Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 1890:f5c8d6e5bfee
Merge
| author | jcoomes |
|---|---|
| date | Mon, 01 Nov 2010 10:49:14 -0700 |
| parents | 4e22405d98d6 a7214d79fcf1 |
| children | 9de67bf4244d |
| rev | line source |
|---|---|
| 0 | 1 /* |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
2 * Copyright (c) 1997, 2010, 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 25 #include "incls/_precompiled.incl" | |
| 26 #include "incls/_arguments.cpp.incl" | |
| 27 | |
| 28 #define DEFAULT_VENDOR_URL_BUG "http://java.sun.com/webapps/bugreport/crash.jsp" | |
| 29 #define DEFAULT_JAVA_LAUNCHER "generic" | |
| 30 | |
| 31 char** Arguments::_jvm_flags_array = NULL; | |
| 32 int Arguments::_num_jvm_flags = 0; | |
| 33 char** Arguments::_jvm_args_array = NULL; | |
| 34 int Arguments::_num_jvm_args = 0; | |
| 35 char* Arguments::_java_command = NULL; | |
| 36 SystemProperty* Arguments::_system_properties = NULL; | |
| 37 const char* Arguments::_gc_log_filename = NULL; | |
| 38 bool Arguments::_has_profile = false; | |
| 39 bool Arguments::_has_alloc_profile = false; | |
| 40 uintx Arguments::_min_heap_size = 0; | |
| 41 Arguments::Mode Arguments::_mode = _mixed; | |
| 42 bool Arguments::_java_compiler = false; | |
| 43 bool Arguments::_xdebug_mode = false; | |
| 44 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
| 45 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
| 46 int Arguments::_sun_java_launcher_pid = -1; | |
| 47 | |
| 48 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
| 49 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 50 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 51 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 52 bool Arguments::_ClipInlining = ClipInlining; | |
| 53 | |
| 54 char* Arguments::SharedArchivePath = NULL; | |
| 55 | |
| 56 AgentLibraryList Arguments::_libraryList; | |
| 57 AgentLibraryList Arguments::_agentList; | |
| 58 | |
| 59 abort_hook_t Arguments::_abort_hook = NULL; | |
| 60 exit_hook_t Arguments::_exit_hook = NULL; | |
| 61 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
| 62 | |
| 63 | |
| 64 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
| 65 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
| 66 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
| 67 SystemProperty *Arguments::_java_library_path = NULL; | |
| 68 SystemProperty *Arguments::_java_home = NULL; | |
| 69 SystemProperty *Arguments::_java_class_path = NULL; | |
| 70 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
| 71 | |
| 72 char* Arguments::_meta_index_path = NULL; | |
| 73 char* Arguments::_meta_index_dir = NULL; | |
| 74 | |
| 75 static bool force_client_mode = false; | |
| 76 | |
| 77 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
| 78 | |
| 79 static bool match_option(const JavaVMOption *option, const char* name, | |
| 80 const char** tail) { | |
| 81 int len = (int)strlen(name); | |
| 82 if (strncmp(option->optionString, name, len) == 0) { | |
| 83 *tail = option->optionString + len; | |
| 84 return true; | |
| 85 } else { | |
| 86 return false; | |
| 87 } | |
| 88 } | |
| 89 | |
| 90 static void logOption(const char* opt) { | |
| 91 if (PrintVMOptions) { | |
| 92 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
| 93 } | |
| 94 } | |
| 95 | |
| 96 // Process java launcher properties. | |
| 97 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
| 98 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
| 99 // Must do this before setting up other system properties, | |
| 100 // as some of them may depend on launcher type. | |
| 101 for (int index = 0; index < args->nOptions; index++) { | |
| 102 const JavaVMOption* option = args->options + index; | |
| 103 const char* tail; | |
| 104 | |
| 105 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
| 106 process_java_launcher_argument(tail, option->extraInfo); | |
| 107 continue; | |
| 108 } | |
| 109 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
| 110 _sun_java_launcher_pid = atoi(tail); | |
| 111 continue; | |
| 112 } | |
| 113 } | |
| 114 } | |
| 115 | |
| 116 // Initialize system properties key and value. | |
| 117 void Arguments::init_system_properties() { | |
| 118 | |
| 119 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.version", "1.0", false)); | |
| 120 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
| 121 "Java Virtual Machine Specification", false)); | |
| 122 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
| 123 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
| 124 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
| 125 | |
| 126 // following are JVMTI agent writeable properties. | |
| 127 // Properties values are set to NULL and they are | |
| 128 // os specific they are initialized in os::init_system_properties_values(). | |
| 129 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
| 130 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
| 131 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
| 132 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
| 133 _java_home = new SystemProperty("java.home", NULL, true); | |
| 134 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
| 135 | |
| 136 _java_class_path = new SystemProperty("java.class.path", "", true); | |
| 137 | |
| 138 // Add to System Property list. | |
| 139 PropertyList_add(&_system_properties, _java_ext_dirs); | |
| 140 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
| 141 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
| 142 PropertyList_add(&_system_properties, _java_library_path); | |
| 143 PropertyList_add(&_system_properties, _java_home); | |
| 144 PropertyList_add(&_system_properties, _java_class_path); | |
| 145 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
| 146 | |
| 147 // Set OS specific system properties values | |
| 148 os::init_system_properties_values(); | |
| 149 } | |
| 150 | |
|
1864
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
151 |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
152 // Update/Initialize System properties after JDK version number is known |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
153 void Arguments::init_version_specific_system_properties() { |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
154 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.vendor", |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
155 JDK_Version::is_gte_jdk17x_version() ? "Oracle Corporation" : "Sun Microsystems Inc.", false)); |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
156 PropertyList_add(&_system_properties, new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
157 } |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
158 |
| 242 | 159 /** |
| 160 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
| 161 * When a flag is eliminated, it can be added to this list in order to | |
| 162 * continue accepting this flag on the command-line, while issuing a warning | |
| 163 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
| 164 * limit, we flatly refuse to admit the existence of the flag. This allows | |
| 165 * a flag to die correctly over JDK releases using HSX. | |
| 166 */ | |
| 167 typedef struct { | |
| 168 const char* name; | |
| 169 JDK_Version obsoleted_in; // when the flag went away | |
| 170 JDK_Version accept_until; // which version to start denying the existence | |
| 171 } ObsoleteFlag; | |
| 0 | 172 |
| 242 | 173 static ObsoleteFlag obsolete_jvm_flags[] = { |
| 174 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 175 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 176 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 177 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 178 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 179 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 180 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 181 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 182 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 183 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 184 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 185 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 186 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 187 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
| 1064 | 188 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
| 189 { "DefaultInitialRAMFraction", | |
| 190 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
|
1706
9d7a8ab3736b
6962589: remove breadth first scanning code from parallel gc
tonyp
parents:
1628
diff
changeset
|
191 { "UseDepthFirstScavengeOrder", |
|
9d7a8ab3736b
6962589: remove breadth first scanning code from parallel gc
tonyp
parents:
1628
diff
changeset
|
192 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
|
1888
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
193 { "HandlePromotionFailure", |
|
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
194 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
|
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
195 { "MaxLiveObjectEvacuationRatio", |
|
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
196 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
| 242 | 197 { NULL, JDK_Version(0), JDK_Version(0) } |
| 198 }; | |
| 199 | |
| 200 // Returns true if the flag is obsolete and fits into the range specified | |
| 201 // for being ignored. In the case that the flag is ignored, the 'version' | |
| 202 // value is filled in with the version number when the flag became | |
| 203 // obsolete so that that value can be displayed to the user. | |
| 204 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
| 0 | 205 int i = 0; |
| 242 | 206 assert(version != NULL, "Must provide a version buffer"); |
| 207 while (obsolete_jvm_flags[i].name != NULL) { | |
| 208 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
| 0 | 209 // <flag>=xxx form |
| 210 // [-|+]<flag> form | |
| 242 | 211 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
| 0 | 212 ((s[0] == '+' || s[0] == '-') && |
| 242 | 213 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
| 214 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
| 215 *version = flag_status.obsoleted_in; | |
| 216 return true; | |
| 217 } | |
| 0 | 218 } |
| 219 i++; | |
| 220 } | |
| 221 return false; | |
| 222 } | |
| 223 | |
| 224 // Constructs the system class path (aka boot class path) from the following | |
| 225 // components, in order: | |
| 226 // | |
| 227 // prefix // from -Xbootclasspath/p:... | |
| 228 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
| 229 // base // from os::get_system_properties() or -Xbootclasspath= | |
| 230 // suffix // from -Xbootclasspath/a:... | |
| 231 // | |
| 232 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
| 233 // directories are added to the sysclasspath just before the base. | |
| 234 // | |
| 235 // This could be AllStatic, but it isn't needed after argument processing is | |
| 236 // complete. | |
| 237 class SysClassPath: public StackObj { | |
| 238 public: | |
| 239 SysClassPath(const char* base); | |
| 240 ~SysClassPath(); | |
| 241 | |
| 242 inline void set_base(const char* base); | |
| 243 inline void add_prefix(const char* prefix); | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
244 inline void add_suffix_to_prefix(const char* suffix); |
| 0 | 245 inline void add_suffix(const char* suffix); |
| 246 inline void reset_path(const char* base); | |
| 247 | |
| 248 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
| 249 // property. Must be called after all command-line arguments have been | |
| 250 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
| 251 // combined_path(). | |
| 252 void expand_endorsed(); | |
| 253 | |
| 254 inline const char* get_base() const { return _items[_scp_base]; } | |
| 255 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
| 256 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
| 257 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
| 258 | |
| 259 // Combine all the components into a single c-heap-allocated string; caller | |
| 260 // must free the string if/when no longer needed. | |
| 261 char* combined_path(); | |
| 262 | |
| 263 private: | |
| 264 // Utility routines. | |
| 265 static char* add_to_path(const char* path, const char* str, bool prepend); | |
| 266 static char* add_jars_to_path(char* path, const char* directory); | |
| 267 | |
| 268 inline void reset_item_at(int index); | |
| 269 | |
| 270 // Array indices for the items that make up the sysclasspath. All except the | |
| 271 // base are allocated in the C heap and freed by this class. | |
| 272 enum { | |
| 273 _scp_prefix, // from -Xbootclasspath/p:... | |
| 274 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
| 275 _scp_base, // the default sysclasspath | |
| 276 _scp_suffix, // from -Xbootclasspath/a:... | |
| 277 _scp_nitems // the number of items, must be last. | |
| 278 }; | |
| 279 | |
| 280 const char* _items[_scp_nitems]; | |
| 281 DEBUG_ONLY(bool _expansion_done;) | |
| 282 }; | |
| 283 | |
| 284 SysClassPath::SysClassPath(const char* base) { | |
| 285 memset(_items, 0, sizeof(_items)); | |
| 286 _items[_scp_base] = base; | |
| 287 DEBUG_ONLY(_expansion_done = false;) | |
| 288 } | |
| 289 | |
| 290 SysClassPath::~SysClassPath() { | |
| 291 // Free everything except the base. | |
| 292 for (int i = 0; i < _scp_nitems; ++i) { | |
| 293 if (i != _scp_base) reset_item_at(i); | |
| 294 } | |
| 295 DEBUG_ONLY(_expansion_done = false;) | |
| 296 } | |
| 297 | |
| 298 inline void SysClassPath::set_base(const char* base) { | |
| 299 _items[_scp_base] = base; | |
| 300 } | |
| 301 | |
| 302 inline void SysClassPath::add_prefix(const char* prefix) { | |
| 303 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
| 304 } | |
| 305 | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
306 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
307 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
308 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
309 |
| 0 | 310 inline void SysClassPath::add_suffix(const char* suffix) { |
| 311 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
| 312 } | |
| 313 | |
| 314 inline void SysClassPath::reset_item_at(int index) { | |
| 315 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
| 316 if (_items[index] != NULL) { | |
| 317 FREE_C_HEAP_ARRAY(char, _items[index]); | |
| 318 _items[index] = NULL; | |
| 319 } | |
| 320 } | |
| 321 | |
| 322 inline void SysClassPath::reset_path(const char* base) { | |
| 323 // Clear the prefix and suffix. | |
| 324 reset_item_at(_scp_prefix); | |
| 325 reset_item_at(_scp_suffix); | |
| 326 set_base(base); | |
| 327 } | |
| 328 | |
| 329 //------------------------------------------------------------------------------ | |
| 330 | |
| 331 void SysClassPath::expand_endorsed() { | |
| 332 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
| 333 | |
| 334 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
| 335 if (path == NULL) { | |
| 336 path = Arguments::get_endorsed_dir(); | |
| 337 assert(path != NULL, "no default for java.endorsed.dirs"); | |
| 338 } | |
| 339 | |
| 340 char* expanded_path = NULL; | |
| 341 const char separator = *os::path_separator(); | |
| 342 const char* const end = path + strlen(path); | |
| 343 while (path < end) { | |
| 344 const char* tmp_end = strchr(path, separator); | |
| 345 if (tmp_end == NULL) { | |
| 346 expanded_path = add_jars_to_path(expanded_path, path); | |
| 347 path = end; | |
| 348 } else { | |
| 349 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1); | |
| 350 memcpy(dirpath, path, tmp_end - path); | |
| 351 dirpath[tmp_end - path] = '\0'; | |
| 352 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
| 353 FREE_C_HEAP_ARRAY(char, dirpath); | |
| 354 path = tmp_end + 1; | |
| 355 } | |
| 356 } | |
| 357 _items[_scp_endorsed] = expanded_path; | |
| 358 DEBUG_ONLY(_expansion_done = true;) | |
| 359 } | |
| 360 | |
| 361 // Combine the bootclasspath elements, some of which may be null, into a single | |
| 362 // c-heap-allocated string. | |
| 363 char* SysClassPath::combined_path() { | |
| 364 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
| 365 assert(_expansion_done, "must call expand_endorsed() first."); | |
| 366 | |
| 367 size_t lengths[_scp_nitems]; | |
| 368 size_t total_len = 0; | |
| 369 | |
| 370 const char separator = *os::path_separator(); | |
| 371 | |
| 372 // Get the lengths. | |
| 373 int i; | |
| 374 for (i = 0; i < _scp_nitems; ++i) { | |
| 375 if (_items[i] != NULL) { | |
| 376 lengths[i] = strlen(_items[i]); | |
| 377 // Include space for the separator char (or a NULL for the last item). | |
| 378 total_len += lengths[i] + 1; | |
| 379 } | |
| 380 } | |
| 381 assert(total_len > 0, "empty sysclasspath not allowed"); | |
| 382 | |
| 383 // Copy the _items to a single string. | |
| 384 char* cp = NEW_C_HEAP_ARRAY(char, total_len); | |
| 385 char* cp_tmp = cp; | |
| 386 for (i = 0; i < _scp_nitems; ++i) { | |
| 387 if (_items[i] != NULL) { | |
| 388 memcpy(cp_tmp, _items[i], lengths[i]); | |
| 389 cp_tmp += lengths[i]; | |
| 390 *cp_tmp++ = separator; | |
| 391 } | |
| 392 } | |
| 393 *--cp_tmp = '\0'; // Replace the extra separator. | |
| 394 return cp; | |
| 395 } | |
| 396 | |
| 397 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 398 char* | |
| 399 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
| 400 char *cp; | |
| 401 | |
| 402 assert(str != NULL, "just checking"); | |
| 403 if (path == NULL) { | |
| 404 size_t len = strlen(str) + 1; | |
| 405 cp = NEW_C_HEAP_ARRAY(char, len); | |
| 406 memcpy(cp, str, len); // copy the trailing null | |
| 407 } else { | |
| 408 const char separator = *os::path_separator(); | |
| 409 size_t old_len = strlen(path); | |
| 410 size_t str_len = strlen(str); | |
| 411 size_t len = old_len + str_len + 2; | |
| 412 | |
| 413 if (prepend) { | |
| 414 cp = NEW_C_HEAP_ARRAY(char, len); | |
| 415 char* cp_tmp = cp; | |
| 416 memcpy(cp_tmp, str, str_len); | |
| 417 cp_tmp += str_len; | |
| 418 *cp_tmp = separator; | |
| 419 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
| 420 FREE_C_HEAP_ARRAY(char, path); | |
| 421 } else { | |
| 422 cp = REALLOC_C_HEAP_ARRAY(char, path, len); | |
| 423 char* cp_tmp = cp + old_len; | |
| 424 *cp_tmp = separator; | |
| 425 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
| 426 } | |
| 427 } | |
| 428 return cp; | |
| 429 } | |
| 430 | |
| 431 // Scan the directory and append any jar or zip files found to path. | |
| 432 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 433 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
| 434 DIR* dir = os::opendir(directory); | |
| 435 if (dir == NULL) return path; | |
| 436 | |
| 437 char dir_sep[2] = { '\0', '\0' }; | |
| 438 size_t directory_len = strlen(directory); | |
| 439 const char fileSep = *os::file_separator(); | |
| 440 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
| 441 | |
| 442 /* Scan the directory for jars/zips, appending them to path. */ | |
| 443 struct dirent *entry; | |
| 444 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory)); | |
| 445 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { | |
| 446 const char* name = entry->d_name; | |
| 447 const char* ext = name + strlen(name) - 4; | |
| 448 bool isJarOrZip = ext > name && | |
| 449 (os::file_name_strcmp(ext, ".jar") == 0 || | |
| 450 os::file_name_strcmp(ext, ".zip") == 0); | |
| 451 if (isJarOrZip) { | |
| 452 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name)); | |
| 453 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); | |
| 454 path = add_to_path(path, jarpath, false); | |
