Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.cpp @ 17747:f99e331f6ef6
8029162: G1: Shared SATB queue never enabled
Reviewed-by: brutisso, mgerdin, tschatzl
author | pliden |
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date | Fri, 10 Jan 2014 09:54:25 +0100 |
parents | d6c97434b745 |
children | b257acb35d3e |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "memory/allocation.inline.hpp" | |
27 #include "oops/oop.inline.hpp" | |
28 #include "runtime/arguments.hpp" | |
29 #include "runtime/globals.hpp" | |
30 #include "runtime/globals_extension.hpp" | |
31 #include "utilities/ostream.hpp" | |
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32 #include "utilities/macros.hpp" |
1972 | 33 #include "utilities/top.hpp" |
17691 | 34 #include "trace/tracing.hpp" |
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35 #if INCLUDE_ALL_GCS |
1972 | 36 #include "gc_implementation/g1/g1_globals.hpp" |
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37 #endif // INCLUDE_ALL_GCS |
1972 | 38 #ifdef COMPILER1 |
39 #include "c1/c1_globals.hpp" | |
40 #endif | |
41 #ifdef COMPILER2 | |
42 #include "opto/c2_globals.hpp" | |
43 #endif | |
44 #ifdef SHARK | |
45 #include "shark/shark_globals.hpp" | |
46 #endif | |
0 | 47 |
48 RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
49 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
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50 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ |
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51 MATERIALIZE_NOTPRODUCT_FLAG, \ |
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52 MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \ |
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53 MATERIALIZE_LP64_PRODUCT_FLAG) |
0 | 54 |
55 RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
56 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
57 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG) | |
58 | |
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59 ARCH_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PRODUCT_FLAG, \ |
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60 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ |
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61 MATERIALIZE_NOTPRODUCT_FLAG) |
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62 |
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63 MATERIALIZE_FLAGS_EXT |
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64 |
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65 |
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66 static bool is_product_build() { |
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67 #ifdef PRODUCT |
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68 return true; |
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69 #else |
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70 return false; |
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71 #endif |
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72 } |
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73 |
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74 void Flag::check_writable() { |
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75 if (is_constant_in_binary()) { |
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76 fatal(err_msg("flag is constant: %s", _name)); |
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77 } |
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78 } |
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79 |
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80 bool Flag::is_bool() const { |
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81 return strcmp(_type, "bool") == 0; |
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82 } |
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83 |
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84 bool Flag::get_bool() const { |
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85 return *((bool*) _addr); |
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86 } |
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87 |
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88 void Flag::set_bool(bool value) { |
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89 check_writable(); |
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90 *((bool*) _addr) = value; |
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91 } |
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92 |
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93 bool Flag::is_intx() const { |
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94 return strcmp(_type, "intx") == 0; |
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95 } |
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96 |
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97 intx Flag::get_intx() const { |
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98 return *((intx*) _addr); |
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99 } |
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100 |
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101 void Flag::set_intx(intx value) { |
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102 check_writable(); |
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103 *((intx*) _addr) = value; |
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104 } |
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105 |
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106 bool Flag::is_uintx() const { |
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107 return strcmp(_type, "uintx") == 0; |
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108 } |
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109 |
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110 uintx Flag::get_uintx() const { |
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111 return *((uintx*) _addr); |
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112 } |
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113 |
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114 void Flag::set_uintx(uintx value) { |
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115 check_writable(); |
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116 *((uintx*) _addr) = value; |
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117 } |
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118 |
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119 bool Flag::is_uint64_t() const { |
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120 return strcmp(_type, "uint64_t") == 0; |
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121 } |
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122 |
