Mercurial > hg > truffle
annotate src/share/vm/runtime/globals.cpp @ 113:ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
Summary: Compressed oops in instances, arrays, and headers. Code contributors are coleenp, phh, never, swamyv
Reviewed-by: jmasa, kamg, acorn, tbell, kvn, rasbold
| author | coleenp |
|---|---|
| date | Sun, 13 Apr 2008 17:43:42 -0400 |
| parents | 38a50dd839cf |
| children | d1605aabd0a1 37f87013dfd8 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 2 * Copyright 1997-2007 Sun Microsystems, Inc. All Rights Reserved. | |
| 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 * | |
| 19 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara, | |
| 20 * CA 95054 USA or visit www.sun.com if you need additional information or | |
| 21 * have any questions. | |
| 22 * | |
| 23 */ | |
| 24 | |
| 25 # include "incls/_precompiled.incl" | |
| 26 # include "incls/_globals.cpp.incl" | |
| 27 | |
| 28 | |
| 29 RUNTIME_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
| 30 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
| 31 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG, \ | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
32 MATERIALIZE_MANAGEABLE_FLAG, MATERIALIZE_PRODUCT_RW_FLAG, \ |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
33 MATERIALIZE_LP64_PRODUCT_FLAG) |
| 0 | 34 |
| 35 RUNTIME_OS_FLAGS(MATERIALIZE_DEVELOPER_FLAG, MATERIALIZE_PD_DEVELOPER_FLAG, \ | |
| 36 MATERIALIZE_PRODUCT_FLAG, MATERIALIZE_PD_PRODUCT_FLAG, \ | |
| 37 MATERIALIZE_DIAGNOSTIC_FLAG, MATERIALIZE_NOTPRODUCT_FLAG) | |
| 38 | |
| 39 bool Flag::is_unlocker() const { | |
| 40 return strcmp(name, "UnlockDiagnosticVMOptions") == 0; | |
| 41 } | |
| 42 | |
| 43 bool Flag::is_unlocked() const { | |
| 44 if (strcmp(kind, "{diagnostic}") == 0) { | |
| 45 return UnlockDiagnosticVMOptions; | |
| 46 } else { | |
| 47 return true; | |
| 48 } | |
| 49 } | |
| 50 | |
| 51 bool Flag::is_writeable() const { | |
| 52 return (strcmp(kind, "{manageable}") == 0 || strcmp(kind, "{product rw}") == 0); | |
| 53 } | |
| 54 | |
| 55 // All flags except "manageable" are assumed internal flags. | |
| 56 // Long term, we need to define a mechanism to specify which flags | |
| 57 // are external/stable and change this function accordingly. | |
| 58 bool Flag::is_external() const { | |
| 59 return (strcmp(kind, "{manageable}") == 0); | |
| 60 } | |
| 61 | |
| 62 // Length of format string (e.g. "%.1234s") for printing ccstr below | |
| 63 #define FORMAT_BUFFER_LEN 16 | |
| 64 | |
| 65 void Flag::print_on(outputStream* st) { | |
| 66 st->print("%5s %-35s %c= ", type, name, (origin != DEFAULT ? ':' : ' ')); | |
| 67 if (is_bool()) st->print("%-16s", get_bool() ? "true" : "false"); | |
| 68 if (is_intx()) st->print("%-16ld", get_intx()); | |
| 69 if (is_uintx()) st->print("%-16lu", get_uintx()); | |
| 70 if (is_ccstr()) { | |
| 71 const char* cp = get_ccstr(); | |
| 103 | 72 if (cp != NULL) { |
| 73 const char* eol; | |
| 74 while ((eol = strchr(cp, '\n')) != NULL) { | |
| 75 char format_buffer[FORMAT_BUFFER_LEN]; | |
| 76 size_t llen = pointer_delta(eol, cp, sizeof(char)); | |
| 77 jio_snprintf(format_buffer, FORMAT_BUFFER_LEN, | |
| 78 "%%." SIZE_FORMAT "s", llen); | |
| 79 st->print(format_buffer, cp); | |
| 80 st->cr(); | |
| 81 cp = eol+1; | |
| 82 st->print("%5s %-35s += ", "", name); | |
| 83 } | |
| 84 st->print("%-16s", cp); | |
| 0 | 85 } |
| 86 } | |
| 87 st->print(" %s", kind); | |
| 88 st->cr(); | |
| 89 } | |
| 90 | |
| 91 void Flag::print_as_flag(outputStream* st) { | |
| 92 if (is_bool()) { | |
| 93 st->print("-XX:%s%s", get_bool() ? "+" : "-", name); | |
| 94 } else if (is_intx()) { | |
| 95 st->print("-XX:%s=" INTX_FORMAT, name, get_intx()); | |
| 96 } else if (is_uintx()) { | |
| 97 st->print("-XX:%s=" UINTX_FORMAT, name, get_uintx()); | |
| 98 } else if (is_ccstr()) { | |
| 99 st->print("-XX:%s=", name); | |
| 103 | 100 const char* cp = get_ccstr(); |
| 101 if (cp != NULL) { | |
| 102 // Need to turn embedded '\n's back into separate arguments | |