| 455 FREE_C_HEAP_ARRAY(char, jarpath); | |
| 456 } | |
| 457 } | |
| 458 FREE_C_HEAP_ARRAY(char, dbuf); | |
| 459 os::closedir(dir); | |
| 460 return path; | |
| 461 } | |
| 462 | |
| 463 // Parses a memory size specification string. | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
464 static bool atomull(const char *s, julong* result) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
465 julong n = 0; |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
466 int args_read = sscanf(s, os::julong_format_specifier(), &n); |
| 0 | 467 if (args_read != 1) { |
| 468 return false; | |
| 469 } | |
| 470 while (*s != '\0' && isdigit(*s)) { | |
| 471 s++; | |
| 472 } | |
| 473 // 4705540: illegal if more characters are found after the first non-digit | |
| 474 if (strlen(s) > 1) { | |
| 475 return false; | |
| 476 } | |
| 477 switch (*s) { | |
| 478 case 'T': case 't': | |
| 479 *result = n * G * K; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
480 // Check for overflow. |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
481 if (*result/((julong)G * K) != n) return false; |
| 0 | 482 return true; |
| 483 case 'G': case 'g': | |
| 484 *result = n * G; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
485 if (*result/G != n) return false; |
| 0 | 486 return true; |
| 487 case 'M': case 'm': | |
| 488 *result = n * M; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
489 if (*result/M != n) return false; |
| 0 | 490 return true; |
| 491 case 'K': case 'k': | |
| 492 *result = n * K; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
493 if (*result/K != n) return false; |
| 0 | 494 return true; |
| 495 case '\0': | |
| 496 *result = n; | |
| 497 return true; | |
| 498 default: | |
| 499 return false; | |
| 500 } | |
| 501 } | |
| 502 | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
503 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
| 0 | 504 if (size < min_size) return arg_too_small; |
| 505 // Check that size will fit in a size_t (only relevant on 32-bit) | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
506 if (size > max_uintx) return arg_too_big; |
| 0 | 507 return arg_in_range; |
| 508 } | |
| 509 | |
| 510 // Describe an argument out of range error | |
| 511 void Arguments::describe_range_error(ArgsRange errcode) { | |
| 512 switch(errcode) { | |
| 513 case arg_too_big: | |
| 514 jio_fprintf(defaultStream::error_stream(), | |
| 515 "The specified size exceeds the maximum " | |
| 516 "representable size.\n"); | |
| 517 break; | |
| 518 case arg_too_small: | |
| 519 case arg_unreadable: | |
| 520 case arg_in_range: | |
| 521 // do nothing for now | |
| 522 break; | |
| 523 default: | |
| 524 ShouldNotReachHere(); | |
| 525 } | |
| 526 } | |
| 527 | |
| 528 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
| 529 return CommandLineFlags::boolAtPut(name, &value, origin); | |
| 530 } | |
| 531 | |
| 532 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
| 533 double v; | |
| 534 if (sscanf(value, "%lf", &v) != 1) { | |
| 535 return false; | |
| 536 } | |
| 537 | |
| 538 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
| 539 return true; | |
| 540 } | |
| 541 return false; | |
| 542 } | |
| 543 | |
| 544 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
545 julong v; |
| 0 | 546 intx intx_v; |
| 547 bool is_neg = false; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
548 // Check the sign first since atomull() parses only unsigned values. |
| 0 | 549 if (*value == '-') { |
| 550 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
| 551 return false; | |
| 552 } | |
| 553 value++; | |
| 554 is_neg = true; | |
| 555 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
556 if (!atomull(value, &v)) { |
| 0 | 557 return false; |
| 558 } | |
| 559 intx_v = (intx) v; | |
| 560 if (is_neg) { | |
| 561 intx_v = -intx_v; | |
| 562 } | |
| 563 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
| 564 return true; | |
| 565 } | |
| 566 uintx uintx_v = (uintx) v; | |
| 567 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
| 568 return true; | |
| 569 } | |
| 1064 | 570 uint64_t uint64_t_v = (uint64_t) v; |
| 571 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
| 572 return true; | |
| 573 } | |
| 0 | 574 return false; |
| 575 } | |
| 576 | |
| 577 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
| 578 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
| 579 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
| 580 FREE_C_HEAP_ARRAY(char, value); | |
| 581 return true; | |
| 582 } | |
| 583 | |
| 584 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
| 585 const char* old_value = ""; | |
| 586 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
| 587 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
| 588 size_t new_len = strlen(new_value); | |
| 589 const char* value; | |
| 590 char* free_this_too = NULL; | |
| 591 if (old_len == 0) { | |
| 592 value = new_value; | |
| 593 } else if (new_len == 0) { | |
| 594 value = old_value; | |
| 595 } else { | |
| 596 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1); | |
| 597 // each new setting adds another LINE to the switch: | |
| 598 sprintf(buf, "%s\n%s", old_value, new_value); | |
| 599 value = buf; | |
| 600 free_this_too = buf; | |
| 601 } | |
| 602 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
| 603 // CommandLineFlags always returns a pointer that needs freeing. | |
| 604 FREE_C_HEAP_ARRAY(char, value); | |
| 605 if (free_this_too != NULL) { | |
| 606 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
| 607 FREE_C_HEAP_ARRAY(char, free_this_too); | |
| 608 } | |
| 609 return true; | |
| 610 } | |
| 611 | |
| 612 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
| 613 | |
| 614 // range of acceptable characters spelled out for portability reasons | |
| 615 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
| 616 #define BUFLEN 255 | |
| 617 char name[BUFLEN+1]; | |
| 618 char dummy; | |
| 619 | |
| 620 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 621 return set_bool_flag(name, false, origin); | |
| 622 } | |
| 623 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 624 return set_bool_flag(name, true, origin); | |
| 625 } | |
| 626 | |
| 627 char punct; | |
| 628 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
| 629 const char* value = strchr(arg, '=') + 1; | |
| 630 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 631 if (flag != NULL && flag->is_ccstr()) { | |
| 632 if (flag->ccstr_accumulates()) { | |
| 633 return append_to_string_flag(name, value, origin); | |
| 634 } else { | |
| 635 if (value[0] == '\0') { | |
| 636 value = NULL; | |
| 637 } | |
| 638 return set_string_flag(name, value, origin); | |
| 639 } | |
| 640 } | |
| 641 } | |
| 642 | |
| 643 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
| 644 const char* value = strchr(arg, '=') + 1; | |
| 645 // -XX:Foo:=xxx will reset the string flag to the given value. | |
| 646 if (value[0] == '\0') { | |
| 647 value = NULL; | |
| 648 } | |
| 649 return set_string_flag(name, value, origin); | |
| 650 } | |
| 651 | |
| 652 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
| 653 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
| 654 #define NUMBER_RANGE "[0123456789]" | |
| 655 char value[BUFLEN + 1]; | |
| 656 char value2[BUFLEN + 1]; | |
| 657 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
| 658 // Looks like a floating-point number -- try again with more lenient format string | |
| 659 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
| 660 return set_fp_numeric_flag(name, value, origin); | |
| 661 } | |
| 662 } | |
| 663 | |
| 664 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
| 665 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
| 666 return set_numeric_flag(name, value, origin); | |
| 667 } | |
| 668 | |
| 669 return false; | |
| 670 } | |
| 671 | |
| 672 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
| 673 assert(bldarray != NULL, "illegal argument"); | |
| 674 | |
| 675 if (arg == NULL) { | |
| 676 return; | |
| 677 } | |
| 678 | |
| 679 int index = *count; | |
| 680 | |
| 681 // expand the array and add arg to the last element | |
| 682 (*count)++; | |
| 683 if (*bldarray == NULL) { | |
| 684 *bldarray = NEW_C_HEAP_ARRAY(char*, *count); | |
| 685 } else { | |
| 686 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count); | |
| 687 } | |
| 688 (*bldarray)[index] = strdup(arg); | |
| 689 } | |
| 690 | |
| 691 void Arguments::build_jvm_args(const char* arg) { | |
| 692 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
| 693 } | |
| 694 | |
| 695 void Arguments::build_jvm_flags(const char* arg) { | |
| 696 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
| 697 } | |
| 698 | |
| 699 // utility function to return a string that concatenates all | |
| 700 // strings in a given char** array | |
| 701 const char* Arguments::build_resource_string(char** args, int count) { | |
| 702 if (args == NULL || count == 0) { | |
| 703 return NULL; | |
| 704 } | |
| 705 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
| 706 for (int i = 1; i < count; i++) { | |
| 707 length += strlen(args[i]) + 1; // add 1 for a space | |
| 708 } | |
| 709 char* s = NEW_RESOURCE_ARRAY(char, length); | |
| 710 strcpy(s, args[0]); | |
| 711 for (int j = 1; j < count; j++) { | |
| 712 strcat(s, " "); | |
| 713 strcat(s, args[j]); | |
| 714 } | |
| 715 return (const char*) s; | |
| 716 } | |
| 717 | |
| 718 void Arguments::print_on(outputStream* st) { | |
| 719 st->print_cr("VM Arguments:"); | |
| 720 if (num_jvm_flags() > 0) { | |
| 721 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
| 722 } | |
| 723 if (num_jvm_args() > 0) { | |
| 724 st->print("jvm_args: "); print_jvm_args_on(st); | |
| 725 } | |
| 726 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
| 727 st->print_cr("Launcher Type: %s", _sun_java_launcher); | |
| 728 } | |
| 729 | |
| 730 void Arguments::print_jvm_flags_on(outputStream* st) { | |
| 731 if (_num_jvm_flags > 0) { | |
| 732 for (int i=0; i < _num_jvm_flags; i++) { | |
| 733 st->print("%s ", _jvm_flags_array[i]); | |
| 734 } | |
| 735 st->print_cr(""); | |
| 736 } | |
| 737 } | |
| 738 | |
| 739 void Arguments::print_jvm_args_on(outputStream* st) { | |
| 740 if (_num_jvm_args > 0) { | |
| 741 for (int i=0; i < _num_jvm_args; i++) { | |
| 742 st->print("%s ", _jvm_args_array[i]); | |
| 743 } | |
| 744 st->print_cr(""); | |
| 745 } | |
| 746 } | |
| 747 | |
| 242 | 748 bool Arguments::process_argument(const char* arg, |
| 749 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
| 750 | |
| 751 JDK_Version since = JDK_Version(); | |
| 0 | 752 |
| 753 if (parse_argument(arg, origin)) { | |
| 754 // do nothing | |
| 242 | 755 } else if (is_newly_obsolete(arg, &since)) { |
| 756 enum { bufsize = 256 }; | |
| 757 char buffer[bufsize]; | |
| 758 since.to_string(buffer, bufsize); | |
| 0 | 759 jio_fprintf(defaultStream::error_stream(), |
| 242 | 760 "Warning: The flag %s has been EOL'd as of %s and will" |
| 761 " be ignored\n", arg, buffer); | |
| 0 | 762 } else { |
| 763 if (!ignore_unrecognized) { | |
| 764 jio_fprintf(defaultStream::error_stream(), | |
| 765 "Unrecognized VM option '%s'\n", arg); | |
| 766 // allow for commandline "commenting out" options like -XX:#+Verbose | |
| 767 if (strlen(arg) == 0 || arg[0] != '#') { | |
| 768 return false; | |
| 769 } | |
| 770 } | |
| 771 } | |
| 772 return true; | |
| 773 } | |
| 774 | |
| 775 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
| 776 FILE* stream = fopen(file_name, "rb"); | |
| 777 if (stream == NULL) { | |
| 778 if (should_exist) { | |
| 779 jio_fprintf(defaultStream::error_stream(), | |
| 780 "Could not open settings file %s\n", file_name); | |
| 781 return false; | |
| 782 } else { | |
| 783 return true; | |
| 784 } | |
| 785 } | |
| 786 | |
| 787 char token[1024]; | |
| 788 int pos = 0; | |
| 789 | |
| 790 bool in_white_space = true; | |
| 791 bool in_comment = false; | |
| 792 bool in_quote = false; | |
| 793 char quote_c = 0; | |
| 794 bool result = true; | |
| 795 | |
| 796 int c = getc(stream); | |
| 797 while(c != EOF) { | |
| 798 if (in_white_space) { | |
| 799 if (in_comment) { | |
| 800 if (c == '\n') in_comment = false; | |
| 801 } else { | |
| 802 if (c == '#') in_comment = true; | |
| 803 else if (!isspace(c)) { | |
| 804 in_white_space = false; | |
| 805 token[pos++] = c; | |
| 806 } | |
| 807 } | |
| 808 } else { | |
| 809 if (c == '\n' || (!in_quote && isspace(c))) { | |
| 810 // token ends at newline, or at unquoted whitespace | |
| 811 // this allows a way to include spaces in string-valued options | |
| 812 token[pos] = '\0'; | |
| 813 logOption(token); | |
| 814 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 815 build_jvm_flags(token); | |
| 816 pos = 0; | |
| 817 in_white_space = true; | |
| 818 in_quote = false; | |
| 819 } else if (!in_quote && (c == '\'' || c == '"')) { | |
| 820 in_quote = true; | |
| 821 quote_c = c; | |
| 822 } else if (in_quote && (c == quote_c)) { | |
| 823 in_quote = false; | |
| 824 } else { | |
| 825 token[pos++] = c; | |
| 826 } | |
| 827 } | |
| 828 c = getc(stream); | |
| 829 } | |
| 830 if (pos > 0) { | |
| 831 token[pos] = '\0'; | |
| 832 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 833 build_jvm_flags(token); | |
| 834 } | |
| 835 fclose(stream); | |
| 836 return result; | |
| 837 } | |
| 838 | |
| 839 //============================================================================================================= | |
| 840 // Parsing of properties (-D) | |
| 841 | |
| 842 const char* Arguments::get_property(const char* key) { | |
| 843 return PropertyList_get_value(system_properties(), key); | |
| 844 } | |
| 845 | |
| 846 bool Arguments::add_property(const char* prop) { | |
| 847 const char* eq = strchr(prop, '='); | |
| 848 char* key; | |
| 849 // ns must be static--its address may be stored in a SystemProperty object. | |
| 850 const static char ns[1] = {0}; | |
| 851 char* value = (char *)ns; | |
| 852 | |
| 853 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
| 854 key = AllocateHeap(key_len + 1, "add_property"); | |
| 855 strncpy(key, prop, key_len); | |
| 856 key[key_len] = '\0'; | |
| 857 | |
| 858 if (eq != NULL) { | |
| 859 size_t value_len = strlen(prop) - key_len - 1; | |
| 860 value = AllocateHeap(value_len + 1, "add_property"); | |
| 861 strncpy(value, &prop[key_len + 1], value_len + 1); | |
| 862 } | |
| 863 | |
| 864 if (strcmp(key, "java.compiler") == 0) { | |
| 865 process_java_compiler_argument(value); | |
| 866 FreeHeap(key); | |
| 867 if (eq != NULL) { | |
| 868 FreeHeap(value); | |
| 869 } | |
| 870 return true; | |
| 691 | 871 } else if (strcmp(key, "sun.java.command") == 0) { |
| 0 | 872 _java_command = value; |
| 873 | |
| 874 // don't add this property to the properties exposed to the java application | |
| 875 FreeHeap(key); | |
| 876 return true; | |
| 691 | 877 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
| 0 | 878 // launcher.pid property is private and is processed |
| 879 // in process_sun_java_launcher_properties(); | |
| 880 // the sun.java.launcher property is passed on to the java application | |
| 881 FreeHeap(key); | |
| 882 if (eq != NULL) { | |
| 883 FreeHeap(value); | |
| 884 } | |
| 885 return true; | |
| 691 | 886 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 0 | 887 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 888 // its value without going through the property list or making a Java call. | |
| 889 _java_vendor_url_bug = value; | |
| 691 | 890 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 891 PropertyList_unique_add(&_system_properties, key, value, true); | |
| 892 return true; | |
| 0 | 893 } |
| 894 // Create new property and add at the end of the list | |
| 895 PropertyList_unique_add(&_system_properties, key, value); | |
| 896 return true; | |
| 897 } | |
| 898 | |
| 899 //=========================================================================================================== | |
| 900 // Setting int/mixed/comp mode flags | |
| 901 | |
| 902 void Arguments::set_mode_flags(Mode mode) { | |
| 903 // Set up default values for all flags. | |
| 904 // If you add a flag to any of the branches below, | |
| 905 // add a default value for it here. | |
| 906 set_java_compiler(false); | |
| 907 _mode = mode; | |
| 908 | |
| 909 // Ensure Agent_OnLoad has the correct initial values. | |
| 910 // This may not be the final mode; mode may change later in onload phase. | |
| 911 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
| 691 | 912 (char*)Abstract_VM_Version::vm_info_string(), false); |
| 0 | 913 |
| 914 UseInterpreter = true; | |
| 915 UseCompiler = true; | |
| 916 UseLoopCounter = true; | |
| 917 | |
| 918 // Default values may be platform/compiler dependent - | |
| 919 // use the saved values | |
| 920 ClipInlining = Arguments::_ClipInlining; | |
| 921 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
| 922 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
| 923 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
| 924 | |
| 925 // Change from defaults based on mode | |
| 926 switch (mode) { | |
| 927 default: | |
| 928 ShouldNotReachHere(); | |
| 929 break; | |
| 930 case _int: | |
| 931 UseCompiler = false; | |
| 932 UseLoopCounter = false; | |
| 933 AlwaysCompileLoopMethods = false; | |
| 934 UseOnStackReplacement = false; | |
| 935 break; | |
| 936 case _mixed: | |
| 937 // same as default | |
| 938 break; | |
| 939 case _comp: | |
| 940 UseInterpreter = false; | |
| 941 BackgroundCompilation = false; | |
| 942 ClipInlining = false; | |
| 943 break; | |
| 944 } | |
| 945 } | |
| 946 | |
| 947 // Conflict: required to use shared spaces (-Xshare:on), but | |
| 948 // incompatible command line options were chosen. | |
| 949 | |
| 950 static void no_shared_spaces() { | |
| 951 if (RequireSharedSpaces) { | |
| 952 jio_fprintf(defaultStream::error_stream(), | |
| 953 "Class data sharing is inconsistent with other specified options.\n"); | |
| 954 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
| 955 } else { | |
| 956 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 957 } | |
| 958 } | |
| 959 | |
| 1783 | 960 void Arguments::set_tiered_flags() { |
| 961 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { | |
| 962 FLAG_SET_DEFAULT(CompilationPolicyChoice, 2); | |
| 963 } | |
| 964 | |
| 965 if (CompilationPolicyChoice < 2) { | |
| 966 vm_exit_during_initialization( | |
| 967 "Incompatible compilation policy selected", NULL); | |
| 968 } | |
| 969 | |
| 970 #ifdef _LP64 | |
| 971 if (FLAG_IS_DEFAULT(UseCompressedOops) || FLAG_IS_ERGO(UseCompressedOops)) { | |
| 972 UseCompressedOops = false; | |
| 973 } | |
| 974 if (UseCompressedOops) { | |
| 975 vm_exit_during_initialization( | |
| 976 "Tiered compilation is not supported with compressed oops yet", NULL); | |
| 977 } | |
| 978 #endif | |
| 979 // Increase the code cache size - tiered compiles a lot more. | |
| 980 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { | |
| 981 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
| 982 } | |
| 983 } | |
| 984 | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
985 #ifndef KERNEL |
| 0 | 986 // If the user has chosen ParallelGCThreads > 0, we set UseParNewGC |
| 987 // if it's not explictly set or unset. If the user has chosen | |
| 988 // UseParNewGC and not explicitly set ParallelGCThreads we | |
| 989 // set it, unless this is a single cpu machine. | |
| 990 void Arguments::set_parnew_gc_flags() { | |
| 1064 | 991 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
992 "control point invariant"); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
993 assert(UseParNewGC, "Error"); |
