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0
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1 /*
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2 * Copyright 1997-2007 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/_javaClasses.cpp.incl"
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27
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28 // Helpful macro for computing field offsets at run time rather than hardcoding them
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29 #define COMPUTE_OFFSET(klass_name_as_C_str, dest_offset, klass_oop, name_symbol, signature_symbol) \
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30 { \
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31 fieldDescriptor fd; \
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32 instanceKlass* ik = instanceKlass::cast(klass_oop); \
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33 if (!ik->find_local_field(name_symbol, signature_symbol, &fd)) { \
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34 fatal("Invalid layout of " klass_name_as_C_str); \
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35 } \
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36 dest_offset = fd.offset(); \
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37 }
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38
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39 // Same as above but for "optional" offsets that might not be present in certain JDK versions
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40 #define COMPUTE_OPTIONAL_OFFSET(klass_name_as_C_str, dest_offset, klass_oop, name_symbol, signature_symbol) \
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41 { \
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42 fieldDescriptor fd; \
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43 instanceKlass* ik = instanceKlass::cast(klass_oop); \
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44 if (ik->find_local_field(name_symbol, signature_symbol, &fd)) { \
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45 dest_offset = fd.offset(); \
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46 } \
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47 }
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48
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49 Handle java_lang_String::basic_create(int length, bool tenured, TRAPS) {
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50 // Create the String object first, so there's a chance that the String
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51 // and the char array it points to end up in the same cache line.
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52 oop obj;
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53 if (tenured) {
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54 obj = instanceKlass::cast(SystemDictionary::string_klass())->allocate_permanent_instance(CHECK_NH);
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55 } else {
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56 obj = instanceKlass::cast(SystemDictionary::string_klass())->allocate_instance(CHECK_NH);
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57 }
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58
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59 // Create the char array. The String object must be handlized here
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60 // because GC can happen as a result of the allocation attempt.
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61 Handle h_obj(THREAD, obj);
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62 typeArrayOop buffer;
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63 if (tenured) {
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64 buffer = oopFactory::new_permanent_charArray(length, CHECK_NH);
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65 } else {
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66 buffer = oopFactory::new_charArray(length, CHECK_NH);
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67 }
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68
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69 // Point the String at the char array
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70 obj = h_obj();
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71 set_value(obj, buffer);
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72 // No need to zero the offset, allocation zero'ed the entire String object
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73 assert(offset(obj) == 0, "initial String offset should be zero");
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74 //set_offset(obj, 0);
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75 set_count(obj, length);
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76
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77 return h_obj;
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78 }
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79
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80 Handle java_lang_String::basic_create_from_unicode(jchar* unicode, int length, bool tenured, TRAPS) {
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81 Handle h_obj = basic_create(length, tenured, CHECK_NH);
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82 typeArrayOop buffer = value(h_obj());
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83 for (int index = 0; index < length; index++) {
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84 buffer->char_at_put(index, unicode[index]);
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85 }
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86 return h_obj;
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87 }
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88
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89 Handle java_lang_String::create_from_unicode(jchar* unicode, int length, TRAPS) {
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90 return basic_create_from_unicode(unicode, length, false, CHECK_NH);
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91 }
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92
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93 Handle java_lang_String::create_tenured_from_unicode(jchar* unicode, int length, TRAPS) {
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94 return basic_create_from_unicode(unicode, length, true, CHECK_NH);
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95 }
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96
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97 oop java_lang_String::create_oop_from_unicode(jchar* unicode, int length, TRAPS) {
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98 Handle h_obj = basic_create_from_unicode(unicode, length, false, CHECK_0);
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99 return h_obj();
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100 }
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101
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102 Handle java_lang_String::create_from_str(const char* utf8_str, TRAPS) {
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103 if (utf8_str == NULL) {
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104 return Handle();
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105 }
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106 int length = UTF8::unicode_length(utf8_str);
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107 Handle h_obj = basic_create(length, false, CHECK_NH);
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108 if (length > 0) {
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109 UTF8::convert_to_unicode(utf8_str, value(h_obj())->char_at_addr(0), length);
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110 }
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111 return h_obj;
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112 }
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113
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114 oop java_lang_String::create_oop_from_str(const char* utf8_str, TRAPS) {
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115 Handle h_obj = create_from_str(utf8_str, CHECK_0);
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116 return h_obj();
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117 }
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118
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119 Handle java_lang_String::create_from_symbol(symbolHandle symbol, TRAPS) {
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120 int length = UTF8::unicode_length((char*)symbol->bytes(), symbol->utf8_length());
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121 Handle h_obj = basic_create(length, false, CHECK_NH);
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122 if (length > 0) {
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123 UTF8::convert_to_unicode((char*)symbol->bytes(), value(h_obj())->char_at_addr(0), length);
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124 }
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125 return h_obj;
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126 }
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127
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128 // Converts a C string to a Java String based on current encoding
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129 Handle java_lang_String::create_from_platform_dependent_str(const char* str, TRAPS) {
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130 assert(str != NULL, "bad arguments");
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131
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132 typedef jstring (*to_java_string_fn_t)(JNIEnv*, const char *);
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133 static to_java_string_fn_t _to_java_string_fn = NULL;
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134
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135 if (_to_java_string_fn == NULL) {
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136 void *lib_handle = os::native_java_library();
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137 _to_java_string_fn = CAST_TO_FN_PTR(to_java_string_fn_t, hpi::dll_lookup(lib_handle, "NewStringPlatform"));
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138 if (_to_java_string_fn == NULL) {
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139 fatal("NewStringPlatform missing");
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140 }
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141 }
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142
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143 jstring js = NULL;
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144 { JavaThread* thread = (JavaThread*)THREAD;
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145 assert(thread->is_Java_thread(), "must be java thread");
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146 ThreadToNativeFromVM ttn(thread);
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147 HandleMark hm(thread);
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148 js = (_to_java_string_fn)(thread->jni_environment(), str);
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149 }
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150 return Handle(THREAD, JNIHandles::resolve(js));
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151 }
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152
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153 Handle java_lang_String::char_converter(Handle java_string, jchar from_char, jchar to_char, TRAPS) {
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154 oop obj = java_string();
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155 // Typical usage is to convert all '/' to '.' in string.
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156 typeArrayOop value = java_lang_String::value(obj);
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157 int offset = java_lang_String::offset(obj);
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158 int length = java_lang_String::length(obj);
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159
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160 // First check if any from_char exist
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161 int index; // Declared outside, used later
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162 for (index = 0; index < length; index++) {
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163 if (value->char_at(index + offset) == from_char) {
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164 break;
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165 }
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166 }
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167 if (index == length) {
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168 // No from_char, so do not copy.
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169 return java_string;
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170 }
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171
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172 // Create new UNICODE buffer. Must handlize value because GC
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173 // may happen during String and char array creation.
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174 typeArrayHandle h_value(THREAD, value);
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175 Handle string = basic_create(length, false, CHECK_NH);
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176
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177 typeArrayOop from_buffer = h_value();
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178 typeArrayOop to_buffer = java_lang_String::value(string());
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179
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180 // Copy contents
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181 for (index = 0; index < length; index++) {
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182 jchar c = from_buffer->char_at(index + offset);
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183 if (c == from_char) {
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184 c = to_char;
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185 }
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186 to_buffer->char_at_put(index, c);
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187 }
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188 return string;
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189 }
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190
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191 jchar* java_lang_String::as_unicode_string(oop java_string, int& length) {
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192 typeArrayOop value = java_lang_String::value(java_string);
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193 int offset = java_lang_String::offset(java_string);
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194 length = java_lang_String::length(java_string);
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195
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196 jchar* result = NEW_RESOURCE_ARRAY(jchar, length);
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197 for (int index = 0; index < length; index++) {
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198 result[index] = value->char_at(index + offset);
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199 }
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200 return result;
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201 }
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202
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203 symbolHandle java_lang_String::as_symbol(Handle java_string, TRAPS) {
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204 oop obj = java_string();
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205 typeArrayOop value = java_lang_String::value(obj);
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206 int offset = java_lang_String::offset(obj);
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207 int length = java_lang_String::length(obj);
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208
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209 ResourceMark rm(THREAD);
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210 symbolHandle result;
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211
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212 if (length > 0) {
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213 int utf8_length = UNICODE::utf8_length(value->char_at_addr(offset), length);
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214 char* chars = NEW_RESOURCE_ARRAY(char, utf8_length + 1);
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215 UNICODE::convert_to_utf8(value->char_at_addr(offset), length, chars);
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216 // Allocate the symbol
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217 result = oopFactory::new_symbol_handle(chars, utf8_length, CHECK_(symbolHandle()));
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218 } else {
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219 result = oopFactory::new_symbol_handle("", 0, CHECK_(symbolHandle()));
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220 }
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221 return result;
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222 }
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223
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224 int java_lang_String::utf8_length(oop java_string) {
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225 typeArrayOop value = java_lang_String::value(java_string);
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226 int offset = java_lang_String::offset(java_string);
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227 int length = java_lang_String::length(java_string);
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228 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
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229 return UNICODE::utf8_length(position, length);
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230 }
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231
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232 char* java_lang_String::as_utf8_string(oop java_string) {
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233 typeArrayOop value = java_lang_String::value(java_string);
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234 int offset = java_lang_String::offset(java_string);
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235 int length = java_lang_String::length(java_string);
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236 jchar* position = (length == 0) ? NULL : value->char_at_addr(offset);
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237 return UNICODE::as_utf8(position, length);
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238 }
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239
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240 char* java_lang_String::as_utf8_string(oop java_string, int start, int len) {
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241 typeArrayOop value = java_lang_String::value(java_string);
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242 int offset = java_lang_String::offset(java_string);
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243 int length = java_lang_String::length(java_string);
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244 assert(start + len <= length, "just checking");
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245 jchar* position = value->char_at_addr(offset + start);
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246 return UNICODE::as_utf8(position, len);
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247 }
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248
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249 bool java_lang_String::equals(oop java_string, jchar* chars, int len) {
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250 assert(SharedSkipVerify ||
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251 java_string->klass() == SystemDictionary::string_klass(),
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252 "must be java_string");
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253 typeArrayOop value = java_lang_String::value(java_string);
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254 int offset = java_lang_String::offset(java_string);
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255 int length = java_lang_String::length(java_string);
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256 if (length != len) {
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257 return false;
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258 }
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259 for (int i = 0; i < len; i++) {
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260 if (value->char_at(i + offset) != chars[i]) {
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261 return false;
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262 }
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263 }
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264 return true;
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265 }
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266
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267 void java_lang_String::print(Handle java_string, outputStream* st) {
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268 oop obj = java_string();
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269 assert(obj->klass() == SystemDictionary::string_klass(), "must be java_string");
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270 typeArrayOop value = java_lang_String::value(obj);
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271 int offset = java_lang_String::offset(obj);
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272 int length = java_lang_String::length(obj);
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273
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274 int end = MIN2(length, 100);
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275 if (value == NULL) {
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276 // This can happen if, e.g., printing a String
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277 // object before its initializer has been called
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278 st->print_cr("NULL");
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279 } else {
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280 st->print("\"");
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281 for (int index = 0; index < length; index++) {
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282 st->print("%c", value->char_at(index + offset));
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283 }
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284 st->print("\"");
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285 }
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286 }
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287
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288
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289 oop java_lang_Class::create_mirror(KlassHandle k, TRAPS) {
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290 assert(k->java_mirror() == NULL, "should only assign mirror once");
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291 // Use this moment of initialization to cache modifier_flags also,
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292 // to support Class.getModifiers(). Instance classes recalculate
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293 // the cached flags after the class file is parsed, but before the
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294 // class is put into the system dictionary.
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295 int computed_modifiers = k->compute_modifier_flags(CHECK_0);
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296 k->set_modifier_flags(computed_modifiers);
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297 if (SystemDictionary::class_klass_loaded()) {
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298 // Allocate mirror (java.lang.Class instance)
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299 Handle mirror = instanceKlass::cast(SystemDictionary::class_klass())->allocate_permanent_instance(CHECK_0);
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300 // Setup indirections
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301 mirror->obj_field_put(klass_offset, k());
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302 k->set_java_mirror(mirror());
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303 // It might also have a component mirror. This mirror must already exist.
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304 if (k->oop_is_javaArray()) {
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305 Handle comp_mirror;
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306 if (k->oop_is_typeArray()) {
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307 BasicType type = typeArrayKlass::cast(k->as_klassOop())->element_type();
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308 comp_mirror = Universe::java_mirror(type);
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309 assert(comp_mirror.not_null(), "must have primitive mirror");
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310 } else if (k->oop_is_objArray()) {
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311 klassOop element_klass = objArrayKlass::cast(k->as_klassOop())->element_klass();
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312 if (element_klass != NULL
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313 && (Klass::cast(element_klass)->oop_is_instance() ||
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314 Klass::cast(element_klass)->oop_is_javaArray())) {
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315 comp_mirror = Klass::cast(element_klass)->java_mirror();
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316 assert(comp_mirror.not_null(), "must have element mirror");
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317 }
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318 // else some object array internal to the VM, like systemObjArrayKlassObj
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319 }
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320 if (comp_mirror.not_null()) {
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321 // Two-way link between the array klass and its component mirror:
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322 arrayKlass::cast(k->as_klassOop())->set_component_mirror(comp_mirror());
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323 set_array_klass(comp_mirror(), k->as_klassOop());
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324 }
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325 }
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326 return mirror();
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327 } else {
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328 return NULL;
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329 }
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330 }
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331
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332
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333 oop java_lang_Class::create_basic_type_mirror(const char* basic_type_name, BasicType type, TRAPS) {
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334 // This should be improved by adding a field at the Java level or by
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335 // introducing a new VM klass (see comment in ClassFileParser)
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336 oop java_class = instanceKlass::cast(SystemDictionary::class_klass())->allocate_permanent_instance(CHECK_0);
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337 if (type != T_VOID) {
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338 klassOop aklass = Universe::typeArrayKlassObj(type);
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339 assert(aklass != NULL, "correct bootstrap");
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340 set_array_klass(java_class, aklass);
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341 }
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342 return java_class;
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343 }
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344
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345
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346 klassOop java_lang_Class::as_klassOop(oop java_class) {
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347 //%note memory_2
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348 klassOop k = klassOop(java_class->obj_field(klass_offset));
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349 assert(k == NULL || k->is_klass(), "type check");
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350 return k;
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351 }
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352
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353
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354 klassOop java_lang_Class::array_klass(oop java_class) {
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355 klassOop k = klassOop(java_class->obj_field(array_klass_offset));
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356 assert(k == NULL || k->is_klass() && Klass::cast(k)->oop_is_javaArray(), "should be array klass");
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357 return k;
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358 }
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359
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360
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361 void java_lang_Class::set_array_klass(oop java_class, klassOop klass) {
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362 assert(klass->is_klass() && Klass::cast(klass)->oop_is_javaArray(), "should be array klass");
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|
363 java_class->obj_field_put(array_klass_offset, klass);
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|
364 }
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|
|
365
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|
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366
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|
|
367 methodOop java_lang_Class::resolved_constructor(oop java_class) {
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|
368 oop constructor = java_class->obj_field(resolved_constructor_offset);
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369 assert(constructor == NULL || constructor->is_method(), "should be method");
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|
370 return methodOop(constructor);
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|
|
371 }
|
|
|
372
|
|
|
373
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|
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374 void java_lang_Class::set_resolved_constructor(oop java_class, methodOop constructor) {
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|
375 assert(constructor->is_method(), "should be method");
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|
376 java_class->obj_field_put(resolved_constructor_offset, constructor);
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|
|
377 }
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|
|
378
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|
|
379
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|
|
380 bool java_lang_Class::is_primitive(oop java_class) {
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|
381 klassOop k = klassOop(java_class->obj_field(klass_offset));
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|
382 return k == NULL;
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|
|
383 }
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|
|
384
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|
385
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|
386 BasicType java_lang_Class::primitive_type(oop java_class) {
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|
387 assert(java_lang_Class::is_primitive(java_class), "just checking");
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|
388 klassOop ak = klassOop(java_class->obj_field(array_klass_offset));
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|
389 BasicType type = T_VOID;
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|
|
390 if (ak != NULL) {
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|
391 // Note: create_basic_type_mirror above initializes ak to a non-null value.
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392 type = arrayKlass::cast(ak)->element_type();
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|
393 } else {
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394 assert(java_class == Universe::void_mirror(), "only valid non-array primitive");
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|
|
395 }
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|
|
396 assert(Universe::java_mirror(type) == java_class, "must be consistent");
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|
|
397 return type;
|
|
|
398 }
|
|
|
399
|
|
|
400
|
|
|
401 oop java_lang_Class::primitive_mirror(BasicType t) {
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|
|
402 oop mirror = Universe::java_mirror(t);
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|
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403 assert(mirror != NULL && mirror->is_a(SystemDictionary::class_klass()), "must be a Class");
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|
|
404 assert(java_lang_Class::is_primitive(mirror), "must be primitive");
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|
|
405 return mirror;
|
|
|
406 }
|
|
|
407
|
|
|
408 bool java_lang_Class::offsets_computed = false;
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|
|
409 int java_lang_Class::classRedefinedCount_offset = -1;
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|
|
410
|
|
|
411 void java_lang_Class::compute_offsets() {
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|
|
412 assert(!offsets_computed, "offsets should be initialized only once");
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|
|
413 offsets_computed = true;
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|
|
414
|
|
|
415 klassOop k = SystemDictionary::class_klass();
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|
|
416 // The classRedefinedCount field is only present starting in 1.5,
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|
|
417 // so don't go fatal.
