Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 8734:209f8ba5020b
8008368: Deprecate MaxGCMinorPauseMillis
Summary: Deprecate MaxGCMinorPauseMillis and emit a warning if set by users
Reviewed-by: brutisso, johnc
Contributed-by: tamao <tao.mao@oracle.com>
| author | tamao |
|---|---|
| date | Thu, 07 Mar 2013 10:44:04 -0800 |
| parents | 94478a033036 |
| children | eac371996b44 |
| rev | line source |
|---|---|
| 0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
| 0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
| 4 * | |
| 5 * This code is free software; you can redistribute it and/or modify it | |
| 6 * under the terms of the GNU General Public License version 2 only, as | |
| 7 * published by the Free Software Foundation. | |
| 8 * | |
| 9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
| 10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
| 11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
| 12 * version 2 for more details (a copy is included in the LICENSE file that | |
| 13 * accompanied this code). | |
| 14 * | |
| 15 * You should have received a copy of the GNU General Public License version | |
| 16 * 2 along with this work; if not, write to the Free Software Foundation, | |
| 17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
| 18 * | |
|
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 1972 | 25 #include "precompiled.hpp" |
| 26 #include "classfile/javaAssertions.hpp" | |
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27 #include "classfile/symbolTable.hpp" |
| 1972 | 28 #include "compiler/compilerOracle.hpp" |
| 29 #include "memory/allocation.inline.hpp" | |
| 30 #include "memory/cardTableRS.hpp" | |
| 31 #include "memory/referenceProcessor.hpp" | |
| 32 #include "memory/universe.inline.hpp" | |
| 33 #include "oops/oop.inline.hpp" | |
| 34 #include "prims/jvmtiExport.hpp" | |
| 35 #include "runtime/arguments.hpp" | |
| 36 #include "runtime/globals_extension.hpp" | |
| 37 #include "runtime/java.hpp" | |
| 38 #include "services/management.hpp" | |
| 6197 | 39 #include "services/memTracker.hpp" |
| 1972 | 40 #include "utilities/defaultStream.hpp" |
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41 #include "utilities/macros.hpp" |
| 1972 | 42 #include "utilities/taskqueue.hpp" |
| 43 #ifdef TARGET_OS_FAMILY_linux | |
| 44 # include "os_linux.inline.hpp" | |
| 45 #endif | |
| 46 #ifdef TARGET_OS_FAMILY_solaris | |
| 47 # include "os_solaris.inline.hpp" | |
| 48 #endif | |
| 49 #ifdef TARGET_OS_FAMILY_windows | |
| 50 # include "os_windows.inline.hpp" | |
| 51 #endif | |
| 3960 | 52 #ifdef TARGET_OS_FAMILY_bsd |
| 53 # include "os_bsd.inline.hpp" | |
| 54 #endif | |
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55 #if INCLUDE_ALL_GCS |
| 1972 | 56 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
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57 #endif // INCLUDE_ALL_GCS |
| 0 | 58 |
| 2474 | 59 // Note: This is a special bug reporting site for the JVM |
| 60 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
| 0 | 61 #define DEFAULT_JAVA_LAUNCHER "generic" |
| 62 | |
| 63 char** Arguments::_jvm_flags_array = NULL; | |
| 64 int Arguments::_num_jvm_flags = 0; | |
| 65 char** Arguments::_jvm_args_array = NULL; | |
| 66 int Arguments::_num_jvm_args = 0; | |
| 67 char* Arguments::_java_command = NULL; | |
| 68 SystemProperty* Arguments::_system_properties = NULL; | |
| 69 const char* Arguments::_gc_log_filename = NULL; | |
| 70 bool Arguments::_has_profile = false; | |
| 71 bool Arguments::_has_alloc_profile = false; | |
| 72 uintx Arguments::_min_heap_size = 0; | |
| 73 Arguments::Mode Arguments::_mode = _mixed; | |
| 74 bool Arguments::_java_compiler = false; | |
| 75 bool Arguments::_xdebug_mode = false; | |
| 76 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
| 77 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
| 78 int Arguments::_sun_java_launcher_pid = -1; | |
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79 bool Arguments::_created_by_gamma_launcher = false; |
| 0 | 80 |
| 81 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
| 82 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 83 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 84 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 85 bool Arguments::_ClipInlining = ClipInlining; | |
| 86 | |
| 87 char* Arguments::SharedArchivePath = NULL; | |
| 88 | |
| 89 AgentLibraryList Arguments::_libraryList; | |
| 90 AgentLibraryList Arguments::_agentList; | |
| 91 | |
| 92 abort_hook_t Arguments::_abort_hook = NULL; | |
| 93 exit_hook_t Arguments::_exit_hook = NULL; | |
| 94 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
| 95 | |
| 96 | |
| 97 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
| 98 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
| 99 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
| 100 SystemProperty *Arguments::_java_library_path = NULL; | |
| 101 SystemProperty *Arguments::_java_home = NULL; | |
| 102 SystemProperty *Arguments::_java_class_path = NULL; | |
| 103 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
| 104 | |
| 105 char* Arguments::_meta_index_path = NULL; | |
| 106 char* Arguments::_meta_index_dir = NULL; | |
| 107 | |
| 108 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
| 109 | |
| 110 static bool match_option(const JavaVMOption *option, const char* name, | |
| 111 const char** tail) { | |
| 112 int len = (int)strlen(name); | |
| 113 if (strncmp(option->optionString, name, len) == 0) { | |
| 114 *tail = option->optionString + len; | |
| 115 return true; | |
| 116 } else { | |
| 117 return false; | |
| 118 } | |
| 119 } | |
| 120 | |
| 121 static void logOption(const char* opt) { | |
| 122 if (PrintVMOptions) { | |
| 123 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
| 124 } | |
| 125 } | |
| 126 | |
| 127 // Process java launcher properties. | |
| 128 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
| 129 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
| 130 // Must do this before setting up other system properties, | |
| 131 // as some of them may depend on launcher type. | |
| 132 for (int index = 0; index < args->nOptions; index++) { | |
| 133 const JavaVMOption* option = args->options + index; | |
| 134 const char* tail; | |
| 135 | |
| 136 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
| 137 process_java_launcher_argument(tail, option->extraInfo); | |
| 138 continue; | |
| 139 } | |
| 140 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
| 141 _sun_java_launcher_pid = atoi(tail); | |
| 142 continue; | |
| 143 } | |
| 144 } | |
| 145 } | |
| 146 | |
| 147 // Initialize system properties key and value. | |
| 148 void Arguments::init_system_properties() { | |
| 149 | |
| 150 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
| 151 "Java Virtual Machine Specification", false)); | |
| 152 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
| 153 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
| 154 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
| 155 | |
| 156 // following are JVMTI agent writeable properties. | |
| 157 // Properties values are set to NULL and they are | |
| 158 // os specific they are initialized in os::init_system_properties_values(). | |
| 159 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
| 160 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
| 161 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
| 162 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
| 163 _java_home = new SystemProperty("java.home", NULL, true); | |
| 164 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
| 165 | |
| 166 _java_class_path = new SystemProperty("java.class.path", "", true); | |
| 167 | |
| 168 // Add to System Property list. | |
| 169 PropertyList_add(&_system_properties, _java_ext_dirs); | |
| 170 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
| 171 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
| 172 PropertyList_add(&_system_properties, _java_library_path); | |
| 173 PropertyList_add(&_system_properties, _java_home); | |
| 174 PropertyList_add(&_system_properties, _java_class_path); | |
| 175 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
| 176 | |
| 177 // Set OS specific system properties values | |
| 178 os::init_system_properties_values(); | |
| 179 } | |
| 180 | |
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181 |
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182 // Update/Initialize System properties after JDK version number is known |
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183 void Arguments::init_version_specific_system_properties() { |
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184 enum { bufsz = 16 }; |
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185 char buffer[bufsz]; |
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186 const char* spec_vendor = "Sun Microsystems Inc."; |
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187 uint32_t spec_version = 0; |
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188 |
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189 if (JDK_Version::is_gte_jdk17x_version()) { |
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190 spec_vendor = "Oracle Corporation"; |
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191 spec_version = JDK_Version::current().major_version(); |
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192 } |
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193 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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194 |
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195 PropertyList_add(&_system_properties, |
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196 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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197 PropertyList_add(&_system_properties, |
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198 new SystemProperty("java.vm.specification.version", buffer, false)); |
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199 PropertyList_add(&_system_properties, |
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200 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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201 } |
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202 |
| 242 | 203 /** |
| 204 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
| 205 * When a flag is eliminated, it can be added to this list in order to | |
| 206 * continue accepting this flag on the command-line, while issuing a warning | |
| 207 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
| 208 * limit, we flatly refuse to admit the existence of the flag. This allows | |
| 209 * a flag to die correctly over JDK releases using HSX. | |
| 210 */ | |
| 211 typedef struct { | |
| 212 const char* name; | |
| 213 JDK_Version obsoleted_in; // when the flag went away | |
| 214 JDK_Version accept_until; // which version to start denying the existence | |
| 215 } ObsoleteFlag; | |
| 0 | 216 |
| 242 | 217 static ObsoleteFlag obsolete_jvm_flags[] = { |
