Mercurial > hg > truffle
annotate src/share/vm/ci/ciReplay.cpp @ 6972:bd7a7ce2e264
6830717: replay of compilations would help with debugging
Summary: When java process crashed in compiler thread, repeat the compilation process will help finding root cause. This is done with using SA dump application class data and replay data from core dump, then use debug version of jvm to recompile the problematic java method.
Reviewed-by: kvn, twisti, sspitsyn
Contributed-by: yumin.qi@oracle.com
author | minqi |
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date | Mon, 12 Nov 2012 14:03:53 -0800 |
parents | |
children | 90273fc0a981 |
rev | line source |
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1 /* Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved. |
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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3 * |
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4 * This code is free software; you can redistribute it and/or modify it |
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5 * under the terms of the GNU General Public License version 2 only, as |
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6 * published by the Free Software Foundation. |
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7 * |
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8 * This code is distributed in the hope that it will be useful, but WITHOUT |
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9 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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10 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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11 * version 2 for more details (a copy is included in the LICENSE file that |
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12 * accompanied this code). |
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13 * |
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14 * You should have received a copy of the GNU General Public License version |
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15 * 2 along with this work; if not, write to the Free Software Foundation, |
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16 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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17 * |
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18 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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19 * or visit www.oracle.com if you need additional information or have any |
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20 * questions. |
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21 * |
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22 */ |
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23 |
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24 #include "precompiled.hpp" |
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25 #include "ci/ciMethodData.hpp" |
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26 #include "ci/ciReplay.hpp" |
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27 #include "ci/ciUtilities.hpp" |
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28 #include "compiler/compileBroker.hpp" |
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29 #include "memory/allocation.inline.hpp" |
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30 #include "memory/oopFactory.hpp" |
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31 #include "memory/resourceArea.hpp" |
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32 #include "utilities/copy.hpp" |
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33 |
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34 #ifdef ASSERT |
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35 |
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36 // ciReplay |
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37 |
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38 typedef struct _ciMethodDataRecord { |
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39 const char* klass; |
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40 const char* method; |
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41 const char* signature; |
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42 int state; |
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43 int current_mileage; |
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44 intptr_t* data; |
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45 int data_length; |
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46 char* orig_data; |
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47 int orig_data_length; |
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48 int oops_length; |
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49 jobject* oops_handles; |
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50 int* oops_offsets; |
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51 } ciMethodDataRecord; |
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52 |
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53 typedef struct _ciMethodRecord { |
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54 const char* klass; |
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55 const char* method; |
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56 const char* signature; |
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57 int instructions_size; |
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58 int interpreter_invocation_count; |
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59 int interpreter_throwout_count; |
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60 int invocation_counter; |
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61 int backedge_counter; |
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62 } ciMethodRecord; |
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63 |
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64 class CompileReplay; |
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65 static CompileReplay* replay_state; |
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66 |
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67 class CompileReplay : public StackObj { |
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68 private: |
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69 FILE* stream; |
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70 Thread* thread; |
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71 Handle protection_domain; |
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72 Handle loader; |
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73 |
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74 GrowableArray<ciMethodRecord*> ci_method_records; |
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75 GrowableArray<ciMethodDataRecord*> ci_method_data_records; |
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76 |
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77 const char* _error_message; |
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78 |
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79 char* bufptr; |
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80 char* buffer; |
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81 int buffer_length; |
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82 int buffer_end; |
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83 int line_no; |
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84 |
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85 public: |
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86 CompileReplay(const char* filename, TRAPS) { |
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87 thread = THREAD; |
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88 loader = Handle(thread, SystemDictionary::java_system_loader()); |
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89 stream = fopen(filename, "rt"); |
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90 if (stream == NULL) { |
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91 fprintf(stderr, "Can't open replay file %s\n", filename); |
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92 } |
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93 buffer_length = 32; |
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94 buffer = NEW_RESOURCE_ARRAY(char, buffer_length); |
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95 _error_message = NULL; |
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96 |
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97 test(); |
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98 } |
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99 |
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100 ~CompileReplay() { |
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101 if (stream != NULL) fclose(stream); |
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102 } |
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103 |
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104 void test() { |
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105 strcpy(buffer, "1 2 foo 4 bar 0x9 \"this is it\""); |
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106 bufptr = buffer; |
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107 assert(parse_int("test") == 1, "what"); |
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108 assert(parse_int("test") == 2, "what"); |
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109 assert(strcmp(parse_string(), "foo") == 0, "what"); |
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110 assert(parse_int("test") == 4, "what"); |
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111 assert(strcmp(parse_string(), "bar") == 0, "what"); |
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112 assert(parse_intptr_t("test") == 9, "what"); |
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113 assert(strcmp(parse_quoted_string(), "this is it") == 0, "what"); |
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114 } |
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115 |
