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0
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1 /*
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2 * Copyright 1998-2007 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/_codeBlob.cpp.incl"
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27
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28 unsigned int align_code_offset(int offset) {
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29 // align the size to CodeEntryAlignment
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30 return
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31 ((offset + (int)CodeHeap::header_size() + (CodeEntryAlignment-1)) & ~(CodeEntryAlignment-1))
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32 - (int)CodeHeap::header_size();
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33 }
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34
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35
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36 // This must be consistent with the CodeBlob constructor's layout actions.
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37 unsigned int CodeBlob::allocation_size(CodeBuffer* cb, int header_size) {
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38 unsigned int size = header_size;
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39 size += round_to(cb->total_relocation_size(), oopSize);
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40 // align the size to CodeEntryAlignment
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41 size = align_code_offset(size);
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42 size += round_to(cb->total_code_size(), oopSize);
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43 size += round_to(cb->total_oop_size(), oopSize);
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44 return size;
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45 }
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46
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47
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48 // Creates a simple CodeBlob. Sets up the size of the different regions.
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49 CodeBlob::CodeBlob(const char* name, int header_size, int size, int frame_complete, int locs_size) {
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50 assert(size == round_to(size, oopSize), "unaligned size");
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51 assert(locs_size == round_to(locs_size, oopSize), "unaligned size");
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52 assert(header_size == round_to(header_size, oopSize), "unaligned size");
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53 assert(!UseRelocIndex, "no space allocated for reloc index yet");
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54
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55 // Note: If UseRelocIndex is enabled, there needs to be (at least) one
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56 // extra word for the relocation information, containing the reloc
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57 // index table length. Unfortunately, the reloc index table imple-
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58 // mentation is not easily understandable and thus it is not clear
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59 // what exactly the format is supposed to be. For now, we just turn
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60 // off the use of this table (gri 7/6/2000).
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61
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62 _name = name;
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63 _size = size;
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64 _frame_complete_offset = frame_complete;
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65 _header_size = header_size;
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66 _relocation_size = locs_size;
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67 _instructions_offset = align_code_offset(header_size + locs_size);
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68 _data_offset = size;
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69 _oops_offset = size;
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70 _oops_length = 0;
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71 _frame_size = 0;
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72 set_oop_maps(NULL);
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73 }
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74
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75
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76 // Creates a CodeBlob from a CodeBuffer. Sets up the size of the different regions,
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77 // and copy code and relocation info.
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78 CodeBlob::CodeBlob(
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79 const char* name,
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80 CodeBuffer* cb,
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81 int header_size,
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82 int size,
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83 int frame_complete,
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84 int frame_size,
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85 OopMapSet* oop_maps
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86 ) {
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87 assert(size == round_to(size, oopSize), "unaligned size");
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88 assert(header_size == round_to(header_size, oopSize), "unaligned size");
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89
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90 _name = name;
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91 _size = size;
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92 _frame_complete_offset = frame_complete;
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93 _header_size = header_size;
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94 _relocation_size = round_to(cb->total_relocation_size(), oopSize);
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95 _instructions_offset = align_code_offset(header_size + _relocation_size);
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96 _data_offset = _instructions_offset + round_to(cb->total_code_size(), oopSize);
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97 _oops_offset = _size - round_to(cb->total_oop_size(), oopSize);
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98 _oops_length = 0; // temporary, until the copy_oops handshake
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99 assert(_oops_offset >= _data_offset, "codeBlob is too small");
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100 assert(_data_offset <= size, "codeBlob is too small");
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101
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102 cb->copy_code_and_locs_to(this);
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103 set_oop_maps(oop_maps);
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104 _frame_size = frame_size;
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105 #ifdef COMPILER1
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106 // probably wrong for tiered
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107 assert(_frame_size >= -1, "must use frame size or -1 for runtime stubs");
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108 #endif // COMPILER1
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109 }
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110
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111
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112 void CodeBlob::set_oop_maps(OopMapSet* p) {
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113 // Danger Will Robinson! This method allocates a big
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114 // chunk of memory, its your job to free it.
