Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.cpp @ 17677:51e1bb81df86 jdk8u20-b03
Merge
author | amurillo |
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date | Tue, 25 Feb 2014 13:02:52 -0800 |
parents | cd7a42c7be06 |
children | d6c97434b745 |
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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" |
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34 #if INCLUDE_ALL_GCS |
1972 | 35 #include "gc_implementation/g1/g1_globals.hpp" |
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36 #endif // INCLUDE_ALL_GCS |
1972 | 37 #ifdef COMPILER1 |
38 #include "c1/c1_globals.hpp" | |
39 #endif | |
40 #ifdef COMPILER2 | |
41 #include "opto/c2_globals.hpp" | |
42 #endif | |
43 #ifdef SHARK | |
44 #include "shark/shark_globals.hpp" | |
45 #endif | |
0 | 46 |
47 RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
48 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
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49 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ |
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50 MATERIALIZE_NOTPRODUCT_FLAG, \ |
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51 MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \ |
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52 MATERIALIZE_LP64_PRODUCT_FLAG) |
0 | 53 |
54 RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
55 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
56 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG) | |
57 | |
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58 ARCH_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PRODUCT_FLAG, \ |
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59 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_EXPERIMENTAL_FLAG, \ |
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60 MATERIALIZE_NOTPRODUCT_FLAG) |
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61 |
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62 MATERIALIZE_FLAGS_EXT |
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63 |
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64 |
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65 static bool is_product_build() { |
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66 #ifdef PRODUCT |
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67 return true; |
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68 #else |
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69 return false; |
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70 #endif |
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71 } |
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72 |
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73 void Flag::check_writable() { |
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74 if (is_constant_in_binary()) { |
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75 fatal(err_msg("flag is constant: %s", _name)); |
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76 } |
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77 } |
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78 |
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79 bool Flag::is_bool() const { |
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80 return strcmp(_type, "bool") == 0; |
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81 } |
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82 |
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83 bool Flag::get_bool() const { |
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84 return *((bool*) _addr); |
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85 } |
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86 |
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87 void Flag::set_bool(bool value) { |
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88 check_writable(); |
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89 *((bool*) _addr) = value; |
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90 } |
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91 |
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92 bool Flag::is_intx() const { |
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93 return strcmp(_type, "intx") == 0; |
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94 } |
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95 |
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96 intx Flag::get_intx() const { |
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97 return *((intx*) _addr); |
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98 } |
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99 |
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100 void Flag::set_intx(intx value) { |
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101 check_writable(); |
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102 *((intx*) _addr) = value; |
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103 } |
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104 |
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105 bool Flag::is_uintx() const { |
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106 return strcmp(_type, "uintx") == 0; |
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107 } |
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108 |
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109 uintx Flag::get_uintx() const { |
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110 return *((uintx*) _addr); |
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111 } |
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112 |
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113 void Flag::set_uintx(uintx value) { |
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114 check_writable(); |
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115 *((uintx*) _addr) = value; |
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116 } |
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117 |
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118 bool Flag::is_uint64_t() const { |
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119 return strcmp(_type, "uint64_t") == 0; |
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120 } |
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121 |
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122 uint64_t Flag::get_uint64_t() const { |
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123 return *((uint64_t*) _addr); |
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124 } |
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125 |
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126 void Flag::set_uint64_t(uint64_t value) { |
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127 check_writable(); |
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128 *((uint64_t*) _addr) = value; |
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129 } |
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130 |
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131 bool Flag::is_double() const { |
