| File: | jdk/src/hotspot/share/runtime/arguments.cpp |
| Warning: | line 1204, column 22 Value stored to 'msg_type' during its initialization is never read |
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| 1 | /* |
| 2 | * Copyright (c) 1997, 2021, Oracle and/or its affiliates. All rights reserved. |
| 3 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 | * |
| 5 | * This code is free software; you can redistribute it and/or modify it |
| 6 | * under the terms of the GNU General Public License version 2 only, as |
| 7 | * published by the Free Software Foundation. |
| 8 | * |
| 9 | * This code is distributed in the hope that it will be useful, but WITHOUT |
| 10 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
| 11 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
| 12 | * version 2 for more details (a copy is included in the LICENSE file that |
| 13 | * accompanied this code). |
| 14 | * |
| 15 | * You should have received a copy of the GNU General Public License version |
| 16 | * 2 along with this work; if not, write to the Free Software Foundation, |
| 17 | * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
| 18 | * |
| 19 | * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
| 20 | * or visit www.oracle.com if you need additional information or have any |
| 21 | * questions. |
| 22 | * |
| 23 | */ |
| 24 | |
| 25 | #include "precompiled.hpp" |
| 26 | #include "jvm.h" |
| 27 | #include "cds/filemap.hpp" |
| 28 | #include "classfile/classLoader.hpp" |
| 29 | #include "classfile/javaAssertions.hpp" |
| 30 | #include "classfile/moduleEntry.hpp" |
| 31 | #include "classfile/stringTable.hpp" |
| 32 | #include "classfile/symbolTable.hpp" |
| 33 | #include "compiler/compilerDefinitions.hpp" |
| 34 | #include "gc/shared/gcArguments.hpp" |
| 35 | #include "gc/shared/gcConfig.hpp" |
| 36 | #include "gc/shared/stringdedup/stringDedup.hpp" |
| 37 | #include "gc/shared/tlab_globals.hpp" |
| 38 | #include "logging/log.hpp" |
| 39 | #include "logging/logConfiguration.hpp" |
| 40 | #include "logging/logStream.hpp" |
| 41 | #include "logging/logTag.hpp" |
| 42 | #include "memory/allocation.inline.hpp" |
| 43 | #include "oops/instanceKlass.hpp" |
| 44 | #include "oops/oop.inline.hpp" |
| 45 | #include "prims/jvmtiExport.hpp" |
| 46 | #include "runtime/arguments.hpp" |
| 47 | #include "runtime/flags/jvmFlag.hpp" |
| 48 | #include "runtime/flags/jvmFlagAccess.hpp" |
| 49 | #include "runtime/flags/jvmFlagLimit.hpp" |
| 50 | #include "runtime/globals_extension.hpp" |
| 51 | #include "runtime/java.hpp" |
| 52 | #include "runtime/os.hpp" |
| 53 | #include "runtime/safepoint.hpp" |
| 54 | #include "runtime/safepointMechanism.hpp" |
| 55 | #include "runtime/vm_version.hpp" |
| 56 | #include "services/management.hpp" |
| 57 | #include "services/nmtCommon.hpp" |
| 58 | #include "utilities/align.hpp" |
| 59 | #include "utilities/defaultStream.hpp" |
| 60 | #include "utilities/macros.hpp" |
| 61 | #include "utilities/powerOfTwo.hpp" |
| 62 | #include "utilities/stringUtils.hpp" |
| 63 | #if INCLUDE_JFR1 |
| 64 | #include "jfr/jfr.hpp" |
| 65 | #endif |
| 66 | |
| 67 | #define DEFAULT_JAVA_LAUNCHER"generic" "generic" |
| 68 | |
| 69 | char* Arguments::_jvm_flags_file = NULL__null; |
| 70 | char** Arguments::_jvm_flags_array = NULL__null; |
| 71 | int Arguments::_num_jvm_flags = 0; |
| 72 | char** Arguments::_jvm_args_array = NULL__null; |
| 73 | int Arguments::_num_jvm_args = 0; |
| 74 | char* Arguments::_java_command = NULL__null; |
| 75 | SystemProperty* Arguments::_system_properties = NULL__null; |
| 76 | size_t Arguments::_conservative_max_heap_alignment = 0; |
| 77 | Arguments::Mode Arguments::_mode = _mixed; |
| 78 | bool Arguments::_java_compiler = false; |
| 79 | bool Arguments::_xdebug_mode = false; |
| 80 | const char* Arguments::_java_vendor_url_bug = NULL__null; |
| 81 | const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER"generic"; |
| 82 | bool Arguments::_sun_java_launcher_is_altjvm = false; |
| 83 | |
| 84 | // These parameters are reset in method parse_vm_init_args() |
| 85 | bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; |
| 86 | bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; |
| 87 | bool Arguments::_BackgroundCompilation = BackgroundCompilation; |
| 88 | bool Arguments::_ClipInlining = ClipInlining; |
| 89 | size_t Arguments::_default_SharedBaseAddress = SharedBaseAddress; |
| 90 | |
| 91 | bool Arguments::_enable_preview = false; |
| 92 | |
| 93 | char* Arguments::SharedArchivePath = NULL__null; |
| 94 | char* Arguments::SharedDynamicArchivePath = NULL__null; |
| 95 | |
| 96 | LegacyGCLogging Arguments::_legacyGCLogging = { 0, 0 }; |
| 97 | |
| 98 | AgentLibraryList Arguments::_libraryList; |
| 99 | AgentLibraryList Arguments::_agentList; |
| 100 | |
| 101 | // These are not set by the JDK's built-in launchers, but they can be set by |
| 102 | // programs that embed the JVM using JNI_CreateJavaVM. See comments around |
| 103 | // JavaVMOption in jni.h. |
| 104 | abort_hook_t Arguments::_abort_hook = NULL__null; |
| 105 | exit_hook_t Arguments::_exit_hook = NULL__null; |
| 106 | vfprintf_hook_t Arguments::_vfprintf_hook = NULL__null; |
| 107 | |
| 108 | |
| 109 | SystemProperty *Arguments::_sun_boot_library_path = NULL__null; |
| 110 | SystemProperty *Arguments::_java_library_path = NULL__null; |
| 111 | SystemProperty *Arguments::_java_home = NULL__null; |
| 112 | SystemProperty *Arguments::_java_class_path = NULL__null; |
| 113 | SystemProperty *Arguments::_jdk_boot_class_path_append = NULL__null; |
| 114 | SystemProperty *Arguments::_vm_info = NULL__null; |
| 115 | |
| 116 | GrowableArray<ModulePatchPath*> *Arguments::_patch_mod_prefix = NULL__null; |
| 117 | PathString *Arguments::_system_boot_class_path = NULL__null; |
| 118 | bool Arguments::_has_jimage = false; |
| 119 | |
| 120 | char* Arguments::_ext_dirs = NULL__null; |
| 121 | |
| 122 | // True if -Xshare:auto option was specified. |
| 123 | static bool xshare_auto_cmd_line = false; |
| 124 | |
| 125 | bool PathString::set_value(const char *value) { |
| 126 | if (_value != NULL__null) { |
| 127 | FreeHeap(_value); |
| 128 | } |
| 129 | _value = AllocateHeap(strlen(value)+1, mtArguments); |
| 130 | assert(_value != NULL, "Unable to allocate space for new path value")do { if (!(_value != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 130, "assert(" "_value != __null" ") failed", "Unable to allocate space for new path value" ); ::breakpoint(); } } while (0); |
| 131 | if (_value != NULL__null) { |
| 132 | strcpy(_value, value); |
| 133 | } else { |
| 134 | // not able to allocate |
| 135 | return false; |
| 136 | } |
| 137 | return true; |
| 138 | } |
| 139 | |
| 140 | void PathString::append_value(const char *value) { |
| 141 | char *sp; |
| 142 | size_t len = 0; |
| 143 | if (value != NULL__null) { |
| 144 | len = strlen(value); |
| 145 | if (_value != NULL__null) { |
| 146 | len += strlen(_value); |
| 147 | } |
| 148 | sp = AllocateHeap(len+2, mtArguments); |
| 149 | assert(sp != NULL, "Unable to allocate space for new append path value")do { if (!(sp != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 149, "assert(" "sp != __null" ") failed", "Unable to allocate space for new append path value" ); ::breakpoint(); } } while (0); |
| 150 | if (sp != NULL__null) { |
| 151 | if (_value != NULL__null) { |
| 152 | strcpy(sp, _value); |
| 153 | strcat(sp, os::path_separator()); |
| 154 | strcat(sp, value); |
| 155 | FreeHeap(_value); |
| 156 | } else { |
| 157 | strcpy(sp, value); |
| 158 | } |
| 159 | _value = sp; |
| 160 | } |
| 161 | } |
| 162 | } |
| 163 | |
| 164 | PathString::PathString(const char* value) { |
| 165 | if (value == NULL__null) { |
| 166 | _value = NULL__null; |
| 167 | } else { |
| 168 | _value = AllocateHeap(strlen(value)+1, mtArguments); |
| 169 | strcpy(_value, value); |
| 170 | } |
| 171 | } |
| 172 | |
| 173 | PathString::~PathString() { |
| 174 | if (_value != NULL__null) { |
| 175 | FreeHeap(_value); |
| 176 | _value = NULL__null; |
| 177 | } |
| 178 | } |
| 179 | |
| 180 | ModulePatchPath::ModulePatchPath(const char* module_name, const char* path) { |
| 181 | assert(module_name != NULL && path != NULL, "Invalid module name or path value")do { if (!(module_name != __null && path != __null)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 181, "assert(" "module_name != __null && path != __null" ") failed", "Invalid module name or path value"); ::breakpoint (); } } while (0); |
| 182 | size_t len = strlen(module_name) + 1; |
| 183 | _module_name = AllocateHeap(len, mtInternal); |
| 184 | strncpy(_module_name, module_name, len); // copy the trailing null |
| 185 | _path = new PathString(path); |
| 186 | } |
| 187 | |
| 188 | ModulePatchPath::~ModulePatchPath() { |
| 189 | if (_module_name != NULL__null) { |
| 190 | FreeHeap(_module_name); |
| 191 | _module_name = NULL__null; |
| 192 | } |
| 193 | if (_path != NULL__null) { |
| 194 | delete _path; |
| 195 | _path = NULL__null; |
| 196 | } |
| 197 | } |
| 198 | |
| 199 | SystemProperty::SystemProperty(const char* key, const char* value, bool writeable, bool internal) : PathString(value) { |
| 200 | if (key == NULL__null) { |
| 201 | _key = NULL__null; |
| 202 | } else { |
| 203 | _key = AllocateHeap(strlen(key)+1, mtArguments); |
| 204 | strcpy(_key, key); |
| 205 | } |
| 206 | _next = NULL__null; |
| 207 | _internal = internal; |
| 208 | _writeable = writeable; |
| 209 | } |
| 210 | |
| 211 | AgentLibrary::AgentLibrary(const char* name, const char* options, |
| 212 | bool is_absolute_path, void* os_lib, |
| 213 | bool instrument_lib) { |
| 214 | _name = AllocateHeap(strlen(name)+1, mtArguments); |
| 215 | strcpy(_name, name); |
| 216 | if (options == NULL__null) { |
| 217 | _options = NULL__null; |
| 218 | } else { |
| 219 | _options = AllocateHeap(strlen(options)+1, mtArguments); |
| 220 | strcpy(_options, options); |
| 221 | } |
| 222 | _is_absolute_path = is_absolute_path; |
| 223 | _os_lib = os_lib; |
| 224 | _next = NULL__null; |
| 225 | _state = agent_invalid; |
| 226 | _is_static_lib = false; |
| 227 | _is_instrument_lib = instrument_lib; |
| 228 | } |
| 229 | |
| 230 | // Check if head of 'option' matches 'name', and sets 'tail' to the remaining |
| 231 | // part of the option string. |
| 232 | static bool match_option(const JavaVMOption *option, const char* name, |
| 233 | const char** tail) { |
| 234 | size_t len = strlen(name); |
| 235 | if (strncmp(option->optionString, name, len) == 0) { |
| 236 | *tail = option->optionString + len; |
| 237 | return true; |
| 238 | } else { |
| 239 | return false; |
| 240 | } |
| 241 | } |
| 242 | |
| 243 | // Check if 'option' matches 'name'. No "tail" is allowed. |
| 244 | static bool match_option(const JavaVMOption *option, const char* name) { |
| 245 | const char* tail = NULL__null; |
| 246 | bool result = match_option(option, name, &tail); |
| 247 | if (tail != NULL__null && *tail == '\0') { |
| 248 | return result; |
| 249 | } else { |
| 250 | return false; |
| 251 | } |
| 252 | } |
| 253 | |
| 254 | // Return true if any of the strings in null-terminated array 'names' matches. |
| 255 | // If tail_allowed is true, then the tail must begin with a colon; otherwise, |
| 256 | // the option must match exactly. |
| 257 | static bool match_option(const JavaVMOption* option, const char** names, const char** tail, |
| 258 | bool tail_allowed) { |
| 259 | for (/* empty */; *names != NULL__null; ++names) { |
| 260 | if (match_option(option, *names, tail)) { |
| 261 | if (**tail == '\0' || (tail_allowed && **tail == ':')) { |
| 262 | return true; |
| 263 | } |
| 264 | } |
| 265 | } |
| 266 | return false; |
| 267 | } |
| 268 | |
| 269 | #if INCLUDE_JFR1 |
| 270 | static bool _has_jfr_option = false; // is using JFR |
| 271 | |
| 272 | // return true on failure |
| 273 | static bool match_jfr_option(const JavaVMOption** option) { |
| 274 | assert((*option)->optionString != NULL, "invariant")do { if (!((*option)->optionString != __null)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 274, "assert(" "(*option)->optionString != __null" ") failed" , "invariant"); ::breakpoint(); } } while (0); |
| 275 | char* tail = NULL__null; |
| 276 | if (match_option(*option, "-XX:StartFlightRecording", (const char**)&tail)) { |
| 277 | _has_jfr_option = true; |
| 278 | return Jfr::on_start_flight_recording_option(option, tail); |
| 279 | } else if (match_option(*option, "-XX:FlightRecorderOptions", (const char**)&tail)) { |
| 280 | _has_jfr_option = true; |
| 281 | return Jfr::on_flight_recorder_option(option, tail); |
| 282 | } |
| 283 | return false; |
| 284 | } |
| 285 | |
| 286 | bool Arguments::has_jfr_option() { |
| 287 | return _has_jfr_option; |
| 288 | } |
| 289 | #endif |
| 290 | |
| 291 | static void logOption(const char* opt) { |
| 292 | if (PrintVMOptions) { |
| 293 | jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); |
| 294 | } |
| 295 | } |
| 296 | |
| 297 | bool needs_module_property_warning = false; |
| 298 | |
| 299 | #define MODULE_PROPERTY_PREFIX"jdk.module." "jdk.module." |
| 300 | #define MODULE_PROPERTY_PREFIX_LEN11 11 |
| 301 | #define ADDEXPORTS"addexports" "addexports" |
| 302 | #define ADDEXPORTS_LEN10 10 |
| 303 | #define ADDREADS"addreads" "addreads" |
| 304 | #define ADDREADS_LEN8 8 |
| 305 | #define ADDOPENS"addopens" "addopens" |
| 306 | #define ADDOPENS_LEN8 8 |
| 307 | #define PATCH"patch" "patch" |
| 308 | #define PATCH_LEN5 5 |
| 309 | #define ADDMODS"addmods" "addmods" |
| 310 | #define ADDMODS_LEN7 7 |
| 311 | #define LIMITMODS"limitmods" "limitmods" |
| 312 | #define LIMITMODS_LEN9 9 |
| 313 | #define PATH"path" "path" |
| 314 | #define PATH_LEN4 4 |
| 315 | #define UPGRADE_PATH"upgrade.path" "upgrade.path" |
| 316 | #define UPGRADE_PATH_LEN12 12 |
| 317 | #define ENABLE_NATIVE_ACCESS"enable.native.access" "enable.native.access" |
| 318 | #define ENABLE_NATIVE_ACCESS_LEN20 20 |
| 319 | |
| 320 | void Arguments::add_init_library(const char* name, char* options) { |
| 321 | _libraryList.add(new AgentLibrary(name, options, false, NULL__null)); |
| 322 | } |
| 323 | |
| 324 | void Arguments::add_init_agent(const char* name, char* options, bool absolute_path) { |
| 325 | _agentList.add(new AgentLibrary(name, options, absolute_path, NULL__null)); |
| 326 | } |
| 327 | |
| 328 | void Arguments::add_instrument_agent(const char* name, char* options, bool absolute_path) { |
| 329 | _agentList.add(new AgentLibrary(name, options, absolute_path, NULL__null, true)); |
| 330 | } |
| 331 | |
| 332 | // Late-binding agents not started via arguments |
| 333 | void Arguments::add_loaded_agent(AgentLibrary *agentLib) { |
| 334 | _agentList.add(agentLib); |
| 335 | } |
| 336 | |
| 337 | // Return TRUE if option matches 'property', or 'property=', or 'property.'. |
| 338 | static bool matches_property_suffix(const char* option, const char* property, size_t len) { |
| 339 | return ((strncmp(option, property, len) == 0) && |
| 340 | (option[len] == '=' || option[len] == '.' || option[len] == '\0')); |
| 341 | } |
| 342 | |
| 343 | // Return true if property starts with "jdk.module." and its ensuing chars match |
| 344 | // any of the reserved module properties. |
| 345 | // property should be passed without the leading "-D". |
| 346 | bool Arguments::is_internal_module_property(const char* property) { |
| 347 | assert((strncmp(property, "-D", 2) != 0), "Unexpected leading -D")do { if (!((strncmp(property, "-D", 2) != 0))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 347, "assert(" "(strncmp(property, \"-D\", 2) != 0)" ") failed" , "Unexpected leading -D"); ::breakpoint(); } } while (0); |
| 348 | if (strncmp(property, MODULE_PROPERTY_PREFIX"jdk.module.", MODULE_PROPERTY_PREFIX_LEN11) == 0) { |
| 349 | const char* property_suffix = property + MODULE_PROPERTY_PREFIX_LEN11; |
| 350 | if (matches_property_suffix(property_suffix, ADDEXPORTS"addexports", ADDEXPORTS_LEN10) || |
| 351 | matches_property_suffix(property_suffix, ADDREADS"addreads", ADDREADS_LEN8) || |
| 352 | matches_property_suffix(property_suffix, ADDOPENS"addopens", ADDOPENS_LEN8) || |
| 353 | matches_property_suffix(property_suffix, PATCH"patch", PATCH_LEN5) || |
| 354 | matches_property_suffix(property_suffix, ADDMODS"addmods", ADDMODS_LEN7) || |
| 355 | matches_property_suffix(property_suffix, LIMITMODS"limitmods", LIMITMODS_LEN9) || |
| 356 | matches_property_suffix(property_suffix, PATH"path", PATH_LEN4) || |
| 357 | matches_property_suffix(property_suffix, UPGRADE_PATH"upgrade.path", UPGRADE_PATH_LEN12) || |
| 358 | matches_property_suffix(property_suffix, ENABLE_NATIVE_ACCESS"enable.native.access", ENABLE_NATIVE_ACCESS_LEN20)) { |
| 359 | return true; |
| 360 | } |
| 361 | } |
| 362 | return false; |
| 363 | } |
| 364 | |
| 365 | // Process java launcher properties. |
| 366 | void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { |
| 367 | // See if sun.java.launcher or sun.java.launcher.is_altjvm is defined. |
| 368 | // Must do this before setting up other system properties, |
| 369 | // as some of them may depend on launcher type. |
| 370 | for (int index = 0; index < args->nOptions; index++) { |
| 371 | const JavaVMOption* option = args->options + index; |
| 372 | const char* tail; |
| 373 | |
| 374 | if (match_option(option, "-Dsun.java.launcher=", &tail)) { |
| 375 | process_java_launcher_argument(tail, option->extraInfo); |
| 376 | continue; |
| 377 | } |
| 378 | if (match_option(option, "-Dsun.java.launcher.is_altjvm=", &tail)) { |
| 379 | if (strcmp(tail, "true") == 0) { |
| 380 | _sun_java_launcher_is_altjvm = true; |
| 381 | } |
| 382 | continue; |
| 383 | } |
| 384 | } |
| 385 | } |
| 386 | |
| 387 | // Initialize system properties key and value. |
| 388 | void Arguments::init_system_properties() { |
| 389 | |
| 390 | // Set up _system_boot_class_path which is not a property but |
| 391 | // relies heavily on argument processing and the jdk.boot.class.path.append |
| 392 | // property. It is used to store the underlying system boot class path. |
| 393 | _system_boot_class_path = new PathString(NULL__null); |
| 394 | |
| 395 | PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", |
| 396 | "Java Virtual Machine Specification", false)); |
| 397 | PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); |
| 398 | PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); |
| 399 | PropertyList_add(&_system_properties, new SystemProperty("jdk.debug", VM_Version::jdk_debug_level(), false)); |
| 400 | |
| 401 | // Initialize the vm.info now, but it will need updating after argument parsing. |
| 402 | _vm_info = new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true); |
| 403 | |
| 404 | // Following are JVMTI agent writable properties. |
| 405 | // Properties values are set to NULL and they are |
| 406 | // os specific they are initialized in os::init_system_properties_values(). |
| 407 | _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL__null, true); |
| 408 | _java_library_path = new SystemProperty("java.library.path", NULL__null, true); |
| 409 | _java_home = new SystemProperty("java.home", NULL__null, true); |
| 410 | _java_class_path = new SystemProperty("java.class.path", "", true); |
| 411 | // jdk.boot.class.path.append is a non-writeable, internal property. |
| 412 | // It can only be set by either: |
| 413 | // - -Xbootclasspath/a: |
| 414 | // - AddToBootstrapClassLoaderSearch during JVMTI OnLoad phase |
| 415 | _jdk_boot_class_path_append = new SystemProperty("jdk.boot.class.path.append", "", false, true); |
| 416 | |
| 417 | // Add to System Property list. |
| 418 | PropertyList_add(&_system_properties, _sun_boot_library_path); |
| 419 | PropertyList_add(&_system_properties, _java_library_path); |
| 420 | PropertyList_add(&_system_properties, _java_home); |
| 421 | PropertyList_add(&_system_properties, _java_class_path); |
| 422 | PropertyList_add(&_system_properties, _jdk_boot_class_path_append); |
| 423 | PropertyList_add(&_system_properties, _vm_info); |
| 424 | |
| 425 | // Set OS specific system properties values |
| 426 | os::init_system_properties_values(); |
| 427 | } |
| 428 | |
| 429 | // Update/Initialize System properties after JDK version number is known |
| 430 | void Arguments::init_version_specific_system_properties() { |
| 431 | enum { bufsz = 16 }; |
| 432 | char buffer[bufsz]; |
| 433 | const char* spec_vendor = "Oracle Corporation"; |
| 434 | uint32_t spec_version = JDK_Version::current().major_version(); |
| 435 | |
| 436 | jio_snprintf(buffer, bufsz, UINT32_FORMAT"%" "u", spec_version); |
| 437 | |
| 438 | PropertyList_add(&_system_properties, |
| 439 | new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
| 440 | PropertyList_add(&_system_properties, |
| 441 | new SystemProperty("java.vm.specification.version", buffer, false)); |
| 442 | PropertyList_add(&_system_properties, |
| 443 | new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
| 444 | } |
| 445 | |
| 446 | /* |
| 447 | * -XX argument processing: |
| 448 | * |
| 449 | * -XX arguments are defined in several places, such as: |
| 450 | * globals.hpp, globals_<cpu>.hpp, globals_<os>.hpp, <compiler>_globals.hpp, or <gc>_globals.hpp. |
| 451 | * -XX arguments are parsed in parse_argument(). |
| 452 | * -XX argument bounds checking is done in check_vm_args_consistency(). |
| 453 | * |
| 454 | * Over time -XX arguments may change. There are mechanisms to handle common cases: |
| 455 | * |
| 456 | * ALIASED: An option that is simply another name for another option. This is often |
| 457 | * part of the process of deprecating a flag, but not all aliases need |
| 458 | * to be deprecated. |
| 459 | * |
| 460 | * Create an alias for an option by adding the old and new option names to the |
| 461 | * "aliased_jvm_flags" table. Delete the old variable from globals.hpp (etc). |
| 462 | * |
| 463 | * DEPRECATED: An option that is supported, but a warning is printed to let the user know that |
| 464 | * support may be removed in the future. Both regular and aliased options may be |
| 465 | * deprecated. |
| 466 | * |
| 467 | * Add a deprecation warning for an option (or alias) by adding an entry in the |
| 468 | * "special_jvm_flags" table and setting the "deprecated_in" field. |
| 469 | * Often an option "deprecated" in one major release will |
| 470 | * be made "obsolete" in the next. In this case the entry should also have its |
| 471 | * "obsolete_in" field set. |
| 472 | * |
| 473 | * OBSOLETE: An option that has been removed (and deleted from globals.hpp), but is still accepted |
| 474 | * on the command line. A warning is printed to let the user know that option might not |
| 475 | * be accepted in the future. |
| 476 | * |
| 477 | * Add an obsolete warning for an option by adding an entry in the "special_jvm_flags" |
| 478 | * table and setting the "obsolete_in" field. |
| 479 | * |
| 480 | * EXPIRED: A deprecated or obsolete option that has an "accept_until" version less than or equal |
| 481 | * to the current JDK version. The system will flatly refuse to admit the existence of |
| 482 | * the flag. This allows a flag to die automatically over JDK releases. |
| 483 | * |
| 484 | * Note that manual cleanup of expired options should be done at major JDK version upgrades: |
| 485 | * - Newly expired options should be removed from the special_jvm_flags and aliased_jvm_flags tables. |
| 486 | * - Newly obsolete or expired deprecated options should have their global variable |
| 487 | * definitions removed (from globals.hpp, etc) and related implementations removed. |
| 488 | * |
| 489 | * Recommended approach for removing options: |
| 490 | * |
| 491 | * To remove options commonly used by customers (e.g. product -XX options), use |
| 492 | * the 3-step model adding major release numbers to the deprecate, obsolete and expire columns. |
| 493 | * |
| 494 | * To remove internal options (e.g. diagnostic, experimental, develop options), use |
| 495 | * a 2-step model adding major release numbers to the obsolete and expire columns. |
| 496 | * |
| 497 | * To change the name of an option, use the alias table as well as a 2-step |
| 498 | * model adding major release numbers to the deprecate and expire columns. |
| 499 | * Think twice about aliasing commonly used customer options. |
| 500 | * |
| 501 | * There are times when it is appropriate to leave a future release number as undefined. |
| 502 | * |
| 503 | * Tests: Aliases should be tested in VMAliasOptions.java. |
| 504 | * Deprecated options should be tested in VMDeprecatedOptions.java. |
| 505 | */ |
| 506 | |
| 507 | // The special_jvm_flags table declares options that are being deprecated and/or obsoleted. The |
| 508 | // "deprecated_in" or "obsolete_in" fields may be set to "undefined", but not both. |
| 509 | // When the JDK version reaches 'deprecated_in' limit, the JVM will process this flag on |
| 510 | // the command-line as usual, but will issue a warning. |
| 511 | // When the JDK version reaches 'obsolete_in' limit, the JVM will continue accepting this flag on |
| 512 | // the command-line, while issuing a warning and ignoring the flag value. |
| 513 | // Once the JDK version reaches 'expired_in' limit, the JVM will flatly refuse to admit the |
| 514 | // existence of the flag. |
| 515 | // |
| 516 | // MANUAL CLEANUP ON JDK VERSION UPDATES: |
| 517 | // This table ensures that the handling of options will update automatically when the JDK |
| 518 | // version is incremented, but the source code needs to be cleanup up manually: |
| 519 | // - As "deprecated" options age into "obsolete" or "expired" options, the associated "globals" |
| 520 | // variable should be removed, as well as users of the variable. |
| 521 | // - As "deprecated" options age into "obsolete" options, move the entry into the |
| 522 | // "Obsolete Flags" section of the table. |
| 523 | // - All expired options should be removed from the table. |
| 524 | static SpecialFlag const special_jvm_flags[] = { |
| 525 | // -------------- Deprecated Flags -------------- |
| 526 | // --- Non-alias flags - sorted by obsolete_in then expired_in: |
| 527 | { "MaxGCMinorPauseMillis", JDK_Version::jdk(8), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 528 | { "MaxRAMFraction", JDK_Version::jdk(10), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 529 | { "MinRAMFraction", JDK_Version::jdk(10), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 530 | { "InitialRAMFraction", JDK_Version::jdk(10), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 531 | { "AllowRedefinitionToAddDeleteMethods", JDK_Version::jdk(13), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 532 | { "FlightRecorder", JDK_Version::jdk(13), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 533 | { "FilterSpuriousWakeups", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::jdk(20) }, |
| 534 | { "MinInliningThreshold", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::jdk(20) }, |
| 535 | { "DumpSharedSpaces", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() }, |
| 536 | { "DynamicDumpSharedSpaces", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() }, |
| 537 | { "RequireSharedSpaces", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() }, |
| 538 | { "UseSharedSpaces", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::undefined() }, |
| 539 | #ifdef PRODUCT |
| 540 | { "UseHeavyMonitors", JDK_Version::jdk(18), JDK_Version::jdk(19), JDK_Version::jdk(20) }, |
| 541 | #endif |
| 542 | |