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123 uint64_t Flag::get_uint64_t() const { |
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124 return *((uint64_t*) _addr); |
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125 } |
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126 |
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127 void Flag::set_uint64_t(uint64_t value) { |
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128 check_writable(); |
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129 *((uint64_t*) _addr) = value; |
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130 } |
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131 |
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132 bool Flag::is_double() const { |
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133 return strcmp(_type, "double") == 0; |
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134 } |
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135 |
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136 double Flag::get_double() const { |
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137 return *((double*) _addr); |
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138 } |
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139 |
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140 void Flag::set_double(double value) { |
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141 check_writable(); |
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142 *((double*) _addr) = value; |
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143 } |
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144 |
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145 bool Flag::is_ccstr() const { |
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146 return strcmp(_type, "ccstr") == 0 || strcmp(_type, "ccstrlist") == 0; |
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147 } |
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148 |
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149 bool Flag::ccstr_accumulates() const { |
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150 return strcmp(_type, "ccstrlist") == 0; |
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151 } |
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152 |
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153 ccstr Flag::get_ccstr() const { |
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154 return *((ccstr*) _addr); |
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155 } |
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156 |
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157 void Flag::set_ccstr(ccstr value) { |
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158 check_writable(); |
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159 *((ccstr*) _addr) = value; |
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160 } |
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161 |
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162 |
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163 Flag::Flags Flag::get_origin() { |
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164 return Flags(_flags & VALUE_ORIGIN_MASK); |
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165 } |
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166 |
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167 void Flag::set_origin(Flags origin) { |
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168 assert((origin & VALUE_ORIGIN_MASK) == origin, "sanity"); |
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169 _flags = Flags((_flags & ~VALUE_ORIGIN_MASK) | origin); |
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170 } |
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171 |
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172 bool Flag::is_default() { |
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173 return (get_origin() == DEFAULT); |
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174 } |
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175 |
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176 bool Flag::is_ergonomic() { |
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177 return (get_origin() == ERGONOMIC); |
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178 } |
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179 |
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180 bool Flag::is_command_line() { |
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181 return (get_origin() == COMMAND_LINE); |
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182 } |
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183 |
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184 bool Flag::is_product() const { |
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185 return (_flags & KIND_PRODUCT) != 0; |
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186 } |
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187 |
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188 bool Flag::is_manageable() const { |
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189 return (_flags & KIND_MANAGEABLE) != 0; |
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190 } |
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191 |
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192 bool Flag::is_diagnostic() const { |
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193 return (_flags & KIND_DIAGNOSTIC) != 0; |
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194 } |
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195 |
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196 bool Flag::is_experimental() const { |
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197 return (_flags & KIND_EXPERIMENTAL) != 0; |
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198 } |
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199 |
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200 bool Flag::is_notproduct() const { |
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201 return (_flags & KIND_NOT_PRODUCT) != 0; |
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202 } |
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203 |
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204 bool Flag::is_develop() const { |
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205 return (_flags & KIND_DEVELOP) != 0; |
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206 } |
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207 |
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208 bool Flag::is_read_write() const { |
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209 return (_flags & KIND_READ_WRITE) != 0; |