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132 return strcmp(_type, "double") == 0; |
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133 } |
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134 |
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135 double Flag::get_double() const { |
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136 return *((double*) _addr); |
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137 } |
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138 |
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139 void Flag::set_double(double value) { |
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140 check_writable(); |
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141 *((double*) _addr) = value; |
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142 } |
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143 |
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144 bool Flag::is_ccstr() const { |
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145 return strcmp(_type, "ccstr") == 0 || strcmp(_type, "ccstrlist") == 0; |
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146 } |
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147 |
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148 bool Flag::ccstr_accumulates() const { |
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149 return strcmp(_type, "ccstrlist") == 0; |
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150 } |
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151 |
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152 ccstr Flag::get_ccstr() const { |
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153 return *((ccstr*) _addr); |
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154 } |
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155 |
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156 void Flag::set_ccstr(ccstr value) { |
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157 check_writable(); |
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158 *((ccstr*) _addr) = value; |
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159 } |
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160 |
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161 |
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162 Flag::Flags Flag::get_origin() { |
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163 return Flags(_flags & VALUE_ORIGIN_MASK); |
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164 } |
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165 |
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166 void Flag::set_origin(Flags origin) { |
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167 assert((origin & VALUE_ORIGIN_MASK) == origin, "sanity"); |
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168 _flags = Flags((_flags & ~VALUE_ORIGIN_MASK) | origin); |
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169 } |
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170 |
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171 bool Flag::is_default() { |
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172 return (get_origin() == DEFAULT); |
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173 } |
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174 |
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175 bool Flag::is_ergonomic() { |
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176 return (get_origin() == ERGONOMIC); |
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177 } |
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178 |
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179 bool Flag::is_command_line() { |
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180 return (get_origin() == COMMAND_LINE); |
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181 } |
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182 |
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183 bool Flag::is_product() const { |
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184 return (_flags & KIND_PRODUCT) != 0; |
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185 } |
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186 |
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187 bool Flag::is_manageable() const { |
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188 return (_flags & KIND_MANAGEABLE) != 0; |
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189 } |
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190 |
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191 bool Flag::is_diagnostic() const { |
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192 return (_flags & KIND_DIAGNOSTIC) != 0; |
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193 } |
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194 |
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195 bool Flag::is_experimental() const { |
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196 return (_flags & KIND_EXPERIMENTAL) != 0; |
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197 } |
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198 |
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199 bool Flag::is_notproduct() const { |
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200 return (_flags & KIND_NOT_PRODUCT) != 0; |
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201 } |
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202 |
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203 bool Flag::is_develop() const { |
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204 return (_flags & KIND_DEVELOP) != 0; |
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205 } |
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206 |
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207 bool Flag::is_read_write() const { |
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208 return (_flags & KIND_READ_WRITE) != 0; |
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209 } |
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210 |
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211 bool Flag::is_commercial() const { |
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212 return (_flags & KIND_COMMERCIAL) != 0; |
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213 } |
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214 |
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215 /** |
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216 * Returns if this flag is a constant in the binary. Right now this is |
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217 * true for notproduct and develop flags in product builds. |
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218 */ |
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219 bool Flag::is_constant_in_binary() const { |
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220 #ifdef PRODUCT |
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221 return is_notproduct() || is_develop(); |
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222 #else |
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223 return false; |