| 0 | 994 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
995 // Turn off AdaptiveSizePolicy by default for parnew until it is |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
996 // complete. |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
997 if (FLAG_IS_DEFAULT(UseAdaptiveSizePolicy)) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
998 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
999 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1000 |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1001 if (ParallelGCThreads == 0) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1002 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1003 Abstract_VM_Version::parallel_worker_threads()); |
| 1064 | 1004 if (ParallelGCThreads == 1) { |
| 0 | 1005 FLAG_SET_DEFAULT(UseParNewGC, false); |
| 1064 | 1006 FLAG_SET_DEFAULT(ParallelGCThreads, 0); |
| 0 | 1007 } |
| 1008 } | |
| 1064 | 1009 if (UseParNewGC) { |
| 1010 // CDS doesn't work with ParNew yet | |
| 0 | 1011 no_shared_spaces(); |
| 1012 | |
| 695 | 1013 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
| 0 | 1014 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
| 1015 // we set them to 1024 and 1024. | |
| 1016 // See CR 6362902. | |
| 1017 if (FLAG_IS_DEFAULT(YoungPLABSize)) { | |
| 1018 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); | |
| 1019 } | |
| 1020 if (FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1021 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); | |
| 1022 } | |
| 1023 | |
| 1064 | 1024 // AlwaysTenure flag should make ParNew promote all at first collection. |
| 0 | 1025 // See CR 6362902. |
| 1026 if (AlwaysTenure) { | |
| 1027 FLAG_SET_CMDLINE(intx, MaxTenuringThreshold, 0); | |
| 1028 } | |
| 695 | 1029 // When using compressed oops, we use local overflow stacks, |
| 1030 // rather than using a global overflow list chained through | |
| 1031 // the klass word of the object's pre-image. | |
| 1032 if (UseCompressedOops && !ParGCUseLocalOverflow) { | |
| 1033 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { | |
| 1034 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); | |
| 1035 } | |
| 1036 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); | |
| 1037 } | |
| 1038 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); | |
| 0 | 1039 } |
| 1040 } | |
| 1041 | |
| 1042 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
| 1043 // sparc/solaris for certain applications, but would gain from | |
| 1044 // further optimization and tuning efforts, and would almost | |
| 1045 // certainly gain from analysis of platform and environment. | |
| 1046 void Arguments::set_cms_and_parnew_gc_flags() { | |
| 1064 | 1047 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1048 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1049 |
| 0 | 1050 // If we are using CMS, we prefer to UseParNewGC, |
| 1051 // unless explicitly forbidden. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1052 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1053 FLAG_SET_ERGO(bool, UseParNewGC, true); |
| 0 | 1054 } |
| 1055 | |
| 1056 // Turn off AdaptiveSizePolicy by default for cms until it is | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1057 // complete. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1058 if (FLAG_IS_DEFAULT(UseAdaptiveSizePolicy)) { |
| 0 | 1059 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); |
| 1060 } | |
| 1061 | |
| 1062 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
| 1063 // as needed. | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1064 if (UseParNewGC) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1065 set_parnew_gc_flags(); |
| 0 | 1066 } |
| 1067 | |
| 1068 // Now make adjustments for CMS | |
| 1069 size_t young_gen_per_worker; | |
| 1070 intx new_ratio; | |
| 1071 size_t min_new_default; | |
| 1072 intx tenuring_default; | |
| 1073 if (CMSUseOldDefaults) { // old defaults: "old" as of 6.0 | |
| 1074 if FLAG_IS_DEFAULT(CMSYoungGenPerWorker) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1075 FLAG_SET_ERGO(intx, CMSYoungGenPerWorker, 4*M); |
| 0 | 1076 } |
| 1077 young_gen_per_worker = 4*M; | |
| 1078 new_ratio = (intx)15; | |
| 1079 min_new_default = 4*M; | |
| 1080 tenuring_default = (intx)0; | |
| 1081 } else { // new defaults: "new" as of 6.0 | |
| 1082 young_gen_per_worker = CMSYoungGenPerWorker; | |
| 1083 new_ratio = (intx)7; | |
| 1084 min_new_default = 16*M; | |
| 1085 tenuring_default = (intx)4; | |
| 1086 } | |
| 1087 | |
| 1088 // Preferred young gen size for "short" pauses | |
| 1089 const uintx parallel_gc_threads = | |
| 1090 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
| 1091 const size_t preferred_max_new_size_unaligned = | |
| 1092 ScaleForWordSize(young_gen_per_worker * parallel_gc_threads); | |
| 1093 const size_t preferred_max_new_size = | |
| 1094 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); | |
| 1095 | |
| 1096 // Unless explicitly requested otherwise, size young gen | |
| 1097 // for "short" pauses ~ 4M*ParallelGCThreads | |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1098 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1099 // If either MaxNewSize or NewRatio is set on the command line, |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1100 // assume the user is trying to set the size of the young gen. |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1101 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1102 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1103 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1104 // Set MaxNewSize to our calculated preferred_max_new_size unless |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1105 // NewSize was set on the command line and it is larger than |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1106 // preferred_max_new_size. |
| 0 | 1107 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1108 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
| 0 | 1109 } else { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1110 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
| 0 | 1111 } |
| 1064 | 1112 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1113 // Too early to use gclog_or_tty |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1114 tty->print_cr("Ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1115 } |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1116 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1117 // Unless explicitly requested otherwise, prefer a large |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1118 // Old to Young gen size so as to shift the collection load |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1119 // to the old generation concurrent collector |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1120 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1121 // If this is only guarded by FLAG_IS_DEFAULT(NewRatio) |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1122 // then NewSize and OldSize may be calculated. That would |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1123 // generally lead to some differences with ParNewGC for which |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1124 // there was no obvious reason. Also limit to the case where |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1125 // MaxNewSize has not been set. |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1126 |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1127 FLAG_SET_ERGO(intx, NewRatio, MAX2(NewRatio, new_ratio)); |
| 0 | 1128 |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1129 // Code along this path potentially sets NewSize and OldSize |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1130 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1131 // Calculate the desired minimum size of the young gen but if |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1132 // NewSize has been set on the command line, use it here since |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1133 // it should be the final value. |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1134 size_t min_new; |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1135 if (FLAG_IS_DEFAULT(NewSize)) { |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1136 min_new = align_size_up(ScaleForWordSize(min_new_default), |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1137 os::vm_page_size()); |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1138 } else { |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1139 min_new = NewSize; |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1140 } |
| 1064 | 1141 size_t prev_initial_size = InitialHeapSize; |
| 1142 if (prev_initial_size != 0 && prev_initial_size < min_new + OldSize) { | |
| 1143 FLAG_SET_ERGO(uintx, InitialHeapSize, min_new + OldSize); | |
| 0 | 1144 // Currently minimum size and the initial heap sizes are the same. |
| 1064 | 1145 set_min_heap_size(InitialHeapSize); |
| 0 | 1146 if (PrintGCDetails && Verbose) { |
| 1147 warning("Initial heap size increased to " SIZE_FORMAT " M from " | |
| 1148 SIZE_FORMAT " M; use -XX:NewSize=... for finer control.", | |
| 1064 | 1149 InitialHeapSize/M, prev_initial_size/M); |
| 0 | 1150 } |
| 1151 } | |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1152 |
| 0 | 1153 // MaxHeapSize is aligned down in collectorPolicy |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1154 size_t max_heap = |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1155 align_size_down(MaxHeapSize, |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1156 CardTableRS::ct_max_alignment_constraint()); |
| 0 | 1157 |
| 1064 | 1158 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1159 // Too early to use gclog_or_tty |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1160 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1161 " initial_heap_size: " SIZE_FORMAT |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1162 " max_heap: " SIZE_FORMAT, |
| 1064 | 1163 min_heap_size(), InitialHeapSize, max_heap); |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1164 } |
| 0 | 1165 if (max_heap > min_new) { |
| 1166 // Unless explicitly requested otherwise, make young gen | |
| 1167 // at least min_new, and at most preferred_max_new_size. | |
| 1168 if (FLAG_IS_DEFAULT(NewSize)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1169 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1170 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
| 1064 | 1171 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1172 // Too early to use gclog_or_tty |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1173 tty->print_cr("Ergo set NewSize: " SIZE_FORMAT, NewSize); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1174 } |
| 0 | 1175 } |
| 1176 // Unless explicitly requested otherwise, size old gen | |
| 1177 // so that it's at least 3X of NewSize to begin with; | |
| 1178 // later NewRatio will decide how it grows; see above. | |
| 1179 if (FLAG_IS_DEFAULT(OldSize)) { | |
| 1180 if (max_heap > NewSize) { | |
| 1064 | 1181 FLAG_SET_ERGO(uintx, OldSize, MIN2(3*NewSize, max_heap - NewSize)); |
| 1182 if (PrintGCDetails && Verbose) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1183 // Too early to use gclog_or_tty |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1184 tty->print_cr("Ergo set OldSize: " SIZE_FORMAT, OldSize); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1185 } |
| 0 | 1186 } |
| 1187 } | |
| 1188 } | |
| 1189 } | |
| 1190 // Unless explicitly requested otherwise, definitely | |
| 1191 // promote all objects surviving "tenuring_default" scavenges. | |
| 1192 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
| 1193 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1194 FLAG_SET_ERGO(intx, MaxTenuringThreshold, tenuring_default); |
| 0 | 1195 } |
| 1196 // If we decided above (or user explicitly requested) | |
| 1197 // `promote all' (via MaxTenuringThreshold := 0), | |
| 1198 // prefer minuscule survivor spaces so as not to waste | |
| 1199 // space for (non-existent) survivors | |
| 1200 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1201 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
| 0 | 1202 } |
| 1203 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
| 1204 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
| 1205 // This is done in order to make ParNew+CMS configuration to work | |
| 1206 // with YoungPLABSize and OldPLABSize options. | |
| 1207 // See CR 6362902. | |
| 1208 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1209 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1210 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1211 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1212 // the value (either from the command line or ergonomics) of |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1213 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1214 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1215 } else { |
| 0 | 1216 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
| 1217 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
| 1218 // we'll let it to take precedence. | |
| 1219 jio_fprintf(defaultStream::error_stream(), | |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1220 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1221 " options are specified for the CMS collector." |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1222 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
| 0 | 1223 } |
| 1224 } | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1225 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1226 // OldPLAB sizing manually turned off: Use a larger default setting, |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1227 // unless it was manually specified. This is because a too-low value |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1228 // will slow down scavenges. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1229 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1230 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1231 } |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1232 } |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1233 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1234 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1235 // If either of the static initialization defaults have changed, note this |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1236 // modification. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1237 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1238 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1239 } |
| 1284 | 1240 if (PrintGCDetails && Verbose) { |
| 1241 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1242 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1243 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1244 } | |
| 0 | 1245 } |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1246 #endif // KERNEL |
| 0 | 1247 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1248 void set_object_alignment() { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1249 // Object alignment. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1250 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1251 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1252 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1253 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1254 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1255 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1256 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1257 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1258 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1259 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1260 // Oop encoding heap max |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1261 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1262 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1263 #ifndef KERNEL |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1264 // Set CMS global values |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1265 CompactibleFreeListSpace::set_cms_values(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1266 #endif // KERNEL |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1267 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1268 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1269 bool verify_object_alignment() { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1270 // Object alignment. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1271 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1272 jio_fprintf(defaultStream::error_stream(), |
|
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1273 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1274 (int)ObjectAlignmentInBytes); |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1275 return false; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1276 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1277 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1278 jio_fprintf(defaultStream::error_stream(), |
|
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1279 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1280 (int)ObjectAlignmentInBytes, BytesPerLong); |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1281 return false; |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1282 } |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1283 // It does not make sense to have big object alignment |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1284 // since a space lost due to alignment will be greater |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1285 // then a saved space from compressed oops. |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1286 if ((int)ObjectAlignmentInBytes > 256) { |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1287 jio_fprintf(defaultStream::error_stream(), |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1288 "error: ObjectAlignmentInBytes=%d must not be greater then 256\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1289 (int)ObjectAlignmentInBytes); |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1290 return false; |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1291 } |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1292 // In case page size is very small. |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1293 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1294 jio_fprintf(defaultStream::error_stream(), |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1295 "error: ObjectAlignmentInBytes=%d must be less then page size %d\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1296 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1297 return false; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1298 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1299 return true; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1300 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1301 |
|
135
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1302 inline uintx max_heap_for_compressed_oops() { |
|
1795
a8b66e00933b
6984368: Large default heap size does not allow to use zero based compressed oops
kvn
parents:
1783
diff
changeset
|
1303 // Heap should be above HeapBaseMinAddress to get zero based compressed oops. |
|
a8b66e00933b
6984368: Large default heap size does not allow to use zero based compressed oops
kvn
parents:
1783
diff
changeset
|