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210 } |
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211 |
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212 bool Flag::is_commercial() const { |
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213 return (_flags & KIND_COMMERCIAL) != 0; |
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214 } |
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215 |
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216 /** |
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217 * Returns if this flag is a constant in the binary. Right now this is |
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218 * true for notproduct and develop flags in product builds. |
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219 */ |
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220 bool Flag::is_constant_in_binary() const { |
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221 #ifdef PRODUCT |
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222 return is_notproduct() || is_develop(); |
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223 #else |
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224 return false; |
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225 #endif |
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226 } |
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227 |
0 | 228 bool Flag::is_unlocker() const { |
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229 return strcmp(_name, "UnlockDiagnosticVMOptions") == 0 || |
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230 strcmp(_name, "UnlockExperimentalVMOptions") == 0 || |
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231 is_unlocker_ext(); |
0 | 232 } |
233 | |
234 bool Flag::is_unlocked() const { | |
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235 if (is_diagnostic()) { |
0 | 236 return UnlockDiagnosticVMOptions; |
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237 } |
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238 if (is_experimental()) { |
350
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239 return UnlockExperimentalVMOptions; |
0 | 240 } |
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241 return is_unlocked_ext(); |
0 | 242 } |
243 | |
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244 // Get custom message for this locked flag, or return NULL if |
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245 // none is available. |
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246 void Flag::get_locked_message(char* buf, int buflen) const { |
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247 buf[0] = '\0'; |
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248 if (is_diagnostic() && !is_unlocked()) { |
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249 jio_snprintf(buf, buflen, "Error: VM option '%s' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.\n", |
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250 _name); |
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251 return; |
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252 } |
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253 if (is_experimental() && !is_unlocked()) { |
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254 jio_snprintf(buf, buflen, "Error: VM option '%s' is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions.\n", |
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255 _name); |
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256 return; |
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257 } |
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258 if (is_develop() && is_product_build()) { |
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259 jio_snprintf(buf, buflen, "Error: VM option '%s' is develop and is available only in debug version of VM.\n", |
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260 _name); |
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261 return; |
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262 } |
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263 if (is_notproduct() && is_product_build()) { |
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264 jio_snprintf(buf, buflen, "Error: VM option '%s' is notproduct and is available only in debug version of VM.\n", |
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265 _name); |
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266 return; |
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267 } |
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268 get_locked_message_ext(buf, buflen); |
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269 } |
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270 |
0 | 271 bool Flag::is_writeable() const { |
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272 return is_manageable() || (is_product() && is_read_write()) || is_writeable_ext(); |
0 | 273 } |
274 | |
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275 // All flags except "manageable" are assumed to be internal flags. |
0 | 276 // Long term, we need to define a mechanism to specify which flags |
277 // are external/stable and change this function accordingly. | |
278 bool Flag::is_external() const { | |
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279 return is_manageable() || is_external_ext(); |
0 | 280 } |
281 | |
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282 |
0 | 283 // Length of format string (e.g. "%.1234s") for printing ccstr below |
284 #define FORMAT_BUFFER_LEN 16 | |
285 | |
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286 void Flag::print_on(outputStream* st, bool withComments) { |
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287 // Don't print notproduct and develop flags in a product build. |
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288 if (is_constant_in_binary()) { |
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289 return; |
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290 } |
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291 |
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292 st->print("%9s %-40s %c= ", _type, _name, (!is_default() ? ':' : ' ')); |
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293 |
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294 if (is_bool()) { |
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295 st->print("%-16s", get_bool() ? "true" : "false"); |
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296 } |
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297 if (is_intx()) { |
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298 st->print("%-16ld", get_intx()); |