| 218 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 219 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 220 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 221 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 222 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 223 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 224 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 225 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 226 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 227 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 228 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 229 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 230 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 231 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
| 1064 | 232 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
| 233 { "DefaultInitialRAMFraction", | |
| 234 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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235 { "UseDepthFirstScavengeOrder", |
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236 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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237 { "HandlePromotionFailure", |
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238 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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239 { "MaxLiveObjectEvacuationRatio", |
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240 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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241 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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242 { "UseParallelOldGCCompacting", |
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243 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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244 { "UseParallelDensePrefixUpdate", |
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245 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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246 { "UseParallelOldGCDensePrefix", |
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247 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
| 2460 | 248 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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249 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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250 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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251 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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252 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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253 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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254 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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255 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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256 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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257 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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258 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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259 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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260 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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261 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
| 6916 | 262 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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263 #ifdef PRODUCT |
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264 { "DesiredMethodLimit", |
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265 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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266 #endif // PRODUCT |
| 242 | 267 { NULL, JDK_Version(0), JDK_Version(0) } |
| 268 }; | |
| 269 | |
| 270 // Returns true if the flag is obsolete and fits into the range specified | |
| 271 // for being ignored. In the case that the flag is ignored, the 'version' | |
| 272 // value is filled in with the version number when the flag became | |
| 273 // obsolete so that that value can be displayed to the user. | |
| 274 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
| 0 | 275 int i = 0; |
| 242 | 276 assert(version != NULL, "Must provide a version buffer"); |
| 277 while (obsolete_jvm_flags[i].name != NULL) { | |
| 278 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
| 0 | 279 // <flag>=xxx form |
| 280 // [-|+]<flag> form | |
| 242 | 281 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
| 0 | 282 ((s[0] == '+' || s[0] == '-') && |
| 242 | 283 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
| 284 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
| 285 *version = flag_status.obsoleted_in; | |
| 286 return true; | |
| 287 } | |
| 0 | 288 } |
| 289 i++; | |
| 290 } | |
| 291 return false; | |
| 292 } | |
| 293 | |
| 294 // Constructs the system class path (aka boot class path) from the following | |
| 295 // components, in order: | |
| 296 // | |
| 297 // prefix // from -Xbootclasspath/p:... | |
| 298 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
| 299 // base // from os::get_system_properties() or -Xbootclasspath= | |
| 300 // suffix // from -Xbootclasspath/a:... | |
| 301 // | |
| 302 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
| 303 // directories are added to the sysclasspath just before the base. | |
| 304 // | |
| 305 // This could be AllStatic, but it isn't needed after argument processing is | |
| 306 // complete. | |
| 307 class SysClassPath: public StackObj { | |
| 308 public: | |
| 309 SysClassPath(const char* base); | |
| 310 ~SysClassPath(); | |
| 311 | |
| 312 inline void set_base(const char* base); | |
| 313 inline void add_prefix(const char* prefix); | |
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314 inline void add_suffix_to_prefix(const char* suffix); |
| 0 | 315 inline void add_suffix(const char* suffix); |
| 316 inline void reset_path(const char* base); | |
| 317 | |
| 318 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
| 319 // property. Must be called after all command-line arguments have been | |
| 320 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
| 321 // combined_path(). | |
| 322 void expand_endorsed(); | |
| 323 | |
| 324 inline const char* get_base() const { return _items[_scp_base]; } | |
| 325 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
| 326 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
| 327 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
| 328 | |
| 329 // Combine all the components into a single c-heap-allocated string; caller | |
| 330 // must free the string if/when no longer needed. | |
| 331 char* combined_path(); | |
| 332 | |
| 333 private: | |
| 334 // Utility routines. | |
| 335 static char* add_to_path(const char* path, const char* str, bool prepend); | |
| 336 static char* add_jars_to_path(char* path, const char* directory); | |
| 337 | |
| 338 inline void reset_item_at(int index); | |
| 339 | |
| 340 // Array indices for the items that make up the sysclasspath. All except the | |
| 341 // base are allocated in the C heap and freed by this class. | |
| 342 enum { | |
| 343 _scp_prefix, // from -Xbootclasspath/p:... | |
| 344 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
| 345 _scp_base, // the default sysclasspath | |
| 346 _scp_suffix, // from -Xbootclasspath/a:... | |
| 347 _scp_nitems // the number of items, must be last. | |
| 348 }; | |
| 349 | |
| 350 const char* _items[_scp_nitems]; | |
| 351 DEBUG_ONLY(bool _expansion_done;) | |
| 352 }; | |
| 353 | |
| 354 SysClassPath::SysClassPath(const char* base) { | |
| 355 memset(_items, 0, sizeof(_items)); | |
| 356 _items[_scp_base] = base; | |
| 357 DEBUG_ONLY(_expansion_done = false;) | |
| 358 } | |
| 359 | |
| 360 SysClassPath::~SysClassPath() { | |
| 361 // Free everything except the base. | |
| 362 for (int i = 0; i < _scp_nitems; ++i) { | |
| 363 if (i != _scp_base) reset_item_at(i); | |
| 364 } | |
| 365 DEBUG_ONLY(_expansion_done = false;) | |
| 366 } | |
| 367 | |
| 368 inline void SysClassPath::set_base(const char* base) { | |
| 369 _items[_scp_base] = base; | |
| 370 } | |
| 371 | |
| 372 inline void SysClassPath::add_prefix(const char* prefix) { | |
| 373 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
| 374 } | |
| 375 | |
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376 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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377 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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378 } |
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379 |
| 0 | 380 inline void SysClassPath::add_suffix(const char* suffix) { |
| 381 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
| 382 } | |
| 383 | |
| 384 inline void SysClassPath::reset_item_at(int index) { | |
| 385 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
| 386 if (_items[index] != NULL) { | |
| 6197 | 387 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
| 0 | 388 _items[index] = NULL; |
| 389 } | |
| 390 } | |
| 391 | |
| 392 inline void SysClassPath::reset_path(const char* base) { | |
| 393 // Clear the prefix and suffix. | |
| 394 reset_item_at(_scp_prefix); | |
| 395 reset_item_at(_scp_suffix); | |
| 396 set_base(base); | |
| 397 } | |
| 398 | |
| 399 //------------------------------------------------------------------------------ | |
| 400 | |
| 401 void SysClassPath::expand_endorsed() { | |
| 402 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
| 403 | |
| 404 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
| 405 if (path == NULL) { | |
| 406 path = Arguments::get_endorsed_dir(); | |
| 407 assert(path != NULL, "no default for java.endorsed.dirs"); | |
| 408 } | |
| 409 | |
| 410 char* expanded_path = NULL; | |
| 411 const char separator = *os::path_separator(); | |
| 412 const char* const end = path + strlen(path); | |
| 413 while (path < end) { | |
| 414 const char* tmp_end = strchr(path, separator); | |
| 415 if (tmp_end == NULL) { | |
| 416 expanded_path = add_jars_to_path(expanded_path, path); | |
| 417 path = end; | |
| 418 } else { | |
| 6197 | 419 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
| 0 | 420 memcpy(dirpath, path, tmp_end - path); |
| 421 dirpath[tmp_end - path] = '\0'; | |
| 422 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
| 6197 | 423 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
| 0 | 424 path = tmp_end + 1; |
| 425 } | |
| 426 } | |
| 427 _items[_scp_endorsed] = expanded_path; | |
| 428 DEBUG_ONLY(_expansion_done = true;) | |
| 429 } | |
| 430 | |
| 431 // Combine the bootclasspath elements, some of which may be null, into a single | |
| 432 // c-heap-allocated string. | |