1304 LP64_ONLY(return OopEncodingHeapMax - MaxPermSize - os::vm_page_size() - HeapBaseMinAddress); |
| 1064 | 1305 NOT_LP64(ShouldNotReachHere(); return 0); |
|
135
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1306 } |
|
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1307 |
| 0 | 1308 bool Arguments::should_auto_select_low_pause_collector() { |
| 1309 if (UseAutoGCSelectPolicy && | |
| 1310 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
| 1311 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
| 1312 if (PrintGCDetails) { | |
| 1313 // Cannot use gclog_or_tty yet. | |
| 1314 tty->print_cr("Automatic selection of the low pause collector" | |
| 1315 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
| 1316 } | |
| 1317 return true; | |
| 1318 } | |
| 1319 return false; | |
| 1320 } | |
| 1321 | |
| 1322 void Arguments::set_ergonomics_flags() { | |
| 1323 // Parallel GC is not compatible with sharing. If one specifies | |
| 1064 | 1324 // that they want sharing explicitly, do not set ergonomics flags. |
| 0 | 1325 if (DumpSharedSpaces || ForceSharedSpaces) { |
| 1326 return; | |
| 1327 } | |
| 1328 | |
| 1329 if (os::is_server_class_machine() && !force_client_mode ) { | |
| 1330 // If no other collector is requested explicitly, | |
| 1331 // let the VM select the collector based on | |
| 1332 // machine class and automatic selection policy. | |
| 1333 if (!UseSerialGC && | |
| 1334 !UseConcMarkSweepGC && | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1335 !UseG1GC && |
| 0 | 1336 !UseParNewGC && |
| 1337 !DumpSharedSpaces && | |
| 1338 FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1339 if (should_auto_select_low_pause_collector()) { | |
| 1340 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
| 1341 } else { | |
| 1342 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
| 1343 } | |
| 1344 no_shared_spaces(); | |
| 1345 } | |
| 1346 } | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1347 |
| 1010 | 1348 #ifndef ZERO |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1349 #ifdef _LP64 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1350 // Check that UseCompressedOops can be set with the max heap size allocated |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1351 // by ergonomics. |
| 187 | 1352 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
| 1783 | 1353 #if !defined(COMPILER1) || defined(TIERED) |
| 932 | 1354 if (FLAG_IS_DEFAULT(UseCompressedOops) && !UseG1GC) { |
| 1355 FLAG_SET_ERGO(bool, UseCompressedOops, true); | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1356 } |
| 1060 | 1357 #endif |
|
325
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1358 #ifdef _WIN64 |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1359 if (UseLargePages && UseCompressedOops) { |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1360 // Cannot allocate guard pages for implicit checks in indexed addressing |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1361 // mode, when large pages are specified on windows. |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1362 // This flag could be switched ON if narrow oop base address is set to 0, |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1363 // see code in Universe::initialize_heap(). |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1364 Universe::set_narrow_oop_use_implicit_null_checks(false); |
|
325
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1365 } |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1366 #endif // _WIN64 |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1367 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1368 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 344 | 1369 warning("Max heap size too large for Compressed Oops"); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1370 FLAG_SET_DEFAULT(UseCompressedOops, false); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1371 } |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1372 } |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1373 // Also checks that certain machines are slower with compressed oops |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1374 // in vm_version initialization code. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1375 #endif // _LP64 |
| 1010 | 1376 #endif // !ZERO |
| 0 | 1377 } |
| 1378 | |
| 1379 void Arguments::set_parallel_gc_flags() { | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1380 assert(UseParallelGC || UseParallelOldGC, "Error"); |
| 0 | 1381 // If parallel old was requested, automatically enable parallel scavenge. |
| 1382 if (UseParallelOldGC && !UseParallelGC && FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1383 FLAG_SET_DEFAULT(UseParallelGC, true); | |
| 1384 } | |
| 1385 | |
| 1386 // If no heap maximum was requested explicitly, use some reasonable fraction | |
| 1387 // of the physical memory, up to a maximum of 1GB. | |
| 1388 if (UseParallelGC) { | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1389 FLAG_SET_ERGO(uintx, ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1390 Abstract_VM_Version::parallel_worker_threads()); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1391 |
| 0 | 1392 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
| 1393 // SurvivorRatio has been set, reset their default values to SurvivorRatio + | |
| 1394 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. | |
| 1395 // See CR 6362902 for details. | |
| 1396 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 1397 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { | |
| 1398 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); | |
| 1399 } | |
| 1400 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { | |
| 1401 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); | |
| 1402 } | |
| 1403 } | |
| 1404 | |
| 1405 if (UseParallelOldGC) { | |
| 1406 // Par compact uses lower default values since they are treated as | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1407 // minimums. These are different defaults because of the different |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1408 // interpretation and are not ergonomically set. |
| 0 | 1409 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1410 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
| 0 | 1411 } |
| 1412 if (FLAG_IS_DEFAULT(PermMarkSweepDeadRatio)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1413 FLAG_SET_DEFAULT(PermMarkSweepDeadRatio, 5); |
| 0 | 1414 } |
| 1415 } | |
| 1416 } | |
| 1417 } | |
| 1418 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1419 void Arguments::set_g1_gc_flags() { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1420 assert(UseG1GC, "Error"); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1421 #ifdef COMPILER1 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1422 FastTLABRefill = false; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1423 #endif |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1424 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1425 Abstract_VM_Version::parallel_worker_threads()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1426 if (ParallelGCThreads == 0) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1427 FLAG_SET_DEFAULT(ParallelGCThreads, |
| 751 | 1428 Abstract_VM_Version::parallel_worker_threads()); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1429 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1430 no_shared_spaces(); |
| 751 | 1431 |
| 1284 | 1432 if (FLAG_IS_DEFAULT(MarkStackSize)) { |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1284
diff
changeset
|
1433 FLAG_SET_DEFAULT(MarkStackSize, 128 * TASKQUEUE_SIZE); |
| 1284 | 1434 } |
| 1435 if (PrintGCDetails && Verbose) { | |
| 1436 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1437 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1438 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1439 } | |
| 1356 | 1440 |
| 1441 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
| 1442 // In G1, we want the default GC overhead goal to be higher than | |
| 1443 // say in PS. So we set it here to 10%. Otherwise the heap might | |
| 1444 // be expanded more aggressively than we would like it to. In | |
| 1445 // fact, even 10% seems to not be high enough in some cases | |
| 1446 // (especially small GC stress tests that the main thing they do | |
| 1447 // is allocation). We might consider increase it further. | |
| 1448 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
| 1449 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1450 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1451 |
| 1064 | 1452 void Arguments::set_heap_size() { |
| 1453 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
| 1454 // Deprecated flag | |
| 1455 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
| 1456 } | |
| 1457 | |
| 1458 const julong phys_mem = | |
| 1459 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
| 1460 : (julong)MaxRAM; | |
| 1461 | |
| 1462 // If the maximum heap size has not been set with -Xmx, | |
| 1463 // then set it as fraction of the size of physical memory, | |
| 1464 // respecting the maximum and minimum sizes of the heap. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1465 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
| 1064 | 1466 julong reasonable_max = phys_mem / MaxRAMFraction; |
| 1467 | |
| 1468 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
| 1469 // Small physical memory, so use a minimum fraction of it for the heap | |
| 1470 reasonable_max = phys_mem / MinRAMFraction; | |
| 1471 } else { | |
| 1472 // Not-small physical memory, so require a heap at least | |
| 1473 // as large as MaxHeapSize | |
| 1474 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
| 1475 } | |
| 1476 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
| 1477 // Limit the heap size to ErgoHeapSizeLimit | |
| 1478 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1479 } |
| 1064 | 1480 if (UseCompressedOops) { |
| 1481 // Limit the heap size to the maximum possible when using compressed oops | |
| 1482 reasonable_max = MIN2(reasonable_max, (julong)max_heap_for_compressed_oops()); | |
| 1483 } | |
| 1484 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
| 1485 | |
| 1486 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
| 1487 // An initial heap size was specified on the command line, | |
| 1488 // so be sure that the maximum size is consistent. Done | |
| 1489 // after call to allocatable_physical_memory because that | |
| 1490 // method might reduce the allocation size. | |
| 1491 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
| 1492 } | |
| 1493 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1494 if (PrintGCDetails && Verbose) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1495 // Cannot use gclog_or_tty yet. |
| 1064 | 1496 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1497 } |
| 1064 | 1498 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
| 1499 } | |
| 1500 | |
| 1501 // If the initial_heap_size has not been set with InitialHeapSize | |
| 1502 // or -Xms, then set it as fraction of the size of physical memory, | |
| 1503 // respecting the maximum and minimum sizes of the heap. | |
| 1504 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1505 julong reasonable_minimum = (julong)(OldSize + NewSize); |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1506 |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1507 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1508 |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1509 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1510 |
| 1064 | 1511 julong reasonable_initial = phys_mem / InitialRAMFraction; |
| 1512 | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1513 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
| 1064 | 1514 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1515 | |
| 1516 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
| 1517 | |
| 1518 if (PrintGCDetails && Verbose) { | |
| 1519 // Cannot use gclog_or_tty yet. | |
| 1520 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1521 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1522 } |
| 1064 | 1523 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1524 set_min_heap_size((uintx)reasonable_minimum); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1525 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1526 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1527 |
| 0 | 1528 // This must be called after ergonomics because we want bytecode rewriting |
| 1529 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
| 1530 void Arguments::set_bytecode_flags() { | |
| 1531 // Better not attempt to store into a read-only space. | |
| 1532 if (UseSharedSpaces) { | |
| 1533 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
| 1534 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1535 } | |
| 1536 | |
| 1537 if (!RewriteBytecodes) { | |
| 1538 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1539 } | |
| 1540 } | |
| 1541 | |
| 1542 // Aggressive optimization flags -XX:+AggressiveOpts | |
| 1543 void Arguments::set_aggressive_opts_flags() { | |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1544 #ifdef COMPILER2 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1545 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1546 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1547 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1548 } |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1549 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1550 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1551 } |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1552 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1553 // Feed the cache size setting into the JDK |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1554 char buffer[1024]; |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1555 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1556 add_property(buffer); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1557 } |
| 65 | 1558 if (AggressiveOpts && FLAG_IS_DEFAULT(DoEscapeAnalysis)) { |
| 1559 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
| 1560 } | |
|
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1561 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1562 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1563 } |
| 1622 | 1564 if (AggressiveOpts && FLAG_IS_DEFAULT(OptimizeStringConcat)) { |
| 1565 FLAG_SET_DEFAULT(OptimizeStringConcat, true); | |
| 1566 } | |
| 1763 | 1567 if (AggressiveOpts && FLAG_IS_DEFAULT(OptimizeFill)) { |
| 1568 FLAG_SET_DEFAULT(OptimizeFill, true); | |
| 1569 } | |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1570 #endif |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1571 |
| 0 | 1572 if (AggressiveOpts) { |
| 61 | 1573 // Sample flag setting code |
| 1574 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
| 1575 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
| 1576 // } | |
| 0 | 1577 } |
| 1578 } | |
| 1579 | |
| 1580 //=========================================================================================================== | |
| 1581 // Parsing of java.compiler property | |
| 1582 | |
| 1583 void Arguments::process_java_compiler_argument(char* arg) { | |
| 1584 // For backwards compatibility, Djava.compiler=NONE or "" | |
| 1585 // causes us to switch to -Xint mode UNLESS -Xdebug | |
| 1586 // is also specified. | |
| 1587 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
| 1588 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
| 1589 } | |
| 1590 } | |
| 1591 | |
| 1592 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
| 1593 _sun_java_launcher = strdup(launcher); | |
| 1594 } | |
| 1595 | |
| 1596 bool Arguments::created_by_java_launcher() { | |
| 1597 assert(_sun_java_launcher != NULL, "property must have value"); | |
| 1598 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
| 1599 } | |
| 1600 | |
| 1601 //=========================================================================================================== | |
| 1602 // Parsing of main arguments | |
| 1603 | |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1604 bool Arguments::verify_interval(uintx val, uintx min, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1605 uintx max, const char* name) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1606 // Returns true iff value is in the inclusive interval [min..max] |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1607 // false, otherwise. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1608 if (val >= min && val <= max) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1609 return true; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1610 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1611 jio_fprintf(defaultStream::error_stream(), |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1612 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1613 " and " UINTX_FORMAT "\n", |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1614 name, val, min, max); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1615 return false; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1616 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1617 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1618 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1619 // Returns true if given value is greater than specified min threshold |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1620 // false, otherwise. |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1621 if (val >= min ) { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1622 return true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1623 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1624 jio_fprintf(defaultStream::error_stream(), |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1625 "%s of " INTX_FORMAT " is invalid; must be greater than " INTX_FORMAT "\n", |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1626 name, val, min); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1627 return false; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1628 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1629 |
| 0 | 1630 bool Arguments::verify_percentage(uintx value, const char* name) { |
| 1631 if (value <= 100) { | |
| 1632 return true; | |
| 1633 } | |
| 1634 jio_fprintf(defaultStream::error_stream(), | |
| 1635 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
| 1636 name, value); | |
| 1637 return false; | |
| 1638 } | |
| 1639 | |
| 1064 | 1640 static void force_serial_gc() { |
| 0 | 1641 FLAG_SET_DEFAULT(UseSerialGC, true); |
| 1642 FLAG_SET_DEFAULT(UseParNewGC, false); | |
| 1643 FLAG_SET_DEFAULT(UseConcMarkSweepGC, false); | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1644 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
| 0 | 1645 FLAG_SET_DEFAULT(UseParallelGC, false); |
| 1646 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1647 FLAG_SET_DEFAULT(UseG1GC, false); |
| 0 | 1648 } |
| 1649 | |
| 1650 static bool verify_serial_gc_flags() { | |
| 1651 return (UseSerialGC && | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1652 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1653 UseParallelGC || UseParallelOldGC)); |
| 0 | 1654 } |