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299 } |
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300 if (is_uintx()) { |
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301 st->print("%-16lu", get_uintx()); |
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302 } |
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303 if (is_uint64_t()) { |
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304 st->print("%-16lu", get_uint64_t()); |
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305 } |
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306 if (is_double()) { |
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307 st->print("%-16f", get_double()); |
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308 } |
0 | 309 if (is_ccstr()) { |
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310 const char* cp = get_ccstr(); |
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311 if (cp != NULL) { |
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312 const char* eol; |
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313 while ((eol = strchr(cp, '\n')) != NULL) { |
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314 char format_buffer[FORMAT_BUFFER_LEN]; |
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315 size_t llen = pointer_delta(eol, cp, sizeof(char)); |
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316 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, |
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317 "%%." SIZE_FORMAT "s", llen); |
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318 st->print(format_buffer, cp); |
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319 st->cr(); |
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320 cp = eol+1; |
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321 st->print("%5s %-35s += ", "", _name); |
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322 } |
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323 st->print("%-16s", cp); |
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324 } |
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325 else st->print("%-16s", ""); |
0 | 326 } |
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327 |
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328 st->print("%-20"); |
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329 print_kind(st); |
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330 |
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331 if (withComments) { |
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332 #ifndef PRODUCT |
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333 st->print("%s", _doc); |
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334 #endif |
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335 } |
0 | 336 st->cr(); |
337 } | |
338 | |
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339 void Flag::print_kind(outputStream* st) { |
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340 struct Data { |
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341 int flag; |
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342 const char* name; |
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343 }; |
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344 |
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345 Data data[] = { |
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346 { KIND_C1, "C1" }, |
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347 { KIND_C2, "C2" }, |
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348 { KIND_ARCH, "ARCH" }, |
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349 { KIND_SHARK, "SHARK" }, |
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350 { KIND_PLATFORM_DEPENDENT, "pd" }, |
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351 { KIND_PRODUCT, "product" }, |
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352 { KIND_MANAGEABLE, "manageable" }, |
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353 { KIND_DIAGNOSTIC, "diagnostic" }, |
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354 { KIND_EXPERIMENTAL, "experimental" }, |
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355 { KIND_COMMERCIAL, "commercial" }, |
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356 { KIND_NOT_PRODUCT, "notproduct" }, |
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357 { KIND_DEVELOP, "develop" }, |
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358 { KIND_LP64_PRODUCT, "lp64_product" }, |
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359 { KIND_READ_WRITE, "rw" }, |
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360 { -1, "" } |
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361 }; |
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362 |
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363 if ((_flags & KIND_MASK) != 0) { |
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364 st->print("{"); |
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365 bool is_first = true; |
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366 |
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367 for (int i = 0; data[i].flag != -1; i++) { |
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368 Data d = data[i]; |
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369 if ((_flags & d.flag) != 0) { |
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370 if (is_first) { |
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371 is_first = false; |
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372 } else { |
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373 st->print(" "); |
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374 } |
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375 st->print(d.name); |
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376 } |
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377 } |
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378 |
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379 st->print("}"); |
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380 } |
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381 } |
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382 |
0 | 383 void Flag::print_as_flag(outputStream* st) { |
384 if (is_bool()) { | |
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385 st->print("-XX:%s%s", get_bool() ? "+" : "-", _name); |
0 | 386 } else if (is_intx()) { |
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387 st->print("-XX:%s=" INTX_FORMAT, _name, get_intx()); |
0 | 388 } else if (is_uintx()) { |
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389 st->print("-XX:%s=" UINTX_FORMAT, _name, get_uintx()); |
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390 } else if (is_uint64_t()) { |