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224 #endif |
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225 } |
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226 |
0 | 227 bool Flag::is_unlocker() const { |
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228 return strcmp(_name, "UnlockDiagnosticVMOptions") == 0 || |
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229 strcmp(_name, "UnlockExperimentalVMOptions") == 0 || |
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230 is_unlocker_ext(); |
0 | 231 } |
232 | |
233 bool Flag::is_unlocked() const { | |
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234 if (is_diagnostic()) { |
0 | 235 return UnlockDiagnosticVMOptions; |
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236 } |
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237 if (is_experimental()) { |
350
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238 return UnlockExperimentalVMOptions; |
0 | 239 } |
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240 return is_unlocked_ext(); |
0 | 241 } |
242 | |
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243 // Get custom message for this locked flag, or return NULL if |
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244 // none is available. |
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245 void Flag::get_locked_message(char* buf, int buflen) const { |
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246 buf[0] = '\0'; |
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247 if (is_diagnostic() && !is_unlocked()) { |
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248 jio_snprintf(buf, buflen, "Error: VM option '%s' is diagnostic and must be enabled via -XX:+UnlockDiagnosticVMOptions.\n", |
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249 _name); |
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250 return; |
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251 } |
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252 if (is_experimental() && !is_unlocked()) { |
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253 jio_snprintf(buf, buflen, "Error: VM option '%s' is experimental and must be enabled via -XX:+UnlockExperimentalVMOptions.\n", |
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254 _name); |
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255 return; |
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256 } |
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257 if (is_develop() && is_product_build()) { |
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258 jio_snprintf(buf, buflen, "Error: VM option '%s' is develop and is available only in debug version of VM.\n", |
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259 _name); |
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260 return; |
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261 } |
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262 if (is_notproduct() && is_product_build()) { |
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263 jio_snprintf(buf, buflen, "Error: VM option '%s' is notproduct and is available only in debug version of VM.\n", |
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264 _name); |
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265 return; |
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266 } |
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267 get_locked_message_ext(buf, buflen); |
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268 } |
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269 |
0 | 270 bool Flag::is_writeable() const { |
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271 return is_manageable() || (is_product() && is_read_write()) || is_writeable_ext(); |
0 | 272 } |
273 | |
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274 // All flags except "manageable" are assumed to be internal flags. |
0 | 275 // Long term, we need to define a mechanism to specify which flags |
276 // are external/stable and change this function accordingly. | |
277 bool Flag::is_external() const { | |
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278 return is_manageable() || is_external_ext(); |
0 | 279 } |
280 | |
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281 |
0 | 282 // Length of format string (e.g. "%.1234s") for printing ccstr below |
283 #define FORMAT_BUFFER_LEN 16 | |
284 | |
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285 void Flag::print_on(outputStream* st, bool withComments) { |
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286 // Don't print notproduct and develop flags in a product build. |
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287 if (is_constant_in_binary()) { |
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288 return; |
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289 } |
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290 |
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291 st->print("%9s %-40s %c= ", _type, _name, (!is_default() ? ':' : ' ')); |
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292 |
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293 if (is_bool()) { |
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294 st->print("%-16s", get_bool() ? "true" : "false"); |
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295 } |
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296 if (is_intx()) { |
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297 st->print("%-16ld", get_intx()); |
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298 } |
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299 if (is_uintx()) { |
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300 st->print("%-16lu", get_uintx()); |
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301 } |
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302 if (is_uint64_t()) { |
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303 st->print("%-16lu", get_uint64_t()); |
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304 } |
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305 if (is_double()) { |
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306 st->print("%-16f", get_double()); |
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307 } |
0 | 308 if (is_ccstr()) { |
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309 const char* cp = get_ccstr(); |
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310 if (cp != NULL) { |
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311 const char* eol; |
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312 while ((eol = strchr(cp, '\n')) != NULL) { |
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313 char format_buffer[FORMAT_BUFFER_LEN]; |
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314 size_t llen = pointer_delta(eol, cp, sizeof(char)); |
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315 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, |
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316 "%%." SIZE_FORMAT "s", llen); |
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317 st->print(format_buffer, cp); |