| 1655 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1656 // Check consistency of GC selection |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1657 bool Arguments::check_gc_consistency() { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1658 bool status = true; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1659 // Ensure that the user has not selected conflicting sets |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1660 // of collectors. [Note: this check is merely a user convenience; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1661 // collectors over-ride each other so that only a non-conflicting |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1662 // set is selected; however what the user gets is not what they |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1663 // may have expected from the combination they asked for. It's |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1664 // better to reduce user confusion by not allowing them to |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1665 // select conflicting combinations. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1666 uint i = 0; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1667 if (UseSerialGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1668 if (UseConcMarkSweepGC || UseParNewGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1669 if (UseParallelGC || UseParallelOldGC) i++; |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1670 if (UseG1GC) i++; |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1671 if (i > 1) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1672 jio_fprintf(defaultStream::error_stream(), |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1673 "Conflicting collector combinations in option list; " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1674 "please refer to the release notes for the combinations " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1675 "allowed\n"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1676 status = false; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1677 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1678 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1679 return status; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1680 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1681 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1682 // Check stack pages settings |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1683 bool Arguments::check_stack_pages() |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1684 { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1685 bool status = true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1686 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1687 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1688 // greater stack shadow pages can't generate instruction to bang stack |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1689 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1690 return status; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1691 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1692 |
| 0 | 1693 // Check the consistency of vm_init_args |
| 1694 bool Arguments::check_vm_args_consistency() { | |
| 1695 // Method for adding checks for flag consistency. | |
| 1696 // The intent is to warn the user of all possible conflicts, | |
| 1697 // before returning an error. | |
| 1698 // Note: Needs platform-dependent factoring. | |
| 1699 bool status = true; | |
| 1700 | |
| 1701 #if ( (defined(COMPILER2) && defined(SPARC))) | |
| 1702 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
| 1703 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
| 1704 // x86. Normally, VM_Version_init must be called from init_globals in | |
| 1705 // init.cpp, which is called by the initial java thread *after* arguments | |
| 1706 // have been parsed. VM_Version_init gets called twice on sparc. | |
| 1707 extern void VM_Version_init(); | |
| 1708 VM_Version_init(); | |
| 1709 if (!VM_Version::has_v9()) { | |
| 1710 jio_fprintf(defaultStream::error_stream(), | |
| 1711 "V8 Machine detected, Server requires V9\n"); | |
| 1712 status = false; | |
| 1713 } | |
| 1714 #endif /* COMPILER2 && SPARC */ | |
| 1715 | |
| 1716 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
| 1717 // builds so the cost of stack banging can be measured. | |
| 1718 #if (defined(PRODUCT) && defined(SOLARIS)) | |
| 1719 if (!UseBoundThreads && !UseStackBanging) { | |
| 1720 jio_fprintf(defaultStream::error_stream(), | |
| 1721 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
| 1722 | |
| 1723 status = false; | |
| 1724 } | |
| 1725 #endif | |
| 1726 | |
| 1727 if (TLABRefillWasteFraction == 0) { | |
| 1728 jio_fprintf(defaultStream::error_stream(), | |
| 1729 "TLABRefillWasteFraction should be a denominator, " | |
| 1730 "not " SIZE_FORMAT "\n", | |
| 1731 TLABRefillWasteFraction); | |
| 1732 status = false; | |
| 1733 } | |
| 1734 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1735 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
| 0 | 1736 "AdaptiveSizePolicyWeight"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1737 status = status && verify_percentage(AdaptivePermSizeWeight, "AdaptivePermSizeWeight"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1738 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1739 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1740 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
| 0 | 1741 |
| 1742 if (MinHeapFreeRatio > MaxHeapFreeRatio) { | |
| 1743 jio_fprintf(defaultStream::error_stream(), | |
| 1744 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
| 1745 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
| 1746 MinHeapFreeRatio, MaxHeapFreeRatio); | |
| 1747 status = false; | |
| 1748 } | |
| 1749 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
| 1750 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
| 1751 | |
| 1752 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
| 1753 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
| 1754 } | |
| 1755 | |
|
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1756 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1757 // Settings to encourage splitting. |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1758 if (!FLAG_IS_CMDLINE(NewRatio)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1759 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1760 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1761 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1762 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1763 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1764 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1765 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1766 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1767 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
| 0 | 1768 if (GCTimeLimit == 100) { |
| 1769 // Turn off gc-overhead-limit-exceeded checks | |
| 1770 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
| 1771 } | |
| 1772 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1773 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
| 0 | 1774 |
|
1626
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1775 // Check whether user-specified sharing option conflicts with GC or page size. |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1776 // Both sharing and large pages are enabled by default on some platforms; |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1777 // large pages override sharing only if explicitly set on the command line. |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1778 const bool cannot_share = UseConcMarkSweepGC || CMSIncrementalMode || |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1779 UseG1GC || UseParNewGC || UseParallelGC || UseParallelOldGC || |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1780 UseLargePages && FLAG_IS_CMDLINE(UseLargePages); |
| 0 | 1781 if (cannot_share) { |
| 1782 // Either force sharing on by forcing the other options off, or | |
| 1783 // force sharing off. | |
| 1784 if (DumpSharedSpaces || ForceSharedSpaces) { | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1785 jio_fprintf(defaultStream::error_stream(), |
|
1626
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1786 "Using Serial GC and default page size because of %s\n", |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1787 ForceSharedSpaces ? "-Xshare:on" : "-Xshare:dump"); |
| 1064 | 1788 force_serial_gc(); |
|
1626
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1789 FLAG_SET_DEFAULT(UseLargePages, false); |
| 0 | 1790 } else { |
| 1064 | 1791 if (UseSharedSpaces && Verbose) { |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1792 jio_fprintf(defaultStream::error_stream(), |
|
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1793 "Turning off use of shared archive because of " |
| 1064 | 1794 "choice of garbage collector or large pages\n"); |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1795 } |
| 0 | 1796 no_shared_spaces(); |
| 1797 } | |
|
1626
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1798 } else if (UseLargePages && (UseSharedSpaces || DumpSharedSpaces)) { |
|
1a11430e0326
6888573: class data sharing does not always disable large pages
jcoomes
parents:
1579
diff
changeset
|
1799 FLAG_SET_DEFAULT(UseLargePages, false); |
| 0 | 1800 } |
| 1801 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1802 status = status && check_gc_consistency(); |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1803 status = status && check_stack_pages(); |
| 0 | 1804 |
| 1805 if (_has_alloc_profile) { | |
| 1806 if (UseParallelGC || UseParallelOldGC) { | |
| 1807 jio_fprintf(defaultStream::error_stream(), | |
| 1808 "error: invalid argument combination.\n" | |
| 1809 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1810 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
| 1811 status = false; | |
| 1812 } | |
| 1813 if (UseConcMarkSweepGC) { | |
| 1814 jio_fprintf(defaultStream::error_stream(), | |
| 1815 "error: invalid argument combination.\n" | |
| 1816 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1817 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
| 1818 status = false; | |
| 1819 } | |
| 1820 } | |
| 1821 | |
| 1822 if (CMSIncrementalMode) { | |
| 1823 if (!UseConcMarkSweepGC) { | |
| 1824 jio_fprintf(defaultStream::error_stream(), | |
| 1825 "error: invalid argument combination.\n" | |
| 1826 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
| 1827 "selected in order\nto use CMSIncrementalMode.\n"); | |
| 1828 status = false; | |
| 1829 } else { | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1830 status = status && verify_percentage(CMSIncrementalDutyCycle, |
| 0 | 1831 "CMSIncrementalDutyCycle"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1832 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
| 0 | 1833 "CMSIncrementalDutyCycleMin"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1834 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
| 0 | 1835 "CMSIncrementalSafetyFactor"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1836 status = status && verify_percentage(CMSIncrementalOffset, |
| 0 | 1837 "CMSIncrementalOffset"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1838 status = status && verify_percentage(CMSExpAvgFactor, |
| 0 | 1839 "CMSExpAvgFactor"); |
| 1840 // If it was not set on the command line, set | |
| 1841 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
| 1842 if (CMSInitiatingOccupancyFraction < 0) { | |
| 1843 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
| 1844 } | |
| 1845 } | |
| 1846 } | |
| 1847 | |
| 1848 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
| 1849 // insists that we hold the requisite locks so that the iteration is | |
| 1850 // MT-safe. For the verification at start-up and shut-down, we don't | |
| 1851 // yet have a good way of acquiring and releasing these locks, | |
| 1852 // which are not visible at the CollectedHeap level. We want to | |
| 1853 // be able to acquire these locks and then do the iteration rather | |
| 1854 // than just disable the lock verification. This will be fixed under | |
| 1855 // bug 4788986. | |
| 1856 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
| 1857 if (VerifyGCStartAt == 0) { | |
| 1858 warning("Heap verification at start-up disabled " | |
| 1859 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1860 VerifyGCStartAt = 1; // Disable verification at start-up | |
| 1861 } | |
| 1862 if (VerifyBeforeExit) { | |
| 1863 warning("Heap verification at shutdown disabled " | |
| 1864 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1865 VerifyBeforeExit = false; // Disable verification at shutdown | |
| 1866 } | |
| 1867 } | |
| 1868 | |
| 1869 // Note: only executed in non-PRODUCT mode | |
| 1870 if (!UseAsyncConcMarkSweepGC && | |
| 1871 (ExplicitGCInvokesConcurrent || | |
| 1872 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
| 1873 jio_fprintf(defaultStream::error_stream(), | |
| 1874 "error: +ExplictGCInvokesConcurrent[AndUnloadsClasses] conflicts" | |
| 1875 " with -UseAsyncConcMarkSweepGC"); | |
| 1876 status = false; | |
| 1877 } | |
| 1878 | |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1879 if (UseG1GC) { |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1880 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1881 "InitiatingHeapOccupancyPercent"); |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1882 } |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1883 |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1884 status = status && verify_interval(RefDiscoveryPolicy, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1885 ReferenceProcessor::DiscoveryPolicyMin, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1886 ReferenceProcessor::DiscoveryPolicyMax, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1887 "RefDiscoveryPolicy"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1888 |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1889 // Limit the lower bound of this flag to 1 as it is used in a division |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1890 // expression. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1891 status = status && verify_interval(TLABWasteTargetPercent, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1892 1, 100, "TLABWasteTargetPercent"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1893 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1894 status = status && verify_object_alignment(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1895 |
| 0 | 1896 return status; |
| 1897 } | |
| 1898 | |
| 1899 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
| 1900 const char* option_type) { | |
| 1901 if (ignore) return false; | |
| 1902 | |
| 1903 const char* spacer = " "; | |
| 1904 if (option_type == NULL) { | |
| 1905 option_type = ++spacer; // Set both to the empty string. | |
| 1906 } | |
| 1907 | |
| 1908 if (os::obsolete_option(option)) { | |
| 1909 jio_fprintf(defaultStream::error_stream(), | |
| 1910 "Obsolete %s%soption: %s\n", option_type, spacer, | |
| 1911 option->optionString); | |
| 1912 return false; | |
| 1913 } else { | |
| 1914 jio_fprintf(defaultStream::error_stream(), | |
| 1915 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
| 1916 option->optionString); | |
| 1917 return true; | |
| 1918 } | |
| 1919 } | |
| 1920 | |
| 1921 static const char* user_assertion_options[] = { | |
| 1922 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
| 1923 }; | |
| 1924 | |
| 1925 static const char* system_assertion_options[] = { | |
| 1926 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
| 1927 }; | |
| 1928 | |
| 1929 // Return true if any of the strings in null-terminated array 'names' matches. | |
| 1930 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
| 1931 // the option must match exactly. | |
| 1932 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
| 1933 bool tail_allowed) { | |
| 1934 for (/* empty */; *names != NULL; ++names) { | |
| 1935 if (match_option(option, *names, tail)) { | |
| 1936 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
| 1937 return true; | |
| 1938 } | |
| 1939 } | |
| 1940 } | |
| 1941 return false; | |
| 1942 } | |
| 1943 | |
| 1284 | 1944 bool Arguments::parse_uintx(const char* value, |
| 1945 uintx* uintx_arg, | |
| 1946 uintx min_size) { | |
| 1947 | |
| 1948 // Check the sign first since atomull() parses only unsigned values. | |
| 1949 bool value_is_positive = !(*value == '-'); | |
| 1950 | |
| 1951 if (value_is_positive) { | |
| 1952 julong n; | |
| 1953 bool good_return = atomull(value, &n); | |
| 1954 if (good_return) { | |
| 1955 bool above_minimum = n >= min_size; | |
| 1956 bool value_is_too_large = n > max_uintx; | |
| 1957 | |
| 1958 if (above_minimum && !value_is_too_large) { | |
| 1959 *uintx_arg = n; | |
| 1960 return true; | |
| 1961 } | |
| 1962 } | |
| 1963 } | |
| 1964 return false; | |
| 1965 } | |
| 1966 | |
| 0 | 1967 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
1968 julong* long_arg, |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
1969 julong min_size) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
1970 if (!atomull(s, long_arg)) return arg_unreadable; |
| 0 | 1971 return check_memory_size(*long_arg, min_size); |
| 1972 } | |
| 1973 | |
| 1974 // Parse JavaVMInitArgs structure | |
| 1975 | |
| 1976 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
| 1977 // For components of the system classpath. | |
| 1978 SysClassPath scp(Arguments::get_sysclasspath()); | |
| 1979 bool scp_assembly_required = false; | |
| 1980 | |
| 1981 // Save default settings for some mode flags | |
| 1982 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 1983 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 1984 Arguments::_ClipInlining = ClipInlining; | |
| 1985 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 1986 | |
| 1987 // Parse JAVA_TOOL_OPTIONS environment variable (if present) | |
| 1988 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
| 1989 if (result != JNI_OK) { | |
| 1990 return result; | |
| 1991 } | |
| 1992 | |
| 1993 // Parse JavaVMInitArgs structure passed in | |
| 1994 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
| 1995 if (result != JNI_OK) { | |
| 1996 return result; | |
| 1997 } | |
| 1998 | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
1999 if (AggressiveOpts) { |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2000 // Insert alt-rt.jar between user-specified bootclasspath |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2001 // prefix and the default bootclasspath. os::set_boot_path() |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2002 // uses meta_index_dir as the default bootclasspath directory. |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2003 const char* altclasses_jar = "alt-rt.jar"; |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2004 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2005 strlen(altclasses_jar); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2006 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2007 strcpy(altclasses_path, get_meta_index_dir()); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2008 strcat(altclasses_path, altclasses_jar); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2009 scp.add_suffix_to_prefix(altclasses_path); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2010 scp_assembly_required = true; |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2011 FREE_C_HEAP_ARRAY(char, altclasses_path); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2012 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2013 |
| 0 | 2014 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
| 2015 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
