (!duplicate) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3553 result->obj_at_put(index++, e);
a61af66fc99e Initial load
duke
parents:
diff changeset
3554 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3555 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3556 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3557
a61af66fc99e Initial load
duke
parents:
diff changeset
3558 objArrayHandle ClassFileParser::compute_transitive_interfaces(instanceKlassHandle super, objArrayHandle local_ifs, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3559 // Compute maximum size for transitive interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3560 int max_transitive_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3561 int super_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3562 // Add superclass transitive interfaces size
a61af66fc99e Initial load
duke
parents:
diff changeset
3563 if (super.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3564 super_size = super->transitive_interfaces()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3565 max_transitive_size += super_size;
a61af66fc99e Initial load
duke
parents:
diff changeset
3566 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3567 // Add local interfaces' super interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3568 int local_size = local_ifs->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3569 for (int i = 0; i < local_size; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3570 klassOop l = klassOop(local_ifs->obj_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
3571 max_transitive_size += instanceKlass::cast(l)->transitive_interfaces()->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3572 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3573 // Finally add local interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3574 max_transitive_size += local_size;
a61af66fc99e Initial load
duke
parents:
diff changeset
3575 // Construct array
a61af66fc99e Initial load
duke
parents:
diff changeset
3576 objArrayHandle result;
a61af66fc99e Initial load
duke
parents:
diff changeset
3577 if (max_transitive_size == 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3578 // no interfaces, use canonicalized array
a61af66fc99e Initial load
duke
parents:
diff changeset
3579 result = objArrayHandle(THREAD, Universe::the_empty_system_obj_array());
a61af66fc99e Initial load
duke
parents:
diff changeset
3580 } else if (max_transitive_size == super_size) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3581 // no new local interfaces added, share superklass' transitive interface array
a61af66fc99e Initial load
duke
parents:
diff changeset
3582 result = objArrayHandle(THREAD, super->transitive_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3583 } else if (max_transitive_size == local_size) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3584 // only local interfaces added, share local interface array
a61af66fc99e Initial load
duke
parents:
diff changeset
3585 result = local_ifs;
a61af66fc99e Initial load
duke
parents:
diff changeset
3586 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3587 objArrayHandle nullHandle;
a61af66fc99e Initial load
duke
parents:
diff changeset
3588 objArrayOop new_objarray = oopFactory::new_system_objArray(max_transitive_size, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3589 result = objArrayHandle(THREAD, new_objarray);
a61af66fc99e Initial load
duke
parents:
diff changeset
3590 int index = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3591 // Copy down from superclass
a61af66fc99e Initial load
duke
parents:
diff changeset
3592 if (super.not_null()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3593 append_interfaces(result, index, super->transitive_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3594 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3595 // Copy down from local interfaces' superinterfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3596 for (int i = 0; i < local_ifs->length(); i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3597 klassOop l = klassOop(local_ifs->obj_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
3598 append_interfaces(result, index, instanceKlass::cast(l)->transitive_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3599 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3600 // Finally add local interfaces
a61af66fc99e Initial load
duke
parents:
diff changeset
3601 append_interfaces(result, index, local_ifs());
a61af66fc99e Initial load
duke
parents:
diff changeset
3602
a61af66fc99e Initial load
duke
parents:
diff changeset
3603 // Check if duplicates were removed
a61af66fc99e Initial load
duke
parents:
diff changeset
3604 if (index != max_transitive_size) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3605 assert(index < max_transitive_size, "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
3606 objArrayOop new_result = oopFactory::new_system_objArray(index, CHECK_(nullHandle));
a61af66fc99e Initial load
duke
parents:
diff changeset
3607 for (int i = 0; i < index; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3608 oop e = result->obj_at(i);
a61af66fc99e Initial load
duke
parents:
diff changeset
3609 assert(e != NULL, "just checking");
a61af66fc99e Initial load
duke
parents:
diff changeset
3610 new_result->obj_at_put(i, e);
a61af66fc99e Initial load
duke
parents:
diff changeset
3611 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3612 result = objArrayHandle(THREAD, new_result);
a61af66fc99e Initial load
duke
parents:
diff changeset
3613 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3614 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3615 return result;
a61af66fc99e Initial load
duke
parents:
diff changeset
3616 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3617
a61af66fc99e Initial load
duke
parents:
diff changeset
3618
a61af66fc99e Initial load
duke
parents:
diff changeset
3619 void ClassFileParser::check_super_class_access(instanceKlassHandle this_klass, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3620 klassOop super = this_klass->super();
a61af66fc99e Initial load
duke
parents:
diff changeset
3621 if ((super != NULL) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3622 (!Reflection::verify_class_access(this_klass->as_klassOop(), super, false))) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3623 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3624 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3625 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3626 vmSymbolHandles::java_lang_IllegalAccessError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3627 "class %s cannot access its superclass %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
3628 this_klass->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3629 instanceKlass::cast(super)->external_name()
a61af66fc99e Initial load
duke
parents:
diff changeset
3630 );
a61af66fc99e Initial load
duke
parents:
diff changeset
3631 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3632 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3633 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3634
a61af66fc99e Initial load
duke
parents:
diff changeset
3635
a61af66fc99e Initial load
duke
parents:
diff changeset
3636 void ClassFileParser::check_super_interface_access(instanceKlassHandle this_klass, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3637 objArrayHandle local_interfaces (THREAD, this_klass->local_interfaces());
a61af66fc99e Initial load
duke
parents:
diff changeset
3638 int lng = local_interfaces->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3639 for (int i = lng - 1; i >= 0; i--) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3640 klassOop k = klassOop(local_interfaces->obj_at(i));
a61af66fc99e Initial load
duke
parents:
diff changeset
3641 assert (k != NULL && Klass::cast(k)->is_interface(), "invalid interface");
a61af66fc99e Initial load
duke
parents:
diff changeset
3642 if (!Reflection::verify_class_access(this_klass->as_klassOop(), k, false)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3643 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3644 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3645 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3646 vmSymbolHandles::java_lang_IllegalAccessError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3647 "class %s cannot access its superinterface %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
3648 this_klass->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3649 instanceKlass::cast(k)->external_name()
a61af66fc99e Initial load
duke
parents:
diff changeset
3650 );
a61af66fc99e Initial load
duke
parents:
diff changeset
3651 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3652 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3653 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3654 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3655
a61af66fc99e Initial load
duke
parents:
diff changeset
3656
a61af66fc99e Initial load
duke
parents:
diff changeset
3657 void ClassFileParser::check_final_method_override(instanceKlassHandle this_klass, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3658 objArrayHandle methods (THREAD, this_klass->methods());
a61af66fc99e Initial load
duke
parents:
diff changeset
3659 int num_methods = methods->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3660
a61af66fc99e Initial load
duke
parents:
diff changeset
3661 // go thru each method and check if it overrides a final method
a61af66fc99e Initial load
duke
parents:
diff changeset
3662 for (int index = 0; index < num_methods; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3663 methodOop m = (methodOop)methods->obj_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
3664
a61af66fc99e Initial load
duke
parents:
diff changeset
3665 // skip private, static and <init> methods
a61af66fc99e Initial load
duke
parents:
diff changeset
3666 if ((!m->is_private()) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3667 (!m->is_static()) &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3668 (m->name() != vmSymbols::object_initializer_name())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3669
a61af66fc99e Initial load
duke
parents:
diff changeset
3670 symbolOop name = m->name();
a61af66fc99e Initial load
duke
parents:
diff changeset
3671 symbolOop signature = m->signature();
a61af66fc99e Initial load
duke
parents:
diff changeset
3672 klassOop k = this_klass->super();
a61af66fc99e Initial load
duke
parents:
diff changeset
3673 methodOop super_m = NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
3674 while (k != NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3675 // skip supers that don't have final methods.