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318 st->cr(); |
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319 cp = eol+1; |
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320 st->print("%5s %-35s += ", "", _name); |
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321 } |
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322 st->print("%-16s", cp); |
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323 } |
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324 else st->print("%-16s", ""); |
0 | 325 } |
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326 |
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327 st->print("%-20"); |
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328 print_kind(st); |
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329 |
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330 if (withComments) { |
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331 #ifndef PRODUCT |
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332 st->print("%s", _doc); |
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333 #endif |
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334 } |
0 | 335 st->cr(); |
336 } | |
337 | |
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338 void Flag::print_kind(outputStream* st) { |
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339 struct Data { |
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340 int flag; |
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341 const char* name; |
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342 }; |
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343 |
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344 Data data[] = { |
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345 { KIND_C1, "C1" }, |
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346 { KIND_C2, "C2" }, |
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347 { KIND_ARCH, "ARCH" }, |
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348 { KIND_SHARK, "SHARK" }, |
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349 { KIND_PLATFORM_DEPENDENT, "pd" }, |
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350 { KIND_PRODUCT, "product" }, |
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351 { KIND_MANAGEABLE, "manageable" }, |
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352 { KIND_DIAGNOSTIC, "diagnostic" }, |
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353 { KIND_EXPERIMENTAL, "experimental" }, |
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354 { KIND_COMMERCIAL, "commercial" }, |
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355 { KIND_NOT_PRODUCT, "notproduct" }, |
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356 { KIND_DEVELOP, "develop" }, |
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357 { KIND_LP64_PRODUCT, "lp64_product" }, |
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358 { KIND_READ_WRITE, "rw" }, |
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359 { -1, "" } |
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360 }; |
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361 |
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362 if ((_flags & KIND_MASK) != 0) { |
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363 st->print("{"); |
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364 bool is_first = true; |
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365 |
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366 for (int i = 0; data[i].flag != -1; i++) { |
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367 Data d = data[i]; |
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368 if ((_flags & d.flag) != 0) { |
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369 if (is_first) { |
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370 is_first = false; |
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371 } else { |
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372 st->print(" "); |
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373 } |
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374 st->print(d.name); |
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375 } |
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376 } |
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377 |
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378 st->print("}"); |
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379 } |
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380 } |
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381 |
0 | 382 void Flag::print_as_flag(outputStream* st) { |
383 if (is_bool()) { | |
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384 st->print("-XX:%s%s", get_bool() ? "+" : "-", _name); |
0 | 385 } else if (is_intx()) { |
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386 st->print("-XX:%s=" INTX_FORMAT, _name, get_intx()); |
0 | 387 } else if (is_uintx()) { |
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388 st->print("-XX:%s=" UINTX_FORMAT, _name, get_uintx()); |
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389 } else if (is_uint64_t()) { |
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390 st->print("-XX:%s=" UINT64_FORMAT, _name, get_uint64_t()); |
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391 } else if (is_double()) { |
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392 st->print("-XX:%s=%f", _name, get_double()); |
0 | 393 } else if (is_ccstr()) { |
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394 st->print("-XX:%s=", _name); |
103 | 395 const char* cp = get_ccstr(); |
396 if (cp != NULL) { | |
397 // Need to turn embedded '\n's back into separate arguments | |
398 // Not so efficient to print one character at a time, | |
399 // but the choice is to do the transformation to a buffer | |
400 // and print that. And this need not be efficient. | |
401 for (; *cp != '\0'; cp += 1) { | |
402 switch (*cp) { | |
403 default: | |
404 st->print("%c", *cp); | |
405 break; | |
406 case '\n': | |
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407 st->print(" -XX:%s=", _name); |
103 | 408 break; |
409 } | |
0 | 410 } |
411 } | |
412 } else { | |
413 ShouldNotReachHere(); | |
414 } | |
415 } | |
416 | |
417 // 4991491 do not "optimize out" the was_set false values: omitting them | |
418 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
419 | |
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420 #define NAME(name) NOT_PRODUCT(&name) PRODUCT_ONLY(&CONST_##name) |
0 | 421 |
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422 #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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423 #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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424 #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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425 #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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426 #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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427 #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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428 #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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429 #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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430 #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 | 431 |