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115 if (p != NULL) {
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116 // We need to allocate a chunk big enough to hold the OopMapSet and all of its OopMaps
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117 _oop_maps = (OopMapSet* )NEW_C_HEAP_ARRAY(unsigned char, p->heap_size());
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118 p->copy_to((address)_oop_maps);
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119 } else {
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120 _oop_maps = NULL;
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121 }
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122 }
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123
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124
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125 void CodeBlob::flush() {
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126 if (_oop_maps) {
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127 FREE_C_HEAP_ARRAY(unsigned char, _oop_maps);
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128 _oop_maps = NULL;
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129 }
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130 _comments.free();
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131 }
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132
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133
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134 // Promote one word from an assembly-time handle to a live embedded oop.
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135 inline void CodeBlob::initialize_immediate_oop(oop* dest, jobject handle) {
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136 if (handle == NULL ||
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137 // As a special case, IC oops are initialized to 1 or -1.
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138 handle == (jobject) Universe::non_oop_word()) {
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139 (*dest) = (oop)handle;
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140 } else {
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141 (*dest) = JNIHandles::resolve_non_null(handle);
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142 }
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143 }
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144
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145
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146 void CodeBlob::copy_oops(GrowableArray<jobject>* array) {
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147 assert(_oops_length == 0, "do this handshake just once, please");
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148 int length = array->length();
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149 assert((address)(oops_begin() + length) <= data_end(), "oops big enough");
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150 oop* dest = oops_begin();
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151 for (int index = 0 ; index < length; index++) {
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152 initialize_immediate_oop(&dest[index], array->at(index));
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153 }
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154 _oops_length = length;
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155
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156 // Now we can fix up all the oops in the code.
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157 // We need to do this in the code because
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158 // the assembler uses jobjects as placeholders.
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159 // The code and relocations have already been
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160 // initialized by the CodeBlob constructor,
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161 // so it is valid even at this early point to
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162 // iterate over relocations and patch the code.
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163 fix_oop_relocations(NULL, NULL, /*initialize_immediates=*/ true);
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164 }
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165
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166
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167 relocInfo::relocType CodeBlob::reloc_type_for_address(address pc) {
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168 RelocIterator iter(this, pc, pc+1);
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169 while (iter.next()) {
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170 return (relocInfo::relocType) iter.type();
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171 }
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172 // No relocation info found for pc
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173 ShouldNotReachHere();
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174 return relocInfo::none; // dummy return value
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175 }
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176
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177
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178 bool CodeBlob::is_at_poll_return(address pc) {
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179 RelocIterator iter(this, pc, pc+1);
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180 while (iter.next()) {
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181 if (iter.type() == relocInfo::poll_return_type)
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182 return true;
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183 }
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184 return false;
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185 }
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186
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187
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188 bool CodeBlob::is_at_poll_or_poll_return(address pc) {
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189 RelocIterator iter(this, pc, pc+1);
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190 while (iter.next()) {
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191 relocInfo::relocType t = iter.type();
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192 if (t == relocInfo::poll_return_type || t == relocInfo::poll_type)
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193 return true;
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194 }
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195 return false;
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196 }
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197
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198
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199 void CodeBlob::fix_oop_relocations(address begin, address end,
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200 bool initialize_immediates) {
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201 // re-patch all oop-bearing instructions, just in case some oops moved
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202 RelocIterator iter(this, begin, end);
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203 while (iter.next()) {
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204 if (iter.type() == relocInfo::oop_type) {
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205 oop_Relocation* reloc = iter.oop_reloc();
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206 if (initialize_immediates && reloc->oop_is_immediate()) {
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207 oop* dest = reloc->oop_addr();
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208 initialize_immediate_oop(dest, (jobject) *dest);
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209 }
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210 // Refresh the oop-related bits of this instruction.
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211 reloc->fix_oop_relocation();
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212 }
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213
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214 // There must not be any interfering patches or breakpoints.