| 543 | // --- Deprecated alias flags (see also aliased_jvm_flags) - sorted by obsolete_in then expired_in: |
| 544 | { "DefaultMaxRAMFraction", JDK_Version::jdk(8), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 545 | { "CreateMinidumpOnCrash", JDK_Version::jdk(9), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 546 | { "TLABStats", JDK_Version::jdk(12), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 547 | |
| 548 | // -------------- Obsolete Flags - sorted by expired_in -------------- |
| 549 | |
| 550 | #ifdef ASSERT1 |
| 551 | { "DummyObsoleteTestFlag", JDK_Version::undefined(), JDK_Version::jdk(18), JDK_Version::undefined() }, |
| 552 | #endif |
| 553 | |
| 554 | #ifdef TEST_VERIFY_SPECIAL_JVM_FLAGS |
| 555 | // These entries will generate build errors. Their purpose is to test the macros. |
| 556 | { "dep > obs", JDK_Version::jdk(9), JDK_Version::jdk(8), JDK_Version::undefined() }, |
| 557 | { "dep > exp ", JDK_Version::jdk(9), JDK_Version::undefined(), JDK_Version::jdk(8) }, |
| 558 | { "obs > exp ", JDK_Version::undefined(), JDK_Version::jdk(9), JDK_Version::jdk(8) }, |
| 559 | { "obs > exp", JDK_Version::jdk(8), JDK_Version::undefined(), JDK_Version::jdk(10) }, |
| 560 | { "not deprecated or obsolete", JDK_Version::undefined(), JDK_Version::undefined(), JDK_Version::jdk(9) }, |
| 561 | { "dup option", JDK_Version::jdk(9), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 562 | { "dup option", JDK_Version::jdk(9), JDK_Version::undefined(), JDK_Version::undefined() }, |
| 563 | #endif |
| 564 | |
| 565 | { NULL__null, JDK_Version(0), JDK_Version(0) } |
| 566 | }; |
| 567 | |
| 568 | // Flags that are aliases for other flags. |
| 569 | typedef struct { |
| 570 | const char* alias_name; |
| 571 | const char* real_name; |
| 572 | } AliasedFlag; |
| 573 | |
| 574 | static AliasedFlag const aliased_jvm_flags[] = { |
| 575 | { "DefaultMaxRAMFraction", "MaxRAMFraction" }, |
| 576 | { "CreateMinidumpOnCrash", "CreateCoredumpOnCrash" }, |
| 577 | { NULL__null, NULL__null} |
| 578 | }; |
| 579 | |
| 580 | // Return true if "v" is less than "other", where "other" may be "undefined". |
| 581 | static bool version_less_than(JDK_Version v, JDK_Version other) { |
| 582 | assert(!v.is_undefined(), "must be defined")do { if (!(!v.is_undefined())) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 582, "assert(" "!v.is_undefined()" ") failed", "must be defined" ); ::breakpoint(); } } while (0); |
| 583 | if (!other.is_undefined() && v.compare(other) >= 0) { |
| 584 | return false; |
| 585 | } else { |
| 586 | return true; |
| 587 | } |
| 588 | } |
| 589 | |
| 590 | static bool lookup_special_flag(const char *flag_name, SpecialFlag& flag) { |
| 591 | for (size_t i = 0; special_jvm_flags[i].name != NULL__null; i++) { |
| 592 | if ((strcmp(special_jvm_flags[i].name, flag_name) == 0)) { |
| 593 | flag = special_jvm_flags[i]; |
| 594 | return true; |
| 595 | } |
| 596 | } |
| 597 | return false; |
| 598 | } |
| 599 | |
| 600 | bool Arguments::is_obsolete_flag(const char *flag_name, JDK_Version* version) { |
| 601 | assert(version != NULL, "Must provide a version buffer")do { if (!(version != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 601, "assert(" "version != __null" ") failed", "Must provide a version buffer" ); ::breakpoint(); } } while (0); |
| 602 | SpecialFlag flag; |
| 603 | if (lookup_special_flag(flag_name, flag)) { |
| 604 | if (!flag.obsolete_in.is_undefined()) { |
| 605 | if (!version_less_than(JDK_Version::current(), flag.obsolete_in)) { |
| 606 | *version = flag.obsolete_in; |
| 607 | // This flag may have been marked for obsoletion in this version, but we may not |
| 608 | // have actually removed it yet. Rather than ignoring it as soon as we reach |
| 609 | // this version we allow some time for the removal to happen. So if the flag |
| 610 | // still actually exists we process it as normal, but issue an adjusted warning. |
| 611 | const JVMFlag *real_flag = JVMFlag::find_declared_flag(flag_name); |
| 612 | if (real_flag != NULL__null) { |
| 613 | char version_str[256]; |
| 614 | version->to_string(version_str, sizeof(version_str)); |
| 615 | warning("Temporarily processing option %s; support is scheduled for removal in %s", |
| 616 | flag_name, version_str); |
| 617 | return false; |
| 618 | } |
| 619 | return true; |
| 620 | } |
| 621 | } |
| 622 | } |
| 623 | return false; |
| 624 | } |
| 625 | |
| 626 | int Arguments::is_deprecated_flag(const char *flag_name, JDK_Version* version) { |
| 627 | assert(version != NULL, "Must provide a version buffer")do { if (!(version != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 627, "assert(" "version != __null" ") failed", "Must provide a version buffer" ); ::breakpoint(); } } while (0); |
| 628 | SpecialFlag flag; |
| 629 | if (lookup_special_flag(flag_name, flag)) { |
| 630 | if (!flag.deprecated_in.is_undefined()) { |
| 631 | if (version_less_than(JDK_Version::current(), flag.obsolete_in) && |
| 632 | version_less_than(JDK_Version::current(), flag.expired_in)) { |
| 633 | *version = flag.deprecated_in; |
| 634 | return 1; |
| 635 | } else { |
| 636 | return -1; |
| 637 | } |
| 638 | } |
| 639 | } |
| 640 | return 0; |
| 641 | } |
| 642 | |
| 643 | const char* Arguments::real_flag_name(const char *flag_name) { |
| 644 | for (size_t i = 0; aliased_jvm_flags[i].alias_name != NULL__null; i++) { |
| 645 | const AliasedFlag& flag_status = aliased_jvm_flags[i]; |
| 646 | if (strcmp(flag_status.alias_name, flag_name) == 0) { |
| 647 | return flag_status.real_name; |
| 648 | } |
| 649 | } |
| 650 | return flag_name; |
| 651 | } |
| 652 | |
| 653 | #ifdef ASSERT1 |
| 654 | static bool lookup_special_flag(const char *flag_name, size_t skip_index) { |
| 655 | for (size_t i = 0; special_jvm_flags[i].name != NULL__null; i++) { |
| 656 | if ((i != skip_index) && (strcmp(special_jvm_flags[i].name, flag_name) == 0)) { |
| 657 | return true; |
| 658 | } |
| 659 | } |
| 660 | return false; |
| 661 | } |
| 662 | |
| 663 | // Verifies the correctness of the entries in the special_jvm_flags table. |
| 664 | // If there is a semantic error (i.e. a bug in the table) such as the obsoletion |
| 665 | // version being earlier than the deprecation version, then a warning is issued |
| 666 | // and verification fails - by returning false. If it is detected that the table |
| 667 | // is out of date, with respect to the current version, then ideally a warning is |
| 668 | // issued but verification does not fail. This allows the VM to operate when the |
| 669 | // version is first updated, without needing to update all the impacted flags at |
| 670 | // the same time. In practice we can't issue the warning immediately when the version |
| 671 | // is updated as it occurs for every test and some tests are not prepared to handle |
| 672 | // unexpected output - see 8196739. Instead we only check if the table is up-to-date |
| 673 | // if the check_globals flag is true, and in addition allow a grace period and only |
| 674 | // check for stale flags when we hit build 25 (which is far enough into the 6 month |
| 675 | // release cycle that all flag updates should have been processed, whilst still |
| 676 | // leaving time to make the change before RDP2). |
| 677 | // We use a gtest to call this, passing true, so that we can detect stale flags before |
| 678 | // the end of the release cycle. |
| 679 | |
| 680 | static const int SPECIAL_FLAG_VALIDATION_BUILD = 25; |
| 681 | |
| 682 | bool Arguments::verify_special_jvm_flags(bool check_globals) { |
| 683 | bool success = true; |
| 684 | for (size_t i = 0; special_jvm_flags[i].name != NULL__null; i++) { |
| 685 | const SpecialFlag& flag = special_jvm_flags[i]; |
| 686 | if (lookup_special_flag(flag.name, i)) { |
| 687 | warning("Duplicate special flag declaration \"%s\"", flag.name); |
| 688 | success = false; |
| 689 | } |
| 690 | if (flag.deprecated_in.is_undefined() && |
| 691 | flag.obsolete_in.is_undefined()) { |
| 692 | warning("Special flag entry \"%s\" must declare version deprecated and/or obsoleted in.", flag.name); |
| 693 | success = false; |
| 694 | } |
| 695 | |
| 696 | if (!flag.deprecated_in.is_undefined()) { |
| 697 | if (!version_less_than(flag.deprecated_in, flag.obsolete_in)) { |
| 698 | warning("Special flag entry \"%s\" must be deprecated before obsoleted.", flag.name); |
| 699 | success = false; |
| 700 | } |
| 701 | |
| 702 | if (!version_less_than(flag.deprecated_in, flag.expired_in)) { |
| 703 | warning("Special flag entry \"%s\" must be deprecated before expired.", flag.name); |
| 704 | success = false; |
| 705 | } |
| 706 | } |
| 707 | |
| 708 | if (!flag.obsolete_in.is_undefined()) { |
| 709 | if (!version_less_than(flag.obsolete_in, flag.expired_in)) { |
| 710 | warning("Special flag entry \"%s\" must be obsoleted before expired.", flag.name); |
| 711 | success = false; |
| 712 | } |
| 713 | |
| 714 | // if flag has become obsolete it should not have a "globals" flag defined anymore. |
| 715 | if (check_globals && VM_Version::vm_build_number() >= SPECIAL_FLAG_VALIDATION_BUILD && |
| 716 | !version_less_than(JDK_Version::current(), flag.obsolete_in)) { |
| 717 | if (JVMFlag::find_declared_flag(flag.name) != NULL__null) { |
| 718 | warning("Global variable for obsolete special flag entry \"%s\" should be removed", flag.name); |
| 719 | success = false; |
| 720 | } |
| 721 | } |
| 722 | |
| 723 | } else if (!flag.expired_in.is_undefined()) { |
| 724 | warning("Special flag entry \"%s\" must be explicitly obsoleted before expired.", flag.name); |
| 725 | success = false; |
| 726 | } |
| 727 | |
| 728 | if (!flag.expired_in.is_undefined()) { |
| 729 | // if flag has become expired it should not have a "globals" flag defined anymore. |
| 730 | if (check_globals && VM_Version::vm_build_number() >= SPECIAL_FLAG_VALIDATION_BUILD && |
| 731 | !version_less_than(JDK_Version::current(), flag.expired_in)) { |
| 732 | if (JVMFlag::find_declared_flag(flag.name) != NULL__null) { |
| 733 | warning("Global variable for expired flag entry \"%s\" should be removed", flag.name); |
| 734 | success = false; |
| 735 | } |
| 736 | } |
| 737 | } |
| 738 | } |
| 739 | return success; |
| 740 | } |
| 741 | #endif |
| 742 | |
| 743 | // Parses a size specification string. |
| 744 | bool Arguments::atojulong(const char *s, julong* result) { |
| 745 | julong n = 0; |
| 746 | |
| 747 | // First char must be a digit. Don't allow negative numbers or leading spaces. |
| 748 | if (!isdigit(*s)) { |
| 749 | return false; |
| 750 | } |
| 751 | |
| 752 | bool is_hex = (s[0] == '0' && (s[1] == 'x' || s[1] == 'X')); |
| 753 | char* remainder; |
| 754 | errno(*__errno_location ()) = 0; |
| 755 | n = strtoull(s, &remainder, (is_hex ? 16 : 10)); |
| 756 | if (errno(*__errno_location ()) != 0) { |
| 757 | return false; |
| 758 | } |
| 759 | |
| 760 | // Fail if no number was read at all or if the remainder contains more than a single non-digit character. |
| 761 | if (remainder == s || strlen(remainder) > 1) { |
| 762 | return false; |
| 763 | } |
| 764 | |
| 765 | switch (*remainder) { |
| 766 | case 'T': case 't': |
| 767 | *result = n * G * K; |
| 768 | // Check for overflow. |
| 769 | if (*result/((julong)G * K) != n) return false; |
| 770 | return true; |
| 771 | case 'G': case 'g': |
| 772 | *result = n * G; |
| 773 | if (*result/G != n) return false; |
| 774 | return true; |
| 775 | case 'M': case 'm': |
| 776 | *result = n * M; |
| 777 | if (*result/M != n) return false; |
| 778 | return true; |
| 779 | case 'K': case 'k': |
| 780 | *result = n * K; |
| 781 | if (*result/K != n) return false; |
| 782 | return true; |
| 783 | case '\0': |
| 784 | *result = n; |
| 785 | return true; |
| 786 | default: |
| 787 | return false; |
| 788 | } |
| 789 | } |
| 790 | |
| 791 | Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size, julong max_size) { |
| 792 | if (size < min_size) return arg_too_small; |
| 793 | if (size > max_size) return arg_too_big; |
| 794 | return arg_in_range; |
| 795 | } |
| 796 | |
| 797 | // Describe an argument out of range error |
| 798 | void Arguments::describe_range_error(ArgsRange errcode) { |
| 799 | switch(errcode) { |
| 800 | case arg_too_big: |
| 801 | jio_fprintf(defaultStream::error_stream(), |
| 802 | "The specified size exceeds the maximum " |
| 803 | "representable size.\n"); |
| 804 | break; |
| 805 | case arg_too_small: |
| 806 | case arg_unreadable: |
| 807 | case arg_in_range: |
| 808 | // do nothing for now |
| 809 | break; |
| 810 | default: |
| 811 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 811); ::breakpoint(); } while (0); |
| 812 | } |
| 813 | } |
| 814 | |
| 815 | static bool set_bool_flag(JVMFlag* flag, bool value, JVMFlagOrigin origin) { |
| 816 | if (JVMFlagAccess::set_bool(flag, &value, origin) == JVMFlag::SUCCESS) { |
| 817 | return true; |
| 818 | } else { |
| 819 | return false; |
| 820 | } |
| 821 | } |
| 822 | |
| 823 | static bool set_fp_numeric_flag(JVMFlag* flag, char* value, JVMFlagOrigin origin) { |
| 824 | char* end; |
| 825 | errno(*__errno_location ()) = 0; |
| 826 | double v = strtod(value, &end); |
| 827 | if ((errno(*__errno_location ()) != 0) || (*end != 0)) { |
| 828 | return false; |
| 829 | } |
| 830 | |
| 831 | if (JVMFlagAccess::set_double(flag, &v, origin) == JVMFlag::SUCCESS) { |
| 832 | return true; |
| 833 | } |
| 834 | return false; |
| 835 | } |
| 836 | |
| 837 | static bool set_numeric_flag(JVMFlag* flag, char* value, JVMFlagOrigin origin) { |
| 838 | julong v; |
| 839 | int int_v; |
| 840 | intx intx_v; |
| 841 | bool is_neg = false; |
| 842 | |
| 843 | if (flag == NULL__null) { |
| 844 | return false; |
| 845 | } |
| 846 | |
| 847 | // Check the sign first since atojulong() parses only unsigned values. |
| 848 | if (*value == '-') { |
| 849 | if (!flag->is_intx() && !flag->is_int()) { |
| 850 | return false; |
| 851 | } |
| 852 | value++; |
| 853 | is_neg = true; |
| 854 | } |
| 855 | if (!Arguments::atojulong(value, &v)) { |
| 856 | return false; |
| 857 | } |
| 858 | if (flag->is_int()) { |
| 859 | int_v = (int) v; |
| 860 | if (is_neg) { |
| 861 | int_v = -int_v; |
| 862 | } |
| 863 | return JVMFlagAccess::set_int(flag, &int_v, origin) == JVMFlag::SUCCESS; |
| 864 | } else if (flag->is_uint()) { |
| 865 | uint uint_v = (uint) v; |
| 866 | return JVMFlagAccess::set_uint(flag, &uint_v, origin) == JVMFlag::SUCCESS; |
| 867 | } else if (flag->is_intx()) { |
| 868 | intx_v = (intx) v; |
| 869 | if (is_neg) { |
| 870 | intx_v = -intx_v; |
| 871 | } |
| 872 | return JVMFlagAccess::set_intx(flag, &intx_v, origin) == JVMFlag::SUCCESS; |
| 873 | } else if (flag->is_uintx()) { |
| 874 | uintx uintx_v = (uintx) v; |
| 875 | return JVMFlagAccess::set_uintx(flag, &uintx_v, origin) == JVMFlag::SUCCESS; |
| 876 | } else if (flag->is_uint64_t()) { |
| 877 | uint64_t uint64_t_v = (uint64_t) v; |
| 878 | return JVMFlagAccess::set_uint64_t(flag, &uint64_t_v, origin) == JVMFlag::SUCCESS; |
| 879 | } else if (flag->is_size_t()) { |
| 880 | size_t size_t_v = (size_t) v; |
| 881 | return JVMFlagAccess::set_size_t(flag, &size_t_v, origin) == JVMFlag::SUCCESS; |
| 882 | } else if (flag->is_double()) { |
| 883 | double double_v = (double) v; |
| 884 | return JVMFlagAccess::set_double(flag, &double_v, origin) == JVMFlag::SUCCESS; |
| 885 | } else { |
| 886 | return false; |
| 887 | } |
| 888 | } |
| 889 | |
| 890 | static bool set_string_flag(JVMFlag* flag, const char* value, JVMFlagOrigin origin) { |
| 891 | if (JVMFlagAccess::set_ccstr(flag, &value, origin) != JVMFlag::SUCCESS) return false; |
| 892 | // Contract: JVMFlag always returns a pointer that needs freeing. |
| 893 | FREE_C_HEAP_ARRAY(char, value)FreeHeap((char*)(value)); |
| 894 | return true; |
| 895 | } |
| 896 | |
| 897 | static bool append_to_string_flag(JVMFlag* flag, const char* new_value, JVMFlagOrigin origin) { |
| 898 | const char* old_value = ""; |
| 899 | if (JVMFlagAccess::get_ccstr(flag, &old_value) != JVMFlag::SUCCESS) return false; |
| 900 | size_t old_len = old_value != NULL__null ? strlen(old_value) : 0; |
| 901 | size_t new_len = strlen(new_value); |
| 902 | const char* value; |
| 903 | char* free_this_too = NULL__null; |
| 904 | if (old_len == 0) { |
| 905 | value = new_value; |
| 906 | } else if (new_len == 0) { |
| 907 | value = old_value; |
| 908 | } else { |
| 909 | size_t length = old_len + 1 + new_len + 1; |
| 910 | char* buf = NEW_C_HEAP_ARRAY(char, length, mtArguments)(char*) (AllocateHeap((length) * sizeof(char), mtArguments)); |
| 911 | // each new setting adds another LINE to the switch: |
| 912 | jio_snprintf(buf, length, "%s\n%s", old_value, new_value); |
| 913 | value = buf; |
| 914 | free_this_too = buf; |
| 915 | } |
| 916 | (void) JVMFlagAccess::set_ccstr(flag, &value, origin); |
| 917 | // JVMFlag always returns a pointer that needs freeing. |
| 918 | FREE_C_HEAP_ARRAY(char, value)FreeHeap((char*)(value)); |
| 919 | // JVMFlag made its own copy, so I must delete my own temp. buffer. |
| 920 | FREE_C_HEAP_ARRAY(char, free_this_too)FreeHeap((char*)(free_this_too)); |
| 921 | return true; |
| 922 | } |
| 923 | |
| 924 | const char* Arguments::handle_aliases_and_deprecation(const char* arg, bool warn) { |
| 925 | const char* real_name = real_flag_name(arg); |
| 926 | JDK_Version since = JDK_Version(); |
| 927 | switch (is_deprecated_flag(arg, &since)) { |
| 928 | case -1: { |
| 929 | // Obsolete or expired, so don't process normally, |
| 930 | // but allow for an obsolete flag we're still |
| 931 | // temporarily allowing. |
| 932 | if (!is_obsolete_flag(arg, &since)) { |
| 933 | return real_name; |
| 934 | } |
| 935 | // Note if we're not considered obsolete then we can't be expired either |
| 936 | // as obsoletion must come first. |
| 937 | return NULL__null; |
| 938 | } |
| 939 | case 0: |
| 940 | return real_name; |
| 941 | case 1: { |
| 942 | if (warn) { |
| 943 | char version[256]; |
| 944 | since.to_string(version, sizeof(version)); |
| 945 | if (real_name != arg) { |
| 946 | warning("Option %s was deprecated in version %s and will likely be removed in a future release. Use option %s instead.", |
| 947 | arg, version, real_name); |
| 948 | } else { |
| 949 | warning("Option %s was deprecated in version %s and will likely be removed in a future release.", |
| 950 | arg, version); |
| 951 | } |
| 952 | } |
| 953 | return real_name; |
| 954 | } |
| 955 | } |
| 956 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 956); ::breakpoint(); } while (0); |
| 957 | return NULL__null; |
| 958 | } |
| 959 | |
| 960 | bool Arguments::parse_argument(const char* arg, JVMFlagOrigin origin) { |
| 961 | |
| 962 | // range of acceptable characters spelled out for portability reasons |
| 963 | #define NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" |
| 964 | #define BUFLEN255 255 |
| 965 | char name[BUFLEN255+1]; |
| 966 | char dummy; |
| 967 | const char* real_name; |
| 968 | bool warn_if_deprecated = true; |
| 969 | |
| 970 | if (sscanf(arg, "-%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "%c", name, &dummy) == 1) { |
| 971 | real_name = handle_aliases_and_deprecation(name, warn_if_deprecated); |
| 972 | if (real_name == NULL__null) { |
| 973 | return false; |
| 974 | } |
| 975 | JVMFlag* flag = JVMFlag::find_flag(real_name); |
| 976 | return set_bool_flag(flag, false, origin); |
| 977 | } |
| 978 | if (sscanf(arg, "+%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "%c", name, &dummy) == 1) { |
| 979 | real_name = handle_aliases_and_deprecation(name, warn_if_deprecated); |
| 980 | if (real_name == NULL__null) { |
| 981 | return false; |
| 982 | } |
| 983 | JVMFlag* flag = JVMFlag::find_flag(real_name); |
| 984 | return set_bool_flag(flag, true, origin); |
| 985 | } |
| 986 | |
| 987 | char punct; |
| 988 | if (sscanf(arg, "%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "%c", name, &punct) == 2 && punct == '=') { |
| 989 | const char* value = strchr(arg, '=') + 1; |
| 990 | |
| 991 | // this scanf pattern matches both strings (handled here) and numbers (handled later)) |
| 992 | real_name = handle_aliases_and_deprecation(name, warn_if_deprecated); |
| 993 | if (real_name == NULL__null) { |
| 994 | return false; |
| 995 | } |
| 996 | JVMFlag* flag = JVMFlag::find_flag(real_name); |
| 997 | if (flag != NULL__null && flag->is_ccstr()) { |
| 998 | if (flag->ccstr_accumulates()) { |
| 999 | return append_to_string_flag(flag, value, origin); |
| 1000 | } else { |
| 1001 | if (value[0] == '\0') { |
| 1002 | value = NULL__null; |
| 1003 | } |
| 1004 | return set_string_flag(flag, value, origin); |
| 1005 | } |
| 1006 | } else { |
| 1007 | warn_if_deprecated = false; // if arg is deprecated, we've already done warning... |
| 1008 | } |
| 1009 | } |
| 1010 | |
| 1011 | if (sscanf(arg, "%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" ":%c", name, &punct) == 2 && punct == '=') { |
| 1012 | const char* value = strchr(arg, '=') + 1; |
| 1013 | // -XX:Foo:=xxx will reset the string flag to the given value. |
| 1014 | if (value[0] == '\0') { |
| 1015 | value = NULL__null; |
| 1016 | } |
| 1017 | real_name = handle_aliases_and_deprecation(name, warn_if_deprecated); |
| 1018 | if (real_name == NULL__null) { |
| 1019 | return false; |
| 1020 | } |
| 1021 | JVMFlag* flag = JVMFlag::find_flag(real_name); |
| 1022 | return set_string_flag(flag, value, origin); |
| 1023 | } |
| 1024 | |
| 1025 | #define SIGNED_FP_NUMBER_RANGE"[-0123456789.eE+]" "[-0123456789.eE+]" |
| 1026 | #define SIGNED_NUMBER_RANGE"[-0123456789]" "[-0123456789]" |
| 1027 | #define NUMBER_RANGE"[0123456789eE+-]" "[0123456789eE+-]" |
| 1028 | char value[BUFLEN255 + 1]; |
| 1029 | char value2[BUFLEN255 + 1]; |
| 1030 | if (sscanf(arg, "%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "=" "%" XSTR(BUFLEN)"255" SIGNED_NUMBER_RANGE"[-0123456789]" "." "%" XSTR(BUFLEN)"255" NUMBER_RANGE"[0123456789eE+-]" "%c", name, value, value2, &dummy) == 3) { |
| 1031 | // Looks like a floating-point number -- try again with more lenient format string |
| 1032 | if (sscanf(arg, "%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "=" "%" XSTR(BUFLEN)"255" SIGNED_FP_NUMBER_RANGE"[-0123456789.eE+]" "%c", name, value, &dummy) == 2) { |
| 1033 | real_name = handle_aliases_and_deprecation(name, warn_if_deprecated); |
| 1034 | if (real_name == NULL__null) { |
| 1035 | return false; |
| 1036 | } |
| 1037 | JVMFlag* flag = JVMFlag::find_flag(real_name); |
| 1038 | return set_fp_numeric_flag(flag, value, origin); |
| 1039 | } |
| 1040 | } |
| 1041 | |
| 1042 | #define VALUE_RANGE"[-kmgtxKMGTX0123456789abcdefABCDEF]" "[-kmgtxKMGTX0123456789abcdefABCDEF]" |
| 1043 | if (sscanf(arg, "%" XSTR(BUFLEN)"255" NAME_RANGE"[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" "=" "%" XSTR(BUFLEN)"255" VALUE_RANGE"[-kmgtxKMGTX0123456789abcdefABCDEF]" "%c", name, value, &dummy) == 2) { |
| 1044 | real_name = handle_aliases_and_deprecation(name, warn_if_deprecated); |
| 1045 | if (real_name == NULL__null) { |
| 1046 | return false; |
| 1047 | } |
| 1048 | JVMFlag* flag = JVMFlag::find_flag(real_name); |
| 1049 | return set_numeric_flag(flag, value, origin); |
| 1050 | } |
| 1051 | |
| 1052 | return false; |
| 1053 | } |
| 1054 | |
| 1055 | void Arguments::add_string(char*** bldarray, int* count, const char* arg) { |
| 1056 | assert(bldarray != NULL, "illegal argument")do { if (!(bldarray != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1056, "assert(" "bldarray != __null" ") failed", "illegal argument" ); ::breakpoint(); } } while (0); |
| 1057 | |
| 1058 | if (arg == NULL__null) { |
| 1059 | return; |
| 1060 | } |
| 1061 | |
| 1062 | int new_count = *count + 1; |
| 1063 | |
| 1064 | // expand the array and add arg to the last element |
| 1065 | if (*bldarray == NULL__null) { |
| 1066 | *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtArguments)(char**) (AllocateHeap((new_count) * sizeof(char*), mtArguments )); |
| 1067 | } else { |
| 1068 | *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtArguments)(char**) (ReallocateHeap((char*)(*bldarray), (new_count) * sizeof (char*), mtArguments)); |
| 1069 | } |
| 1070 | (*bldarray)[*count] = os::strdup_check_oom(arg); |
| 1071 | *count = new_count; |
| 1072 | } |
| 1073 | |
| 1074 | void Arguments::build_jvm_args(const char* arg) { |
| 1075 | add_string(&_jvm_args_array, &_num_jvm_args, arg); |
| 1076 | } |
| 1077 | |
| 1078 | void Arguments::build_jvm_flags(const char* arg) { |
| 1079 | add_string(&_jvm_flags_array, &_num_jvm_flags, arg); |
| 1080 | } |
| 1081 | |
| 1082 | // utility function to return a string that concatenates all |
| 1083 | // strings in a given char** array |
| 1084 | const char* Arguments::build_resource_string(char** args, int count) { |
| 1085 | if (args == NULL__null || count == 0) { |
| 1086 | return NULL__null; |
| 1087 | } |
| 1088 | size_t length = 0; |
| 1089 | for (int i = 0; i < count; i++) { |
| 1090 | length += strlen(args[i]) + 1; // add 1 for a space or NULL terminating character |
| 1091 | } |
| 1092 | char* s = NEW_RESOURCE_ARRAY(char, length)(char*) resource_allocate_bytes((length) * sizeof(char)); |
| 1093 | char* dst = s; |
| 1094 | for (int j = 0; j < count; j++) { |
| 1095 | size_t offset = strlen(args[j]) + 1; // add 1 for a space or NULL terminating character |
| 1096 | jio_snprintf(dst, length, "%s ", args[j]); // jio_snprintf will replace the last space character with NULL character |
| 1097 | dst += offset; |
| 1098 | length -= offset; |
| 1099 | } |
| 1100 | return (const char*) s; |
| 1101 | } |
| 1102 | |
| 1103 | void Arguments::print_on(outputStream* st) { |
| 1104 | st->print_cr("VM Arguments:"); |
| 1105 | if (num_jvm_flags() > 0) { |
| 1106 | st->print("jvm_flags: "); print_jvm_flags_on(st); |
| 1107 | st->cr(); |
| 1108 | } |
| 1109 | if (num_jvm_args() > 0) { |
| 1110 | st->print("jvm_args: "); print_jvm_args_on(st); |
| 1111 | st->cr(); |
| 1112 | } |
| 1113 | st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); |
| 1114 | if (_java_class_path != NULL__null) { |
| 1115 | char* path = _java_class_path->value(); |
| 1116 | size_t len = strlen(path); |
| 1117 | st->print("java_class_path (initial): "); |
| 1118 | // Avoid using st->print_cr() because path length maybe longer than O_BUFLEN. |
| 1119 | if (len == 0) { |
| 1120 | st->print_raw_cr("<not set>"); |
| 1121 | } else { |
| 1122 | st->print_raw_cr(path, len); |
| 1123 | } |
| 1124 | } |
| 1125 | st->print_cr("Launcher Type: %s", _sun_java_launcher); |
| 1126 | } |
| 1127 | |
| 1128 | void Arguments::print_summary_on(outputStream* st) { |
| 1129 | // Print the command line. Environment variables that are helpful for |
| 1130 | // reproducing the problem are written later in the hs_err file. |
| 1131 | // flags are from setting file |
| 1132 | if (num_jvm_flags() > 0) { |
| 1133 | st->print_raw("Settings File: "); |
| 1134 | print_jvm_flags_on(st); |
| 1135 | st->cr(); |
| 1136 | } |
| 1137 | // args are the command line and environment variable arguments. |
| 1138 | st->print_raw("Command Line: "); |
| 1139 | if (num_jvm_args() > 0) { |
| 1140 | print_jvm_args_on(st); |
| 1141 | } |
| 1142 | // this is the classfile and any arguments to the java program |
| 1143 | if (java_command() != NULL__null) { |
| 1144 | st->print("%s", java_command()); |
| 1145 | } |
| 1146 | st->cr(); |
| 1147 | } |
| 1148 | |
| 1149 | void Arguments::print_jvm_flags_on(outputStream* st) { |
| 1150 | if (_num_jvm_flags > 0) { |
| 1151 | for (int i=0; i < _num_jvm_flags; i++) { |
| 1152 | st->print("%s ", _jvm_flags_array[i]); |