| 103 // Not so efficient to print one character at a time, | |
| 104 // but the choice is to do the transformation to a buffer | |
| 105 // and print that. And this need not be efficient. | |
| 106 for (; *cp != '\0'; cp += 1) { | |
| 107 switch (*cp) { | |
| 108 default: | |
| 109 st->print("%c", *cp); | |
| 110 break; | |
| 111 case '\n': | |
| 112 st->print(" -XX:%s=", name); | |
| 113 break; | |
| 114 } | |
| 0 | 115 } |
| 116 } | |
| 117 } else { | |
| 118 ShouldNotReachHere(); | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 // 4991491 do not "optimize out" the was_set false values: omitting them | |
| 123 // tickles a Microsoft compiler bug causing flagTable to be malformed | |
| 124 | |
| 125 #define RUNTIME_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{product}", DEFAULT }, | |
| 126 #define RUNTIME_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{pd product}", DEFAULT }, | |
| 127 #define RUNTIME_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{diagnostic}", DEFAULT }, | |
| 128 #define RUNTIME_MANAGEABLE_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{manageable}", DEFAULT }, | |
| 129 #define RUNTIME_PRODUCT_RW_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{product rw}", DEFAULT }, | |
| 130 | |
| 131 #ifdef PRODUCT | |
| 132 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
| 133 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
| 134 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
| 135 #else | |
| 136 #define RUNTIME_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "", DEFAULT }, | |
| 137 #define RUNTIME_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{pd}", DEFAULT }, | |
| 138 #define RUNTIME_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{notproduct}", DEFAULT }, | |
| 139 #endif | |
| 140 | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
141 #ifdef _LP64 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
142 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{lp64_product}", DEFAULT }, |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
143 #else |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
144 #define RUNTIME_LP64_PRODUCT_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
145 #endif // _LP64 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
146 |
| 0 | 147 #define C1_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C1 product}", DEFAULT }, |
| 148 #define C1_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C1 pd product}", DEFAULT }, | |
| 149 #ifdef PRODUCT | |
| 150 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
| 151 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
| 152 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
| 153 #else | |
| 154 #define C1_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C1}", DEFAULT }, | |
| 155 #define C1_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C1 pd}", DEFAULT }, | |
| 156 #define C1_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C1 notproduct}", DEFAULT }, | |
| 157 #endif | |
| 158 | |
| 159 | |
| 160 #define C2_PRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 product}", DEFAULT }, | |
| 161 #define C2_PD_PRODUCT_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C2 pd product}", DEFAULT }, | |
| 162 #define C2_DIAGNOSTIC_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 diagnostic}", DEFAULT }, | |
| 163 #ifdef PRODUCT | |
| 164 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) /* flag is constant */ | |
| 165 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) /* flag is constant */ | |
| 166 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) | |
| 167 #else | |
| 168 #define C2_DEVELOP_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2}", DEFAULT }, | |
| 169 #define C2_PD_DEVELOP_FLAG_STRUCT(type, name, doc) { #type, XSTR(name), &name, "{C2 pd}", DEFAULT }, | |
| 170 #define C2_NOTPRODUCT_FLAG_STRUCT(type, name, value, doc) { #type, XSTR(name), &name, "{C2 notproduct}", DEFAULT }, | |
| 171 #endif | |
| 172 | |