a61af66fc99e Initial load
duke
parents:
diff changeset
3676 if (k->klass_part()->has_final_method()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3677 // lookup a matching method in the super class hierarchy
a61af66fc99e Initial load
duke
parents:
diff changeset
3678 super_m = instanceKlass::cast(k)->lookup_method(name, signature);
a61af66fc99e Initial load
duke
parents:
diff changeset
3679 if (super_m == NULL) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3680 break; // didn't find any match; get out
a61af66fc99e Initial load
duke
parents:
diff changeset
3681 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3682
a61af66fc99e Initial load
duke
parents:
diff changeset
3683 if (super_m->is_final() &&
a61af66fc99e Initial load
duke
parents:
diff changeset
3684 // matching method in super is final
a61af66fc99e Initial load
duke
parents:
diff changeset
3685 (Reflection::verify_field_access(this_klass->as_klassOop(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3686 super_m->method_holder(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3687 super_m->method_holder(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3688 super_m->access_flags(), false))
a61af66fc99e Initial load
duke
parents:
diff changeset
3689 // this class can access super final method and therefore override
a61af66fc99e Initial load
duke
parents:
diff changeset
3690 ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3691 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3692 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3693 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3694 vmSymbolHandles::java_lang_VerifyError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3695 "class %s overrides final method %s.%s",
a61af66fc99e Initial load
duke
parents:
diff changeset
3696 this_klass->external_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3697 name->as_C_string(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3698 signature->as_C_string()
a61af66fc99e Initial load
duke
parents:
diff changeset
3699 );
a61af66fc99e Initial load
duke
parents:
diff changeset
3700 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3701 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3702
a61af66fc99e Initial load
duke
parents:
diff changeset
3703 // continue to look from super_m's holder's super.
a61af66fc99e Initial load
duke
parents:
diff changeset
3704 k = instanceKlass::cast(super_m->method_holder())->super();
a61af66fc99e Initial load
duke
parents:
diff changeset
3705 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
3706 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3707
a61af66fc99e Initial load
duke
parents:
diff changeset
3708 k = k->klass_part()->super();
a61af66fc99e Initial load
duke
parents:
diff changeset
3709 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3710 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3711 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3712 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3713
a61af66fc99e Initial load
duke
parents:
diff changeset
3714
a61af66fc99e Initial load
duke
parents:
diff changeset
3715 // assumes that this_klass is an interface
a61af66fc99e Initial load
duke
parents:
diff changeset
3716 void ClassFileParser::check_illegal_static_method(instanceKlassHandle this_klass, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3717 assert(this_klass->is_interface(), "not an interface");
a61af66fc99e Initial load
duke
parents:
diff changeset
3718 objArrayHandle methods (THREAD, this_klass->methods());
a61af66fc99e Initial load
duke
parents:
diff changeset
3719 int num_methods = methods->length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3720
a61af66fc99e Initial load
duke
parents:
diff changeset
3721 for (int index = 0; index < num_methods; index++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3722 methodOop m = (methodOop)methods->obj_at(index);
a61af66fc99e Initial load
duke
parents:
diff changeset
3723 // if m is static and not the init method, throw a verify error
a61af66fc99e Initial load
duke
parents:
diff changeset
3724 if ((m->is_static()) && (m->name() != vmSymbols::class_initializer_name())) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3725 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3726 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3727 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3728 vmSymbolHandles::java_lang_VerifyError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3729 "Illegal static method %s in interface %s",
a61af66fc99e Initial load
duke
parents:
diff changeset
3730 m->name()->as_C_string(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3731 this_klass->external_name()
a61af66fc99e Initial load
duke
parents:
diff changeset
3732 );
a61af66fc99e Initial load
duke
parents:
diff changeset
3733 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3734 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3735 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3736 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3737
a61af66fc99e Initial load
duke
parents:
diff changeset
3738 // utility methods for format checking
a61af66fc99e Initial load
duke
parents:
diff changeset
3739
a61af66fc99e Initial load
duke
parents:
diff changeset
3740 void ClassFileParser::verify_legal_class_modifiers(jint flags, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3741 if (!_need_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
3742
a61af66fc99e Initial load
duke
parents:
diff changeset
3743 const bool is_interface = (flags & JVM_ACC_INTERFACE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3744 const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3745 const bool is_final = (flags & JVM_ACC_FINAL) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3746 const bool is_super = (flags & JVM_ACC_SUPER) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3747 const bool is_enum = (flags & JVM_ACC_ENUM) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3748 const bool is_annotation = (flags & JVM_ACC_ANNOTATION) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3749 const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION;
a61af66fc99e Initial load
duke
parents:
diff changeset
3750
a61af66fc99e Initial load
duke
parents:
diff changeset
3751 if ((is_abstract && is_final) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3752 (is_interface && !is_abstract) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3753 (is_interface && major_gte_15 && (is_super || is_enum)) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3754 (!is_interface && major_gte_15 && is_annotation)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3755 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3756 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3757 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3758 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3759 "Illegal class modifiers in class %s: 0x%X",
a61af66fc99e Initial load
duke
parents:
diff changeset
3760 _class_name->as_C_string(), flags
a61af66fc99e Initial load
duke
parents:
diff changeset
3761 );
a61af66fc99e Initial load
duke
parents:
diff changeset
3762 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3763 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3764 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3765
a61af66fc99e Initial load
duke
parents:
diff changeset