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|
|
418 COMPUTE_OPTIONAL_OFFSET("java.lang.Class", classRedefinedCount_offset,
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|
|
419 k, vmSymbols::classRedefinedCount_name(), vmSymbols::int_signature());
|
|
|
420 }
|
|
|
421
|
|
|
422 int java_lang_Class::classRedefinedCount(oop the_class_mirror) {
|
|
|
423 if (!JDK_Version::is_gte_jdk15x_version()
|
|
|
424 || classRedefinedCount_offset == -1) {
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|
|
425 // The classRedefinedCount field is only present starting in 1.5.
|
|
|
426 // If we don't have an offset for it then just return -1 as a marker.
|
|
|
427 return -1;
|
|
|
428 }
|
|
|
429
|
|
|
430 return the_class_mirror->int_field(classRedefinedCount_offset);
|
|
|
431 }
|
|
|
432
|
|
|
433 void java_lang_Class::set_classRedefinedCount(oop the_class_mirror, int value) {
|
|
|
434 if (!JDK_Version::is_gte_jdk15x_version()
|
|
|
435 || classRedefinedCount_offset == -1) {
|
|
|
436 // The classRedefinedCount field is only present starting in 1.5.
|
|
|
437 // If we don't have an offset for it then nothing to set.
|
|
|
438 return;
|
|
|
439 }
|
|
|
440
|
|
|
441 the_class_mirror->int_field_put(classRedefinedCount_offset, value);
|
|
|
442 }
|
|
|
443
|
|
|
444
|
|
|
445 // Note: JDK1.1 and before had a privateInfo_offset field which was used for the
|
|
|
446 // platform thread structure, and a eetop offset which was used for thread
|
|
|
447 // local storage (and unused by the HotSpot VM). In JDK1.2 the two structures
|
|
|
448 // merged, so in the HotSpot VM we just use the eetop field for the thread
|
|
|
449 // instead of the privateInfo_offset.
|
|
|
450 //
|
|
|
451 // Note: The stackSize field is only present starting in 1.4.
|
|
|
452
|
|
|
453 int java_lang_Thread::_name_offset = 0;
|
|
|
454 int java_lang_Thread::_group_offset = 0;
|
|
|
455 int java_lang_Thread::_contextClassLoader_offset = 0;
|
|
|
456 int java_lang_Thread::_inheritedAccessControlContext_offset = 0;
|
|
|
457 int java_lang_Thread::_priority_offset = 0;
|
|
|
458 int java_lang_Thread::_eetop_offset = 0;
|
|
|
459 int java_lang_Thread::_daemon_offset = 0;
|
|
|
460 int java_lang_Thread::_stillborn_offset = 0;
|
|
|
461 int java_lang_Thread::_stackSize_offset = 0;
|
|
|
462 int java_lang_Thread::_tid_offset = 0;
|
|
|
463 int java_lang_Thread::_thread_status_offset = 0;
|
|
|
464 int java_lang_Thread::_park_blocker_offset = 0;
|
|
|
465 int java_lang_Thread::_park_event_offset = 0 ;
|
|
|
466
|
|
|
467
|
|
|
468 void java_lang_Thread::compute_offsets() {
|
|
|
469 assert(_group_offset == 0, "offsets should be initialized only once");
|
|
|
470
|
|
|
471 klassOop k = SystemDictionary::thread_klass();
|
|
|
472 COMPUTE_OFFSET("java.lang.Thread", _name_offset, k, vmSymbols::name_name(), vmSymbols::char_array_signature());
|
|
|
473 COMPUTE_OFFSET("java.lang.Thread", _group_offset, k, vmSymbols::group_name(), vmSymbols::threadgroup_signature());
|
|
|
474 COMPUTE_OFFSET("java.lang.Thread", _contextClassLoader_offset, k, vmSymbols::contextClassLoader_name(), vmSymbols::classloader_signature());
|
|
|
475 COMPUTE_OFFSET("java.lang.Thread", _inheritedAccessControlContext_offset, k, vmSymbols::inheritedAccessControlContext_name(), vmSymbols::accesscontrolcontext_signature());
|
|
|
476 COMPUTE_OFFSET("java.lang.Thread", _priority_offset, k, vmSymbols::priority_name(), vmSymbols::int_signature());
|
|
|
477 COMPUTE_OFFSET("java.lang.Thread", _daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
|
|
|
478 COMPUTE_OFFSET("java.lang.Thread", _eetop_offset, k, vmSymbols::eetop_name(), vmSymbols::long_signature());
|
|
|
479 COMPUTE_OFFSET("java.lang.Thread", _stillborn_offset, k, vmSymbols::stillborn_name(), vmSymbols::bool_signature());
|
|
|
480 // The stackSize field is only present starting in 1.4, so don't go fatal.
|
|
|
481 COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _stackSize_offset, k, vmSymbols::stackSize_name(), vmSymbols::long_signature());
|
|
|
482 // The tid and thread_status fields are only present starting in 1.5, so don't go fatal.
|
|
|
483 COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _tid_offset, k, vmSymbols::thread_id_name(), vmSymbols::long_signature());
|
|
|
484 COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _thread_status_offset, k, vmSymbols::thread_status_name(), vmSymbols::int_signature());
|
|
|
485 // The parkBlocker field is only present starting in 1.6, so don't go fatal.
|
|
|
486 COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _park_blocker_offset, k, vmSymbols::park_blocker_name(), vmSymbols::object_signature());
|
|
|
487 COMPUTE_OPTIONAL_OFFSET("java.lang.Thread", _park_event_offset, k, vmSymbols::park_event_name(),
|
|
|
488 vmSymbols::long_signature());
|
|
|
489 }
|
|
|
490
|
|
|
491
|
|
|
492 JavaThread* java_lang_Thread::thread(oop java_thread) {
|
|
|
493 return (JavaThread*) java_thread->obj_field(_eetop_offset);
|
|
|
494 }
|
|
|
495
|
|
|
496
|
|
|
497 void java_lang_Thread::set_thread(oop java_thread, JavaThread* thread) {
|
|
|
498 // We are storing a JavaThread* (malloc'ed data) into a long field in the thread
|
|
|
499 // object. The store has to be 64-bit wide so we use a pointer store, but we
|
|
|
500 // cannot call oopDesc::obj_field_put since it includes a write barrier!
|
|
|
501 oop* addr = java_thread->obj_field_addr(_eetop_offset);
|
|
|
502 *addr = (oop) thread;
|
|
|
503 }
|
|
|
504
|
|
|
505
|
|
|
506 typeArrayOop java_lang_Thread::name(oop java_thread) {
|
|
|
507 oop name = java_thread->obj_field(_name_offset);
|
|
|
508 assert(name == NULL || (name->is_typeArray() && typeArrayKlass::cast(name->klass())->element_type() == T_CHAR), "just checking");
|
|
|
509 return typeArrayOop(name);
|
|
|
510 }
|
|
|
511
|
|
|
512
|
|
|
513 void java_lang_Thread::set_name(oop java_thread, typeArrayOop name) {
|
|
|
514 assert(java_thread->obj_field(_name_offset) == NULL, "name should be NULL");
|
|
|
515 java_thread->obj_field_put(_name_offset, name);
|
|
|
516 }
|
|
|
517
|
|
|
518
|
|
|
519 ThreadPriority java_lang_Thread::priority(oop java_thread) {
|
|
|
520 return (ThreadPriority)java_thread->int_field(_priority_offset);
|
|
|
521 }
|
|
|
522
|
|
|
523
|
|
|
524 void java_lang_Thread::set_priority(oop java_thread, ThreadPriority priority) {
|
|
|
525 java_thread->int_field_put(_priority_offset, priority);
|
|
|
526 }
|
|
|
527
|
|
|
528
|
|
|
529 oop java_lang_Thread::threadGroup(oop java_thread) {
|
|
|
530 return java_thread->obj_field(_group_offset);
|
|
|
531 }
|
|
|
532
|
|
|
533
|
|
|
534 bool java_lang_Thread::is_stillborn(oop java_thread) {
|
|
|
535 return java_thread->bool_field(_stillborn_offset) != 0;
|
|
|
536 }
|
|
|
537
|
|
|
538
|
|
|
539 // We never have reason to turn the stillborn bit off
|
|
|
540 void java_lang_Thread::set_stillborn(oop java_thread) {
|
|
|
541 java_thread->bool_field_put(_stillborn_offset, true);
|
|
|
542 }
|
|
|
543
|
|
|
544
|
|
|
545 bool java_lang_Thread::is_alive(oop java_thread) {
|
|
|
546 JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
|
547 return (thr != NULL);
|
|
|
548 }
|
|
|
549
|
|
|
550
|
|
|
551 bool java_lang_Thread::is_daemon(oop java_thread) {
|
|
|
552 return java_thread->bool_field(_daemon_offset) != 0;
|
|
|
553 }
|
|
|
554
|
|
|
555
|
|
|
556 void java_lang_Thread::set_daemon(oop java_thread) {
|
|
|
557 java_thread->bool_field_put(_daemon_offset, true);
|
|
|
558 }
|
|
|
559
|
|
|
560 oop java_lang_Thread::context_class_loader(oop java_thread) {
|
|
|
561 return java_thread->obj_field(_contextClassLoader_offset);
|
|
|
562 }
|
|
|
563
|
|
|
564 oop java_lang_Thread::inherited_access_control_context(oop java_thread) {
|
|
|
565 return java_thread->obj_field(_inheritedAccessControlContext_offset);
|
|
|
566 }
|
|
|
567
|
|
|
568
|
|
|
569 jlong java_lang_Thread::stackSize(oop java_thread) {
|
|
|
570 // The stackSize field is only present starting in 1.4
|
|
|
571 if (_stackSize_offset > 0) {
|
|
|
572 assert(JDK_Version::is_gte_jdk14x_version(), "sanity check");
|
|
|
573 return java_thread->long_field(_stackSize_offset);
|
|
|
574 } else {
|
|
|
575 return 0;
|
|
|
576 }
|
|
|
577 }
|
|
|
578
|
|
|
579 // Write the thread status value to threadStatus field in java.lang.Thread java class.
|
|
|
580 void java_lang_Thread::set_thread_status(oop java_thread,
|
|
|
581 java_lang_Thread::ThreadStatus status) {
|
|
|
582 assert(JavaThread::current()->thread_state() == _thread_in_vm, "Java Thread is not running in vm");
|
|
|
583 // The threadStatus is only present starting in 1.5
|
|
|
584 if (_thread_status_offset > 0) {
|
|
|
585 java_thread->int_field_put(_thread_status_offset, status);
|
|
|
586 }
|
|
|
587 }
|
|
|
588
|
|
|
589 // Read thread status value from threadStatus field in java.lang.Thread java class.
|
|
|
590 java_lang_Thread::ThreadStatus java_lang_Thread::get_thread_status(oop java_thread) {
|
|
|
591 assert(Thread::current()->is_VM_thread() ||
|
|
|
592 JavaThread::current()->thread_state() == _thread_in_vm,
|
|
|
593 "Java Thread is not running in vm");
|
|
|
594 // The threadStatus is only present starting in 1.5
|
|
|
595 if (_thread_status_offset > 0) {
|
|
|
596 return (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
|
|
|
597 } else {
|
|
|
598 // All we can easily figure out is if it is alive, but that is
|
|
|
599 // enough info for a valid unknown status.
|
|
|
600 // These aren't restricted to valid set ThreadStatus values, so
|
|
|
601 // use JVMTI values and cast.
|
|
|
602 JavaThread* thr = java_lang_Thread::thread(java_thread);
|
|
|
603 if (thr == NULL) {
|
|
|
604 // the thread hasn't run yet or is in the process of exiting
|
|
|
605 return NEW;
|
|
|
606 }
|
|
|
607 return (java_lang_Thread::ThreadStatus)JVMTI_THREAD_STATE_ALIVE;
|
|
|
608 }
|
|
|
609 }
|
|
|
610
|
|
|
611
|
|
|
612 jlong java_lang_Thread::thread_id(oop java_thread) {
|
|
|
613 // The thread ID field is only present starting in 1.5
|
|
|
614 if (_tid_offset > 0) {
|
|
|
615 return java_thread->long_field(_tid_offset);
|
|
|
616 } else {
|
|
|
617 return 0;
|
|
|
618 }
|
|
|
619 }
|
|
|
620
|
|
|
621 oop java_lang_Thread::park_blocker(oop java_thread) {
|
|
|
622 assert(JDK_Version::supports_thread_park_blocker() && _park_blocker_offset != 0,
|
|
|
623 "Must support parkBlocker field");
|
|
|
624
|
|
|
625 if (_park_blocker_offset > 0) {
|
|
|
626 return java_thread->obj_field(_park_blocker_offset);
|
|
|
627 }
|
|
|
628
|
|
|
629 return NULL;
|
|
|
630 }
|
|
|
631
|
|
|
632 jlong java_lang_Thread::park_event(oop java_thread) {
|
|
|
633 if (_park_event_offset > 0) {
|
|
|
634 return java_thread->long_field(_park_event_offset);
|
|
|
635 }
|
|
|
636 return 0;
|
|
|
637 }
|
|
|
638
|
|
|
639 bool java_lang_Thread::set_park_event(oop java_thread, jlong ptr) {
|
|
|
640 if (_park_event_offset > 0) {
|
|
|
641 java_thread->long_field_put(_park_event_offset, ptr);
|
|
|
642 return true;
|
|
|
643 }
|
|
|
644 return false;
|
|
|
645 }
|
|
|
646
|
|
|
647
|
|
|
648 const char* java_lang_Thread::thread_status_name(oop java_thread) {
|
|
|
649 assert(JDK_Version::is_gte_jdk15x_version() && _thread_status_offset != 0, "Must have thread status");
|
|
|
650 ThreadStatus status = (java_lang_Thread::ThreadStatus)java_thread->int_field(_thread_status_offset);
|
|
|
651 switch (status) {
|
|
|
652 case NEW : return "NEW";
|
|
|
653 case RUNNABLE : return "RUNNABLE";
|
|
|
654 case SLEEPING : return "TIMED_WAITING (sleeping)";
|
|
|
655 case IN_OBJECT_WAIT : return "WAITING (on object monitor)";
|
|
|
656 case IN_OBJECT_WAIT_TIMED : return "TIMED_WAITING (on object monitor)";
|
|
|
657 case PARKED : return "WAITING (parking)";
|
|
|
658 case PARKED_TIMED : return "TIMED_WAITING (parking)";
|
|
|
659 case BLOCKED_ON_MONITOR_ENTER : return "BLOCKED (on object monitor)";
|
|
|
660 case TERMINATED : return "TERMINATED";
|
|
|
661 default : return "UNKNOWN";
|
|
|
662 };
|
|
|
663 }
|
|
|
664 int java_lang_ThreadGroup::_parent_offset = 0;
|
|
|
665 int java_lang_ThreadGroup::_name_offset = 0;
|
|
|
666 int java_lang_ThreadGroup::_threads_offset = 0;
|
|
|
667 int java_lang_ThreadGroup::_groups_offset = 0;
|
|
|
668 int java_lang_ThreadGroup::_maxPriority_offset = 0;
|
|
|
669 int java_lang_ThreadGroup::_destroyed_offset = 0;
|
|
|
670 int java_lang_ThreadGroup::_daemon_offset = 0;
|
|
|
671 int java_lang_ThreadGroup::_vmAllowSuspension_offset = 0;
|
|
|
672 int java_lang_ThreadGroup::_nthreads_offset = 0;
|
|
|
673 int java_lang_ThreadGroup::_ngroups_offset = 0;
|
|
|
674
|
|
|
675 oop java_lang_ThreadGroup::parent(oop java_thread_group) {
|
|
|
676 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
677 return java_thread_group->obj_field(_parent_offset);
|
|
|
678 }
|
|
|
679
|
|
|
680 // ("name as oop" accessor is not necessary)
|
|
|
681
|
|
|
682 typeArrayOop java_lang_ThreadGroup::name(oop java_thread_group) {