| 173 | |
| 174 static Flag flagTable[] = { | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
103
diff
changeset
|
175 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_NOTPRODUCT_FLAG_STRUCT, RUNTIME_MANAGEABLE_FLAG_STRUCT, RUNTIME_PRODUCT_RW_FLAG_STRUCT, RUNTIME_LP64_PRODUCT_FLAG_STRUCT) |
| 0 | 176 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) |
| 177 #ifdef COMPILER1 | |
| 178 C1_FLAGS(C1_DEVELOP_FLAG_STRUCT, C1_PD_DEVELOP_FLAG_STRUCT, C1_PRODUCT_FLAG_STRUCT, C1_PD_PRODUCT_FLAG_STRUCT, C1_NOTPRODUCT_FLAG_STRUCT) | |
| 179 #endif | |
| 180 #ifdef COMPILER2 | |
| 181 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_NOTPRODUCT_FLAG_STRUCT) | |
| 182 #endif | |
| 183 {0, NULL, NULL} | |
| 184 }; | |
| 185 | |
| 186 Flag* Flag::flags = flagTable; | |
| 187 size_t Flag::numFlags = (sizeof(flagTable) / sizeof(Flag)); | |
| 188 | |
| 189 inline bool str_equal(const char* s, char* q, size_t len) { | |
| 190 // s is null terminated, q is not! | |
| 191 if (strlen(s) != (unsigned int) len) return false; | |
| 192 return strncmp(s, q, len) == 0; | |
| 193 } | |
| 194 | |
| 195 Flag* Flag::find_flag(char* name, size_t length) { | |
| 196 for (Flag* current = &flagTable[0]; current->name; current++) { | |
| 197 if (str_equal(current->name, name, length)) { | |
| 198 if (!(current->is_unlocked() || current->is_unlocker())) { | |
| 199 // disable use of diagnostic flags until they are unlocked | |
| 200 return NULL; | |
| 201 } | |
| 202 return current; | |
| 203 } | |
| 204 } | |
| 205 return NULL; | |
| 206 } | |
| 207 | |
| 208 // Returns the address of the index'th element | |
| 209 static Flag* address_of_flag(CommandLineFlagWithType flag) { | |
| 210 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
| 211 return &Flag::flags[flag]; | |
| 212 } | |
| 213 | |
| 214 bool CommandLineFlagsEx::is_default(CommandLineFlag flag) { | |
| 215 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); | |
| 216 Flag* f = &Flag::flags[flag]; | |
| 217 return (f->origin == DEFAULT); | |
| 218 } | |
| 219 | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
220 bool CommandLineFlagsEx::is_ergo(CommandLineFlag flag) { |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
221 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
222 Flag* f = &Flag::flags[flag]; |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
223 return (f->origin == ERGONOMIC); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
224 } |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
225 |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
226 bool CommandLineFlagsEx::is_cmdline(CommandLineFlag flag) { |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
227 assert((size_t)flag < Flag::numFlags, "bad command line flag index"); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
228 Flag* f = &Flag::flags[flag]; |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
229 return (f->origin == COMMAND_LINE); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
230 } |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
0
diff
changeset
|
231 |
| 0 | 232 bool CommandLineFlags::wasSetOnCmdline(const char* name, bool* value) { |
| 233 Flag* result = Flag::find_flag((char*)name, strlen(name)); | |
| 234 if (result == NULL) return false; | |
| 235 *value = (result->origin == COMMAND_LINE); | |
| 236 return true; | |
| 237 } | |
| 238 | |
| 239 bool CommandLineFlags::boolAt(char* name, size_t len, bool* value) { | |
| 240 Flag* result = Flag::find_flag(name, len); | |
| 241 if (result == NULL) return false; | |
| 242 if (!result->is_bool()) return false; | |
| 243 *value = result->get_bool(); | |
| 244 return true; | |
| 245 } | |
| 246 | |
| 247 bool CommandLineFlags::boolAtPut(char* name, size_t len, bool* value, FlagValueOrigin origin) { | |
| 248 Flag* result = Flag::find_flag(name, len); | |
| 249 if (result == NULL) return false; | |
| 250 if (!result->is_bool()) return false; | |
| 251 bool old_value = result->get_bool(); | |
| 252 result->set_bool(*value); | |