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215 assert(!(iter.type() == relocInfo::breakpoint_type
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216 && iter.breakpoint_reloc()->active()),
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217 "no active breakpoint");
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218 }
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219 }
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220
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221 void CodeBlob::do_unloading(BoolObjectClosure* is_alive,
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222 OopClosure* keep_alive,
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223 bool unloading_occurred) {
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224 ShouldNotReachHere();
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225 }
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226
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227 OopMap* CodeBlob::oop_map_for_return_address(address return_address) {
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228 address pc = return_address ;
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229 assert (oop_maps() != NULL, "nope");
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230 return oop_maps()->find_map_at_offset ((intptr_t) pc - (intptr_t) instructions_begin());
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231 }
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232
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233
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234 //----------------------------------------------------------------------------------------------------
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235 // Implementation of BufferBlob
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236
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237
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238 BufferBlob::BufferBlob(const char* name, int size)
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239 : CodeBlob(name, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, /*locs_size:*/ 0)
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240 {}
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241
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242 BufferBlob* BufferBlob::create(const char* name, int buffer_size) {
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243 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
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244
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245 BufferBlob* blob = NULL;
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246 unsigned int size = sizeof(BufferBlob);
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247 // align the size to CodeEntryAlignment
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248 size = align_code_offset(size);
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249 size += round_to(buffer_size, oopSize);
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250 assert(name != NULL, "must provide a name");
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251 {
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252
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253 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
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254 blob = new (size) BufferBlob(name, size);
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255 }
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256 // Track memory usage statistic after releasing CodeCache_lock
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257 MemoryService::track_code_cache_memory_usage();
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258
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259 return blob;
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260 }
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261
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262
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263 BufferBlob::BufferBlob(const char* name, int size, CodeBuffer* cb)
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264 : CodeBlob(name, cb, sizeof(BufferBlob), size, CodeOffsets::frame_never_safe, 0, NULL)
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265 {}
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266
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267 BufferBlob* BufferBlob::create(const char* name, CodeBuffer* cb) {
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268 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
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269
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270 BufferBlob* blob = NULL;
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271 unsigned int size = allocation_size(cb, sizeof(BufferBlob));
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272 assert(name != NULL, "must provide a name");
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273 {
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274
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275 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
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276 blob = new (size) BufferBlob(name, size, cb);
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277 }
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278 // Track memory usage statistic after releasing CodeCache_lock
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279 MemoryService::track_code_cache_memory_usage();
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280
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281 return blob;
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282 }
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283
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284
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285 void* BufferBlob::operator new(size_t s, unsigned size) {
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286 void* p = CodeCache::allocate(size);
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287 return p;
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288 }
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289
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290
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291 void BufferBlob::free( BufferBlob *blob ) {
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292 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
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293 {
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294 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
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295 CodeCache::free((CodeBlob*)blob);
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296 }
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297 // Track memory usage statistic after releasing CodeCache_lock
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298 MemoryService::track_code_cache_memory_usage();
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299 }
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300
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301 bool BufferBlob::is_adapter_blob() const {
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302 return (strcmp(AdapterHandlerEntry::name, name()) == 0);
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303 }
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304
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305 //----------------------------------------------------------------------------------------------------
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306 // Implementation of RuntimeStub
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307
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308 RuntimeStub::RuntimeStub(
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309 const char* name,
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310 CodeBuffer* cb,
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311 int size,
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312 int frame_complete,
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313 int frame_size,
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314 OopMapSet* oop_maps,
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315 bool caller_must_gc_arguments
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316 )
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317 : CodeBlob(name, cb, sizeof(RuntimeStub), size, frame_complete, frame_size, oop_maps)
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318 {
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319 _caller_must_gc_arguments = caller_must_gc_arguments;
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320 }
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321
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322
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323 RuntimeStub* RuntimeStub::new_runtime_stub(const char* stub_name,
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324 CodeBuffer* cb,
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325 int frame_complete,
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326 int frame_size,
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327 OopMapSet* oop_maps,
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328 bool caller_must_gc_arguments)
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329 {
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330 RuntimeStub* stub = NULL;
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331 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
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332 {
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333 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
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334 unsigned int size = allocation_size(cb, sizeof(RuntimeStub));
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335 stub = new (size) RuntimeStub(stub_name, cb, size, frame_complete, frame_size, oop_maps, caller_must_gc_arguments);
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336 }
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337
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338 // Do not hold the CodeCache lock during name formatting.