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391 st->print("-XX:%s=" UINT64_FORMAT, _name, get_uint64_t()); |
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392 } else if (is_double()) { |
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393 st->print("-XX:%s=%f", _name, get_double()); |
0 | 394 } else if (is_ccstr()) { |
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395 st->print("-XX:%s=", _name); |
103 | 396 const char* cp = get_ccstr(); |
397 if (cp != NULL) { | |
398 // Need to turn embedded '\n's back into separate arguments | |
399 // Not so efficient to print one character at a time, | |
400 // but the choice is to do the transformation to a buffer | |
401 // and print that. And this need not be efficient. | |
402 for (; *cp != '\0'; cp += 1) { | |
403 switch (*cp) { | |
404 default: | |
405 st->print("%c", *cp); | |
406 break; | |
407 case '\n': | |
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408 st->print(" -XX:%s=", _name); |
103 | 409 break; |
410 } | |
0 | 411 } |
412 } | |
413 } else { | |
414 ShouldNotReachHere(); | |
415 } | |
416 } | |
417 | |
418 // 4991491 do not "optimize out" the was_set false values: omitting them | |
419 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
420 | |
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421 #define NAME(name) NOT_PRODUCT(&name) PRODUCT_ONLY(&CONST_##name) |
0 | 422 |
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423 #define RUNTIME_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_PRODUCT) }, |
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424 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) }, |
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425 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DIAGNOSTIC) }, |
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426 #define RUNTIME_EXPERIMENTAL_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_EXPERIMENTAL) }, |
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427 #define RUNTIME_MANAGEABLE_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_MANAGEABLE) }, |
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428 #define RUNTIME_PRODUCT_RW_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_PRODUCT | Flag::KIND_READ_WRITE) }, |
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429 #define RUNTIME_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DEVELOP) }, |
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430 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) }, |
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431 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_NOT_PRODUCT) }, |
0 | 432 |
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433 #ifdef _LP64 |
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434 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_LP64_PRODUCT) }, |
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435 #else |
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436 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
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437 #endif // _LP64 |
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438 |
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439 #define C1_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_PRODUCT) }, |
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440 #define C1_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) }, |
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441 #define C1_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DIAGNOSTIC) }, |
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442 #define C1_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DEVELOP) }, |
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443 #define C1_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) }, |
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444 #define C1_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C1 | Flag::KIND_NOT_PRODUCT) }, |
0 | 445 |
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446 #define C2_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_PRODUCT) }, |
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447 #define C2_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) }, |
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448 #define C2_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DIAGNOSTIC) }, |
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449 #define C2_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_EXPERIMENTAL) }, |
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450 #define C2_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DEVELOP) }, |
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451 #define C2_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) }, |
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452 #define C2_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_C2 | Flag::KIND_NOT_PRODUCT) }, |
0 | 453 |
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454 #define ARCH_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_PRODUCT) }, |
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455 #define ARCH_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_DIAGNOSTIC) }, |
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456 #define ARCH_EXPERIMENTAL_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_EXPERIMENTAL) }, |
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457 #define ARCH_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_DEVELOP) }, |
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458 #define ARCH_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_ARCH | Flag::KIND_NOT_PRODUCT) }, |
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459 |
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460 #define SHARK_PRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_PRODUCT) }, |
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461 #define SHARK_PD_PRODUCT_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_PRODUCT | Flag::KIND_PLATFORM_DEPENDENT) }, |
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462 #define SHARK_DIAGNOSTIC_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), &name, NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_DIAGNOSTIC) }, |
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463 #define SHARK_DEVELOP_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_DEVELOP) }, |
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464 #define SHARK_PD_DEVELOP_FLAG_STRUCT( type, name, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_DEVELOP | Flag::KIND_PLATFORM_DEPENDENT) }, |