| 433 char* SysClassPath::combined_path() { | |
| 434 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
| 435 assert(_expansion_done, "must call expand_endorsed() first."); | |
| 436 | |
| 437 size_t lengths[_scp_nitems]; | |
| 438 size_t total_len = 0; | |
| 439 | |
| 440 const char separator = *os::path_separator(); | |
| 441 | |
| 442 // Get the lengths. | |
| 443 int i; | |
| 444 for (i = 0; i < _scp_nitems; ++i) { | |
| 445 if (_items[i] != NULL) { | |
| 446 lengths[i] = strlen(_items[i]); | |
| 447 // Include space for the separator char (or a NULL for the last item). | |
| 448 total_len += lengths[i] + 1; | |
| 449 } | |
| 450 } | |
| 451 assert(total_len > 0, "empty sysclasspath not allowed"); | |
| 452 | |
| 453 // Copy the _items to a single string. | |
| 6197 | 454 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
| 0 | 455 char* cp_tmp = cp; |
| 456 for (i = 0; i < _scp_nitems; ++i) { | |
| 457 if (_items[i] != NULL) { | |
| 458 memcpy(cp_tmp, _items[i], lengths[i]); | |
| 459 cp_tmp += lengths[i]; | |
| 460 *cp_tmp++ = separator; | |
| 461 } | |
| 462 } | |
| 463 *--cp_tmp = '\0'; // Replace the extra separator. | |
| 464 return cp; | |
| 465 } | |
| 466 | |
| 467 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 468 char* | |
| 469 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
| 470 char *cp; | |
| 471 | |
| 472 assert(str != NULL, "just checking"); | |
| 473 if (path == NULL) { | |
| 474 size_t len = strlen(str) + 1; | |
| 6197 | 475 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 476 memcpy(cp, str, len); // copy the trailing null |
| 477 } else { | |
| 478 const char separator = *os::path_separator(); | |
| 479 size_t old_len = strlen(path); | |
| 480 size_t str_len = strlen(str); | |
| 481 size_t len = old_len + str_len + 2; | |
| 482 | |
| 483 if (prepend) { | |
| 6197 | 484 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 485 char* cp_tmp = cp; |
| 486 memcpy(cp_tmp, str, str_len); | |
| 487 cp_tmp += str_len; | |
| 488 *cp_tmp = separator; | |
| 489 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
| 6197 | 490 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
| 0 | 491 } else { |
| 6197 | 492 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
| 0 | 493 char* cp_tmp = cp + old_len; |
| 494 *cp_tmp = separator; | |
| 495 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
| 496 } | |
| 497 } | |
| 498 return cp; | |
| 499 } | |
| 500 | |
| 501 // Scan the directory and append any jar or zip files found to path. | |
| 502 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 503 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
| 504 DIR* dir = os::opendir(directory); | |
| 505 if (dir == NULL) return path; | |
| 506 | |
| 507 char dir_sep[2] = { '\0', '\0' }; | |
| 508 size_t directory_len = strlen(directory); | |
| 509 const char fileSep = *os::file_separator(); | |
| 510 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
| 511 | |
| 512 /* Scan the directory for jars/zips, appending them to path. */ | |
| 513 struct dirent *entry; | |
| 6197 | 514 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
| 0 | 515 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
| 516 const char* name = entry->d_name; | |
| 517 const char* ext = name + strlen(name) - 4; | |
| 518 bool isJarOrZip = ext > name && | |
| 519 (os::file_name_strcmp(ext, ".jar") == 0 || | |
| 520 os::file_name_strcmp(ext, ".zip") == 0); | |
| 521 if (isJarOrZip) { | |
| 6197 | 522 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
| 0 | 523 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
| 524 path = add_to_path(path, jarpath, false); | |
| 6197 | 525 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
| 0 | 526 } |
| 527 } | |
| 6197 | 528 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
| 0 | 529 os::closedir(dir); |
| 530 return path; | |
| 531 } | |
| 532 | |
| 533 // Parses a memory size specification string. | |
|
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534 static bool atomull(const char *s, julong* result) { |
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535 julong n = 0; |
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536 int args_read = sscanf(s, JULONG_FORMAT, &n); |
| 0 | 537 if (args_read != 1) { |
| 538 return false; | |
| 539 } | |
| 540 while (*s != '\0' && isdigit(*s)) { | |
| 541 s++; | |
| 542 } | |
| 543 // 4705540: illegal if more characters are found after the first non-digit | |
| 544 if (strlen(s) > 1) { | |
| 545 return false; | |
| 546 } | |
| 547 switch (*s) { | |
| 548 case 'T': case 't': | |
| 549 *result = n * G * K; | |
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550 // Check for overflow. |
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551 if (*result/((julong)G * K) != n) return false; |
| 0 | 552 return true; |
| 553 case 'G': case 'g': | |
| 554 *result = n * G; | |
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555 if (*result/G != n) return false; |
| 0 | 556 return true; |
| 557 case 'M': case 'm': | |
| 558 *result = n * M; | |
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559 if (*result/M != n) return false; |
| 0 | 560 return true; |
| 561 case 'K': case 'k': | |
| 562 *result = n * K; | |
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563 if (*result/K != n) return false; |
| 0 | 564 return true; |
| 565 case '\0': | |
| 566 *result = n; | |
| 567 return true; | |
| 568 default: | |
| 569 return false; | |
| 570 } | |
| 571 } | |
| 572 | |
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573 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
| 0 | 574 if (size < min_size) return arg_too_small; |
| 575 // Check that size will fit in a size_t (only relevant on 32-bit) | |
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576 if (size > max_uintx) return arg_too_big; |
| 0 | 577 return arg_in_range; |
| 578 } | |
| 579 | |
| 580 // Describe an argument out of range error | |
| 581 void Arguments::describe_range_error(ArgsRange errcode) { | |
| 582 switch(errcode) { | |
| 583 case arg_too_big: | |
| 584 jio_fprintf(defaultStream::error_stream(), | |
| 585 "The specified size exceeds the maximum " | |
| 586 "representable size.\n"); | |
| 587 break; | |
| 588 case arg_too_small: | |
| 589 case arg_unreadable: | |
| 590 case arg_in_range: | |
| 591 // do nothing for now | |
| 592 break; | |
| 593 default: | |
| 594 ShouldNotReachHere(); | |
| 595 } | |
| 596 } | |
| 597 | |
| 598 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
| 599 return CommandLineFlags::boolAtPut(name, &value, origin); | |
| 600 } | |
| 601 | |
| 602 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
| 603 double v; | |
| 604 if (sscanf(value, "%lf", &v) != 1) { | |
| 605 return false; | |
| 606 } | |
| 607 | |
| 608 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
| 609 return true; | |
| 610 } | |
| 611 return false; | |
| 612 } | |
| 613 | |
| 614 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
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615 julong v; |
| 0 | 616 intx intx_v; |
| 617 bool is_neg = false; | |
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618 // Check the sign first since atomull() parses only unsigned values. |
| 0 | 619 if (*value == '-') { |
| 620 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
| 621 return false; | |
| 622 } | |
| 623 value++; | |
| 624 is_neg = true; | |
| 625 } | |
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626 if (!atomull(value, &v)) { |
| 0 | 627 return false; |
| 628 } | |
| 629 intx_v = (intx) v; | |
| 630 if (is_neg) { | |
| 631 intx_v = -intx_v; | |
| 632 } | |
| 633 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
| 634 return true; | |
| 635 } | |
| 636 uintx uintx_v = (uintx) v; | |
| 637 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
| 638 return true; | |
| 639 } | |
| 1064 | 640 uint64_t uint64_t_v = (uint64_t) v; |
| 641 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
| 642 return true; | |
| 643 } | |
| 0 | 644 return false; |
| 645 } | |
| 646 | |
| 647 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
| 648 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
| 649 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 650 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 651 return true; |
| 652 } | |
| 653 | |
| 654 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
| 655 const char* old_value = ""; | |
| 656 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
| 657 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
| 658 size_t new_len = strlen(new_value); | |
| 659 const char* value; | |
| 660 char* free_this_too = NULL; | |
| 661 if (old_len == 0) { | |
| 662 value = new_value; | |
| 663 } else if (new_len == 0) { | |
| 664 value = old_value; | |
| 665 } else { | |
| 6197 | 666 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
| 0 | 667 // each new setting adds another LINE to the switch: |
| 668 sprintf(buf, "%s\n%s", old_value, new_value); | |
| 669 value = buf; | |
| 670 free_this_too = buf; | |
| 671 } | |
| 672 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
| 673 // CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 674 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 675 if (free_this_too != NULL) { |
| 676 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
| 6197 | 677 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
| 0 | 678 } |
| 679 return true; | |
| 680 } | |
| 681 | |
| 682 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
| 683 | |
| 684 // range of acceptable characters spelled out for portability reasons | |
| 685 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
| 686 #define BUFLEN 255 | |
| 687 char name[BUFLEN+1]; | |
| 688 char dummy; | |
| 689 | |
| 690 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 691 return set_bool_flag(name, false, origin); | |
| 692 } | |
| 693 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 694 return set_bool_flag(name, true, origin); | |
| 695 } | |
| 696 | |
| 697 char punct; | |
| 698 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
| 699 const char* value = strchr(arg, '=') + 1; | |
| 700 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 701 if (flag != NULL && flag->is_ccstr()) { | |
| 702 if (flag->ccstr_accumulates()) { | |
| 703 return append_to_string_flag(name, value, origin); | |
| 704 } else { | |
| 705 if (value[0] == '\0') { | |
| 706 value = NULL; | |
| 707 } | |
| 708 return set_string_flag(name, value, origin); | |
| 709 } | |
| 710 } | |
| 711 } | |
| 712 | |
| 713 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
| 714 const char* value = strchr(arg, '=') + 1; | |
| 715 // -XX:Foo:=xxx will reset the string flag to the given value. | |
| 716 if (value[0] == '\0') { | |
| 717 value = NULL; | |
| 718 } | |
| 719 return set_string_flag(name, value, origin); | |
| 720 } | |
| 721 | |
| 722 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
| 723 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
| 724 #define NUMBER_RANGE "[0123456789]" | |
| 725 char value[BUFLEN + 1]; | |
| 726 char value2[BUFLEN + 1]; | |
| 727 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