|
|
|
683 oop name = java_thread_group->obj_field(_name_offset);
|
|
|
684 // ThreadGroup.name can be null
|
|
|
685 return name == NULL ? (typeArrayOop)NULL : java_lang_String::value(name);
|
|
|
686 }
|
|
|
687
|
|
|
688 int java_lang_ThreadGroup::nthreads(oop java_thread_group) {
|
|
|
689 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
690 return java_thread_group->int_field(_nthreads_offset);
|
|
|
691 }
|
|
|
692
|
|
|
693 objArrayOop java_lang_ThreadGroup::threads(oop java_thread_group) {
|
|
|
694 oop threads = java_thread_group->obj_field(_threads_offset);
|
|
|
695 assert(threads != NULL, "threadgroups should have threads");
|
|
|
696 assert(threads->is_objArray(), "just checking"); // Todo: Add better type checking code
|
|
|
697 return objArrayOop(threads);
|
|
|
698 }
|
|
|
699
|
|
|
700 int java_lang_ThreadGroup::ngroups(oop java_thread_group) {
|
|
|
701 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
702 return java_thread_group->int_field(_ngroups_offset);
|
|
|
703 }
|
|
|
704
|
|
|
705 objArrayOop java_lang_ThreadGroup::groups(oop java_thread_group) {
|
|
|
706 oop groups = java_thread_group->obj_field(_groups_offset);
|
|
|
707 assert(groups == NULL || groups->is_objArray(), "just checking"); // Todo: Add better type checking code
|
|
|
708 return objArrayOop(groups);
|
|
|
709 }
|
|
|
710
|
|
|
711 ThreadPriority java_lang_ThreadGroup::maxPriority(oop java_thread_group) {
|
|
|
712 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
713 return (ThreadPriority) java_thread_group->int_field(_maxPriority_offset);
|
|
|
714 }
|
|
|
715
|
|
|
716 bool java_lang_ThreadGroup::is_destroyed(oop java_thread_group) {
|
|
|
717 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
718 return java_thread_group->bool_field(_destroyed_offset) != 0;
|
|
|
719 }
|
|
|
720
|
|
|
721 bool java_lang_ThreadGroup::is_daemon(oop java_thread_group) {
|
|
|
722 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
723 return java_thread_group->bool_field(_daemon_offset) != 0;
|
|
|
724 }
|
|
|
725
|
|
|
726 bool java_lang_ThreadGroup::is_vmAllowSuspension(oop java_thread_group) {
|
|
|
727 assert(java_thread_group->is_oop(), "thread group must be oop");
|
|
|
728 return java_thread_group->bool_field(_vmAllowSuspension_offset) != 0;
|
|
|
729 }
|
|
|
730
|
|
|
731 void java_lang_ThreadGroup::compute_offsets() {
|
|
|
732 assert(_parent_offset == 0, "offsets should be initialized only once");
|
|
|
733
|
|
|
734 klassOop k = SystemDictionary::threadGroup_klass();
|
|
|
735
|
|
|
736 COMPUTE_OFFSET("java.lang.ThreadGroup", _parent_offset, k, vmSymbols::parent_name(), vmSymbols::threadgroup_signature());
|
|
|
737 COMPUTE_OFFSET("java.lang.ThreadGroup", _name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
|
738 COMPUTE_OFFSET("java.lang.ThreadGroup", _threads_offset, k, vmSymbols::threads_name(), vmSymbols::thread_array_signature());
|
|
|
739 COMPUTE_OFFSET("java.lang.ThreadGroup", _groups_offset, k, vmSymbols::groups_name(), vmSymbols::threadgroup_array_signature());
|
|
|
740 COMPUTE_OFFSET("java.lang.ThreadGroup", _maxPriority_offset, k, vmSymbols::maxPriority_name(), vmSymbols::int_signature());
|
|
|
741 COMPUTE_OFFSET("java.lang.ThreadGroup", _destroyed_offset, k, vmSymbols::destroyed_name(), vmSymbols::bool_signature());
|
|
|
742 COMPUTE_OFFSET("java.lang.ThreadGroup", _daemon_offset, k, vmSymbols::daemon_name(), vmSymbols::bool_signature());
|
|
|
743 COMPUTE_OFFSET("java.lang.ThreadGroup", _vmAllowSuspension_offset, k, vmSymbols::vmAllowSuspension_name(), vmSymbols::bool_signature());
|
|
|
744 COMPUTE_OFFSET("java.lang.ThreadGroup", _nthreads_offset, k, vmSymbols::nthreads_name(), vmSymbols::int_signature());
|
|
|
745 COMPUTE_OFFSET("java.lang.ThreadGroup", _ngroups_offset, k, vmSymbols::ngroups_name(), vmSymbols::int_signature());
|
|
|
746 }
|
|
|
747
|
|
|
748 oop java_lang_Throwable::backtrace(oop throwable) {
|
|
|
749 return throwable->obj_field_acquire(backtrace_offset);
|
|
|
750 }
|
|
|
751
|
|
|
752
|
|
|
753 void java_lang_Throwable::set_backtrace(oop throwable, oop value) {
|
|
|
754 throwable->release_obj_field_put(backtrace_offset, value);
|
|
|
755 }
|
|
|
756
|
|
|
757
|
|
|
758 oop java_lang_Throwable::message(oop throwable) {
|
|
|
759 return throwable->obj_field(detailMessage_offset);
|
|
|
760 }
|
|
|
761
|
|
|
762
|
|
|
763 oop java_lang_Throwable::message(Handle throwable) {
|
|
|
764 return throwable->obj_field(detailMessage_offset);
|
|
|
765 }
|
|
|
766
|
|
|
767
|
|
|
768 void java_lang_Throwable::set_message(oop throwable, oop value) {
|
|
|
769 throwable->obj_field_put(detailMessage_offset, value);
|
|
|
770 }
|
|
|
771
|
|
|
772
|
|
|
773 void java_lang_Throwable::clear_stacktrace(oop throwable) {
|
|
|
774 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
|
|
|
775 throwable->obj_field_put(stackTrace_offset, NULL);
|
|
|
776 }
|
|
|
777
|
|
|
778
|
|
|
779 void java_lang_Throwable::print(oop throwable, outputStream* st) {
|
|
|
780 ResourceMark rm;
|
|
|
781 klassOop k = throwable->klass();
|
|
|
782 assert(k != NULL, "just checking");
|
|
|
783 st->print("%s", instanceKlass::cast(k)->external_name());
|
|
|
784 oop msg = message(throwable);
|
|
|
785 if (msg != NULL) {
|
|
|
786 st->print(": %s", java_lang_String::as_utf8_string(msg));
|
|
|
787 }
|
|
|
788 }
|
|
|
789
|
|
|
790
|
|
|
791 void java_lang_Throwable::print(Handle throwable, outputStream* st) {
|
|
|
792 ResourceMark rm;
|
|
|
793 klassOop k = throwable->klass();
|
|
|
794 assert(k != NULL, "just checking");
|
|
|
795 st->print("%s", instanceKlass::cast(k)->external_name());
|
|
|
796 oop msg = message(throwable);
|
|
|
797 if (msg != NULL) {
|
|
|
798 st->print(": %s", java_lang_String::as_utf8_string(msg));
|
|
|
799 }
|
|
|
800 }
|
|
|
801
|
|
|
802 // Print stack trace element to resource allocated buffer
|
|
|
803 char* java_lang_Throwable::print_stack_element_to_buffer(methodOop method, int bci) {
|
|
|
804 // Get strings and string lengths
|
|
|
805 instanceKlass* klass = instanceKlass::cast(method->method_holder());
|
|
|
806 const char* klass_name = klass->external_name();
|
|
|
807 int buf_len = (int)strlen(klass_name);
|
|
|
808 char* source_file_name;
|
|
|
809 if (klass->source_file_name() == NULL) {
|
|
|
810 source_file_name = NULL;
|
|
|
811 } else {
|
|
|
812 source_file_name = klass->source_file_name()->as_C_string();
|
|
|
813 buf_len += (int)strlen(source_file_name);
|
|
|
814 }
|
|
|
815 char* method_name = method->name()->as_C_string();
|
|
|
816 buf_len += (int)strlen(method_name);
|
|
|
817
|
|
|
818 // Allocate temporary buffer with extra space for formatting and line number
|
|
|
819 char* buf = NEW_RESOURCE_ARRAY(char, buf_len + 64);
|
|
|
820
|
|
|
821 // Print stack trace line in buffer
|
|
|
822 sprintf(buf, "\tat %s.%s", klass_name, method_name);
|
|
|
823 if (method->is_native()) {
|
|
|
824 strcat(buf, "(Native Method)");
|
|
|
825 } else {
|
|
|
826 int line_number = method->line_number_from_bci(bci);
|
|
|
827 if (source_file_name != NULL && (line_number != -1)) {
|
|
|
828 // Sourcename and linenumber
|
|
|
829 sprintf(buf + (int)strlen(buf), "(%s:%d)", source_file_name, line_number);
|
|
|
830 } else if (source_file_name != NULL) {
|
|
|
831 // Just sourcename
|
|
|
832 sprintf(buf + (int)strlen(buf), "(%s)", source_file_name);
|
|
|
833 } else {
|
|
|
834 // Neither soucename and linenumber
|
|
|
835 sprintf(buf + (int)strlen(buf), "(Unknown Source)");
|
|
|
836 }
|
|
|
837 nmethod* nm = method->code();
|
|
|
838 if (WizardMode && nm != NULL) {
|
|
|
839 sprintf(buf + (int)strlen(buf), "(nmethod %#x)", nm);
|
|
|
840 }
|
|
|
841 }
|
|
|
842
|
|
|
843 return buf;
|
|
|
844 }
|
|
|
845
|
|
|
846
|
|
|
847 void java_lang_Throwable::print_stack_element(Handle stream, methodOop method, int bci) {
|
|
|
848 ResourceMark rm;
|
|
|
849 char* buf = print_stack_element_to_buffer(method, bci);
|
|
|
850 print_to_stream(stream, buf);
|
|
|
851 }
|
|
|
852
|
|
|
853 void java_lang_Throwable::print_stack_element(outputStream *st, methodOop method, int bci) {
|
|
|
854 ResourceMark rm;
|
|
|
855 char* buf = print_stack_element_to_buffer(method, bci);
|
|
|
856 st->print_cr("%s", buf);
|
|
|
857 }
|
|
|
858
|
|
|
859 void java_lang_Throwable::print_to_stream(Handle stream, const char* str) {
|
|
|
860 if (stream.is_null()) {
|
|
|
861 tty->print_cr("%s", str);
|
|
|
862 } else {
|
|
|
863 EXCEPTION_MARK;
|
|
|
864 JavaValue result(T_VOID);
|
|
|
865 Handle arg (THREAD, oopFactory::new_charArray(str, THREAD));
|
|
|
866 if (!HAS_PENDING_EXCEPTION) {
|
|
|
867 JavaCalls::call_virtual(&result,
|
|
|
868 stream,
|
|
|
869 KlassHandle(THREAD, stream->klass()),
|
|
|
870 vmSymbolHandles::println_name(),
|
|
|
871 vmSymbolHandles::char_array_void_signature(),
|
|
|
872 arg,
|
|
|
873 THREAD);
|
|
|
874 }
|
|
|
875 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
|
|
|
876 if (HAS_PENDING_EXCEPTION) CLEAR_PENDING_EXCEPTION;
|
|
|
877 }
|
|
|
878
|
|
|
879 }
|
|
|
880
|
|
|
881
|
|
|
882 const char* java_lang_Throwable::no_stack_trace_message() {
|
|
|
883 return "\t<<no stack trace available>>";
|
|
|
884 }
|
|
|
885
|
|
|
886
|
|
|
887 // Currently used only for exceptions occurring during startup
|
|
|
888 void java_lang_Throwable::print_stack_trace(oop throwable, outputStream* st) {
|
|
|
889 Thread *THREAD = Thread::current();
|
|
|
890 Handle h_throwable(THREAD, throwable);
|
|
|
891 while (h_throwable.not_null()) {
|
|
|
892 objArrayHandle result (THREAD, objArrayOop(backtrace(h_throwable())));
|
|
|
893 if (result.is_null()) {
|
|
|
894 st->print_cr(no_stack_trace_message());
|
|
|
895 return;
|
|
|
896 }
|
|
|
897
|
|
|
898 while (result.not_null()) {
|
|
|
899 objArrayHandle methods (THREAD,
|
|
|
900 objArrayOop(result->obj_at(trace_methods_offset)));
|
|
|
901 typeArrayHandle bcis (THREAD,
|
|
|
902 typeArrayOop(result->obj_at(trace_bcis_offset)));
|
|
|
903
|
|
|
904 if (methods.is_null() || bcis.is_null()) {
|
|
|
905 st->print_cr(no_stack_trace_message());
|
|
|
906 return;
|
|
|
907 }
|
|
|
908
|
|
|
909 int length = methods()->length();
|
|
|
910 for (int index = 0; index < length; index++) {
|
|
|
911 methodOop method = methodOop(methods()->obj_at(index));
|
|
|
912 if (method == NULL) goto handle_cause;
|
|
|
913 int bci = bcis->ushort_at(index);
|
|
|
914 print_stack_element(st, method, bci);
|
|
|
915 }
|
|
|
916 result = objArrayHandle(THREAD, objArrayOop(result->obj_at(trace_next_offset)));
|
|
|
917 }
|
|
|
918 handle_cause:
|
|
|
919 {
|
|
|
920 EXCEPTION_MARK;
|
|
|
921 JavaValue result(T_OBJECT);
|
|
|
922 JavaCalls::call_virtual(&result,
|
|
|
923 h_throwable,
|
|
|
924 KlassHandle(THREAD, h_throwable->klass()),
|
|
|
925 vmSymbolHandles::getCause_name(),
|
|
|
926 vmSymbolHandles::void_throwable_signature(),
|
|
|
927 THREAD);
|
|
|
928 // Ignore any exceptions. we are in the middle of exception handling. Same as classic VM.
|
|
|
929 if (HAS_PENDING_EXCEPTION) {
|
|
|
930 CLEAR_PENDING_EXCEPTION;
|
|
|
931 h_throwable = Handle();
|
|
|
932 } else {
|
|
|
933 h_throwable = Handle(THREAD, (oop) result.get_jobject());
|
|
|
934 if (h_throwable.not_null()) {
|
|
|
935 st->print("Caused by: ");
|
|
|
936 print(h_throwable, st);
|
|
|
937 st->cr();
|
|
|
938 }
|
|
|
939 }
|
|
|
940 }
|
|
|
941 }
|
|
|
942 }
|
|
|
943
|
|
|
944
|
|
|
945 void java_lang_Throwable::print_stack_trace(oop throwable, oop print_stream) {
|
|
|
946 // Note: this is no longer used in Merlin, but we support it for compatibility.
|
|
|
947 Thread *thread = Thread::current();
|
|
|
948 Handle stream(thread, print_stream);
|
|
|
949 objArrayHandle result (thread, objArrayOop(backtrace(throwable)));
|
|
|
950 if (result.is_null()) {
|
|
|
951 print_to_stream(stream, no_stack_trace_message());
|
|
|
952 return;
|
|
|
953 }
|
|
|
954
|
|
|
955 while (result.not_null()) {
|
|
|
956 objArrayHandle methods (thread,
|
|
|
957 objArrayOop(result->obj_at(trace_methods_offset)));
|
|
|
958 typeArrayHandle bcis (thread,
|
|
|
959 typeArrayOop(result->obj_at(trace_bcis_offset)));
|
|
|
960
|
|
|
961 if (methods.is_null() || bcis.is_null()) {
|
|
|
962 print_to_stream(stream, no_stack_trace_message());
|
|
|
963 return;
|
|
|
964 }
|
|
|
965
|
|
|
966 int length = methods()->length();
|
|
|
967 for (int index = 0; index < length; index++) {
|
|
|
968 methodOop method = methodOop(methods()->obj_at(index));
|
|
|
969 if (method == NULL) return;
|
|
|
970 int bci = bcis->ushort_at(index);
|
|
|
971 print_stack_element(stream, method, bci);
|
|
|
972 }
|
|
|
973 result = objArrayHandle(thread, objArrayOop(result->obj_at(trace_next_offset)));
|
|
|
974 }
|
|
|
975 }
|
|
|
976
|
|
|
977 // This class provides a simple wrapper over the internal structure of
|
|
|
978 // exception backtrace to insulate users of the backtrace from needing
|
|
|
979 // to know what it looks like.