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465 #define SHARK_NOTPRODUCT_FLAG_STRUCT( type, name, value, doc) { #type, XSTR(name), NAME(name), NOT_PRODUCT_ARG(doc) Flag::Flags(Flag::DEFAULT | Flag::KIND_SHARK | Flag::KIND_NOT_PRODUCT) }, |
0 | 466 |
467 static Flag flagTable[] = { | |
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468 RUNTIME_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT) |
0 | 469 RUNTIME_OS_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT) |
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470 #if INCLUDE_ALL_GCS |
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471 G1_FLAGS(RUNTIME_DEVELOP_FLAG_STRUCT, RUNTIME_PD_DEVELOP_FLAG_STRUCT, RUNTIME_PRODUCT_FLAG_STRUCT, RUNTIME_PD_PRODUCT_FLAG_STRUCT, RUNTIME_DIAGNOSTIC_FLAG_STRUCT, RUNTIME_EXPERIMENTAL_FLAG_STRUCT, RUNTIME_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT) |
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472 #endif // INCLUDE_ALL_GCS |
0 | 473 #ifdef COMPILER1 |
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474 C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_DIAGNOSTIC_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT) |
0 | 475 #endif |
476 #ifdef COMPILER2 | |
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477 C2_FLAGS(C2_DEVELOP_FLAG_STRUCT, C2_PD_DEVELOP_FLAG_STRUCT, C2_PRODUCT_FLAG_STRUCT, C2_PD_PRODUCT_FLAG_STRUCT, C2_DIAGNOSTIC_FLAG_STRUCT, C2_EXPERIMENTAL_FLAG_STRUCT, C2_NOTPRODUCT_FLAG_STRUCT) |
0 | 478 #endif |
1692 | 479 #ifdef SHARK |
480 SHARK_FLAGS(SHARK_DEVELOP_FLAG_STRUCT, SHARK_PD_DEVELOP_FLAG_STRUCT, SHARK_PRODUCT_FLAG_STRUCT, SHARK_PD_PRODUCT_FLAG_STRUCT, SHARK_DIAGNOSTIC_FLAG_STRUCT, SHARK_NOTPRODUCT_FLAG_STRUCT) | |
481 #endif | |
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482 ARCH_FLAGS(ARCH_DEVELOP_FLAG_STRUCT, ARCH_PRODUCT_FLAG_STRUCT, ARCH_DIAGNOSTIC_FLAG_STRUCT, ARCH_EXPERIMENTAL_FLAG_STRUCT, ARCH_NOTPRODUCT_FLAG_STRUCT) |
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483 FLAGTABLE_EXT |
0 | 484 {0, NULL, NULL} |
485 }; | |
486 | |
487 Flag* Flag::flags = flagTable; | |
488 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
489 | |
11070 | 490 inline bool str_equal(const char* s, const char* q, size_t len) { |
0 | 491 // s is null terminated, q is not! |
492 if (strlen(s) != (unsigned int) len) return false; | |
493 return strncmp(s, q, len) == 0; | |
494 } | |
495 | |
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496 // Search the flag table for a named flag |
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497 Flag* Flag::find_flag(const char* name, size_t length, bool allow_locked, bool return_flag) { |
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498 for (Flag* current = &flagTable[0]; current->_name != NULL; current++) { |
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499 if (str_equal(current->_name, name, length)) { |
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500 // Found a matching entry. |
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501 // Don't report notproduct and develop flags in product builds. |
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502 if (current->is_constant_in_binary()) { |
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503 return (return_flag == true ? current : NULL); |
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504 } |
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505 // Report locked flags only if allowed. |
0 | 506 if (!(current->is_unlocked() || current->is_unlocker())) { |
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507 if (!allow_locked) { |
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508 // disable use of locked flags, e.g. diagnostic, experimental, |
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509 // commercial... until they are explicitly unlocked |
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510 return NULL; |
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511 } |
0 | 512 } |
513 return current; | |
514 } | |
515 } | |
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516 // Flag name is not in the flag table |
0 | 517 return NULL; |
518 } | |
519 | |
11070 | 520 // Compute string similarity based on Dice's coefficient |
521 static float str_similar(const char* str1, const char* str2, size_t len2) { | |
522 int len1 = (int) strlen(str1); | |
523 int total = len1 + (int) len2; | |
524 | |
525 int hit = 0; | |
526 | |
527 for (int i = 0; i < len1 -1; ++i) { | |
528 for (int j = 0; j < (int) len2 -1; ++j) { | |
529 if ((str1[i] == str2[j]) && (str1[i+1] == str2[j+1])) { | |
530 ++hit; | |
531 break; | |
532 } | |
533 } | |
534 } | |
535 | |
536 return 2.0f * (float) hit / (float) total; | |
537 } | |
538 | |
539 Flag* Flag::fuzzy_match(const char* name, size_t length, bool allow_locked) { | |
540 float VMOptionsFuzzyMatchSimilarity = 0.7f; | |
541 Flag* match = NULL; | |
542 float score; | |
543 float max_score = -1; | |
544 | |
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545 for (Flag* current = &flagTable[0]; current->_name != NULL; current++) { |
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546 score = str_similar(current->_name, name, length); |
11070 | 547 if (score > max_score) { |
548 max_score = score; | |
549 match = current; | |
550 } | |
551 } | |
552 | |
553 if (!(match->is_unlocked() || match->is_unlocker())) { | |
554 if (!allow_locked) { | |
555 return NULL; | |
556 } | |
557 } | |
558 | |
559 if (max_score < VMOptionsFuzzyMatchSimilarity) { | |
560 return NULL; | |
561 } | |
562 | |
563 return match; | |
564 } | |
565 | |
0 | 566 // Returns the address of the index'th element |
567 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
568 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
569 return &Flag::flags[flag]; | |
570 } | |
571 | |
572 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
573 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
574 Flag* f = &Flag::flags[flag]; | |
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575 return f->is_default(); |
0 | 576 } |
577 | |
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578 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
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579 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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580 Flag* f = &Flag::flags[flag]; |
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581 return f->is_ergonomic(); |
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582 } |
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583 |
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584 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
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585 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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586 Flag* f = &Flag::flags[flag]; |