| 728 // Looks like a floating-point number -- try again with more lenient format string | |
| 729 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
| 730 return set_fp_numeric_flag(name, value, origin); | |
| 731 } | |
| 732 } | |
| 733 | |
| 734 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
| 735 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
| 736 return set_numeric_flag(name, value, origin); | |
| 737 } | |
| 738 | |
| 739 return false; | |
| 740 } | |
| 741 | |
| 742 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
| 743 assert(bldarray != NULL, "illegal argument"); | |
| 744 | |
| 745 if (arg == NULL) { | |
| 746 return; | |
| 747 } | |
| 748 | |
| 749 int index = *count; | |
| 750 | |
| 751 // expand the array and add arg to the last element | |
| 752 (*count)++; | |
| 753 if (*bldarray == NULL) { | |
| 6197 | 754 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
| 0 | 755 } else { |
| 6197 | 756 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
| 0 | 757 } |
| 758 (*bldarray)[index] = strdup(arg); | |
| 759 } | |
| 760 | |
| 761 void Arguments::build_jvm_args(const char* arg) { | |
| 762 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
| 763 } | |
| 764 | |
| 765 void Arguments::build_jvm_flags(const char* arg) { | |
| 766 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
| 767 } | |
| 768 | |
| 769 // utility function to return a string that concatenates all | |
| 770 // strings in a given char** array | |
| 771 const char* Arguments::build_resource_string(char** args, int count) { | |
| 772 if (args == NULL || count == 0) { | |
| 773 return NULL; | |
| 774 } | |
| 775 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
| 776 for (int i = 1; i < count; i++) { | |
| 777 length += strlen(args[i]) + 1; // add 1 for a space | |
| 778 } | |
| 779 char* s = NEW_RESOURCE_ARRAY(char, length); | |
| 780 strcpy(s, args[0]); | |
| 781 for (int j = 1; j < count; j++) { | |
| 782 strcat(s, " "); | |
| 783 strcat(s, args[j]); | |
| 784 } | |
| 785 return (const char*) s; | |
| 786 } | |
| 787 | |
| 788 void Arguments::print_on(outputStream* st) { | |
| 789 st->print_cr("VM Arguments:"); | |
| 790 if (num_jvm_flags() > 0) { | |
| 791 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
| 792 } | |
| 793 if (num_jvm_args() > 0) { | |
| 794 st->print("jvm_args: "); print_jvm_args_on(st); | |
| 795 } | |
| 796 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
|
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797 if (_java_class_path != NULL) { |
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798 char* path = _java_class_path->value(); |
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799 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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800 } |
| 0 | 801 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
| 802 } | |
| 803 | |
| 804 void Arguments::print_jvm_flags_on(outputStream* st) { | |
| 805 if (_num_jvm_flags > 0) { | |
| 806 for (int i=0; i < _num_jvm_flags; i++) { | |
| 807 st->print("%s ", _jvm_flags_array[i]); | |
| 808 } | |
| 809 st->print_cr(""); | |
| 810 } | |
| 811 } | |
| 812 | |
| 813 void Arguments::print_jvm_args_on(outputStream* st) { | |
| 814 if (_num_jvm_args > 0) { | |
| 815 for (int i=0; i < _num_jvm_args; i++) { | |
| 816 st->print("%s ", _jvm_args_array[i]); | |
| 817 } | |
| 818 st->print_cr(""); | |
| 819 } | |
| 820 } | |
| 821 | |
| 242 | 822 bool Arguments::process_argument(const char* arg, |
| 823 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
| 824 | |
| 825 JDK_Version since = JDK_Version(); | |
| 0 | 826 |
| 3250 | 827 if (parse_argument(arg, origin) || ignore_unrecognized) { |
| 828 return true; | |
| 0 | 829 } |
| 3250 | 830 |
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831 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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832 const char* const argname = has_plus_minus ? arg + 1 : arg; |
| 3250 | 833 if (is_newly_obsolete(arg, &since)) { |
| 834 char version[256]; | |
| 835 since.to_string(version, sizeof(version)); | |
| 836 warning("ignoring option %s; support was removed in %s", argname, version); | |
| 837 return true; | |
| 838 } | |
| 839 | |
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840 // For locked flags, report a custom error message if available. |
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841 // Otherwise, report the standard unrecognized VM option. |
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842 |
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843 size_t arg_len; |
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844 const char* equal_sign = strchr(argname, '='); |
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845 if (equal_sign == NULL) { |
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846 arg_len = strlen(argname); |
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847 } else { |
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848 arg_len = equal_sign - argname; |
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849 } |
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850 |
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851 Flag* found_flag = Flag::find_flag((char*)argname, arg_len, true); |
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852 if (found_flag != NULL) { |
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853 char locked_message_buf[BUFLEN]; |
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854 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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855 if (strlen(locked_message_buf) == 0) { |
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856 if (found_flag->is_bool() && !has_plus_minus) { |
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857 jio_fprintf(defaultStream::error_stream(), |
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858 "Missing +/- setting for VM option '%s'\n", argname); |
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859 } else if (!found_flag->is_bool() && has_plus_minus) { |
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860 jio_fprintf(defaultStream::error_stream(), |
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861 "Unexpected +/- setting in VM option '%s'\n", argname); |
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862 } else { |
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863 jio_fprintf(defaultStream::error_stream(), |
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864 "Improperly specified VM option '%s'\n", argname); |
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865 } |
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866 } else { |
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867 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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868 } |
| 6017 | 869 } else { |
| 870 jio_fprintf(defaultStream::error_stream(), | |
| 871 "Unrecognized VM option '%s'\n", argname); | |
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872 } |
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873 |
| 3250 | 874 // allow for commandline "commenting out" options like -XX:#+Verbose |
| 875 return arg[0] == '#'; | |
| 0 | 876 } |
| 877 | |
| 878 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
| 879 FILE* stream = fopen(file_name, "rb"); | |
| 880 if (stream == NULL) { | |
| 881 if (should_exist) { | |
| 882 jio_fprintf(defaultStream::error_stream(), | |
| 883 "Could not open settings file %s\n", file_name); | |
| 884 return false; | |
| 885 } else { | |
| 886 return true; | |
| 887 } | |
| 888 } | |
| 889 | |
| 890 char token[1024]; | |
| 891 int pos = 0; | |
| 892 | |
| 893 bool in_white_space = true; | |
| 894 bool in_comment = false; | |
| 895 bool in_quote = false; | |
| 896 char quote_c = 0; | |
| 897 bool result = true; | |
| 898 | |
| 899 int c = getc(stream); | |
| 6901 | 900 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
| 0 | 901 if (in_white_space) { |
| 902 if (in_comment) { | |
| 903 if (c == '\n') in_comment = false; | |
| 904 } else { | |
| 905 if (c == '#') in_comment = true; | |
| 906 else if (!isspace(c)) { | |
| 907 in_white_space = false; | |
| 908 token[pos++] = c; | |
| 909 } | |
| 910 } | |
| 911 } else { | |
| 912 if (c == '\n' || (!in_quote && isspace(c))) { | |
| 913 // token ends at newline, or at unquoted whitespace | |
| 914 // this allows a way to include spaces in string-valued options | |
| 915 token[pos] = '\0'; | |
| 916 logOption(token); | |
| 917 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 918 build_jvm_flags(token); | |
| 919 pos = 0; | |
| 920 in_white_space = true; | |
| 921 in_quote = false; | |
| 922 } else if (!in_quote && (c == '\'' || c == '"')) { | |
| 923 in_quote = true; | |
| 924 quote_c = c; | |
| 925 } else if (in_quote && (c == quote_c)) { | |
| 926 in_quote = false; | |
| 927 } else { | |
| 928 token[pos++] = c; | |
| 929 } | |
| 930 } | |
| 931 c = getc(stream); | |
| 932 } | |
| 933 if (pos > 0) { | |
| 934 token[pos] = '\0'; | |
| 935 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 936 build_jvm_flags(token); | |
| 937 } | |
| 938 fclose(stream); | |
| 939 return result; | |
| 940 } | |
| 941 | |
| 942 //============================================================================================================= | |
| 943 // Parsing of properties (-D) | |
| 944 | |
| 945 const char* Arguments::get_property(const char* key) { | |
| 946 return PropertyList_get_value(system_properties(), key); | |
| 947 } | |
| 948 | |
| 949 bool Arguments::add_property(const char* prop) { | |
| 950 const char* eq = strchr(prop, '='); | |
| 951 char* key; | |
| 952 // ns must be static--its address may be stored in a SystemProperty object. | |
| 953 const static char ns[1] = {0}; | |
| 954 char* value = (char *)ns; | |
| 955 | |
| 956 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
| 6197 | 957 key = AllocateHeap(key_len + 1, mtInternal); |
| 0 | 958 strncpy(key, prop, key_len); |
| 959 key[key_len] = '\0'; | |
| 960 | |
| 961 if (eq != NULL) { | |
| 962 size_t value_len = strlen(prop) - key_len - 1; | |
| 6197 | 963 value = AllocateHeap(value_len + 1, mtInternal); |
| 0 | 964 strncpy(value, &prop[key_len + 1], value_len + 1); |
| 965 } | |
| 966 | |
| 967 if (strcmp(key, "java.compiler") == 0) { | |
| 968 process_java_compiler_argument(value); | |
| 969 FreeHeap(key); | |
| 970 if (eq != NULL) { | |
| 971 FreeHeap(value); | |
| 972 } | |
| 973 return true; | |
| 691 | 974 } else if (strcmp(key, "sun.java.command") == 0) { |
| 0 | 975 _java_command = value; |
| 976 | |
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977 // Record value in Arguments, but let it get passed to Java. |
| 691 | 978 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
| 0 | 979 // launcher.pid property is private and is processed |
| 980 // in process_sun_java_launcher_properties(); | |
| 981 // the sun.java.launcher property is passed on to the java application | |
| 982 FreeHeap(key); | |
| 983 if (eq != NULL) { | |
| 984 FreeHeap(value); | |
| 985 } | |
| 986 return true; | |