|
|
|
980 class BacktraceBuilder: public StackObj {
|
|
|
981 private:
|
|
|
982 Handle _backtrace;
|
|
|
983 objArrayOop _head;
|
|
|
984 objArrayOop _methods;
|
|
|
985 typeArrayOop _bcis;
|
|
|
986 int _index;
|
|
|
987 bool _dirty;
|
|
|
988 bool _done;
|
|
|
989 No_Safepoint_Verifier _nsv;
|
|
|
990
|
|
|
991 public:
|
|
|
992
|
|
|
993 enum {
|
|
|
994 trace_methods_offset = java_lang_Throwable::trace_methods_offset,
|
|
|
995 trace_bcis_offset = java_lang_Throwable::trace_bcis_offset,
|
|
|
996 trace_next_offset = java_lang_Throwable::trace_next_offset,
|
|
|
997 trace_size = java_lang_Throwable::trace_size,
|
|
|
998 trace_chunk_size = java_lang_Throwable::trace_chunk_size
|
|
|
999 };
|
|
|
1000
|
|
|
1001 // constructor for new backtrace
|
|
|
1002 BacktraceBuilder(TRAPS): _methods(NULL), _bcis(NULL), _head(NULL) {
|
|
|
1003 expand(CHECK);
|
|
|
1004 _backtrace = _head;
|
|
|
1005 _index = 0;
|
|
|
1006 _dirty = false;
|
|
|
1007 _done = false;
|
|
|
1008 }
|
|
|
1009
|
|
|
1010 void flush() {
|
|
|
1011 if (_dirty && _methods != NULL) {
|
|
|
1012 BarrierSet* bs = Universe::heap()->barrier_set();
|
|
|
1013 assert(bs->has_write_ref_array_opt(), "Barrier set must have ref array opt");
|
|
|
1014 bs->write_ref_array(MemRegion((HeapWord*)_methods->obj_at_addr(0),
|
|
|
1015 _methods->length() * HeapWordsPerOop));
|
|
|
1016 _dirty = false;
|
|
|
1017 }
|
|
|
1018 }
|
|
|
1019
|
|
|
1020 void expand(TRAPS) {
|
|
|
1021 flush();
|
|
|
1022
|
|
|
1023 objArrayHandle old_head(THREAD, _head);
|
|
|
1024 Pause_No_Safepoint_Verifier pnsv(&_nsv);
|
|
|
1025
|
|
|
1026 objArrayOop head = oopFactory::new_objectArray(trace_size, CHECK);
|
|
|
1027 objArrayHandle new_head(THREAD, head);
|
|
|
1028
|
|
|
1029 objArrayOop methods = oopFactory::new_objectArray(trace_chunk_size, CHECK);
|
|
|
1030 objArrayHandle new_methods(THREAD, methods);
|
|
|
1031
|
|
|
1032 typeArrayOop bcis = oopFactory::new_shortArray(trace_chunk_size, CHECK);
|
|
|
1033 typeArrayHandle new_bcis(THREAD, bcis);
|
|
|
1034
|
|
|
1035 if (!old_head.is_null()) {
|
|
|
1036 old_head->obj_at_put(trace_next_offset, new_head());
|
|
|
1037 }
|
|
|
1038 new_head->obj_at_put(trace_methods_offset, new_methods());
|
|
|
1039 new_head->obj_at_put(trace_bcis_offset, new_bcis());
|
|
|
1040
|
|
|
1041 _head = new_head();
|
|
|
1042 _methods = new_methods();
|
|
|
1043 _bcis = new_bcis();
|
|
|
1044 _index = 0;
|
|
|
1045 }
|
|
|
1046
|
|
|
1047 oop backtrace() {
|
|
|
1048 flush();
|
|
|
1049 return _backtrace();
|
|
|
1050 }
|
|
|
1051
|
|
|
1052 inline void push(methodOop method, short bci, TRAPS) {
|
|
|
1053 if (_index >= trace_chunk_size) {
|
|
|
1054 methodHandle mhandle(THREAD, method);
|
|
|
1055 expand(CHECK);
|
|
|
1056 method = mhandle();
|
|
|
1057 }
|
|
|
1058
|
|
|
1059 // _methods->obj_at_put(_index, method);
|
|
|
1060 *_methods->obj_at_addr(_index) = method;
|
|
|
1061 _bcis->ushort_at_put(_index, bci);
|
|
|
1062 _index++;
|
|
|
1063 _dirty = true;
|
|
|
1064 }
|
|
|
1065
|
|
|
1066 methodOop current_method() {
|
|
|
1067 assert(_index >= 0 && _index < trace_chunk_size, "out of range");
|
|
|
1068 return methodOop(_methods->obj_at(_index));
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 jushort current_bci() {
|
|
|
1072 assert(_index >= 0 && _index < trace_chunk_size, "out of range");
|
|
|
1073 return _bcis->ushort_at(_index);
|
|
|
1074 }
|
|
|
1075 };
|
|
|
1076
|
|
|
1077
|
|
|
1078 void java_lang_Throwable::fill_in_stack_trace(Handle throwable, TRAPS) {
|
|
|
1079 if (!StackTraceInThrowable) return;
|
|
|
1080 ResourceMark rm(THREAD);
|
|
|
1081
|
|
|
1082 // Start out by clearing the backtrace for this object, in case the VM
|
|
|
1083 // runs out of memory while allocating the stack trace
|
|
|
1084 set_backtrace(throwable(), NULL);
|
|
|
1085 if (JDK_Version::is_gte_jdk14x_version()) {
|
|
|
1086 // New since 1.4, clear lazily constructed Java level stacktrace if
|
|
|
1087 // refilling occurs
|
|
|
1088 clear_stacktrace(throwable());
|
|
|
1089 }
|
|
|
1090
|
|
|
1091 int max_depth = MaxJavaStackTraceDepth;
|
|
|
1092 JavaThread* thread = (JavaThread*)THREAD;
|
|
|
1093 BacktraceBuilder bt(CHECK);
|
|
|
1094
|
|
|
1095 // Instead of using vframe directly, this version of fill_in_stack_trace
|
|
|
1096 // basically handles everything by hand. This significantly improved the
|
|
|
1097 // speed of this method call up to 28.5% on Solaris sparc. 27.1% on Windows.
|
|
|
1098 // See bug 6333838 for more details.
|
|
|
1099 // The "ASSERT" here is to verify this method generates the exactly same stack
|
|
|
1100 // trace as utilizing vframe.
|
|
|
1101 #ifdef ASSERT
|
|
|
1102 vframeStream st(thread);
|
|
|
1103 methodHandle st_method(THREAD, st.method());
|
|
|
1104 #endif
|
|
|
1105 int total_count = 0;
|
|
|
1106 RegisterMap map(thread, false);
|
|
|
1107 int decode_offset = 0;
|
|
|
1108 nmethod* nm = NULL;
|
|
|
1109 bool skip_fillInStackTrace_check = false;
|
|
|
1110 bool skip_throwableInit_check = false;
|
|
|
1111
|
|
|
1112 for (frame fr = thread->last_frame(); max_depth != total_count;) {
|
|
|
1113 methodOop method = NULL;
|
|
|
1114 int bci = 0;
|
|
|
1115
|
|
|
1116 // Compiled java method case.
|
|
|
1117 if (decode_offset != 0) {
|
|
|
1118 DebugInfoReadStream stream(nm, decode_offset);
|
|
|
1119 decode_offset = stream.read_int();
|
|
|
1120 method = (methodOop)nm->oop_at(stream.read_int());
|
|
|
1121 bci = stream.read_bci();
|
|
|
1122 } else {
|
|
|
1123 if (fr.is_first_frame()) break;
|
|
|
1124 address pc = fr.pc();
|
|
|
1125 if (fr.is_interpreted_frame()) {
|
|
|
1126 intptr_t bcx = fr.interpreter_frame_bcx();
|
|
|
1127 method = fr.interpreter_frame_method();
|
|
|
1128 bci = fr.is_bci(bcx) ? bcx : method->bci_from((address)bcx);
|
|
|
1129 fr = fr.sender(&map);
|
|
|
1130 } else {
|
|
|
1131 CodeBlob* cb = fr.cb();
|
|
|
1132 // HMMM QQQ might be nice to have frame return nm as NULL if cb is non-NULL
|
|
|
1133 // but non nmethod
|
|
|
1134 fr = fr.sender(&map);
|
|
|
1135 if (cb == NULL || !cb->is_nmethod()) {
|
|
|
1136 continue;
|
|
|
1137 }
|
|
|
1138 nm = (nmethod*)cb;
|
|
|
1139 if (nm->method()->is_native()) {
|
|
|
1140 method = nm->method();
|
|
|
1141 bci = 0;
|
|
|
1142 } else {
|
|
|
1143 PcDesc* pd = nm->pc_desc_at(pc);
|
|
|
1144 decode_offset = pd->scope_decode_offset();
|
|
|
1145 // if decode_offset is not equal to 0, it will execute the
|
|
|
1146 // "compiled java method case" at the beginning of the loop.
|
|
|
1147 continue;
|
|
|
1148 }
|
|
|
1149 }
|
|
|
1150 }
|
|
|
1151 #ifdef ASSERT
|
|
|
1152 assert(st_method() == method && st.bci() == bci,
|
|
|
1153 "Wrong stack trace");
|
|
|
1154 st.next();
|
|
|
1155 // vframeStream::method isn't GC-safe so store off a copy
|
|
|
1156 // of the methodOop in case we GC.
|
|
|
1157 if (!st.at_end()) {
|
|
|
1158 st_method = st.method();
|
|
|
1159 }
|
|
|
1160 #endif
|
|
|
1161 if (!skip_fillInStackTrace_check) {
|
|
|
1162 // check "fillInStackTrace" only once, so we negate the flag
|
|
|
1163 // after the first time check.
|
|
|
1164 skip_fillInStackTrace_check = true;
|
|
|
1165 if (method->name() == vmSymbols::fillInStackTrace_name()) {
|
|
|
1166 continue;
|
|
|
1167 }
|
|
|
1168 }
|
|
|
1169 // skip <init> methods of the exceptions klass. If there is <init> methods
|
|
|
1170 // that belongs to a superclass of the exception we are going to skipping
|
|
|
1171 // them in stack trace. This is simlar to classic VM.
|
|
|
1172 if (!skip_throwableInit_check) {
|
|
|
1173 if (method->name() == vmSymbols::object_initializer_name() &&
|
|
|
1174 throwable->is_a(method->method_holder())) {
|
|
|
1175 continue;
|
|
|
1176 } else {
|
|
|
1177 // if no "Throwable.init()" method found, we stop checking it next time.
|
|
|
1178 skip_throwableInit_check = true;
|
|
|
1179 }
|
|
|
1180 }
|
|
|
1181 bt.push(method, bci, CHECK);
|
|
|
1182 total_count++;
|
|
|
1183 }
|
|
|
1184
|
|
|
1185 // Put completed stack trace into throwable object
|
|
|
1186 set_backtrace(throwable(), bt.backtrace());
|
|
|
1187 }
|
|
|
1188
|
|
|
1189 void java_lang_Throwable::fill_in_stack_trace(Handle throwable) {
|
|
|
1190 // No-op if stack trace is disabled
|
|
|
1191 if (!StackTraceInThrowable) {
|
|
|
1192 return;
|
|
|
1193 }
|
|
|
1194
|
|
|
1195 // Disable stack traces for some preallocated out of memory errors
|
|
|
1196 if (!Universe::should_fill_in_stack_trace(throwable)) {
|
|
|
1197 return;
|
|
|
1198 }
|
|
|
1199
|
|
|
1200 PRESERVE_EXCEPTION_MARK;
|
|
|
1201
|
|
|
1202 JavaThread* thread = JavaThread::active();
|
|
|
1203 fill_in_stack_trace(throwable, thread);
|
|
|
1204 // ignore exceptions thrown during stack trace filling
|
|
|
1205 CLEAR_PENDING_EXCEPTION;
|
|
|
1206 }
|
|
|
1207
|
|
|
1208 void java_lang_Throwable::allocate_backtrace(Handle throwable, TRAPS) {
|
|
|
1209 // Allocate stack trace - backtrace is created but not filled in
|
|
|
1210
|
|
|
1211 // No-op if stack trace is disabled
|
|
|
1212 if (!StackTraceInThrowable) return;
|
|
|
1213
|
|
|
1214 objArrayOop h_oop = oopFactory::new_objectArray(trace_size, CHECK);
|
|
|
1215 objArrayHandle backtrace (THREAD, h_oop);
|
|
|
1216 objArrayOop m_oop = oopFactory::new_objectArray(trace_chunk_size, CHECK);
|
|
|
1217 objArrayHandle methods (THREAD, m_oop);
|
|
|
1218 typeArrayOop b = oopFactory::new_shortArray(trace_chunk_size, CHECK);
|
|
|
1219 typeArrayHandle bcis(THREAD, b);
|
|
|
1220
|
|
|
1221 // backtrace has space for one chunk (next is NULL)
|
|
|
1222 backtrace->obj_at_put(trace_methods_offset, methods());
|
|
|
1223 backtrace->obj_at_put(trace_bcis_offset, bcis());
|
|
|
1224 set_backtrace(throwable(), backtrace());
|
|
|
1225 }
|
|
|
1226
|
|
|
1227
|
|
|
1228 void java_lang_Throwable::fill_in_stack_trace_of_preallocated_backtrace(Handle throwable) {
|
|
|
1229 // Fill in stack trace into preallocated backtrace (no GC)
|
|
|
1230
|
|
|
1231 // No-op if stack trace is disabled
|
|
|
1232 if (!StackTraceInThrowable) return;
|
|
|
1233
|
|
|
1234 assert(throwable->is_a(SystemDictionary::throwable_klass()), "sanity check");
|
|
|
1235
|
|
|
1236 oop backtrace = java_lang_Throwable::backtrace(throwable());
|
|
|
1237 assert(backtrace != NULL, "backtrace not preallocated");
|
|
|
1238
|
|
|
1239 oop m = objArrayOop(backtrace)->obj_at(trace_methods_offset);
|
|
|
1240 objArrayOop methods = objArrayOop(m);
|
|
|
1241 assert(methods != NULL && methods->length() > 0, "method array not preallocated");
|
|
|
1242
|
|
|
1243 oop b = objArrayOop(backtrace)->obj_at(trace_bcis_offset);
|
|
|
1244 typeArrayOop bcis = typeArrayOop(b);
|
|
|
1245 assert(bcis != NULL, "bci array not preallocated");
|
|
|
1246
|
|
|
1247 assert(methods->length() == bcis->length(), "method and bci arrays should match");
|
|
|
1248
|
|
|
1249 JavaThread* thread = JavaThread::current();
|
|
|
1250 ResourceMark rm(thread);
|
|
|
1251 vframeStream st(thread);
|
|
|
1252
|
|
|
1253 // Unlike fill_in_stack_trace we do not skip fillInStackTrace or throwable init
|
|
|
1254 // methods as preallocated errors aren't created by "java" code.
|
|
|
1255
|
|
|
1256 // fill in as much stack trace as possible
|
|
|
1257 int max_chunks = MIN2(methods->length(), (int)MaxJavaStackTraceDepth);
|
|
|
1258 int chunk_count = 0;
|
|
|
1259
|
|
|
1260 for (;!st.at_end(); st.next()) {
|
|
|
1261 // add element
|
|
|
1262 bcis->ushort_at_put(chunk_count, st.bci());
|
|
|
1263 methods->obj_at_put(chunk_count, st.method());
|
|
|
1264
|
|
|
1265 chunk_count++;
|
|
|
1266
|
|
|
1267 // Bail-out for deep stacks
|
|
|
1268 if (chunk_count >= max_chunks) break;
|
|
|
1269 }
|
|
|
1270 }
|
|
|
1271
|
|
|
1272
|
|
|
1273 int java_lang_Throwable::get_stack_trace_depth(oop throwable, TRAPS) {
|
|
|
1274 if (throwable == NULL) {
|
|
|
1275 THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
|
1276 }
|
|
|
1277 objArrayOop chunk = objArrayOop(backtrace(throwable));
|
|
|
1278 int depth = 0;
|
|
|
1279 if (chunk != NULL) {
|
|
|
1280 // Iterate over chunks and count full ones
|
|
|
1281 while (true) {
|
|
|
1282 objArrayOop next = objArrayOop(chunk->obj_at(trace_next_offset));
|
|
|
1283 if (next == NULL) break;
|
|
|
1284 depth += trace_chunk_size;
|
|
|
1285 chunk = next;
|
|
|
1286 }
|
|
|
1287 assert(chunk != NULL && chunk->obj_at(trace_next_offset) == NULL, "sanity check");
|
|
|
1288 // Count element in remaining partial chunk
|
|
|
1289 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset));
|
|
|
1290 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
|
|
|
1291 assert(methods != NULL && bcis != NULL, "sanity check");
|
|
|
1292 for (int i = 0; i < methods->length(); i++) {
|
|
|
1293 if (methods->obj_at(i) == NULL) break;
|
|
|
1294 depth++;
|
|
|
1295 }
|
|
|
1296 }
|
|
|
1297 return depth;
|
|
|
1298 }
|
|
|
1299
|
|
|
1300
|
|
|
1301 oop java_lang_Throwable::get_stack_trace_element(oop throwable, int index, TRAPS) {
|
|
|
1302 if (throwable == NULL) {
|
|
|
1303 THROW_0(vmSymbols::java_lang_NullPointerException());
|
|
|
1304 }
|
|
|
1305 if (index < 0) {
|
|
|
1306 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
|
1307 }
|
|
|
1308 // Compute how many chunks to skip and index into actual chunk
|
|
|
1309 objArrayOop chunk = objArrayOop(backtrace(throwable));
|
|
|
1310 int skip_chunks = index / trace_chunk_size;
|
|
|
1311 int chunk_index = index % trace_chunk_size;
|
|
|
1312 while (chunk != NULL && skip_chunks > 0) {
|
|
|
1313 chunk = objArrayOop(chunk->obj_at(trace_next_offset));
|
|
|
1314 skip_chunks--;
|
|
|
1315 }
|
|
|
1316 if (chunk == NULL) {
|
|
|
1317 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
|
1318 }
|
|
|
1319 // Get method,bci from chunk
|
|
|
1320 objArrayOop methods = objArrayOop(chunk->obj_at(trace_methods_offset));
|
|
|
1321 typeArrayOop bcis = typeArrayOop(chunk->obj_at(trace_bcis_offset));
|
|
|
1322 assert(methods != NULL && bcis != NULL, "sanity check");
|
|
|
1323 methodHandle method(THREAD, methodOop(methods->obj_at(chunk_index)));
|
|
|
1324 int bci = bcis->ushort_at(chunk_index);
|
|
|
1325 // Chunk can be partial full
|
|
|
1326 if (method.is_null()) {
|
|
|
1327 THROW_(vmSymbols::java_lang_IndexOutOfBoundsException(), NULL);
|
|
|
1328 }
|
|
|
1329
|
|
|
1330 oop element = java_lang_StackTraceElement::create(method, bci, CHECK_0);
|
|
|
1331 return element;
|
|
|
1332 }
|
|
|
1333
|
|
|
1334 oop java_lang_StackTraceElement::create(methodHandle method, int bci, TRAPS) {
|
|
|
1335 // SystemDictionary::stackTraceElement_klass() will be null for pre-1.4 JDKs
|
|
|
1336 assert(JDK_Version::is_gte_jdk14x_version(), "should only be called in >= 1.4");
|
|
|
1337
|
|
|
1338 // Allocate java.lang.StackTraceElement instance
|
|
|
1339 klassOop k = SystemDictionary::stackTraceElement_klass();
|
|
|
1340 instanceKlassHandle ik (THREAD, k);
|
|
|
1341 if (ik->should_be_initialized()) {
|
|
|
1342 ik->initialize(CHECK_0);
|
|
|
1343 }
|
|
|
1344
|
|
|
1345 Handle element = ik->allocate_instance_handle(CHECK_0);
|
|
|
1346 // Fill in class name
|
|
|
1347 ResourceMark rm(THREAD);
|
|
|
1348 const char* str = instanceKlass::cast(method->method_holder())->external_name();
|
|
|
1349 oop classname = StringTable::intern((char*) str, CHECK_0);
|
|
|
1350 java_lang_StackTraceElement::set_declaringClass(element(), classname);
|
|
|
1351 // Fill in method name
|
|
|
1352 oop methodname = StringTable::intern(method->name(), CHECK_0);
|
|
|
1353 java_lang_StackTraceElement::set_methodName(element(), methodname);
|
|
|
1354 // Fill in source file name
|
|
|
1355 symbolOop source = instanceKlass::cast(method->method_holder())->source_file_name();
|
|
|
1356 oop filename = StringTable::intern(source, CHECK_0);
|
|
|
1357 java_lang_StackTraceElement::set_fileName(element(), filename);
|
|
|
1358 // File in source line number
|
|
|
1359 int line_number;
|
|
|
1360 if (method->is_native()) {
|
|
|
1361 // Negative value different from -1 below, enabling Java code in
|
|
|
1362 // class java.lang.StackTraceElement to distinguish "native" from
|
|
|
1363 // "no LineNumberTable".