3766 bool ClassFileParser::has_illegal_visibility(jint flags) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3767 const bool is_public = (flags & JVM_ACC_PUBLIC) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3768 const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3769 const bool is_private = (flags & JVM_ACC_PRIVATE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3770
a61af66fc99e Initial load
duke
parents:
diff changeset
3771 return ((is_public && is_protected) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3772 (is_public && is_private) ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3773 (is_protected && is_private));
a61af66fc99e Initial load
duke
parents:
diff changeset
3774 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3775
a61af66fc99e Initial load
duke
parents:
diff changeset
3776 bool ClassFileParser::is_supported_version(u2 major, u2 minor) {
1124
2e8bdfdd3ba2 6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
xlu
parents: 977
diff changeset
3777 u2 max_version =
2e8bdfdd3ba2 6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
xlu
parents: 977
diff changeset
3778 JDK_Version::is_gte_jdk17x_version() ? JAVA_MAX_SUPPORTED_VERSION :
2e8bdfdd3ba2 6899467: System property java.class.version out-of-sync with VM for jdk 5.0 with HS 16 in nightly build
xlu
parents: 977
diff changeset
3779 (JDK_Version::is_gte_jdk16x_version() ? JAVA_6_VERSION : JAVA_1_5_VERSION);
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3780 return (major >= JAVA_MIN_SUPPORTED_VERSION) &&
176
6b648fefb395 6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents: 136
diff changeset
3781 (major <= max_version) &&
6b648fefb395 6705523: Fix for 6695506 will violate spec when used in JDK6
kamg
parents: 136
diff changeset
3782 ((major != max_version) ||
0
a61af66fc99e Initial load
duke
parents:
diff changeset
3783 (minor <= JAVA_MAX_SUPPORTED_MINOR_VERSION));
a61af66fc99e Initial load
duke
parents:
diff changeset
3784 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3785
a61af66fc99e Initial load
duke
parents:
diff changeset
3786 void ClassFileParser::verify_legal_field_modifiers(
a61af66fc99e Initial load
duke
parents:
diff changeset
3787 jint flags, bool is_interface, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3788 if (!_need_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
3789
a61af66fc99e Initial load
duke
parents:
diff changeset
3790 const bool is_public = (flags & JVM_ACC_PUBLIC) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3791 const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3792 const bool is_private = (flags & JVM_ACC_PRIVATE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3793 const bool is_static = (flags & JVM_ACC_STATIC) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3794 const bool is_final = (flags & JVM_ACC_FINAL) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3795 const bool is_volatile = (flags & JVM_ACC_VOLATILE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3796 const bool is_transient = (flags & JVM_ACC_TRANSIENT) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3797 const bool is_enum = (flags & JVM_ACC_ENUM) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3798 const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION;
a61af66fc99e Initial load
duke
parents:
diff changeset
3799
a61af66fc99e Initial load
duke
parents:
diff changeset
3800 bool is_illegal = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3801
a61af66fc99e Initial load
duke
parents:
diff changeset
3802 if (is_interface) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3803 if (!is_public || !is_static || !is_final || is_private ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3804 is_protected || is_volatile || is_transient ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3805 (major_gte_15 && is_enum)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3806 is_illegal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3807 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3808 } else { // not interface
a61af66fc99e Initial load
duke
parents:
diff changeset
3809 if (has_illegal_visibility(flags) || (is_final && is_volatile)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3810 is_illegal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3811 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3812 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3813
a61af66fc99e Initial load
duke
parents:
diff changeset
3814 if (is_illegal) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3815 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3816 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3817 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3818 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3819 "Illegal field modifiers in class %s: 0x%X",
a61af66fc99e Initial load
duke
parents:
diff changeset
3820 _class_name->as_C_string(), flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
3821 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3822 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3823 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3824
a61af66fc99e Initial load
duke
parents:
diff changeset
3825 void ClassFileParser::verify_legal_method_modifiers(
a61af66fc99e Initial load
duke
parents:
diff changeset
3826 jint flags, bool is_interface, symbolHandle name, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3827 if (!_need_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
3828
a61af66fc99e Initial load
duke
parents:
diff changeset
3829 const bool is_public = (flags & JVM_ACC_PUBLIC) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3830 const bool is_private = (flags & JVM_ACC_PRIVATE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3831 const bool is_static = (flags & JVM_ACC_STATIC) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3832 const bool is_final = (flags & JVM_ACC_FINAL) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3833 const bool is_native = (flags & JVM_ACC_NATIVE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3834 const bool is_abstract = (flags & JVM_ACC_ABSTRACT) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3835 const bool is_bridge = (flags & JVM_ACC_BRIDGE) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3836 const bool is_strict = (flags & JVM_ACC_STRICT) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3837 const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3838 const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION;
a61af66fc99e Initial load
duke
parents:
diff changeset
3839 const bool is_initializer = (name == vmSymbols::object_initializer_name());
a61af66fc99e Initial load
duke
parents:
diff changeset
3840
a61af66fc99e Initial load
duke
parents:
diff changeset
3841 bool is_illegal = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3842
a61af66fc99e Initial load
duke
parents:
diff changeset
3843 if (is_interface) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3844 if (!is_abstract || !is_public || is_static || is_final ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3845 is_native || (major_gte_15 && (is_synchronized || is_strict))) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3846 is_illegal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3847 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3848 } else { // not interface
a61af66fc99e Initial load
duke
parents:
diff changeset