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432 #ifdef _LP64 |
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433 #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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434 #else |
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435 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
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436 #endif // _LP64 |
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437 |
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438 #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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439 #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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440 #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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441 #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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442 #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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443 #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 | 444 |
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445 #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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446 #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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447 #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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448 #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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449 #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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450 #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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451 #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 | 452 |
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453 #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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454 #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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455 #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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456 #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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457 #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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458 |
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459 #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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460 #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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461 #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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462 #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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463 #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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464 #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 | 465 |
466 static Flag flagTable[] = { | |
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467 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 | 468 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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469 #if INCLUDE_ALL_GCS |
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470 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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471 #endif // INCLUDE_ALL_GCS |
0 | 472 #ifdef COMPILER1 |
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473 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 | 474 #endif |
475 #ifdef COMPILER2 | |
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476 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 | 477 #endif |
1692 | 478 #ifdef SHARK |
479 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) | |
480 #endif | |
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481 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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482 FLAGTABLE_EXT |
0 | 483 {0, NULL, NULL} |
484 }; | |
485 | |
486 Flag* Flag::flags = flagTable; | |
487 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
488 | |
11070 | 489 inline bool str_equal(const char* s, const char* q, size_t len) { |
0 | 490 // s is null terminated, q is not! |
491 if (strlen(s) != (unsigned int) len) return false; | |
492 return strncmp(s, q, len) == 0; | |
493 } | |
494 | |
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495 // Search the flag table for a named flag |
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496 Flag* Flag::find_flag(const char* name, size_t length, bool allow_locked, bool return_flag) { |
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497 for (Flag* current = &flagTable[0]; current->_name != NULL; current++) { |
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498 if (str_equal(current->_name, name, length)) { |
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499 // Found a matching entry. |
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500 // Don't report notproduct and develop flags in product builds. |
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501 if (current->is_constant_in_binary()) { |
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502 return (return_flag == true ? current : NULL); |
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503 } |
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504 // Report locked flags only if allowed. |
0 | 505 if (!(current->is_unlocked() || current->is_unlocker())) { |
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506 if (!allow_locked) { |
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507 // disable use of locked flags, e.g. diagnostic, experimental, |
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508 // commercial... until they are explicitly unlocked |
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509 return NULL; |
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510 } |
0 | 511 } |
512 return current; | |
513 } | |
514 } | |
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515 // Flag name is not in the flag table |
0 | 516 return NULL; |
517 } | |
518 | |
11070 | 519 // Compute string similarity based on Dice's coefficient |
520 static float str_similar(const char* str1, const char* str2, size_t len2) { | |
521 int len1 = (int) strlen(str1); | |
522 int total = len1 + (int) len2; | |
523 | |
524 int hit = 0; | |
525 | |
526 for (int i = 0; i < len1 -1; ++i) { | |