| 2016 if (result != JNI_OK) { | |
| 2017 return result; | |
| 2018 } | |
| 2019 | |
| 2020 // Do final processing now that all arguments have been parsed | |
| 2021 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
| 2022 if (result != JNI_OK) { | |
| 2023 return result; | |
| 2024 } | |
| 2025 | |
| 2026 return JNI_OK; | |
| 2027 } | |
| 2028 | |
| 2029 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
| 2030 SysClassPath* scp_p, | |
| 2031 bool* scp_assembly_required_p, | |
| 2032 FlagValueOrigin origin) { | |
| 2033 // Remaining part of option string | |
| 2034 const char* tail; | |
| 2035 | |
| 2036 // iterate over arguments | |
| 2037 for (int index = 0; index < args->nOptions; index++) { | |
| 2038 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
| 2039 | |
| 2040 const JavaVMOption* option = args->options + index; | |
| 2041 | |
| 2042 if (!match_option(option, "-Djava.class.path", &tail) && | |
| 2043 !match_option(option, "-Dsun.java.command", &tail) && | |
| 2044 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
| 2045 | |
| 2046 // add all jvm options to the jvm_args string. This string | |
| 2047 // is used later to set the java.vm.args PerfData string constant. | |
| 2048 // the -Djava.class.path and the -Dsun.java.command options are | |
| 2049 // omitted from jvm_args string as each have their own PerfData | |
| 2050 // string constant object. | |
| 2051 build_jvm_args(option->optionString); | |
| 2052 } | |
| 2053 | |
| 2054 // -verbose:[class/gc/jni] | |
| 2055 if (match_option(option, "-verbose", &tail)) { | |
| 2056 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
| 2057 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
| 2058 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2059 } else if (!strcmp(tail, ":gc")) { | |
| 2060 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2061 } else if (!strcmp(tail, ":jni")) { | |
| 2062 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
| 2063 } | |
| 2064 // -da / -ea / -disableassertions / -enableassertions | |
| 2065 // These accept an optional class/package name separated by a colon, e.g., | |
| 2066 // -da:java.lang.Thread. | |
| 2067 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
| 2068 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2069 if (*tail == '\0') { | |
| 2070 JavaAssertions::setUserClassDefault(enable); | |
| 2071 } else { | |
| 2072 assert(*tail == ':', "bogus match by match_option()"); | |
| 2073 JavaAssertions::addOption(tail + 1, enable); | |
| 2074 } | |
| 2075 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
| 2076 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
| 2077 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2078 JavaAssertions::setSystemClassDefault(enable); | |
| 2079 // -bootclasspath: | |
| 2080 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
| 2081 scp_p->reset_path(tail); | |
| 2082 *scp_assembly_required_p = true; | |
| 2083 // -bootclasspath/a: | |
| 2084 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
| 2085 scp_p->add_suffix(tail); | |
| 2086 *scp_assembly_required_p = true; | |
| 2087 // -bootclasspath/p: | |
| 2088 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
| 2089 scp_p->add_prefix(tail); | |
| 2090 *scp_assembly_required_p = true; | |
| 2091 // -Xrun | |
| 2092 } else if (match_option(option, "-Xrun", &tail)) { | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2093 if (tail != NULL) { |
| 0 | 2094 const char* pos = strchr(tail, ':'); |
| 2095 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 2096 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1), tail, len); | |
| 2097 name[len] = '\0'; | |
| 2098 | |
| 2099 char *options = NULL; | |
| 2100 if(pos != NULL) { | |
| 2101 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
| 2102 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2), pos+1, len2); | |
| 2103 } | |
| 2104 #ifdef JVMTI_KERNEL | |
| 2105 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
| 2106 warning("profiling and debugging agents are not supported with Kernel VM"); | |
| 2107 } else | |
| 2108 #endif // JVMTI_KERNEL | |
| 2109 add_init_library(name, options); | |
| 2110 } | |
| 2111 // -agentlib and -agentpath | |
| 2112 } else if (match_option(option, "-agentlib:", &tail) || | |
| 2113 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
| 2114 if(tail != NULL) { | |
| 2115 const char* pos = strchr(tail, '='); | |
| 2116 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 2117 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1), tail, len); | |
| 2118 name[len] = '\0'; | |
| 2119 | |
| 2120 char *options = NULL; | |
| 2121 if(pos != NULL) { | |
| 2122 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1), pos + 1); | |
| 2123 } | |
| 2124 #ifdef JVMTI_KERNEL | |
| 2125 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
| 2126 warning("profiling and debugging agents are not supported with Kernel VM"); | |
| 2127 } else | |
| 2128 #endif // JVMTI_KERNEL | |
| 2129 add_init_agent(name, options, is_absolute_path); | |
| 2130 | |
| 2131 } | |
| 2132 // -javaagent | |
| 2133 } else if (match_option(option, "-javaagent:", &tail)) { | |
| 2134 if(tail != NULL) { | |
| 2135 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1), tail); | |
| 2136 add_init_agent("instrument", options, false); | |
| 2137 } | |
| 2138 // -Xnoclassgc | |
| 2139 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
| 2140 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
| 2141 // -Xincgc: i-CMS | |
| 2142 } else if (match_option(option, "-Xincgc", &tail)) { | |
| 2143 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2144 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
| 2145 // -Xnoincgc: no i-CMS | |
| 2146 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
| 2147 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2148 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
| 2149 // -Xconcgc | |
| 2150 } else if (match_option(option, "-Xconcgc", &tail)) { | |
| 2151 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2152 // -Xnoconcgc | |
| 2153 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
| 2154 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2155 // -Xbatch | |
| 2156 } else if (match_option(option, "-Xbatch", &tail)) { | |
| 2157 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2158 // -Xmn for compatibility with other JVM vendors | |
| 2159 } else if (match_option(option, "-Xmn", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2160 julong long_initial_eden_size = 0; |
| 0 | 2161 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
| 2162 if (errcode != arg_in_range) { | |
| 2163 jio_fprintf(defaultStream::error_stream(), | |
| 2164 "Invalid initial eden size: %s\n", option->optionString); | |
| 2165 describe_range_error(errcode); | |
| 2166 return JNI_EINVAL; | |
| 2167 } | |
| 1064 | 2168 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
| 2169 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
| 0 | 2170 // -Xms |
| 2171 } else if (match_option(option, "-Xms", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2172 julong long_initial_heap_size = 0; |
| 0 | 2173 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
| 2174 if (errcode != arg_in_range) { | |
| 2175 jio_fprintf(defaultStream::error_stream(), | |
| 2176 "Invalid initial heap size: %s\n", option->optionString); | |
| 2177 describe_range_error(errcode); | |
| 2178 return JNI_EINVAL; | |
| 2179 } | |
| 1064 | 2180 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
| 0 | 2181 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2182 set_min_heap_size(InitialHeapSize); |
| 0 | 2183 // -Xmx |
| 2184 } else if (match_option(option, "-Xmx", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2185 julong long_max_heap_size = 0; |
| 0 | 2186 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2187 if (errcode != arg_in_range) { | |
| 2188 jio_fprintf(defaultStream::error_stream(), | |
| 2189 "Invalid maximum heap size: %s\n", option->optionString); | |
| 2190 describe_range_error(errcode); | |
| 2191 return JNI_EINVAL; | |
| 2192 } | |
| 1064 | 2193 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
| 0 | 2194 // Xmaxf |
| 2195 } else if (match_option(option, "-Xmaxf", &tail)) { | |
| 2196 int maxf = (int)(atof(tail) * 100); | |
| 2197 if (maxf < 0 || maxf > 100) { | |
| 2198 jio_fprintf(defaultStream::error_stream(), | |
| 2199 "Bad max heap free percentage size: %s\n", | |
| 2200 option->optionString); | |
| 2201 return JNI_EINVAL; | |
| 2202 } else { | |
| 2203 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
| 2204 } | |
| 2205 // Xminf | |
| 2206 } else if (match_option(option, "-Xminf", &tail)) { | |
| 2207 int minf = (int)(atof(tail) * 100); | |
| 2208 if (minf < 0 || minf > 100) { | |
| 2209 jio_fprintf(defaultStream::error_stream(), | |
| 2210 "Bad min heap free percentage size: %s\n", | |
| 2211 option->optionString); | |
| 2212 return JNI_EINVAL; | |
| 2213 } else { | |
| 2214 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
| 2215 } | |
| 2216 // -Xss | |
| 2217 } else if (match_option(option, "-Xss", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2218 julong long_ThreadStackSize = 0; |
| 0 | 2219 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
| 2220 if (errcode != arg_in_range) { | |
| 2221 jio_fprintf(defaultStream::error_stream(), | |
| 2222 "Invalid thread stack size: %s\n", option->optionString); | |
| 2223 describe_range_error(errcode); | |
| 2224 return JNI_EINVAL; | |
| 2225 } | |
| 2226 // Internally track ThreadStackSize in units of 1024 bytes. | |
| 2227 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
| 2228 round_to((int)long_ThreadStackSize, K) / K); | |
| 2229 // -Xoss | |
| 2230 } else if (match_option(option, "-Xoss", &tail)) { | |
| 2231 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
| 2232 // -Xmaxjitcodesize | |
| 2233 } else if (match_option(option, "-Xmaxjitcodesize", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2234 julong long_ReservedCodeCacheSize = 0; |
| 0 | 2235 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2236 (size_t)InitialCodeCacheSize); |
| 0 | 2237 if (errcode != arg_in_range) { |
| 2238 jio_fprintf(defaultStream::error_stream(), | |
| 2239 "Invalid maximum code cache size: %s\n", | |
| 2240 option->optionString); | |
| 2241 describe_range_error(errcode); | |
| 2242 return JNI_EINVAL; | |
| 2243 } | |
| 2244 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
| 2245 // -green | |
| 2246 } else if (match_option(option, "-green", &tail)) { | |
| 2247 jio_fprintf(defaultStream::error_stream(), | |
| 2248 "Green threads support not available\n"); | |
| 2249 return JNI_EINVAL; | |
| 2250 // -native | |
| 2251 } else if (match_option(option, "-native", &tail)) { | |
| 2252 // HotSpot always uses native threads, ignore silently for compatibility | |
| 2253 // -Xsqnopause | |
| 2254 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
| 2255 // EVM option, ignore silently for compatibility | |
| 2256 // -Xrs | |
| 2257 } else if (match_option(option, "-Xrs", &tail)) { | |
| 2258 // Classic/EVM option, new functionality | |
| 2259 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
| 2260 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
| 2261 // change default internal VM signals used - lower case for back compat | |
| 2262 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
| 2263 // -Xoptimize | |
| 2264 } else if (match_option(option, "-Xoptimize", &tail)) { | |
| 2265 // EVM option, ignore silently for compatibility | |
| 2266 // -Xprof | |
| 2267 } else if (match_option(option, "-Xprof", &tail)) { | |
| 2268 #ifndef FPROF_KERNEL | |
| 2269 _has_profile = true; | |
| 2270 #else // FPROF_KERNEL | |
| 2271 // do we have to exit? | |
| 2272 warning("Kernel VM does not support flat profiling."); | |
| 2273 #endif // FPROF_KERNEL | |
| 2274 // -Xaprof | |
| 2275 } else if (match_option(option, "-Xaprof", &tail)) { | |
| 2276 _has_alloc_profile = true; | |
| 2277 // -Xconcurrentio | |
| 2278 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
| 2279 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
| 2280 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2281 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
| 2282 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2283 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
| 2284 | |
| 2285 // -Xinternalversion | |
| 2286 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
| 2287 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
| 2288 VM_Version::internal_vm_info_string()); | |
| 2289 vm_exit(0); | |
| 2290 #ifndef PRODUCT | |
| 2291 // -Xprintflags | |
| 2292 } else if (match_option(option, "-Xprintflags", &tail)) { | |
| 2293 CommandLineFlags::printFlags(); | |
| 2294 vm_exit(0); | |
| 2295 #endif | |
| 2296 // -D | |
| 2297 } else if (match_option(option, "-D", &tail)) { | |
| 2298 if (!add_property(tail)) { | |
| 2299 return JNI_ENOMEM; | |
| 2300 } | |
| 2301 // Out of the box management support | |
| 2302 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
| 2303 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
| 2304 } | |
| 2305 // -Xint | |
| 2306 } else if (match_option(option, "-Xint", &tail)) { | |
| 2307 set_mode_flags(_int); | |
| 2308 // -Xmixed | |
| 2309 } else if (match_option(option, "-Xmixed", &tail)) { | |
| 2310 set_mode_flags(_mixed); | |
| 2311 // -Xcomp | |
| 2312 } else if (match_option(option, "-Xcomp", &tail)) { | |
| 2313 // for testing the compiler; turn off all flags that inhibit compilation | |
| 2314 set_mode_flags(_comp); | |
| 2315 | |
| 2316 // -Xshare:dump | |
| 2317 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
| 2318 #ifdef TIERED | |
| 2319 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2320 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2321 #elif defined(COMPILER2) | |
| 2322 vm_exit_during_initialization( | |
| 2323 "Dumping a shared archive is not supported on the Server JVM.", NULL); | |
| 2324 #elif defined(KERNEL) | |
| 2325 vm_exit_during_initialization( | |
| 2326 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
| 2327 #else | |
| 2328 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2329 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2330 #endif | |
| 2331 // -Xshare:on | |
| 2332 } else if (match_option(option, "-Xshare:on", &tail)) { | |
| 2333 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2334 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
| 2335 #ifdef TIERED | |
| 2336 FLAG_SET_CMDLINE(bool, ForceSharedSpaces, true); | |
| 2337 #endif // TIERED | |
| 2338 // -Xshare:auto | |
| 2339 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
| 2340 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2341 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2342 // -Xshare:off | |
| 2343 } else if (match_option(option, "-Xshare:off", &tail)) { | |
| 2344 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
| 2345 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2346 | |
| 2347 // -Xverify | |
| 2348 } else if (match_option(option, "-Xverify", &tail)) { | |
| 2349 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
| 2350 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
| 2351 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2352 } else if (strcmp(tail, ":remote") == 0) { | |
| 2353 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2354 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2355 } else if (strcmp(tail, ":none") == 0) { | |
| 2356 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2357 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
| 2358 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
| 2359 return JNI_EINVAL; | |
| 2360 } | |
| 2361 // -Xdebug | |
| 2362 } else if (match_option(option, "-Xdebug", &tail)) { | |
| 2363 // note this flag has been used, then ignore | |
| 2364 set_xdebug_mode(true); | |
| 2365 // -Xnoagent | |
| 2366 } else if (match_option(option, "-Xnoagent", &tail)) { | |
| 2367 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
| 2368 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
| 2369 // Bind user level threads to kernel threads (Solaris only) | |
| 2370 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
| 2371 } else if (match_option(option, "-Xloggc:", &tail)) { | |
| 2372 // Redirect GC output to the file. -Xloggc:<filename> | |
| 2373 // ostream_init_log(), when called will use this filename | |
| 2374 // to initialize a fileStream. | |
| 2375 _gc_log_filename = strdup(tail); | |
| 2376 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2377 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
| 2378 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2379 | |
| 2380 // JNI hooks | |
| 2381 } else if (match_option(option, "-Xcheck", &tail)) { | |
| 2382 if (!strcmp(tail, ":jni")) { | |
| 2383 CheckJNICalls = true; | |
| 2384 } else if (is_bad_option(option, args->ignoreUnrecognized, | |
| 2385 "check")) { | |
| 2386 return JNI_EINVAL; | |
| 2387 } | |
| 2388 } else if (match_option(option, "vfprintf", &tail)) { | |
| 2389 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
| 2390 } else if (match_option(option, "exit", &tail)) { | |
| 2391 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
| 2392 } else if (match_option(option, "abort", &tail)) { | |
| 2393 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
| 2394 // -XX:+AggressiveHeap | |
| 2395 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
| 2396 | |
| 2397 // This option inspects the machine and attempts to set various | |
| 2398 // parameters to be optimal for long-running, memory allocation | |
| 2399 // intensive jobs. It is intended for machines with large | |
| 2400 // amounts of cpu and memory. | |
| 2401 | |
| 2402 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
| 2403 // VM, but we may not be able to represent the total physical memory | |
| 2404 // available (like having 8gb of memory on a box but using a 32bit VM). | |
| 2405 // Thus, we need to make sure we're using a julong for intermediate | |
| 2406 // calculations. | |
| 2407 julong initHeapSize; | |
| 2408 julong total_memory = os::physical_memory(); | |
| 2409 | |
| 2410 if (total_memory < (julong)256*M) { | |
| 2411 jio_fprintf(defaultStream::error_stream(), | |
| 2412 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
| 2413 vm_exit(1); | |
| 2414 } | |
| 2415 | |
| 2416 // The heap size is half of available memory, or (at most) | |
| 2417 // all of possible memory less 160mb (leaving room for the OS | |
| 2418 // when using ISM). This is the maximum; because adaptive sizing | |
| 2419 // is turned on below, the actual space used may be smaller. | |
| 2420 | |
| 2421 initHeapSize = MIN2(total_memory / (julong)2, | |
| 2422 total_memory - (julong)160*M); | |
| 2423 | |
| 2424 // Make sure that if we have a lot of memory we cap the 32 bit | |
| 2425 // process space. The 64bit VM version of this function is a nop. | |
| 2426 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
| 2427 | |
| 2428 // The perm gen is separate but contiguous with the | |
| 2429 // object heap (and is reserved with it) so subtract it | |
| 2430 // from the heap size. | |
| 2431 if (initHeapSize > MaxPermSize) { | |
| 2432 initHeapSize = initHeapSize - MaxPermSize; | |
| 2433 } else { | |
| 2434 warning("AggressiveHeap and MaxPermSize values may conflict"); | |
| 2435 } | |
| 2436 | |
| 2437 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
| 2438 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
| 1064 | 2439 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