3849 if (is_initializer) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3850 if (is_static || is_final || is_synchronized || is_native ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3851 is_abstract || (major_gte_15 && is_bridge)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3852 is_illegal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3853 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3854 } else { // not initializer
a61af66fc99e Initial load
duke
parents:
diff changeset
3855 if (is_abstract) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3856 if ((is_final || is_native || is_private || is_static ||
a61af66fc99e Initial load
duke
parents:
diff changeset
3857 (major_gte_15 && (is_synchronized || is_strict)))) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3858 is_illegal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3859 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3860 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3861 if (has_illegal_visibility(flags)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3862 is_illegal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
3863 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3864 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3865 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3866
a61af66fc99e Initial load
duke
parents:
diff changeset
3867 if (is_illegal) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3868 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3869 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3870 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3871 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3872 "Method %s in class %s has illegal modifiers: 0x%X",
a61af66fc99e Initial load
duke
parents:
diff changeset
3873 name->as_C_string(), _class_name->as_C_string(), flags);
a61af66fc99e Initial load
duke
parents:
diff changeset
3874 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3875 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3876 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3877
a61af66fc99e Initial load
duke
parents:
diff changeset
3878 void ClassFileParser::verify_legal_utf8(const unsigned char* buffer, int length, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3879 assert(_need_verify, "only called when _need_verify is true");
a61af66fc99e Initial load
duke
parents:
diff changeset
3880 int i = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
3881 int count = length >> 2;
a61af66fc99e Initial load
duke
parents:
diff changeset
3882 for (int k=0; k<count; k++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3883 unsigned char b0 = buffer[i];
a61af66fc99e Initial load
duke
parents:
diff changeset
3884 unsigned char b1 = buffer[i+1];
a61af66fc99e Initial load
duke
parents:
diff changeset
3885 unsigned char b2 = buffer[i+2];
a61af66fc99e Initial load
duke
parents:
diff changeset
3886 unsigned char b3 = buffer[i+3];
a61af66fc99e Initial load
duke
parents:
diff changeset
3887 // For an unsigned char v,
a61af66fc99e Initial load
duke
parents:
diff changeset
3888 // (v | v - 1) is < 128 (highest bit 0) for 0 < v < 128;
a61af66fc99e Initial load
duke
parents:
diff changeset
3889 // (v | v - 1) is >= 128 (highest bit 1) for v == 0 or v >= 128.
a61af66fc99e Initial load
duke
parents:
diff changeset
3890 unsigned char res = b0 | b0 - 1 |
a61af66fc99e Initial load
duke
parents:
diff changeset
3891 b1 | b1 - 1 |
a61af66fc99e Initial load
duke
parents:
diff changeset
3892 b2 | b2 - 1 |
a61af66fc99e Initial load
duke
parents:
diff changeset
3893 b3 | b3 - 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
3894 if (res >= 128) break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3895 i += 4;
a61af66fc99e Initial load
duke
parents:
diff changeset
3896 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3897 for(; i < length; i++) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3898 unsigned short c;
a61af66fc99e Initial load
duke
parents:
diff changeset
3899 // no embedded zeros
a61af66fc99e Initial load
duke
parents:
diff changeset
3900 guarantee_property((buffer[i] != 0), "Illegal UTF8 string in constant pool in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
3901 if(buffer[i] < 128) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3902 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
3903 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3904 if ((i + 5) < length) { // see if it's legal supplementary character
a61af66fc99e Initial load
duke
parents:
diff changeset
3905 if (UTF8::is_supplementary_character(&buffer[i])) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3906 c = UTF8::get_supplementary_character(&buffer[i]);
a61af66fc99e Initial load
duke
parents:
diff changeset
3907 i += 5;
a61af66fc99e Initial load
duke
parents:
diff changeset
3908 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
3909 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3910 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3911 switch (buffer[i] >> 4) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3912 default: break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3913 case 0x8: case 0x9: case 0xA: case 0xB: case 0xF:
a61af66fc99e Initial load
duke
parents:
diff changeset
3914 classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
3915 case 0xC: case 0xD: // 110xxxxx 10xxxxxx
a61af66fc99e Initial load
duke
parents:
diff changeset
3916 c = (buffer[i] & 0x1F) << 6;
a61af66fc99e Initial load
duke
parents:
diff changeset
3917 i++;
a61af66fc99e Initial load
duke
parents:
diff changeset
3918 if ((i < length) && ((buffer[i] & 0xC0) == 0x80)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3919 c += buffer[i] & 0x3F;
a61af66fc99e Initial load
duke
parents:
diff changeset
3920 if (_major_version <= 47 || c == 0 || c >= 0x80) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3921 // for classes with major > 47, c must a null or a character in its shortest form
a61af66fc99e Initial load
duke
parents:
diff changeset
3922 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3923 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3924 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3925 classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
3926 case 0xE: // 1110xxxx 10xxxxxx 10xxxxxx
a61af66fc99e Initial load
duke
parents:
diff changeset
3927 c = (buffer[i] & 0xF) << 12;
a61af66fc99e Initial load
duke
parents:
diff changeset
3928 i += 2;
a61af66fc99e Initial load
duke
parents:
diff changeset
3929 if ((i < length) && ((buffer[i-1] & 0xC0) == 0x80) && ((buffer[i] & 0xC0) == 0x80)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3930 c += ((buffer[i-1] & 0x3F) << 6) + (buffer[i] & 0x3F);
a61af66fc99e Initial load
duke
parents:
diff changeset
3931 if (_major_version <= 47 || c >= 0x800) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3932 // for classes with major > 47, c must be in its shortest form
a61af66fc99e Initial load
duke
parents:
diff changeset
3933 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
3934 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3935 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3936 classfile_parse_error("Illegal UTF8 string in constant pool in class file %s", CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
3937 } // end of switch
a61af66fc99e Initial load
duke
parents:
diff changeset
3938 } // end of for
a61af66fc99e Initial load
duke
parents:
diff changeset
3939 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3940
a61af66fc99e Initial load
duke
parents:
diff changeset
3941 // Checks if name is a legal class name.