| 253 *value = old_value; | |
| 254 result->origin = origin; | |
| 255 return true; | |
| 256 } | |
| 257 | |
| 258 void CommandLineFlagsEx::boolAtPut(CommandLineFlagWithType flag, bool value, FlagValueOrigin origin) { | |
| 259 Flag* faddr = address_of_flag(flag); | |
| 260 guarantee(faddr != NULL && faddr->is_bool(), "wrong flag type"); | |
| 261 faddr->set_bool(value); | |
| 262 faddr->origin = origin; | |
| 263 } | |
| 264 | |
| 265 bool CommandLineFlags::intxAt(char* name, size_t len, intx* value) { | |
| 266 Flag* result = Flag::find_flag(name, len); | |
| 267 if (result == NULL) return false; | |
| 268 if (!result->is_intx()) return false; | |
| 269 *value = result->get_intx(); | |
| 270 return true; | |
| 271 } | |
| 272 | |
| 273 bool CommandLineFlags::intxAtPut(char* name, size_t len, intx* value, FlagValueOrigin origin) { | |
| 274 Flag* result = Flag::find_flag(name, len); | |
| 275 if (result == NULL) return false; | |
| 276 if (!result->is_intx()) return false; | |
| 277 intx old_value = result->get_intx(); | |
| 278 result->set_intx(*value); | |
| 279 *value = old_value; | |
| 280 result->origin = origin; | |
| 281 return true; | |
| 282 } | |
| 283 | |
| 284 void CommandLineFlagsEx::intxAtPut(CommandLineFlagWithType flag, intx value, FlagValueOrigin origin) { | |
| 285 Flag* faddr = address_of_flag(flag); | |
| 286 guarantee(faddr != NULL && faddr->is_intx(), "wrong flag type"); | |
| 287 faddr->set_intx(value); | |
| 288 faddr->origin = origin; | |
| 289 } | |
| 290 | |
| 291 bool CommandLineFlags::uintxAt(char* name, size_t len, uintx* value) { | |
| 292 Flag* result = Flag::find_flag(name, len); | |
| 293 if (result == NULL) return false; | |
| 294 if (!result->is_uintx()) return false; | |
| 295 *value = result->get_uintx(); | |
| 296 return true; | |
| 297 } | |
| 298 | |
| 299 bool CommandLineFlags::uintxAtPut(char* name, size_t len, uintx* value, FlagValueOrigin origin) { | |
| 300 Flag* result = Flag::find_flag(name, len); | |
| 301 if (result == NULL) return false; | |
| 302 if (!result->is_uintx()) return false; | |
| 303 uintx old_value = result->get_uintx(); | |
| 304 result->set_uintx(*value); | |
| 305 *value = old_value; | |
| 306 result->origin = origin; | |
| 307 return true; | |
| 308 } | |
| 309 | |
| 310 void CommandLineFlagsEx::uintxAtPut(CommandLineFlagWithType flag, uintx value, FlagValueOrigin origin) { | |
| 311 Flag* faddr = address_of_flag(flag); | |
| 312 guarantee(faddr != NULL && faddr->is_uintx(), "wrong flag type"); | |
| 313 faddr->set_uintx(value); | |
| 314 faddr->origin = origin; | |
| 315 } | |
| 316 | |
| 317 bool CommandLineFlags::doubleAt(char* name, size_t len, double* value) { | |
| 318 Flag* result = Flag::find_flag(name, len); | |
| 319 if (result == NULL) return false; | |
| 320 if (!result->is_double()) return false; | |
| 321 *value = result->get_double(); | |
| 322 return true; | |
| 323 } | |
| 324 | |
| 325 bool CommandLineFlags::doubleAtPut(char* name, size_t len, double* value, FlagValueOrigin origin) { | |
| 326 Flag* result = Flag::find_flag(name, len); | |
| 327 if (result == NULL) return false; | |
| 328 if (!result->is_double()) return false; | |
| 329 double old_value = result->get_double(); | |
| 330 result->set_double(*value); | |
| 331 *value = old_value; | |
| 332 result->origin = origin; | |
| 333 return true; | |
| 334 } | |
| 335 | |
| 336 void CommandLineFlagsEx::doubleAtPut(CommandLineFlagWithType flag, double value, FlagValueOrigin origin) { | |
| 337 Flag* faddr = address_of_flag(flag); | |
| 338 guarantee(faddr != NULL && faddr->is_double(), "wrong flag type"); | |
| 339 faddr->set_double(value); | |
| 340 faddr->origin = origin; | |
| 341 } | |
| 342 | |
| 343 bool CommandLineFlags::ccstrAt(char* name, size_t len, ccstr* value) { | |
| 344 Flag* result = Flag::find_flag(name, len); | |
| 345 if (result == NULL) return false; | |
| 346 if (!result->is_ccstr()) return false; | |
| 347 *value = result->get_ccstr(); | |
| 348 return true; | |
| 349 } | |
| 350 | |