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116 bool had_error() { |
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117 return _error_message != NULL || thread->has_pending_exception(); |
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118 } |
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119 |
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120 bool can_replay() { |
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121 return !(stream == NULL || had_error()); |
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122 } |
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123 |
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124 void report_error(const char* msg) { |
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125 _error_message = msg; |
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126 // Restore the buffer contents for error reporting |
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127 for (int i = 0; i < buffer_end; i++) { |
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128 if (buffer[i] == '\0') buffer[i] = ' '; |
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129 } |
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130 } |
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131 |
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132 int parse_int(const char* label) { |
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133 if (had_error()) { |
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134 return 0; |
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135 } |
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136 |
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137 int v = 0; |
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138 int read; |
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139 if (sscanf(bufptr, "%i%n", &v, &read) != 1) { |
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140 report_error(label); |
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141 } else { |
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142 bufptr += read; |
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143 } |
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144 return v; |
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145 } |
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146 |
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147 intptr_t parse_intptr_t(const char* label) { |
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148 if (had_error()) { |
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149 return 0; |
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150 } |
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151 |
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152 intptr_t v = 0; |
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153 int read; |
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154 if (sscanf(bufptr, INTPTR_FORMAT "%n", &v, &read) != 1) { |
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155 report_error(label); |
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156 } else { |
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157 bufptr += read; |
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158 } |
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159 return v; |
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160 } |
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161 |
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162 void skip_ws() { |
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163 // Skip any leading whitespace |
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164 while (*bufptr == ' ' || *bufptr == '\t') { |
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165 bufptr++; |
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166 } |
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167 } |
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168 |
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169 |
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170 char* scan_and_terminate(char delim) { |
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171 char* str = bufptr; |
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172 while (*bufptr != delim && *bufptr != '\0') { |
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173 bufptr++; |
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174 } |
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175 if (*bufptr != '\0') { |
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176 *bufptr++ = '\0'; |
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177 } |
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178 if (bufptr == str) { |
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179 // nothing here |
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180 return NULL; |
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181 } |
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182 return str; |
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183 } |
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184 |
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185 char* parse_string() { |
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186 if (had_error()) return NULL; |
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187 |
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188 skip_ws(); |
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189 return scan_and_terminate(' '); |
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190 } |
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191 |
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192 char* parse_quoted_string() { |
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193 if (had_error()) return NULL; |
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194 |
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195 skip_ws(); |
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196 |
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197 if (*bufptr == '"') { |
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198 bufptr++; |
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199 return scan_and_terminate('"'); |
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200 } else { |
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201 return scan_and_terminate(' '); |
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202 } |
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203 } |
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204 |
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205 const char* parse_escaped_string() { |
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206 char* result = parse_quoted_string(); |
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207 if (result != NULL) { |
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208 unescape_string(result); |
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209 } |
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210 return result; |
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211 } |
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212 |
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213 // Look for the tag 'tag' followed by an |
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214 bool parse_tag_and_count(const char* tag, int& length) { |
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215 const char* t = parse_string(); |
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216 if (t == NULL) { |
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217 return false; |
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218 } |
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219 |
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220 if (strcmp(tag, t) != 0) { |
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221 report_error(tag); |
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222 return false; |
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223 } |
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224 length = parse_int("parse_tag_and_count"); |
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225 return !had_error(); |
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226 } |
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227 |
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228 // Parse a sequence of raw data encoded as bytes and return the |
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229 // resulting data. |
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230 char* parse_data(const char* tag, int& length) { |
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231 if (!parse_tag_and_count(tag, length)) { |
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232 return NULL; |
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233 } |
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234 |
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235 char * result = NEW_RESOURCE_ARRAY(char, length); |
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236 for (int i = 0; i < length; i++) { |
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237 int val = parse_int("data"); |
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238 result[i] = val; |
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239 } |
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240 return result; |
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241 } |
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242 |
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243 // Parse a standard chunk of data emitted as: |
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244 // 'tag' <length> # # ... |
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245 // Where each # is an intptr_t item |
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246 intptr_t* parse_intptr_data(const char* tag, int& length) { |
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247 if (!parse_tag_and_count(tag, length)) { |
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248 return NULL; |
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249 } |