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339 if (stub != NULL) {
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340 char stub_id[256];
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341 jio_snprintf(stub_id, sizeof(stub_id), "RuntimeStub - %s", stub_name);
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342 if (PrintStubCode) {
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343 tty->print_cr("Decoding %s " INTPTR_FORMAT, stub_id, stub);
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344 Disassembler::decode(stub->instructions_begin(), stub->instructions_end());
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345 }
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346 VTune::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end());
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347 Forte::register_stub(stub_id, stub->instructions_begin(), stub->instructions_end());
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348
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349 if (JvmtiExport::should_post_dynamic_code_generated()) {
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350 JvmtiExport::post_dynamic_code_generated(stub_name, stub->instructions_begin(), stub->instructions_end());
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351 }
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352 }
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353
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354 // Track memory usage statistic after releasing CodeCache_lock
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355 MemoryService::track_code_cache_memory_usage();
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356
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357 return stub;
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358 }
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359
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360
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361 void* RuntimeStub::operator new(size_t s, unsigned size) {
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362 void* p = CodeCache::allocate(size);
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363 if (!p) fatal("Initial size of CodeCache is too small");
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364 return p;
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365 }
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366
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367
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368 //----------------------------------------------------------------------------------------------------
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369 // Implementation of DeoptimizationBlob
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370
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371 DeoptimizationBlob::DeoptimizationBlob(
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372 CodeBuffer* cb,
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373 int size,
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374 OopMapSet* oop_maps,
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375 int unpack_offset,
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376 int unpack_with_exception_offset,
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377 int unpack_with_reexecution_offset,
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378 int frame_size
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379 )
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380 : SingletonBlob("DeoptimizationBlob", cb, sizeof(DeoptimizationBlob), size, frame_size, oop_maps)
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381 {
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382 _unpack_offset = unpack_offset;
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383 _unpack_with_exception = unpack_with_exception_offset;
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384 _unpack_with_reexecution = unpack_with_reexecution_offset;
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385 #ifdef COMPILER1
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386 _unpack_with_exception_in_tls = -1;
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387 #endif
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388 }
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389
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390
|
|
|
391 DeoptimizationBlob* DeoptimizationBlob::create(
|
|
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392 CodeBuffer* cb,
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|
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393 OopMapSet* oop_maps,
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|
|
394 int unpack_offset,
|
|
|
395 int unpack_with_exception_offset,
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|
|
396 int unpack_with_reexecution_offset,
|
|
|
397 int frame_size)
|
|
|
398 {
|
|
|
399 DeoptimizationBlob* blob = NULL;
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400 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
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|
|
401 {
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|
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402 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
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|
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403 unsigned int size = allocation_size(cb, sizeof(DeoptimizationBlob));
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404 blob = new (size) DeoptimizationBlob(cb,
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|
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405 size,
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|
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406 oop_maps,
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407 unpack_offset,
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408 unpack_with_exception_offset,
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409 unpack_with_reexecution_offset,
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|
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410 frame_size);
|
|
|
411 }
|
|
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412
|
|
|
413 // Do not hold the CodeCache lock during name formatting.