|
|
|
1364 line_number = -2;
|
|
|
1365 } else {
|
|
|
1366 // Returns -1 if no LineNumberTable, and otherwise actual line number
|
|
|
1367 line_number = method->line_number_from_bci(bci);
|
|
|
1368 }
|
|
|
1369 java_lang_StackTraceElement::set_lineNumber(element(), line_number);
|
|
|
1370
|
|
|
1371 return element();
|
|
|
1372 }
|
|
|
1373
|
|
|
1374
|
|
|
1375 void java_lang_reflect_AccessibleObject::compute_offsets() {
|
|
|
1376 klassOop k = SystemDictionary::reflect_accessible_object_klass();
|
|
|
1377 COMPUTE_OFFSET("java.lang.reflect.AccessibleObject", override_offset, k, vmSymbols::override_name(), vmSymbols::bool_signature());
|
|
|
1378 }
|
|
|
1379
|
|
|
1380 jboolean java_lang_reflect_AccessibleObject::override(oop reflect) {
|
|
|
1381 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1382 return (jboolean) reflect->bool_field(override_offset);
|
|
|
1383 }
|
|
|
1384
|
|
|
1385 void java_lang_reflect_AccessibleObject::set_override(oop reflect, jboolean value) {
|
|
|
1386 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1387 reflect->bool_field_put(override_offset, (int) value);
|
|
|
1388 }
|
|
|
1389
|
|
|
1390 void java_lang_reflect_Method::compute_offsets() {
|
|
|
1391 klassOop k = SystemDictionary::reflect_method_klass();
|
|
|
1392 COMPUTE_OFFSET("java.lang.reflect.Method", clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
|
1393 COMPUTE_OFFSET("java.lang.reflect.Method", name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
|
1394 COMPUTE_OFFSET("java.lang.reflect.Method", returnType_offset, k, vmSymbols::returnType_name(), vmSymbols::class_signature());
|
|
|
1395 COMPUTE_OFFSET("java.lang.reflect.Method", parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
|
|
|
1396 COMPUTE_OFFSET("java.lang.reflect.Method", exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
|
|
|
1397 COMPUTE_OFFSET("java.lang.reflect.Method", slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
|
1398 COMPUTE_OFFSET("java.lang.reflect.Method", modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
|
1399 // The generic signature and annotations fields are only present in 1.5
|
|
|
1400 signature_offset = -1;
|
|
|
1401 annotations_offset = -1;
|
|
|
1402 parameter_annotations_offset = -1;
|
|
|
1403 annotation_default_offset = -1;
|
|
|
1404 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
|
1405 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
|
1406 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
|
|
|
1407 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Method", annotation_default_offset, k, vmSymbols::annotation_default_name(), vmSymbols::byte_array_signature());
|
|
|
1408 }
|
|
|
1409
|
|
|
1410 Handle java_lang_reflect_Method::create(TRAPS) {
|
|
|
1411 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1412 klassOop klass = SystemDictionary::reflect_method_klass();
|
|
|
1413 // This class is eagerly initialized during VM initialization, since we keep a refence
|
|
|
1414 // to one of the methods
|
|
|
1415 assert(instanceKlass::cast(klass)->is_initialized(), "must be initialized");
|
|
|
1416 return instanceKlass::cast(klass)->allocate_instance_handle(CHECK_NH);
|
|
|
1417 }
|
|
|
1418
|
|
|
1419 oop java_lang_reflect_Method::clazz(oop reflect) {
|
|
|
1420 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1421 return reflect->obj_field(clazz_offset);
|
|
|
1422 }
|
|
|
1423
|
|
|
1424 void java_lang_reflect_Method::set_clazz(oop reflect, oop value) {
|
|
|
1425 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1426 reflect->obj_field_put(clazz_offset, value);
|
|
|
1427 }
|
|
|
1428
|
|
|
1429 int java_lang_reflect_Method::slot(oop reflect) {
|
|
|
1430 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1431 return reflect->int_field(slot_offset);
|
|
|
1432 }
|
|
|
1433
|
|
|
1434 void java_lang_reflect_Method::set_slot(oop reflect, int value) {
|
|
|
1435 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1436 reflect->int_field_put(slot_offset, value);
|
|
|
1437 }
|
|
|
1438
|
|
|
1439 oop java_lang_reflect_Method::name(oop method) {
|
|
|
1440 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1441 return method->obj_field(name_offset);
|
|
|
1442 }
|
|
|
1443
|
|
|
1444 void java_lang_reflect_Method::set_name(oop method, oop value) {
|
|
|
1445 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1446 method->obj_field_put(name_offset, value);
|
|
|
1447 }
|
|
|
1448
|
|
|
1449 oop java_lang_reflect_Method::return_type(oop method) {
|
|
|
1450 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1451 return method->obj_field(returnType_offset);
|
|
|
1452 }
|
|
|
1453
|
|
|
1454 void java_lang_reflect_Method::set_return_type(oop method, oop value) {
|
|
|
1455 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1456 method->obj_field_put(returnType_offset, value);
|
|
|
1457 }
|
|
|
1458
|
|
|
1459 oop java_lang_reflect_Method::parameter_types(oop method) {
|
|
|
1460 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1461 return method->obj_field(parameterTypes_offset);
|
|
|
1462 }
|
|
|
1463
|
|
|
1464 void java_lang_reflect_Method::set_parameter_types(oop method, oop value) {
|
|
|
1465 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1466 method->obj_field_put(parameterTypes_offset, value);
|
|
|
1467 }
|
|
|
1468
|
|
|
1469 oop java_lang_reflect_Method::exception_types(oop method) {
|
|
|
1470 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1471 return method->obj_field(exceptionTypes_offset);
|
|
|
1472 }
|
|
|
1473
|
|
|
1474 void java_lang_reflect_Method::set_exception_types(oop method, oop value) {
|
|
|
1475 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1476 method->obj_field_put(exceptionTypes_offset, value);
|
|
|
1477 }
|
|
|
1478
|
|
|
1479 int java_lang_reflect_Method::modifiers(oop method) {
|
|
|
1480 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1481 return method->int_field(modifiers_offset);
|
|
|
1482 }
|
|
|
1483
|
|
|
1484 void java_lang_reflect_Method::set_modifiers(oop method, int value) {
|
|
|
1485 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1486 method->int_field_put(modifiers_offset, value);
|
|
|
1487 }
|
|
|
1488
|
|
|
1489 bool java_lang_reflect_Method::has_signature_field() {
|
|
|
1490 return (signature_offset >= 0);
|
|
|
1491 }
|
|
|
1492
|
|
|
1493 oop java_lang_reflect_Method::signature(oop method) {
|
|
|
1494 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1495 assert(has_signature_field(), "signature field must be present");
|
|
|
1496 return method->obj_field(signature_offset);
|
|
|
1497 }
|
|
|
1498
|
|
|
1499 void java_lang_reflect_Method::set_signature(oop method, oop value) {
|
|
|
1500 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1501 assert(has_signature_field(), "signature field must be present");
|
|
|
1502 method->obj_field_put(signature_offset, value);
|
|
|
1503 }
|
|
|
1504
|
|
|
1505 bool java_lang_reflect_Method::has_annotations_field() {
|
|
|
1506 return (annotations_offset >= 0);
|
|
|
1507 }
|
|
|
1508
|
|
|
1509 oop java_lang_reflect_Method::annotations(oop method) {
|
|
|
1510 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1511 assert(has_annotations_field(), "annotations field must be present");
|
|
|
1512 return method->obj_field(annotations_offset);
|
|
|
1513 }
|
|
|
1514
|
|
|
1515 void java_lang_reflect_Method::set_annotations(oop method, oop value) {
|
|
|
1516 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1517 assert(has_annotations_field(), "annotations field must be present");
|
|
|
1518 method->obj_field_put(annotations_offset, value);
|
|
|
1519 }
|
|
|
1520
|
|
|
1521 bool java_lang_reflect_Method::has_parameter_annotations_field() {
|
|
|
1522 return (parameter_annotations_offset >= 0);
|
|
|
1523 }
|
|
|
1524
|
|
|
1525 oop java_lang_reflect_Method::parameter_annotations(oop method) {
|
|
|
1526 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1527 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
|
1528 return method->obj_field(parameter_annotations_offset);
|
|
|
1529 }
|
|
|
1530
|
|
|
1531 void java_lang_reflect_Method::set_parameter_annotations(oop method, oop value) {
|
|
|
1532 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1533 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
|
1534 method->obj_field_put(parameter_annotations_offset, value);
|
|
|
1535 }
|
|
|
1536
|
|
|
1537 bool java_lang_reflect_Method::has_annotation_default_field() {
|
|
|
1538 return (annotation_default_offset >= 0);
|
|
|
1539 }
|
|
|
1540
|
|
|
1541 oop java_lang_reflect_Method::annotation_default(oop method) {
|
|
|
1542 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1543 assert(has_annotation_default_field(), "annotation default field must be present");
|
|
|
1544 return method->obj_field(annotation_default_offset);
|
|
|
1545 }
|
|
|
1546
|
|
|
1547 void java_lang_reflect_Method::set_annotation_default(oop method, oop value) {
|
|
|
1548 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1549 assert(has_annotation_default_field(), "annotation default field must be present");
|
|
|
1550 method->obj_field_put(annotation_default_offset, value);
|
|
|
1551 }
|
|
|
1552
|
|
|
1553 void java_lang_reflect_Constructor::compute_offsets() {
|
|
|
1554 klassOop k = SystemDictionary::reflect_constructor_klass();
|
|
|
1555 COMPUTE_OFFSET("java.lang.reflect.Constructor", clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
|
1556 COMPUTE_OFFSET("java.lang.reflect.Constructor", parameterTypes_offset, k, vmSymbols::parameterTypes_name(), vmSymbols::class_array_signature());
|
|
|
1557 COMPUTE_OFFSET("java.lang.reflect.Constructor", exceptionTypes_offset, k, vmSymbols::exceptionTypes_name(), vmSymbols::class_array_signature());
|
|
|
1558 COMPUTE_OFFSET("java.lang.reflect.Constructor", slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
|
1559 COMPUTE_OFFSET("java.lang.reflect.Constructor", modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
|
1560 // The generic signature and annotations fields are only present in 1.5
|
|
|
1561 signature_offset = -1;
|
|
|
1562 annotations_offset = -1;
|
|
|
1563 parameter_annotations_offset = -1;
|
|
|
1564 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Constructor", signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
|
1565 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Constructor", annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
|
1566 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Constructor", parameter_annotations_offset, k, vmSymbols::parameter_annotations_name(), vmSymbols::byte_array_signature());
|
|
|
1567 }
|
|
|
1568
|
|
|
1569 Handle java_lang_reflect_Constructor::create(TRAPS) {
|
|
|
1570 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1571 symbolHandle name = vmSymbolHandles::java_lang_reflect_Constructor();
|
|
|
1572 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
|
|
|
1573 instanceKlassHandle klass (THREAD, k);
|
|
|
1574 // Ensure it is initialized
|
|
|
1575 klass->initialize(CHECK_NH);
|
|
|
1576 return klass->allocate_instance_handle(CHECK_NH);
|
|
|
1577 }
|
|
|
1578
|
|
|
1579 oop java_lang_reflect_Constructor::clazz(oop reflect) {
|
|
|
1580 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1581 return reflect->obj_field(clazz_offset);
|
|
|
1582 }
|
|
|
1583
|
|
|
1584 void java_lang_reflect_Constructor::set_clazz(oop reflect, oop value) {
|
|
|
1585 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1586 reflect->obj_field_put(clazz_offset, value);
|
|
|
1587 }
|
|
|
1588
|
|
|
1589 oop java_lang_reflect_Constructor::parameter_types(oop constructor) {
|
|
|
1590 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1591 return constructor->obj_field(parameterTypes_offset);
|
|
|
1592 }
|
|
|
1593
|
|
|
1594 void java_lang_reflect_Constructor::set_parameter_types(oop constructor, oop value) {
|
|
|
1595 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1596 constructor->obj_field_put(parameterTypes_offset, value);
|
|
|
1597 }
|
|
|
1598
|
|
|
1599 oop java_lang_reflect_Constructor::exception_types(oop constructor) {
|
|
|
1600 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1601 return constructor->obj_field(exceptionTypes_offset);
|
|
|
1602 }
|
|
|
1603
|
|
|
1604 void java_lang_reflect_Constructor::set_exception_types(oop constructor, oop value) {
|
|
|
1605 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1606 constructor->obj_field_put(exceptionTypes_offset, value);
|
|
|
1607 }
|
|
|
1608
|
|
|
1609 int java_lang_reflect_Constructor::slot(oop reflect) {
|
|
|
1610 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1611 return reflect->int_field(slot_offset);
|
|
|
1612 }
|
|
|
1613
|
|
|
1614 void java_lang_reflect_Constructor::set_slot(oop reflect, int value) {
|
|
|
1615 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1616 reflect->int_field_put(slot_offset, value);
|
|
|
1617 }
|
|
|
1618
|
|
|
1619 int java_lang_reflect_Constructor::modifiers(oop constructor) {
|
|
|
1620 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1621 return constructor->int_field(modifiers_offset);
|
|
|
1622 }
|
|
|
1623
|
|
|
1624 void java_lang_reflect_Constructor::set_modifiers(oop constructor, int value) {
|
|
|
1625 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1626 constructor->int_field_put(modifiers_offset, value);
|
|
|
1627 }
|
|
|
1628
|
|
|
1629 bool java_lang_reflect_Constructor::has_signature_field() {
|
|
|
1630 return (signature_offset >= 0);
|
|
|
1631 }
|
|
|
1632
|
|
|
1633 oop java_lang_reflect_Constructor::signature(oop constructor) {
|
|
|
1634 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1635 assert(has_signature_field(), "signature field must be present");
|
|
|
1636 return constructor->obj_field(signature_offset);
|
|
|
1637 }
|
|
|
1638
|
|
|
1639 void java_lang_reflect_Constructor::set_signature(oop constructor, oop value) {
|
|
|
1640 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1641 assert(has_signature_field(), "signature field must be present");
|
|
|
1642 constructor->obj_field_put(signature_offset, value);
|
|
|
1643 }
|
|
|
1644
|
|
|
1645 bool java_lang_reflect_Constructor::has_annotations_field() {
|
|
|
1646 return (annotations_offset >= 0);
|
|
|
1647 }
|
|
|
1648
|
|
|
1649 oop java_lang_reflect_Constructor::annotations(oop constructor) {
|
|
|
1650 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1651 assert(has_annotations_field(), "annotations field must be present");
|
|
|
1652 return constructor->obj_field(annotations_offset);
|
|
|
1653 }
|
|
|
1654
|
|
|
1655 void java_lang_reflect_Constructor::set_annotations(oop constructor, oop value) {
|
|
|
1656 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1657 assert(has_annotations_field(), "annotations field must be present");
|
|
|
1658 constructor->obj_field_put(annotations_offset, value);
|
|
|
1659 }
|
|
|
1660
|
|
|
1661 bool java_lang_reflect_Constructor::has_parameter_annotations_field() {
|
|
|
1662 return (parameter_annotations_offset >= 0);
|
|
|
1663 }
|
|
|
1664
|
|
|
1665 oop java_lang_reflect_Constructor::parameter_annotations(oop method) {
|
|
|
1666 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1667 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
|
1668 return method->obj_field(parameter_annotations_offset);
|
|
|
1669 }
|
|
|
1670
|
|
|
1671 void java_lang_reflect_Constructor::set_parameter_annotations(oop method, oop value) {
|
|
|
1672 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1673 assert(has_parameter_annotations_field(), "parameter annotations field must be present");
|
|
|
1674 method->obj_field_put(parameter_annotations_offset, value);
|
|
|
1675 }
|
|
|
1676
|
|
|
1677 void java_lang_reflect_Field::compute_offsets() {
|
|
|
1678 klassOop k = SystemDictionary::reflect_field_klass();
|
|
|
1679 COMPUTE_OFFSET("java.lang.reflect.Field", clazz_offset, k, vmSymbols::clazz_name(), vmSymbols::class_signature());
|
|
|
1680 COMPUTE_OFFSET("java.lang.reflect.Field", name_offset, k, vmSymbols::name_name(), vmSymbols::string_signature());
|
|
|
1681 COMPUTE_OFFSET("java.lang.reflect.Field", type_offset, k, vmSymbols::type_name(), vmSymbols::class_signature());
|
|
|
1682 COMPUTE_OFFSET("java.lang.reflect.Field", slot_offset, k, vmSymbols::slot_name(), vmSymbols::int_signature());
|
|
|
1683 COMPUTE_OFFSET("java.lang.reflect.Field", modifiers_offset, k, vmSymbols::modifiers_name(), vmSymbols::int_signature());
|
|
|
1684 // The generic signature and annotations fields are only present in 1.5
|
|
|
1685 signature_offset = -1;
|
|
|
1686 annotations_offset = -1;