| 691 | 987 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 0 | 988 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 989 // its value without going through the property list or making a Java call. | |
| 990 _java_vendor_url_bug = value; | |
| 691 | 991 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 992 PropertyList_unique_add(&_system_properties, key, value, true); | |
| 993 return true; | |
| 0 | 994 } |
| 995 // Create new property and add at the end of the list | |
| 996 PropertyList_unique_add(&_system_properties, key, value); | |
| 997 return true; | |
| 998 } | |
| 999 | |
| 1000 //=========================================================================================================== | |
| 1001 // Setting int/mixed/comp mode flags | |
| 1002 | |
| 1003 void Arguments::set_mode_flags(Mode mode) { | |
| 1004 // Set up default values for all flags. | |
| 1005 // If you add a flag to any of the branches below, | |
| 1006 // add a default value for it here. | |
| 1007 set_java_compiler(false); | |
| 1008 _mode = mode; | |
| 1009 | |
| 1010 // Ensure Agent_OnLoad has the correct initial values. | |
| 1011 // This may not be the final mode; mode may change later in onload phase. | |
| 1012 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1013 (char*)VM_Version::vm_info_string(), false); |
| 0 | 1014 |
| 1015 UseInterpreter = true; | |
| 1016 UseCompiler = true; | |
| 1017 UseLoopCounter = true; | |
| 1018 | |
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1019 #ifndef ZERO |
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1020 // Turn these off for mixed and comp. Leave them on for Zero. |
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1021 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1022 UseFastAccessorMethods = (mode == _int); |
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1023 } |
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1024 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
|
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1025 UseFastEmptyMethods = (mode == _int); |
|
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1026 } |
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1027 #endif |
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1028 |
| 0 | 1029 // Default values may be platform/compiler dependent - |
| 1030 // use the saved values | |
| 1031 ClipInlining = Arguments::_ClipInlining; | |
| 1032 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
| 1033 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
| 1034 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
| 1035 | |
| 1036 // Change from defaults based on mode | |
| 1037 switch (mode) { | |
| 1038 default: | |
| 1039 ShouldNotReachHere(); | |
| 1040 break; | |
| 1041 case _int: | |
| 1042 UseCompiler = false; | |
| 1043 UseLoopCounter = false; | |
| 1044 AlwaysCompileLoopMethods = false; | |
| 1045 UseOnStackReplacement = false; | |
| 1046 break; | |
| 1047 case _mixed: | |
| 1048 // same as default | |
| 1049 break; | |
| 1050 case _comp: | |
| 1051 UseInterpreter = false; | |
| 1052 BackgroundCompilation = false; | |
| 1053 ClipInlining = false; | |
|
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1054 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1055 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1056 // compile a level 4 (C2) and then continue executing it. |
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1057 if (TieredCompilation) { |
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1058 Tier3InvokeNotifyFreqLog = 0; |
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1059 Tier4InvocationThreshold = 0; |
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1060 } |
| 0 | 1061 break; |
| 1062 } | |
| 1063 } | |
| 1064 | |
| 1065 // Conflict: required to use shared spaces (-Xshare:on), but | |
| 1066 // incompatible command line options were chosen. | |
| 1067 | |
| 1068 static void no_shared_spaces() { | |
| 1069 if (RequireSharedSpaces) { | |
| 1070 jio_fprintf(defaultStream::error_stream(), | |
| 1071 "Class data sharing is inconsistent with other specified options.\n"); | |
| 1072 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
| 1073 } else { | |
| 1074 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 1075 } | |
| 1076 } | |
| 1077 | |
| 1783 | 1078 void Arguments::set_tiered_flags() { |
|
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1079 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
| 1783 | 1080 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
|
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1081 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
| 1783 | 1082 } |
| 1083 if (CompilationPolicyChoice < 2) { | |
| 1084 vm_exit_during_initialization( | |
| 1085 "Incompatible compilation policy selected", NULL); | |
| 1086 } | |
|
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1087 // Increase the code cache size - tiered compiles a lot more. |
| 1783 | 1088 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
|
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1089 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
| 1783 | 1090 } |
| 1091 } | |
| 1092 | |
|
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1093 #if INCLUDE_ALL_GCS |
| 4838 | 1094 static void disable_adaptive_size_policy(const char* collector_name) { |
| 1095 if (UseAdaptiveSizePolicy) { | |
| 1096 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
| 1097 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
| 1098 collector_name); | |
| 1099 } | |
| 1100 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
| 1101 } | |
| 1102 } | |
| 1103 | |
| 0 | 1104 void Arguments::set_parnew_gc_flags() { |
| 1064 | 1105 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
|
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1106 "control point invariant"); |
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1107 assert(UseParNewGC, "Error"); |
| 0 | 1108 |
| 4838 | 1109 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
| 1110 disable_adaptive_size_policy("UseParNewGC"); | |
|
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1111 |
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1112 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1113 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1114 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1115 } else if (ParallelGCThreads == 0) { |
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1116 jio_fprintf(defaultStream::error_stream(), |
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1117 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1118 vm_exit(1); |
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1119 } |
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1120 |
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1121 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1122 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1123 // we set them to 1024 and 1024. |
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1124 // See CR 6362902. |
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1125 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1126 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
| 0 | 1127 } |
|
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1128 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1129 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1130 } |
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1131 |
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1132 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1133 // See CR 6362902. |
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1134 if (AlwaysTenure) { |
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1135 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1136 } |
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1137 // When using compressed oops, we use local overflow stacks, |
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1138 // rather than using a global overflow list chained through |
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1139 // the klass word of the object's pre-image. |
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1140 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1141 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1142 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
| 0 | 1143 } |
|
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1144 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
| 0 | 1145 } |
|
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1146 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
| 0 | 1147 } |
| 1148 | |
| 1149 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
| 1150 // sparc/solaris for certain applications, but would gain from | |
| 1151 // further optimization and tuning efforts, and would almost | |
| 1152 // certainly gain from analysis of platform and environment. | |
| 1153 void Arguments::set_cms_and_parnew_gc_flags() { | |
| 1064 | 1154 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
|
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1155 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
|
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1156 |
| 0 | 1157 // If we are using CMS, we prefer to UseParNewGC, |
| 1158 // unless explicitly forbidden. | |
|
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1159 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
|
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1160 FLAG_SET_ERGO(bool, UseParNewGC, true); |
| 0 | 1161 } |
| 1162 | |
|
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1163 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
| 4838 | 1164 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
| 0 | 1165 |
| 1166 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
| 1167 // as needed. | |
|
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1168 if (UseParNewGC) { |
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1169 set_parnew_gc_flags(); |
| 0 | 1170 } |
| 1171 | |
|
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1172 // MaxHeapSize is aligned down in collectorPolicy |
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1173 size_t max_heap = align_size_down(MaxHeapSize, |
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1174 CardTableRS::ct_max_alignment_constraint()); |
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1175 |
| 0 | 1176 // Now make adjustments for CMS |
|
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1177 intx tenuring_default = (intx)6; |
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1178 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1179 |
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1180 // Preferred young gen size for "short" pauses: |
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1181 // upper bound depends on # of threads and NewRatio. |
| 0 | 1182 const uintx parallel_gc_threads = |
| 1183 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
| 1184 const size_t preferred_max_new_size_unaligned = | |
|