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587 return f->is_command_line(); |
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588 } |
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589 |
0 | 590 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
591 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
592 if (result == NULL) return false; | |
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593 *value = result->is_command_line(); |
0 | 594 return true; |
595 } | |
596 | |
17691 | 597 template<class E, class T> |
598 static void trace_flag_changed(const char* name, const T old_value, const T new_value, const Flag::Flags origin) | |
599 { | |
600 E e; | |
601 e.set_name(name); | |
602 e.set_old_value(old_value); | |
603 e.set_new_value(new_value); | |
604 e.set_origin(origin); | |
605 e.commit(); | |
606 } | |
607 | |
0 | 608 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { |
609 Flag* result = Flag::find_flag(name, len); | |
610 if (result == NULL) return false; | |
611 if (!result->is_bool()) return false; | |
612 *value = result->get_bool(); | |
613 return true; | |
614 } | |
615 | |
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616 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin) { |
0 | 617 Flag* result = Flag::find_flag(name, len); |
618 if (result == NULL) return false; | |
619 if (!result->is_bool()) return false; | |
620 bool old_value = result->get_bool(); | |
17691 | 621 trace_flag_changed<EventBooleanFlagChanged, bool>(name, old_value, *value, origin); |
0 | 622 result->set_bool(*value); |
623 *value = old_value; | |
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624 result->set_origin(origin); |
0 | 625 return true; |
626 } | |
627 | |
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628 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, Flag::Flags origin) { |
0 | 629 Flag* faddr = address_of_flag(flag); |
630 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
17691 | 631 trace_flag_changed<EventBooleanFlagChanged, bool>(faddr->_name, faddr->get_bool(), value, origin); |
0 | 632 faddr->set_bool(value); |
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633 faddr->set_origin(origin); |
0 | 634 } |
635 | |
636 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
637 Flag* result = Flag::find_flag(name, len); | |
638 if (result == NULL) return false; | |
639 if (!result->is_intx()) return false; | |
640 *value = result->get_intx(); | |
641 return true; | |
642 } | |
643 | |
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644 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin) { |
0 | 645 Flag* result = Flag::find_flag(name, len); |
646 if (result == NULL) return false; | |
647 if (!result->is_intx()) return false; | |
648 intx old_value = result->get_intx(); | |
17691 | 649 trace_flag_changed<EventLongFlagChanged, s8>(name, old_value, *value, origin); |
0 | 650 result->set_intx(*value); |
651 *value = old_value; | |
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652 result->set_origin(origin); |
0 | 653 return true; |
654 } | |
655 | |
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656 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, Flag::Flags origin) { |
0 | 657 Flag* faddr = address_of_flag(flag); |
658 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
17691 | 659 trace_flag_changed<EventLongFlagChanged, s8>(faddr->_name, faddr->get_intx(), value, origin); |
0 | 660 faddr->set_intx(value); |
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661 faddr->set_origin(origin); |
0 | 662 } |
663 | |
664 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
665 Flag* result = Flag::find_flag(name, len); | |
666 if (result == NULL) return false; | |
667 if (!result->is_uintx()) return false; | |
668 *value = result->get_uintx(); | |
669 return true; | |
670 } | |
671 | |
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672 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin) { |
0 | 673 Flag* result = Flag::find_flag(name, len); |
674 if (result == NULL) return false; | |
675 if (!result->is_uintx()) return false; | |
676 uintx old_value = result->get_uintx(); | |
17691 | 677 trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin); |
0 | 678 result->set_uintx(*value); |
679 *value = old_value; | |
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680 result->set_origin(origin); |
0 | 681 return true; |
682 } | |
683 | |
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684 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, Flag::Flags origin) { |
0 | 685 Flag* faddr = address_of_flag(flag); |
686 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
17691 | 687 trace_flag_changed<EventUnsignedLongFlagChanged, u8>(faddr->_name, faddr->get_uintx(), value, origin); |
0 | 688 faddr->set_uintx(value); |
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689 faddr->set_origin(origin); |
0 | 690 } |
691 | |
1064 | 692 bool CommandLineFlags::uint64_tAt(char* name, size_t len, uint64_t* value) { |
693 Flag* result = Flag::find_flag(name, len); | |
694 if (result == NULL) return false; | |
695 if (!result->is_uint64_t()) return false; | |
696 *value = result->get_uint64_t(); | |
697 return true; | |
698 } | |
699 | |
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700 bool CommandLineFlags::uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin) { |
1064 | 701 Flag* result = Flag::find_flag(name, len); |
702 if (result == NULL) return false; | |
703 if (!result->is_uint64_t()) return false; | |
704 uint64_t old_value = result->get_uint64_t(); | |
17691 | 705 trace_flag_changed<EventUnsignedLongFlagChanged, u8>(name, old_value, *value, origin); |
1064 | 706 result->set_uint64_t(*value); |
707 *value = old_value; | |
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708 result->set_origin(origin); |
1064 | 709 return true; |
710 } | |
711 | |
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712 void CommandLineFlagsEx::uint64_tAtPut(CommandLineFlagWithType flag, uint64_t value, Flag::Flags origin) { |
1064 | 713 Flag* faddr = address_of_flag(flag); |
714 guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type"); | |
17691 | 715 trace_flag_changed<EventUnsignedLongFlagChanged, u8>(faddr->_name, faddr->get_uint64_t(), value, origin); |
1064 | 716 faddr->set_uint64_t(value); |
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717 faddr->set_origin(origin); |
1064 | 718 } |
719 | |
0 | 720 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { |
721 Flag* result = Flag::find_flag(name, len); | |
722 if (result == NULL) return false; | |
723 if (!result->is_double()) return false; | |
724 *value = result->get_double(); | |
725 return true; | |
726 } | |
727 | |