|
|
|
1687 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Field", signature_offset, k, vmSymbols::signature_name(), vmSymbols::string_signature());
|
|
|
1688 COMPUTE_OPTIONAL_OFFSET("java.lang.reflect.Field", annotations_offset, k, vmSymbols::annotations_name(), vmSymbols::byte_array_signature());
|
|
|
1689 }
|
|
|
1690
|
|
|
1691 Handle java_lang_reflect_Field::create(TRAPS) {
|
|
|
1692 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1693 symbolHandle name = vmSymbolHandles::java_lang_reflect_Field();
|
|
|
1694 klassOop k = SystemDictionary::resolve_or_fail(name, true, CHECK_NH);
|
|
|
1695 instanceKlassHandle klass (THREAD, k);
|
|
|
1696 // Ensure it is initialized
|
|
|
1697 klass->initialize(CHECK_NH);
|
|
|
1698 return klass->allocate_instance_handle(CHECK_NH);
|
|
|
1699 }
|
|
|
1700
|
|
|
1701 oop java_lang_reflect_Field::clazz(oop reflect) {
|
|
|
1702 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1703 return reflect->obj_field(clazz_offset);
|
|
|
1704 }
|
|
|
1705
|
|
|
1706 void java_lang_reflect_Field::set_clazz(oop reflect, oop value) {
|
|
|
1707 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1708 reflect->obj_field_put(clazz_offset, value);
|
|
|
1709 }
|
|
|
1710
|
|
|
1711 oop java_lang_reflect_Field::name(oop field) {
|
|
|
1712 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1713 return field->obj_field(name_offset);
|
|
|
1714 }
|
|
|
1715
|
|
|
1716 void java_lang_reflect_Field::set_name(oop field, oop value) {
|
|
|
1717 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1718 field->obj_field_put(name_offset, value);
|
|
|
1719 }
|
|
|
1720
|
|
|
1721 oop java_lang_reflect_Field::type(oop field) {
|
|
|
1722 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1723 return field->obj_field(type_offset);
|
|
|
1724 }
|
|
|
1725
|
|
|
1726 void java_lang_reflect_Field::set_type(oop field, oop value) {
|
|
|
1727 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1728 field->obj_field_put(type_offset, value);
|
|
|
1729 }
|
|
|
1730
|
|
|
1731 int java_lang_reflect_Field::slot(oop reflect) {
|
|
|
1732 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1733 return reflect->int_field(slot_offset);
|
|
|
1734 }
|
|
|
1735
|
|
|
1736 void java_lang_reflect_Field::set_slot(oop reflect, int value) {
|
|
|
1737 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1738 reflect->int_field_put(slot_offset, value);
|
|
|
1739 }
|
|
|
1740
|
|
|
1741 int java_lang_reflect_Field::modifiers(oop field) {
|
|
|
1742 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1743 return field->int_field(modifiers_offset);
|
|
|
1744 }
|
|
|
1745
|
|
|
1746 void java_lang_reflect_Field::set_modifiers(oop field, int value) {
|
|
|
1747 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1748 field->int_field_put(modifiers_offset, value);
|
|
|
1749 }
|
|
|
1750
|
|
|
1751 bool java_lang_reflect_Field::has_signature_field() {
|
|
|
1752 return (signature_offset >= 0);
|
|
|
1753 }
|
|
|
1754
|
|
|
1755 oop java_lang_reflect_Field::signature(oop field) {
|
|
|
1756 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1757 assert(has_signature_field(), "signature field must be present");
|
|
|
1758 return field->obj_field(signature_offset);
|
|
|
1759 }
|
|
|
1760
|
|
|
1761 void java_lang_reflect_Field::set_signature(oop field, oop value) {
|
|
|
1762 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1763 assert(has_signature_field(), "signature field must be present");
|
|
|
1764 field->obj_field_put(signature_offset, value);
|
|
|
1765 }
|
|
|
1766
|
|
|
1767 bool java_lang_reflect_Field::has_annotations_field() {
|
|
|
1768 return (annotations_offset >= 0);
|
|
|
1769 }
|
|
|
1770
|
|
|
1771 oop java_lang_reflect_Field::annotations(oop field) {
|
|
|
1772 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1773 assert(has_annotations_field(), "annotations field must be present");
|
|
|
1774 return field->obj_field(annotations_offset);
|
|
|
1775 }
|
|
|
1776
|
|
|
1777 void java_lang_reflect_Field::set_annotations(oop field, oop value) {
|
|
|
1778 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1779 assert(has_annotations_field(), "annotations field must be present");
|
|
|
1780 field->obj_field_put(annotations_offset, value);
|
|
|
1781 }
|
|
|
1782
|
|
|
1783
|
|
|
1784 void sun_reflect_ConstantPool::compute_offsets() {
|
|
|
1785 klassOop k = SystemDictionary::reflect_constant_pool_klass();
|
|
|
1786 // This null test can be removed post beta
|
|
|
1787 if (k != NULL) {
|
|
|
1788 COMPUTE_OFFSET("sun.reflect.ConstantPool", _cp_oop_offset, k, vmSymbols::constantPoolOop_name(), vmSymbols::object_signature());
|
|
|
1789 }
|
|
|
1790 }
|
|
|
1791
|
|
|
1792
|
|
|
1793 Handle sun_reflect_ConstantPool::create(TRAPS) {
|
|
|
1794 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1795 klassOop k = SystemDictionary::reflect_constant_pool_klass();
|
|
|
1796 instanceKlassHandle klass (THREAD, k);
|
|
|
1797 // Ensure it is initialized
|
|
|
1798 klass->initialize(CHECK_NH);
|
|
|
1799 return klass->allocate_instance_handle(CHECK_NH);
|
|
|
1800 }
|
|
|
1801
|
|
|
1802
|
|
|
1803 oop sun_reflect_ConstantPool::cp_oop(oop reflect) {
|
|
|
1804 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1805 return reflect->obj_field(_cp_oop_offset);
|
|
|
1806 }
|
|
|
1807
|
|
|
1808
|
|
|
1809 void sun_reflect_ConstantPool::set_cp_oop(oop reflect, oop value) {
|
|
|
1810 assert(Universe::is_fully_initialized(), "Need to find another solution to the reflection problem");
|
|
|
1811 reflect->obj_field_put(_cp_oop_offset, value);
|
|
|
1812 }
|
|
|
1813
|
|
|
1814 void sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets() {
|
|
|
1815 klassOop k = SystemDictionary::reflect_unsafe_static_field_accessor_impl_klass();
|
|
|
1816 // This null test can be removed post beta
|
|
|
1817 if (k != NULL) {
|
|
|
1818 COMPUTE_OFFSET("sun.reflect.UnsafeStaticFieldAccessorImpl", _base_offset, k,
|
|
|
1819 vmSymbols::base_name(), vmSymbols::object_signature());
|
|
|
1820 }
|
|
|
1821 }
|
|
|
1822
|
|
|
1823 oop java_lang_boxing_object::initialize_and_allocate(klassOop k, TRAPS) {
|
|
|
1824 instanceKlassHandle h (THREAD, k);
|
|
|
1825 if (!h->is_initialized()) h->initialize(CHECK_0);
|
|
|
1826 return h->allocate_instance(THREAD);
|
|
|
1827 }
|
|
|
1828
|
|
|
1829
|
|
|
1830 oop java_lang_boxing_object::create(BasicType type, jvalue* value, TRAPS) {
|
|
|
1831 oop box;
|
|
|
1832 switch (type) {
|
|
|
1833 case T_BOOLEAN:
|
|
|
1834 box = initialize_and_allocate(SystemDictionary::boolean_klass(), CHECK_0);
|
|
|
1835 box->bool_field_put(value_offset, value->z);
|
|
|
1836 break;
|
|
|
1837 case T_CHAR:
|
|
|
1838 box = initialize_and_allocate(SystemDictionary::char_klass(), CHECK_0);
|
|
|
1839 box->char_field_put(value_offset, value->c);
|
|
|
1840 break;
|
|
|
1841 case T_FLOAT:
|
|
|
1842 box = initialize_and_allocate(SystemDictionary::float_klass(), CHECK_0);
|
|
|
1843 box->float_field_put(value_offset, value->f);
|
|
|
1844 break;
|
|
|
1845 case T_DOUBLE:
|
|
|
1846 box = initialize_and_allocate(SystemDictionary::double_klass(), CHECK_0);
|
|
|
1847 box->double_field_put(value_offset, value->d);
|
|
|
1848 break;
|
|
|
1849 case T_BYTE:
|
|
|
1850 box = initialize_and_allocate(SystemDictionary::byte_klass(), CHECK_0);
|
|
|
1851 box->byte_field_put(value_offset, value->b);
|
|
|
1852 break;
|
|
|
1853 case T_SHORT:
|
|
|
1854 box = initialize_and_allocate(SystemDictionary::short_klass(), CHECK_0);
|
|
|
1855 box->short_field_put(value_offset, value->s);
|
|
|
1856 break;
|
|
|
1857 case T_INT:
|
|
|
1858 box = initialize_and_allocate(SystemDictionary::int_klass(), CHECK_0);
|
|
|
1859 box->int_field_put(value_offset, value->i);
|
|
|
1860 break;
|
|
|
1861 case T_LONG:
|
|
|
1862 box = initialize_and_allocate(SystemDictionary::long_klass(), CHECK_0);
|
|
|
1863 box->long_field_put(value_offset, value->j);
|
|
|
1864 break;
|
|
|
1865 default:
|
|
|
1866 return NULL;
|
|
|
1867 }
|
|
|
1868 return box;
|
|
|
1869 }
|
|
|
1870
|
|
|
1871
|
|
|
1872 BasicType java_lang_boxing_object::get_value(oop box, jvalue* value) {
|
|
|
1873 klassOop k = box->klass();
|
|
|
1874 if (k == SystemDictionary::boolean_klass()) {
|
|
|
1875 value->z = box->bool_field(value_offset);
|
|
|
1876 return T_BOOLEAN;
|
|
|
1877 }
|
|
|
1878 if (k == SystemDictionary::char_klass()) {
|
|
|
1879 value->c = box->char_field(value_offset);
|
|
|
1880 return T_CHAR;
|
|
|
1881 }
|
|
|
1882 if (k == SystemDictionary::float_klass()) {
|
|
|
1883 value->f = box->float_field(value_offset);
|
|
|
1884 return T_FLOAT;
|
|
|
1885 }
|
|
|
1886 if (k == SystemDictionary::double_klass()) {
|
|
|
1887 value->d = box->double_field(value_offset);
|
|
|
1888 return T_DOUBLE;
|
|
|
1889 }
|
|
|
1890 if (k == SystemDictionary::byte_klass()) {
|
|
|
1891 value->b = box->byte_field(value_offset);
|
|
|
1892 return T_BYTE;
|
|
|
1893 }
|
|
|
1894 if (k == SystemDictionary::short_klass()) {
|
|
|
1895 value->s = box->short_field(value_offset);
|
|
|
1896 return T_SHORT;
|
|
|
1897 }
|
|
|
1898 if (k == SystemDictionary::int_klass()) {
|
|
|
1899 value->i = box->int_field(value_offset);
|
|
|
1900 return T_INT;
|
|
|
1901 }
|
|
|
1902 if (k == SystemDictionary::long_klass()) {
|
|
|
1903 value->j = box->long_field(value_offset);
|
|
|
1904 return T_LONG;
|
|
|
1905 }
|
|
|
1906 return T_ILLEGAL;
|
|
|
1907 }
|
|
|
1908
|
|
|
1909
|
|
|
1910 BasicType java_lang_boxing_object::set_value(oop box, jvalue* value) {
|
|
|
1911 klassOop k = box->klass();
|
|
|
1912 if (k == SystemDictionary::boolean_klass()) {
|
|
|
1913 box->bool_field_put(value_offset, value->z);
|
|
|
1914 return T_BOOLEAN;
|
|
|
1915 }
|
|
|
1916 if (k == SystemDictionary::char_klass()) {
|
|
|
1917 box->char_field_put(value_offset, value->c);
|
|
|
1918 return T_CHAR;
|
|
|
1919 }
|
|
|
1920 if (k == SystemDictionary::float_klass()) {
|
|
|
1921 box->float_field_put(value_offset, value->f);
|
|
|
1922 return T_FLOAT;
|
|
|
1923 }
|
|
|
1924 if (k == SystemDictionary::double_klass()) {
|
|
|
1925 box->double_field_put(value_offset, value->d);
|
|
|
1926 return T_DOUBLE;
|
|
|
1927 }
|
|
|
1928 if (k == SystemDictionary::byte_klass()) {
|
|
|
1929 box->byte_field_put(value_offset, value->b);
|
|
|
1930 return T_BYTE;
|
|
|
1931 }
|
|
|
1932 if (k == SystemDictionary::short_klass()) {
|
|
|
1933 box->short_field_put(value_offset, value->s);
|
|
|
1934 return T_SHORT;
|
|
|
1935 }
|
|
|
1936 if (k == SystemDictionary::int_klass()) {
|
|
|
1937 box->int_field_put(value_offset, value->i);
|
|
|
1938 return T_INT;
|
|
|
1939 }
|
|
|
1940 if (k == SystemDictionary::long_klass()) {
|
|
|
1941 box->long_field_put(value_offset, value->j);
|
|
|
1942 return T_LONG;
|
|
|
1943 }
|
|
|
1944 return T_ILLEGAL;
|
|
|
1945 }
|
|
|
1946
|
|
|
1947
|
|
|
1948 // Support for java_lang_ref_Reference
|
|
|
1949
|
|
|
1950 void java_lang_ref_Reference::set_referent(oop ref, oop value) {
|
|
|
1951 ref->obj_field_put(referent_offset, value);
|
|
|
1952 }
|
|
|
1953
|
|
|
1954 oop* java_lang_ref_Reference::referent_addr(oop ref) {
|
|
|
1955 return ref->obj_field_addr(referent_offset);
|
|
|
1956 }
|
|
|
1957
|
|
|
1958 void java_lang_ref_Reference::set_next(oop ref, oop value) {
|
|
|
1959 ref->obj_field_put(next_offset, value);
|
|
|
1960 }
|
|
|
1961
|
|
|
1962 oop* java_lang_ref_Reference::next_addr(oop ref) {
|
|
|
1963 return ref->obj_field_addr(next_offset);
|
|
|
1964 }
|
|
|
1965
|
|
|
1966 void java_lang_ref_Reference::set_discovered(oop ref, oop value) {
|
|
|
1967 ref->obj_field_put(discovered_offset, value);
|
|
|
1968 }
|
|
|
1969
|
|
|
1970 oop* java_lang_ref_Reference::discovered_addr(oop ref) {
|
|
|
1971 return ref->obj_field_addr(discovered_offset);
|
|
|
1972 }
|
|
|
1973
|
|
|
1974 oop* java_lang_ref_Reference::pending_list_lock_addr() {
|
|
|
1975 instanceKlass* ik = instanceKlass::cast(SystemDictionary::reference_klass());
|
|
|
1976 return (oop*)(((char *)ik->start_of_static_fields()) + static_lock_offset);
|
|
|
1977 }
|
|
|
1978
|
|
|
1979 oop* java_lang_ref_Reference::pending_list_addr() {
|
|
|
1980 instanceKlass* ik = instanceKlass::cast(SystemDictionary::reference_klass());
|
|
|
1981 return (oop *)(((char *)ik->start_of_static_fields()) + static_pending_offset);
|
|
|
1982 }
|
|
|
1983
|
|
|
1984
|
|
|
1985 // Support for java_lang_ref_SoftReference
|
|
|
1986
|
|
|
1987 jlong java_lang_ref_SoftReference::timestamp(oop ref) {
|
|
|
1988 return ref->long_field(timestamp_offset);
|
|
|
1989 }
|
|
|
1990
|
|
|
1991 jlong java_lang_ref_SoftReference::clock() {
|
|
|
1992 instanceKlass* ik = instanceKlass::cast(SystemDictionary::soft_reference_klass());
|
|
|
1993 int offset = ik->offset_of_static_fields() + static_clock_offset;
|
|
|
1994
|
|
|
1995 return SystemDictionary::soft_reference_klass()->long_field(offset);
|
|
|
1996 }
|
|
|
1997
|
|
|
1998 void java_lang_ref_SoftReference::set_clock(jlong value) {
|
|
|
1999 instanceKlass* ik = instanceKlass::cast(SystemDictionary::soft_reference_klass());
|
|
|
2000 int offset = ik->offset_of_static_fields() + static_clock_offset;
|
|
|
2001
|
|
|
2002 SystemDictionary::soft_reference_klass()->long_field_put(offset, value);
|
|
|
2003 }
|
|
|
2004
|
|
|
2005
|
|
|
2006 // Support for java_security_AccessControlContext
|
|
|
2007
|
|
|
2008 int java_security_AccessControlContext::_context_offset = 0;
|
|
|
2009 int java_security_AccessControlContext::_privilegedContext_offset = 0;
|
|
|
2010 int java_security_AccessControlContext::_isPrivileged_offset = 0;
|
|
|
2011
|
|
|
2012
|
|
|
2013 void java_security_AccessControlContext::compute_offsets() {
|
|
|
2014 assert(_isPrivileged_offset == 0, "offsets should be initialized only once");
|
|
|
2015 fieldDescriptor fd;
|
|
|
2016 instanceKlass* ik = instanceKlass::cast(SystemDictionary::AccessControlContext_klass());
|
|
|
2017
|
|
|
2018 if (!ik->find_local_field(vmSymbols::context_name(), vmSymbols::protectiondomain_signature(), &fd)) {
|
|
|
2019 fatal("Invalid layout of java.security.AccessControlContext");
|
|
|
2020 }
|
|
|
2021 _context_offset = fd.offset();
|
|
|
2022
|
|
|
2023 if (!ik->find_local_field(vmSymbols::privilegedContext_name(), vmSymbols::accesscontrolcontext_signature(), &fd)) {
|
|
|
2024 fatal("Invalid layout of java.security.AccessControlContext");
|
|
|
2025 }
|
|
|
2026 _privilegedContext_offset = fd.offset();
|
|
|
2027
|
|
|
2028 if (!ik->find_local_field(vmSymbols::isPrivileged_name(), vmSymbols::bool_signature(), &fd)) {
|
|
|
2029 fatal("Invalid layout of java.security.AccessControlContext");
|
|
|
2030 }
|
|
|
2031 _isPrivileged_offset = fd.offset();
|
|
|
2032 }
|
|
|
2033
|
|
|
2034
|
|
|
2035 oop java_security_AccessControlContext::create(objArrayHandle context, bool isPrivileged, Handle privileged_context, TRAPS) {
|
|
|
2036 assert(_isPrivileged_offset != 0, "offsets should have been initialized");
|
|
|
2037 // Ensure klass is initialized
|
|
|
2038 instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->initialize(CHECK_0);
|
|
|
2039 // Allocate result
|
|
|
2040 oop result = instanceKlass::cast(SystemDictionary::AccessControlContext_klass())->allocate_instance(CHECK_0);
|
|
|
2041 // Fill in values
|
|
|
2042 result->obj_field_put(_context_offset, context());
|
|
|
2043 result->obj_field_put(_privilegedContext_offset, privileged_context());
|
|
|
2044 result->bool_field_put(_isPrivileged_offset, isPrivileged);
|
|
|
2045 return result;
|
|
|
2046 }
|
|
|
2047
|
|
|
2048
|
|
|
2049 // Support for java_lang_ClassLoader
|
|
|
2050
|
|
|
2051 oop java_lang_ClassLoader::parent(oop loader) {
|
|
|
2052 assert(loader->is_oop(), "loader must be oop");
|
|
|
2053 return loader->obj_field(parent_offset);
|
|
|
2054 }
|
|
|
2055
|
|
|
2056
|
|
|
2057 bool java_lang_ClassLoader::is_trusted_loader(oop loader) {
|
|
|
2058 // Fix for 4474172; see evaluation for more details
|
|
|
2059 loader = non_reflection_class_loader(loader);
|
|
|
2060
|
|
|
2061 oop cl = SystemDictionary::java_system_loader();
|
|
|
2062 while(cl != NULL) {
|
|
|
2063 if (cl == loader) return true;
|
|
|
2064 cl = parent(cl);
|
|
|
2065 }
|
|
|
2066 return false;
|
|
|
2067 }
|
|
|
2068
|
|
|
2069 oop java_lang_ClassLoader::non_reflection_class_loader(oop loader) {
|
|
|
2070 if (loader != NULL) {
|
|
|
2071 // See whether this is one of the class loaders associated with
|
|
|
2072 // the generated bytecodes for reflection, and if so, "magically"
|
|
|
2073 // delegate to its parent to prevent class loading from occurring
|
|
|
2074 // in places where applications using reflection didn't expect it.