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250 |
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251 intptr_t* result = NEW_RESOURCE_ARRAY(intptr_t, length); |
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252 for (int i = 0; i < length; i++) { |
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253 skip_ws(); |
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254 intptr_t val = parse_intptr_t("data"); |
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255 result[i] = val; |
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256 } |
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257 return result; |
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258 } |
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259 |
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260 // Parse a possibly quoted version of a symbol into a symbolOop |
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261 Symbol* parse_symbol(TRAPS) { |
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262 const char* str = parse_escaped_string(); |
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263 if (str != NULL) { |
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264 Symbol* sym = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL); |
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265 return sym; |
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266 } |
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267 return NULL; |
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268 } |
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269 |
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270 // Parse a valid klass name and look it up |
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271 Klass* parse_klass(TRAPS) { |
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272 const char* str = parse_escaped_string(); |
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273 Symbol* klass_name = SymbolTable::lookup(str, (int)strlen(str), CHECK_NULL); |
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274 if (klass_name != NULL) { |
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275 Klass* k = SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, THREAD); |
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276 if (HAS_PENDING_EXCEPTION) { |
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277 oop throwable = PENDING_EXCEPTION; |
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278 java_lang_Throwable::print(throwable, tty); |
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279 tty->cr(); |
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280 report_error(str); |
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281 return NULL; |
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282 } |
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283 return k; |
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284 } |
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285 return NULL; |
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286 } |
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287 |
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288 // Lookup a klass |
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289 Klass* resolve_klass(const char* klass, TRAPS) { |
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290 Symbol* klass_name = SymbolTable::lookup(klass, (int)strlen(klass), CHECK_NULL); |
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291 return SystemDictionary::resolve_or_fail(klass_name, loader, protection_domain, true, CHECK_NULL); |
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292 } |
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293 |
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294 // Parse the standard tuple of <klass> <name> <signature> |
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295 Method* parse_method(TRAPS) { |
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296 InstanceKlass* k = (InstanceKlass*)parse_klass(CHECK_NULL); |
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297 Symbol* method_name = parse_symbol(CHECK_NULL); |
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298 Symbol* method_signature = parse_symbol(CHECK_NULL); |
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299 Method* m = k->find_method(method_name, method_signature); |
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300 if (m == NULL) { |
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301 report_error("can't find method"); |
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302 } |
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303 return m; |
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304 } |
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305 |
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306 // Process each line of the replay file executing each command until |
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307 // the file ends. |
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308 void process(TRAPS) { |
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309 line_no = 1; |
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310 int pos = 0; |
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311 int c = getc(stream); |
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312 while(c != EOF) { |
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313 if (pos + 1 >= buffer_length) { |
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314 int newl = buffer_length * 2; |
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315 char* newb = NEW_RESOURCE_ARRAY(char, newl); |
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316 memcpy(newb, buffer, pos); |
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317 buffer = newb; |
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318 buffer_length = newl; |
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319 } |
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320 if (c == '\n') { |
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321 // null terminate it, reset the pointer and process the line |
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322 buffer[pos] = '\0'; |
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323 buffer_end = pos++; |
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324 bufptr = buffer; |
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325 process_command(CHECK); |
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326 if (had_error()) { |
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327 tty->print_cr("Error while parsing line %d: %s\n", line_no, _error_message); |
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328 tty->print_cr("%s", buffer); |
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329 assert(false, "error"); |
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330 return; |
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331 } |
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332 pos = 0; |
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333 buffer_end = 0; |
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334 line_no++; |
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335 } else if (c == '\r') { |
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336 // skip LF |
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337 } else { |
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338 buffer[pos++] = c; |
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339 } |
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340 c = getc(stream); |
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341 } |
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342 } |
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343 |
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344 void process_command(TRAPS) { |
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345 char* cmd = parse_string(); |
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346 if (cmd == NULL) { |
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347 return; |
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348 } |
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349 if (strcmp("#", cmd) == 0) { |
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350 // ignore |
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351 } else if (strcmp("compile", cmd) == 0) { |
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352 process_compile(CHECK); |
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353 } else if (strcmp("ciMethod", cmd) == 0) { |
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354 process_ciMethod(CHECK); |
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355 } else if (strcmp("ciMethodData", cmd) == 0) { |
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356 process_ciMethodData(CHECK); |
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357 } else if (strcmp("staticfield", cmd) == 0) { |
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358 process_staticfield(CHECK); |
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359 } else if (strcmp("ciInstanceKlass", cmd) == 0) { |
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360 process_ciInstanceKlass(CHECK); |
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361 } else if (strcmp("instanceKlass", cmd) == 0) { |
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362 process_instanceKlass(CHECK); |
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363 #if INCLUDE_JVMTI |
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364 } else if (strcmp("JvmtiExport", cmd) == 0) { |
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365 process_JvmtiExport(CHECK); |
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366 #endif // INCLUDE_JVMTI |
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367 } else { |
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368 report_error("unknown command"); |
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369 } |
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370 } |
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371 |