527 for (int j = 0; j < (int) len2 -1; ++j) { | |
528 if ((str1[i] == str2[j]) && (str1[i+1] == str2[j+1])) { | |
529 ++hit; | |
530 break; | |
531 } | |
532 } | |
533 } | |
534 | |
535 return 2.0f * (float) hit / (float) total; | |
536 } | |
537 | |
538 Flag* Flag::fuzzy_match(const char* name, size_t length, bool allow_locked) { | |
539 float VMOptionsFuzzyMatchSimilarity = 0.7f; | |
540 Flag* match = NULL; | |
541 float score; | |
542 float max_score = -1; | |
543 | |
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544 for (Flag* current = &flagTable[0]; current->_name != NULL; current++) { |
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545 score = str_similar(current->_name, name, length); |
11070 | 546 if (score > max_score) { |
547 max_score = score; | |
548 match = current; | |
549 } | |
550 } | |
551 | |
552 if (!(match->is_unlocked() || match->is_unlocker())) { | |
553 if (!allow_locked) { | |
554 return NULL; | |
555 } | |
556 } | |
557 | |
558 if (max_score < VMOptionsFuzzyMatchSimilarity) { | |
559 return NULL; | |
560 } | |
561 | |
562 return match; | |
563 } | |
564 | |
0 | 565 // Returns the address of the index'th element |
566 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
567 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
568 return &Flag::flags[flag]; | |
569 } | |
570 | |
571 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
572 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
573 Flag* f = &Flag::flags[flag]; | |
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574 return f->is_default(); |
0 | 575 } |
576 | |
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577 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
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578 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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579 Flag* f = &Flag::flags[flag]; |
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580 return f->is_ergonomic(); |
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581 } |
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582 |
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583 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
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584 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
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585 Flag* f = &Flag::flags[flag]; |
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586 return f->is_command_line(); |
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587 } |
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588 |
0 | 589 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
590 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
591 if (result == NULL) return false; | |
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592 *value = result->is_command_line(); |
0 | 593 return true; |
594 } | |
595 | |
596 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { | |
597 Flag* result = Flag::find_flag(name, len); | |
598 if (result == NULL) return false; | |
599 if (!result->is_bool()) return false; | |
600 *value = result->get_bool(); | |
601 return true; | |
602 } | |
603 | |
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604 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, Flag::Flags origin) { |
0 | 605 Flag* result = Flag::find_flag(name, len); |
606 if (result == NULL) return false; | |
607 if (!result->is_bool()) return false; | |
608 bool old_value = result->get_bool(); | |
609 result->set_bool(*value); | |
610 *value = old_value; | |
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611 result->set_origin(origin); |
0 | 612 return true; |
613 } | |
614 | |
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615 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, Flag::Flags origin) { |
0 | 616 Flag* faddr = address_of_flag(flag); |
617 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
618 faddr->set_bool(value); | |
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619 faddr->set_origin(origin); |
0 | 620 } |
621 | |
622 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
623 Flag* result = Flag::find_flag(name, len); | |
624 if (result == NULL) return false; | |
625 if (!result->is_intx()) return false; | |
626 *value = result->get_intx(); | |
627 return true; | |
628 } | |
629 | |
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630 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, Flag::Flags origin) { |
0 | 631 Flag* result = Flag::find_flag(name, len); |
632 if (result == NULL) return false; | |
633 if (!result->is_intx()) return false; | |
634 intx old_value = result->get_intx(); | |
635 result->set_intx(*value); | |
636 *value = old_value; | |
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637 result->set_origin(origin); |
0 | 638 return true; |
639 } | |
640 | |
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641 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, Flag::Flags origin) { |
0 | 642 Flag* faddr = address_of_flag(flag); |
643 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
644 faddr->set_intx(value); | |
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645 faddr->set_origin(origin); |
0 | 646 } |
647 | |
648 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
649 Flag* result = Flag::find_flag(name, len); | |
650 if (result == NULL) return false; | |
651 if (!result->is_uintx()) return false; | |
652 *value = result->get_uintx(); | |
653 return true; | |
654 } | |
655 | |
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656 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, Flag::Flags origin) { |
0 | 657 Flag* result = Flag::find_flag(name, len); |
658 if (result == NULL) return false; | |
659 if (!result->is_uintx()) return false; | |
660 uintx old_value = result->get_uintx(); | |
661 result->set_uintx(*value); | |
662 *value = old_value; | |
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663 result->set_origin(origin); |
0 | 664 return true; |
665 } | |
666 | |
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667 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, Flag::Flags origin) { |
0 | 668 Flag* faddr = address_of_flag(flag); |
669 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
670 faddr->set_uintx(value); | |
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671 faddr->set_origin(origin); |
0 | 672 } |
673 | |
1064 | 674 bool CommandLineFlags::uint64_tAt(char* name, size_t len, uint64_t* value) { |
675 Flag* result = Flag::find_flag(name, len); | |
676 if (result == NULL) return false; | |
677 if (!result->is_uint64_t()) return false; | |
678 *value = result->get_uint64_t(); | |
679 return true; | |
680 } | |
681 | |
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682 bool CommandLineFlags::uint64_tAtPut(char* name, size_t len, uint64_t* value, Flag::Flags origin) { |
1064 | 683 Flag* result = Flag::find_flag(name, len); |
684 if (result == NULL) return false; | |
685 if (!result->is_uint64_t()) return false; | |
686 uint64_t old_value = result->get_uint64_t(); | |
687 result->set_uint64_t(*value); | |
688 *value = old_value; | |