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1185 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1186 size_t preferred_max_new_size = |
| 0 | 1187 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
| 1188 | |
| 1189 // Unless explicitly requested otherwise, size young gen | |
|
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1190 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
|
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1191 |
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1192 // If either MaxNewSize or NewRatio is set on the command line, |
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1193 // assume the user is trying to set the size of the young gen. |
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1194 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1195 |
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1196 // Set MaxNewSize to our calculated preferred_max_new_size unless |
|
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1197 // NewSize was set on the command line and it is larger than |
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1198 // preferred_max_new_size. |
| 0 | 1199 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
|
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1200 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
| 0 | 1201 } else { |
|
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1202 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
| 0 | 1203 } |
| 1064 | 1204 if (PrintGCDetails && Verbose) { |
|
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1205 // Too early to use gclog_or_tty |
|
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1206 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
|
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1207 } |
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1208 |
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1209 // Code along this path potentially sets NewSize and OldSize |
|
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1210 |
|
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1211 assert(max_heap >= InitialHeapSize, "Error"); |
|
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1212 assert(max_heap >= NewSize, "Error"); |
| 0 | 1213 |
| 1064 | 1214 if (PrintGCDetails && Verbose) { |
|
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1215 // Too early to use gclog_or_tty |
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1216 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1217 " initial_heap_size: " SIZE_FORMAT |
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1218 " max_heap: " SIZE_FORMAT, |
| 1064 | 1219 min_heap_size(), InitialHeapSize, max_heap); |
|
13
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1220 } |
|
2368
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1221 size_t min_new = preferred_max_new_size; |
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1222 if (FLAG_IS_CMDLINE(NewSize)) { |
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1223 min_new = NewSize; |
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1224 } |
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1225 if (max_heap > min_new && min_heap_size() > min_new) { |
| 0 | 1226 // Unless explicitly requested otherwise, make young gen |
| 1227 // at least min_new, and at most preferred_max_new_size. | |
| 1228 if (FLAG_IS_DEFAULT(NewSize)) { | |
|
13
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1229 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
|
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1230 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
| 1064 | 1231 if (PrintGCDetails && Verbose) { |
|
13
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1232 // Too early to use gclog_or_tty |
|
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1233 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
|
13
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1234 } |
| 0 | 1235 } |
| 1236 // Unless explicitly requested otherwise, size old gen | |
|
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1237 // so it's NewRatio x of NewSize. |
| 0 | 1238 if (FLAG_IS_DEFAULT(OldSize)) { |
| 1239 if (max_heap > NewSize) { | |
|
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1240 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
| 1064 | 1241 if (PrintGCDetails && Verbose) { |
|
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1242 // Too early to use gclog_or_tty |
|
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1243 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
|
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1244 } |
| 0 | 1245 } |
| 1246 } | |
| 1247 } | |
| 1248 } | |
| 1249 // Unless explicitly requested otherwise, definitely | |
| 1250 // promote all objects surviving "tenuring_default" scavenges. | |
| 1251 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
| 1252 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 6818 | 1253 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
| 0 | 1254 } |
| 1255 // If we decided above (or user explicitly requested) | |
| 1256 // `promote all' (via MaxTenuringThreshold := 0), | |
| 1257 // prefer minuscule survivor spaces so as not to waste | |
| 1258 // space for (non-existent) survivors | |
| 1259 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
| 8035 | 1260 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
| 0 | 1261 } |
| 1262 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
| 1263 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
| 1264 // This is done in order to make ParNew+CMS configuration to work | |
| 1265 // with YoungPLABSize and OldPLABSize options. | |
| 1266 // See CR 6362902. | |
| 1267 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1268 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
|
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1269 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
|
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1270 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
|
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1271 // the value (either from the command line or ergonomics) of |
|
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1272 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
|
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1273 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
|
1145
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1274 } else { |
| 0 | 1275 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
| 1276 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
| 1277 // we'll let it to take precedence. | |
| 1278 jio_fprintf(defaultStream::error_stream(), | |
|
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1279 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
|
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1280 " options are specified for the CMS collector." |
|
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1281 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
| 0 | 1282 } |
| 1283 } | |
|
1145
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1284 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
|
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1285 // OldPLAB sizing manually turned off: Use a larger default setting, |
|
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1286 // unless it was manually specified. This is because a too-low value |
|
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1287 // will slow down scavenges. |
|
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1288 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
|
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1289 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
|
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1290 } |
|
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|
1291 } |
|
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1292 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
|
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|
1293 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
|
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1294 // If either of the static initialization defaults have changed, note this |
|
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|
1295 // modification. |
|
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1296 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
|
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|
1297 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
|
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1298 } |
| 1284 | 1299 if (PrintGCDetails && Verbose) { |
| 1300 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1301 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1302 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1303 } | |
| 0 | 1304 } |
|
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1305 #endif // INCLUDE_ALL_GCS |
| 0 | 1306 |
|
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1307 void set_object_alignment() { |
|
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1308 // Object alignment. |
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1309 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
|
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|
1310 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
|
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1311 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
|
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|
1312 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
|
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|
1313 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
|
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1314 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
|
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1315 |
|
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1316 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
|
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1317 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
|
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1318 |
|
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1319 // Oop encoding heap max |
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1320 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
|
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1321 |
|
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1322 #if INCLUDE_ALL_GCS |
|
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1323 // Set CMS global values |
|
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1324 CompactibleFreeListSpace::set_cms_values(); |
|
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1325 #endif // INCLUDE_ALL_GCS |
|
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1326 } |
|
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1327 |
|
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1328 bool verify_object_alignment() { |
|
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1329 // Object alignment. |