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|
|
414 if (blob != NULL) {
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|
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415 char blob_id[256];
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416 jio_snprintf(blob_id, sizeof(blob_id), "DeoptimizationBlob@" PTR_FORMAT, blob->instructions_begin());
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|
|
417 if (PrintStubCode) {
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|
|
418 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
|
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|
419 Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
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|
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420 }
|
|
|
421 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
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|
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422 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
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|
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423
|
|
|
424 if (JvmtiExport::should_post_dynamic_code_generated()) {
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|
|
425 JvmtiExport::post_dynamic_code_generated("DeoptimizationBlob",
|
|
|
426 blob->instructions_begin(),
|
|
|
427 blob->instructions_end());
|
|
|
428 }
|
|
|
429 }
|
|
|
430
|
|
|
431 // Track memory usage statistic after releasing CodeCache_lock
|
|
|
432 MemoryService::track_code_cache_memory_usage();
|
|
|
433
|
|
|
434 return blob;
|
|
|
435 }
|
|
|
436
|
|
|
437
|
|
|
438 void* DeoptimizationBlob::operator new(size_t s, unsigned size) {
|
|
|
439 void* p = CodeCache::allocate(size);
|
|
|
440 if (!p) fatal("Initial size of CodeCache is too small");
|
|
|
441 return p;
|
|
|
442 }
|
|
|
443
|
|
|
444 //----------------------------------------------------------------------------------------------------
|
|
|
445 // Implementation of UncommonTrapBlob
|
|
|
446
|
|
|
447 #ifdef COMPILER2
|
|
|
448 UncommonTrapBlob::UncommonTrapBlob(
|
|
|
449 CodeBuffer* cb,
|
|
|
450 int size,
|
|
|
451 OopMapSet* oop_maps,
|
|
|
452 int frame_size
|
|
|
453 )
|
|
|
454 : SingletonBlob("UncommonTrapBlob", cb, sizeof(UncommonTrapBlob), size, frame_size, oop_maps)
|
|
|
455 {}
|
|
|
456
|
|
|
457
|
|
|
458 UncommonTrapBlob* UncommonTrapBlob::create(
|
|
|
459 CodeBuffer* cb,
|
|
|
460 OopMapSet* oop_maps,
|
|
|
461 int frame_size)
|
|
|
462 {
|
|
|
463 UncommonTrapBlob* blob = NULL;
|
|
|
464 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
|
|
|
465 {
|
|
|
466 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
|
|
|
467 unsigned int size = allocation_size(cb, sizeof(UncommonTrapBlob));
|
|
|
468 blob = new (size) UncommonTrapBlob(cb, size, oop_maps, frame_size);
|
|
|
469 }
|
|
|
470
|
|
|
471 // Do not hold the CodeCache lock during name formatting.
|
|
|
472 if (blob != NULL) {
|
|
|
473 char blob_id[256];
|
|
|
474 jio_snprintf(blob_id, sizeof(blob_id), "UncommonTrapBlob@" PTR_FORMAT, blob->instructions_begin());
|
|
|
475 if (PrintStubCode) {
|
|
|
476 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
|
|
|
477 Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
|
|
|
478 }
|
|
|
479 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
|
|
|
480 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
|
|
|
481
|
|
|
482 if (JvmtiExport::should_post_dynamic_code_generated()) {
|
|
|
483 JvmtiExport::post_dynamic_code_generated("UncommonTrapBlob",
|
|
|
484 blob->instructions_begin(),
|
|
|
485 blob->instructions_end());
|
|
|
486 }
|
|
|
487 }
|
|
|
488
|
|
|
489 // Track memory usage statistic after releasing CodeCache_lock