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689 result->set_origin(origin); |
1064 | 690 return true; |
691 } | |
692 | |
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693 void CommandLineFlagsEx::uint64_tAtPut(CommandLineFlagWithType flag, uint64_t value, Flag::Flags origin) { |
1064 | 694 Flag* faddr = address_of_flag(flag); |
695 guarantee(faddr != NULL && faddr->is_uint64_t(), "wrong flag type"); | |
696 faddr->set_uint64_t(value); | |
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697 faddr->set_origin(origin); |
1064 | 698 } |
699 | |
0 | 700 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { |
701 Flag* result = Flag::find_flag(name, len); | |
702 if (result == NULL) return false; | |
703 if (!result->is_double()) return false; | |
704 *value = result->get_double(); | |
705 return true; | |
706 } | |
707 | |
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708 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, Flag::Flags origin) { |
0 | 709 Flag* result = Flag::find_flag(name, len); |
710 if (result == NULL) return false; | |
711 if (!result->is_double()) return false; | |
712 double old_value = result->get_double(); | |
713 result->set_double(*value); | |
714 *value = old_value; | |
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715 result->set_origin(origin); |
0 | 716 return true; |
717 } | |
718 | |
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719 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, Flag::Flags origin) { |
0 | 720 Flag* faddr = address_of_flag(flag); |
721 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
722 faddr->set_double(value); | |
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723 faddr->set_origin(origin); |
0 | 724 } |
725 | |
726 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
727 Flag* result = Flag::find_flag(name, len); | |
728 if (result == NULL) return false; | |
729 if (!result->is_ccstr()) return false; | |
730 *value = result->get_ccstr(); | |
731 return true; | |
732 } | |
733 | |
734 // Contract: Flag will make private copy of the incoming value. | |
735 // Outgoing value is always malloc-ed, and caller MUST call free. | |
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736 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, Flag::Flags origin) { |
0 | 737 Flag* result = Flag::find_flag(name, len); |
738 if (result == NULL) return false; | |
739 if (!result->is_ccstr()) return false; | |
740 ccstr old_value = result->get_ccstr(); | |
370
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741 char* new_value = NULL; |
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742 if (*value != NULL) { |
6197 | 743 new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1, mtInternal); |
370
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744 strcpy(new_value, *value); |
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745 } |
0 | 746 result->set_ccstr(new_value); |
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747 if (result->is_default() && old_value != NULL) { |
0 | 748 // Prior value is NOT heap allocated, but was a literal constant. |
6197 | 749 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1, mtInternal); |
0 | 750 strcpy(old_value_to_free, old_value); |
751 old_value = old_value_to_free; | |
752 } | |
753 *value = old_value; | |
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754 result->set_origin(origin); |
0 | 755 return true; |
756 } | |
757 | |
758 // Contract: Flag will make private copy of the incoming value. | |
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759 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, Flag::Flags origin) { |
0 | 760 Flag* faddr = address_of_flag(flag); |
761 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
762 ccstr old_value = faddr->get_ccstr(); | |
6197 | 763 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1, mtInternal); |
0 | 764 strcpy(new_value, value); |
765 faddr->set_ccstr(new_value); | |
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766 if (!faddr->is_default() && old_value != NULL) { |
0 | 767 // Prior value is heap allocated so free it. |
6197 | 768 FREE_C_HEAP_ARRAY(char, old_value, mtInternal); |
0 | 769 } |
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770 faddr->set_origin(origin); |
0 | 771 } |
772 | |
773 extern "C" { | |
774 static int compare_flags(const void* void_a, const void* void_b) { | |
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775 return strcmp((*((Flag**) void_a))->_name, (*((Flag**) void_b))->_name); |
0 | 776 } |
777 } | |
778 | |
4773 | 779 void CommandLineFlags::printSetFlags(outputStream* out) { |
0 | 780 // Print which flags were set on the command line |
781 // note: this method is called before the thread structure is in place | |
782 // which means resource allocation cannot be used. | |
783 | |
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784 // The last entry is the null entry. |
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785 const size_t length = Flag::numFlags - 1; |
0 | 786 |
787 // Sort | |
6197 | 788 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length, mtInternal); |
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789 for (size_t i = 0; i < length; i++) { |
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790 array[i] = &flagTable[i]; |
0 | 791 } |
792 qsort(array, length, sizeof(Flag*), compare_flags); | |
793 | |
794 // Print | |
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795 for (size_t i = 0; i < length; i++) { |
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796 if (array[i]->get_origin() /* naked field! */) { |
4773 | 797 array[i]->print_as_flag(out); |
798 out->print(" "); | |
0 | 799 } |
800 } | |
4773 | 801 out->cr(); |
6197 | 802 FREE_C_HEAP_ARRAY(Flag*, array, mtInternal); |
0 | 803 } |
804 | |
805 #ifndef PRODUCT | |
806 | |
807 | |
808 void CommandLineFlags::verify() { | |
809 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
810 } | |
811 | |
1150 | 812 #endif // PRODUCT |
813 | |
4773 | 814 void CommandLineFlags::printFlags(outputStream* out, bool withComments) { |
0 | 815 // Print the flags sorted by name |
816 // note: this method is called before the thread structure is in place | |
817 // which means resource allocation cannot be used. | |
818 | |
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819 // The last entry is the null entry. |
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820 const size_t length = Flag::numFlags - 1; |
0 | 821 |
822 // Sort | |
6197 | 823 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length, mtInternal); |
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824 for (size_t i = 0; i < length; i++) { |
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825 array[i] = &flagTable[i]; |
0 | 826 } |
827 qsort(array, length, sizeof(Flag*), compare_flags); | |
828 | |
829 // Print | |
4773 | 830 out->print_cr("[Global flags]"); |
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831 for (size_t i = 0; i < length; i++) { |
0 | 832 if (array[i]->is_unlocked()) { |
4773 | 833 array[i]->print_on(out, withComments); |
0 | 834 } |
835 } | |
6197 | 836 FREE_C_HEAP_ARRAY(Flag*, array, mtInternal); |
0 | 837 } |