|
|
|
2075 klassOop delegating_cl_class = SystemDictionary::reflect_delegating_classloader_klass();
|
|
|
2076 // This might be null in non-1.4 JDKs
|
|
|
2077 if (delegating_cl_class != NULL && loader->is_a(delegating_cl_class)) {
|
|
|
2078 return parent(loader);
|
|
|
2079 }
|
|
|
2080 }
|
|
|
2081 return loader;
|
|
|
2082 }
|
|
|
2083
|
|
|
2084
|
|
|
2085 // Support for java_lang_System
|
|
|
2086
|
|
|
2087 void java_lang_System::compute_offsets() {
|
|
|
2088 assert(offset_of_static_fields == 0, "offsets should be initialized only once");
|
|
|
2089
|
|
|
2090 instanceKlass* ik = instanceKlass::cast(SystemDictionary::system_klass());
|
|
|
2091 offset_of_static_fields = ik->offset_of_static_fields();
|
|
|
2092 }
|
|
|
2093
|
|
|
2094 int java_lang_System::in_offset_in_bytes() {
|
|
|
2095 return (offset_of_static_fields + static_in_offset);
|
|
|
2096 }
|
|
|
2097
|
|
|
2098
|
|
|
2099 int java_lang_System::out_offset_in_bytes() {
|
|
|
2100 return (offset_of_static_fields + static_out_offset);
|
|
|
2101 }
|
|
|
2102
|
|
|
2103
|
|
|
2104 int java_lang_System::err_offset_in_bytes() {
|
|
|
2105 return (offset_of_static_fields + static_err_offset);
|
|
|
2106 }
|
|
|
2107
|
|
|
2108
|
|
|
2109
|
|
|
2110 int java_lang_String::value_offset;
|
|
|
2111 int java_lang_String::offset_offset;
|
|
|
2112 int java_lang_String::count_offset;
|
|
|
2113 int java_lang_String::hash_offset;
|
|
|
2114 int java_lang_Class::klass_offset;
|
|
|
2115 int java_lang_Class::array_klass_offset;
|
|
|
2116 int java_lang_Class::resolved_constructor_offset;
|
|
|
2117 int java_lang_Class::number_of_fake_oop_fields;
|
|
|
2118 int java_lang_Throwable::backtrace_offset;
|
|
|
2119 int java_lang_Throwable::detailMessage_offset;
|
|
|
2120 int java_lang_Throwable::cause_offset;
|
|
|
2121 int java_lang_Throwable::stackTrace_offset;
|
|
|
2122 int java_lang_reflect_AccessibleObject::override_offset;
|
|
|
2123 int java_lang_reflect_Method::clazz_offset;
|
|
|
2124 int java_lang_reflect_Method::name_offset;
|
|
|
2125 int java_lang_reflect_Method::returnType_offset;
|
|
|
2126 int java_lang_reflect_Method::parameterTypes_offset;
|
|
|
2127 int java_lang_reflect_Method::exceptionTypes_offset;
|
|
|
2128 int java_lang_reflect_Method::slot_offset;
|
|
|
2129 int java_lang_reflect_Method::modifiers_offset;
|
|
|
2130 int java_lang_reflect_Method::signature_offset;
|
|
|
2131 int java_lang_reflect_Method::annotations_offset;
|
|
|
2132 int java_lang_reflect_Method::parameter_annotations_offset;
|
|
|
2133 int java_lang_reflect_Method::annotation_default_offset;
|
|
|
2134 int java_lang_reflect_Constructor::clazz_offset;
|
|
|
2135 int java_lang_reflect_Constructor::parameterTypes_offset;
|
|
|
2136 int java_lang_reflect_Constructor::exceptionTypes_offset;
|
|
|
2137 int java_lang_reflect_Constructor::slot_offset;
|
|
|
2138 int java_lang_reflect_Constructor::modifiers_offset;
|
|
|
2139 int java_lang_reflect_Constructor::signature_offset;
|
|
|
2140 int java_lang_reflect_Constructor::annotations_offset;
|
|
|
2141 int java_lang_reflect_Constructor::parameter_annotations_offset;
|
|
|
2142 int java_lang_reflect_Field::clazz_offset;
|
|
|
2143 int java_lang_reflect_Field::name_offset;
|
|
|
2144 int java_lang_reflect_Field::type_offset;
|
|
|
2145 int java_lang_reflect_Field::slot_offset;
|
|
|
2146 int java_lang_reflect_Field::modifiers_offset;
|
|
|
2147 int java_lang_reflect_Field::signature_offset;
|
|
|
2148 int java_lang_reflect_Field::annotations_offset;
|
|
|
2149 int java_lang_boxing_object::value_offset;
|
|
|
2150 int java_lang_ref_Reference::referent_offset;
|
|
|
2151 int java_lang_ref_Reference::queue_offset;
|
|
|
2152 int java_lang_ref_Reference::next_offset;
|
|
|
2153 int java_lang_ref_Reference::discovered_offset;
|
|
|
2154 int java_lang_ref_Reference::static_lock_offset;
|
|
|
2155 int java_lang_ref_Reference::static_pending_offset;
|
|
|
2156 int java_lang_ref_Reference::number_of_fake_oop_fields;
|
|
|
2157 int java_lang_ref_SoftReference::timestamp_offset;
|
|
|
2158 int java_lang_ref_SoftReference::static_clock_offset;
|
|
|
2159 int java_lang_ClassLoader::parent_offset;
|
|
|
2160 int java_lang_System::offset_of_static_fields;
|
|
|
2161 int java_lang_System::static_in_offset;
|
|
|
2162 int java_lang_System::static_out_offset;
|
|
|
2163 int java_lang_System::static_err_offset;
|
|
|
2164 int java_lang_StackTraceElement::declaringClass_offset;
|
|
|
2165 int java_lang_StackTraceElement::methodName_offset;
|
|
|
2166 int java_lang_StackTraceElement::fileName_offset;
|
|
|
2167 int java_lang_StackTraceElement::lineNumber_offset;
|
|
|
2168 int java_lang_AssertionStatusDirectives::classes_offset;
|
|
|
2169 int java_lang_AssertionStatusDirectives::classEnabled_offset;
|
|
|
2170 int java_lang_AssertionStatusDirectives::packages_offset;
|
|
|
2171 int java_lang_AssertionStatusDirectives::packageEnabled_offset;
|
|
|
2172 int java_lang_AssertionStatusDirectives::deflt_offset;
|
|
|
2173 int java_nio_Buffer::_limit_offset;
|
|
|
2174 int sun_misc_AtomicLongCSImpl::_value_offset;
|
|
|
2175 int java_util_concurrent_locks_AbstractOwnableSynchronizer::_owner_offset = 0;
|
|
|
2176 int sun_reflect_ConstantPool::_cp_oop_offset;
|
|
|
2177 int sun_reflect_UnsafeStaticFieldAccessorImpl::_base_offset;
|
|
|
2178
|
|
|
2179
|
|
|
2180 // Support for java_lang_StackTraceElement
|
|
|
2181
|
|
|
2182 void java_lang_StackTraceElement::set_fileName(oop element, oop value) {
|
|
|
2183 element->obj_field_put(fileName_offset, value);
|
|
|
2184 }
|
|
|
2185
|
|
|
2186 void java_lang_StackTraceElement::set_declaringClass(oop element, oop value) {
|
|
|
2187 element->obj_field_put(declaringClass_offset, value);
|
|
|
2188 }
|
|
|
2189
|
|
|
2190 void java_lang_StackTraceElement::set_methodName(oop element, oop value) {
|
|
|
2191 element->obj_field_put(methodName_offset, value);
|
|
|
2192 }
|
|
|
2193
|
|
|
2194 void java_lang_StackTraceElement::set_lineNumber(oop element, int value) {
|
|
|
2195 element->int_field_put(lineNumber_offset, value);
|
|
|
2196 }
|
|
|
2197
|
|
|
2198
|
|
|
2199 // Support for java Assertions - java_lang_AssertionStatusDirectives.
|
|
|
2200
|
|
|
2201 void java_lang_AssertionStatusDirectives::set_classes(oop o, oop val) {
|
|
|
2202 o->obj_field_put(classes_offset, val);
|
|
|
2203 }
|
|
|
2204
|
|
|
2205 void java_lang_AssertionStatusDirectives::set_classEnabled(oop o, oop val) {
|
|
|
2206 o->obj_field_put(classEnabled_offset, val);
|
|
|
2207 }
|
|
|
2208
|
|
|
2209 void java_lang_AssertionStatusDirectives::set_packages(oop o, oop val) {
|
|
|
2210 o->obj_field_put(packages_offset, val);
|
|
|
2211 }
|
|
|
2212
|
|
|
2213 void java_lang_AssertionStatusDirectives::set_packageEnabled(oop o, oop val) {
|
|
|
2214 o->obj_field_put(packageEnabled_offset, val);
|
|
|
2215 }
|
|
|
2216
|
|
|
2217 void java_lang_AssertionStatusDirectives::set_deflt(oop o, bool val) {
|
|
|
2218 o->bool_field_put(deflt_offset, val);
|
|
|
2219 }
|
|
|
2220
|
|
|
2221
|
|
|
2222 // Support for intrinsification of java.nio.Buffer.checkIndex
|
|
|
2223 int java_nio_Buffer::limit_offset() {
|
|
|
2224 return _limit_offset;
|
|
|
2225 }
|
|
|
2226
|
|
|
2227
|
|
|
2228 void java_nio_Buffer::compute_offsets() {
|
|
|
2229 klassOop k = SystemDictionary::java_nio_Buffer_klass();
|
|
|
2230 COMPUTE_OFFSET("java.nio.Buffer", _limit_offset, k, vmSymbols::limit_name(), vmSymbols::int_signature());
|
|
|
2231 }
|
|
|
2232
|
|
|
2233 // Support for intrinsification of sun.misc.AtomicLongCSImpl.attemptUpdate
|
|
|
2234 int sun_misc_AtomicLongCSImpl::value_offset() {
|
|
|
2235 assert(SystemDictionary::sun_misc_AtomicLongCSImpl_klass() != NULL, "can't call this");
|
|
|
2236 return _value_offset;
|
|
|
2237 }
|
|
|
2238
|
|
|
2239
|
|
|
2240 void sun_misc_AtomicLongCSImpl::compute_offsets() {
|
|
|
2241 klassOop k = SystemDictionary::sun_misc_AtomicLongCSImpl_klass();
|
|
|
2242 // If this class is not present, its value field offset won't be referenced.
|
|
|
2243 if (k != NULL) {
|
|
|
2244 COMPUTE_OFFSET("sun.misc.AtomicLongCSImpl", _value_offset, k, vmSymbols::value_name(), vmSymbols::long_signature());
|
|
|
2245 }
|
|
|
2246 }
|
|
|
2247
|
|
|
2248 void java_util_concurrent_locks_AbstractOwnableSynchronizer::initialize(TRAPS) {
|
|
|
2249 if (_owner_offset != 0) return;
|
|
|
2250
|
|
|
2251 assert(JDK_Version::is_gte_jdk16x_version(), "Must be JDK 1.6 or later");
|
|
|
2252 SystemDictionary::load_abstract_ownable_synchronizer_klass(CHECK);
|
|
|
2253 klassOop k = SystemDictionary::abstract_ownable_synchronizer_klass();
|
|
|
2254 COMPUTE_OFFSET("java.util.concurrent.locks.AbstractOwnableSynchronizer", _owner_offset, k,
|
|
|
2255 vmSymbols::exclusive_owner_thread_name(), vmSymbols::thread_signature());
|
|
|
2256 }
|
|
|
2257
|
|
|
2258 oop java_util_concurrent_locks_AbstractOwnableSynchronizer::get_owner_threadObj(oop obj) {
|
|
|
2259 assert(_owner_offset != 0, "Must be initialized");
|
|
|
2260 return obj->obj_field(_owner_offset);
|
|
|
2261 }
|
|
|
2262
|
|
|
2263 // Compute hard-coded offsets
|
|
|
2264 // Invoked before SystemDictionary::initialize, so pre-loaded classes
|
|
|
2265 // are not available to determine the offset_of_static_fields.