a61af66fc99e Initial load
duke
parents:
diff changeset
3942 void ClassFileParser::verify_legal_class_name(symbolHandle name, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3943 if (!_need_verify || _relax_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
3944
a61af66fc99e Initial load
duke
parents:
diff changeset
3945 char buf[fixed_buffer_size];
a61af66fc99e Initial load
duke
parents:
diff changeset
3946 char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
3947 unsigned int length = name->utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3948 bool legal = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3949
a61af66fc99e Initial load
duke
parents:
diff changeset
3950 if (length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3951 char* p;
a61af66fc99e Initial load
duke
parents:
diff changeset
3952 if (bytes[0] == JVM_SIGNATURE_ARRAY) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3953 p = skip_over_field_signature(bytes, false, length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
3954 legal = (p != NULL) && ((p - bytes) == (int)length);
a61af66fc99e Initial load
duke
parents:
diff changeset
3955 } else if (_major_version < JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3956 if (bytes[0] != '<') {
a61af66fc99e Initial load
duke
parents:
diff changeset
3957 p = skip_over_field_name(bytes, true, length);
a61af66fc99e Initial load
duke
parents:
diff changeset
3958 legal = (p != NULL) && ((p - bytes) == (int)length);
a61af66fc99e Initial load
duke
parents:
diff changeset
3959 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3960 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3961 // 4900761: relax the constraints based on JSR202 spec
a61af66fc99e Initial load
duke
parents:
diff changeset
3962 // Class names may be drawn from the entire Unicode character set.
a61af66fc99e Initial load
duke
parents:
diff changeset
3963 // Identifiers between '/' must be unqualified names.
a61af66fc99e Initial load
duke
parents:
diff changeset
3964 // The utf8 string has been verified when parsing cpool entries.
a61af66fc99e Initial load
duke
parents:
diff changeset
3965 legal = verify_unqualified_name(bytes, length, LegalClass);
a61af66fc99e Initial load
duke
parents:
diff changeset
3966 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3967 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3968 if (!legal) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3969 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
3970 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
3971 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
3972 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
3973 "Illegal class name \"%s\" in class file %s", bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
3974 _class_name->as_C_string()
a61af66fc99e Initial load
duke
parents:
diff changeset
3975 );
a61af66fc99e Initial load
duke
parents:
diff changeset
3976 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
3977 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3978 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3979
a61af66fc99e Initial load
duke
parents:
diff changeset
3980 // Checks if name is a legal field name.
a61af66fc99e Initial load
duke
parents:
diff changeset
3981 void ClassFileParser::verify_legal_field_name(symbolHandle name, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3982 if (!_need_verify || _relax_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
3983
a61af66fc99e Initial load
duke
parents:
diff changeset
3984 char buf[fixed_buffer_size];
a61af66fc99e Initial load
duke
parents:
diff changeset
3985 char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
3986 unsigned int length = name->utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
3987 bool legal = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
3988
a61af66fc99e Initial load
duke
parents:
diff changeset
3989 if (length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3990 if (_major_version < JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
3991 if (bytes[0] != '<') {
a61af66fc99e Initial load
duke
parents:
diff changeset
3992 char* p = skip_over_field_name(bytes, false, length);
a61af66fc99e Initial load
duke
parents:
diff changeset
3993 legal = (p != NULL) && ((p - bytes) == (int)length);
a61af66fc99e Initial load
duke
parents:
diff changeset
3994 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3995 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
3996 // 4881221: relax the constraints based on JSR202 spec
a61af66fc99e Initial load
duke
parents:
diff changeset
3997 legal = verify_unqualified_name(bytes, length, LegalField);
a61af66fc99e Initial load
duke
parents:
diff changeset
3998 }
a61af66fc99e Initial load
duke
parents:
diff changeset
3999 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4000
a61af66fc99e Initial load
duke
parents:
diff changeset
4001 if (!legal) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4002 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
4003 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
4004 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
4005 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4006 "Illegal field name \"%s\" in class %s", bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
4007 _class_name->as_C_string()
a61af66fc99e Initial load
duke
parents:
diff changeset
4008 );
a61af66fc99e Initial load
duke
parents:
diff changeset
4009 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
4010 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4011 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4012
a61af66fc99e Initial load
duke
parents:
diff changeset
4013 // Checks if name is a legal method name.
a61af66fc99e Initial load
duke
parents:
diff changeset
4014 void ClassFileParser::verify_legal_method_name(symbolHandle name, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4015 if (!_need_verify || _relax_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
4016
a61af66fc99e Initial load
duke
parents:
diff changeset
4017 assert(!name.is_null(), "method name is null");
a61af66fc99e Initial load
duke
parents:
diff changeset
4018 char buf[fixed_buffer_size];
a61af66fc99e Initial load
duke
parents:
diff changeset
4019 char* bytes = name->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
4020 unsigned int length = name->utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
4021 bool legal = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
4022
a61af66fc99e Initial load
duke
parents:
diff changeset
4023 if (length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4024 if (bytes[0] == '<') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4025 if (name == vmSymbols::object_initializer_name() || name == vmSymbols::class_initializer_name()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4026 legal = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
4027 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4028 } else if (_major_version < JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4029 char* p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4030 p = skip_over_field_name(bytes, false, length);
a61af66fc99e Initial load
duke
parents:
diff changeset
4031 legal = (p != NULL) && ((p - bytes) == (int)length);
a61af66fc99e Initial load
duke
parents:
diff changeset
4032 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
4033 // 4881221: relax the constraints based on JSR202 spec
a61af66fc99e Initial load
duke
parents:
diff changeset
4034 legal = verify_unqualified_name(bytes, length, LegalMethod);
a61af66fc99e Initial load
duke
parents:
diff changeset
4035 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4036 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4037
a61af66fc99e Initial load
duke
parents:
diff changeset
4038 if (!legal) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4039 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
4040 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
4041 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
4042 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4043 "Illegal method name \"%s\" in class %s", bytes,
a61af66fc99e Initial load
duke
parents:
diff changeset
4044 _class_name->as_C_string()
a61af66fc99e Initial load
duke
parents:
diff changeset
4045 );
a61af66fc99e Initial load
duke
parents:
diff changeset
4046 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
4047 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4048 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4049
a61af66fc99e Initial load
duke
parents:
diff changeset
4050
a61af66fc99e Initial load
duke
parents:
diff changeset
4051 // Checks if signature is a legal field signature.