| 1153 | } |
| 1154 | } |
| 1155 | } |
| 1156 | |
| 1157 | void Arguments::print_jvm_args_on(outputStream* st) { |
| 1158 | if (_num_jvm_args > 0) { |
| 1159 | for (int i=0; i < _num_jvm_args; i++) { |
| 1160 | st->print("%s ", _jvm_args_array[i]); |
| 1161 | } |
| 1162 | } |
| 1163 | } |
| 1164 | |
| 1165 | bool Arguments::process_argument(const char* arg, |
| 1166 | jboolean ignore_unrecognized, |
| 1167 | JVMFlagOrigin origin) { |
| 1168 | JDK_Version since = JDK_Version(); |
| 1169 | |
| 1170 | if (parse_argument(arg, origin)) { |
| 1171 | return true; |
| 1172 | } |
| 1173 | |
| 1174 | // Determine if the flag has '+', '-', or '=' characters. |
| 1175 | bool has_plus_minus = (*arg == '+' || *arg == '-'); |
| 1176 | const char* const argname = has_plus_minus ? arg + 1 : arg; |
| 1177 | |
| 1178 | size_t arg_len; |
| 1179 | const char* equal_sign = strchr(argname, '='); |
| 1180 | if (equal_sign == NULL__null) { |
| 1181 | arg_len = strlen(argname); |
| 1182 | } else { |
| 1183 | arg_len = equal_sign - argname; |
| 1184 | } |
| 1185 | |
| 1186 | // Only make the obsolete check for valid arguments. |
| 1187 | if (arg_len <= BUFLEN255) { |
| 1188 | // Construct a string which consists only of the argument name without '+', '-', or '='. |
| 1189 | char stripped_argname[BUFLEN255+1]; // +1 for '\0' |
| 1190 | jio_snprintf(stripped_argname, arg_len+1, "%s", argname); // +1 for '\0' |
| 1191 | if (is_obsolete_flag(stripped_argname, &since)) { |
| 1192 | char version[256]; |
| 1193 | since.to_string(version, sizeof(version)); |
| 1194 | warning("Ignoring option %s; support was removed in %s", stripped_argname, version); |
| 1195 | return true; |
| 1196 | } |
| 1197 | } |
| 1198 | |
| 1199 | // For locked flags, report a custom error message if available. |
| 1200 | // Otherwise, report the standard unrecognized VM option. |
| 1201 | const JVMFlag* found_flag = JVMFlag::find_declared_flag((const char*)argname, arg_len); |
| 1202 | if (found_flag != NULL__null) { |
| 1203 | char locked_message_buf[BUFLEN255]; |
| 1204 | JVMFlag::MsgType msg_type = found_flag->get_locked_message(locked_message_buf, BUFLEN255); |
Value stored to 'msg_type' during its initialization is never read | |
| 1205 | if (strlen(locked_message_buf) == 0) { |
| 1206 | if (found_flag->is_bool() && !has_plus_minus) { |
| 1207 | jio_fprintf(defaultStream::error_stream(), |
| 1208 | "Missing +/- setting for VM option '%s'\n", argname); |
| 1209 | } else if (!found_flag->is_bool() && has_plus_minus) { |
| 1210 | jio_fprintf(defaultStream::error_stream(), |
| 1211 | "Unexpected +/- setting in VM option '%s'\n", argname); |
| 1212 | } else { |
| 1213 | jio_fprintf(defaultStream::error_stream(), |
| 1214 | "Improperly specified VM option '%s'\n", argname); |
| 1215 | } |
| 1216 | } else { |
| 1217 | #ifdef PRODUCT |
| 1218 | bool mismatched = ((msg_type == JVMFlag::NOTPRODUCT_FLAG_BUT_PRODUCT_BUILD) || |
| 1219 | (msg_type == JVMFlag::DEVELOPER_FLAG_BUT_PRODUCT_BUILD)); |
| 1220 | if (ignore_unrecognized && mismatched) { |
| 1221 | return true; |
| 1222 | } |
| 1223 | #endif |
| 1224 | jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
| 1225 | } |
| 1226 | } else { |
| 1227 | if (ignore_unrecognized) { |
| 1228 | return true; |
| 1229 | } |
| 1230 | jio_fprintf(defaultStream::error_stream(), |
| 1231 | "Unrecognized VM option '%s'\n", argname); |
| 1232 | JVMFlag* fuzzy_matched = JVMFlag::fuzzy_match((const char*)argname, arg_len, true); |
| 1233 | if (fuzzy_matched != NULL__null) { |
| 1234 | jio_fprintf(defaultStream::error_stream(), |
| 1235 | "Did you mean '%s%s%s'? ", |
| 1236 | (fuzzy_matched->is_bool()) ? "(+/-)" : "", |
| 1237 | fuzzy_matched->name(), |
| 1238 | (fuzzy_matched->is_bool()) ? "" : "=<value>"); |
| 1239 | } |
| 1240 | } |
| 1241 | |
| 1242 | // allow for commandline "commenting out" options like -XX:#+Verbose |
| 1243 | return arg[0] == '#'; |
| 1244 | } |
| 1245 | |
| 1246 | bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { |
| 1247 | FILE* stream = fopen(file_name, "rb"); |
| 1248 | if (stream == NULL__null) { |
| 1249 | if (should_exist) { |
| 1250 | jio_fprintf(defaultStream::error_stream(), |
| 1251 | "Could not open settings file %s\n", file_name); |
| 1252 | return false; |
| 1253 | } else { |
| 1254 | return true; |
| 1255 | } |
| 1256 | } |
| 1257 | |
| 1258 | char token[1024]; |
| 1259 | int pos = 0; |
| 1260 | |
| 1261 | bool in_white_space = true; |
| 1262 | bool in_comment = false; |
| 1263 | bool in_quote = false; |
| 1264 | char quote_c = 0; |
| 1265 | bool result = true; |
| 1266 | |
| 1267 | int c = getc(stream)_IO_getc (stream); |
| 1268 | while(c != EOF(-1) && pos < (int)(sizeof(token)-1)) { |
| 1269 | if (in_white_space) { |
| 1270 | if (in_comment) { |
| 1271 | if (c == '\n') in_comment = false; |
| 1272 | } else { |
| 1273 | if (c == '#') in_comment = true; |
| 1274 | else if (!isspace(c)) { |
| 1275 | in_white_space = false; |
| 1276 | token[pos++] = c; |
| 1277 | } |
| 1278 | } |
| 1279 | } else { |
| 1280 | if (c == '\n' || (!in_quote && isspace(c))) { |
| 1281 | // token ends at newline, or at unquoted whitespace |
| 1282 | // this allows a way to include spaces in string-valued options |
| 1283 | token[pos] = '\0'; |
| 1284 | logOption(token); |
| 1285 | result &= process_argument(token, ignore_unrecognized, JVMFlagOrigin::CONFIG_FILE); |
| 1286 | build_jvm_flags(token); |
| 1287 | pos = 0; |
| 1288 | in_white_space = true; |
| 1289 | in_quote = false; |
| 1290 | } else if (!in_quote && (c == '\'' || c == '"')) { |
| 1291 | in_quote = true; |
| 1292 | quote_c = c; |
| 1293 | } else if (in_quote && (c == quote_c)) { |
| 1294 | in_quote = false; |
| 1295 | } else { |
| 1296 | token[pos++] = c; |
| 1297 | } |
| 1298 | } |
| 1299 | c = getc(stream)_IO_getc (stream); |
| 1300 | } |
| 1301 | if (pos > 0) { |
| 1302 | token[pos] = '\0'; |
| 1303 | result &= process_argument(token, ignore_unrecognized, JVMFlagOrigin::CONFIG_FILE); |
| 1304 | build_jvm_flags(token); |
| 1305 | } |
| 1306 | fclose(stream); |
| 1307 | return result; |
| 1308 | } |
| 1309 | |
| 1310 | //============================================================================================================= |
| 1311 | // Parsing of properties (-D) |
| 1312 | |
| 1313 | const char* Arguments::get_property(const char* key) { |
| 1314 | return PropertyList_get_value(system_properties(), key); |
| 1315 | } |
| 1316 | |
| 1317 | bool Arguments::add_property(const char* prop, PropertyWriteable writeable, PropertyInternal internal) { |
| 1318 | const char* eq = strchr(prop, '='); |
| 1319 | const char* key; |
| 1320 | const char* value = ""; |
| 1321 | |
| 1322 | if (eq == NULL__null) { |
| 1323 | // property doesn't have a value, thus use passed string |
| 1324 | key = prop; |
| 1325 | } else { |
| 1326 | // property have a value, thus extract it and save to the |
| 1327 | // allocated string |
| 1328 | size_t key_len = eq - prop; |
| 1329 | char* tmp_key = AllocateHeap(key_len + 1, mtArguments); |
| 1330 | |
| 1331 | jio_snprintf(tmp_key, key_len + 1, "%s", prop); |
| 1332 | key = tmp_key; |
| 1333 | |
| 1334 | value = &prop[key_len + 1]; |
| 1335 | } |
| 1336 | |
| 1337 | #if INCLUDE_CDS1 |
| 1338 | if (is_internal_module_property(key) || |
| 1339 | strcmp(key, "jdk.module.main") == 0) { |
| 1340 | MetaspaceShared::disable_optimized_module_handling(); |
| 1341 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("optimized module handling: disabled due to incompatible property: %s=%s", key, value); |
| 1342 | } |
| 1343 | if (strcmp(key, "jdk.module.showModuleResolution") == 0 || |
| 1344 | strcmp(key, "jdk.module.validation") == 0 || |
| 1345 | strcmp(key, "java.system.class.loader") == 0) { |
| 1346 | MetaspaceShared::disable_full_module_graph(); |
| 1347 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("full module graph: disabled due to incompatible property: %s=%s", key, value); |
| 1348 | } |
| 1349 | #endif |
| 1350 | |
| 1351 | if (strcmp(key, "java.compiler") == 0) { |
| 1352 | process_java_compiler_argument(value); |
| 1353 | // Record value in Arguments, but let it get passed to Java. |
| 1354 | } else if (strcmp(key, "sun.java.launcher.is_altjvm") == 0) { |
| 1355 | // sun.java.launcher.is_altjvm property is |
| 1356 | // private and is processed in process_sun_java_launcher_properties(); |
| 1357 | // the sun.java.launcher property is passed on to the java application |
| 1358 | } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 1359 | // append is true, writable is true, internal is false |
| 1360 | PropertyList_unique_add(&_system_properties, key, value, AppendProperty, |
| 1361 | WriteableProperty, ExternalProperty); |
| 1362 | } else { |
| 1363 | if (strcmp(key, "sun.java.command") == 0) { |
| 1364 | char *old_java_command = _java_command; |
| 1365 | _java_command = os::strdup_check_oom(value, mtArguments); |
| 1366 | if (old_java_command != NULL__null) { |
| 1367 | os::free(old_java_command); |
| 1368 | } |
| 1369 | } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 1370 | // If this property is set on the command line then its value will be |
| 1371 | // displayed in VM error logs as the URL at which to submit such logs. |
| 1372 | // Normally the URL displayed in error logs is different from the value |
| 1373 | // of this system property, so a different property should have been |
| 1374 | // used here, but we leave this as-is in case someone depends upon it. |
| 1375 | const char* old_java_vendor_url_bug = _java_vendor_url_bug; |
| 1376 | // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 1377 | // its value without going through the property list or making a Java call. |
| 1378 | _java_vendor_url_bug = os::strdup_check_oom(value, mtArguments); |
| 1379 | if (old_java_vendor_url_bug != NULL__null) { |
| 1380 | os::free((void *)old_java_vendor_url_bug); |
| 1381 | } |
| 1382 | } |
| 1383 | |
| 1384 | // Create new property and add at the end of the list |
| 1385 | PropertyList_unique_add(&_system_properties, key, value, AddProperty, writeable, internal); |
| 1386 | } |
| 1387 | |
| 1388 | if (key != prop) { |
| 1389 | // SystemProperty copy passed value, thus free previously allocated |
| 1390 | // memory |
| 1391 | FreeHeap((void *)key); |
| 1392 | } |
| 1393 | |
| 1394 | return true; |
| 1395 | } |
| 1396 | |
| 1397 | #if INCLUDE_CDS1 |
| 1398 | const char* unsupported_properties[] = { "jdk.module.limitmods", |
| 1399 | "jdk.module.upgrade.path", |
| 1400 | "jdk.module.patch.0" }; |
| 1401 | const char* unsupported_options[] = { "--limit-modules", |
| 1402 | "--upgrade-module-path", |
| 1403 | "--patch-module" |
| 1404 | }; |
| 1405 | void Arguments::check_unsupported_dumping_properties() { |
| 1406 | assert(is_dumping_archive(),do { if (!(is_dumping_archive())) { (*g_assert_poison) = 'X'; ; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1407, "assert(" "is_dumping_archive()" ") failed", "this function is only used with CDS dump time" ); ::breakpoint(); } } while (0) |
| 1407 | "this function is only used with CDS dump time")do { if (!(is_dumping_archive())) { (*g_assert_poison) = 'X'; ; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1407, "assert(" "is_dumping_archive()" ") failed", "this function is only used with CDS dump time" ); ::breakpoint(); } } while (0); |
| 1408 | assert(ARRAY_SIZE(unsupported_properties) == ARRAY_SIZE(unsupported_options), "must be")do { if (!(sizeof(array_size_impl(unsupported_properties)) == sizeof(array_size_impl(unsupported_options)))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1408, "assert(" "sizeof(array_size_impl(unsupported_properties)) == sizeof(array_size_impl(unsupported_options))" ") failed", "must be"); ::breakpoint(); } } while (0); |
| 1409 | // If a vm option is found in the unsupported_options array, vm will exit with an error message. |
| 1410 | SystemProperty* sp = system_properties(); |
| 1411 | while (sp != NULL__null) { |
| 1412 | for (uint i = 0; i < ARRAY_SIZE(unsupported_properties)sizeof(array_size_impl(unsupported_properties)); i++) { |
| 1413 | if (strcmp(sp->key(), unsupported_properties[i]) == 0) { |
| 1414 | vm_exit_during_initialization( |
| 1415 | "Cannot use the following option when dumping the shared archive", unsupported_options[i]); |
| 1416 | } |
| 1417 | } |
| 1418 | sp = sp->next(); |
| 1419 | } |
| 1420 | |
| 1421 | // Check for an exploded module build in use with -Xshare:dump. |
| 1422 | if (!has_jimage()) { |
| 1423 | vm_exit_during_initialization("Dumping the shared archive is not supported with an exploded module build"); |
| 1424 | } |
| 1425 | } |
| 1426 | |
| 1427 | bool Arguments::check_unsupported_cds_runtime_properties() { |
| 1428 | assert(UseSharedSpaces, "this function is only used with -Xshare:{on,auto}")do { if (!(UseSharedSpaces)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1428, "assert(" "UseSharedSpaces" ") failed", "this function is only used with -Xshare:{on,auto}" ); ::breakpoint(); } } while (0); |
| 1429 | assert(ARRAY_SIZE(unsupported_properties) == ARRAY_SIZE(unsupported_options), "must be")do { if (!(sizeof(array_size_impl(unsupported_properties)) == sizeof(array_size_impl(unsupported_options)))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1429, "assert(" "sizeof(array_size_impl(unsupported_properties)) == sizeof(array_size_impl(unsupported_options))" ") failed", "must be"); ::breakpoint(); } } while (0); |
| 1430 | if (ArchiveClassesAtExit != NULL__null) { |
| 1431 | // dynamic dumping, just return false for now. |
| 1432 | // check_unsupported_dumping_properties() will be called later to check the same set of |
| 1433 | // properties, and will exit the VM with the correct error message if the unsupported properties |
| 1434 | // are used. |
| 1435 | return false; |
| 1436 | } |
| 1437 | for (uint i = 0; i < ARRAY_SIZE(unsupported_properties)sizeof(array_size_impl(unsupported_properties)); i++) { |
| 1438 | if (get_property(unsupported_properties[i]) != NULL__null) { |
| 1439 | if (RequireSharedSpaces) { |
| 1440 | warning("CDS is disabled when the %s option is specified.", unsupported_options[i]); |
| 1441 | } else { |
| 1442 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("CDS is disabled when the %s option is specified.", unsupported_options[i]); |
| 1443 | } |
| 1444 | return true; |
| 1445 | } |
| 1446 | } |
| 1447 | return false; |
| 1448 | } |
| 1449 | #endif |
| 1450 | |
| 1451 | //=========================================================================================================== |
| 1452 | // Setting int/mixed/comp mode flags |
| 1453 | |
| 1454 | void Arguments::set_mode_flags(Mode mode) { |
| 1455 | // Set up default values for all flags. |
| 1456 | // If you add a flag to any of the branches below, |
| 1457 | // add a default value for it here. |
| 1458 | set_java_compiler(false); |
| 1459 | _mode = mode; |
| 1460 | |
| 1461 | // Ensure Agent_OnLoad has the correct initial values. |
| 1462 | // This may not be the final mode; mode may change later in onload phase. |
| 1463 | PropertyList_unique_add(&_system_properties, "java.vm.info", |
| 1464 | VM_Version::vm_info_string(), AddProperty, UnwriteableProperty, ExternalProperty); |
| 1465 | |
| 1466 | UseInterpreter = true; |
| 1467 | UseCompiler = true; |
| 1468 | UseLoopCounter = true; |
| 1469 | |
| 1470 | // Default values may be platform/compiler dependent - |
| 1471 | // use the saved values |
| 1472 | ClipInlining = Arguments::_ClipInlining; |
| 1473 | AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; |
| 1474 | UseOnStackReplacement = Arguments::_UseOnStackReplacement; |
| 1475 | BackgroundCompilation = Arguments::_BackgroundCompilation; |
| 1476 | |
| 1477 | // Change from defaults based on mode |
| 1478 | switch (mode) { |
| 1479 | default: |
| 1480 | ShouldNotReachHere()do { (*g_assert_poison) = 'X';; report_should_not_reach_here( "/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1480); ::breakpoint(); } while (0); |
| 1481 | break; |
| 1482 | case _int: |
| 1483 | UseCompiler = false; |
| 1484 | UseLoopCounter = false; |
| 1485 | AlwaysCompileLoopMethods = false; |
| 1486 | UseOnStackReplacement = false; |
| 1487 | break; |
| 1488 | case _mixed: |
| 1489 | // same as default |
| 1490 | break; |
| 1491 | case _comp: |
| 1492 | UseInterpreter = false; |
| 1493 | BackgroundCompilation = false; |
| 1494 | ClipInlining = false; |
| 1495 | break; |
| 1496 | } |
| 1497 | } |
| 1498 | |
| 1499 | // Conflict: required to use shared spaces (-Xshare:on), but |
| 1500 | // incompatible command line options were chosen. |
| 1501 | static void no_shared_spaces(const char* message) { |
| 1502 | if (RequireSharedSpaces) { |
| 1503 | jio_fprintf(defaultStream::error_stream(), |
| 1504 | "Class data sharing is inconsistent with other specified options.\n"); |
| 1505 | vm_exit_during_initialization("Unable to use shared archive", message); |
| 1506 | } else { |
| 1507 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("Unable to use shared archive: %s", message); |
| 1508 | UseSharedSpaces = false; |
| 1509 | } |
| 1510 | } |
| 1511 | |
| 1512 | void set_object_alignment() { |
| 1513 | // Object alignment. |
| 1514 | assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2")do { if (!(is_power_of_2(ObjectAlignmentInBytes))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1514, "assert(" "is_power_of_2(ObjectAlignmentInBytes)" ") failed" , "ObjectAlignmentInBytes must be power of 2"); ::breakpoint( ); } } while (0); |
| 1515 | MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
| 1516 | assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small")do { if (!(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize )) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1516, "assert(" "MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize" ") failed", "ObjectAlignmentInBytes value is too small"); :: breakpoint(); } } while (0); |
| 1517 | MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
| 1518 | assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect")do { if (!(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize )) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1518, "assert(" "MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize" ") failed", "ObjectAlignmentInBytes value is incorrect"); :: breakpoint(); } } while (0); |
| 1519 | MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
| 1520 | |
| 1521 | LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
| 1522 | LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
| 1523 | |
| 1524 | // Oop encoding heap max |
| 1525 | OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
| 1526 | } |
| 1527 | |
| 1528 | size_t Arguments::max_heap_for_compressed_oops() { |
| 1529 | // Avoid sign flip. |
| 1530 | assert(OopEncodingHeapMax > (uint64_t)os::vm_page_size(), "Unusual page size")do { if (!(OopEncodingHeapMax > (uint64_t)os::vm_page_size ())) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1530, "assert(" "OopEncodingHeapMax > (uint64_t)os::vm_page_size()" ") failed", "Unusual page size"); ::breakpoint(); } } while ( 0); |
| 1531 | // We need to fit both the NULL page and the heap into the memory budget, while |
| 1532 | // keeping alignment constraints of the heap. To guarantee the latter, as the |
| 1533 | // NULL page is located before the heap, we pad the NULL page to the conservative |
| 1534 | // maximum alignment that the GC may ever impose upon the heap. |
| 1535 | size_t displacement_due_to_null_page = align_up((size_t)os::vm_page_size(), |
| 1536 | _conservative_max_heap_alignment); |
| 1537 | |
| 1538 | LP64_ONLY(return OopEncodingHeapMax - displacement_due_to_null_page)return OopEncodingHeapMax - displacement_due_to_null_page; |
| 1539 | NOT_LP64(ShouldNotReachHere(); return 0); |
| 1540 | } |
| 1541 | |
| 1542 | void Arguments::set_use_compressed_oops() { |
| 1543 | #ifdef _LP641 |
| 1544 | // MaxHeapSize is not set up properly at this point, but |
| 1545 | // the only value that can override MaxHeapSize if we are |
| 1546 | // to use UseCompressedOops are InitialHeapSize and MinHeapSize. |
| 1547 | size_t max_heap_size = MAX3(MaxHeapSize, InitialHeapSize, MinHeapSize); |
| 1548 | |
| 1549 | if (max_heap_size <= max_heap_for_compressed_oops()) { |
| 1550 | if (FLAG_IS_DEFAULT(UseCompressedOops)(JVMFlag::is_default(Flag_UseCompressedOops_enum))) { |
| 1551 | FLAG_SET_ERGO(UseCompressedOops, true)(Flag_UseCompressedOops_set((true), JVMFlagOrigin::ERGONOMIC) ); |
| 1552 | } |
| 1553 | } else { |
| 1554 | if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)(JVMFlag::is_default(Flag_UseCompressedOops_enum))) { |
| 1555 | warning("Max heap size too large for Compressed Oops"); |
| 1556 | FLAG_SET_DEFAULT(UseCompressedOops, false)((UseCompressedOops) = (false)); |
| 1557 | if (COMPRESSED_CLASS_POINTERS_DEPENDS_ON_COMPRESSED_OOPSEnableJVMCI) { |
| 1558 | FLAG_SET_DEFAULT(UseCompressedClassPointers, false)((UseCompressedClassPointers) = (false)); |
| 1559 | } |
| 1560 | } |
| 1561 | } |
| 1562 | #endif // _LP64 |
| 1563 | } |
| 1564 | |
| 1565 | |
| 1566 | // NOTE: set_use_compressed_klass_ptrs() must be called after calling |
| 1567 | // set_use_compressed_oops(). |
| 1568 | void Arguments::set_use_compressed_klass_ptrs() { |
| 1569 | #ifdef _LP641 |
| 1570 | // On some architectures, the use of UseCompressedClassPointers implies the use of |
| 1571 | // UseCompressedOops. The reason is that the rheap_base register of said platforms |
| 1572 | // is reused to perform some optimized spilling, in order to use rheap_base as a |
| 1573 | // temp register. But by treating it as any other temp register, spilling can typically |
| 1574 | // be completely avoided instead. So it is better not to perform this trick. And by |
| 1575 | // not having that reliance, large heaps, or heaps not supporting compressed oops, |
| 1576 | // can still use compressed class pointers. |
| 1577 | if (COMPRESSED_CLASS_POINTERS_DEPENDS_ON_COMPRESSED_OOPSEnableJVMCI && !UseCompressedOops) { |
| 1578 | if (UseCompressedClassPointers) { |
| 1579 | warning("UseCompressedClassPointers requires UseCompressedOops"); |
| 1580 | } |
| 1581 | FLAG_SET_DEFAULT(UseCompressedClassPointers, false)((UseCompressedClassPointers) = (false)); |
| 1582 | } else { |
| 1583 | // Turn on UseCompressedClassPointers too |
| 1584 | if (FLAG_IS_DEFAULT(UseCompressedClassPointers)(JVMFlag::is_default(Flag_UseCompressedClassPointers_enum))) { |
| 1585 | FLAG_SET_ERGO(UseCompressedClassPointers, true)(Flag_UseCompressedClassPointers_set((true), JVMFlagOrigin::ERGONOMIC )); |
| 1586 | } |
| 1587 | // Check the CompressedClassSpaceSize to make sure we use compressed klass ptrs. |
| 1588 | if (UseCompressedClassPointers) { |
| 1589 | if (CompressedClassSpaceSize > KlassEncodingMetaspaceMax) { |
| 1590 | warning("CompressedClassSpaceSize is too large for UseCompressedClassPointers"); |
| 1591 | FLAG_SET_DEFAULT(UseCompressedClassPointers, false)((UseCompressedClassPointers) = (false)); |
| 1592 | } |
| 1593 | } |
| 1594 | } |
| 1595 | #endif // _LP64 |
| 1596 | } |
| 1597 | |
| 1598 | void Arguments::set_conservative_max_heap_alignment() { |
| 1599 | // The conservative maximum required alignment for the heap is the maximum of |
| 1600 | // the alignments imposed by several sources: any requirements from the heap |
| 1601 | // itself and the maximum page size we may run the VM with. |
| 1602 | size_t heap_alignment = GCConfig::arguments()->conservative_max_heap_alignment(); |
| 1603 | _conservative_max_heap_alignment = MAX4(heap_alignment, |
| 1604 | (size_t)os::vm_allocation_granularity(), |
| 1605 | os::max_page_size(), |
| 1606 | GCArguments::compute_heap_alignment()); |
| 1607 | } |
| 1608 | |
| 1609 | jint Arguments::set_ergonomics_flags() { |
| 1610 | GCConfig::initialize(); |
| 1611 | |
| 1612 | set_conservative_max_heap_alignment(); |
| 1613 | |
| 1614 | #ifdef _LP641 |
| 1615 | set_use_compressed_oops(); |
| 1616 | |
| 1617 | // set_use_compressed_klass_ptrs() must be called after calling |
| 1618 | // set_use_compressed_oops(). |
| 1619 | set_use_compressed_klass_ptrs(); |
| 1620 | |
| 1621 | // Also checks that certain machines are slower with compressed oops |
| 1622 | // in vm_version initialization code. |
| 1623 | #endif // _LP64 |
| 1624 | |
| 1625 | return JNI_OK0; |
| 1626 | } |
| 1627 | |
| 1628 | size_t Arguments::limit_heap_by_allocatable_memory(size_t limit) { |
| 1629 | size_t max_allocatable; |
| 1630 | size_t result = limit; |
| 1631 | if (os::has_allocatable_memory_limit(&max_allocatable)) { |
| 1632 | // The AggressiveHeap check is a temporary workaround to avoid calling |
| 1633 | // GCarguments::heap_virtual_to_physical_ratio() before a GC has been |
| 1634 | // selected. This works because AggressiveHeap implies UseParallelGC |
| 1635 | // where we know the ratio will be 1. Once the AggressiveHeap option is |
| 1636 | // removed, this can be cleaned up. |
| 1637 | size_t heap_virtual_to_physical_ratio = (AggressiveHeap ? 1 : GCConfig::arguments()->heap_virtual_to_physical_ratio()); |
| 1638 | size_t fraction = MaxVirtMemFraction * heap_virtual_to_physical_ratio; |
| 1639 | result = MIN2(result, max_allocatable / fraction); |
| 1640 | } |
| 1641 | return result; |
| 1642 | } |
| 1643 | |
| 1644 | // Use static initialization to get the default before parsing |
| 1645 | static const size_t DefaultHeapBaseMinAddress = HeapBaseMinAddress; |
| 1646 | |
| 1647 | void Arguments::set_heap_size() { |
| 1648 | julong phys_mem; |
| 1649 | |
| 1650 | // If the user specified one of these options, they |
| 1651 | // want specific memory sizing so do not limit memory |
| 1652 | // based on compressed oops addressability. |
| 1653 | // Also, memory limits will be calculated based on |
| 1654 | // available os physical memory, not our MaxRAM limit, |
| 1655 | // unless MaxRAM is also specified. |
| 1656 | bool override_coop_limit = (!FLAG_IS_DEFAULT(MaxRAMPercentage)(JVMFlag::is_default(Flag_MaxRAMPercentage_enum)) || |
| 1657 | !FLAG_IS_DEFAULT(MaxRAMFraction)(JVMFlag::is_default(Flag_MaxRAMFraction_enum)) || |
| 1658 | !FLAG_IS_DEFAULT(MinRAMPercentage)(JVMFlag::is_default(Flag_MinRAMPercentage_enum)) || |
| 1659 | !FLAG_IS_DEFAULT(MinRAMFraction)(JVMFlag::is_default(Flag_MinRAMFraction_enum)) || |
| 1660 | !FLAG_IS_DEFAULT(InitialRAMPercentage)(JVMFlag::is_default(Flag_InitialRAMPercentage_enum)) || |
| 1661 | !FLAG_IS_DEFAULT(InitialRAMFraction)(JVMFlag::is_default(Flag_InitialRAMFraction_enum)) || |
| 1662 | !FLAG_IS_DEFAULT(MaxRAM)(JVMFlag::is_default(Flag_MaxRAM_enum))); |
| 1663 | if (override_coop_limit) { |
| 1664 | if (FLAG_IS_DEFAULT(MaxRAM)(JVMFlag::is_default(Flag_MaxRAM_enum))) { |
| 1665 | phys_mem = os::physical_memory(); |
| 1666 | FLAG_SET_ERGO(MaxRAM, (uint64_t)phys_mem)(Flag_MaxRAM_set(((uint64_t)phys_mem), JVMFlagOrigin::ERGONOMIC )); |
| 1667 | } else { |
| 1668 | phys_mem = (julong)MaxRAM; |
| 1669 | } |
| 1670 | } else { |
| 1671 | phys_mem = FLAG_IS_DEFAULT(MaxRAM)(JVMFlag::is_default(Flag_MaxRAM_enum)) ? MIN2(os::physical_memory(), (julong)MaxRAM) |
| 1672 | : (julong)MaxRAM; |
| 1673 | } |
| 1674 | |
| 1675 | |
| 1676 | // Convert deprecated flags |
| 1677 | if (FLAG_IS_DEFAULT(MaxRAMPercentage)(JVMFlag::is_default(Flag_MaxRAMPercentage_enum)) && |
| 1678 | !FLAG_IS_DEFAULT(MaxRAMFraction)(JVMFlag::is_default(Flag_MaxRAMFraction_enum))) |
| 1679 | MaxRAMPercentage = 100.0 / MaxRAMFraction; |
| 1680 | |