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372 // compile <klass> <name> <signature> <entry_bci> |
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373 void process_compile(TRAPS) { |
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374 // methodHandle method; |
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375 Method* method = parse_method(CHECK); |
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376 int entry_bci = parse_int("entry_bci"); |
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377 Klass* k = method->method_holder(); |
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378 ((InstanceKlass*)k)->initialize(THREAD); |
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379 if (HAS_PENDING_EXCEPTION) { |
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380 oop throwable = PENDING_EXCEPTION; |
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381 java_lang_Throwable::print(throwable, tty); |
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382 tty->cr(); |
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383 if (ReplayIgnoreInitErrors) { |
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384 CLEAR_PENDING_EXCEPTION; |
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385 ((InstanceKlass*)k)->set_init_state(InstanceKlass::fully_initialized); |
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386 } else { |
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387 return; |
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388 } |
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389 } |
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390 // Make sure the existence of a prior compile doesn't stop this one |
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391 nmethod* nm = (entry_bci != InvocationEntryBci) ? method->lookup_osr_nmethod_for(entry_bci, CompLevel_full_optimization, true) : method->code(); |
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392 if (nm != NULL) { |
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393 nm->make_not_entrant(); |
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394 } |
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395 replay_state = this; |
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396 CompileBroker::compile_method(method, entry_bci, CompLevel_full_optimization, |
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397 methodHandle(), 0, "replay", THREAD); |
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398 replay_state = NULL; |
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399 reset(); |
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400 } |
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401 |
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402 // ciMethod <klass> <name> <signature> <invocation_counter> <backedge_counter> <interpreter_invocation_count> <interpreter_throwout_count> <instructions_size> |
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403 // |
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404 // |
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405 void process_ciMethod(TRAPS) { |
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406 Method* method = parse_method(CHECK); |
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407 ciMethodRecord* rec = new_ciMethod(method); |
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408 rec->invocation_counter = parse_int("invocation_counter"); |
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409 rec->backedge_counter = parse_int("backedge_counter"); |
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410 rec->interpreter_invocation_count = parse_int("interpreter_invocation_count"); |
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411 rec->interpreter_throwout_count = parse_int("interpreter_throwout_count"); |
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412 rec->instructions_size = parse_int("instructions_size"); |
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413 } |
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414 |
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415 // ciMethodData <klass> <name> <signature> <state> <current mileage> orig <length> # # ... data <length> # # ... oops <length> |
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416 void process_ciMethodData(TRAPS) { |
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417 Method* method = parse_method(CHECK); |
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418 /* jsut copied from Method, to build interpret data*/ |
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419 if (InstanceRefKlass::owns_pending_list_lock((JavaThread*)THREAD)) { |
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420 return; |
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421 } |
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422 // methodOopDesc::build_interpreter_method_data(method, CHECK); |
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423 { |
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424 // Grab a lock here to prevent multiple |
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425 // MethodData*s from being created. |
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426 MutexLocker ml(MethodData_lock, THREAD); |
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427 if (method->method_data() == NULL) { |
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428 ClassLoaderData* loader_data = method->method_holder()->class_loader_data(); |
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429 MethodData* method_data = MethodData::allocate(loader_data, method, CHECK); |
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430 method->set_method_data(method_data); |
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431 } |
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432 } |
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433 |
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434 // collect and record all the needed information for later |
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435 ciMethodDataRecord* rec = new_ciMethodData(method); |
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436 rec->state = parse_int("state"); |
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437 rec->current_mileage = parse_int("current_mileage"); |
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438 |
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439 rec->orig_data = parse_data("orig", rec->orig_data_length); |
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440 if (rec->orig_data == NULL) { |
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441 return; |
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442 } |
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443 rec->data = parse_intptr_data("data", rec->data_length); |
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444 if (rec->data == NULL) { |
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6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
445 return; |
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6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
446 } |
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6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
447 if (!parse_tag_and_count("oops", rec->oops_length)) { |
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minqi
parents:
diff
changeset
|
448 return; |
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6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
449 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
450 rec->oops_handles = NEW_RESOURCE_ARRAY(jobject, rec->oops_length); |
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minqi
parents:
diff
changeset
|
451 rec->oops_offsets = NEW_RESOURCE_ARRAY(int, rec->oops_length); |
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minqi
parents:
diff
changeset
|
452 for (int i = 0; i < rec->oops_length; i++) { |
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minqi
parents:
diff
changeset
|
453 int offset = parse_int("offset"); |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
454 if (had_error()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
455 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
456 } |
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6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
457 Klass* k = parse_klass(CHECK); |
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minqi
parents:
diff
changeset
|
458 rec->oops_offsets[i] = offset; |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
459 rec->oops_handles[i] = (jobject)(new KlassHandle(THREAD, k)); |
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minqi
parents:
diff
changeset
|
460 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
461 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
462 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
463 // instanceKlass <name> |
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minqi
parents:
diff
changeset
|
464 // |
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minqi
parents:
diff
changeset
|
465 // Loads and initializes the klass 'name'. This can be used to |
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minqi
parents:
diff
changeset
|
466 // create particular class loading environments |
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minqi
parents:
diff
changeset
|
467 void process_instanceKlass(TRAPS) { |
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minqi
parents:
diff
changeset
|
468 // just load the referenced class |
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minqi
parents:
diff
changeset
|
469 Klass* k = parse_klass(CHECK); |
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minqi
parents:
diff
changeset
|
470 } |
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minqi
parents:
diff
changeset
|
471 |
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minqi
parents:
diff
changeset
|
472 // ciInstanceKlass <name> <is_linked> <is_initialized> <length> tag # # # ... |
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minqi
parents:
diff
changeset
|
473 // |