a61af66fc99e Initial load
duke
parents:
diff changeset
4052 void ClassFileParser::verify_legal_field_signature(symbolHandle name, symbolHandle signature, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4053 if (!_need_verify) { return; }
a61af66fc99e Initial load
duke
parents:
diff changeset
4054
a61af66fc99e Initial load
duke
parents:
diff changeset
4055 char buf[fixed_buffer_size];
a61af66fc99e Initial load
duke
parents:
diff changeset
4056 char* bytes = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
4057 unsigned int length = signature->utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
4058 char* p = skip_over_field_signature(bytes, false, length, CHECK);
a61af66fc99e Initial load
duke
parents:
diff changeset
4059
a61af66fc99e Initial load
duke
parents:
diff changeset
4060 if (p == NULL || (p - bytes) != (int)length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4061 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
4062 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
4063 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
4064 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4065 "Field \"%s\" in class %s has illegal signature \"%s\"",
a61af66fc99e Initial load
duke
parents:
diff changeset
4066 name->as_C_string(), _class_name->as_C_string(), bytes
a61af66fc99e Initial load
duke
parents:
diff changeset
4067 );
a61af66fc99e Initial load
duke
parents:
diff changeset
4068 return;
a61af66fc99e Initial load
duke
parents:
diff changeset
4069 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4070 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4071
a61af66fc99e Initial load
duke
parents:
diff changeset
4072 // Checks if signature is a legal method signature.
a61af66fc99e Initial load
duke
parents:
diff changeset
4073 // Returns number of parameters
a61af66fc99e Initial load
duke
parents:
diff changeset
4074 int ClassFileParser::verify_legal_method_signature(symbolHandle name, symbolHandle signature, TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4075 if (!_need_verify) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4076 // make sure caller's args_size will be less than 0 even for non-static
a61af66fc99e Initial load
duke
parents:
diff changeset
4077 // method so it will be recomputed in compute_size_of_parameters().
a61af66fc99e Initial load
duke
parents:
diff changeset
4078 return -2;
a61af66fc99e Initial load
duke
parents:
diff changeset
4079 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4080
a61af66fc99e Initial load
duke
parents:
diff changeset
4081 unsigned int args_size = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
4082 char buf[fixed_buffer_size];
a61af66fc99e Initial load
duke
parents:
diff changeset
4083 char* p = signature->as_utf8_flexible_buffer(THREAD, buf, fixed_buffer_size);
a61af66fc99e Initial load
duke
parents:
diff changeset
4084 unsigned int length = signature->utf8_length();
a61af66fc99e Initial load
duke
parents:
diff changeset
4085 char* nextp;
a61af66fc99e Initial load
duke
parents:
diff changeset
4086
a61af66fc99e Initial load
duke
parents:
diff changeset
4087 // The first character must be a '('
a61af66fc99e Initial load
duke
parents:
diff changeset
4088 if ((length > 0) && (*p++ == JVM_SIGNATURE_FUNC)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4089 length--;
a61af66fc99e Initial load
duke
parents:
diff changeset
4090 // Skip over legal field signatures
a61af66fc99e Initial load
duke
parents:
diff changeset
4091 nextp = skip_over_field_signature(p, false, length, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
4092 while ((length > 0) && (nextp != NULL)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4093 args_size++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4094 if (p[0] == 'J' || p[0] == 'D') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4095 args_size++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4096 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4097 length -= nextp - p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4098 p = nextp;
a61af66fc99e Initial load
duke
parents:
diff changeset
4099 nextp = skip_over_field_signature(p, false, length, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
4100 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4101 // The first non-signature thing better be a ')'
a61af66fc99e Initial load
duke
parents:
diff changeset
4102 if ((length > 0) && (*p++ == JVM_SIGNATURE_ENDFUNC)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4103 length--;
a61af66fc99e Initial load
duke
parents:
diff changeset
4104 if (name->utf8_length() > 0 && name->byte_at(0) == '<') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4105 // All internal methods must return void
a61af66fc99e Initial load
duke
parents:
diff changeset
4106 if ((length == 1) && (p[0] == JVM_SIGNATURE_VOID)) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4107 return args_size;
a61af66fc99e Initial load
duke
parents:
diff changeset
4108 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4109 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
4110 // Now we better just have a return value
a61af66fc99e Initial load
duke
parents:
diff changeset
4111 nextp = skip_over_field_signature(p, true, length, CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
4112 if (nextp && ((int)length == (nextp - p))) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4113 return args_size;
a61af66fc99e Initial load
duke
parents:
diff changeset
4114 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4115 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4116 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4117 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4118 // Report error
a61af66fc99e Initial load
duke
parents:
diff changeset
4119 ResourceMark rm(THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
4120 Exceptions::fthrow(
a61af66fc99e Initial load
duke
parents:
diff changeset
4121 THREAD_AND_LOCATION,
a61af66fc99e Initial load
duke
parents:
diff changeset
4122 vmSymbolHandles::java_lang_ClassFormatError(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4123 "Method \"%s\" in class %s has illegal signature \"%s\"",
a61af66fc99e Initial load
duke
parents:
diff changeset
4124 name->as_C_string(), _class_name->as_C_string(), p
a61af66fc99e Initial load
duke
parents:
diff changeset
4125 );
a61af66fc99e Initial load
duke
parents:
diff changeset
4126 return 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
4127 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4128
a61af66fc99e Initial load
duke
parents:
diff changeset
4129
a61af66fc99e Initial load
duke
parents:
diff changeset
4130 // Unqualified names may not contain the characters '.', ';', or '/'.
a61af66fc99e Initial load
duke
parents:
diff changeset
4131 // Method names also may not contain the characters '<' or '>', unless <init> or <clinit>.
a61af66fc99e Initial load
duke
parents:
diff changeset
4132 // Note that method names may not be <init> or <clinit> in this method.
a61af66fc99e Initial load
duke
parents:
diff changeset
4133 // Because these names have been checked as special cases before calling this method
a61af66fc99e Initial load
duke
parents:
diff changeset
4134 // in verify_legal_method_name.