| 0 | 2440 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2441 set_min_heap_size(initHeapSize); |
| 0 | 2442 } |
| 2443 if (FLAG_IS_DEFAULT(NewSize)) { | |
| 2444 // Make the young generation 3/8ths of the total heap. | |
| 2445 FLAG_SET_CMDLINE(uintx, NewSize, | |
| 2446 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
| 2447 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
| 2448 } | |
| 2449 | |
| 2450 FLAG_SET_DEFAULT(UseLargePages, true); | |
| 2451 | |
| 2452 // Increase some data structure sizes for efficiency | |
| 2453 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
| 2454 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2455 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
| 2456 | |
| 2457 // See the OldPLABSize comment below, but replace 'after promotion' | |
| 2458 // with 'after copying'. YoungPLABSize is the size of the survivor | |
| 2459 // space per-gc-thread buffers. The default is 4kw. | |
| 2460 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
| 2461 | |
| 2462 // OldPLABSize is the size of the buffers in the old gen that | |
| 2463 // UseParallelGC uses to promote live data that doesn't fit in the | |
| 2464 // survivor spaces. At any given time, there's one for each gc thread. | |
| 2465 // The default size is 1kw. These buffers are rarely used, since the | |
| 2466 // survivor spaces are usually big enough. For specjbb, however, there | |
| 2467 // are occasions when there's lots of live data in the young gen | |
| 2468 // and we end up promoting some of it. We don't have a definite | |
| 2469 // explanation for why bumping OldPLABSize helps, but the theory | |
| 2470 // is that a bigger PLAB results in retaining something like the | |
| 2471 // original allocation order after promotion, which improves mutator | |
| 2472 // locality. A minor effect may be that larger PLABs reduce the | |
| 2473 // number of PLAB allocation events during gc. The value of 8kw | |
| 2474 // was arrived at by experimenting with specjbb. | |
| 2475 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
| 2476 | |
| 2477 // CompilationPolicyChoice=0 causes the server compiler to adopt | |
| 2478 // a more conservative which-method-do-I-compile policy when one | |
| 2479 // of the counters maintained by the interpreter trips. The | |
| 2480 // result is reduced startup time and improved specjbb and | |
| 2481 // alacrity performance. Zero is the default, but we set it | |
| 2482 // explicitly here in case the default changes. | |
| 2483 // See runtime/compilationPolicy.*. | |
| 2484 FLAG_SET_CMDLINE(intx, CompilationPolicyChoice, 0); | |
| 2485 | |
| 2486 // Enable parallel GC and adaptive generation sizing | |
| 2487 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2488 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2489 Abstract_VM_Version::parallel_worker_threads()); |
| 0 | 2490 |
| 2491 // Encourage steady state memory management | |
| 2492 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
| 2493 | |
| 2494 // This appears to improve mutator locality | |
| 2495 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2496 | |
| 2497 // Get around early Solaris scheduling bug | |
| 2498 // (affinity vs other jobs on system) | |
| 2499 // but disallow DR and offlining (5008695). | |
| 2500 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
| 2501 | |
| 2502 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
| 2503 // The last option must always win. | |
| 2504 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
| 2505 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
| 2506 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
| 2507 // The last option must always win. | |
| 2508 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
| 2509 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
| 2510 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
| 2511 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
| 2512 jio_fprintf(defaultStream::error_stream(), | |
| 2513 "Please use CMSClassUnloadingEnabled in place of " | |
| 2514 "CMSPermGenSweepingEnabled in the future\n"); | |
| 2515 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
| 2516 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
| 2517 jio_fprintf(defaultStream::error_stream(), | |
| 2518 "Please use -XX:+UseGCOverheadLimit in place of " | |
| 2519 "-XX:+UseGCTimeLimit in the future\n"); | |
| 2520 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
| 2521 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
| 2522 jio_fprintf(defaultStream::error_stream(), | |
| 2523 "Please use -XX:-UseGCOverheadLimit in place of " | |
| 2524 "-XX:-UseGCTimeLimit in the future\n"); | |
| 2525 // The TLE options are for compatibility with 1.3 and will be | |
| 2526 // removed without notice in a future release. These options | |
| 2527 // are not to be documented. | |
| 2528 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
| 2529 // No longer used. | |
| 2530 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
| 2531 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
| 2532 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
| 2533 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2534 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
| 2535 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
| 2536 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
| 2537 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
| 2538 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
| 2539 // No longer used. | |
| 2540 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2541 julong long_tlab_size = 0; |
| 0 | 2542 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
| 2543 if (errcode != arg_in_range) { | |
| 2544 jio_fprintf(defaultStream::error_stream(), | |
| 2545 "Invalid TLAB size: %s\n", option->optionString); | |
| 2546 describe_range_error(errcode); | |
| 2547 return JNI_EINVAL; | |
| 2548 } | |
| 2549 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
| 2550 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
| 2551 // No longer used. | |
| 2552 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
| 2553 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
| 2554 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
| 2555 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2556 SOLARIS_ONLY( | |
| 2557 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
| 2558 warning("-XX:+UsePermISM is obsolete."); | |
| 2559 FLAG_SET_CMDLINE(bool, UseISM, true); | |
| 2560 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
| 2561 FLAG_SET_CMDLINE(bool, UseISM, false); | |
| 2562 ) | |
| 2563 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
| 2564 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
| 2565 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
| 2566 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
| 2567 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
| 2568 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
| 2569 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
| 2570 #ifdef SOLARIS | |
| 2571 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); | |
| 2572 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
| 2573 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
| 2574 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
| 2575 #else // ndef SOLARIS | |
| 2576 jio_fprintf(defaultStream::error_stream(), | |
| 2577 "ExtendedDTraceProbes flag is only applicable on Solaris\n"); | |
| 2578 return JNI_EINVAL; | |
| 2579 #endif // ndef SOLARIS | |
| 2580 #ifdef ASSERT | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2581 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
| 0 | 2582 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
| 2583 // disable scavenge before parallel mark-compact | |
| 2584 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2585 #endif | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2586 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
| 0 | 2587 julong cms_blocks_to_claim = (julong)atol(tail); |
| 2588 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
| 2589 jio_fprintf(defaultStream::error_stream(), | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2590 "Please use -XX:OldPLABSize in place of " |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2591 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2592 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2593 julong cms_blocks_to_claim = (julong)atol(tail); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2594 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2595 jio_fprintf(defaultStream::error_stream(), |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2596 "Please use -XX:OldPLABSize in place of " |
| 0 | 2597 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2598 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2599 julong old_plab_size = 0; |
| 0 | 2600 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
| 2601 if (errcode != arg_in_range) { | |
| 2602 jio_fprintf(defaultStream::error_stream(), | |
| 2603 "Invalid old PLAB size: %s\n", option->optionString); | |
| 2604 describe_range_error(errcode); | |
| 2605 return JNI_EINVAL; | |
| 2606 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2607 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
| 0 | 2608 jio_fprintf(defaultStream::error_stream(), |
| 2609 "Please use -XX:OldPLABSize in place of " | |
| 2610 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2611 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2612 julong young_plab_size = 0; |
| 0 | 2613 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
| 2614 if (errcode != arg_in_range) { | |
| 2615 jio_fprintf(defaultStream::error_stream(), | |
| 2616 "Invalid young PLAB size: %s\n", option->optionString); | |
| 2617 describe_range_error(errcode); | |
| 2618 return JNI_EINVAL; | |
| 2619 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2620 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
| 0 | 2621 jio_fprintf(defaultStream::error_stream(), |
| 2622 "Please use -XX:YoungPLABSize in place of " | |
| 2623 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
| 1284 | 2624 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
| 2625 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
| 2626 julong stack_size = 0; | |
| 2627 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
| 2628 if (errcode != arg_in_range) { | |
| 2629 jio_fprintf(defaultStream::error_stream(), | |
| 2630 "Invalid mark stack size: %s\n", option->optionString); | |
| 2631 describe_range_error(errcode); | |
| 2632 return JNI_EINVAL; | |
| 2633 } | |
| 2634 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
| 2635 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
| 2636 julong max_stack_size = 0; | |
| 2637 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
| 2638 if (errcode != arg_in_range) { | |
| 2639 jio_fprintf(defaultStream::error_stream(), | |
| 2640 "Invalid maximum mark stack size: %s\n", | |
| 2641 option->optionString); | |
| 2642 describe_range_error(errcode); | |
| 2643 return JNI_EINVAL; | |
| 2644 } | |
| 2645 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
| 2646 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
| 2647 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
| 2648 uintx conc_threads = 0; | |
| 2649 if (!parse_uintx(tail, &conc_threads, 1)) { | |
| 2650 jio_fprintf(defaultStream::error_stream(), | |
| 2651 "Invalid concurrent threads: %s\n", option->optionString); | |
| 2652 return JNI_EINVAL; | |
| 2653 } | |
| 2654 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2655 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 0 | 2656 // Skip -XX:Flags= since that case has already been handled |
| 2657 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
| 2658 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
| 2659 return JNI_EINVAL; | |
| 2660 } | |
| 2661 } | |
| 2662 // Unknown option | |
| 2663 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
| 2664 return JNI_ERR; | |
| 2665 } | |
| 2666 } | |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2667 // Change the default value for flags which have different default values |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2668 // when working with older JDKs. |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2669 if (JDK_Version::current().compare_major(6) <= 0 && |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2670 FLAG_IS_DEFAULT(UseVMInterruptibleIO)) { |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2671 FLAG_SET_DEFAULT(UseVMInterruptibleIO, true); |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2672 } |
|
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2673 #ifdef LINUX |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2674 if (JDK_Version::current().compare_major(6) <= 0 && |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2675 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2676 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2677 } |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2678 #endif // LINUX |
| 0 | 2679 return JNI_OK; |
| 2680 } | |
| 2681 | |
| 2682 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
| 2683 // This must be done after all -D arguments have been processed. | |
| 2684 scp_p->expand_endorsed(); | |
| 2685 | |
| 2686 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
| 2687 // Assemble the bootclasspath elements into the final path. | |
| 2688 Arguments::set_sysclasspath(scp_p->combined_path()); | |
| 2689 } | |
| 2690 | |
| 2691 // This must be done after all arguments have been processed. | |
| 2692 // java_compiler() true means set to "NONE" or empty. | |
| 2693 if (java_compiler() && !xdebug_mode()) { | |
| 2694 // For backwards compatibility, we switch to interpreted mode if | |
| 2695 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
| 2696 // not specified. | |
| 2697 set_mode_flags(_int); | |
| 2698 } | |
| 2699 if (CompileThreshold == 0) { | |
| 2700 set_mode_flags(_int); | |
| 2701 } | |
| 2702 | |
| 2703 #ifndef COMPILER2 | |
| 2704 // Don't degrade server performance for footprint | |
| 2705 if (FLAG_IS_DEFAULT(UseLargePages) && | |
| 2706 MaxHeapSize < LargePageHeapSizeThreshold) { | |
| 2707 // No need for large granularity pages w/small heaps. | |
| 2708 // Note that large pages are enabled/disabled for both the | |
| 2709 // Java heap and the code cache. | |
| 2710 FLAG_SET_DEFAULT(UseLargePages, false); | |
| 2711 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
| 2712 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
| 2713 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2714 |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2715 // Tiered compilation is undefined with C1. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2716 TieredCompilation = false; |
| 0 | 2717 #else |
| 2718 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
| 2719 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
| 2720 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2721 // Temporary disable bulk zeroing reduction with G1. See CR 6627983. |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2722 if (UseG1GC) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2723 FLAG_SET_DEFAULT(ReduceBulkZeroing, false); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2724 } |
| 0 | 2725 #endif |
| 2726 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2727 // If we are running in a headless jre, force java.awt.headless property |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2728 // to be true unless the property has already been set. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2729 // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2730 if (os::is_headless_jre()) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2731 const char* headless = Arguments::get_property("java.awt.headless"); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2732 if (headless == NULL) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2733 char envbuffer[128]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2734 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2735 if (!add_property("java.awt.headless=true")) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2736 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2737 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2738 } else { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2739 char buffer[256]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2740 strcpy(buffer, "java.awt.headless="); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2741 strcat(buffer, envbuffer); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2742 if (!add_property(buffer)) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2743 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2744 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2745 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2746 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2747 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2748 |
| 0 | 2749 if (!check_vm_args_consistency()) { |
| 2750 return JNI_ERR; | |
| 2751 } | |
| 2752 | |
| 2753 return JNI_OK; | |
| 2754 } | |
| 2755 | |
| 2756 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2757 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
| 2758 scp_assembly_required_p); | |
| 2759 } | |
| 2760 | |
| 2761 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2762 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
| 2763 scp_assembly_required_p); | |
| 2764 } | |
| 2765 | |
| 2766 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2767 const int N_MAX_OPTIONS = 64; | |
| 2768 const int OPTION_BUFFER_SIZE = 1024; | |
| 2769 char buffer[OPTION_BUFFER_SIZE]; | |
| 2770 | |
| 2771 // The variable will be ignored if it exceeds the length of the buffer. | |
| 2772 // Don't check this variable if user has special privileges | |
| 2773 // (e.g. unix su command). | |
| 2774 if (os::getenv(name, buffer, sizeof(buffer)) && | |
| 2775 !os::have_special_privileges()) { | |
| 2776 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
| 2777 jio_fprintf(defaultStream::error_stream(), | |
| 2778 "Picked up %s: %s\n", name, buffer); | |
| 2779 char* rd = buffer; // pointer to the input string (rd) | |
| 2780 int i; | |
| 2781 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
| 2782 while (isspace(*rd)) rd++; // skip whitespace | |
| 2783 if (*rd == 0) break; // we re done when the input string is read completely | |
| 2784 | |
| 2785 // The output, option string, overwrites the input string. | |
| 2786 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
| 2787 // input string (rd). | |
| 2788 char* wrt = rd; | |
| 2789 | |
| 2790 options[i++].optionString = wrt; // Fill in option | |
| 2791 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
| 2792 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
| 2793 int quote = *rd; // matching quote to look for | |
| 2794 rd++; // don't copy open quote | |
| 2795 while (*rd != quote) { // include everything (even spaces) up until quote | |
| 2796 if (*rd == 0) { // string termination means unmatched string | |
| 2797 jio_fprintf(defaultStream::error_stream(), | |
| 2798 "Unmatched quote in %s\n", name); | |
| 2799 return JNI_ERR; | |
| 2800 } | |
| 2801 *wrt++ = *rd++; // copy to option string | |
| 2802 } | |
| 2803 rd++; // don't copy close quote | |
| 2804 } else { | |
| 2805 *wrt++ = *rd++; // copy to option string | |
| 2806 } | |
| 2807 } | |
| 2808 // Need to check if we're done before writing a NULL, | |