|
|
|
490 MemoryService::track_code_cache_memory_usage();
|
|
|
491
|
|
|
492 return blob;
|
|
|
493 }
|
|
|
494
|
|
|
495
|
|
|
496 void* UncommonTrapBlob::operator new(size_t s, unsigned size) {
|
|
|
497 void* p = CodeCache::allocate(size);
|
|
|
498 if (!p) fatal("Initial size of CodeCache is too small");
|
|
|
499 return p;
|
|
|
500 }
|
|
|
501 #endif // COMPILER2
|
|
|
502
|
|
|
503
|
|
|
504 //----------------------------------------------------------------------------------------------------
|
|
|
505 // Implementation of ExceptionBlob
|
|
|
506
|
|
|
507 #ifdef COMPILER2
|
|
|
508 ExceptionBlob::ExceptionBlob(
|
|
|
509 CodeBuffer* cb,
|
|
|
510 int size,
|
|
|
511 OopMapSet* oop_maps,
|
|
|
512 int frame_size
|
|
|
513 )
|
|
|
514 : SingletonBlob("ExceptionBlob", cb, sizeof(ExceptionBlob), size, frame_size, oop_maps)
|
|
|
515 {}
|
|
|
516
|
|
|
517
|
|
|
518 ExceptionBlob* ExceptionBlob::create(
|
|
|
519 CodeBuffer* cb,
|
|
|
520 OopMapSet* oop_maps,
|
|
|
521 int frame_size)
|
|
|
522 {
|
|
|
523 ExceptionBlob* blob = NULL;
|
|
|
524 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
|
|
|
525 {
|
|
|
526 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
|
|
|
527 unsigned int size = allocation_size(cb, sizeof(ExceptionBlob));
|
|
|
528 blob = new (size) ExceptionBlob(cb, size, oop_maps, frame_size);
|
|
|
529 }
|
|
|
530
|
|
|
531 // We do not need to hold the CodeCache lock during name formatting
|
|
|
532 if (blob != NULL) {
|
|
|
533 char blob_id[256];
|
|
|
534 jio_snprintf(blob_id, sizeof(blob_id), "ExceptionBlob@" PTR_FORMAT, blob->instructions_begin());
|
|
|
535 if (PrintStubCode) {
|
|
|
536 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
|
|
|
537 Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
|
|
|
538 }
|
|
|
539 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
|
|
|
540 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
|
|
|
541
|
|
|
542 if (JvmtiExport::should_post_dynamic_code_generated()) {
|
|
|
543 JvmtiExport::post_dynamic_code_generated("ExceptionBlob",
|
|
|
544 blob->instructions_begin(),
|
|
|
545 blob->instructions_end());
|
|
|
546 }
|
|
|
547 }
|
|
|
548
|
|
|
549 // Track memory usage statistic after releasing CodeCache_lock
|
|
|
550 MemoryService::track_code_cache_memory_usage();
|
|
|
551
|
|
|
552 return blob;
|
|
|
553 }
|
|
|
554
|
|
|
555
|
|
|
556 void* ExceptionBlob::operator new(size_t s, unsigned size) {
|
|
|
557 void* p = CodeCache::allocate(size);
|
|
|
558 if (!p) fatal("Initial size of CodeCache is too small");
|
|
|
559 return p;
|
|
|
560 }
|
|
|
561 #endif // COMPILER2
|
|
|
562
|
|
|
563
|
|
|
564 //----------------------------------------------------------------------------------------------------
|
|
|
565 // Implementation of SafepointBlob
|
|
|
566
|
|
|
567 SafepointBlob::SafepointBlob(
|
|
|
568 CodeBuffer* cb,
|
|
|
569 int size,
|
|
|
570 OopMapSet* oop_maps,
|
|
|
571 int frame_size
|
|
|
572 )
|
|
|
573 : SingletonBlob("SafepointBlob", cb, sizeof(SafepointBlob), size, frame_size, oop_maps)
|
|
|
574 {}
|
|
|
575
|
|
|
576
|
|
|
577 SafepointBlob* SafepointBlob::create(
|
|
|
578 CodeBuffer* cb,
|
|
|
579 OopMapSet* oop_maps,
|
|
|
580 int frame_size)
|
|
|
581 {
|
|
|
582 SafepointBlob* blob = NULL;
|
|
|
583 ThreadInVMfromUnknown __tiv; // get to VM state in case we block on CodeCache_lock
|
|
|
584 {
|
|
|
585 MutexLockerEx mu(CodeCache_lock, Mutex::_no_safepoint_check_flag);
|
|
|
586 unsigned int size = allocation_size(cb, sizeof(SafepointBlob));
|
|
|
587 blob = new (size) SafepointBlob(cb, size, oop_maps, frame_size);
|
|
|
588 }
|
|
|
589
|
|
|
590 // We do not need to hold the CodeCache lock during name formatting.