| 1681 | if (FLAG_IS_DEFAULT(MinRAMPercentage)(JVMFlag::is_default(Flag_MinRAMPercentage_enum)) && |
| 1682 | !FLAG_IS_DEFAULT(MinRAMFraction)(JVMFlag::is_default(Flag_MinRAMFraction_enum))) |
| 1683 | MinRAMPercentage = 100.0 / MinRAMFraction; |
| 1684 | |
| 1685 | if (FLAG_IS_DEFAULT(InitialRAMPercentage)(JVMFlag::is_default(Flag_InitialRAMPercentage_enum)) && |
| 1686 | !FLAG_IS_DEFAULT(InitialRAMFraction)(JVMFlag::is_default(Flag_InitialRAMFraction_enum))) |
| 1687 | InitialRAMPercentage = 100.0 / InitialRAMFraction; |
| 1688 | |
| 1689 | // If the maximum heap size has not been set with -Xmx, |
| 1690 | // then set it as fraction of the size of physical memory, |
| 1691 | // respecting the maximum and minimum sizes of the heap. |
| 1692 | if (FLAG_IS_DEFAULT(MaxHeapSize)(JVMFlag::is_default(Flag_MaxHeapSize_enum))) { |
| 1693 | julong reasonable_max = (julong)((phys_mem * MaxRAMPercentage) / 100); |
| 1694 | const julong reasonable_min = (julong)((phys_mem * MinRAMPercentage) / 100); |
| 1695 | if (reasonable_min < MaxHeapSize) { |
| 1696 | // Small physical memory, so use a minimum fraction of it for the heap |
| 1697 | reasonable_max = reasonable_min; |
| 1698 | } else { |
| 1699 | // Not-small physical memory, so require a heap at least |
| 1700 | // as large as MaxHeapSize |
| 1701 | reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); |
| 1702 | } |
| 1703 | |
| 1704 | if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit)(JVMFlag::is_default(Flag_ErgoHeapSizeLimit_enum)) && ErgoHeapSizeLimit != 0) { |
| 1705 | // Limit the heap size to ErgoHeapSizeLimit |
| 1706 | reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); |
| 1707 | } |
| 1708 | |
| 1709 | #ifdef _LP641 |
| 1710 | if (UseCompressedOops || UseCompressedClassPointers) { |
| 1711 | // HeapBaseMinAddress can be greater than default but not less than. |
| 1712 | if (!FLAG_IS_DEFAULT(HeapBaseMinAddress)(JVMFlag::is_default(Flag_HeapBaseMinAddress_enum))) { |
| 1713 | if (HeapBaseMinAddress < DefaultHeapBaseMinAddress) { |
| 1714 | // matches compressed oops printing flags |
| 1715 | log_debug(gc, heap, coops)(!(LogImpl<(LogTag::_gc), (LogTag::_heap), (LogTag::_coops ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Debug))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::_heap), (LogTag::_coops), (LogTag::__NO_TAG) , (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Debug>("HeapBaseMinAddress must be at least " SIZE_FORMAT"%" "l" "u" |
| 1716 | " (" SIZE_FORMAT"%" "l" "u" "G) which is greater than value given " SIZE_FORMAT"%" "l" "u", |
| 1717 | DefaultHeapBaseMinAddress, |
| 1718 | DefaultHeapBaseMinAddress/G, |
| 1719 | HeapBaseMinAddress); |
| 1720 | FLAG_SET_ERGO(HeapBaseMinAddress, DefaultHeapBaseMinAddress)(Flag_HeapBaseMinAddress_set((DefaultHeapBaseMinAddress), JVMFlagOrigin ::ERGONOMIC)); |
| 1721 | } |
| 1722 | } |
| 1723 | } |
| 1724 | if (UseCompressedOops) { |
| 1725 | // Limit the heap size to the maximum possible when using compressed oops |
| 1726 | julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
| 1727 | |
| 1728 | if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { |
| 1729 | // Heap should be above HeapBaseMinAddress to get zero based compressed oops |
| 1730 | // but it should be not less than default MaxHeapSize. |
| 1731 | max_coop_heap -= HeapBaseMinAddress; |
| 1732 | } |
| 1733 | |
| 1734 | // If user specified flags prioritizing os physical |
| 1735 | // memory limits, then disable compressed oops if |
| 1736 | // limits exceed max_coop_heap and UseCompressedOops |
| 1737 | // was not specified. |
| 1738 | if (reasonable_max > max_coop_heap) { |
| 1739 | if (FLAG_IS_ERGO(UseCompressedOops)(JVMFlag::is_ergo(Flag_UseCompressedOops_enum)) && override_coop_limit) { |
| 1740 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("UseCompressedOops and UseCompressedClassPointers have been disabled due to" |
| 1741 | " max heap " SIZE_FORMAT"%" "l" "u" " > compressed oop heap " SIZE_FORMAT"%" "l" "u" ". " |
| 1742 | "Please check the setting of MaxRAMPercentage %5.2f." |
| 1743 | ,(size_t)reasonable_max, (size_t)max_coop_heap, MaxRAMPercentage); |
| 1744 | FLAG_SET_ERGO(UseCompressedOops, false)(Flag_UseCompressedOops_set((false), JVMFlagOrigin::ERGONOMIC )); |
| 1745 | if (COMPRESSED_CLASS_POINTERS_DEPENDS_ON_COMPRESSED_OOPSEnableJVMCI) { |
| 1746 | FLAG_SET_ERGO(UseCompressedClassPointers, false)(Flag_UseCompressedClassPointers_set((false), JVMFlagOrigin:: ERGONOMIC)); |
| 1747 | } |
| 1748 | } else { |
| 1749 | reasonable_max = MIN2(reasonable_max, max_coop_heap); |
| 1750 | } |
| 1751 | } |
| 1752 | } |
| 1753 | #endif // _LP64 |
| 1754 | |
| 1755 | reasonable_max = limit_heap_by_allocatable_memory(reasonable_max); |
| 1756 | |
| 1757 | if (!FLAG_IS_DEFAULT(InitialHeapSize)(JVMFlag::is_default(Flag_InitialHeapSize_enum))) { |
| 1758 | // An initial heap size was specified on the command line, |
| 1759 | // so be sure that the maximum size is consistent. Done |
| 1760 | // after call to limit_heap_by_allocatable_memory because that |
| 1761 | // method might reduce the allocation size. |
| 1762 | reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); |
| 1763 | } else if (!FLAG_IS_DEFAULT(MinHeapSize)(JVMFlag::is_default(Flag_MinHeapSize_enum))) { |
| 1764 | reasonable_max = MAX2(reasonable_max, (julong)MinHeapSize); |
| 1765 | } |
| 1766 | |
| 1767 | log_trace(gc, heap)(!(LogImpl<(LogTag::_gc), (LogTag::_heap), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Trace))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::_heap), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Trace>(" Maximum heap size " SIZE_FORMAT"%" "l" "u", (size_t) reasonable_max); |
| 1768 | FLAG_SET_ERGO(MaxHeapSize, (size_t)reasonable_max)(Flag_MaxHeapSize_set(((size_t)reasonable_max), JVMFlagOrigin ::ERGONOMIC)); |
| 1769 | } |
| 1770 | |
| 1771 | // If the minimum or initial heap_size have not been set or requested to be set |
| 1772 | // ergonomically, set them accordingly. |
| 1773 | if (InitialHeapSize == 0 || MinHeapSize == 0) { |
| 1774 | julong reasonable_minimum = (julong)(OldSize + NewSize); |
| 1775 | |
| 1776 | reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
| 1777 | |
| 1778 | reasonable_minimum = limit_heap_by_allocatable_memory(reasonable_minimum); |
| 1779 | |
| 1780 | if (InitialHeapSize == 0) { |
| 1781 | julong reasonable_initial = (julong)((phys_mem * InitialRAMPercentage) / 100); |
| 1782 | reasonable_initial = limit_heap_by_allocatable_memory(reasonable_initial); |
| 1783 | |
| 1784 | reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)MinHeapSize); |
| 1785 | reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1786 | |
| 1787 | FLAG_SET_ERGO(InitialHeapSize, (size_t)reasonable_initial)(Flag_InitialHeapSize_set(((size_t)reasonable_initial), JVMFlagOrigin ::ERGONOMIC)); |
| 1788 | log_trace(gc, heap)(!(LogImpl<(LogTag::_gc), (LogTag::_heap), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Trace))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::_heap), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Trace>(" Initial heap size " SIZE_FORMAT"%" "l" "u", InitialHeapSize); |
| 1789 | } |
| 1790 | // If the minimum heap size has not been set (via -Xms or -XX:MinHeapSize), |
| 1791 | // synchronize with InitialHeapSize to avoid errors with the default value. |
| 1792 | if (MinHeapSize == 0) { |
| 1793 | FLAG_SET_ERGO(MinHeapSize, MIN2((size_t)reasonable_minimum, InitialHeapSize))(Flag_MinHeapSize_set((MIN2((size_t)reasonable_minimum, InitialHeapSize )), JVMFlagOrigin::ERGONOMIC)); |
| 1794 | log_trace(gc, heap)(!(LogImpl<(LogTag::_gc), (LogTag::_heap), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Trace))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::_heap), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Trace>(" Minimum heap size " SIZE_FORMAT"%" "l" "u", MinHeapSize); |
| 1795 | } |
| 1796 | } |
| 1797 | } |
| 1798 | |
| 1799 | // This option inspects the machine and attempts to set various |
| 1800 | // parameters to be optimal for long-running, memory allocation |
| 1801 | // intensive jobs. It is intended for machines with large |
| 1802 | // amounts of cpu and memory. |
| 1803 | jint Arguments::set_aggressive_heap_flags() { |
| 1804 | // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit |
| 1805 | // VM, but we may not be able to represent the total physical memory |
| 1806 | // available (like having 8gb of memory on a box but using a 32bit VM). |
| 1807 | // Thus, we need to make sure we're using a julong for intermediate |
| 1808 | // calculations. |
| 1809 | julong initHeapSize; |
| 1810 | julong total_memory = os::physical_memory(); |
| 1811 | |
| 1812 | if (total_memory < (julong) 256 * M) { |
| 1813 | jio_fprintf(defaultStream::error_stream(), |
| 1814 | "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); |
| 1815 | vm_exit(1); |
| 1816 | } |
| 1817 | |
| 1818 | // The heap size is half of available memory, or (at most) |
| 1819 | // all of possible memory less 160mb (leaving room for the OS |
| 1820 | // when using ISM). This is the maximum; because adaptive sizing |
| 1821 | // is turned on below, the actual space used may be smaller. |
| 1822 | |
| 1823 | initHeapSize = MIN2(total_memory / (julong) 2, |
| 1824 | total_memory - (julong) 160 * M); |
| 1825 | |
| 1826 | initHeapSize = limit_heap_by_allocatable_memory(initHeapSize); |
| 1827 | |
| 1828 | if (FLAG_IS_DEFAULT(MaxHeapSize)(JVMFlag::is_default(Flag_MaxHeapSize_enum))) { |
| 1829 | if (FLAG_SET_CMDLINE(MaxHeapSize, initHeapSize)(JVMFlag::setOnCmdLine(Flag_MaxHeapSize_enum), Flag_MaxHeapSize_set ((initHeapSize), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1830 | return JNI_EINVAL(-6); |
| 1831 | } |
| 1832 | if (FLAG_SET_CMDLINE(InitialHeapSize, initHeapSize)(JVMFlag::setOnCmdLine(Flag_InitialHeapSize_enum), Flag_InitialHeapSize_set ((initHeapSize), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1833 | return JNI_EINVAL(-6); |
| 1834 | } |
| 1835 | if (FLAG_SET_CMDLINE(MinHeapSize, initHeapSize)(JVMFlag::setOnCmdLine(Flag_MinHeapSize_enum), Flag_MinHeapSize_set ((initHeapSize), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1836 | return JNI_EINVAL(-6); |
| 1837 | } |
| 1838 | } |
| 1839 | if (FLAG_IS_DEFAULT(NewSize)(JVMFlag::is_default(Flag_NewSize_enum))) { |
| 1840 | // Make the young generation 3/8ths of the total heap. |
| 1841 | if (FLAG_SET_CMDLINE(NewSize,(JVMFlag::setOnCmdLine(Flag_NewSize_enum), Flag_NewSize_set(( ((julong) MaxHeapSize / (julong) 8) * (julong) 3), JVMFlagOrigin ::COMMAND_LINE)) |
| 1842 | ((julong) MaxHeapSize / (julong) 8) * (julong) 3)(JVMFlag::setOnCmdLine(Flag_NewSize_enum), Flag_NewSize_set(( ((julong) MaxHeapSize / (julong) 8) * (julong) 3), JVMFlagOrigin ::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1843 | return JNI_EINVAL(-6); |
| 1844 | } |
| 1845 | if (FLAG_SET_CMDLINE(MaxNewSize, NewSize)(JVMFlag::setOnCmdLine(Flag_MaxNewSize_enum), Flag_MaxNewSize_set ((NewSize), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1846 | return JNI_EINVAL(-6); |
| 1847 | } |
| 1848 | } |
| 1849 | |
| 1850 | #if !defined(_ALLBSD_SOURCE) && !defined(AIX) // UseLargePages is not yet supported on BSD and AIX. |
| 1851 | FLAG_SET_DEFAULT(UseLargePages, true)((UseLargePages) = (true)); |
| 1852 | #endif |
| 1853 | |
| 1854 | // Increase some data structure sizes for efficiency |
| 1855 | if (FLAG_SET_CMDLINE(BaseFootPrintEstimate, MaxHeapSize)(JVMFlag::setOnCmdLine(Flag_BaseFootPrintEstimate_enum), Flag_BaseFootPrintEstimate_set ((MaxHeapSize), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1856 | return JNI_EINVAL(-6); |
| 1857 | } |
| 1858 | if (FLAG_SET_CMDLINE(ResizeTLAB, false)(JVMFlag::setOnCmdLine(Flag_ResizeTLAB_enum), Flag_ResizeTLAB_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1859 | return JNI_EINVAL(-6); |
| 1860 | } |
| 1861 | if (FLAG_SET_CMDLINE(TLABSize, 256 * K)(JVMFlag::setOnCmdLine(Flag_TLABSize_enum), Flag_TLABSize_set ((256 * K), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1862 | return JNI_EINVAL(-6); |
| 1863 | } |
| 1864 | |
| 1865 | // See the OldPLABSize comment below, but replace 'after promotion' |
| 1866 | // with 'after copying'. YoungPLABSize is the size of the survivor |
| 1867 | // space per-gc-thread buffers. The default is 4kw. |
| 1868 | if (FLAG_SET_CMDLINE(YoungPLABSize, 256 * K)(JVMFlag::setOnCmdLine(Flag_YoungPLABSize_enum), Flag_YoungPLABSize_set ((256 * K), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { // Note: this is in words |
| 1869 | return JNI_EINVAL(-6); |
| 1870 | } |
| 1871 | |
| 1872 | // OldPLABSize is the size of the buffers in the old gen that |
| 1873 | // UseParallelGC uses to promote live data that doesn't fit in the |
| 1874 | // survivor spaces. At any given time, there's one for each gc thread. |
| 1875 | // The default size is 1kw. These buffers are rarely used, since the |
| 1876 | // survivor spaces are usually big enough. For specjbb, however, there |
| 1877 | // are occasions when there's lots of live data in the young gen |
| 1878 | // and we end up promoting some of it. We don't have a definite |
| 1879 | // explanation for why bumping OldPLABSize helps, but the theory |
| 1880 | // is that a bigger PLAB results in retaining something like the |
| 1881 | // original allocation order after promotion, which improves mutator |
| 1882 | // locality. A minor effect may be that larger PLABs reduce the |
| 1883 | // number of PLAB allocation events during gc. The value of 8kw |
| 1884 | // was arrived at by experimenting with specjbb. |
| 1885 | if (FLAG_SET_CMDLINE(OldPLABSize, 8 * K)(JVMFlag::setOnCmdLine(Flag_OldPLABSize_enum), Flag_OldPLABSize_set ((8 * K), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { // Note: this is in words |
| 1886 | return JNI_EINVAL(-6); |
| 1887 | } |
| 1888 | |
| 1889 | // Enable parallel GC and adaptive generation sizing |
| 1890 | if (FLAG_SET_CMDLINE(UseParallelGC, true)(JVMFlag::setOnCmdLine(Flag_UseParallelGC_enum), Flag_UseParallelGC_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1891 | return JNI_EINVAL(-6); |
| 1892 | } |
| 1893 | |
| 1894 | // Encourage steady state memory management |
| 1895 | if (FLAG_SET_CMDLINE(ThresholdTolerance, 100)(JVMFlag::setOnCmdLine(Flag_ThresholdTolerance_enum), Flag_ThresholdTolerance_set ((100), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1896 | return JNI_EINVAL(-6); |
| 1897 | } |
| 1898 | |
| 1899 | // This appears to improve mutator locality |
| 1900 | if (FLAG_SET_CMDLINE(ScavengeBeforeFullGC, false)(JVMFlag::setOnCmdLine(Flag_ScavengeBeforeFullGC_enum), Flag_ScavengeBeforeFullGC_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 1901 | return JNI_EINVAL(-6); |
| 1902 | } |
| 1903 | |
| 1904 | return JNI_OK0; |
| 1905 | } |
| 1906 | |
| 1907 | // This must be called after ergonomics. |
| 1908 | void Arguments::set_bytecode_flags() { |
| 1909 | if (!RewriteBytecodes) { |
| 1910 | FLAG_SET_DEFAULT(RewriteFrequentPairs, false)((RewriteFrequentPairs) = (false)); |
| 1911 | } |
| 1912 | } |
| 1913 | |
| 1914 | // Aggressive optimization flags |
| 1915 | jint Arguments::set_aggressive_opts_flags() { |
| 1916 | #ifdef COMPILER21 |
| 1917 | if (AggressiveUnboxing) { |
| 1918 | if (FLAG_IS_DEFAULT(EliminateAutoBox)(JVMFlag::is_default(Flag_EliminateAutoBox_enum))) { |
| 1919 | FLAG_SET_DEFAULT(EliminateAutoBox, true)((EliminateAutoBox) = (true)); |
| 1920 | } else if (!EliminateAutoBox) { |
| 1921 | // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); |
| 1922 | AggressiveUnboxing = false; |
| 1923 | } |
| 1924 | if (FLAG_IS_DEFAULT(DoEscapeAnalysis)(JVMFlag::is_default(Flag_DoEscapeAnalysis_enum))) { |
| 1925 | FLAG_SET_DEFAULT(DoEscapeAnalysis, true)((DoEscapeAnalysis) = (true)); |
| 1926 | } else if (!DoEscapeAnalysis) { |
| 1927 | // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); |
| 1928 | AggressiveUnboxing = false; |
| 1929 | } |
| 1930 | } |
| 1931 | if (!FLAG_IS_DEFAULT(AutoBoxCacheMax)(JVMFlag::is_default(Flag_AutoBoxCacheMax_enum))) { |
| 1932 | if (FLAG_IS_DEFAULT(EliminateAutoBox)(JVMFlag::is_default(Flag_EliminateAutoBox_enum))) { |
| 1933 | FLAG_SET_DEFAULT(EliminateAutoBox, true)((EliminateAutoBox) = (true)); |
| 1934 | } |
| 1935 | // Feed the cache size setting into the JDK |
| 1936 | char buffer[1024]; |
| 1937 | jio_snprintf(buffer, 1024, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT"%" "l" "d", AutoBoxCacheMax); |
| 1938 | if (!add_property(buffer)) { |
| 1939 | return JNI_ENOMEM(-4); |
| 1940 | } |
| 1941 | } |
| 1942 | #endif |
| 1943 | |
| 1944 | return JNI_OK0; |
| 1945 | } |
| 1946 | |
| 1947 | //=========================================================================================================== |
| 1948 | // Parsing of java.compiler property |
| 1949 | |
| 1950 | void Arguments::process_java_compiler_argument(const char* arg) { |
| 1951 | // For backwards compatibility, Djava.compiler=NONE or "" |
| 1952 | // causes us to switch to -Xint mode UNLESS -Xdebug |
| 1953 | // is also specified. |
| 1954 | if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { |
| 1955 | set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. |
| 1956 | } |
| 1957 | } |
| 1958 | |
| 1959 | void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { |
| 1960 | _sun_java_launcher = os::strdup_check_oom(launcher); |
| 1961 | } |
| 1962 | |
| 1963 | bool Arguments::created_by_java_launcher() { |
| 1964 | assert(_sun_java_launcher != NULL, "property must have value")do { if (!(_sun_java_launcher != __null)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 1964, "assert(" "_sun_java_launcher != __null" ") failed", "property must have value" ); ::breakpoint(); } } while (0); |
| 1965 | return strcmp(DEFAULT_JAVA_LAUNCHER"generic", _sun_java_launcher) != 0; |
| 1966 | } |
| 1967 | |
| 1968 | bool Arguments::sun_java_launcher_is_altjvm() { |
| 1969 | return _sun_java_launcher_is_altjvm; |
| 1970 | } |
| 1971 | |
| 1972 | //=========================================================================================================== |
| 1973 | // Parsing of main arguments |
| 1974 | |
| 1975 | unsigned int addreads_count = 0; |
| 1976 | unsigned int addexports_count = 0; |
| 1977 | unsigned int addopens_count = 0; |
| 1978 | unsigned int addmods_count = 0; |
| 1979 | unsigned int patch_mod_count = 0; |
| 1980 | unsigned int enable_native_access_count = 0; |
| 1981 | |
| 1982 | // Check the consistency of vm_init_args |
| 1983 | bool Arguments::check_vm_args_consistency() { |
| 1984 | // Method for adding checks for flag consistency. |
| 1985 | // The intent is to warn the user of all possible conflicts, |
| 1986 | // before returning an error. |
| 1987 | // Note: Needs platform-dependent factoring. |
| 1988 | bool status = true; |
| 1989 | |
| 1990 | if (TLABRefillWasteFraction == 0) { |
| 1991 | jio_fprintf(defaultStream::error_stream(), |
| 1992 | "TLABRefillWasteFraction should be a denominator, " |
| 1993 | "not " SIZE_FORMAT"%" "l" "u" "\n", |
| 1994 | TLABRefillWasteFraction); |
| 1995 | status = false; |
| 1996 | } |
| 1997 | |
| 1998 | status = CompilerConfig::check_args_consistency(status); |
| 1999 | #if INCLUDE_JVMCI1 |
| 2000 | if (status && EnableJVMCI) { |
| 2001 | PropertyList_unique_add(&_system_properties, "jdk.internal.vm.ci.enabled", "true", |
| 2002 | AddProperty, UnwriteableProperty, InternalProperty); |
| 2003 | if (!create_numbered_module_property("jdk.module.addmods", "jdk.internal.vm.ci", addmods_count++)) { |
| 2004 | return false; |
| 2005 | } |
| 2006 | } |
| 2007 | #endif |
| 2008 | |
| 2009 | #ifndef SUPPORT_RESERVED_STACK_AREA |
| 2010 | if (StackReservedPages != 0) { |
| 2011 | FLAG_SET_CMDLINE(StackReservedPages, 0)(JVMFlag::setOnCmdLine(Flag_StackReservedPages_enum), Flag_StackReservedPages_set ((0), JVMFlagOrigin::COMMAND_LINE)); |
| 2012 | warning("Reserved Stack Area not supported on this platform"); |
| 2013 | } |
| 2014 | #endif |
| 2015 | |
| 2016 | #if !defined(X86) && !defined(AARCH64) && !defined(PPC64) |
| 2017 | if (UseHeavyMonitors) { |
| 2018 | warning("UseHeavyMonitors is not fully implemented on this architecture"); |
| 2019 | } |
| 2020 | #endif |
| 2021 | #if (defined(X86) || defined(PPC64)) && !defined(ZERO) |
| 2022 | if (UseHeavyMonitors && UseRTMForStackLocks) { |
| 2023 | fatal("-XX:+UseHeavyMonitors and -XX:+UseRTMForStackLocks are mutually exclusive")do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2023, "-XX:+UseHeavyMonitors and -XX:+UseRTMForStackLocks are mutually exclusive" ); ::breakpoint(); } while (0); |
| 2024 | } |
| 2025 | #endif |
| 2026 | if (VerifyHeavyMonitors && !UseHeavyMonitors) { |
| 2027 | fatal("-XX:+VerifyHeavyMonitors requires -XX:+UseHeavyMonitors")do { (*g_assert_poison) = 'X';; report_fatal(INTERNAL_ERROR, "/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2027, "-XX:+VerifyHeavyMonitors requires -XX:+UseHeavyMonitors" ); ::breakpoint(); } while (0); |
| 2028 | } |
| 2029 | |
| 2030 | return status; |
| 2031 | } |
| 2032 | |
| 2033 | bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, |
| 2034 | const char* option_type) { |
| 2035 | if (ignore) return false; |
| 2036 | |
| 2037 | const char* spacer = " "; |
| 2038 | if (option_type == NULL__null) { |
| 2039 | option_type = ++spacer; // Set both to the empty string. |
| 2040 | } |
| 2041 | |
| 2042 | jio_fprintf(defaultStream::error_stream(), |
| 2043 | "Unrecognized %s%soption: %s\n", option_type, spacer, |
| 2044 | option->optionString); |
| 2045 | return true; |
| 2046 | } |
| 2047 | |
| 2048 | static const char* user_assertion_options[] = { |
| 2049 | "-da", "-ea", "-disableassertions", "-enableassertions", 0 |
| 2050 | }; |
| 2051 | |
| 2052 | static const char* system_assertion_options[] = { |
| 2053 | "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 |
| 2054 | }; |
| 2055 | |
| 2056 | bool Arguments::parse_uintx(const char* value, |
| 2057 | uintx* uintx_arg, |
| 2058 | uintx min_size) { |
| 2059 | |
| 2060 | // Check the sign first since atojulong() parses only unsigned values. |
| 2061 | bool value_is_positive = !(*value == '-'); |
| 2062 | |
| 2063 | if (value_is_positive) { |
| 2064 | julong n; |
| 2065 | bool good_return = atojulong(value, &n); |
| 2066 | if (good_return) { |
| 2067 | bool above_minimum = n >= min_size; |
| 2068 | bool value_is_too_large = n > max_uintx; |
| 2069 | |
| 2070 | if (above_minimum && !value_is_too_large) { |
| 2071 | *uintx_arg = n; |
| 2072 | return true; |
| 2073 | } |
| 2074 | } |
| 2075 | } |
| 2076 | return false; |
| 2077 | } |
| 2078 | |
| 2079 | bool Arguments::create_module_property(const char* prop_name, const char* prop_value, PropertyInternal internal) { |
| 2080 | assert(is_internal_module_property(prop_name), "unknown module property: '%s'", prop_name)do { if (!(is_internal_module_property(prop_name))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2080, "assert(" "is_internal_module_property(prop_name)" ") failed" , "unknown module property: '%s'", prop_name); ::breakpoint() ; } } while (0); |
| 2081 | size_t prop_len = strlen(prop_name) + strlen(prop_value) + 2; |
| 2082 | char* property = AllocateHeap(prop_len, mtArguments); |
| 2083 | int ret = jio_snprintf(property, prop_len, "%s=%s", prop_name, prop_value); |
| 2084 | if (ret < 0 || ret >= (int)prop_len) { |
| 2085 | FreeHeap(property); |
| 2086 | return false; |
| 2087 | } |
| 2088 | // These are not strictly writeable properties as they cannot be set via -Dprop=val. But that |
| 2089 | // is enforced by checking is_internal_module_property(). We need the property to be writeable so |
| 2090 | // that multiple occurrences of the associated flag just causes the existing property value to be |
| 2091 | // replaced ("last option wins"). Otherwise we would need to keep track of the flags and only convert |
| 2092 | // to a property after we have finished flag processing. |
| 2093 | bool added = add_property(property, WriteableProperty, internal); |
| 2094 | FreeHeap(property); |
| 2095 | return added; |
| 2096 | } |
| 2097 | |
| 2098 | bool Arguments::create_numbered_module_property(const char* prop_base_name, const char* prop_value, unsigned int count) { |
| 2099 | assert(is_internal_module_property(prop_base_name), "unknown module property: '%s'", prop_base_name)do { if (!(is_internal_module_property(prop_base_name))) { (* g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2099, "assert(" "is_internal_module_property(prop_base_name)" ") failed", "unknown module property: '%s'", prop_base_name) ; ::breakpoint(); } } while (0); |
| 2100 | const unsigned int props_count_limit = 1000; |
| 2101 | const int max_digits = 3; |
| 2102 | const int extra_symbols_count = 3; // includes '.', '=', '\0' |
| 2103 | |
| 2104 | // Make sure count is < props_count_limit. Otherwise, memory allocation will be too small. |
| 2105 | if (count < props_count_limit) { |
| 2106 | size_t prop_len = strlen(prop_base_name) + strlen(prop_value) + max_digits + extra_symbols_count; |
| 2107 | char* property = AllocateHeap(prop_len, mtArguments); |
| 2108 | int ret = jio_snprintf(property, prop_len, "%s.%d=%s", prop_base_name, count, prop_value); |
| 2109 | if (ret < 0 || ret >= (int)prop_len) { |
| 2110 | FreeHeap(property); |
| 2111 | jio_fprintf(defaultStream::error_stream(), "Failed to create property %s.%d=%s\n", prop_base_name, count, prop_value); |
| 2112 | return false; |
| 2113 | } |
| 2114 | bool added = add_property(property, UnwriteableProperty, InternalProperty); |
| 2115 | FreeHeap(property); |
| 2116 | return added; |
| 2117 | } |
| 2118 | |
| 2119 | jio_fprintf(defaultStream::error_stream(), "Property count limit exceeded: %s, limit=%d\n", prop_base_name, props_count_limit); |
| 2120 | return false; |
| 2121 | } |
| 2122 | |
| 2123 | Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
| 2124 | julong* long_arg, |
| 2125 | julong min_size, |
| 2126 | julong max_size) { |
| 2127 | if (!atojulong(s, long_arg)) return arg_unreadable; |
| 2128 | return check_memory_size(*long_arg, min_size, max_size); |
| 2129 | } |
| 2130 | |
| 2131 | // Parse JavaVMInitArgs structure |
| 2132 | |
| 2133 | jint Arguments::parse_vm_init_args(const JavaVMInitArgs *vm_options_args, |
| 2134 | const JavaVMInitArgs *java_tool_options_args, |
| 2135 | const JavaVMInitArgs *java_options_args, |
| 2136 | const JavaVMInitArgs *cmd_line_args) { |
| 2137 | bool patch_mod_javabase = false; |
| 2138 | |
| 2139 | // Save default settings for some mode flags |
| 2140 | Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; |
| 2141 | Arguments::_UseOnStackReplacement = UseOnStackReplacement; |
| 2142 | Arguments::_ClipInlining = ClipInlining; |
| 2143 | Arguments::_BackgroundCompilation = BackgroundCompilation; |
| 2144 | |
| 2145 | // Remember the default value of SharedBaseAddress. |
| 2146 | Arguments::_default_SharedBaseAddress = SharedBaseAddress; |
| 2147 | |
| 2148 | // Setup flags for mixed which is the default |
| 2149 | set_mode_flags(_mixed); |
| 2150 | |
| 2151 | // Parse args structure generated from java.base vm options resource |
| 2152 | jint result = parse_each_vm_init_arg(vm_options_args, &patch_mod_javabase, JVMFlagOrigin::JIMAGE_RESOURCE); |
| 2153 | if (result != JNI_OK0) { |
| 2154 | return result; |
| 2155 | } |
| 2156 | |
| 2157 | // Parse args structure generated from JAVA_TOOL_OPTIONS environment |
| 2158 | // variable (if present). |
| 2159 | result = parse_each_vm_init_arg(java_tool_options_args, &patch_mod_javabase, JVMFlagOrigin::ENVIRON_VAR); |