| 2809 // because the write could be to the byte that rd is pointing to. | |
| 2810 if (*rd++ == 0) { | |
| 2811 *wrt = 0; | |
| 2812 break; | |
| 2813 } | |
| 2814 *wrt = 0; // Zero terminate option | |
| 2815 } | |
| 2816 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
| 2817 JavaVMInitArgs vm_args; | |
| 2818 vm_args.version = JNI_VERSION_1_2; | |
| 2819 vm_args.options = options; | |
| 2820 vm_args.nOptions = i; | |
| 564 | 2821 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 0 | 2822 |
| 2823 if (PrintVMOptions) { | |
| 2824 const char* tail; | |
| 2825 for (int i = 0; i < vm_args.nOptions; i++) { | |
| 2826 const JavaVMOption *option = vm_args.options + i; | |
| 2827 if (match_option(option, "-XX:", &tail)) { | |
| 2828 logOption(tail); | |
| 2829 } | |
| 2830 } | |
| 2831 } | |
| 2832 | |
| 2833 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
| 2834 } | |
| 2835 return JNI_OK; | |
| 2836 } | |
| 2837 | |
| 2838 // Parse entry point called from JNI_CreateJavaVM | |
| 2839 | |
| 2840 jint Arguments::parse(const JavaVMInitArgs* args) { | |
| 2841 | |
| 2842 // Sharing support | |
| 2843 // Construct the path to the archive | |
| 2844 char jvm_path[JVM_MAXPATHLEN]; | |
| 2845 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
| 2846 #ifdef TIERED | |
| 2847 if (strstr(jvm_path, "client") != NULL) { | |
| 2848 force_client_mode = true; | |
| 2849 } | |
| 2850 #endif // TIERED | |
| 2851 char *end = strrchr(jvm_path, *os::file_separator()); | |
| 2852 if (end != NULL) *end = '\0'; | |
| 2853 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
| 2854 strlen(os::file_separator()) + 20); | |
| 2855 if (shared_archive_path == NULL) return JNI_ENOMEM; | |
| 2856 strcpy(shared_archive_path, jvm_path); | |
| 2857 strcat(shared_archive_path, os::file_separator()); | |
| 2858 strcat(shared_archive_path, "classes"); | |
| 2859 DEBUG_ONLY(strcat(shared_archive_path, "_g");) | |
| 2860 strcat(shared_archive_path, ".jsa"); | |
| 2861 SharedArchivePath = shared_archive_path; | |
| 2862 | |
| 2863 // Remaining part of option string | |
| 2864 const char* tail; | |
| 2865 | |
| 2866 // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. | |
| 2867 bool settings_file_specified = false; | |
| 564 | 2868 const char* flags_file; |
| 0 | 2869 int index; |
| 2870 for (index = 0; index < args->nOptions; index++) { | |
| 2871 const JavaVMOption *option = args->options + index; | |
| 2872 if (match_option(option, "-XX:Flags=", &tail)) { | |
| 564 | 2873 flags_file = tail; |
| 0 | 2874 settings_file_specified = true; |
| 2875 } | |
| 2876 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
| 2877 PrintVMOptions = true; | |
| 2878 } | |
|
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
2879 if (match_option(option, "-XX:-PrintVMOptions", &tail)) { |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
2880 PrintVMOptions = false; |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
2881 } |
| 564 | 2882 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
| 2883 IgnoreUnrecognizedVMOptions = true; | |
| 2884 } | |
| 2885 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
| 2886 IgnoreUnrecognizedVMOptions = false; | |
| 2887 } | |
| 1150 | 2888 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
| 2889 CommandLineFlags::printFlags(); | |
| 2890 vm_exit(0); | |
| 2891 } | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2892 |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2893 #ifndef PRODUCT |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2894 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2895 CommandLineFlags::printFlags(true); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2896 vm_exit(0); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2897 } |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
2898 #endif |
| 564 | 2899 } |
| 2900 | |
| 2901 if (IgnoreUnrecognizedVMOptions) { | |
| 2902 // uncast const to modify the flag args->ignoreUnrecognized | |
| 2903 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
| 2904 } | |
| 2905 | |
| 2906 // Parse specified settings file | |
| 2907 if (settings_file_specified) { | |
| 2908 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
| 2909 return JNI_EINVAL; | |
| 2910 } | |
| 0 | 2911 } |
| 2912 | |
| 2913 // Parse default .hotspotrc settings file | |
| 2914 if (!settings_file_specified) { | |
| 2915 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { | |
| 2916 return JNI_EINVAL; | |
| 2917 } | |
| 2918 } | |
| 2919 | |
| 2920 if (PrintVMOptions) { | |
| 2921 for (index = 0; index < args->nOptions; index++) { | |
| 2922 const JavaVMOption *option = args->options + index; | |
| 2923 if (match_option(option, "-XX:", &tail)) { | |
| 2924 logOption(tail); | |
| 2925 } | |
| 2926 } | |
| 2927 } | |
| 2928 | |
| 2929 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
| 2930 jint result = parse_vm_init_args(args); | |
| 2931 if (result != JNI_OK) { | |
| 2932 return result; | |
| 2933 } | |
| 2934 | |
| 2935 #ifndef PRODUCT | |
| 2936 if (TraceBytecodesAt != 0) { | |
| 2937 TraceBytecodes = true; | |
| 2938 } | |
| 2939 if (CountCompiledCalls) { | |
| 2940 if (UseCounterDecay) { | |
| 2941 warning("UseCounterDecay disabled because CountCalls is set"); | |
| 2942 UseCounterDecay = false; | |
| 2943 } | |
| 2944 } | |
| 2945 #endif // PRODUCT | |
| 2946 | |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
2947 if (EnableInvokeDynamic && !EnableMethodHandles) { |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
2948 if (!FLAG_IS_DEFAULT(EnableMethodHandles)) { |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2949 warning("forcing EnableMethodHandles true because EnableInvokeDynamic is true"); |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
2950 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
2951 EnableMethodHandles = true; |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
2952 } |
| 710 | 2953 if (EnableMethodHandles && !AnonymousClasses) { |
| 2954 if (!FLAG_IS_DEFAULT(AnonymousClasses)) { | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2955 warning("forcing AnonymousClasses true because EnableMethodHandles is true"); |
| 710 | 2956 } |
| 2957 AnonymousClasses = true; | |
| 2958 } | |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2959 if ((EnableMethodHandles || AnonymousClasses) && ScavengeRootsInCode == 0) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2960 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2961 warning("forcing ScavengeRootsInCode non-zero because EnableMethodHandles or AnonymousClasses is true"); |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2962 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2963 ScavengeRootsInCode = 1; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
2964 } |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2965 #ifdef COMPILER2 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2966 if (EnableInvokeDynamic && DoEscapeAnalysis) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2967 // TODO: We need to find rules for invokedynamic and EA. For now, |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2968 // simply disable EA by default. |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2969 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2970 DoEscapeAnalysis = false; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2971 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2972 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
2973 #endif |
| 710 | 2974 |
| 0 | 2975 if (PrintGCDetails) { |
| 2976 // Turn on -verbose:gc options as well | |
| 2977 PrintGC = true; | |
| 2978 } | |
| 2979 | |
| 1783 | 2980 #if defined(_LP64) && defined(COMPILER1) && !defined(TIERED) |
| 1060 | 2981 UseCompressedOops = false; |
| 2982 #endif | |
| 2983 | |
| 1875 | 2984 #if defined(_LP64) |
| 2985 if ((DumpSharedSpaces || RequireSharedSpaces) && UseCompressedOops) { | |
| 2986 // Disable compressed oops with shared spaces | |
| 2987 UseCompressedOops = false; | |
| 2988 } | |
| 2989 #endif | |
| 2990 | |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2991 // Set object alignment values. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2992 set_object_alignment(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2993 |
| 0 | 2994 #ifdef SERIALGC |
| 1064 | 2995 force_serial_gc(); |
| 0 | 2996 #endif // SERIALGC |
| 2997 #ifdef KERNEL | |
| 2998 no_shared_spaces(); | |
| 2999 #endif // KERNEL | |
| 3000 | |
| 3001 // Set flags based on ergonomics. | |
| 3002 set_ergonomics_flags(); | |
| 3003 | |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3004 #ifdef _LP64 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3005 // XXX JSR 292 currently does not support compressed oops. |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3006 if (EnableMethodHandles && UseCompressedOops) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3007 if (FLAG_IS_DEFAULT(UseCompressedOops) || FLAG_IS_ERGO(UseCompressedOops)) { |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3008 UseCompressedOops = false; |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3009 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3010 } |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3011 #endif // _LP64 |
|
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3012 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3013 // Check the GC selections again. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3014 if (!check_gc_consistency()) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3015 return JNI_EINVAL; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3016 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3017 |
| 1783 | 3018 if (TieredCompilation) { |
| 3019 set_tiered_flags(); | |
| 3020 } else { | |
| 3021 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
| 3022 if (CompilationPolicyChoice >= 2) { | |
| 3023 vm_exit_during_initialization( | |
| 3024 "Incompatible compilation policy selected", NULL); | |
| 3025 } | |
| 3026 } | |
| 3027 | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3028 #ifndef KERNEL |
| 1064 | 3029 if (UseConcMarkSweepGC) { |
| 3030 // Set flags for CMS and ParNew. Check UseConcMarkSweep first | |
| 3031 // to ensure that when both UseConcMarkSweepGC and UseParNewGC | |
| 3032 // are true, we don't call set_parnew_gc_flags() as well. | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3033 set_cms_and_parnew_gc_flags(); |
| 1064 | 3034 } else { |
| 3035 // Set heap size based on available physical memory | |
| 3036 set_heap_size(); | |
| 3037 // Set per-collector flags | |
| 3038 if (UseParallelGC || UseParallelOldGC) { | |
| 3039 set_parallel_gc_flags(); | |
| 3040 } else if (UseParNewGC) { | |
| 3041 set_parnew_gc_flags(); | |
| 3042 } else if (UseG1GC) { | |
| 3043 set_g1_gc_flags(); | |
| 3044 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3045 } |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3046 #endif // KERNEL |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3047 |
| 0 | 3048 #ifdef SERIALGC |
| 3049 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
| 3050 #endif // SERIALGC | |
| 3051 | |
| 3052 // Set bytecode rewriting flags | |
| 3053 set_bytecode_flags(); | |
| 3054 | |
| 3055 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
| 3056 set_aggressive_opts_flags(); | |
| 3057 | |
| 3058 #ifdef CC_INTERP | |
| 1131 | 3059 // Clear flags not supported by the C++ interpreter |
| 3060 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
| 0 | 3061 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
| 1131 | 3062 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
| 3063 #endif // CC_INTERP | |
| 3064 | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3065 #ifdef COMPILER2 |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3066 if (!UseBiasedLocking || EmitSync != 0) { |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3067 UseOptoBiasInlining = false; |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3068 } |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3069 #endif |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3070 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3071 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3072 warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3073 DebugNonSafepoints = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3074 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3075 |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3076 #ifndef PRODUCT |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3077 if (CompileTheWorld) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3078 // Force NmethodSweeper to sweep whole CodeCache each time. |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3079 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3080 NmethodSweepFraction = 1; |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3081 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3082 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3083 #endif |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3084 |
| 0 | 3085 if (PrintCommandLineFlags) { |
| 3086 CommandLineFlags::printSetFlags(); | |
| 3087 } | |
| 3088 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3089 // Apply CPU specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3090 if (UseBiasedLocking) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3091 if (!VM_Version::use_biased_locking() && |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3092 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3093 UseBiasedLocking = false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3094 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3095 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3096 |
| 0 | 3097 return JNI_OK; |
| 3098 } | |
| 3099 | |
| 3100 int Arguments::PropertyList_count(SystemProperty* pl) { | |
| 3101 int count = 0; | |
| 3102 while(pl != NULL) { | |
| 3103 count++; | |
| 3104 pl = pl->next(); | |
| 3105 } | |
| 3106 return count; | |
| 3107 } | |
| 3108 | |
| 3109 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
| 3110 assert(key != NULL, "just checking"); | |
| 3111 SystemProperty* prop; | |
| 3112 for (prop = pl; prop != NULL; prop = prop->next()) { | |
| 3113 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
| 3114 } | |
| 3115 return NULL; | |
| 3116 } | |
| 3117 | |
| 3118 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
| 3119 int count = 0; | |
| 3120 const char* ret_val = NULL; | |
| 3121 | |
| 3122 while(pl != NULL) { | |
| 3123 if(count >= index) { | |
| 3124 ret_val = pl->key(); | |
| 3125 break; | |
| 3126 } | |
| 3127 count++; | |
| 3128 pl = pl->next(); | |
| 3129 } | |
| 3130 | |
| 3131 return ret_val; | |
| 3132 } | |
| 3133 | |
| 3134 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
| 3135 int count = 0; | |
| 3136 char* ret_val = NULL; | |
| 3137 | |
| 3138 while(pl != NULL) { | |
| 3139 if(count >= index) { | |
| 3140 ret_val = pl->value(); | |
| 3141 break; | |
| 3142 } | |
| 3143 count++; | |
| 3144 pl = pl->next(); | |
| 3145 } | |
| 3146 | |
| 3147 return ret_val; | |
| 3148 } | |
| 3149 | |
| 3150 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
| 3151 SystemProperty* p = *plist; | |
| 3152 if (p == NULL) { | |
| 3153 *plist = new_p; | |
| 3154 } else { | |
| 3155 while (p->next() != NULL) { | |
| 3156 p = p->next(); | |
| 3157 } | |
| 3158 p->set_next(new_p); | |
| 3159 } | |
| 3160 } | |
| 3161 | |
| 3162 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
| 3163 if (plist == NULL) | |
| 3164 return; | |
| 3165 | |
| 3166 SystemProperty* new_p = new SystemProperty(k, v, true); | |
| 3167 PropertyList_add(plist, new_p); | |
| 3168 } | |
| 3169 | |
| 3170 // This add maintains unique property key in the list. | |
| 691 | 3171 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
| 0 | 3172 if (plist == NULL) |
| 3173 return; | |
| 3174 | |
| 3175 // If property key exist then update with new value. | |
| 3176 SystemProperty* prop; | |
| 3177 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
| 3178 if (strcmp(k, prop->key()) == 0) { | |
| 691 | 3179 if (append) { |
| 3180 prop->append_value(v); | |
| 3181 } else { | |
| 3182 prop->set_value(v); | |
| 3183 } | |
| 0 | 3184 return; |
| 3185 } | |
| 3186 } | |
| 3187 | |
| 3188 PropertyList_add(plist, k, v); | |
| 3189 } | |
| 3190 | |
| 3191 #ifdef KERNEL | |
| 3192 char *Arguments::get_kernel_properties() { | |
| 3193 // Find properties starting with kernel and append them to string | |
| 3194 // We need to find out how long they are first because the URL's that they | |
| 3195 // might point to could get long. | |
| 3196 int length = 0; | |
| 3197 SystemProperty* prop; | |
| 3198 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3199 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3200 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
| 3201 } | |
| 3202 } | |
| 3203 // Add one for null terminator. | |
| 3204 char *props = AllocateHeap(length + 1, "get_kernel_properties"); | |
| 3205 if (length != 0) { | |
| 3206 int pos = 0; | |
| 3207 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3208 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3209 jio_snprintf(&props[pos], length-pos, | |
| 3210 "-D%s=%s ", prop->key(), prop->value()); | |
| 3211 pos = strlen(props); | |
| 3212 } | |
| 3213 } | |
| 3214 } | |
| 3215 // null terminate props in case of null | |
| 3216 props[length] = '\0'; | |
| 3217 return props; | |
| 3218 } | |
| 3219 #endif // KERNEL | |
| 3220 | |
| 3221 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
| 3222 // Returns true if all of the source pointed by src has been copied over to | |
| 3223 // the destination buffer pointed by buf. Otherwise, returns false. | |
| 3224 // Notes: | |
| 3225 // 1. If the length (buflen) of the destination buffer excluding the | |
| 3226 // NULL terminator character is not long enough for holding the expanded | |
| 3227 // pid characters, it also returns false instead of returning the partially | |
| 3228 // expanded one. | |
| 3229 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
| 3230 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
| 3231 char* buf, size_t buflen) { | |
| 3232 const char* p = src; | |
| 3233 char* b = buf; | |
| 3234 const char* src_end = &src[srclen]; | |
| 3235 char* buf_end = &buf[buflen - 1]; | |
| 3236 | |
| 3237 while (p < src_end && b < buf_end) { | |
| 3238 if (*p == '%') { | |
| 3239 switch (*(++p)) { | |
| 3240 case '%': // "%%" ==> "%" | |
| 3241 *b++ = *p++; | |
| 3242 break; | |
| 3243 case 'p': { // "%p" ==> current process id | |
| 3244 // buf_end points to the character before the last character so | |
| 3245 // that we could write '\0' to the end of the buffer. | |
| 3246 size_t buf_sz = buf_end - b + 1; | |
| 3247 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
| 3248 | |
| 3249 // if jio_snprintf fails or the buffer is not long enough to hold | |
| 3250 // the expanded pid, returns false. | |
| 3251 if (ret < 0 || ret >= (int)buf_sz) { | |
| 3252 return false; | |
| 3253 } else { | |
| 3254 b += ret; | |
| 3255 assert(*b == '\0', "fail in copy_expand_pid"); | |
| 3256 if (p == src_end && b == buf_end + 1) { | |
| 3257 // reach the end of the buffer. | |
| 3258 return true; | |
| 3259 } | |
| 3260 } | |
| 3261 p++; | |
| 3262 break; | |
| 3263 } | |
| 3264 default : | |
| 3265 *b++ = '%'; | |
| 3266 } | |
| 3267 } else { | |
| 3268 *b++ = *p++; | |
| 3269 } | |
| 3270 } | |
| 3271 *b = '\0'; | |
| 3272 return (p == src_end); // return false if not all of the source was copied | |
| 3273 } |