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minqi
parents:
diff
changeset
|
474 // Load the klass 'name' and link or initialize it. Verify that the |
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minqi
parents:
diff
changeset
|
475 // constant pool is the same length as 'length' and make sure the |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
476 // constant pool tags are in the same state. |
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minqi
parents:
diff
changeset
|
477 void process_ciInstanceKlass(TRAPS) { |
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minqi
parents:
diff
changeset
|
478 InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK); |
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minqi
parents:
diff
changeset
|
479 int is_linked = parse_int("is_linked"); |
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minqi
parents:
diff
changeset
|
480 int is_initialized = parse_int("is_initialized"); |
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minqi
parents:
diff
changeset
|
481 int length = parse_int("length"); |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
482 if (is_initialized) { |
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minqi
parents:
diff
changeset
|
483 k->initialize(THREAD); |
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minqi
parents:
diff
changeset
|
484 if (HAS_PENDING_EXCEPTION) { |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
485 oop throwable = PENDING_EXCEPTION; |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
486 java_lang_Throwable::print(throwable, tty); |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
487 tty->cr(); |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
488 if (ReplayIgnoreInitErrors) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
489 CLEAR_PENDING_EXCEPTION; |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
490 k->set_init_state(InstanceKlass::fully_initialized); |
bd7a7ce2e264
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minqi
parents:
diff
changeset
|
491 } else { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
492 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
493 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
494 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
495 } else if (is_linked) { |
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minqi
parents:
diff
changeset
|
496 k->link_class(CHECK); |
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minqi
parents:
diff
changeset
|
497 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
498 ConstantPool* cp = k->constants(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
499 if (length != cp->length()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
500 report_error("constant pool length mismatch: wrong class files?"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
501 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
502 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
503 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
504 int parsed_two_word = 0; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
505 for (int i = 1; i < length; i++) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
506 int tag = parse_int("tag"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
507 if (had_error()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
508 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
509 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
510 switch (cp->tag_at(i).value()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
511 case JVM_CONSTANT_UnresolvedClass: { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
512 if (tag == JVM_CONSTANT_Class) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
513 tty->print_cr("Resolving klass %s at %d", cp->unresolved_klass_at(i)->as_utf8(), i); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
514 Klass* k = cp->klass_at(i, CHECK); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
515 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
516 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
517 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
518 case JVM_CONSTANT_Long: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
519 case JVM_CONSTANT_Double: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
520 parsed_two_word = i + 1; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
521 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
522 case JVM_CONSTANT_ClassIndex: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
523 case JVM_CONSTANT_StringIndex: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
524 case JVM_CONSTANT_String: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
525 case JVM_CONSTANT_UnresolvedClassInError: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
526 case JVM_CONSTANT_Fieldref: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
527 case JVM_CONSTANT_Methodref: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
528 case JVM_CONSTANT_InterfaceMethodref: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
529 case JVM_CONSTANT_NameAndType: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
530 case JVM_CONSTANT_Utf8: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
531 case JVM_CONSTANT_Integer: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
532 case JVM_CONSTANT_Float: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
533 if (tag != cp->tag_at(i).value()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
534 report_error("tag mismatch: wrong class files?"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
535 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
536 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
537 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
538 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
539 case JVM_CONSTANT_Class: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
540 if (tag == JVM_CONSTANT_Class) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
541 } else if (tag == JVM_CONSTANT_UnresolvedClass) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
542 tty->print_cr("Warning: entry was unresolved in the replay data"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
543 } else { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
544 report_error("Unexpected tag"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
545 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
546 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
547 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
548 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
549 case 0: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
550 if (parsed_two_word == i) continue; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
551 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
552 default: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
553 ShouldNotReachHere(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
554 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
555 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
556 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
557 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
558 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
559 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
560 // Initialize a class and fill in the value for a static field. |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
561 // This is useful when the compile was dependent on the value of |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
562 // static fields but it's impossible to properly rerun the static |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
563 // initiailizer. |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
564 void process_staticfield(TRAPS) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
565 InstanceKlass* k = (InstanceKlass *)parse_klass(CHECK); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
566 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
567 if (ReplaySuppressInitializers == 0 || |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
568 ReplaySuppressInitializers == 2 && k->class_loader() == NULL) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
569 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
570 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
571 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
572 assert(k->is_initialized(), "must be"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
573 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
574 const char* field_name = parse_escaped_string();; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
575 const char* field_signature = parse_string(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
576 fieldDescriptor fd; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
577 Symbol* name = SymbolTable::lookup(field_name, (int)strlen(field_name), CHECK); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
578 Symbol* sig = SymbolTable::lookup(field_signature, (int)strlen(field_signature), CHECK); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
579 if (!k->find_local_field(name, sig, &fd) || |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
580 !fd.is_static() || |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
581 fd.has_initial_value()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
582 report_error(field_name); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
583 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
584 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
585 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
586 oop java_mirror = k->java_mirror(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
587 if (field_signature[0] == '[') { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
588 int length = parse_int("array length"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
589 oop value = NULL; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
590 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
591 if (field_signature[1] == '[') { |
bd7a7ce2e264
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minqi
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592 // multi dimensional array |