|
|
|
591 if (blob != NULL) {
|
|
|
592 char blob_id[256];
|
|
|
593 jio_snprintf(blob_id, sizeof(blob_id), "SafepointBlob@" PTR_FORMAT, blob->instructions_begin());
|
|
|
594 if (PrintStubCode) {
|
|
|
595 tty->print_cr("Decoding %s " INTPTR_FORMAT, blob_id, blob);
|
|
|
596 Disassembler::decode(blob->instructions_begin(), blob->instructions_end());
|
|
|
597 }
|
|
|
598 VTune::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
|
|
|
599 Forte::register_stub(blob_id, blob->instructions_begin(), blob->instructions_end());
|
|
|
600
|
|
|
601 if (JvmtiExport::should_post_dynamic_code_generated()) {
|
|
|
602 JvmtiExport::post_dynamic_code_generated("SafepointBlob",
|
|
|
603 blob->instructions_begin(),
|
|
|
604 blob->instructions_end());
|
|
|
605 }
|
|
|
606 }
|
|
|
607
|
|
|
608 // Track memory usage statistic after releasing CodeCache_lock
|
|
|
609 MemoryService::track_code_cache_memory_usage();
|
|
|
610
|
|
|
611 return blob;
|
|
|
612 }
|
|
|
613
|
|
|
614
|
|
|
615 void* SafepointBlob::operator new(size_t s, unsigned size) {
|
|
|
616 void* p = CodeCache::allocate(size);
|
|
|
617 if (!p) fatal("Initial size of CodeCache is too small");
|
|
|
618 return p;
|
|
|
619 }
|
|
|
620
|
|
|
621
|
|
|
622 //----------------------------------------------------------------------------------------------------
|
|
|
623 // Verification and printing
|
|
|
624
|
|
|
625 void CodeBlob::verify() {
|
|
|
626 ShouldNotReachHere();
|
|
|
627 }
|
|
|
628
|
|
|
629 #ifndef PRODUCT
|
|
|
630
|
|
|
631 void CodeBlob::print() const {
|
|
|
632 tty->print_cr("[CodeBlob (" INTPTR_FORMAT ")]", this);
|
|
|
633 tty->print_cr("Framesize: %d", _frame_size);
|
|
|
634 }
|
|
|
635
|
|
|
636
|
|
|
637 void CodeBlob::print_value_on(outputStream* st) const {
|
|
|
638 st->print_cr("[CodeBlob]");
|
|
|
639 }
|
|
|
640
|
|
|
641 #endif
|
|
|
642
|
|
|
643 void BufferBlob::verify() {
|
|
|
644 // unimplemented
|
|
|
645 }
|
|
|
646
|
|
|
647 #ifndef PRODUCT
|
|
|
648
|
|
|
649 void BufferBlob::print() const {
|
|
|
650 CodeBlob::print();
|
|
|
651 print_value_on(tty);
|
|
|
652 }
|
|
|
653
|
|
|
654
|
|
|
655 void BufferBlob::print_value_on(outputStream* st) const {
|
|
|
656 st->print_cr("BufferBlob (" INTPTR_FORMAT ") used for %s", this, name());
|
|
|
657 }
|
|
|
658
|
|
|
659
|
|
|
660 #endif
|
|
|
661
|
|
|
662 void RuntimeStub::verify() {
|
|
|
663 // unimplemented
|
|
|
664 }
|
|
|
665
|
|
|
666 #ifndef PRODUCT
|
|
|
667
|
|
|
668 void RuntimeStub::print() const {
|
|
|
669 CodeBlob::print();
|
|
|
670 tty->print("Runtime Stub (" INTPTR_FORMAT "): ", this);
|
|
|
671 tty->print_cr(name());
|
|
|
672 Disassembler::decode((CodeBlob*)this);
|
|
|
673 }
|
|
|
674
|
|
|
675
|
|
|
676 void RuntimeStub::print_value_on(outputStream* st) const {
|
|
|
677 st->print("RuntimeStub (" INTPTR_FORMAT "): ", this); st->print(name());
|
|
|
678 }
|
|
|
679
|
|
|
680 #endif
|
|
|
681
|
|
|
682 void SingletonBlob::verify() {
|
|
|
683 // unimplemented
|
|
|
684 }
|
|
|
685
|
|
|
686 #ifndef PRODUCT
|
|
|
687
|
|
|
688 void SingletonBlob::print() const {
|
|
|
689 CodeBlob::print();
|
|
|
690 tty->print_cr(name());
|
|
|
691 Disassembler::decode((CodeBlob*)this);
|
|
|
692 }
|
|
|
693
|
|
|
694
|
|
|
695 void SingletonBlob::print_value_on(outputStream* st) const {
|
|
|
696 st->print_cr(name());
|
|
|
697 }
|
|
|
698
|
|
|
699 void DeoptimizationBlob::print_value_on(outputStream* st) const {
|
|
|
700 st->print_cr("Deoptimization (frame not available)");
|
|
|
701 }
|
|
|
702
|
|
|
703 #endif // PRODUCT
|