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728 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin) { |
0 | 729 Flag* result = Flag::find_flag(name, len); |
730 if (result == NULL) return false; | |
731 if (!result->is_double()) return false; | |
732 double old_value = result->get_double(); | |
17691 | 733 trace_flag_changed<EventDoubleFlagChanged, double>(name, old_value, *value, origin); |
0 | 734 result->set_double(*value); |
735 *value = old_value; | |
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736 result->set_origin(origin); |
0 | 737 return true; |
738 } | |
739 | |
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740 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, Flag::Flags origin) { |
0 | 741 Flag* faddr = address_of_flag(flag); |
742 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
17691 | 743 trace_flag_changed<EventDoubleFlagChanged, double>(faddr->_name, faddr->get_double(), value, origin); |
0 | 744 faddr->set_double(value); |
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745 faddr->set_origin(origin); |
0 | 746 } |
747 | |
748 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
749 Flag* result = Flag::find_flag(name, len); | |
750 if (result == NULL) return false; | |
751 if (!result->is_ccstr()) return false; | |
752 *value = result->get_ccstr(); | |
753 return true; | |
754 } | |
755 | |
756 // Contract: Flag will make private copy of the incoming value. | |
757 // Outgoing value is always malloc-ed, and caller MUST call free. | |
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758 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin) { |
0 | 759 Flag* result = Flag::find_flag(name, len); |
760 if (result == NULL) return false; | |
761 if (!result->is_ccstr()) return false; | |
762 ccstr old_value = result->get_ccstr(); | |
17691 | 763 trace_flag_changed<EventStringFlagChanged, const char*>(name, old_value, *value, origin); |
370
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764 char* new_value = NULL; |
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765 if (*value != NULL) { |
6197 | 766 new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1, mtInternal); |
370
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767 strcpy(new_value, *value); |
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768 } |
0 | 769 result->set_ccstr(new_value); |
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770 if (result->is_default() && old_value != NULL) { |
0 | 771 // Prior value is NOT heap allocated, but was a literal constant. |
6197 | 772 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1, mtInternal); |
0 | 773 strcpy(old_value_to_free, old_value); |
774 old_value = old_value_to_free; | |
775 } | |
776 *value = old_value; | |
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777 result->set_origin(origin); |
0 | 778 return true; |
779 } | |
780 | |
781 // Contract: Flag will make private copy of the incoming value. | |
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782 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, Flag::Flags origin) { |
0 | 783 Flag* faddr = address_of_flag(flag); |
784 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
785 ccstr old_value = faddr->get_ccstr(); | |
17691 | 786 trace_flag_changed<EventStringFlagChanged, const char*>(faddr->_name, old_value, value, origin); |
6197 | 787 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1, mtInternal); |
0 | 788 strcpy(new_value, value); |
789 faddr->set_ccstr(new_value); | |
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790 if (!faddr->is_default() && old_value != NULL) { |
0 | 791 // Prior value is heap allocated so free it. |
6197 | 792 FREE_C_HEAP_ARRAY(char, old_value, mtInternal); |
0 | 793 } |
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794 faddr->set_origin(origin); |
0 | 795 } |
796 | |
797 extern "C" { | |
798 static int compare_flags(const void* void_a, const void* void_b) { | |
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799 return strcmp((*((Flag**) void_a))->_name, (*((Flag**) void_b))->_name); |
0 | 800 } |
801 } | |
802 | |
4773 | 803 void CommandLineFlags::printSetFlags(outputStream* out) { |
0 | 804 // Print which flags were set on the command line |
805 // note: this method is called before the thread structure is in place | |
806 // which means resource allocation cannot be used. | |
807 | |
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808 // The last entry is the null entry. |
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809 const size_t length = Flag::numFlags - 1; |
0 | 810 |
811 // Sort | |
6197 | 812 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length, mtInternal); |
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813 for (size_t i = 0; i < length; i++) { |
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814 array[i] = &flagTable[i]; |
0 | 815 } |
816 qsort(array, length, sizeof(Flag*), compare_flags); | |
817 | |
818 // Print | |
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819 for (size_t i = 0; i < length; i++) { |
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820 if (array[i]->get_origin() /* naked field! */) { |
4773 | 821 array[i]->print_as_flag(out); |
822 out->print(" "); | |
0 | 823 } |
824 } | |
4773 | 825 out->cr(); |
6197 | 826 FREE_C_HEAP_ARRAY(Flag*, array, mtInternal); |
0 | 827 } |
828 | |
829 #ifndef PRODUCT | |
830 | |
831 | |
832 void CommandLineFlags::verify() { | |
833 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
834 } | |
835 | |
1150 | 836 #endif // PRODUCT |
837 | |
4773 | 838 void CommandLineFlags::printFlags(outputStream* out, bool withComments) { |
0 | 839 // Print the flags sorted by name |
840 // note: this method is called before the thread structure is in place | |
841 // which means resource allocation cannot be used. | |
842 | |
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843 // The last entry is the null entry. |
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844 const size_t length = Flag::numFlags - 1; |
0 | 845 |
846 // Sort | |
6197 | 847 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length, mtInternal); |
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848 for (size_t i = 0; i < length; i++) { |
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849 array[i] = &flagTable[i]; |
0 | 850 } |
851 qsort(array, length, sizeof(Flag*), compare_flags); | |
852 | |
853 // Print | |
4773 | 854 out->print_cr("[Global flags]"); |
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855 for (size_t i = 0; i < length; i++) { |
0 | 856 if (array[i]->is_unlocked()) { |
4773 | 857 array[i]->print_on(out, withComments); |
0 | 858 } |
859 } | |
6197 | 860 FREE_C_HEAP_ARRAY(Flag*, array, mtInternal); |
0 | 861 } |