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593 ArrayKlass* kelem = (ArrayKlass *)parse_klass(CHECK); |
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594 int rank = 0; |
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595 while (field_signature[rank] == '[') { |
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596 rank++; |
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597 } |
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598 int* dims = NEW_RESOURCE_ARRAY(int, rank); |
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599 dims[0] = length; |
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600 for (int i = 1; i < rank; i++) { |
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601 dims[i] = 1; // These aren't relevant to the compiler |
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602 } |
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603 value = kelem->multi_allocate(rank, dims, CHECK); |
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604 } else { |
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605 if (strcmp(field_signature, "[B") == 0) { |
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606 value = oopFactory::new_byteArray(length, CHECK); |
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607 } else if (strcmp(field_signature, "[Z") == 0) { |
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608 value = oopFactory::new_boolArray(length, CHECK); |
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609 } else if (strcmp(field_signature, "[C") == 0) { |
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610 value = oopFactory::new_charArray(length, CHECK); |
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611 } else if (strcmp(field_signature, "[S") == 0) { |
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612 value = oopFactory::new_shortArray(length, CHECK); |
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613 } else if (strcmp(field_signature, "[F") == 0) { |
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614 value = oopFactory::new_singleArray(length, CHECK); |
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615 } else if (strcmp(field_signature, "[D") == 0) { |
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616 value = oopFactory::new_doubleArray(length, CHECK); |
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617 } else if (strcmp(field_signature, "[I") == 0) { |
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618 value = oopFactory::new_intArray(length, CHECK); |
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619 } else if (strcmp(field_signature, "[J") == 0) { |
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620 value = oopFactory::new_longArray(length, CHECK); |
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621 } else if (field_signature[0] == '[' && field_signature[1] == 'L') { |
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622 KlassHandle kelem = resolve_klass(field_signature + 1, CHECK); |
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623 value = oopFactory::new_objArray(kelem(), length, CHECK); |
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624 } else { |
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625 report_error("unhandled array staticfield"); |
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626 } |
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627 } |
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628 java_mirror->obj_field_put(fd.offset(), value); |
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629 } else { |
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630 const char* string_value = parse_escaped_string(); |
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631 if (strcmp(field_signature, "I") == 0) { |
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632 int value = atoi(string_value); |
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633 java_mirror->int_field_put(fd.offset(), value); |
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634 } else if (strcmp(field_signature, "B") == 0) { |
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635 int value = atoi(string_value); |
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636 java_mirror->byte_field_put(fd.offset(), value); |
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637 } else if (strcmp(field_signature, "C") == 0) { |
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638 int value = atoi(string_value); |
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639 java_mirror->char_field_put(fd.offset(), value); |
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640 } else if (strcmp(field_signature, "S") == 0) { |
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641 int value = atoi(string_value); |
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642 java_mirror->short_field_put(fd.offset(), value); |
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643 } else if (strcmp(field_signature, "Z") == 0) { |
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644 int value = atol(string_value); |
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645 java_mirror->bool_field_put(fd.offset(), value); |
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646 } else if (strcmp(field_signature, "J") == 0) { |
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647 jlong value; |
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648 if (sscanf(string_value, INT64_FORMAT, &value) != 1) { |
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649 fprintf(stderr, "Error parsing long: %s\n", string_value); |
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650 return; |
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651 } |
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652 java_mirror->long_field_put(fd.offset(), value); |
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653 } else if (strcmp(field_signature, "F") == 0) { |
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654 float value = atof(string_value); |
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655 java_mirror->float_field_put(fd.offset(), value); |
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656 } else if (strcmp(field_signature, "D") == 0) { |
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657 double value = atof(string_value); |
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658 java_mirror->double_field_put(fd.offset(), value); |
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659 } else if (strcmp(field_signature, "Ljava/lang/String;") == 0) { |
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660 Handle value = java_lang_String::create_from_str(string_value, CHECK); |
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661 java_mirror->obj_field_put(fd.offset(), value()); |
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662 } else if (field_signature[0] == 'L') { |
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663 Symbol* klass_name = SymbolTable::lookup(field_signature, (int)strlen(field_signature), CHECK); |
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664 KlassHandle kelem = resolve_klass(field_signature, CHECK); |
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665 oop value = ((InstanceKlass*)kelem())->allocate_instance(CHECK); |
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666 java_mirror->obj_field_put(fd.offset(), value); |
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667 } else { |
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668 report_error("unhandled staticfield"); |
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669 } |
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670 } |
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671 } |
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672 |
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673 #if INCLUDE_JVMTI |
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674 void process_JvmtiExport(TRAPS) { |
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675 const char* field = parse_string(); |
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676 bool value = parse_int("JvmtiExport flag") != 0; |
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677 if (strcmp(field, "can_access_local_variables") == 0) { |
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678 JvmtiExport::set_can_access_local_variables(value); |
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679 } else if (strcmp(field, "can_hotswap_or_post_breakpoint") == 0) { |
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680 JvmtiExport::set_can_hotswap_or_post_breakpoint(value); |
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681 } else if (strcmp(field, "can_post_on_exceptions") == 0) { |
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682 JvmtiExport::set_can_post_on_exceptions(value); |
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683 } else { |
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684 report_error("Unrecognized JvmtiExport directive"); |
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685 } |
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686 } |
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687 #endif // INCLUDE_JVMTI |
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688 |
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689 // Create and initialize a record for a ciMethod |
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690 ciMethodRecord* new_ciMethod(Method* method) { |
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691 ciMethodRecord* rec = NEW_RESOURCE_OBJ(ciMethodRecord); |
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692 rec->klass = method->method_holder()->name()->as_utf8(); |
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693 rec->method = method->name()->as_utf8(); |
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694 rec->signature = method->signature()->as_utf8(); |
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695 ci_method_records.append(rec); |
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696 return rec; |
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697 } |