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1330 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1331 jio_fprintf(defaultStream::error_stream(), |
|
1829
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1332 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
|
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1333 (int)ObjectAlignmentInBytes); |
|
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1334 return false; |
|
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1335 } |
|
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1336 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1337 jio_fprintf(defaultStream::error_stream(), |
|
1829
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1338 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
|
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1339 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1340 return false; |
|
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1341 } |
|
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1342 // It does not make sense to have big object alignment |
|
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1343 // since a space lost due to alignment will be greater |
|
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1344 // then a saved space from compressed oops. |
|
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1345 if ((int)ObjectAlignmentInBytes > 256) { |
|
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1346 jio_fprintf(defaultStream::error_stream(), |
|
7461
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1347 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
|
1829
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1348 (int)ObjectAlignmentInBytes); |
|
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1349 return false; |
|
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1350 } |
|
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1351 // In case page size is very small. |
|
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1352 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
|
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1353 jio_fprintf(defaultStream::error_stream(), |
|
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1354 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
|
1829
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1355 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
|
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1356 return false; |
|
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1357 } |
|
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1358 return true; |
|
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1359 } |
|
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1360 |
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1361 inline uintx max_heap_for_compressed_oops() { |
| 1963 | 1362 // Avoid sign flip. |
|
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1363 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
| 1963 | 1364 return 0; |
| 1365 } | |
|
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1366 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
| 1064 | 1367 NOT_LP64(ShouldNotReachHere(); return 0); |
|
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1368 } |
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1369 |
| 0 | 1370 bool Arguments::should_auto_select_low_pause_collector() { |
| 1371 if (UseAutoGCSelectPolicy && | |
| 1372 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
| 1373 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
| 1374 if (PrintGCDetails) { | |
| 1375 // Cannot use gclog_or_tty yet. | |
| 1376 tty->print_cr("Automatic selection of the low pause collector" | |
| 1377 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
| 1378 } | |
| 1379 return true; | |
| 1380 } | |
| 1381 return false; | |
| 1382 } | |
| 1383 | |
| 1384 void Arguments::set_ergonomics_flags() { | |
| 1385 | |
| 4946 | 1386 if (os::is_server_class_machine()) { |
| 0 | 1387 // If no other collector is requested explicitly, |
| 1388 // let the VM select the collector based on | |
| 1389 // machine class and automatic selection policy. | |
| 1390 if (!UseSerialGC && | |
| 1391 !UseConcMarkSweepGC && | |
|
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1392 !UseG1GC && |
| 0 | 1393 !UseParNewGC && |
| 1394 FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1395 if (should_auto_select_low_pause_collector()) { | |
| 1396 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
| 1397 } else { | |
| 1398 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
| 1399 } | |
|
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1400 } |
|
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1401 // Shared spaces work fine with other GCs but causes bytecode rewriting |
|
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1402 // to be disabled, which hurts interpreter performance and decreases |
|
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1403 // server performance. On server class machines, keep the default |
|
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1404 // off unless it is asked for. Future work: either add bytecode rewriting |
|
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1405 // at link time, or rewrite bytecodes in non-shared methods. |
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1406 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
| 0 | 1407 no_shared_spaces(); |
| 1408 } | |
| 1409 } | |
|
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1410 |
| 1010 | 1411 #ifndef ZERO |
|
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1412 #ifdef _LP64 |
|
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1413 // Check that UseCompressedOops can be set with the max heap size allocated |
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1414 // by ergonomics. |
| 187 | 1415 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
| 1783 | 1416 #if !defined(COMPILER1) || defined(TIERED) |
| 2228 | 1417 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 932 | 1418 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
|
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1419 } |
| 1060 | 1420 #endif |
|
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1421 #ifdef _WIN64 |
|
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1422 if (UseLargePages && UseCompressedOops) { |
|
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1423 // Cannot allocate guard pages for implicit checks in indexed addressing |
|
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1424 // mode, when large pages are specified on windows. |
|
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1425 // This flag could be switched ON if narrow oop base address is set to 0, |
|
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1426 // see code in Universe::initialize_heap(). |
|
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1427 Universe::set_narrow_oop_use_implicit_null_checks(false); |
|
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1428 } |
|
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1429 #endif // _WIN64 |
|
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1430 } else { |
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1431 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 344 | 1432 warning("Max heap size too large for Compressed Oops"); |
|
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1433 FLAG_SET_DEFAULT(UseCompressedOops, false); |
|
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1434 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
|
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1435 } |
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1436 } |
|
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1437 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1438 if (!UseCompressedOops) { |
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1439 if (UseCompressedKlassPointers) { |
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1440 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1441 } |
|
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1442 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1443 } else { |
|
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1444 // Turn on UseCompressedKlassPointers too |
|
6848
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|
1445 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
|
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|
1446 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
|
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1447 } |
|
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1448 // Set the ClassMetaspaceSize to something that will not need to be |
|
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1449 // expanded, since it cannot be expanded. |
|
7982
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|
1450 if (UseCompressedKlassPointers) { |
|
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|
1451 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
|
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|
1452 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
|
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|
1453 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
|
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|
1454 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
|
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|
1455 // 100,000 classes seems like a good size, so 100M assumes around 1K |
|
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|
1456 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
|
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|
1457 // size per klass. Eventually, this will be parameterized because it |
|
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|
1458 // would also be useful to determine the optimal size of the |
|
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|
1459 // systemDictionary. |
|
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|
1460 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
|
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1461 } |
|
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1462 } |
|
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1463 } |
|
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1464 // Also checks that certain machines are slower with compressed oops |
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1465 // in vm_version initialization code. |
|
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1466 #endif // _LP64 |
| 1010 | 1467 #endif // !ZERO |
| 0 | 1468 } |
| 1469 | |
| 1470 void Arguments::set_parallel_gc_flags() { | |
|
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1471 assert(UseParallelGC || UseParallelOldGC, "Error"); |
| 4879 | 1472 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
| 1473 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
| 1474 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
| 0 | 1475 } |
| 4879 | 1476 FLAG_SET_DEFAULT(UseParallelGC, true); |
| 0 | 1477 |