| 2160 | if (result != JNI_OK0) { |
| 2161 | return result; |
| 2162 | } |
| 2163 | |
| 2164 | // Parse args structure generated from the command line flags. |
| 2165 | result = parse_each_vm_init_arg(cmd_line_args, &patch_mod_javabase, JVMFlagOrigin::COMMAND_LINE); |
| 2166 | if (result != JNI_OK0) { |
| 2167 | return result; |
| 2168 | } |
| 2169 | |
| 2170 | // Parse args structure generated from the _JAVA_OPTIONS environment |
| 2171 | // variable (if present) (mimics classic VM) |
| 2172 | result = parse_each_vm_init_arg(java_options_args, &patch_mod_javabase, JVMFlagOrigin::ENVIRON_VAR); |
| 2173 | if (result != JNI_OK0) { |
| 2174 | return result; |
| 2175 | } |
| 2176 | |
| 2177 | // We need to ensure processor and memory resources have been properly |
| 2178 | // configured - which may rely on arguments we just processed - before |
| 2179 | // doing the final argument processing. Any argument processing that |
| 2180 | // needs to know about processor and memory resources must occur after |
| 2181 | // this point. |
| 2182 | |
| 2183 | os::init_container_support(); |
| 2184 | |
| 2185 | // Do final processing now that all arguments have been parsed |
| 2186 | result = finalize_vm_init_args(patch_mod_javabase); |
| 2187 | if (result != JNI_OK0) { |
| 2188 | return result; |
| 2189 | } |
| 2190 | |
| 2191 | return JNI_OK0; |
| 2192 | } |
| 2193 | |
| 2194 | // Checks if name in command-line argument -agent{lib,path}:name[=options] |
| 2195 | // represents a valid JDWP agent. is_path==true denotes that we |
| 2196 | // are dealing with -agentpath (case where name is a path), otherwise with |
| 2197 | // -agentlib |
| 2198 | bool valid_jdwp_agent(char *name, bool is_path) { |
| 2199 | char *_name; |
| 2200 | const char *_jdwp = "jdwp"; |
| 2201 | size_t _len_jdwp, _len_prefix; |
| 2202 | |
| 2203 | if (is_path) { |
| 2204 | if ((_name = strrchr(name, (int) *os::file_separator())) == NULL__null) { |
| 2205 | return false; |
| 2206 | } |
| 2207 | |
| 2208 | _name++; // skip past last path separator |
| 2209 | _len_prefix = strlen(JNI_LIB_PREFIX"lib"); |
| 2210 | |
| 2211 | if (strncmp(_name, JNI_LIB_PREFIX"lib", _len_prefix) != 0) { |
| 2212 | return false; |
| 2213 | } |
| 2214 | |
| 2215 | _name += _len_prefix; |
| 2216 | _len_jdwp = strlen(_jdwp); |
| 2217 | |
| 2218 | if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
| 2219 | _name += _len_jdwp; |
| 2220 | } |
| 2221 | else { |
| 2222 | return false; |
| 2223 | } |
| 2224 | |
| 2225 | if (strcmp(_name, JNI_LIB_SUFFIX".so") != 0) { |
| 2226 | return false; |
| 2227 | } |
| 2228 | |
| 2229 | return true; |
| 2230 | } |
| 2231 | |
| 2232 | if (strcmp(name, _jdwp) == 0) { |
| 2233 | return true; |
| 2234 | } |
| 2235 | |
| 2236 | return false; |
| 2237 | } |
| 2238 | |
| 2239 | int Arguments::process_patch_mod_option(const char* patch_mod_tail, bool* patch_mod_javabase) { |
| 2240 | // --patch-module=<module>=<file>(<pathsep><file>)* |
| 2241 | assert(patch_mod_tail != NULL, "Unexpected NULL patch-module value")do { if (!(patch_mod_tail != __null)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2241, "assert(" "patch_mod_tail != __null" ") failed", "Unexpected NULL patch-module value" ); ::breakpoint(); } } while (0); |
| 2242 | // Find the equal sign between the module name and the path specification |
| 2243 | const char* module_equal = strchr(patch_mod_tail, '='); |
| 2244 | if (module_equal == NULL__null) { |
| 2245 | jio_fprintf(defaultStream::output_stream(), "Missing '=' in --patch-module specification\n"); |
| 2246 | return JNI_ERR(-1); |
| 2247 | } else { |
| 2248 | // Pick out the module name |
| 2249 | size_t module_len = module_equal - patch_mod_tail; |
| 2250 | char* module_name = NEW_C_HEAP_ARRAY_RETURN_NULL(char, module_len+1, mtArguments)(char*) (AllocateHeap(((module_len+1)) * sizeof(char), mtArguments , AllocFailStrategy::RETURN_NULL)); |
| 2251 | if (module_name != NULL__null) { |
| 2252 | memcpy(module_name, patch_mod_tail, module_len); |
| 2253 | *(module_name + module_len) = '\0'; |
| 2254 | // The path piece begins one past the module_equal sign |
| 2255 | add_patch_mod_prefix(module_name, module_equal + 1, patch_mod_javabase); |
| 2256 | FREE_C_HEAP_ARRAY(char, module_name)FreeHeap((char*)(module_name)); |
| 2257 | if (!create_numbered_module_property("jdk.module.patch", patch_mod_tail, patch_mod_count++)) { |
| 2258 | return JNI_ENOMEM(-4); |
| 2259 | } |
| 2260 | } else { |
| 2261 | return JNI_ENOMEM(-4); |
| 2262 | } |
| 2263 | } |
| 2264 | return JNI_OK0; |
| 2265 | } |
| 2266 | |
| 2267 | // Parse -Xss memory string parameter and convert to ThreadStackSize in K. |
| 2268 | jint Arguments::parse_xss(const JavaVMOption* option, const char* tail, intx* out_ThreadStackSize) { |
| 2269 | // The min and max sizes match the values in globals.hpp, but scaled |
| 2270 | // with K. The values have been chosen so that alignment with page |
| 2271 | // size doesn't change the max value, which makes the conversions |
| 2272 | // back and forth between Xss value and ThreadStackSize value easier. |
| 2273 | // The values have also been chosen to fit inside a 32-bit signed type. |
| 2274 | const julong min_ThreadStackSize = 0; |
| 2275 | const julong max_ThreadStackSize = 1 * M; |
| 2276 | |
| 2277 | // Make sure the above values match the range set in globals.hpp |
| 2278 | const JVMTypedFlagLimit<intx>* limit = JVMFlagLimit::get_range_at(FLAG_MEMBER_ENUM(ThreadStackSize)Flag_ThreadStackSize_enum)->cast<intx>(); |
| 2279 | assert(min_ThreadStackSize == static_cast<julong>(limit->min()), "must be")do { if (!(min_ThreadStackSize == static_cast<julong>(limit ->min()))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2279, "assert(" "min_ThreadStackSize == static_cast<julong>(limit->min())" ") failed", "must be"); ::breakpoint(); } } while (0); |
| 2280 | assert(max_ThreadStackSize == static_cast<julong>(limit->max()), "must be")do { if (!(max_ThreadStackSize == static_cast<julong>(limit ->max()))) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2280, "assert(" "max_ThreadStackSize == static_cast<julong>(limit->max())" ") failed", "must be"); ::breakpoint(); } } while (0); |
| 2281 | |
| 2282 | const julong min_size = min_ThreadStackSize * K; |
| 2283 | const julong max_size = max_ThreadStackSize * K; |
| 2284 | |
| 2285 | assert(is_aligned(max_size, os::vm_page_size()), "Implementation assumption")do { if (!(is_aligned(max_size, os::vm_page_size()))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2285, "assert(" "is_aligned(max_size, os::vm_page_size())" ") failed" , "Implementation assumption"); ::breakpoint(); } } while (0); |
| 2286 | |
| 2287 | julong size = 0; |
| 2288 | ArgsRange errcode = parse_memory_size(tail, &size, min_size, max_size); |
| 2289 | if (errcode != arg_in_range) { |
| 2290 | bool silent = (option == NULL__null); // Allow testing to silence error messages |
| 2291 | if (!silent) { |
| 2292 | jio_fprintf(defaultStream::error_stream(), |
| 2293 | "Invalid thread stack size: %s\n", option->optionString); |
| 2294 | describe_range_error(errcode); |
| 2295 | } |
| 2296 | return JNI_EINVAL(-6); |
| 2297 | } |
| 2298 | |
| 2299 | // Internally track ThreadStackSize in units of 1024 bytes. |
| 2300 | const julong size_aligned = align_up(size, K); |
| 2301 | assert(size <= size_aligned,do { if (!(size <= size_aligned)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2303, "assert(" "size <= size_aligned" ") failed", "Overflow: " "%" "l" "u" " " "%" "l" "u", size, size_aligned); ::breakpoint (); } } while (0) |
| 2302 | "Overflow: " JULONG_FORMAT " " JULONG_FORMAT,do { if (!(size <= size_aligned)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2303, "assert(" "size <= size_aligned" ") failed", "Overflow: " "%" "l" "u" " " "%" "l" "u", size, size_aligned); ::breakpoint (); } } while (0) |
| 2303 | size, size_aligned)do { if (!(size <= size_aligned)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2303, "assert(" "size <= size_aligned" ") failed", "Overflow: " "%" "l" "u" " " "%" "l" "u", size, size_aligned); ::breakpoint (); } } while (0); |
| 2304 | |
| 2305 | const julong size_in_K = size_aligned / K; |
| 2306 | assert(size_in_K < (julong)max_intx,do { if (!(size_in_K < (julong)max_intx)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2308, "assert(" "size_in_K < (julong)max_intx" ") failed" , "size_in_K doesn't fit in the type of ThreadStackSize: " "%" "l" "u", size_in_K); ::breakpoint(); } } while (0) |
| 2307 | "size_in_K doesn't fit in the type of ThreadStackSize: " JULONG_FORMAT,do { if (!(size_in_K < (julong)max_intx)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2308, "assert(" "size_in_K < (julong)max_intx" ") failed" , "size_in_K doesn't fit in the type of ThreadStackSize: " "%" "l" "u", size_in_K); ::breakpoint(); } } while (0) |
| 2308 | size_in_K)do { if (!(size_in_K < (julong)max_intx)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2308, "assert(" "size_in_K < (julong)max_intx" ") failed" , "size_in_K doesn't fit in the type of ThreadStackSize: " "%" "l" "u", size_in_K); ::breakpoint(); } } while (0); |
| 2309 | |
| 2310 | // Check that code expanding ThreadStackSize to a page aligned number of bytes won't overflow. |
| 2311 | const julong max_expanded = align_up(size_in_K * K, os::vm_page_size()); |
| 2312 | assert(max_expanded < max_uintx && max_expanded >= size_in_K,do { if (!(max_expanded < max_uintx && max_expanded >= size_in_K)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2314, "assert(" "max_expanded < max_uintx && max_expanded >= size_in_K" ") failed", "Expansion overflowed: " "%" "l" "u" " " "%" "l" "u", max_expanded, size_in_K); ::breakpoint(); } } while (0) |
| 2313 | "Expansion overflowed: " JULONG_FORMAT " " JULONG_FORMAT,do { if (!(max_expanded < max_uintx && max_expanded >= size_in_K)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2314, "assert(" "max_expanded < max_uintx && max_expanded >= size_in_K" ") failed", "Expansion overflowed: " "%" "l" "u" " " "%" "l" "u", max_expanded, size_in_K); ::breakpoint(); } } while (0) |
| 2314 | max_expanded, size_in_K)do { if (!(max_expanded < max_uintx && max_expanded >= size_in_K)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2314, "assert(" "max_expanded < max_uintx && max_expanded >= size_in_K" ") failed", "Expansion overflowed: " "%" "l" "u" " " "%" "l" "u", max_expanded, size_in_K); ::breakpoint(); } } while (0); |
| 2315 | |
| 2316 | *out_ThreadStackSize = (intx)size_in_K; |
| 2317 | |
| 2318 | return JNI_OK0; |
| 2319 | } |
| 2320 | |
| 2321 | jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, bool* patch_mod_javabase, JVMFlagOrigin origin) { |
| 2322 | // For match_option to return remaining or value part of option string |
| 2323 | const char* tail; |
| 2324 | |
| 2325 | // iterate over arguments |
| 2326 | for (int index = 0; index < args->nOptions; index++) { |
| 2327 | bool is_absolute_path = false; // for -agentpath vs -agentlib |
| 2328 | |
| 2329 | const JavaVMOption* option = args->options + index; |
| 2330 | |
| 2331 | if (!match_option(option, "-Djava.class.path", &tail) && |
| 2332 | !match_option(option, "-Dsun.java.command", &tail) && |
| 2333 | !match_option(option, "-Dsun.java.launcher", &tail)) { |
| 2334 | |
| 2335 | // add all jvm options to the jvm_args string. This string |
| 2336 | // is used later to set the java.vm.args PerfData string constant. |
| 2337 | // the -Djava.class.path and the -Dsun.java.command options are |
| 2338 | // omitted from jvm_args string as each have their own PerfData |
| 2339 | // string constant object. |
| 2340 | build_jvm_args(option->optionString); |
| 2341 | } |
| 2342 | |
| 2343 | // -verbose:[class/module/gc/jni] |
| 2344 | if (match_option(option, "-verbose", &tail)) { |
| 2345 | if (!strcmp(tail, ":class") || !strcmp(tail, "")) { |
| 2346 | LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(class, load)(LogTag::_class), (LogTag::_load), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 2347 | LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(class, unload)(LogTag::_class), (LogTag::_unload), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 2348 | } else if (!strcmp(tail, ":module")) { |
| 2349 | LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(module, load)(LogTag::_module), (LogTag::_load), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 2350 | LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(module, unload)(LogTag::_module), (LogTag::_unload), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 2351 | } else if (!strcmp(tail, ":gc")) { |
| 2352 | if (_legacyGCLogging.lastFlag == 0) { |
| 2353 | _legacyGCLogging.lastFlag = 1; |
| 2354 | } |
| 2355 | } else if (!strcmp(tail, ":jni")) { |
| 2356 | LogConfiguration::configure_stdout(LogLevel::Debug, true, LOG_TAGS(jni, resolve)(LogTag::_jni), (LogTag::_resolve), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 2357 | } |
| 2358 | // -da / -ea / -disableassertions / -enableassertions |
| 2359 | // These accept an optional class/package name separated by a colon, e.g., |
| 2360 | // -da:java.lang.Thread. |
| 2361 | } else if (match_option(option, user_assertion_options, &tail, true)) { |
| 2362 | bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' |
| 2363 | if (*tail == '\0') { |
| 2364 | JavaAssertions::setUserClassDefault(enable); |
| 2365 | } else { |
| 2366 | assert(*tail == ':', "bogus match by match_option()")do { if (!(*tail == ':')) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2366, "assert(" "*tail == ':'" ") failed", "bogus match by match_option()" ); ::breakpoint(); } } while (0); |
| 2367 | JavaAssertions::addOption(tail + 1, enable); |
| 2368 | } |
| 2369 | // -dsa / -esa / -disablesystemassertions / -enablesystemassertions |
| 2370 | } else if (match_option(option, system_assertion_options, &tail, false)) { |
| 2371 | bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' |
| 2372 | JavaAssertions::setSystemClassDefault(enable); |
| 2373 | // -bootclasspath: |
| 2374 | } else if (match_option(option, "-Xbootclasspath:", &tail)) { |
| 2375 | jio_fprintf(defaultStream::output_stream(), |
| 2376 | "-Xbootclasspath is no longer a supported option.\n"); |
| 2377 | return JNI_EINVAL(-6); |
| 2378 | // -bootclasspath/a: |
| 2379 | } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { |
| 2380 | Arguments::append_sysclasspath(tail); |
| 2381 | #if INCLUDE_CDS1 |
| 2382 | MetaspaceShared::disable_optimized_module_handling(); |
| 2383 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("optimized module handling: disabled because bootclasspath was appended"); |
| 2384 | #endif |
| 2385 | // -bootclasspath/p: |
| 2386 | } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { |
| 2387 | jio_fprintf(defaultStream::output_stream(), |
| 2388 | "-Xbootclasspath/p is no longer a supported option.\n"); |
| 2389 | return JNI_EINVAL(-6); |
| 2390 | // -Xrun |
| 2391 | } else if (match_option(option, "-Xrun", &tail)) { |
| 2392 | if (tail != NULL__null) { |
| 2393 | const char* pos = strchr(tail, ':'); |
| 2394 | size_t len = (pos == NULL__null) ? strlen(tail) : pos - tail; |
| 2395 | char* name = NEW_C_HEAP_ARRAY(char, len + 1, mtArguments)(char*) (AllocateHeap((len + 1) * sizeof(char), mtArguments)); |
| 2396 | jio_snprintf(name, len + 1, "%s", tail); |
| 2397 | |
| 2398 | char *options = NULL__null; |
| 2399 | if(pos != NULL__null) { |
| 2400 | size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. |
| 2401 | options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtArguments)(char*) (AllocateHeap((len2) * sizeof(char), mtArguments)), pos+1, len2); |
| 2402 | } |
| 2403 | #if !INCLUDE_JVMTI1 |
| 2404 | if (strcmp(name, "jdwp") == 0) { |
| 2405 | jio_fprintf(defaultStream::error_stream(), |
| 2406 | "Debugging agents are not supported in this VM\n"); |
| 2407 | return JNI_ERR(-1); |
| 2408 | } |
| 2409 | #endif // !INCLUDE_JVMTI |
| 2410 | add_init_library(name, options); |
| 2411 | } |
| 2412 | } else if (match_option(option, "--add-reads=", &tail)) { |
| 2413 | if (!create_numbered_module_property("jdk.module.addreads", tail, addreads_count++)) { |
| 2414 | return JNI_ENOMEM(-4); |
| 2415 | } |
| 2416 | } else if (match_option(option, "--add-exports=", &tail)) { |
| 2417 | if (!create_numbered_module_property("jdk.module.addexports", tail, addexports_count++)) { |
| 2418 | return JNI_ENOMEM(-4); |
| 2419 | } |
| 2420 | } else if (match_option(option, "--add-opens=", &tail)) { |
| 2421 | if (!create_numbered_module_property("jdk.module.addopens", tail, addopens_count++)) { |
| 2422 | return JNI_ENOMEM(-4); |
| 2423 | } |
| 2424 | } else if (match_option(option, "--add-modules=", &tail)) { |
| 2425 | if (!create_numbered_module_property("jdk.module.addmods", tail, addmods_count++)) { |
| 2426 | return JNI_ENOMEM(-4); |
| 2427 | } |
| 2428 | } else if (match_option(option, "--enable-native-access=", &tail)) { |
| 2429 | if (!create_numbered_module_property("jdk.module.enable.native.access", tail, enable_native_access_count++)) { |
| 2430 | return JNI_ENOMEM(-4); |
| 2431 | } |
| 2432 | } else if (match_option(option, "--limit-modules=", &tail)) { |
| 2433 | if (!create_module_property("jdk.module.limitmods", tail, InternalProperty)) { |
| 2434 | return JNI_ENOMEM(-4); |
| 2435 | } |
| 2436 | } else if (match_option(option, "--module-path=", &tail)) { |
| 2437 | if (!create_module_property("jdk.module.path", tail, ExternalProperty)) { |
| 2438 | return JNI_ENOMEM(-4); |
| 2439 | } |
| 2440 | } else if (match_option(option, "--upgrade-module-path=", &tail)) { |
| 2441 | if (!create_module_property("jdk.module.upgrade.path", tail, ExternalProperty)) { |
| 2442 | return JNI_ENOMEM(-4); |
| 2443 | } |
| 2444 | } else if (match_option(option, "--patch-module=", &tail)) { |
| 2445 | // --patch-module=<module>=<file>(<pathsep><file>)* |
| 2446 | int res = process_patch_mod_option(tail, patch_mod_javabase); |
| 2447 | if (res != JNI_OK0) { |
| 2448 | return res; |
| 2449 | } |
| 2450 | } else if (match_option(option, "--illegal-access=", &tail)) { |
| 2451 | char version[256]; |
| 2452 | JDK_Version::jdk(17).to_string(version, sizeof(version)); |
| 2453 | warning("Ignoring option %s; support was removed in %s", option->optionString, version); |
| 2454 | // -agentlib and -agentpath |
| 2455 | } else if (match_option(option, "-agentlib:", &tail) || |
| 2456 | (is_absolute_path = match_option(option, "-agentpath:", &tail))) { |
| 2457 | if(tail != NULL__null) { |
| 2458 | const char* pos = strchr(tail, '='); |
| 2459 | char* name; |
| 2460 | if (pos == NULL__null) { |
| 2461 | name = os::strdup_check_oom(tail, mtArguments); |
| 2462 | } else { |
| 2463 | size_t len = pos - tail; |
| 2464 | name = NEW_C_HEAP_ARRAY(char, len + 1, mtArguments)(char*) (AllocateHeap((len + 1) * sizeof(char), mtArguments)); |
| 2465 | memcpy(name, tail, len); |
| 2466 | name[len] = '\0'; |
| 2467 | } |
| 2468 | |
| 2469 | char *options = NULL__null; |
| 2470 | if(pos != NULL__null) { |
| 2471 | options = os::strdup_check_oom(pos + 1, mtArguments); |
| 2472 | } |
| 2473 | #if !INCLUDE_JVMTI1 |
| 2474 | if (valid_jdwp_agent(name, is_absolute_path)) { |
| 2475 | jio_fprintf(defaultStream::error_stream(), |
| 2476 | "Debugging agents are not supported in this VM\n"); |
| 2477 | return JNI_ERR(-1); |
| 2478 | } |
| 2479 | #endif // !INCLUDE_JVMTI |
| 2480 | add_init_agent(name, options, is_absolute_path); |
| 2481 | } |
| 2482 | // -javaagent |
| 2483 | } else if (match_option(option, "-javaagent:", &tail)) { |
| 2484 | #if !INCLUDE_JVMTI1 |
| 2485 | jio_fprintf(defaultStream::error_stream(), |
| 2486 | "Instrumentation agents are not supported in this VM\n"); |
| 2487 | return JNI_ERR(-1); |
| 2488 | #else |
| 2489 | if (tail != NULL__null) { |
| 2490 | size_t length = strlen(tail) + 1; |
| 2491 | char *options = NEW_C_HEAP_ARRAY(char, length, mtArguments)(char*) (AllocateHeap((length) * sizeof(char), mtArguments)); |
| 2492 | jio_snprintf(options, length, "%s", tail); |
| 2493 | add_instrument_agent("instrument", options, false); |
| 2494 | // java agents need module java.instrument |
| 2495 | if (!create_numbered_module_property("jdk.module.addmods", "java.instrument", addmods_count++)) { |
| 2496 | return JNI_ENOMEM(-4); |
| 2497 | } |
| 2498 | } |
| 2499 | #endif // !INCLUDE_JVMTI |
| 2500 | // --enable_preview |
| 2501 | } else if (match_option(option, "--enable-preview")) { |
| 2502 | set_enable_preview(); |
| 2503 | // -Xnoclassgc |
| 2504 | } else if (match_option(option, "-Xnoclassgc")) { |
| 2505 | if (FLAG_SET_CMDLINE(ClassUnloading, false)(JVMFlag::setOnCmdLine(Flag_ClassUnloading_enum), Flag_ClassUnloading_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2506 | return JNI_EINVAL(-6); |
| 2507 | } |
| 2508 | // -Xbatch |
| 2509 | } else if (match_option(option, "-Xbatch")) { |
| 2510 | if (FLAG_SET_CMDLINE(BackgroundCompilation, false)(JVMFlag::setOnCmdLine(Flag_BackgroundCompilation_enum), Flag_BackgroundCompilation_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2511 | return JNI_EINVAL(-6); |
| 2512 | } |
| 2513 | // -Xmn for compatibility with other JVM vendors |
| 2514 | } else if (match_option(option, "-Xmn", &tail)) { |
| 2515 | julong long_initial_young_size = 0; |
| 2516 | ArgsRange errcode = parse_memory_size(tail, &long_initial_young_size, 1); |
| 2517 | if (errcode != arg_in_range) { |
| 2518 | jio_fprintf(defaultStream::error_stream(), |
| 2519 | "Invalid initial young generation size: %s\n", option->optionString); |
| 2520 | describe_range_error(errcode); |
| 2521 | return JNI_EINVAL(-6); |
| 2522 | } |
| 2523 | if (FLAG_SET_CMDLINE(MaxNewSize, (size_t)long_initial_young_size)(JVMFlag::setOnCmdLine(Flag_MaxNewSize_enum), Flag_MaxNewSize_set (((size_t)long_initial_young_size), JVMFlagOrigin::COMMAND_LINE )) != JVMFlag::SUCCESS) { |
| 2524 | return JNI_EINVAL(-6); |
| 2525 | } |
| 2526 | if (FLAG_SET_CMDLINE(NewSize, (size_t)long_initial_young_size)(JVMFlag::setOnCmdLine(Flag_NewSize_enum), Flag_NewSize_set(( (size_t)long_initial_young_size), JVMFlagOrigin::COMMAND_LINE )) != JVMFlag::SUCCESS) { |
| 2527 | return JNI_EINVAL(-6); |
| 2528 | } |
| 2529 | // -Xms |
| 2530 | } else if (match_option(option, "-Xms", &tail)) { |
| 2531 | julong size = 0; |
| 2532 | // an initial heap size of 0 means automatically determine |
| 2533 | ArgsRange errcode = parse_memory_size(tail, &size, 0); |
| 2534 | if (errcode != arg_in_range) { |
| 2535 | jio_fprintf(defaultStream::error_stream(), |
| 2536 | "Invalid initial heap size: %s\n", option->optionString); |
| 2537 | describe_range_error(errcode); |
| 2538 | return JNI_EINVAL(-6); |
| 2539 | } |
| 2540 | if (FLAG_SET_CMDLINE(MinHeapSize, (size_t)size)(JVMFlag::setOnCmdLine(Flag_MinHeapSize_enum), Flag_MinHeapSize_set (((size_t)size), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2541 | return JNI_EINVAL(-6); |
| 2542 | } |
| 2543 | if (FLAG_SET_CMDLINE(InitialHeapSize, (size_t)size)(JVMFlag::setOnCmdLine(Flag_InitialHeapSize_enum), Flag_InitialHeapSize_set (((size_t)size), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2544 | return JNI_EINVAL(-6); |
| 2545 | } |
| 2546 | // -Xmx |
| 2547 | } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
| 2548 | julong long_max_heap_size = 0; |
| 2549 | ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2550 | if (errcode != arg_in_range) { |
| 2551 | jio_fprintf(defaultStream::error_stream(), |
| 2552 | "Invalid maximum heap size: %s\n", option->optionString); |
| 2553 | describe_range_error(errcode); |
| 2554 | return JNI_EINVAL(-6); |
| 2555 | } |
| 2556 | if (FLAG_SET_CMDLINE(MaxHeapSize, (size_t)long_max_heap_size)(JVMFlag::setOnCmdLine(Flag_MaxHeapSize_enum), Flag_MaxHeapSize_set (((size_t)long_max_heap_size), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2557 | return JNI_EINVAL(-6); |
| 2558 | } |
| 2559 | // Xmaxf |
| 2560 | } else if (match_option(option, "-Xmaxf", &tail)) { |
| 2561 | char* err; |
| 2562 | int maxf = (int)(strtod(tail, &err) * 100); |
| 2563 | if (*err != '\0' || *tail == '\0') { |
| 2564 | jio_fprintf(defaultStream::error_stream(), |
| 2565 | "Bad max heap free percentage size: %s\n", |
| 2566 | option->optionString); |
| 2567 | return JNI_EINVAL(-6); |
| 2568 | } else { |
| 2569 | if (FLAG_SET_CMDLINE(MaxHeapFreeRatio, maxf)(JVMFlag::setOnCmdLine(Flag_MaxHeapFreeRatio_enum), Flag_MaxHeapFreeRatio_set ((maxf), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2570 | return JNI_EINVAL(-6); |
| 2571 | } |
| 2572 | } |
| 2573 | // Xminf |
| 2574 | } else if (match_option(option, "-Xminf", &tail)) { |
| 2575 | char* err; |
| 2576 | int minf = (int)(strtod(tail, &err) * 100); |
| 2577 | if (*err != '\0' || *tail == '\0') { |
| 2578 | jio_fprintf(defaultStream::error_stream(), |
| 2579 | "Bad min heap free percentage size: %s\n", |
| 2580 | option->optionString); |
| 2581 | return JNI_EINVAL(-6); |
| 2582 | } else { |
| 2583 | if (FLAG_SET_CMDLINE(MinHeapFreeRatio, minf)(JVMFlag::setOnCmdLine(Flag_MinHeapFreeRatio_enum), Flag_MinHeapFreeRatio_set ((minf), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2584 | return JNI_EINVAL(-6); |
| 2585 | } |
| 2586 | } |
| 2587 | // -Xss |
| 2588 | } else if (match_option(option, "-Xss", &tail)) { |
| 2589 | intx value = 0; |
| 2590 | jint err = parse_xss(option, tail, &value); |
| 2591 | if (err != JNI_OK0) { |
| 2592 | return err; |
| 2593 | } |
| 2594 | if (FLAG_SET_CMDLINE(ThreadStackSize, value)(JVMFlag::setOnCmdLine(Flag_ThreadStackSize_enum), Flag_ThreadStackSize_set ((value), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2595 | return JNI_EINVAL(-6); |
| 2596 | } |
| 2597 | } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
| 2598 | match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
| 2599 | julong long_ReservedCodeCacheSize = 0; |
| 2600 | |
| 2601 | ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
| 2602 | if (errcode != arg_in_range) { |
| 2603 | jio_fprintf(defaultStream::error_stream(), |
| 2604 | "Invalid maximum code cache size: %s.\n", option->optionString); |
| 2605 | return JNI_EINVAL(-6); |
| 2606 | } |
| 2607 | if (FLAG_SET_CMDLINE(ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize)(JVMFlag::setOnCmdLine(Flag_ReservedCodeCacheSize_enum), Flag_ReservedCodeCacheSize_set (((uintx)long_ReservedCodeCacheSize), JVMFlagOrigin::COMMAND_LINE )) != JVMFlag::SUCCESS) { |
| 2608 | return JNI_EINVAL(-6); |
| 2609 | } |
| 2610 | // -green |
| 2611 | } else if (match_option(option, "-green")) { |
| 2612 | jio_fprintf(defaultStream::error_stream(), |
| 2613 | "Green threads support not available\n"); |
| 2614 | return JNI_EINVAL(-6); |
| 2615 | // -native |
| 2616 | } else if (match_option(option, "-native")) { |
| 2617 | // HotSpot always uses native threads, ignore silently for compatibility |
| 2618 | // -Xrs |
| 2619 | } else if (match_option(option, "-Xrs")) { |
| 2620 | // Classic/EVM option, new functionality |
| 2621 | if (FLAG_SET_CMDLINE(ReduceSignalUsage, true)(JVMFlag::setOnCmdLine(Flag_ReduceSignalUsage_enum), Flag_ReduceSignalUsage_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2622 | return JNI_EINVAL(-6); |
| 2623 | } |
| 2624 | // -Xprof |
| 2625 | } else if (match_option(option, "-Xprof")) { |
| 2626 | char version[256]; |
| 2627 | // Obsolete in JDK 10 |
| 2628 | JDK_Version::jdk(10).to_string(version, sizeof(version)); |
| 2629 | warning("Ignoring option %s; support was removed in %s", option->optionString, version); |
| 2630 | // -Xinternalversion |