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698 |
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699 // Lookup data for a ciMethod |
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700 ciMethodRecord* find_ciMethodRecord(Method* method) { |
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701 const char* klass_name = method->method_holder()->name()->as_utf8(); |
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702 const char* method_name = method->name()->as_utf8(); |
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703 const char* signature = method->signature()->as_utf8(); |
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704 for (int i = 0; i < ci_method_records.length(); i++) { |
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705 ciMethodRecord* rec = ci_method_records.at(i); |
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706 if (strcmp(rec->klass, klass_name) == 0 && |
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707 strcmp(rec->method, method_name) == 0 && |
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708 strcmp(rec->signature, signature) == 0) { |
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709 return rec; |
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710 } |
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711 } |
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712 return NULL; |
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713 } |
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714 |
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715 // Create and initialize a record for a ciMethodData |
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716 ciMethodDataRecord* new_ciMethodData(Method* method) { |
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717 ciMethodDataRecord* rec = NEW_RESOURCE_OBJ(ciMethodDataRecord); |
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718 rec->klass = method->method_holder()->name()->as_utf8(); |
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719 rec->method = method->name()->as_utf8(); |
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720 rec->signature = method->signature()->as_utf8(); |
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721 ci_method_data_records.append(rec); |
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722 return rec; |
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723 } |
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724 |
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725 // Lookup data for a ciMethodData |
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726 ciMethodDataRecord* find_ciMethodDataRecord(Method* method) { |
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727 const char* klass_name = method->method_holder()->name()->as_utf8(); |
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728 const char* method_name = method->name()->as_utf8(); |
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changeset
|
729 const char* signature = method->signature()->as_utf8(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
730 for (int i = 0; i < ci_method_data_records.length(); i++) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
731 ciMethodDataRecord* rec = ci_method_data_records.at(i); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
732 if (strcmp(rec->klass, klass_name) == 0 && |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
733 strcmp(rec->method, method_name) == 0 && |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
734 strcmp(rec->signature, signature) == 0) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
735 return rec; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
736 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
737 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
738 return NULL; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
739 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
740 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
741 const char* error_message() { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
742 return _error_message; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
743 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
744 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
745 void reset() { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
746 _error_message = NULL; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
747 ci_method_records.clear(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
748 ci_method_data_records.clear(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
749 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
750 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
751 // Take an ascii string contain \u#### escapes and convert it to utf8 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
752 // in place. |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
753 static void unescape_string(char* value) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
754 char* from = value; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
755 char* to = value; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
756 while (*from != '\0') { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
757 if (*from != '\\') { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
758 *from++ = *to++; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
759 } else { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
760 switch (from[1]) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
761 case 'u': { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
762 from += 2; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
763 jchar value=0; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
764 for (int i=0; i<4; i++) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
765 char c = *from++; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
766 switch (c) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
767 case '0': case '1': case '2': case '3': case '4': |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
768 case '5': case '6': case '7': case '8': case '9': |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
769 value = (value << 4) + c - '0'; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
770 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
771 case 'a': case 'b': case 'c': |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
772 case 'd': case 'e': case 'f': |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
773 value = (value << 4) + 10 + c - 'a'; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
774 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
775 case 'A': case 'B': case 'C': |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
776 case 'D': case 'E': case 'F': |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
777 value = (value << 4) + 10 + c - 'A'; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
778 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
779 default: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
780 ShouldNotReachHere(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
781 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
782 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
783 UNICODE::convert_to_utf8(&value, 1, to); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
784 to++; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
785 break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
786 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
787 case 't': *to++ = '\t'; from += 2; break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
788 case 'n': *to++ = '\n'; from += 2; break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
789 case 'r': *to++ = '\r'; from += 2; break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
790 case 'f': *to++ = '\f'; from += 2; break; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
791 default: |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
792 ShouldNotReachHere(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
793 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
794 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
795 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
796 *from = *to; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
797 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
798 }; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
799 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
800 void ciReplay::replay(TRAPS) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
801 int exit_code = replay_impl(THREAD); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
802 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
803 Threads::destroy_vm(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
804 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
805 vm_exit(exit_code); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
806 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
807 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
808 int ciReplay::replay_impl(TRAPS) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
809 HandleMark hm; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
810 ResourceMark rm; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
811 // Make sure we don't run with background compilation |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
812 BackgroundCompilation = false; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
813 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
814 if (ReplaySuppressInitializers > 2) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
815 // ReplaySuppressInitializers > 2 means that we want to allow |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
816 // normal VM bootstrap but once we get into the replay itself |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
817 // don't allow any intializers to be run. |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
818 ReplaySuppressInitializers = 1; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
819 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
820 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