a61af66fc99e Initial load
duke
parents:
diff changeset
4135 bool ClassFileParser::verify_unqualified_name(char* name, unsigned int length, int type) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4136 jchar ch;
a61af66fc99e Initial load
duke
parents:
diff changeset
4137
a61af66fc99e Initial load
duke
parents:
diff changeset
4138 for (char* p = name; p != name + length; ) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4139 ch = *p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4140 if (ch < 128) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4141 p++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4142 if (ch == '.' || ch == ';') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4143 return false; // do not permit '.' or ';'
a61af66fc99e Initial load
duke
parents:
diff changeset
4144 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4145 if (type != LegalClass && ch == '/') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4146 return false; // do not permit '/' unless it's class name
a61af66fc99e Initial load
duke
parents:
diff changeset
4147 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4148 if (type == LegalMethod && (ch == '<' || ch == '>')) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4149 return false; // do not permit '<' or '>' in method names
a61af66fc99e Initial load
duke
parents:
diff changeset
4150 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4151 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
4152 char* tmp_p = UTF8::next(p, &ch);
a61af66fc99e Initial load
duke
parents:
diff changeset
4153 p = tmp_p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4154 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4155 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4156 return true;
a61af66fc99e Initial load
duke
parents:
diff changeset
4157 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4158
a61af66fc99e Initial load
duke
parents:
diff changeset
4159
a61af66fc99e Initial load
duke
parents:
diff changeset
4160 // Take pointer to a string. Skip over the longest part of the string that could
a61af66fc99e Initial load
duke
parents:
diff changeset
4161 // be taken as a fieldname. Allow '/' if slash_ok is true.
a61af66fc99e Initial load
duke
parents:
diff changeset
4162 // Return a pointer to just past the fieldname.
a61af66fc99e Initial load
duke
parents:
diff changeset
4163 // Return NULL if no fieldname at all was found, or in the case of slash_ok
a61af66fc99e Initial load
duke
parents:
diff changeset
4164 // being true, we saw consecutive slashes (meaning we were looking for a
a61af66fc99e Initial load
duke
parents:
diff changeset
4165 // qualified path but found something that was badly-formed).
a61af66fc99e Initial load
duke
parents:
diff changeset
4166 char* ClassFileParser::skip_over_field_name(char* name, bool slash_ok, unsigned int length) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4167 char* p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4168 jchar ch;
a61af66fc99e Initial load
duke
parents:
diff changeset
4169 jboolean last_is_slash = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
4170 jboolean not_first_ch = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
4171
a61af66fc99e Initial load
duke
parents:
diff changeset
4172 for (p = name; p != name + length; not_first_ch = true) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4173 char* old_p = p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4174 ch = *p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4175 if (ch < 128) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4176 p++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4177 // quick check for ascii
a61af66fc99e Initial load
duke
parents:
diff changeset
4178 if ((ch >= 'a' && ch <= 'z') ||
a61af66fc99e Initial load
duke
parents:
diff changeset
4179 (ch >= 'A' && ch <= 'Z') ||
a61af66fc99e Initial load
duke
parents:
diff changeset
4180 (ch == '_' || ch == '$') ||
a61af66fc99e Initial load
duke
parents:
diff changeset
4181 (not_first_ch && ch >= '0' && ch <= '9')) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4182 last_is_slash = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
4183 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
4184 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4185 if (slash_ok && ch == '/') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4186 if (last_is_slash) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4187 return NULL; // Don't permit consecutive slashes
a61af66fc99e Initial load
duke
parents:
diff changeset
4188 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4189 last_is_slash = true;
a61af66fc99e Initial load
duke
parents:
diff changeset
4190 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
4191 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4192 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
4193 jint unicode_ch;
a61af66fc99e Initial load
duke
parents:
diff changeset
4194 char* tmp_p = UTF8::next_character(p, &unicode_ch);
a61af66fc99e Initial load
duke
parents:
diff changeset
4195 p = tmp_p;
a61af66fc99e Initial load
duke
parents:
diff changeset
4196 last_is_slash = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
4197 // Check if ch is Java identifier start or is Java identifier part
a61af66fc99e Initial load
duke
parents:
diff changeset
4198 // 4672820: call java.lang.Character methods directly without generating separate tables.
a61af66fc99e Initial load
duke
parents:
diff changeset
4199 EXCEPTION_MARK;
1142
4ce7240d622c 6914300: ciEnv should export all well known classes
never
parents: 1138
diff changeset
4200 instanceKlassHandle klass (THREAD, SystemDictionary::Character_klass());
0
a61af66fc99e Initial load
duke
parents:
diff changeset
4201
a61af66fc99e Initial load
duke
parents:
diff changeset
4202 // return value
a61af66fc99e Initial load
duke
parents:
diff changeset
4203 JavaValue result(T_BOOLEAN);
a61af66fc99e Initial load
duke
parents:
diff changeset
4204 // Set up the arguments to isJavaIdentifierStart and isJavaIdentifierPart
a61af66fc99e Initial load
duke
parents:
diff changeset
4205 JavaCallArguments args;
a61af66fc99e Initial load
duke
parents:
diff changeset
4206 args.push_int(unicode_ch);
a61af66fc99e Initial load
duke
parents:
diff changeset
4207
a61af66fc99e Initial load
duke
parents:
diff changeset
4208 // public static boolean isJavaIdentifierStart(char ch);
a61af66fc99e Initial load
duke
parents:
diff changeset
4209 JavaCalls::call_static(&result,
a61af66fc99e Initial load
duke
parents:
diff changeset
4210 klass,
a61af66fc99e Initial load
duke
parents:
diff changeset
4211 vmSymbolHandles::isJavaIdentifierStart_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4212 vmSymbolHandles::int_bool_signature(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4213 &args,
a61af66fc99e Initial load
duke
parents:
diff changeset
4214 THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
4215
a61af66fc99e Initial load
duke
parents:
diff changeset
4216 if (HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4217 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
4218 return 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
4219 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4220 if (result.get_jboolean()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4221 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
4222 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4223
a61af66fc99e Initial load
duke
parents:
diff changeset
4224 if (not_first_ch) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4225 // public static boolean isJavaIdentifierPart(char ch);
a61af66fc99e Initial load
duke
parents:
diff changeset
4226 JavaCalls::call_static(&result,
a61af66fc99e Initial load
duke
parents:
diff changeset
4227 klass,
a61af66fc99e Initial load
duke
parents:
diff changeset
4228 vmSymbolHandles::isJavaIdentifierPart_name(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4229 vmSymbolHandles::int_bool_signature(),
a61af66fc99e Initial load
duke
parents:
diff changeset
4230 &args,
a61af66fc99e Initial load
duke
parents:
diff changeset
4231 THREAD);
a61af66fc99e Initial load
duke
parents:
diff changeset
4232
a61af66fc99e Initial load
duke
parents:
diff changeset
4233 if (HAS_PENDING_EXCEPTION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4234 CLEAR_PENDING_EXCEPTION;
a61af66fc99e Initial load
duke
parents:
diff changeset
4235 return 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
4236 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4237
a61af66fc99e Initial load
duke
parents:
diff changeset
4238 if (result.get_jboolean()) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4239 continue;
a61af66fc99e Initial load
duke
parents:
diff changeset
4240 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4241 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4242 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4243 return (not_first_ch) ? old_p : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
4244 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4245 return (not_first_ch) ? p : NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
4246 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4247
a61af66fc99e Initial load
duke
parents:
diff changeset
4248
a61af66fc99e Initial load
duke
parents:
diff changeset
4249 // Take pointer to a string. Skip over the longest part of the string that could
a61af66fc99e Initial load
duke
parents:
diff changeset
4250 // be taken as a field signature. Allow "void" if void_ok.