| 2631 | } else if (match_option(option, "-Xinternalversion")) { |
| 2632 | jio_fprintf(defaultStream::output_stream(), "%s\n", |
| 2633 | VM_Version::internal_vm_info_string()); |
| 2634 | vm_exit(0); |
| 2635 | #ifndef PRODUCT |
| 2636 | // -Xprintflags |
| 2637 | } else if (match_option(option, "-Xprintflags")) { |
| 2638 | JVMFlag::printFlags(tty, false); |
| 2639 | vm_exit(0); |
| 2640 | #endif |
| 2641 | // -D |
| 2642 | } else if (match_option(option, "-D", &tail)) { |
| 2643 | const char* value; |
| 2644 | if (match_option(option, "-Djava.endorsed.dirs=", &value) && |
| 2645 | *value!= '\0' && strcmp(value, "\"\"") != 0) { |
| 2646 | // abort if -Djava.endorsed.dirs is set |
| 2647 | jio_fprintf(defaultStream::output_stream(), |
| 2648 | "-Djava.endorsed.dirs=%s is not supported. Endorsed standards and standalone APIs\n" |
| 2649 | "in modular form will be supported via the concept of upgradeable modules.\n", value); |
| 2650 | return JNI_EINVAL(-6); |
| 2651 | } |
| 2652 | if (match_option(option, "-Djava.ext.dirs=", &value) && |
| 2653 | *value != '\0' && strcmp(value, "\"\"") != 0) { |
| 2654 | // abort if -Djava.ext.dirs is set |
| 2655 | jio_fprintf(defaultStream::output_stream(), |
| 2656 | "-Djava.ext.dirs=%s is not supported. Use -classpath instead.\n", value); |
| 2657 | return JNI_EINVAL(-6); |
| 2658 | } |
| 2659 | // Check for module related properties. They must be set using the modules |
| 2660 | // options. For example: use "--add-modules=java.sql", not |
| 2661 | // "-Djdk.module.addmods=java.sql" |
| 2662 | if (is_internal_module_property(option->optionString + 2)) { |
| 2663 | needs_module_property_warning = true; |
| 2664 | continue; |
| 2665 | } |
| 2666 | if (!add_property(tail)) { |
| 2667 | return JNI_ENOMEM(-4); |
| 2668 | } |
| 2669 | // Out of the box management support |
| 2670 | if (match_option(option, "-Dcom.sun.management", &tail)) { |
| 2671 | #if INCLUDE_MANAGEMENT1 |
| 2672 | if (FLAG_SET_CMDLINE(ManagementServer, true)(JVMFlag::setOnCmdLine(Flag_ManagementServer_enum), Flag_ManagementServer_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2673 | return JNI_EINVAL(-6); |
| 2674 | } |
| 2675 | // management agent in module jdk.management.agent |
| 2676 | if (!create_numbered_module_property("jdk.module.addmods", "jdk.management.agent", addmods_count++)) { |
| 2677 | return JNI_ENOMEM(-4); |
| 2678 | } |
| 2679 | #else |
| 2680 | jio_fprintf(defaultStream::output_stream(), |
| 2681 | "-Dcom.sun.management is not supported in this VM.\n"); |
| 2682 | return JNI_ERR(-1); |
| 2683 | #endif |
| 2684 | } |
| 2685 | // -Xint |
| 2686 | } else if (match_option(option, "-Xint")) { |
| 2687 | set_mode_flags(_int); |
| 2688 | // -Xmixed |
| 2689 | } else if (match_option(option, "-Xmixed")) { |
| 2690 | set_mode_flags(_mixed); |
| 2691 | // -Xcomp |
| 2692 | } else if (match_option(option, "-Xcomp")) { |
| 2693 | // for testing the compiler; turn off all flags that inhibit compilation |
| 2694 | set_mode_flags(_comp); |
| 2695 | // -Xshare:dump |
| 2696 | } else if (match_option(option, "-Xshare:dump")) { |
| 2697 | DumpSharedSpaces = true; |
| 2698 | // -Xshare:on |
| 2699 | } else if (match_option(option, "-Xshare:on")) { |
| 2700 | UseSharedSpaces = true; |
| 2701 | RequireSharedSpaces = true; |
| 2702 | // -Xshare:auto || -XX:ArchiveClassesAtExit=<archive file> |
| 2703 | } else if (match_option(option, "-Xshare:auto")) { |
| 2704 | UseSharedSpaces = true; |
| 2705 | RequireSharedSpaces = false; |
| 2706 | xshare_auto_cmd_line = true; |
| 2707 | // -Xshare:off |
| 2708 | } else if (match_option(option, "-Xshare:off")) { |
| 2709 | UseSharedSpaces = false; |
| 2710 | RequireSharedSpaces = false; |
| 2711 | // -Xverify |
| 2712 | } else if (match_option(option, "-Xverify", &tail)) { |
| 2713 | if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { |
| 2714 | if (FLAG_SET_CMDLINE(BytecodeVerificationLocal, true)(JVMFlag::setOnCmdLine(Flag_BytecodeVerificationLocal_enum), Flag_BytecodeVerificationLocal_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2715 | return JNI_EINVAL(-6); |
| 2716 | } |
| 2717 | if (FLAG_SET_CMDLINE(BytecodeVerificationRemote, true)(JVMFlag::setOnCmdLine(Flag_BytecodeVerificationRemote_enum), Flag_BytecodeVerificationRemote_set((true), JVMFlagOrigin::COMMAND_LINE )) != JVMFlag::SUCCESS) { |
| 2718 | return JNI_EINVAL(-6); |
| 2719 | } |
| 2720 | } else if (strcmp(tail, ":remote") == 0) { |
| 2721 | if (FLAG_SET_CMDLINE(BytecodeVerificationLocal, false)(JVMFlag::setOnCmdLine(Flag_BytecodeVerificationLocal_enum), Flag_BytecodeVerificationLocal_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2722 | return JNI_EINVAL(-6); |
| 2723 | } |
| 2724 | if (FLAG_SET_CMDLINE(BytecodeVerificationRemote, true)(JVMFlag::setOnCmdLine(Flag_BytecodeVerificationRemote_enum), Flag_BytecodeVerificationRemote_set((true), JVMFlagOrigin::COMMAND_LINE )) != JVMFlag::SUCCESS) { |
| 2725 | return JNI_EINVAL(-6); |
| 2726 | } |
| 2727 | } else if (strcmp(tail, ":none") == 0) { |
| 2728 | if (FLAG_SET_CMDLINE(BytecodeVerificationLocal, false)(JVMFlag::setOnCmdLine(Flag_BytecodeVerificationLocal_enum), Flag_BytecodeVerificationLocal_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2729 | return JNI_EINVAL(-6); |
| 2730 | } |
| 2731 | if (FLAG_SET_CMDLINE(BytecodeVerificationRemote, false)(JVMFlag::setOnCmdLine(Flag_BytecodeVerificationRemote_enum), Flag_BytecodeVerificationRemote_set((false), JVMFlagOrigin:: COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2732 | return JNI_EINVAL(-6); |
| 2733 | } |
| 2734 | warning("Options -Xverify:none and -noverify were deprecated in JDK 13 and will likely be removed in a future release."); |
| 2735 | } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { |
| 2736 | return JNI_EINVAL(-6); |
| 2737 | } |
| 2738 | // -Xdebug |
| 2739 | } else if (match_option(option, "-Xdebug")) { |
| 2740 | // note this flag has been used, then ignore |
| 2741 | set_xdebug_mode(true); |
| 2742 | // -Xnoagent |
| 2743 | } else if (match_option(option, "-Xnoagent")) { |
| 2744 | // For compatibility with classic. HotSpot refuses to load the old style agent.dll. |
| 2745 | } else if (match_option(option, "-Xloggc:", &tail)) { |
| 2746 | // Deprecated flag to redirect GC output to a file. -Xloggc:<filename> |
| 2747 | log_warning(gc)(!(LogImpl<(LogTag::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Warning))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Warning>("-Xloggc is deprecated. Will use -Xlog:gc:%s instead.", tail); |
| 2748 | _legacyGCLogging.lastFlag = 2; |
| 2749 | _legacyGCLogging.file = os::strdup_check_oom(tail); |
| 2750 | } else if (match_option(option, "-Xlog", &tail)) { |
| 2751 | bool ret = false; |
| 2752 | if (strcmp(tail, ":help") == 0) { |
| 2753 | fileStream stream(defaultStream::output_stream()); |
| 2754 | LogConfiguration::print_command_line_help(&stream); |
| 2755 | vm_exit(0); |
| 2756 | } else if (strcmp(tail, ":disable") == 0) { |
| 2757 | LogConfiguration::disable_logging(); |
| 2758 | ret = true; |
| 2759 | } else if (strcmp(tail, ":async") == 0) { |
| 2760 | LogConfiguration::set_async_mode(true); |
| 2761 | ret = true; |
| 2762 | } else if (*tail == '\0') { |
| 2763 | ret = LogConfiguration::parse_command_line_arguments(); |
| 2764 | assert(ret, "-Xlog without arguments should never fail to parse")do { if (!(ret)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 2764, "assert(" "ret" ") failed", "-Xlog without arguments should never fail to parse" ); ::breakpoint(); } } while (0); |
| 2765 | } else if (*tail == ':') { |
| 2766 | ret = LogConfiguration::parse_command_line_arguments(tail + 1); |
| 2767 | } |
| 2768 | if (ret == false) { |
| 2769 | jio_fprintf(defaultStream::error_stream(), |
| 2770 | "Invalid -Xlog option '-Xlog%s', see error log for details.\n", |
| 2771 | tail); |
| 2772 | return JNI_EINVAL(-6); |
| 2773 | } |
| 2774 | // JNI hooks |
| 2775 | } else if (match_option(option, "-Xcheck", &tail)) { |
| 2776 | if (!strcmp(tail, ":jni")) { |
| 2777 | #if !INCLUDE_JNI_CHECK1 |
| 2778 | warning("JNI CHECKING is not supported in this VM"); |
| 2779 | #else |
| 2780 | CheckJNICalls = true; |
| 2781 | #endif // INCLUDE_JNI_CHECK |
| 2782 | } else if (is_bad_option(option, args->ignoreUnrecognized, |
| 2783 | "check")) { |
| 2784 | return JNI_EINVAL(-6); |
| 2785 | } |
| 2786 | } else if (match_option(option, "vfprintf")) { |
| 2787 | _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo)(reinterpret_cast<vfprintf_hook_t>(option->extraInfo )); |
| 2788 | } else if (match_option(option, "exit")) { |
| 2789 | _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo)(reinterpret_cast<exit_hook_t>(option->extraInfo)); |
| 2790 | } else if (match_option(option, "abort")) { |
| 2791 | _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo)(reinterpret_cast<abort_hook_t>(option->extraInfo)); |
| 2792 | // Need to keep consistency of MaxTenuringThreshold and AlwaysTenure/NeverTenure; |
| 2793 | // and the last option wins. |
| 2794 | } else if (match_option(option, "-XX:+NeverTenure")) { |
| 2795 | if (FLAG_SET_CMDLINE(NeverTenure, true)(JVMFlag::setOnCmdLine(Flag_NeverTenure_enum), Flag_NeverTenure_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2796 | return JNI_EINVAL(-6); |
| 2797 | } |
| 2798 | if (FLAG_SET_CMDLINE(AlwaysTenure, false)(JVMFlag::setOnCmdLine(Flag_AlwaysTenure_enum), Flag_AlwaysTenure_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2799 | return JNI_EINVAL(-6); |
| 2800 | } |
| 2801 | if (FLAG_SET_CMDLINE(MaxTenuringThreshold, markWord::max_age + 1)(JVMFlag::setOnCmdLine(Flag_MaxTenuringThreshold_enum), Flag_MaxTenuringThreshold_set ((markWord::max_age + 1), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2802 | return JNI_EINVAL(-6); |
| 2803 | } |
| 2804 | } else if (match_option(option, "-XX:+AlwaysTenure")) { |
| 2805 | if (FLAG_SET_CMDLINE(NeverTenure, false)(JVMFlag::setOnCmdLine(Flag_NeverTenure_enum), Flag_NeverTenure_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2806 | return JNI_EINVAL(-6); |
| 2807 | } |
| 2808 | if (FLAG_SET_CMDLINE(AlwaysTenure, true)(JVMFlag::setOnCmdLine(Flag_AlwaysTenure_enum), Flag_AlwaysTenure_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2809 | return JNI_EINVAL(-6); |
| 2810 | } |
| 2811 | if (FLAG_SET_CMDLINE(MaxTenuringThreshold, 0)(JVMFlag::setOnCmdLine(Flag_MaxTenuringThreshold_enum), Flag_MaxTenuringThreshold_set ((0), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2812 | return JNI_EINVAL(-6); |
| 2813 | } |
| 2814 | } else if (match_option(option, "-XX:MaxTenuringThreshold=", &tail)) { |
| 2815 | uintx max_tenuring_thresh = 0; |
| 2816 | if (!parse_uintx(tail, &max_tenuring_thresh, 0)) { |
| 2817 | jio_fprintf(defaultStream::error_stream(), |
| 2818 | "Improperly specified VM option \'MaxTenuringThreshold=%s\'\n", tail); |
| 2819 | return JNI_EINVAL(-6); |
| 2820 | } |
| 2821 | |
| 2822 | if (FLAG_SET_CMDLINE(MaxTenuringThreshold, max_tenuring_thresh)(JVMFlag::setOnCmdLine(Flag_MaxTenuringThreshold_enum), Flag_MaxTenuringThreshold_set ((max_tenuring_thresh), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2823 | return JNI_EINVAL(-6); |
| 2824 | } |
| 2825 | |
| 2826 | if (MaxTenuringThreshold == 0) { |
| 2827 | if (FLAG_SET_CMDLINE(NeverTenure, false)(JVMFlag::setOnCmdLine(Flag_NeverTenure_enum), Flag_NeverTenure_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2828 | return JNI_EINVAL(-6); |
| 2829 | } |
| 2830 | if (FLAG_SET_CMDLINE(AlwaysTenure, true)(JVMFlag::setOnCmdLine(Flag_AlwaysTenure_enum), Flag_AlwaysTenure_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2831 | return JNI_EINVAL(-6); |
| 2832 | } |
| 2833 | } else { |
| 2834 | if (FLAG_SET_CMDLINE(NeverTenure, false)(JVMFlag::setOnCmdLine(Flag_NeverTenure_enum), Flag_NeverTenure_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2835 | return JNI_EINVAL(-6); |
| 2836 | } |
| 2837 | if (FLAG_SET_CMDLINE(AlwaysTenure, false)(JVMFlag::setOnCmdLine(Flag_AlwaysTenure_enum), Flag_AlwaysTenure_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2838 | return JNI_EINVAL(-6); |
| 2839 | } |
| 2840 | } |
| 2841 | } else if (match_option(option, "-XX:+DisplayVMOutputToStderr")) { |
| 2842 | if (FLAG_SET_CMDLINE(DisplayVMOutputToStdout, false)(JVMFlag::setOnCmdLine(Flag_DisplayVMOutputToStdout_enum), Flag_DisplayVMOutputToStdout_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2843 | return JNI_EINVAL(-6); |
| 2844 | } |
| 2845 | if (FLAG_SET_CMDLINE(DisplayVMOutputToStderr, true)(JVMFlag::setOnCmdLine(Flag_DisplayVMOutputToStderr_enum), Flag_DisplayVMOutputToStderr_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2846 | return JNI_EINVAL(-6); |
| 2847 | } |
| 2848 | } else if (match_option(option, "-XX:+DisplayVMOutputToStdout")) { |
| 2849 | if (FLAG_SET_CMDLINE(DisplayVMOutputToStderr, false)(JVMFlag::setOnCmdLine(Flag_DisplayVMOutputToStderr_enum), Flag_DisplayVMOutputToStderr_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2850 | return JNI_EINVAL(-6); |
| 2851 | } |
| 2852 | if (FLAG_SET_CMDLINE(DisplayVMOutputToStdout, true)(JVMFlag::setOnCmdLine(Flag_DisplayVMOutputToStdout_enum), Flag_DisplayVMOutputToStdout_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2853 | return JNI_EINVAL(-6); |
| 2854 | } |
| 2855 | } else if (match_option(option, "-XX:+ErrorFileToStderr")) { |
| 2856 | if (FLAG_SET_CMDLINE(ErrorFileToStdout, false)(JVMFlag::setOnCmdLine(Flag_ErrorFileToStdout_enum), Flag_ErrorFileToStdout_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2857 | return JNI_EINVAL(-6); |
| 2858 | } |
| 2859 | if (FLAG_SET_CMDLINE(ErrorFileToStderr, true)(JVMFlag::setOnCmdLine(Flag_ErrorFileToStderr_enum), Flag_ErrorFileToStderr_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2860 | return JNI_EINVAL(-6); |
| 2861 | } |
| 2862 | } else if (match_option(option, "-XX:+ErrorFileToStdout")) { |
| 2863 | if (FLAG_SET_CMDLINE(ErrorFileToStderr, false)(JVMFlag::setOnCmdLine(Flag_ErrorFileToStderr_enum), Flag_ErrorFileToStderr_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2864 | return JNI_EINVAL(-6); |
| 2865 | } |
| 2866 | if (FLAG_SET_CMDLINE(ErrorFileToStdout, true)(JVMFlag::setOnCmdLine(Flag_ErrorFileToStdout_enum), Flag_ErrorFileToStdout_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2867 | return JNI_EINVAL(-6); |
| 2868 | } |
| 2869 | } else if (match_option(option, "--finalization=", &tail)) { |
| 2870 | if (strcmp(tail, "enabled") == 0) { |
| 2871 | InstanceKlass::set_finalization_enabled(true); |
| 2872 | } else if (strcmp(tail, "disabled") == 0) { |
| 2873 | InstanceKlass::set_finalization_enabled(false); |
| 2874 | } else { |
| 2875 | jio_fprintf(defaultStream::error_stream(), |
| 2876 | "Invalid finalization value '%s', must be 'disabled' or 'enabled'.\n", |
| 2877 | tail); |
| 2878 | return JNI_EINVAL(-6); |
| 2879 | } |
| 2880 | } else if (match_option(option, "-XX:+ExtendedDTraceProbes")) { |
| 2881 | #if defined(DTRACE_ENABLED) |
| 2882 | if (FLAG_SET_CMDLINE(ExtendedDTraceProbes, true)(JVMFlag::setOnCmdLine(Flag_ExtendedDTraceProbes_enum), Flag_ExtendedDTraceProbes_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2883 | return JNI_EINVAL(-6); |
| 2884 | } |
| 2885 | if (FLAG_SET_CMDLINE(DTraceMethodProbes, true)(JVMFlag::setOnCmdLine(Flag_DTraceMethodProbes_enum), Flag_DTraceMethodProbes_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2886 | return JNI_EINVAL(-6); |
| 2887 | } |
| 2888 | if (FLAG_SET_CMDLINE(DTraceAllocProbes, true)(JVMFlag::setOnCmdLine(Flag_DTraceAllocProbes_enum), Flag_DTraceAllocProbes_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2889 | return JNI_EINVAL(-6); |
| 2890 | } |
| 2891 | if (FLAG_SET_CMDLINE(DTraceMonitorProbes, true)(JVMFlag::setOnCmdLine(Flag_DTraceMonitorProbes_enum), Flag_DTraceMonitorProbes_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2892 | return JNI_EINVAL(-6); |
| 2893 | } |
| 2894 | #else // defined(DTRACE_ENABLED) |
| 2895 | jio_fprintf(defaultStream::error_stream(), |
| 2896 | "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
| 2897 | return JNI_EINVAL(-6); |
| 2898 | #endif // defined(DTRACE_ENABLED) |
| 2899 | #ifdef ASSERT1 |
| 2900 | } else if (match_option(option, "-XX:+FullGCALot")) { |
| 2901 | if (FLAG_SET_CMDLINE(FullGCALot, true)(JVMFlag::setOnCmdLine(Flag_FullGCALot_enum), Flag_FullGCALot_set ((true), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2902 | return JNI_EINVAL(-6); |
| 2903 | } |
| 2904 | // disable scavenge before parallel mark-compact |
| 2905 | if (FLAG_SET_CMDLINE(ScavengeBeforeFullGC, false)(JVMFlag::setOnCmdLine(Flag_ScavengeBeforeFullGC_enum), Flag_ScavengeBeforeFullGC_set ((false), JVMFlagOrigin::COMMAND_LINE)) != JVMFlag::SUCCESS) { |
| 2906 | return JNI_EINVAL(-6); |
| 2907 | } |
| 2908 | #endif |
| 2909 | #if !INCLUDE_MANAGEMENT1 |
| 2910 | } else if (match_option(option, "-XX:+ManagementServer")) { |
| 2911 | jio_fprintf(defaultStream::error_stream(), |
| 2912 | "ManagementServer is not supported in this VM.\n"); |
| 2913 | return JNI_ERR(-1); |
| 2914 | #endif // INCLUDE_MANAGEMENT |
| 2915 | #if INCLUDE_JVMCI1 |
| 2916 | } else if (match_option(option, "-XX:-EnableJVMCIProduct")) { |
| 2917 | if (EnableJVMCIProduct) { |
| 2918 | jio_fprintf(defaultStream::error_stream(), |
| 2919 | "-XX:-EnableJVMCIProduct cannot come after -XX:+EnableJVMCIProduct\n"); |
| 2920 | return JNI_EINVAL(-6); |
| 2921 | } |
| 2922 | } else if (match_option(option, "-XX:+EnableJVMCIProduct")) { |
| 2923 | // Just continue, since "-XX:+EnableJVMCIProduct" has been specified before |
| 2924 | if (EnableJVMCIProduct) { |
| 2925 | continue; |
| 2926 | } |
| 2927 | JVMFlag *jvmciFlag = JVMFlag::find_flag("EnableJVMCIProduct"); |
| 2928 | // Allow this flag if it has been unlocked. |
| 2929 | if (jvmciFlag != NULL__null && jvmciFlag->is_unlocked()) { |
| 2930 | if (!JVMCIGlobals::enable_jvmci_product_mode(origin)) { |
| 2931 | jio_fprintf(defaultStream::error_stream(), |
| 2932 | "Unable to enable JVMCI in product mode"); |
| 2933 | return JNI_ERR(-1); |
| 2934 | } |
| 2935 | } |
| 2936 | // The flag was locked so process normally to report that error |
| 2937 | else if (!process_argument("EnableJVMCIProduct", args->ignoreUnrecognized, origin)) { |
| 2938 | return JNI_EINVAL(-6); |
| 2939 | } |
| 2940 | #endif // INCLUDE_JVMCI |
| 2941 | #if INCLUDE_JFR1 |
| 2942 | } else if (match_jfr_option(&option)) { |
| 2943 | return JNI_EINVAL(-6); |
| 2944 | #endif |
| 2945 | } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 2946 | // Skip -XX:Flags= and -XX:VMOptionsFile= since those cases have |
| 2947 | // already been handled |
| 2948 | if ((strncmp(tail, "Flags=", strlen("Flags=")) != 0) && |
| 2949 | (strncmp(tail, "VMOptionsFile=", strlen("VMOptionsFile=")) != 0)) { |
| 2950 | if (!process_argument(tail, args->ignoreUnrecognized, origin)) { |
| 2951 | return JNI_EINVAL(-6); |
| 2952 | } |
| 2953 | } |
| 2954 | // Unknown option |
| 2955 | } else if (is_bad_option(option, args->ignoreUnrecognized)) { |
| 2956 | return JNI_ERR(-1); |
| 2957 | } |
| 2958 | } |
| 2959 | |
| 2960 | // PrintSharedArchiveAndExit will turn on |
| 2961 | // -Xshare:on |
| 2962 | // -Xlog:class+path=info |
| 2963 | if (PrintSharedArchiveAndExit) { |
| 2964 | UseSharedSpaces = true; |
| 2965 | RequireSharedSpaces = true; |
| 2966 | LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(class, path)(LogTag::_class), (LogTag::_path), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 2967 | } |
| 2968 | |
| 2969 | fix_appclasspath(); |
| 2970 | |
| 2971 | return JNI_OK0; |
| 2972 | } |
| 2973 | |
| 2974 | void Arguments::add_patch_mod_prefix(const char* module_name, const char* path, bool* patch_mod_javabase) { |
| 2975 | // For java.base check for duplicate --patch-module options being specified on the command line. |
| 2976 | // This check is only required for java.base, all other duplicate module specifications |
| 2977 | // will be checked during module system initialization. The module system initialization |
| 2978 | // will throw an ExceptionInInitializerError if this situation occurs. |
| 2979 | if (strcmp(module_name, JAVA_BASE_NAME"java.base") == 0) { |
| 2980 | if (*patch_mod_javabase) { |
| 2981 | vm_exit_during_initialization("Cannot specify " JAVA_BASE_NAME"java.base" " more than once to --patch-module"); |
| 2982 | } else { |
| 2983 | *patch_mod_javabase = true; |
| 2984 | } |
| 2985 | } |
| 2986 | |
| 2987 | // Create GrowableArray lazily, only if --patch-module has been specified |
| 2988 | if (_patch_mod_prefix == NULL__null) { |
| 2989 | _patch_mod_prefix = new (ResourceObj::C_HEAP, mtArguments) GrowableArray<ModulePatchPath*>(10, mtArguments); |
| 2990 | } |
| 2991 | |
| 2992 | _patch_mod_prefix->push(new ModulePatchPath(module_name, path)); |
| 2993 | } |
| 2994 | |
| 2995 | // Remove all empty paths from the app classpath (if IgnoreEmptyClassPaths is enabled) |
| 2996 | // |
| 2997 | // This is necessary because some apps like to specify classpath like -cp foo.jar:${XYZ}:bar.jar |
| 2998 | // in their start-up scripts. If XYZ is empty, the classpath will look like "-cp foo.jar::bar.jar". |
| 2999 | // Java treats such empty paths as if the user specified "-cp foo.jar:.:bar.jar". I.e., an empty |
| 3000 | // path is treated as the current directory. |
| 3001 | // |
| 3002 | // This causes problems with CDS, which requires that all directories specified in the classpath |
| 3003 | // must be empty. In most cases, applications do NOT want to load classes from the current |
| 3004 | // directory anyway. Adding -XX:+IgnoreEmptyClassPaths will make these applications' start-up |
| 3005 | // scripts compatible with CDS. |
| 3006 | void Arguments::fix_appclasspath() { |
| 3007 | if (IgnoreEmptyClassPaths) { |
| 3008 | const char separator = *os::path_separator(); |
| 3009 | const char* src = _java_class_path->value(); |
| 3010 | |
| 3011 | // skip over all the leading empty paths |
| 3012 | while (*src == separator) { |
| 3013 | src ++; |
| 3014 | } |
| 3015 | |
| 3016 | char* copy = os::strdup_check_oom(src, mtArguments); |
| 3017 | |
| 3018 | // trim all trailing empty paths |
| 3019 | for (char* tail = copy + strlen(copy) - 1; tail >= copy && *tail == separator; tail--) { |
| 3020 | *tail = '\0'; |
| 3021 | } |
| 3022 | |
| 3023 | char from[3] = {separator, separator, '\0'}; |
| 3024 | char to [2] = {separator, '\0'}; |
| 3025 | while (StringUtils::replace_no_expand(copy, from, to) > 0) { |
| 3026 | // Keep replacing "::" -> ":" until we have no more "::" (non-windows) |
| 3027 | // Keep replacing ";;" -> ";" until we have no more ";;" (windows) |
| 3028 | } |
| 3029 | |
| 3030 | _java_class_path->set_writeable_value(copy); |
| 3031 | FreeHeap(copy); // a copy was made by set_value, so don't need this anymore |
| 3032 | } |
| 3033 | } |
| 3034 | |
| 3035 | jint Arguments::finalize_vm_init_args(bool patch_mod_javabase) { |
| 3036 | // check if the default lib/endorsed directory exists; if so, error |
| 3037 | char path[JVM_MAXPATHLEN4096 + 1]; |
| 3038 | const char* fileSep = os::file_separator(); |
| 3039 | jio_snprintf(path, JVM_MAXPATHLEN4096 + 1, "%s%slib%sendorsed", Arguments::get_java_home(), fileSep, fileSep); |
| 3040 | |
| 3041 | DIR* dir = os::opendir(path); |
| 3042 | if (dir != NULL__null) { |
| 3043 | jio_fprintf(defaultStream::output_stream(), |
| 3044 | "<JAVA_HOME>/lib/endorsed is not supported. Endorsed standards and standalone APIs\n" |
| 3045 | "in modular form will be supported via the concept of upgradeable modules.\n"); |
| 3046 | os::closedir(dir); |
| 3047 | return JNI_ERR(-1); |
| 3048 | } |
| 3049 | |
| 3050 | jio_snprintf(path, JVM_MAXPATHLEN4096 + 1, "%s%slib%sext", Arguments::get_java_home(), fileSep, fileSep); |
| 3051 | dir = os::opendir(path); |
| 3052 | if (dir != NULL__null) { |
| 3053 | jio_fprintf(defaultStream::output_stream(), |
| 3054 | "<JAVA_HOME>/lib/ext exists, extensions mechanism no longer supported; " |
| 3055 | "Use -classpath instead.\n."); |
| 3056 | os::closedir(dir); |
| 3057 | return JNI_ERR(-1); |
| 3058 | } |
| 3059 | |
| 3060 | // This must be done after all arguments have been processed |
| 3061 | // and the container support has been initialized since AggressiveHeap |
| 3062 | // relies on the amount of total memory available. |
| 3063 | if (AggressiveHeap) { |
| 3064 | jint result = set_aggressive_heap_flags(); |
| 3065 | if (result != JNI_OK0) { |
| 3066 | return result; |
| 3067 | } |
| 3068 | } |
| 3069 | |
| 3070 | // This must be done after all arguments have been processed. |
| 3071 | // java_compiler() true means set to "NONE" or empty. |
| 3072 | if (java_compiler() && !xdebug_mode()) { |
| 3073 | // For backwards compatibility, we switch to interpreted mode if |
| 3074 | // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was |
| 3075 | // not specified. |
| 3076 | set_mode_flags(_int); |
| 3077 | } |
| 3078 | |
| 3079 | // CompileThresholdScaling == 0.0 is same as -Xint: Disable compilation (enable interpreter-only mode), |
| 3080 | // but like -Xint, leave compilation thresholds unaffected. |
| 3081 | // With tiered compilation disabled, setting CompileThreshold to 0 disables compilation as well. |
| 3082 | if ((CompileThresholdScaling == 0.0) || (!TieredCompilation && CompileThreshold == 0)) { |
| 3083 | set_mode_flags(_int); |
| 3084 | } |
| 3085 | |
| 3086 | #ifdef ZERO |
| 3087 | // Zero always runs in interpreted mode |
| 3088 | set_mode_flags(_int); |
| 3089 | #endif |
| 3090 | |
| 3091 | // eventually fix up InitialTenuringThreshold if only MaxTenuringThreshold is set |
| 3092 | if (FLAG_IS_DEFAULT(InitialTenuringThreshold)(JVMFlag::is_default(Flag_InitialTenuringThreshold_enum)) && (InitialTenuringThreshold > MaxTenuringThreshold)) { |
| 3093 | FLAG_SET_ERGO(InitialTenuringThreshold, MaxTenuringThreshold)(Flag_InitialTenuringThreshold_set((MaxTenuringThreshold), JVMFlagOrigin ::ERGONOMIC)); |
| 3094 | } |
| 3095 | |
| 3096 | #if !COMPILER2_OR_JVMCI1 |
| 3097 | // Don't degrade server performance for footprint |
| 3098 | if (FLAG_IS_DEFAULT(UseLargePages)(JVMFlag::is_default(Flag_UseLargePages_enum)) && |
| 3099 | MaxHeapSize < LargePageHeapSizeThreshold) { |
| 3100 | // No need for large granularity pages w/small heaps. |
| 3101 | // Note that large pages are enabled/disabled for both the |
| 3102 | // Java heap and the code cache. |
| 3103 | FLAG_SET_DEFAULT(UseLargePages, false)((UseLargePages) = (false)); |
| 3104 | } |
| 3105 | |
| 3106 | UNSUPPORTED_OPTION(ProfileInterpreter)do { if (ProfileInterpreter) { if ((JVMFlag::is_cmdline(Flag_ProfileInterpreter_enum ))) { warning("-XX:+" "ProfileInterpreter" " not supported in this VM" ); } ((ProfileInterpreter) = (false)); } } while(0); |
| 3107 | #endif |
| 3108 | |
| 3109 | // Parse the CompilationMode flag |
| 3110 | if (!CompilationModeFlag::initialize()) { |
| 3111 | return JNI_ERR(-1); |
| 3112 | } |
| 3113 | |
| 3114 | if (!check_vm_args_consistency()) { |
| 3115 | return JNI_ERR(-1); |
| 3116 | } |
| 3117 | |
| 3118 | #if INCLUDE_CDS1 |
| 3119 | if (DumpSharedSpaces) { |
| 3120 | // Compiler threads may concurrently update the class metadata (such as method entries), so it's |
| 3121 | // unsafe with -Xshare:dump (which modifies the class metadata in place). Let's disable |
| 3122 | // compiler just to be safe. |
| 3123 | // |
| 3124 | // Note: this is not a concern for dynamically dumping shared spaces, which makes a copy of the |
| 3125 | // class metadata instead of modifying them in place. The copy is inaccessible to the compiler. |