821 // Load and parse the replay data |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
822 CompileReplay rp(ReplayDataFile, THREAD); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
823 int exit_code = 0; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
824 if (rp.can_replay()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
825 rp.process(THREAD); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
826 } else { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
827 exit_code = 1; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
828 return exit_code; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
829 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
830 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
831 if (HAS_PENDING_EXCEPTION) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
832 oop throwable = PENDING_EXCEPTION; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
833 CLEAR_PENDING_EXCEPTION; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
834 java_lang_Throwable::print(throwable, tty); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
835 tty->cr(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
836 java_lang_Throwable::print_stack_trace(throwable, tty); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
837 tty->cr(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
838 exit_code = 2; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
839 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
840 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
841 if (rp.had_error()) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
842 tty->print_cr("Failed on %s", rp.error_message()); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
843 exit_code = 1; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
844 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
845 return exit_code; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
846 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
847 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
848 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
849 void ciReplay::initialize(ciMethodData* m) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
850 if (replay_state == NULL) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
851 return; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
852 } |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
853 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
854 ASSERT_IN_VM; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
855 ResourceMark rm; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
856 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
857 Method* method = m->get_MethodData()->method(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
858 ciMethodDataRecord* rec = replay_state->find_ciMethodDataRecord(method); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
859 if (rec == NULL) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
860 // This indicates some mismatch with the original environment and |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
861 // the replay environment though it's not always enough to |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
862 // interfere with reproducing a bug |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
863 tty->print_cr("Warning: requesting ciMethodData record for method with no data: "); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
864 method->print_name(tty); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
865 tty->cr(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
866 } else { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
867 m->_state = rec->state; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
868 m->_current_mileage = rec->current_mileage; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
869 if (rec->data_length != 0) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
870 assert(m->_data_size == rec->data_length * (int)sizeof(rec->data[0]), "must agree"); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
871 |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
872 // Write the correct ciObjects back into the profile data |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
873 ciEnv* env = ciEnv::current(); |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
874 for (int i = 0; i < rec->oops_length; i++) { |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
875 KlassHandle *h = (KlassHandle *)rec->oops_handles[i]; |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
876 *(ciMetadata**)(rec->data + rec->oops_offsets[i]) = |
bd7a7ce2e264
6830717: replay of compilations would help with debugging
minqi
parents:
diff
changeset
|
877 env->get_metadata((*h)()); |
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878 } |
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879 // Copy the updated profile data into place as intptr_ts |
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880 #ifdef _LP64 |
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881 Copy::conjoint_jlongs_atomic((jlong *)rec->data, (jlong *)m->_data, rec->data_length); |
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882 #else |
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883 Copy::conjoint_jints_atomic((jint *)rec->data, (jint *)m->_data, rec->data_length); |
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884 #endif |
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885 } |
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886 |
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887 // copy in the original header |
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888 Copy::conjoint_jbytes(rec->orig_data, (char*)&m->_orig, rec->orig_data_length); |
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889 } |
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890 } |
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891 |
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892 |
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893 bool ciReplay::should_not_inline(ciMethod* method) { |
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894 if (replay_state == NULL) { |
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895 return false; |
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896 } |
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897 |
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898 VM_ENTRY_MARK; |
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899 // ciMethod without a record shouldn't be inlined. |
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900 return replay_state->find_ciMethodRecord(method->get_Method()) == NULL; |
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901 } |
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902 |
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903 |
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904 void ciReplay::initialize(ciMethod* m) { |
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905 if (replay_state == NULL) { |
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906 return; |
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907 } |
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908 |
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909 ASSERT_IN_VM; |
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910 ResourceMark rm; |
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911 |
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912 Method* method = m->get_Method(); |
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913 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method); |
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914 if (rec == NULL) { |
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915 // This indicates some mismatch with the original environment and |
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916 // the replay environment though it's not always enough to |
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917 // interfere with reproducing a bug |
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918 tty->print_cr("Warning: requesting ciMethod record for method with no data: "); |
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919 method->print_name(tty); |
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920 tty->cr(); |
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921 } else { |
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922 // m->_instructions_size = rec->instructions_size; |
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923 m->_instructions_size = -1; |
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924 m->_interpreter_invocation_count = rec->interpreter_invocation_count; |
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925 m->_interpreter_throwout_count = rec->interpreter_throwout_count; |
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926 method->invocation_counter()->_counter = rec->invocation_counter; |
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927 method->backedge_counter()->_counter = rec->backedge_counter; |
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928 } |
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929 } |
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930 |
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931 bool ciReplay::is_loaded(Method* method) { |
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932 if (replay_state == NULL) { |
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933 return true; |
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934 } |
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935 |
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936 ASSERT_IN_VM; |
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937 ResourceMark rm; |
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938 |
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939 ciMethodRecord* rec = replay_state->find_ciMethodRecord(method); |
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940 return rec != NULL; |
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941 } |
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942 #endif |