a61af66fc99e Initial load
duke
parents:
diff changeset
4251 // Return a pointer to just past the signature.
a61af66fc99e Initial load
duke
parents:
diff changeset
4252 // Return NULL if no legal signature is found.
a61af66fc99e Initial load
duke
parents:
diff changeset
4253 char* ClassFileParser::skip_over_field_signature(char* signature,
a61af66fc99e Initial load
duke
parents:
diff changeset
4254 bool void_ok,
a61af66fc99e Initial load
duke
parents:
diff changeset
4255 unsigned int length,
a61af66fc99e Initial load
duke
parents:
diff changeset
4256 TRAPS) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4257 unsigned int array_dim = 0;
a61af66fc99e Initial load
duke
parents:
diff changeset
4258 while (length > 0) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4259 switch (signature[0]) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4260 case JVM_SIGNATURE_VOID: if (!void_ok) { return NULL; }
a61af66fc99e Initial load
duke
parents:
diff changeset
4261 case JVM_SIGNATURE_BOOLEAN:
a61af66fc99e Initial load
duke
parents:
diff changeset
4262 case JVM_SIGNATURE_BYTE:
a61af66fc99e Initial load
duke
parents:
diff changeset
4263 case JVM_SIGNATURE_CHAR:
a61af66fc99e Initial load
duke
parents:
diff changeset
4264 case JVM_SIGNATURE_SHORT:
a61af66fc99e Initial load
duke
parents:
diff changeset
4265 case JVM_SIGNATURE_INT:
a61af66fc99e Initial load
duke
parents:
diff changeset
4266 case JVM_SIGNATURE_FLOAT:
a61af66fc99e Initial load
duke
parents:
diff changeset
4267 case JVM_SIGNATURE_LONG:
a61af66fc99e Initial load
duke
parents:
diff changeset
4268 case JVM_SIGNATURE_DOUBLE:
a61af66fc99e Initial load
duke
parents:
diff changeset
4269 return signature + 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
4270 case JVM_SIGNATURE_CLASS: {
a61af66fc99e Initial load
duke
parents:
diff changeset
4271 if (_major_version < JAVA_1_5_VERSION) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4272 // Skip over the class name if one is there
a61af66fc99e Initial load
duke
parents:
diff changeset
4273 char* p = skip_over_field_name(signature + 1, true, --length);
a61af66fc99e Initial load
duke
parents:
diff changeset
4274
a61af66fc99e Initial load
duke
parents:
diff changeset
4275 // The next character better be a semicolon
a61af66fc99e Initial load
duke
parents:
diff changeset
4276 if (p && (p - signature) > 1 && p[0] == ';') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4277 return p + 1;
a61af66fc99e Initial load
duke
parents:
diff changeset
4278 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4279 } else {
a61af66fc99e Initial load
duke
parents:
diff changeset
4280 // 4900761: For class version > 48, any unicode is allowed in class name.
a61af66fc99e Initial load
duke
parents:
diff changeset
4281 length--;
a61af66fc99e Initial load
duke
parents:
diff changeset
4282 signature++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4283 while (length > 0 && signature[0] != ';') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4284 if (signature[0] == '.') {
a61af66fc99e Initial load
duke
parents:
diff changeset
4285 classfile_parse_error("Class name contains illegal character '.' in descriptor in class file %s", CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
4286 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4287 length--;
a61af66fc99e Initial load
duke
parents:
diff changeset
4288 signature++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4289 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4290 if (signature[0] == ';') { return signature + 1; }
a61af66fc99e Initial load
duke
parents:
diff changeset
4291 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4292
a61af66fc99e Initial load
duke
parents:
diff changeset
4293 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
4294 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4295 case JVM_SIGNATURE_ARRAY:
a61af66fc99e Initial load
duke
parents:
diff changeset
4296 array_dim++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4297 if (array_dim > 255) {
a61af66fc99e Initial load
duke
parents:
diff changeset
4298 // 4277370: array descriptor is valid only if it represents 255 or fewer dimensions.
a61af66fc99e Initial load
duke
parents:
diff changeset
4299 classfile_parse_error("Array type descriptor has more than 255 dimensions in class file %s", CHECK_0);
a61af66fc99e Initial load
duke
parents:
diff changeset
4300 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4301 // The rest of what's there better be a legal signature
a61af66fc99e Initial load
duke
parents:
diff changeset
4302 signature++;
a61af66fc99e Initial load
duke
parents:
diff changeset
4303 length--;
a61af66fc99e Initial load
duke
parents:
diff changeset
4304 void_ok = false;
a61af66fc99e Initial load
duke
parents:
diff changeset
4305 break;
a61af66fc99e Initial load
duke
parents:
diff changeset
4306
a61af66fc99e Initial load
duke
parents:
diff changeset
4307 default:
a61af66fc99e Initial load
duke
parents:
diff changeset
4308 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
4309 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4310 }
a61af66fc99e Initial load
duke
parents:
diff changeset
4311 return NULL;
a61af66fc99e Initial load
duke
parents:
diff changeset
4312 }