|
|
|
2266 void JavaClasses::compute_hard_coded_offsets() {
|
|
|
2267 const int x = wordSize;
|
|
|
2268 const int header = instanceOopDesc::header_size_in_bytes();
|
|
|
2269
|
|
|
2270 // Do the String Class
|
|
|
2271 java_lang_String::value_offset = java_lang_String::hc_value_offset * x + header;
|
|
|
2272 java_lang_String::offset_offset = java_lang_String::hc_offset_offset * x + header;
|
|
|
2273 java_lang_String::count_offset = java_lang_String::offset_offset + sizeof (jint);
|
|
|
2274 java_lang_String::hash_offset = java_lang_String::count_offset + sizeof (jint);
|
|
|
2275
|
|
|
2276 // Do the Class Class
|
|
|
2277 java_lang_Class::klass_offset = java_lang_Class::hc_klass_offset * x + header;
|
|
|
2278 java_lang_Class::array_klass_offset = java_lang_Class::hc_array_klass_offset * x + header;
|
|
|
2279 java_lang_Class::resolved_constructor_offset = java_lang_Class::hc_resolved_constructor_offset * x + header;
|
|
|
2280
|
|
|
2281 // This is NOT an offset
|
|
|
2282 java_lang_Class::number_of_fake_oop_fields = java_lang_Class::hc_number_of_fake_oop_fields;
|
|
|
2283
|
|
|
2284 // Throwable Class
|
|
|
2285 java_lang_Throwable::backtrace_offset = java_lang_Throwable::hc_backtrace_offset * x + header;
|
|
|
2286 java_lang_Throwable::detailMessage_offset = java_lang_Throwable::hc_detailMessage_offset * x + header;
|
|
|
2287 java_lang_Throwable::cause_offset = java_lang_Throwable::hc_cause_offset * x + header;
|
|
|
2288 java_lang_Throwable::stackTrace_offset = java_lang_Throwable::hc_stackTrace_offset * x + header;
|
|
|
2289
|
|
|
2290 // java_lang_boxing_object
|
|
|
2291 java_lang_boxing_object::value_offset = java_lang_boxing_object::hc_value_offset * x + header;
|
|
|
2292
|
|
|
2293 // java_lang_ref_Reference:
|
|
|
2294 java_lang_ref_Reference::referent_offset = java_lang_ref_Reference::hc_referent_offset * x + header;
|
|
|
2295 java_lang_ref_Reference::queue_offset = java_lang_ref_Reference::hc_queue_offset * x + header;
|
|
|
2296 java_lang_ref_Reference::next_offset = java_lang_ref_Reference::hc_next_offset * x + header;
|
|
|
2297 java_lang_ref_Reference::discovered_offset = java_lang_ref_Reference::hc_discovered_offset * x + header;
|
|
|
2298 java_lang_ref_Reference::static_lock_offset = java_lang_ref_Reference::hc_static_lock_offset * x;
|
|
|
2299 java_lang_ref_Reference::static_pending_offset = java_lang_ref_Reference::hc_static_pending_offset * x;
|
|
|
2300 // Artificial fields for java_lang_ref_Reference
|
|
|
2301 // The first field is for the discovered field added in 1.4
|
|
|
2302 java_lang_ref_Reference::number_of_fake_oop_fields = 1;
|
|
|
2303
|
|
|
2304 // java_lang_ref_SoftReference Class
|
|
|
2305 java_lang_ref_SoftReference::timestamp_offset = java_lang_ref_SoftReference::hc_timestamp_offset * x + header;
|
|
|
2306 // Don't multiply static fields because they are always in wordSize units
|
|
|
2307 java_lang_ref_SoftReference::static_clock_offset = java_lang_ref_SoftReference::hc_static_clock_offset * x;
|
|
|
2308
|
|
|
2309 // java_lang_ClassLoader
|
|
|
2310 java_lang_ClassLoader::parent_offset = java_lang_ClassLoader::hc_parent_offset * x + header;
|
|
|
2311
|
|
|
2312 // java_lang_System
|
|
|
2313 java_lang_System::static_in_offset = java_lang_System::hc_static_in_offset * x;
|
|
|
2314 java_lang_System::static_out_offset = java_lang_System::hc_static_out_offset * x;
|
|
|
2315 java_lang_System::static_err_offset = java_lang_System::hc_static_err_offset * x;
|
|
|
2316
|
|
|
2317 // java_lang_StackTraceElement
|
|
|
2318 java_lang_StackTraceElement::declaringClass_offset = java_lang_StackTraceElement::hc_declaringClass_offset * x + header;
|
|
|
2319 java_lang_StackTraceElement::methodName_offset = java_lang_StackTraceElement::hc_methodName_offset * x + header;
|
|
|
2320 java_lang_StackTraceElement::fileName_offset = java_lang_StackTraceElement::hc_fileName_offset * x + header;
|
|
|
2321 java_lang_StackTraceElement::lineNumber_offset = java_lang_StackTraceElement::hc_lineNumber_offset * x + header;
|
|
|
2322 java_lang_AssertionStatusDirectives::classes_offset = java_lang_AssertionStatusDirectives::hc_classes_offset * x + header;
|
|
|
2323 java_lang_AssertionStatusDirectives::classEnabled_offset = java_lang_AssertionStatusDirectives::hc_classEnabled_offset * x + header;
|
|
|
2324 java_lang_AssertionStatusDirectives::packages_offset = java_lang_AssertionStatusDirectives::hc_packages_offset * x + header;
|
|
|
2325 java_lang_AssertionStatusDirectives::packageEnabled_offset = java_lang_AssertionStatusDirectives::hc_packageEnabled_offset * x + header;
|
|
|
2326 java_lang_AssertionStatusDirectives::deflt_offset = java_lang_AssertionStatusDirectives::hc_deflt_offset * x + header;
|
|
|
2327
|
|
|
2328 }
|
|
|
2329
|
|
|
2330
|
|
|
2331 // Compute non-hard-coded field offsets of all the classes in this file
|
|
|
2332 void JavaClasses::compute_offsets() {
|
|
|
2333
|
|
|
2334 java_lang_Class::compute_offsets();
|
|
|
2335 java_lang_System::compute_offsets();
|
|
|
2336 java_lang_Thread::compute_offsets();
|
|
|
2337 java_lang_ThreadGroup::compute_offsets();
|
|
|
2338 java_security_AccessControlContext::compute_offsets();
|
|
|
2339 // Initialize reflection classes. The layouts of these classes
|
|
|
2340 // changed with the new reflection implementation in JDK 1.4, and
|
|
|
2341 // since the Universe doesn't know what JDK version it is until this
|
|
|
2342 // point we defer computation of these offsets until now.
|
|
|
2343 java_lang_reflect_AccessibleObject::compute_offsets();
|
|
|
2344 java_lang_reflect_Method::compute_offsets();
|
|
|
2345 java_lang_reflect_Constructor::compute_offsets();
|
|
|
2346 java_lang_reflect_Field::compute_offsets();
|
|
|
2347 if (JDK_Version::is_gte_jdk14x_version()) {
|
|
|
2348 java_nio_Buffer::compute_offsets();
|
|
|
2349 }
|
|
|
2350 if (JDK_Version::is_gte_jdk15x_version()) {
|
|
|
2351 sun_reflect_ConstantPool::compute_offsets();
|
|
|
2352 sun_reflect_UnsafeStaticFieldAccessorImpl::compute_offsets();
|
|
|
2353 }
|
|
|
2354 sun_misc_AtomicLongCSImpl::compute_offsets();
|
|
|
2355 }
|
|
|
2356
|
|
|
2357 #ifndef PRODUCT
|
|
|
2358
|
|
|
2359 // These functions exist to assert the validity of hard-coded field offsets to guard
|
|
|
2360 // against changes in the class files
|
|
|
2361
|
|
|
2362 bool JavaClasses::check_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
|
|
|
2363 EXCEPTION_MARK;
|
|
|
2364 fieldDescriptor fd;
|
|
|
2365 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH);
|
|
|
2366 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
|
2367 instanceKlassHandle h_klass (THREAD, k);
|
|
|
2368 //instanceKlassHandle h_klass(klass);
|
|
|
2369 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH);
|
|
|
2370 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH);
|
|
|
2371 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) {
|
|
|
2372 tty->print_cr("Nonstatic field %s.%s not found", klass_name, field_name);
|
|
|
2373 return false;
|
|
|
2374 }
|
|
|
2375 if (fd.is_static()) {
|
|
|
2376 tty->print_cr("Nonstatic field %s.%s appears to be static", klass_name, field_name);
|
|
|
2377 return false;
|
|
|
2378 }
|
|
|
2379 if (fd.offset() == hardcoded_offset ) {
|
|
|
2380 return true;
|
|
|
2381 } else {
|
|
|
2382 tty->print_cr("Offset of nonstatic field %s.%s is hardcoded as %d but should really be %d.",
|
|
|
2383 klass_name, field_name, hardcoded_offset, fd.offset());
|
|
|
2384 return false;
|
|
|
2385 }
|
|
|
2386 }
|
|
|
2387
|
|
|
2388
|
|
|
2389 bool JavaClasses::check_static_offset(const char *klass_name, int hardcoded_offset, const char *field_name, const char* field_sig) {
|
|
|
2390 EXCEPTION_MARK;
|
|
|
2391 fieldDescriptor fd;
|
|
|
2392 symbolHandle klass_sym = oopFactory::new_symbol_handle(klass_name, CATCH);
|
|
|
2393 klassOop k = SystemDictionary::resolve_or_fail(klass_sym, true, CATCH);
|
|
|
2394 instanceKlassHandle h_klass (THREAD, k);
|
|
|
2395 symbolHandle f_name = oopFactory::new_symbol_handle(field_name, CATCH);
|
|
|
2396 symbolHandle f_sig = oopFactory::new_symbol_handle(field_sig, CATCH);
|
|
|
2397 if (!h_klass->find_local_field(f_name(), f_sig(), &fd)) {
|
|
|
2398 tty->print_cr("Static field %s.%s not found", klass_name, field_name);
|
|
|
2399 return false;
|
|
|
2400 }
|
|
|
2401 if (!fd.is_static()) {
|
|
|
2402 tty->print_cr("Static field %s.%s appears to be nonstatic", klass_name, field_name);
|
|
|
2403 return false;
|
|
|
2404 }
|
|
|
2405 if (fd.offset() == hardcoded_offset + h_klass->offset_of_static_fields()) {
|
|
|
2406 return true;
|
|
|
2407 } else {
|
|
|
2408 tty->print_cr("Offset of static field %s.%s is hardcoded as %d but should really be %d.", klass_name, field_name, hardcoded_offset, fd.offset() - h_klass->offset_of_static_fields());
|
|
|
2409 return false;
|
|
|
2410 }
|
|
|
2411 }
|
|
|
2412
|
|
|
2413
|
|
|
2414 // Check the hard-coded field offsets of all the classes in this file
|
|
|
2415
|
|
|
2416 void JavaClasses::check_offsets() {
|
|
|
2417 bool valid = true;
|
|
|
2418
|
|
|
2419 #define CHECK_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
|
2420 valid &= check_offset(klass_name, cpp_klass_name :: field_name ## _offset, #field_name, field_sig)
|
|
|
2421
|
|
|
2422 #define CHECK_STATIC_OFFSET(klass_name, cpp_klass_name, field_name, field_sig) \
|
|
|
2423 valid &= check_static_offset(klass_name, cpp_klass_name :: static_ ## field_name ## _offset, #field_name, field_sig)
|
|
|
2424
|
|
|
2425 // java.lang.String
|
|
|
2426
|
|
|
2427 CHECK_OFFSET("java/lang/String", java_lang_String, value, "[C");
|
|
|
2428 CHECK_OFFSET("java/lang/String", java_lang_String, offset, "I");
|
|
|
2429 CHECK_OFFSET("java/lang/String", java_lang_String, count, "I");
|
|
|
2430 CHECK_OFFSET("java/lang/String", java_lang_String, hash, "I");
|
|
|
2431
|
|
|
2432 // java.lang.Class
|
|
|
2433
|
|
|
2434 // Fake fields
|
|
|
2435 // CHECK_OFFSET("java/lang/Class", java_lang_Class, klass); // %%% this needs to be checked
|
|
|
2436 // CHECK_OFFSET("java/lang/Class", java_lang_Class, array_klass); // %%% this needs to be checked
|
|
|
2437 // CHECK_OFFSET("java/lang/Class", java_lang_Class, resolved_constructor); // %%% this needs to be checked
|
|
|
2438
|
|
|
2439 // java.lang.Throwable
|
|
|
2440
|
|
|
2441 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, backtrace, "Ljava/lang/Object;");
|
|
|
2442 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, detailMessage, "Ljava/lang/String;");
|
|
|
2443 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, cause, "Ljava/lang/Throwable;");
|
|
|
2444 CHECK_OFFSET("java/lang/Throwable", java_lang_Throwable, stackTrace, "[Ljava/lang/StackTraceElement;");
|
|
|
2445
|
|
|
2446 // Boxed primitive objects (java_lang_boxing_object)
|
|
|
2447
|
|
|
2448 CHECK_OFFSET("java/lang/Boolean", java_lang_boxing_object, value, "Z");
|
|
|
2449 CHECK_OFFSET("java/lang/Character", java_lang_boxing_object, value, "C");
|
|
|
2450 CHECK_OFFSET("java/lang/Float", java_lang_boxing_object, value, "F");
|
|
|
2451 CHECK_OFFSET("java/lang/Double", java_lang_boxing_object, value, "D");
|
|
|
2452 CHECK_OFFSET("java/lang/Byte", java_lang_boxing_object, value, "B");
|
|
|
2453 CHECK_OFFSET("java/lang/Short", java_lang_boxing_object, value, "S");
|
|
|
2454 CHECK_OFFSET("java/lang/Integer", java_lang_boxing_object, value, "I");
|
|
|
2455 CHECK_OFFSET("java/lang/Long", java_lang_boxing_object, value, "J");
|
|
|
2456
|
|
|
2457 // java.lang.ClassLoader
|
|
|
2458
|
|
|
2459 CHECK_OFFSET("java/lang/ClassLoader", java_lang_ClassLoader, parent, "Ljava/lang/ClassLoader;");
|
|
|
2460
|
|
|
2461 // java.lang.System
|
|
|
2462
|
|
|
2463 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, in, "Ljava/io/InputStream;");
|
|
|
2464 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, out, "Ljava/io/PrintStream;");
|
|
|
2465 CHECK_STATIC_OFFSET("java/lang/System", java_lang_System, err, "Ljava/io/PrintStream;");
|
|
|
2466
|
|
|
2467 // java.lang.StackTraceElement
|
|
|
2468
|
|
|
2469 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, declaringClass, "Ljava/lang/String;");
|
|
|
2470 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, methodName, "Ljava/lang/String;");
|
|
|
2471 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, fileName, "Ljava/lang/String;");
|
|
|
2472 CHECK_OFFSET("java/lang/StackTraceElement", java_lang_StackTraceElement, lineNumber, "I");
|
|
|
2473
|
|
|
2474 // java.lang.ref.Reference
|
|
|
2475
|
|
|
2476 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, referent, "Ljava/lang/Object;");
|
|
|
2477 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, queue, "Ljava/lang/ref/ReferenceQueue;");
|
|
|
2478 CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, next, "Ljava/lang/ref/Reference;");
|
|
|
2479 // Fake field
|
|
|
2480 //CHECK_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, discovered, "Ljava/lang/ref/Reference;");
|
|
|
2481 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, lock, "Ljava/lang/ref/Reference$Lock;");
|
|
|
2482 CHECK_STATIC_OFFSET("java/lang/ref/Reference", java_lang_ref_Reference, pending, "Ljava/lang/ref/Reference;");
|
|
|
2483
|
|
|
2484 // java.lang.ref.SoftReference
|
|
|
2485
|
|
|
2486 CHECK_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, timestamp, "J");
|
|
|
2487 CHECK_STATIC_OFFSET("java/lang/ref/SoftReference", java_lang_ref_SoftReference, clock, "J");
|
|
|
2488
|
|
|
2489 // java.lang.AssertionStatusDirectives
|
|
|
2490 //
|
|
|
2491 // The CheckAssertionStatusDirectives boolean can be removed from here and
|
|
|
2492 // globals.hpp after the AssertionStatusDirectives class has been integrated
|
|
|
2493 // into merlin "for some time." Without it, the vm will fail with early
|
|
|
2494 // merlin builds.
|
|
|
2495
|
|
|
2496 if (CheckAssertionStatusDirectives && JDK_Version::is_gte_jdk14x_version()) {
|
|
|
2497 const char* nm = "java/lang/AssertionStatusDirectives";
|
|
|
2498 const char* sig = "[Ljava/lang/String;";
|
|
|
2499 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classes, sig);
|
|
|
2500 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, classEnabled, "[Z");
|
|
|
2501 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packages, sig);
|
|
|
2502 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, packageEnabled, "[Z");
|
|
|
2503 CHECK_OFFSET(nm, java_lang_AssertionStatusDirectives, deflt, "Z");
|
|
|
2504 }
|
|
|
2505
|
|
|
2506 if (!valid) vm_exit_during_initialization("Hard-coded field offset verification failed");
|
|
|
2507 }
|
|
|
2508
|
|
|
2509 #endif // PRODUCT
|
|
|
2510
|
|
|
2511 void javaClasses_init() {
|
|
|
2512 JavaClasses::compute_offsets();
|
|
|
2513 JavaClasses::check_offsets();
|
|
|
2514 FilteredFieldsMap::initialize(); // must be done after computing offsets.
|
|
|
2515 }
|