| 3126 | // TODO: revisit the following for the static archive case. |
| 3127 | set_mode_flags(_int); |
| 3128 | } |
| 3129 | |
| 3130 | // RecordDynamicDumpInfo is not compatible with ArchiveClassesAtExit |
| 3131 | if (ArchiveClassesAtExit != NULL__null && RecordDynamicDumpInfo) { |
| 3132 | jio_fprintf(defaultStream::output_stream(), |
| 3133 | "-XX:+RecordDynamicDumpInfo cannot be used with -XX:ArchiveClassesAtExit.\n"); |
| 3134 | return JNI_ERR(-1); |
| 3135 | } |
| 3136 | |
| 3137 | if (ArchiveClassesAtExit == NULL__null && !RecordDynamicDumpInfo) { |
| 3138 | DynamicDumpSharedSpaces = false; |
| 3139 | } else { |
| 3140 | DynamicDumpSharedSpaces = true; |
| 3141 | } |
| 3142 | |
| 3143 | if (UseSharedSpaces && patch_mod_javabase) { |
| 3144 | no_shared_spaces("CDS is disabled when " JAVA_BASE_NAME"java.base" " module is patched."); |
| 3145 | } |
| 3146 | if (UseSharedSpaces && !DumpSharedSpaces && check_unsupported_cds_runtime_properties()) { |
| 3147 | UseSharedSpaces = false; |
| 3148 | } |
| 3149 | |
| 3150 | if (DumpSharedSpaces || DynamicDumpSharedSpaces) { |
| 3151 | // Always verify non-system classes during CDS dump |
| 3152 | if (!BytecodeVerificationRemote) { |
| 3153 | BytecodeVerificationRemote = true; |
| 3154 | log_info(cds)(!(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) ? (void)0 : LogImpl<(LogTag ::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Info>("All non-system classes will be verified (-Xverify:remote) during CDS dump time."); |
| 3155 | } |
| 3156 | } |
| 3157 | #endif |
| 3158 | |
| 3159 | #ifndef CAN_SHOW_REGISTERS_ON_ASSERT |
| 3160 | UNSUPPORTED_OPTION(ShowRegistersOnAssert)do { if (ShowRegistersOnAssert) { if ((JVMFlag::is_cmdline(Flag_ShowRegistersOnAssert_enum ))) { warning("-XX:+" "ShowRegistersOnAssert" " not supported in this VM" ); } ((ShowRegistersOnAssert) = (false)); } } while(0); |
| 3161 | #endif // CAN_SHOW_REGISTERS_ON_ASSERT |
| 3162 | |
| 3163 | return JNI_OK0; |
| 3164 | } |
| 3165 | |
| 3166 | // Helper class for controlling the lifetime of JavaVMInitArgs |
| 3167 | // objects. The contents of the JavaVMInitArgs are guaranteed to be |
| 3168 | // deleted on the destruction of the ScopedVMInitArgs object. |
| 3169 | class ScopedVMInitArgs : public StackObj { |
| 3170 | private: |
| 3171 | JavaVMInitArgs _args; |
| 3172 | char* _container_name; |
| 3173 | bool _is_set; |
| 3174 | char* _vm_options_file_arg; |
| 3175 | |
| 3176 | public: |
| 3177 | ScopedVMInitArgs(const char *container_name) { |
| 3178 | _args.version = JNI_VERSION_1_20x00010002; |
| 3179 | _args.nOptions = 0; |
| 3180 | _args.options = NULL__null; |
| 3181 | _args.ignoreUnrecognized = false; |
| 3182 | _container_name = (char *)container_name; |
| 3183 | _is_set = false; |
| 3184 | _vm_options_file_arg = NULL__null; |
| 3185 | } |
| 3186 | |
| 3187 | // Populates the JavaVMInitArgs object represented by this |
| 3188 | // ScopedVMInitArgs object with the arguments in options. The |
| 3189 | // allocated memory is deleted by the destructor. If this method |
| 3190 | // returns anything other than JNI_OK, then this object is in a |
| 3191 | // partially constructed state, and should be abandoned. |
| 3192 | jint set_args(const GrowableArrayView<JavaVMOption>* options) { |
| 3193 | _is_set = true; |
| 3194 | JavaVMOption* options_arr = NEW_C_HEAP_ARRAY_RETURN_NULL((JavaVMOption*) (AllocateHeap(((options->length())) * sizeof (JavaVMOption), mtArguments, AllocFailStrategy::RETURN_NULL)) |
| 3195 | JavaVMOption, options->length(), mtArguments)(JavaVMOption*) (AllocateHeap(((options->length())) * sizeof (JavaVMOption), mtArguments, AllocFailStrategy::RETURN_NULL)); |
| 3196 | if (options_arr == NULL__null) { |
| 3197 | return JNI_ENOMEM(-4); |
| 3198 | } |
| 3199 | _args.options = options_arr; |
| 3200 | |
| 3201 | for (int i = 0; i < options->length(); i++) { |
| 3202 | options_arr[i] = options->at(i); |
| 3203 | options_arr[i].optionString = os::strdup(options_arr[i].optionString); |
| 3204 | if (options_arr[i].optionString == NULL__null) { |
| 3205 | // Rely on the destructor to do cleanup. |
| 3206 | _args.nOptions = i; |
| 3207 | return JNI_ENOMEM(-4); |
| 3208 | } |
| 3209 | } |
| 3210 | |
| 3211 | _args.nOptions = options->length(); |
| 3212 | _args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 3213 | return JNI_OK0; |
| 3214 | } |
| 3215 | |
| 3216 | JavaVMInitArgs* get() { return &_args; } |
| 3217 | char* container_name() { return _container_name; } |
| 3218 | bool is_set() { return _is_set; } |
| 3219 | bool found_vm_options_file_arg() { return _vm_options_file_arg != NULL__null; } |
| 3220 | char* vm_options_file_arg() { return _vm_options_file_arg; } |
| 3221 | |
| 3222 | void set_vm_options_file_arg(const char *vm_options_file_arg) { |
| 3223 | if (_vm_options_file_arg != NULL__null) { |
| 3224 | os::free(_vm_options_file_arg); |
| 3225 | } |
| 3226 | _vm_options_file_arg = os::strdup_check_oom(vm_options_file_arg); |
| 3227 | } |
| 3228 | |
| 3229 | ~ScopedVMInitArgs() { |
| 3230 | if (_vm_options_file_arg != NULL__null) { |
| 3231 | os::free(_vm_options_file_arg); |
| 3232 | } |
| 3233 | if (_args.options == NULL__null) return; |
| 3234 | for (int i = 0; i < _args.nOptions; i++) { |
| 3235 | os::free(_args.options[i].optionString); |
| 3236 | } |
| 3237 | FREE_C_HEAP_ARRAY(JavaVMOption, _args.options)FreeHeap((char*)(_args.options)); |
| 3238 | } |
| 3239 | |
| 3240 | // Insert options into this option list, to replace option at |
| 3241 | // vm_options_file_pos (-XX:VMOptionsFile) |
| 3242 | jint insert(const JavaVMInitArgs* args, |
| 3243 | const JavaVMInitArgs* args_to_insert, |
| 3244 | const int vm_options_file_pos) { |
| 3245 | assert(_args.options == NULL, "shouldn't be set yet")do { if (!(_args.options == __null)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3245, "assert(" "_args.options == __null" ") failed", "shouldn't be set yet" ); ::breakpoint(); } } while (0); |
| 3246 | assert(args_to_insert->nOptions != 0, "there should be args to insert")do { if (!(args_to_insert->nOptions != 0)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3246, "assert(" "args_to_insert->nOptions != 0" ") failed" , "there should be args to insert"); ::breakpoint(); } } while (0); |
| 3247 | assert(vm_options_file_pos != -1, "vm_options_file_pos should be set")do { if (!(vm_options_file_pos != -1)) { (*g_assert_poison) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3247, "assert(" "vm_options_file_pos != -1" ") failed", "vm_options_file_pos should be set" ); ::breakpoint(); } } while (0); |
| 3248 | |
| 3249 | int length = args->nOptions + args_to_insert->nOptions - 1; |
| 3250 | // Construct new option array |
| 3251 | GrowableArrayCHeap<JavaVMOption, mtArguments> options(length); |
| 3252 | for (int i = 0; i < args->nOptions; i++) { |
| 3253 | if (i == vm_options_file_pos) { |
| 3254 | // insert the new options starting at the same place as the |
| 3255 | // -XX:VMOptionsFile option |
| 3256 | for (int j = 0; j < args_to_insert->nOptions; j++) { |
| 3257 | options.push(args_to_insert->options[j]); |
| 3258 | } |
| 3259 | } else { |
| 3260 | options.push(args->options[i]); |
| 3261 | } |
| 3262 | } |
| 3263 | // make into options array |
| 3264 | return set_args(&options); |
| 3265 | } |
| 3266 | }; |
| 3267 | |
| 3268 | jint Arguments::parse_java_options_environment_variable(ScopedVMInitArgs* args) { |
| 3269 | return parse_options_environment_variable("_JAVA_OPTIONS", args); |
| 3270 | } |
| 3271 | |
| 3272 | jint Arguments::parse_java_tool_options_environment_variable(ScopedVMInitArgs* args) { |
| 3273 | return parse_options_environment_variable("JAVA_TOOL_OPTIONS", args); |
| 3274 | } |
| 3275 | |
| 3276 | jint Arguments::parse_options_environment_variable(const char* name, |
| 3277 | ScopedVMInitArgs* vm_args) { |
| 3278 | char *buffer = ::getenv(name); |
| 3279 | |
| 3280 | // Don't check this environment variable if user has special privileges |
| 3281 | // (e.g. unix su command). |
| 3282 | if (buffer == NULL__null || os::have_special_privileges()) { |
| 3283 | return JNI_OK0; |
| 3284 | } |
| 3285 | |
| 3286 | if ((buffer = os::strdup(buffer)) == NULL__null) { |
| 3287 | return JNI_ENOMEM(-4); |
| 3288 | } |
| 3289 | |
| 3290 | jio_fprintf(defaultStream::error_stream(), |
| 3291 | "Picked up %s: %s\n", name, buffer); |
| 3292 | |
| 3293 | int retcode = parse_options_buffer(name, buffer, strlen(buffer), vm_args); |
| 3294 | |
| 3295 | os::free(buffer); |
| 3296 | return retcode; |
| 3297 | } |
| 3298 | |
| 3299 | jint Arguments::parse_vm_options_file(const char* file_name, ScopedVMInitArgs* vm_args) { |
| 3300 | // read file into buffer |
| 3301 | int fd = ::open(file_name, O_RDONLY00); |
| 3302 | if (fd < 0) { |
| 3303 | jio_fprintf(defaultStream::error_stream(), |
| 3304 | "Could not open options file '%s'\n", |
| 3305 | file_name); |
| 3306 | return JNI_ERR(-1); |
| 3307 | } |
| 3308 | |
| 3309 | struct stat stbuf; |
| 3310 | int retcode = os::stat(file_name, &stbuf); |
| 3311 | if (retcode != 0) { |
| 3312 | jio_fprintf(defaultStream::error_stream(), |
| 3313 | "Could not stat options file '%s'\n", |
| 3314 | file_name); |
| 3315 | os::close(fd); |
| 3316 | return JNI_ERR(-1); |
| 3317 | } |
| 3318 | |
| 3319 | if (stbuf.st_size == 0) { |
| 3320 | // tell caller there is no option data and that is ok |
| 3321 | os::close(fd); |
| 3322 | return JNI_OK0; |
| 3323 | } |
| 3324 | |
| 3325 | // '+ 1' for NULL termination even with max bytes |
| 3326 | size_t bytes_alloc = stbuf.st_size + 1; |
| 3327 | |
| 3328 | char *buf = NEW_C_HEAP_ARRAY_RETURN_NULL(char, bytes_alloc, mtArguments)(char*) (AllocateHeap(((bytes_alloc)) * sizeof(char), mtArguments , AllocFailStrategy::RETURN_NULL)); |
| 3329 | if (NULL__null == buf) { |
| 3330 | jio_fprintf(defaultStream::error_stream(), |
| 3331 | "Could not allocate read buffer for options file parse\n"); |
| 3332 | os::close(fd); |
| 3333 | return JNI_ENOMEM(-4); |
| 3334 | } |
| 3335 | |
| 3336 | memset(buf, 0, bytes_alloc); |
| 3337 | |
| 3338 | // Fill buffer |
| 3339 | ssize_t bytes_read = os::read(fd, (void *)buf, (unsigned)bytes_alloc); |
| 3340 | os::close(fd); |
| 3341 | if (bytes_read < 0) { |
| 3342 | FREE_C_HEAP_ARRAY(char, buf)FreeHeap((char*)(buf)); |
| 3343 | jio_fprintf(defaultStream::error_stream(), |
| 3344 | "Could not read options file '%s'\n", file_name); |
| 3345 | return JNI_ERR(-1); |
| 3346 | } |
| 3347 | |
| 3348 | if (bytes_read == 0) { |
| 3349 | // tell caller there is no option data and that is ok |
| 3350 | FREE_C_HEAP_ARRAY(char, buf)FreeHeap((char*)(buf)); |
| 3351 | return JNI_OK0; |
| 3352 | } |
| 3353 | |
| 3354 | retcode = parse_options_buffer(file_name, buf, bytes_read, vm_args); |
| 3355 | |
| 3356 | FREE_C_HEAP_ARRAY(char, buf)FreeHeap((char*)(buf)); |
| 3357 | return retcode; |
| 3358 | } |
| 3359 | |
| 3360 | jint Arguments::parse_options_buffer(const char* name, char* buffer, const size_t buf_len, ScopedVMInitArgs* vm_args) { |
| 3361 | // Construct option array |
| 3362 | GrowableArrayCHeap<JavaVMOption, mtArguments> options(2); |
| 3363 | |
| 3364 | // some pointers to help with parsing |
| 3365 | char *buffer_end = buffer + buf_len; |
| 3366 | char *opt_hd = buffer; |
| 3367 | char *wrt = buffer; |
| 3368 | char *rd = buffer; |
| 3369 | |
| 3370 | // parse all options |
| 3371 | while (rd < buffer_end) { |
| 3372 | // skip leading white space from the input string |
| 3373 | while (rd < buffer_end && isspace(*rd)) { |
| 3374 | rd++; |
| 3375 | } |
| 3376 | |
| 3377 | if (rd >= buffer_end) { |
| 3378 | break; |
| 3379 | } |
| 3380 | |
| 3381 | // Remember this is where we found the head of the token. |
| 3382 | opt_hd = wrt; |
| 3383 | |
| 3384 | // Tokens are strings of non white space characters separated |
| 3385 | // by one or more white spaces. |
| 3386 | while (rd < buffer_end && !isspace(*rd)) { |
| 3387 | if (*rd == '\'' || *rd == '"') { // handle a quoted string |
| 3388 | int quote = *rd; // matching quote to look for |
| 3389 | rd++; // don't copy open quote |
| 3390 | while (rd < buffer_end && *rd != quote) { |
| 3391 | // include everything (even spaces) |
| 3392 | // up until the close quote |
| 3393 | *wrt++ = *rd++; // copy to option string |
| 3394 | } |
| 3395 | |
| 3396 | if (rd < buffer_end) { |
| 3397 | rd++; // don't copy close quote |
| 3398 | } else { |
| 3399 | // did not see closing quote |
| 3400 | jio_fprintf(defaultStream::error_stream(), |
| 3401 | "Unmatched quote in %s\n", name); |
| 3402 | return JNI_ERR(-1); |
| 3403 | } |
| 3404 | } else { |
| 3405 | *wrt++ = *rd++; // copy to option string |
| 3406 | } |
| 3407 | } |
| 3408 | |
| 3409 | // steal a white space character and set it to NULL |
| 3410 | *wrt++ = '\0'; |
| 3411 | // We now have a complete token |
| 3412 | |
| 3413 | JavaVMOption option; |
| 3414 | option.optionString = opt_hd; |
| 3415 | option.extraInfo = NULL__null; |
| 3416 | |
| 3417 | options.append(option); // Fill in option |
| 3418 | |
| 3419 | rd++; // Advance to next character |
| 3420 | } |
| 3421 | |
| 3422 | // Fill out JavaVMInitArgs structure. |
| 3423 | return vm_args->set_args(&options); |
| 3424 | } |
| 3425 | |
| 3426 | void Arguments::set_shared_spaces_flags_and_archive_paths() { |
| 3427 | if (DumpSharedSpaces) { |
| 3428 | if (RequireSharedSpaces) { |
| 3429 | warning("Cannot dump shared archive while using shared archive"); |
| 3430 | } |
| 3431 | UseSharedSpaces = false; |
| 3432 | } |
| 3433 | #if INCLUDE_CDS1 |
| 3434 | // Initialize shared archive paths which could include both base and dynamic archive paths |
| 3435 | // This must be after set_ergonomics_flags() called so flag UseCompressedOops is set properly. |
| 3436 | // |
| 3437 | // UseSharedSpaces may be disabled if -XX:SharedArchiveFile is invalid. |
| 3438 | if (DumpSharedSpaces || UseSharedSpaces) { |
| 3439 | init_shared_archive_paths(); |
| 3440 | } |
| 3441 | #endif // INCLUDE_CDS |
| 3442 | } |
| 3443 | |
| 3444 | #if INCLUDE_CDS1 |
| 3445 | // Sharing support |
| 3446 | // Construct the path to the archive |
| 3447 | char* Arguments::get_default_shared_archive_path() { |
| 3448 | char *default_archive_path; |
| 3449 | char jvm_path[JVM_MAXPATHLEN4096 + 1]; |
| 3450 | os::jvm_path(jvm_path, sizeof(jvm_path)); |
| 3451 | char *end = strrchr(jvm_path, *os::file_separator()); |
| 3452 | if (end != NULL__null) *end = '\0'; |
| 3453 | size_t jvm_path_len = strlen(jvm_path); |
| 3454 | size_t file_sep_len = strlen(os::file_separator()); |
| 3455 | const size_t len = jvm_path_len + file_sep_len + 20; |
| 3456 | default_archive_path = NEW_C_HEAP_ARRAY(char, len, mtArguments)(char*) (AllocateHeap((len) * sizeof(char), mtArguments)); |
| 3457 | jio_snprintf(default_archive_path, len, |
| 3458 | LP64_ONLY(!UseCompressedOops ? "%s%sclasses_nocoops.jsa":)!UseCompressedOops ? "%s%sclasses_nocoops.jsa": "%s%sclasses.jsa", |
| 3459 | jvm_path, os::file_separator()); |
| 3460 | return default_archive_path; |
| 3461 | } |
| 3462 | |
| 3463 | int Arguments::num_archives(const char* archive_path) { |
| 3464 | if (archive_path == NULL__null) { |
| 3465 | return 0; |
| 3466 | } |
| 3467 | int npaths = 1; |
| 3468 | char* p = (char*)archive_path; |
| 3469 | while (*p != '\0') { |
| 3470 | if (*p == os::path_separator()[0]) { |
| 3471 | npaths++; |
| 3472 | } |
| 3473 | p++; |
| 3474 | } |
| 3475 | return npaths; |
| 3476 | } |
| 3477 | |
| 3478 | void Arguments::extract_shared_archive_paths(const char* archive_path, |
| 3479 | char** base_archive_path, |
| 3480 | char** top_archive_path) { |
| 3481 | char* begin_ptr = (char*)archive_path; |
| 3482 | char* end_ptr = strchr((char*)archive_path, os::path_separator()[0]); |
| 3483 | if (end_ptr == NULL__null || end_ptr == begin_ptr) { |
| 3484 | vm_exit_during_initialization("Base archive was not specified", archive_path); |
| 3485 | } |
| 3486 | size_t len = end_ptr - begin_ptr; |
| 3487 | char* cur_path = NEW_C_HEAP_ARRAY(char, len + 1, mtInternal)(char*) (AllocateHeap((len + 1) * sizeof(char), mtInternal)); |
| 3488 | strncpy(cur_path, begin_ptr, len); |
| 3489 | cur_path[len] = '\0'; |
| 3490 | if (!FileMapInfo::check_archive((const char*)cur_path, true /*is_static*/)) { |
| 3491 | return; |
| 3492 | } |
| 3493 | *base_archive_path = cur_path; |
| 3494 | |
| 3495 | begin_ptr = ++end_ptr; |
| 3496 | if (*begin_ptr == '\0') { |
| 3497 | vm_exit_during_initialization("Top archive was not specified", archive_path); |
| 3498 | } |
| 3499 | end_ptr = strchr(begin_ptr, '\0'); |
| 3500 | assert(end_ptr != NULL, "sanity")do { if (!(end_ptr != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3500, "assert(" "end_ptr != __null" ") failed", "sanity"); :: breakpoint(); } } while (0); |
| 3501 | len = end_ptr - begin_ptr; |
| 3502 | cur_path = NEW_C_HEAP_ARRAY(char, len + 1, mtInternal)(char*) (AllocateHeap((len + 1) * sizeof(char), mtInternal)); |
| 3503 | strncpy(cur_path, begin_ptr, len + 1); |
| 3504 | if (!FileMapInfo::check_archive((const char*)cur_path, false /*is_static*/)) { |
| 3505 | return; |
| 3506 | } |
| 3507 | *top_archive_path = cur_path; |
| 3508 | } |
| 3509 | |
| 3510 | void Arguments::init_shared_archive_paths() { |
| 3511 | if (ArchiveClassesAtExit != nullptr) { |
| 3512 | assert(!RecordDynamicDumpInfo, "already checked")do { if (!(!RecordDynamicDumpInfo)) { (*g_assert_poison) = 'X' ;; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3512, "assert(" "!RecordDynamicDumpInfo" ") failed", "already checked" ); ::breakpoint(); } } while (0); |
| 3513 | if (DumpSharedSpaces) { |
| 3514 | vm_exit_during_initialization("-XX:ArchiveClassesAtExit cannot be used with -Xshare:dump"); |
| 3515 | } |
| 3516 | check_unsupported_dumping_properties(); |
| 3517 | } |
| 3518 | |
| 3519 | if (SharedArchiveFile == nullptr) { |
| 3520 | SharedArchivePath = get_default_shared_archive_path(); |
| 3521 | } else { |
| 3522 | int archives = num_archives(SharedArchiveFile); |
| 3523 | assert(archives > 0, "must be")do { if (!(archives > 0)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3523, "assert(" "archives > 0" ") failed", "must be"); :: breakpoint(); } } while (0); |
| 3524 | |
| 3525 | if (is_dumping_archive() && archives > 1) { |
| 3526 | vm_exit_during_initialization( |
| 3527 | "Cannot have more than 1 archive file specified in -XX:SharedArchiveFile during CDS dumping"); |
| 3528 | } |
| 3529 | |
| 3530 | if (DumpSharedSpaces) { |
| 3531 | assert(archives == 1, "must be")do { if (!(archives == 1)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3531, "assert(" "archives == 1" ") failed", "must be"); ::breakpoint (); } } while (0); |
| 3532 | // Static dump is simple: only one archive is allowed in SharedArchiveFile. This file |
| 3533 | // will be overwritten no matter regardless of its contents |
| 3534 | SharedArchivePath = os::strdup_check_oom(SharedArchiveFile, mtArguments); |
| 3535 | } else { |
| 3536 | // SharedArchiveFile may specify one or two files. In case (c), the path for base.jsa |
| 3537 | // is read from top.jsa |
| 3538 | // (a) 1 file: -XX:SharedArchiveFile=base.jsa |
| 3539 | // (b) 2 files: -XX:SharedArchiveFile=base.jsa:top.jsa |
| 3540 | // (c) 2 files: -XX:SharedArchiveFile=top.jsa |
| 3541 | // |
| 3542 | // However, if either RecordDynamicDumpInfo or ArchiveClassesAtExit is used, we do not |
| 3543 | // allow cases (b) and (c). Case (b) is already checked above. |
| 3544 | |
| 3545 | if (archives > 2) { |
| 3546 | vm_exit_during_initialization( |
| 3547 | "Cannot have more than 2 archive files specified in the -XX:SharedArchiveFile option"); |
| 3548 | } |
| 3549 | if (archives == 1) { |
| 3550 | char* base_archive_path = NULL__null; |
| 3551 | bool success = |
| 3552 | FileMapInfo::get_base_archive_name_from_header(SharedArchiveFile, &base_archive_path); |
| 3553 | if (!success) { |
| 3554 | no_shared_spaces("invalid archive"); |
| 3555 | } else if (base_archive_path == NULL__null) { |
| 3556 | // User has specified a single archive, which is a static archive. |
| 3557 | SharedArchivePath = const_cast<char *>(SharedArchiveFile); |
| 3558 | } else { |
| 3559 | // User has specified a single archive, which is a dynamic archive. |
| 3560 | SharedDynamicArchivePath = const_cast<char *>(SharedArchiveFile); |
| 3561 | SharedArchivePath = base_archive_path; // has been c-heap allocated. |
| 3562 | } |
| 3563 | } else { |
| 3564 | extract_shared_archive_paths((const char*)SharedArchiveFile, |
| 3565 | &SharedArchivePath, &SharedDynamicArchivePath); |
| 3566 | if (SharedArchivePath == NULL__null) { |
| 3567 | assert(SharedDynamicArchivePath == NULL, "must be")do { if (!(SharedDynamicArchivePath == __null)) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3567, "assert(" "SharedDynamicArchivePath == __null" ") failed" , "must be"); ::breakpoint(); } } while (0); |
| 3568 | no_shared_spaces("invalid archive"); |
| 3569 | } |
| 3570 | } |
| 3571 | |
| 3572 | if (SharedDynamicArchivePath != nullptr) { |
| 3573 | // Check for case (c) |
| 3574 | if (RecordDynamicDumpInfo) { |
| 3575 | vm_exit_during_initialization("-XX:+RecordDynamicDumpInfo is unsupported when a dynamic CDS archive is specified in -XX:SharedArchiveFile", |
| 3576 | SharedArchiveFile); |
| 3577 | } |
| 3578 | if (ArchiveClassesAtExit != nullptr) { |
| 3579 | vm_exit_during_initialization("-XX:ArchiveClassesAtExit is unsupported when a dynamic CDS archive is specified in -XX:SharedArchiveFile", |
| 3580 | SharedArchiveFile); |
| 3581 | } |
| 3582 | } |
| 3583 | |
| 3584 | if (ArchiveClassesAtExit != nullptr && os::same_files(SharedArchiveFile, ArchiveClassesAtExit)) { |
| 3585 | vm_exit_during_initialization( |
| 3586 | "Cannot have the same archive file specified for -XX:SharedArchiveFile and -XX:ArchiveClassesAtExit", |
| 3587 | SharedArchiveFile); |
| 3588 | } |
| 3589 | } |
| 3590 | } |
| 3591 | } |
| 3592 | #endif // INCLUDE_CDS |
| 3593 | |
| 3594 | #ifndef PRODUCT |
| 3595 | // Determine whether LogVMOutput should be implicitly turned on. |
| 3596 | static bool use_vm_log() { |
| 3597 | if (LogCompilation || !FLAG_IS_DEFAULT(LogFile)(JVMFlag::is_default(Flag_LogFile_enum)) || |
| 3598 | PrintCompilation || PrintInlining || PrintDependencies || PrintNativeNMethods || |
| 3599 | PrintDebugInfo || PrintRelocations || PrintNMethods || PrintExceptionHandlers || |
| 3600 | PrintAssembly || TraceDeoptimization || TraceDependencies || |
| 3601 | (VerifyDependencies && FLAG_IS_CMDLINE(VerifyDependencies)(JVMFlag::is_cmdline(Flag_VerifyDependencies_enum)))) { |
| 3602 | return true; |
| 3603 | } |
| 3604 | |
| 3605 | #ifdef COMPILER11 |
| 3606 | if (PrintC1Statistics) { |
| 3607 | return true; |
| 3608 | } |
| 3609 | #endif // COMPILER1 |
| 3610 | |
| 3611 | #ifdef COMPILER21 |
| 3612 | if (PrintOptoAssembly || PrintOptoStatistics) { |
| 3613 | return true; |
| 3614 | } |
| 3615 | #endif // COMPILER2 |
| 3616 | |
| 3617 | return false; |
| 3618 | } |
| 3619 | |
| 3620 | #endif // PRODUCT |
| 3621 | |
| 3622 | bool Arguments::args_contains_vm_options_file_arg(const JavaVMInitArgs* args) { |
| 3623 | for (int index = 0; index < args->nOptions; index++) { |
| 3624 | const JavaVMOption* option = args->options + index; |
| 3625 | const char* tail; |
| 3626 | if (match_option(option, "-XX:VMOptionsFile=", &tail)) { |
| 3627 | return true; |
| 3628 | } |
| 3629 | } |
| 3630 | return false; |
| 3631 | } |
| 3632 | |
| 3633 | jint Arguments::insert_vm_options_file(const JavaVMInitArgs* args, |
| 3634 | const char* vm_options_file, |
| 3635 | const int vm_options_file_pos, |
| 3636 | ScopedVMInitArgs* vm_options_file_args, |
| 3637 | ScopedVMInitArgs* args_out) { |
| 3638 | jint code = parse_vm_options_file(vm_options_file, vm_options_file_args); |
| 3639 | if (code != JNI_OK0) { |
| 3640 | return code; |
| 3641 | } |
| 3642 | |
| 3643 | if (vm_options_file_args->get()->nOptions < 1) { |
| 3644 | return JNI_OK0; |
| 3645 | } |
| 3646 | |
| 3647 | if (args_contains_vm_options_file_arg(vm_options_file_args->get())) { |
| 3648 | jio_fprintf(defaultStream::error_stream(), |
| 3649 | "A VM options file may not refer to a VM options file. " |
| 3650 | "Specification of '-XX:VMOptionsFile=<file-name>' in the " |
| 3651 | "options file '%s' in options container '%s' is an error.\n", |
| 3652 | vm_options_file_args->vm_options_file_arg(), |
| 3653 | vm_options_file_args->container_name()); |
| 3654 | return JNI_EINVAL(-6); |
| 3655 | } |
| 3656 | |
| 3657 | return args_out->insert(args, vm_options_file_args->get(), |
| 3658 | vm_options_file_pos); |
| 3659 | } |
| 3660 | |
| 3661 | // Expand -XX:VMOptionsFile found in args_in as needed. |
| 3662 | // mod_args and args_out parameters may return values as needed. |
| 3663 | jint Arguments::expand_vm_options_as_needed(const JavaVMInitArgs* args_in, |
| 3664 | ScopedVMInitArgs* mod_args, |
| 3665 | JavaVMInitArgs** args_out) { |
| 3666 | jint code = match_special_option_and_act(args_in, mod_args); |
| 3667 | if (code != JNI_OK0) { |
| 3668 | return code; |
| 3669 | } |
| 3670 | |
| 3671 | if (mod_args->is_set()) { |
| 3672 | // args_in contains -XX:VMOptionsFile and mod_args contains the |
| 3673 | // original options from args_in along with the options expanded |
| 3674 | // from the VMOptionsFile. Return a short-hand to the caller. |
| 3675 | *args_out = mod_args->get(); |
| 3676 | } else { |
| 3677 | *args_out = (JavaVMInitArgs *)args_in; // no changes so use args_in |
| 3678 | } |
| 3679 | return JNI_OK0; |
| 3680 | } |
| 3681 | |
| 3682 | jint Arguments::match_special_option_and_act(const JavaVMInitArgs* args, |
| 3683 | ScopedVMInitArgs* args_out) { |
| 3684 | // Remaining part of option string |
| 3685 | const char* tail; |
| 3686 | ScopedVMInitArgs vm_options_file_args(args_out->container_name()); |
| 3687 | |
| 3688 | for (int index = 0; index < args->nOptions; index++) { |
| 3689 | const JavaVMOption* option = args->options + index; |
| 3690 | if (match_option(option, "-XX:Flags=", &tail)) { |
| 3691 | Arguments::set_jvm_flags_file(tail); |
| 3692 | continue; |
| 3693 | } |
| 3694 | if (match_option(option, "-XX:VMOptionsFile=", &tail)) { |
| 3695 | if (vm_options_file_args.found_vm_options_file_arg()) { |
| 3696 | jio_fprintf(defaultStream::error_stream(), |
| 3697 | "The option '%s' is already specified in the options " |
| 3698 | "container '%s' so the specification of '%s' in the " |
| 3699 | "same options container is an error.\n", |
| 3700 | vm_options_file_args.vm_options_file_arg(), |
| 3701 | vm_options_file_args.container_name(), |
| 3702 | option->optionString); |
| 3703 | return JNI_EINVAL(-6); |
| 3704 | } |
| 3705 | vm_options_file_args.set_vm_options_file_arg(option->optionString); |
| 3706 | // If there's a VMOptionsFile, parse that |
| 3707 | jint code = insert_vm_options_file(args, tail, index, |
| 3708 | &vm_options_file_args, args_out); |
| 3709 | if (code != JNI_OK0) { |
| 3710 | return code; |
| 3711 | } |
| 3712 | args_out->set_vm_options_file_arg(vm_options_file_args.vm_options_file_arg()); |
| 3713 | if (args_out->is_set()) { |
| 3714 | // The VMOptions file inserted some options so switch 'args' |
| 3715 | // to the new set of options, and continue processing which |
| 3716 | // preserves "last option wins" semantics. |
| 3717 | args = args_out->get(); |
| 3718 | // The first option from the VMOptionsFile replaces the |
| 3719 | // current option. So we back track to process the |
| 3720 | // replacement option. |
| 3721 | index--; |
| 3722 | } |
| 3723 | continue; |
| 3724 | } |