| 351 // Contract: Flag will make private copy of the incoming value. | |
| 352 // Outgoing value is always malloc-ed, and caller MUST call free. | |
| 353 bool CommandLineFlags::ccstrAtPut(char* name, size_t len, ccstr* value, FlagValueOrigin origin) { | |
| 354 Flag* result = Flag::find_flag(name, len); | |
| 355 if (result == NULL) return false; | |
| 356 if (!result->is_ccstr()) return false; | |
| 357 ccstr old_value = result->get_ccstr(); | |
| 358 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(*value)+1); | |
| 359 strcpy(new_value, *value); | |
| 360 result->set_ccstr(new_value); | |
| 361 if (result->origin == DEFAULT && old_value != NULL) { | |
| 362 // Prior value is NOT heap allocated, but was a literal constant. | |
| 363 char* old_value_to_free = NEW_C_HEAP_ARRAY(char, strlen(old_value)+1); | |
| 364 strcpy(old_value_to_free, old_value); | |
| 365 old_value = old_value_to_free; | |
| 366 } | |
| 367 *value = old_value; | |
| 368 result->origin = origin; | |
| 369 return true; | |
| 370 } | |
| 371 | |
| 372 // Contract: Flag will make private copy of the incoming value. | |
| 373 void CommandLineFlagsEx::ccstrAtPut(CommandLineFlagWithType flag, ccstr value, FlagValueOrigin origin) { | |
| 374 Flag* faddr = address_of_flag(flag); | |
| 375 guarantee(faddr != NULL && faddr->is_ccstr(), "wrong flag type"); | |
| 376 ccstr old_value = faddr->get_ccstr(); | |
| 377 char* new_value = NEW_C_HEAP_ARRAY(char, strlen(value)+1); | |
| 378 strcpy(new_value, value); | |
| 379 faddr->set_ccstr(new_value); | |
| 380 if (faddr->origin != DEFAULT && old_value != NULL) { | |
| 381 // Prior value is heap allocated so free it. | |
| 382 FREE_C_HEAP_ARRAY(char, old_value); | |
| 383 } | |
| 384 faddr->origin = origin; | |
| 385 } | |
| 386 | |
| 387 extern "C" { | |
| 388 static int compare_flags(const void* void_a, const void* void_b) { | |
| 389 return strcmp((*((Flag**) void_a))->name, (*((Flag**) void_b))->name); | |
| 390 } | |
| 391 } | |
| 392 | |
| 393 void CommandLineFlags::printSetFlags() { | |
| 394 // Print which flags were set on the command line | |
| 395 // note: this method is called before the thread structure is in place | |
| 396 // which means resource allocation cannot be used. | |
| 397 | |
| 398 // Compute size | |
| 399 int length= 0; | |
| 400 while (flagTable[length].name != NULL) length++; | |
| 401 | |
| 402 // Sort | |
| 403 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
| 404 for (int index = 0; index < length; index++) { | |
| 405 array[index] = &flagTable[index]; | |
| 406 } | |
| 407 qsort(array, length, sizeof(Flag*), compare_flags); | |
| 408 | |
| 409 // Print | |
| 410 for (int i = 0; i < length; i++) { | |
| 411 if (array[i]->origin /* naked field! */) { | |
| 412 array[i]->print_as_flag(tty); | |
| 413 tty->print(" "); | |
| 414 } | |
| 415 } | |
| 416 tty->cr(); | |
| 417 FREE_C_HEAP_ARRAY(Flag*, array); | |
| 418 } | |
| 419 | |
| 420 #ifndef PRODUCT | |
| 421 | |
| 422 | |
| 423 void CommandLineFlags::verify() { | |
| 424 assert(Arguments::check_vm_args_consistency(), "Some flag settings conflict"); | |
| 425 } | |
| 426 | |
| 427 void CommandLineFlags::printFlags() { | |
| 428 // Print the flags sorted by name | |
| 429 // note: this method is called before the thread structure is in place | |
| 430 // which means resource allocation cannot be used. | |
| 431 | |
| 432 // Compute size | |
| 433 int length= 0; | |
| 434 while (flagTable[length].name != NULL) length++; | |
| 435 | |
| 436 // Sort | |
| 437 Flag** array = NEW_C_HEAP_ARRAY(Flag*, length); | |
| 438 for (int index = 0; index < length; index++) { | |
| 439 array[index] = &flagTable[index]; | |
| 440 } | |
| 441 qsort(array, length, sizeof(Flag*), compare_flags); | |
| 442 | |
| 443 // Print | |
| 444 tty->print_cr("[Global flags]"); | |
| 445 for (int i = 0; i < length; i++) { | |
| 446 if (array[i]->is_unlocked()) { | |
| 447 array[i]->print_on(tty); | |
| 448 } | |
| 449 } | |
| 450 FREE_C_HEAP_ARRAY(Flag*, array); | |
| 451 } | |
| 452 | |
| 453 #endif |