| 3725 | if (match_option(option, "-XX:+PrintVMOptions")) { |
| 3726 | PrintVMOptions = true; |
| 3727 | continue; |
| 3728 | } |
| 3729 | if (match_option(option, "-XX:-PrintVMOptions")) { |
| 3730 | PrintVMOptions = false; |
| 3731 | continue; |
| 3732 | } |
| 3733 | if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions")) { |
| 3734 | IgnoreUnrecognizedVMOptions = true; |
| 3735 | continue; |
| 3736 | } |
| 3737 | if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions")) { |
| 3738 | IgnoreUnrecognizedVMOptions = false; |
| 3739 | continue; |
| 3740 | } |
| 3741 | if (match_option(option, "-XX:+PrintFlagsInitial")) { |
| 3742 | JVMFlag::printFlags(tty, false); |
| 3743 | vm_exit(0); |
| 3744 | } |
| 3745 | |
| 3746 | #ifndef PRODUCT |
| 3747 | if (match_option(option, "-XX:+PrintFlagsWithComments")) { |
| 3748 | JVMFlag::printFlags(tty, true); |
| 3749 | vm_exit(0); |
| 3750 | } |
| 3751 | #endif |
| 3752 | } |
| 3753 | return JNI_OK0; |
| 3754 | } |
| 3755 | |
| 3756 | static void print_options(const JavaVMInitArgs *args) { |
| 3757 | const char* tail; |
| 3758 | for (int index = 0; index < args->nOptions; index++) { |
| 3759 | const JavaVMOption *option = args->options + index; |
| 3760 | if (match_option(option, "-XX:", &tail)) { |
| 3761 | logOption(tail); |
| 3762 | } |
| 3763 | } |
| 3764 | } |
| 3765 | |
| 3766 | bool Arguments::handle_deprecated_print_gc_flags() { |
| 3767 | if (PrintGC) { |
| 3768 | log_warning(gc)(!(LogImpl<(LogTag::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Warning))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Warning>("-XX:+PrintGC is deprecated. Will use -Xlog:gc instead."); |
| 3769 | } |
| 3770 | if (PrintGCDetails) { |
| 3771 | log_warning(gc)(!(LogImpl<(LogTag::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Warning))) ? (void)0 : LogImpl<(LogTag ::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG)>::write<LogLevel ::Warning>("-XX:+PrintGCDetails is deprecated. Will use -Xlog:gc* instead."); |
| 3772 | } |
| 3773 | |
| 3774 | if (_legacyGCLogging.lastFlag == 2) { |
| 3775 | // -Xloggc was used to specify a filename |
| 3776 | const char* gc_conf = PrintGCDetails ? "gc*" : "gc"; |
| 3777 | |
| 3778 | LogTarget(Error, logging)LogTargetImpl<LogLevel::Error, (LogTag::_logging), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG), (LogTag::__NO_TAG)> target; |
| 3779 | LogStream errstream(target); |
| 3780 | return LogConfiguration::parse_log_arguments(_legacyGCLogging.file, gc_conf, NULL__null, NULL__null, &errstream); |
| 3781 | } else if (PrintGC || PrintGCDetails || (_legacyGCLogging.lastFlag == 1)) { |
| 3782 | LogConfiguration::configure_stdout(LogLevel::Info, !PrintGCDetails, LOG_TAGS(gc)(LogTag::_gc), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 3783 | } |
| 3784 | return true; |
| 3785 | } |
| 3786 | |
| 3787 | static void apply_debugger_ergo() { |
| 3788 | if (ReplayCompiles) { |
| 3789 | FLAG_SET_ERGO_IF_DEFAULT(UseDebuggerErgo, true)do { if ((JVMFlag::is_default(Flag_UseDebuggerErgo_enum))) { ( Flag_UseDebuggerErgo_set((true), JVMFlagOrigin::ERGONOMIC)); } } while (0); |
| 3790 | } |
| 3791 | |
| 3792 | if (UseDebuggerErgo) { |
| 3793 | // Turn on sub-flags |
| 3794 | FLAG_SET_ERGO_IF_DEFAULT(UseDebuggerErgo1, true)do { if ((JVMFlag::is_default(Flag_UseDebuggerErgo1_enum))) { (Flag_UseDebuggerErgo1_set((true), JVMFlagOrigin::ERGONOMIC) ); } } while (0); |
| 3795 | FLAG_SET_ERGO_IF_DEFAULT(UseDebuggerErgo2, true)do { if ((JVMFlag::is_default(Flag_UseDebuggerErgo2_enum))) { (Flag_UseDebuggerErgo2_set((true), JVMFlagOrigin::ERGONOMIC) ); } } while (0); |
| 3796 | } |
| 3797 | |
| 3798 | if (UseDebuggerErgo2) { |
| 3799 | // Debugging with limited number of CPUs |
| 3800 | FLAG_SET_ERGO_IF_DEFAULT(UseNUMA, false)do { if ((JVMFlag::is_default(Flag_UseNUMA_enum))) { (Flag_UseNUMA_set ((false), JVMFlagOrigin::ERGONOMIC)); } } while (0); |
| 3801 | FLAG_SET_ERGO_IF_DEFAULT(ConcGCThreads, 1)do { if ((JVMFlag::is_default(Flag_ConcGCThreads_enum))) { (Flag_ConcGCThreads_set ((1), JVMFlagOrigin::ERGONOMIC)); } } while (0); |
| 3802 | FLAG_SET_ERGO_IF_DEFAULT(ParallelGCThreads, 1)do { if ((JVMFlag::is_default(Flag_ParallelGCThreads_enum))) { (Flag_ParallelGCThreads_set((1), JVMFlagOrigin::ERGONOMIC)); } } while (0); |
| 3803 | FLAG_SET_ERGO_IF_DEFAULT(CICompilerCount, 2)do { if ((JVMFlag::is_default(Flag_CICompilerCount_enum))) { ( Flag_CICompilerCount_set((2), JVMFlagOrigin::ERGONOMIC)); } } while (0); |
| 3804 | } |
| 3805 | } |
| 3806 | |
| 3807 | // Parse entry point called from JNI_CreateJavaVM |
| 3808 | |
| 3809 | jint Arguments::parse(const JavaVMInitArgs* initial_cmd_args) { |
| 3810 | assert(verify_special_jvm_flags(false), "deprecated and obsolete flag table inconsistent")do { if (!(verify_special_jvm_flags(false))) { (*g_assert_poison ) = 'X';; report_vm_error("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 3810, "assert(" "verify_special_jvm_flags(false)" ") failed" , "deprecated and obsolete flag table inconsistent"); ::breakpoint (); } } while (0); |
| 3811 | JVMFlag::check_all_flag_declarations(); |
| 3812 | |
| 3813 | // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. |
| 3814 | const char* hotspotrc = ".hotspotrc"; |
| 3815 | bool settings_file_specified = false; |
| 3816 | bool needs_hotspotrc_warning = false; |
| 3817 | ScopedVMInitArgs initial_vm_options_args(""); |
| 3818 | ScopedVMInitArgs initial_java_tool_options_args("env_var='JAVA_TOOL_OPTIONS'"); |
| 3819 | ScopedVMInitArgs initial_java_options_args("env_var='_JAVA_OPTIONS'"); |
| 3820 | |
| 3821 | // Pointers to current working set of containers |
| 3822 | JavaVMInitArgs* cur_cmd_args; |
| 3823 | JavaVMInitArgs* cur_vm_options_args; |
| 3824 | JavaVMInitArgs* cur_java_options_args; |
| 3825 | JavaVMInitArgs* cur_java_tool_options_args; |
| 3826 | |
| 3827 | // Containers for modified/expanded options |
| 3828 | ScopedVMInitArgs mod_cmd_args("cmd_line_args"); |
| 3829 | ScopedVMInitArgs mod_vm_options_args("vm_options_args"); |
| 3830 | ScopedVMInitArgs mod_java_tool_options_args("env_var='JAVA_TOOL_OPTIONS'"); |
| 3831 | ScopedVMInitArgs mod_java_options_args("env_var='_JAVA_OPTIONS'"); |
| 3832 | |
| 3833 | |
| 3834 | jint code = |
| 3835 | parse_java_tool_options_environment_variable(&initial_java_tool_options_args); |
| 3836 | if (code != JNI_OK0) { |
| 3837 | return code; |
| 3838 | } |
| 3839 | |
| 3840 | code = parse_java_options_environment_variable(&initial_java_options_args); |
| 3841 | if (code != JNI_OK0) { |
| 3842 | return code; |
| 3843 | } |
| 3844 | |
| 3845 | // Parse the options in the /java.base/jdk/internal/vm/options resource, if present |
| 3846 | char *vmoptions = ClassLoader::lookup_vm_options(); |
| 3847 | if (vmoptions != NULL__null) { |
| 3848 | code = parse_options_buffer("vm options resource", vmoptions, strlen(vmoptions), &initial_vm_options_args); |
| 3849 | FREE_C_HEAP_ARRAY(char, vmoptions)FreeHeap((char*)(vmoptions)); |
| 3850 | if (code != JNI_OK0) { |
| 3851 | return code; |
| 3852 | } |
| 3853 | } |
| 3854 | |
| 3855 | code = expand_vm_options_as_needed(initial_java_tool_options_args.get(), |
| 3856 | &mod_java_tool_options_args, |
| 3857 | &cur_java_tool_options_args); |
| 3858 | if (code != JNI_OK0) { |
| 3859 | return code; |
| 3860 | } |
| 3861 | |
| 3862 | code = expand_vm_options_as_needed(initial_cmd_args, |
| 3863 | &mod_cmd_args, |
| 3864 | &cur_cmd_args); |
| 3865 | if (code != JNI_OK0) { |
| 3866 | return code; |
| 3867 | } |
| 3868 | |
| 3869 | code = expand_vm_options_as_needed(initial_java_options_args.get(), |
| 3870 | &mod_java_options_args, |
| 3871 | &cur_java_options_args); |
| 3872 | if (code != JNI_OK0) { |
| 3873 | return code; |
| 3874 | } |
| 3875 | |
| 3876 | code = expand_vm_options_as_needed(initial_vm_options_args.get(), |
| 3877 | &mod_vm_options_args, |
| 3878 | &cur_vm_options_args); |
| 3879 | if (code != JNI_OK0) { |
| 3880 | return code; |
| 3881 | } |
| 3882 | |
| 3883 | const char* flags_file = Arguments::get_jvm_flags_file(); |
| 3884 | settings_file_specified = (flags_file != NULL__null); |
| 3885 | |
| 3886 | if (IgnoreUnrecognizedVMOptions) { |
| 3887 | cur_cmd_args->ignoreUnrecognized = true; |
| 3888 | cur_java_tool_options_args->ignoreUnrecognized = true; |
| 3889 | cur_java_options_args->ignoreUnrecognized = true; |
| 3890 | } |
| 3891 | |
| 3892 | // Parse specified settings file |
| 3893 | if (settings_file_specified) { |
| 3894 | if (!process_settings_file(flags_file, true, |
| 3895 | cur_cmd_args->ignoreUnrecognized)) { |
| 3896 | return JNI_EINVAL(-6); |
| 3897 | } |
| 3898 | } else { |
| 3899 | #ifdef ASSERT1 |
| 3900 | // Parse default .hotspotrc settings file |
| 3901 | if (!process_settings_file(".hotspotrc", false, |
| 3902 | cur_cmd_args->ignoreUnrecognized)) { |
| 3903 | return JNI_EINVAL(-6); |
| 3904 | } |
| 3905 | #else |
| 3906 | struct stat buf; |
| 3907 | if (os::stat(hotspotrc, &buf) == 0) { |
| 3908 | needs_hotspotrc_warning = true; |
| 3909 | } |
| 3910 | #endif |
| 3911 | } |
| 3912 | |
| 3913 | if (PrintVMOptions) { |
| 3914 | print_options(cur_java_tool_options_args); |
| 3915 | print_options(cur_cmd_args); |
| 3916 | print_options(cur_java_options_args); |
| 3917 | } |
| 3918 | |
| 3919 | // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS |
| 3920 | jint result = parse_vm_init_args(cur_vm_options_args, |
| 3921 | cur_java_tool_options_args, |
| 3922 | cur_java_options_args, |
| 3923 | cur_cmd_args); |
| 3924 | |
| 3925 | if (result != JNI_OK0) { |
| 3926 | return result; |
| 3927 | } |
| 3928 | |
| 3929 | // Delay warning until here so that we've had a chance to process |
| 3930 | // the -XX:-PrintWarnings flag |
| 3931 | if (needs_hotspotrc_warning) { |
| 3932 | warning("%s file is present but has been ignored. " |
| 3933 | "Run with -XX:Flags=%s to load the file.", |
| 3934 | hotspotrc, hotspotrc); |
| 3935 | } |
| 3936 | |
| 3937 | if (needs_module_property_warning) { |
| 3938 | warning("Ignoring system property options whose names match the '-Djdk.module.*'." |
| 3939 | " names that are reserved for internal use."); |
| 3940 | } |
| 3941 | |
| 3942 | #if defined(_ALLBSD_SOURCE) || defined(AIX) // UseLargePages is not yet supported on BSD and AIX. |
| 3943 | UNSUPPORTED_OPTION(UseLargePages)do { if (UseLargePages) { if ((JVMFlag::is_cmdline(Flag_UseLargePages_enum ))) { warning("-XX:+" "UseLargePages" " not supported in this VM" ); } ((UseLargePages) = (false)); } } while(0); |
| 3944 | #endif |
| 3945 | |
| 3946 | #if defined(AIX) |
| 3947 | UNSUPPORTED_OPTION_NULL(AllocateHeapAt)do { if (AllocateHeapAt) { if ((JVMFlag::is_cmdline(Flag_AllocateHeapAt_enum ))) { warning("-XX flag " "AllocateHeapAt" " not supported in this VM" ); } ((AllocateHeapAt) = (__null)); } } while(0); |
| 3948 | #endif |
| 3949 | |
| 3950 | #ifndef PRODUCT |
| 3951 | if (TraceBytecodesAt != 0) { |
| 3952 | TraceBytecodes = true; |
| 3953 | } |
| 3954 | if (CountCompiledCalls) { |
| 3955 | if (UseCounterDecay) { |
| 3956 | warning("UseCounterDecay disabled because CountCalls is set"); |
| 3957 | UseCounterDecay = false; |
| 3958 | } |
| 3959 | } |
| 3960 | #endif // PRODUCT |
| 3961 | |
| 3962 | if (ScavengeRootsInCode == 0) { |
| 3963 | if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)(JVMFlag::is_default(Flag_ScavengeRootsInCode_enum))) { |
| 3964 | warning("Forcing ScavengeRootsInCode non-zero"); |
| 3965 | } |
| 3966 | ScavengeRootsInCode = 1; |
| 3967 | } |
| 3968 | |
| 3969 | if (!handle_deprecated_print_gc_flags()) { |
| 3970 | return JNI_EINVAL(-6); |
| 3971 | } |
| 3972 | |
| 3973 | // Set object alignment values. |
| 3974 | set_object_alignment(); |
| 3975 | |
| 3976 | #if !INCLUDE_CDS1 |
| 3977 | if (DumpSharedSpaces || RequireSharedSpaces) { |
| 3978 | jio_fprintf(defaultStream::error_stream(), |
| 3979 | "Shared spaces are not supported in this VM\n"); |
| 3980 | return JNI_ERR(-1); |
| 3981 | } |
| 3982 | if (DumpLoadedClassList != NULL__null) { |
| 3983 | jio_fprintf(defaultStream::error_stream(), |
| 3984 | "DumpLoadedClassList is not supported in this VM\n"); |
| 3985 | return JNI_ERR(-1); |
| 3986 | } |
| 3987 | if ((UseSharedSpaces && xshare_auto_cmd_line) || |
| 3988 | log_is_enabled(Info, cds)(LogImpl<(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::is_level(LogLevel::Info))) { |
| 3989 | warning("Shared spaces are not supported in this VM"); |
| 3990 | UseSharedSpaces = false; |
| 3991 | LogConfiguration::configure_stdout(LogLevel::Off, true, LOG_TAGS(cds)(LogTag::_cds), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 3992 | } |
| 3993 | no_shared_spaces("CDS Disabled"); |
| 3994 | #endif // INCLUDE_CDS |
| 3995 | |
| 3996 | #if INCLUDE_NMT1 |
| 3997 | // Verify NMT arguments |
| 3998 | const NMT_TrackingLevel lvl = NMTUtil::parse_tracking_level(NativeMemoryTracking); |
| 3999 | if (lvl == NMT_unknown) { |
| 4000 | jio_fprintf(defaultStream::error_stream(), |
| 4001 | "Syntax error, expecting -XX:NativeMemoryTracking=[off|summary|detail]", NULL__null); |
| 4002 | return JNI_ERR(-1); |
| 4003 | } |
| 4004 | if (PrintNMTStatistics && lvl == NMT_off) { |
| 4005 | warning("PrintNMTStatistics is disabled, because native memory tracking is not enabled"); |
| 4006 | FLAG_SET_DEFAULT(PrintNMTStatistics, false)((PrintNMTStatistics) = (false)); |
| 4007 | } |
| 4008 | #else |
| 4009 | if (!FLAG_IS_DEFAULT(NativeMemoryTracking)(JVMFlag::is_default(Flag_NativeMemoryTracking_enum)) || PrintNMTStatistics) { |
| 4010 | warning("Native Memory Tracking is not supported in this VM"); |
| 4011 | FLAG_SET_DEFAULT(NativeMemoryTracking, "off")((NativeMemoryTracking) = ("off")); |
| 4012 | FLAG_SET_DEFAULT(PrintNMTStatistics, false)((PrintNMTStatistics) = (false)); |
| 4013 | } |
| 4014 | #endif // INCLUDE_NMT |
| 4015 | |
| 4016 | if (TraceDependencies && VerifyDependencies) { |
| 4017 | if (!FLAG_IS_DEFAULT(TraceDependencies)(JVMFlag::is_default(Flag_TraceDependencies_enum))) { |
| 4018 | warning("TraceDependencies results may be inflated by VerifyDependencies"); |
| 4019 | } |
| 4020 | } |
| 4021 | |
| 4022 | apply_debugger_ergo(); |
| 4023 | |
| 4024 | if (log_is_enabled(Info, arguments)(LogImpl<(LogTag::_arguments), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) { |
| 4025 | LogStream st(Log(arguments)LogImpl<(LogTag::_arguments), (LogTag::__NO_TAG), (LogTag:: __NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG )>::info()); |
| 4026 | Arguments::print_on(&st); |
| 4027 | } |
| 4028 | |
| 4029 | return JNI_OK0; |
| 4030 | } |
| 4031 | |
| 4032 | jint Arguments::apply_ergo() { |
| 4033 | // Set flags based on ergonomics. |
| 4034 | jint result = set_ergonomics_flags(); |
| 4035 | if (result != JNI_OK0) return result; |
| 4036 | |
| 4037 | // Set heap size based on available physical memory |
| 4038 | set_heap_size(); |
| 4039 | |
| 4040 | GCConfig::arguments()->initialize(); |
| 4041 | |
| 4042 | set_shared_spaces_flags_and_archive_paths(); |
| 4043 | |
| 4044 | // Initialize Metaspace flags and alignments |
| 4045 | Metaspace::ergo_initialize(); |
| 4046 | |
| 4047 | if (!StringDedup::ergo_initialize()) { |
| 4048 | return JNI_EINVAL(-6); |
| 4049 | } |
| 4050 | |
| 4051 | // Set compiler flags after GC is selected and GC specific |
| 4052 | // flags (LoopStripMiningIter) are set. |
| 4053 | CompilerConfig::ergo_initialize(); |
| 4054 | |
| 4055 | // Set bytecode rewriting flags |
| 4056 | set_bytecode_flags(); |
| 4057 | |
| 4058 | // Set flags if aggressive optimization flags are enabled |
| 4059 | jint code = set_aggressive_opts_flags(); |
| 4060 | if (code != JNI_OK0) { |
| 4061 | return code; |
| 4062 | } |
| 4063 | |
| 4064 | #ifdef ZERO |
| 4065 | // Clear flags not supported on zero. |
| 4066 | FLAG_SET_DEFAULT(ProfileInterpreter, false)((ProfileInterpreter) = (false)); |
| 4067 | |
| 4068 | if (LogTouchedMethods) { |
| 4069 | warning("LogTouchedMethods is not supported for Zero"); |
| 4070 | FLAG_SET_DEFAULT(LogTouchedMethods, false)((LogTouchedMethods) = (false)); |
| 4071 | } |
| 4072 | #endif // ZERO |
| 4073 | |
| 4074 | if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)(JVMFlag::is_default(Flag_DebugNonSafepoints_enum))) { |
| 4075 | warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
| 4076 | DebugNonSafepoints = true; |
| 4077 | } |
| 4078 | |
| 4079 | if (FLAG_IS_CMDLINE(CompressedClassSpaceSize)(JVMFlag::is_cmdline(Flag_CompressedClassSpaceSize_enum)) && !UseCompressedClassPointers) { |
| 4080 | warning("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used"); |
| 4081 | } |
| 4082 | |
| 4083 | // Treat the odd case where local verification is enabled but remote |
| 4084 | // verification is not as if both were enabled. |
| 4085 | if (BytecodeVerificationLocal && !BytecodeVerificationRemote) { |
| 4086 | log_info(verification)(!(LogImpl<(LogTag::_verification), (LogTag::__NO_TAG), (LogTag ::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag:: __NO_TAG)>::is_level(LogLevel::Info))) ? (void)0 : LogImpl <(LogTag::_verification), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG) >::write<LogLevel::Info>("Turning on remote verification because local verification is on"); |
| 4087 | FLAG_SET_DEFAULT(BytecodeVerificationRemote, true)((BytecodeVerificationRemote) = (true)); |
| 4088 | } |
| 4089 | |
| 4090 | #ifndef PRODUCT |
| 4091 | if (!LogVMOutput && FLAG_IS_DEFAULT(LogVMOutput)(JVMFlag::is_default(Flag_LogVMOutput_enum))) { |
| 4092 | if (use_vm_log()) { |
| 4093 | LogVMOutput = true; |
| 4094 | } |
| 4095 | } |
| 4096 | #endif // PRODUCT |
| 4097 | |
| 4098 | if (PrintCommandLineFlags) { |
| 4099 | JVMFlag::printSetFlags(tty); |
| 4100 | } |
| 4101 | |
| 4102 | #ifdef COMPILER21 |
| 4103 | if (!FLAG_IS_DEFAULT(EnableVectorSupport)(JVMFlag::is_default(Flag_EnableVectorSupport_enum)) && !EnableVectorSupport) { |
| 4104 | if (!FLAG_IS_DEFAULT(EnableVectorReboxing)(JVMFlag::is_default(Flag_EnableVectorReboxing_enum)) && EnableVectorReboxing) { |
| 4105 | warning("Disabling EnableVectorReboxing since EnableVectorSupport is turned off."); |
| 4106 | } |
| 4107 | FLAG_SET_DEFAULT(EnableVectorReboxing, false)((EnableVectorReboxing) = (false)); |
| 4108 | |
| 4109 | if (!FLAG_IS_DEFAULT(EnableVectorAggressiveReboxing)(JVMFlag::is_default(Flag_EnableVectorAggressiveReboxing_enum )) && EnableVectorAggressiveReboxing) { |
| 4110 | if (!EnableVectorReboxing) { |
| 4111 | warning("Disabling EnableVectorAggressiveReboxing since EnableVectorReboxing is turned off."); |
| 4112 | } else { |
| 4113 | warning("Disabling EnableVectorAggressiveReboxing since EnableVectorSupport is turned off."); |
| 4114 | } |
| 4115 | } |
| 4116 | FLAG_SET_DEFAULT(EnableVectorAggressiveReboxing, false)((EnableVectorAggressiveReboxing) = (false)); |
| 4117 | |
| 4118 | if (!FLAG_IS_DEFAULT(UseVectorStubs)(JVMFlag::is_default(Flag_UseVectorStubs_enum)) && UseVectorStubs) { |
| 4119 | warning("Disabling UseVectorStubs since EnableVectorSupport is turned off."); |
| 4120 | } |
| 4121 | FLAG_SET_DEFAULT(UseVectorStubs, false)((UseVectorStubs) = (false)); |
| 4122 | } |
| 4123 | #endif // COMPILER2 |
| 4124 | |
| 4125 | if (FLAG_IS_CMDLINE(DiagnoseSyncOnValueBasedClasses)(JVMFlag::is_cmdline(Flag_DiagnoseSyncOnValueBasedClasses_enum ))) { |
| 4126 | if (DiagnoseSyncOnValueBasedClasses == ObjectSynchronizer::LOG_WARNING && !log_is_enabled(Info, valuebasedclasses)(LogImpl<(LogTag::_valuebasedclasses), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG), ( LogTag::__NO_TAG)>::is_level(LogLevel::Info))) { |
| 4127 | LogConfiguration::configure_stdout(LogLevel::Info, true, LOG_TAGS(valuebasedclasses)(LogTag::_valuebasedclasses), (LogTag::__NO_TAG), (LogTag::__NO_TAG ), (LogTag::__NO_TAG), (LogTag::__NO_TAG), (LogTag::__NO_TAG)); |
| 4128 | } |
| 4129 | } |
| 4130 | return JNI_OK0; |
| 4131 | } |
| 4132 | |
| 4133 | jint Arguments::adjust_after_os() { |
| 4134 | if (UseNUMA) { |
| 4135 | if (UseParallelGC) { |
| 4136 | if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)(JVMFlag::is_default(Flag_MinHeapDeltaBytes_enum))) { |
| 4137 | FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M)((MinHeapDeltaBytes) = (64*M)); |
| 4138 | } |
| 4139 | } |
| 4140 | } |
| 4141 | return JNI_OK0; |
| 4142 | } |
| 4143 | |
| 4144 | int Arguments::PropertyList_count(SystemProperty* pl) { |
| 4145 | int count = 0; |
| 4146 | while(pl != NULL__null) { |
| 4147 | count++; |
| 4148 | pl = pl->next(); |
| 4149 | } |
| 4150 | return count; |
| 4151 | } |
| 4152 | |
| 4153 | // Return the number of readable properties. |
| 4154 | int Arguments::PropertyList_readable_count(SystemProperty* pl) { |
| 4155 | int count = 0; |
| 4156 | while(pl != NULL__null) { |
| 4157 | if (pl->is_readable()) { |
| 4158 | count++; |
| 4159 | } |
| 4160 | pl = pl->next(); |
| 4161 | } |
| 4162 | return count; |
| 4163 | } |
| 4164 | |
| 4165 | const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { |
| 4166 | assert(key != NULL, "just checking")do { if (!(key != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 4166, "assert(" "key != __null" ") failed", "just checking" ); ::breakpoint(); } } while (0); |
| 4167 | SystemProperty* prop; |
| 4168 | for (prop = pl; prop != NULL__null; prop = prop->next()) { |
| 4169 | if (strcmp(key, prop->key()) == 0) return prop->value(); |
| 4170 | } |
| 4171 | return NULL__null; |
| 4172 | } |
| 4173 | |
| 4174 | // Return the value of the requested property provided that it is a readable property. |
| 4175 | const char* Arguments::PropertyList_get_readable_value(SystemProperty *pl, const char* key) { |
| 4176 | assert(key != NULL, "just checking")do { if (!(key != __null)) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 4176, "assert(" "key != __null" ") failed", "just checking" ); ::breakpoint(); } } while (0); |
| 4177 | SystemProperty* prop; |
| 4178 | // Return the property value if the keys match and the property is not internal or |
| 4179 | // it's the special internal property "jdk.boot.class.path.append". |
| 4180 | for (prop = pl; prop != NULL__null; prop = prop->next()) { |
| 4181 | if (strcmp(key, prop->key()) == 0) { |
| 4182 | if (!prop->internal()) { |
| 4183 | return prop->value(); |
| 4184 | } else if (strcmp(key, "jdk.boot.class.path.append") == 0) { |
| 4185 | return prop->value(); |
| 4186 | } else { |
| 4187 | // Property is internal and not jdk.boot.class.path.append so return NULL. |
| 4188 | return NULL__null; |
| 4189 | } |
| 4190 | } |
| 4191 | } |
| 4192 | return NULL__null; |
| 4193 | } |
| 4194 | |
| 4195 | const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { |
| 4196 | int count = 0; |
| 4197 | const char* ret_val = NULL__null; |
| 4198 | |
| 4199 | while(pl != NULL__null) { |
| 4200 | if(count >= index) { |
| 4201 | ret_val = pl->key(); |
| 4202 | break; |
| 4203 | } |
| 4204 | count++; |
| 4205 | pl = pl->next(); |
| 4206 | } |
| 4207 | |
| 4208 | return ret_val; |
| 4209 | } |
| 4210 | |
| 4211 | char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { |
| 4212 | int count = 0; |
| 4213 | char* ret_val = NULL__null; |
| 4214 | |
| 4215 | while(pl != NULL__null) { |
| 4216 | if(count >= index) { |
| 4217 | ret_val = pl->value(); |
| 4218 | break; |
| 4219 | } |
| 4220 | count++; |
| 4221 | pl = pl->next(); |
| 4222 | } |
| 4223 | |
| 4224 | return ret_val; |
| 4225 | } |
| 4226 | |
| 4227 | void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { |
| 4228 | SystemProperty* p = *plist; |
| 4229 | if (p == NULL__null) { |
| 4230 | *plist = new_p; |
| 4231 | } else { |
| 4232 | while (p->next() != NULL__null) { |
| 4233 | p = p->next(); |
| 4234 | } |
| 4235 | p->set_next(new_p); |
| 4236 | } |
| 4237 | } |
| 4238 | |
| 4239 | void Arguments::PropertyList_add(SystemProperty** plist, const char* k, const char* v, |
| 4240 | bool writeable, bool internal) { |
| 4241 | if (plist == NULL__null) |
| 4242 | return; |
| 4243 | |
| 4244 | SystemProperty* new_p = new SystemProperty(k, v, writeable, internal); |
| 4245 | PropertyList_add(plist, new_p); |
| 4246 | } |
| 4247 | |
| 4248 | void Arguments::PropertyList_add(SystemProperty *element) { |
| 4249 | PropertyList_add(&_system_properties, element); |
| 4250 | } |
| 4251 | |
| 4252 | // This add maintains unique property key in the list. |
| 4253 | void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, const char* v, |
| 4254 | PropertyAppendable append, PropertyWriteable writeable, |
| 4255 | PropertyInternal internal) { |
| 4256 | if (plist == NULL__null) |
| 4257 | return; |
| 4258 | |
| 4259 | // If property key exists and is writeable, then update with new value. |
| 4260 | // Trying to update a non-writeable property is silently ignored. |
| 4261 | SystemProperty* prop; |
| 4262 | for (prop = *plist; prop != NULL__null; prop = prop->next()) { |
| 4263 | if (strcmp(k, prop->key()) == 0) { |
| 4264 | if (append == AppendProperty) { |
| 4265 | prop->append_writeable_value(v); |
| 4266 | } else { |
| 4267 | prop->set_writeable_value(v); |
| 4268 | } |
| 4269 | return; |
| 4270 | } |
| 4271 | } |
| 4272 | |
| 4273 | PropertyList_add(plist, k, v, writeable == WriteableProperty, internal == InternalProperty); |
| 4274 | } |
| 4275 | |
| 4276 | // Copies src into buf, replacing "%%" with "%" and "%p" with pid |
| 4277 | // Returns true if all of the source pointed by src has been copied over to |
| 4278 | // the destination buffer pointed by buf. Otherwise, returns false. |
| 4279 | // Notes: |
| 4280 | // 1. If the length (buflen) of the destination buffer excluding the |
| 4281 | // NULL terminator character is not long enough for holding the expanded |
| 4282 | // pid characters, it also returns false instead of returning the partially |
| 4283 | // expanded one. |
| 4284 | // 2. The passed in "buflen" should be large enough to hold the null terminator. |
| 4285 | bool Arguments::copy_expand_pid(const char* src, size_t srclen, |
| 4286 | char* buf, size_t buflen) { |
| 4287 | const char* p = src; |
| 4288 | char* b = buf; |
| 4289 | const char* src_end = &src[srclen]; |
| 4290 | char* buf_end = &buf[buflen - 1]; |
| 4291 | |
| 4292 | while (p < src_end && b < buf_end) { |
| 4293 | if (*p == '%') { |
| 4294 | switch (*(++p)) { |
| 4295 | case '%': // "%%" ==> "%" |
| 4296 | *b++ = *p++; |
| 4297 | break; |
| 4298 | case 'p': { // "%p" ==> current process id |
| 4299 | // buf_end points to the character before the last character so |
| 4300 | // that we could write '\0' to the end of the buffer. |
| 4301 | size_t buf_sz = buf_end - b + 1; |
| 4302 | int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); |
| 4303 | |
| 4304 | // if jio_snprintf fails or the buffer is not long enough to hold |
| 4305 | // the expanded pid, returns false. |
| 4306 | if (ret < 0 || ret >= (int)buf_sz) { |
| 4307 | return false; |
| 4308 | } else { |
| 4309 | b += ret; |
| 4310 | assert(*b == '\0', "fail in copy_expand_pid")do { if (!(*b == '\0')) { (*g_assert_poison) = 'X';; report_vm_error ("/home/daniel/Projects/java/jdk/src/hotspot/share/runtime/arguments.cpp" , 4310, "assert(" "*b == '\\0'" ") failed", "fail in copy_expand_pid" ); ::breakpoint(); } } while (0); |
| 4311 | if (p == src_end && b == buf_end + 1) { |
| 4312 | // reach the end of the buffer. |
| 4313 | return true; |
| 4314 | } |
| 4315 | } |
| 4316 | p++; |
| 4317 | break; |
| 4318 | } |
| 4319 | default : |
| 4320 | *b++ = '%'; |
| 4321 | } |
| 4322 | } else { |
| 4323 | *b++ = *p++; |
| 4324 | } |
| 4325 | } |
| 4326 | *b = '\0'; |
| 4327 | return (p == src_end); // return false if not all of the source was copied |
| 4328 | } |