| 1478 // If no heap maximum was requested explicitly, use some reasonable fraction | |
| 1479 // of the physical memory, up to a maximum of 1GB. | |
|
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1480 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
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|
1481 Abstract_VM_Version::parallel_worker_threads()); |
|
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1482 if (ParallelGCThreads == 0) { |
|
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|
1483 jio_fprintf(defaultStream::error_stream(), |
|
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|
1484 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
|
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|
1485 vm_exit(1); |
|
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|
1486 } |
|
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|
1487 |
|
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|
1488 |
|
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|
1489 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
|
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1490 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
|
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|
1491 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
|
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1492 // See CR 6362902 for details. |
|
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|
1493 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
|
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|
1494 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
|
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|
1495 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
| 0 | 1496 } |
|
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|
1497 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
|
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|
1498 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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|
1499 } |
|
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|
1500 } |
|
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|
1501 |
|
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1502 if (UseParallelOldGC) { |
|
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|
1503 // Par compact uses lower default values since they are treated as |
|
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|
1504 // minimums. These are different defaults because of the different |
|
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|
1505 // interpretation and are not ergonomically set. |
|
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|
1506 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
|
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|
1507 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
| 0 | 1508 } |
| 1509 } | |
| 1510 } | |
| 1511 | |
|
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1512 void Arguments::set_g1_gc_flags() { |
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1513 assert(UseG1GC, "Error"); |
|
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|
1514 #ifdef COMPILER1 |
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1515 FastTLABRefill = false; |
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1516 #endif |
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1517 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
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1518 Abstract_VM_Version::parallel_worker_threads()); |
|
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1519 if (ParallelGCThreads == 0) { |
|
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|
1520 FLAG_SET_DEFAULT(ParallelGCThreads, |
| 751 | 1521 Abstract_VM_Version::parallel_worker_threads()); |
|
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1522 } |
| 751 | 1523 |
|
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1524 // MarkStackSize will be set (if it hasn't been set by the user) |
|
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1525 // when concurrent marking is initialized. |
|
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1526 // Its value will be based upon the number of parallel marking threads. |
|
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1527 // But we do set the maximum mark stack size here. |
|
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1528 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
|
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|
1529 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
| 1284 | 1530 } |
| 1356 | 1531 |
| 1532 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
| 1533 // In G1, we want the default GC overhead goal to be higher than | |
| 1534 // say in PS. So we set it here to 10%. Otherwise the heap might | |
| 1535 // be expanded more aggressively than we would like it to. In | |
| 1536 // fact, even 10% seems to not be high enough in some cases | |
| 1537 // (especially small GC stress tests that the main thing they do | |
| 1538 // is allocation). We might consider increase it further. | |
| 1539 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
| 1540 } | |
|
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1541 |
|
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|
1542 if (PrintGCDetails && Verbose) { |
|
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1543 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
|
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|
1544 MarkStackSize / K, MarkStackSizeMax / K); |
|
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|
1545 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
|
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|
1546 } |
|
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|
1547 } |
|
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|
1548 |
| 1064 | 1549 void Arguments::set_heap_size() { |
| 1550 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
| 1551 // Deprecated flag | |
| 1552 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
| 1553 } | |
| 1554 | |
| 1555 const julong phys_mem = | |
| 1556 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
| 1557 : (julong)MaxRAM; | |
| 1558 | |
| 1559 // If the maximum heap size has not been set with -Xmx, | |
| 1560 // then set it as fraction of the size of physical memory, | |
| 1561 // respecting the maximum and minimum sizes of the heap. | |
|
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|
1562 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
| 1064 | 1563 julong reasonable_max = phys_mem / MaxRAMFraction; |
| 1564 | |
| 1565 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
| 1566 // Small physical memory, so use a minimum fraction of it for the heap | |
| 1567 reasonable_max = phys_mem / MinRAMFraction; | |
| 1568 } else { | |
| 1569 // Not-small physical memory, so require a heap at least | |
| 1570 // as large as MaxHeapSize | |
| 1571 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
| 1572 } | |
| 1573 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
| 1574 // Limit the heap size to ErgoHeapSizeLimit | |
| 1575 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
|
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|
1576 } |
| 1064 | 1577 if (UseCompressedOops) { |
| 1578 // Limit the heap size to the maximum possible when using compressed oops | |
| 1963 | 1579 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
| 1580 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
| 1581 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
| 1582 // but it should be not less than default MaxHeapSize. | |
| 1583 max_coop_heap -= HeapBaseMinAddress; | |
| 1584 } | |
| 1585 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
| 1064 | 1586 } |
| 1587 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
| 1588 | |
| 1589 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
| 1590 // An initial heap size was specified on the command line, | |
| 1591 // so be sure that the maximum size is consistent. Done | |
| 1592 // after call to allocatable_physical_memory because that | |
| 1593 // method might reduce the allocation size. | |
| 1594 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
| 1595 } | |
| 1596 | |
|
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1597 if (PrintGCDetails && Verbose) { |
|
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|
1598 // Cannot use gclog_or_tty yet. |
| 1064 | 1599 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
|
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|
1600 } |
| 1064 | 1601 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
| 1602 } | |
| 1603 | |
| 1604 // If the initial_heap_size has not been set with InitialHeapSize | |
| 1605 // or -Xms, then set it as fraction of the size of physical memory, | |
| 1606 // respecting the maximum and minimum sizes of the heap. | |
| 1607 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
|
1074
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|
1608 julong reasonable_minimum = (julong)(OldSize + NewSize); |
|
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|
1609 |
|
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|
1610 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
|
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|
1611 |
|
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|
1612 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
|
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|
1613 |
| 1064 | 1614 julong reasonable_initial = phys_mem / InitialRAMFraction; |
| 1615 | |
|
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|
1616 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
| 1064 | 1617 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1618 | |
| 1619 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
| 1620 | |
| 1621 if (PrintGCDetails && Verbose) { | |
| 1622 // Cannot use gclog_or_tty yet. | |
| 1623 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
|
1074
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|
1624 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
|
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|
1625 } |
| 1064 | 1626 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
|
1074
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|
1627 set_min_heap_size((uintx)reasonable_minimum); |
|
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|
1628 } |
|
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|
1629 } |
|
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|
1630 |
| 0 | 1631 // This must be called after ergonomics because we want bytecode rewriting |
| 1632 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
| 1633 void Arguments::set_bytecode_flags() { | |
| 1634 // Better not attempt to store into a read-only space. | |
| 1635 if (UseSharedSpaces) { | |
| 1636 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
| 1637 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1638 } | |
| 1639 | |
| 1640 if (!RewriteBytecodes) { | |
| 1641 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1642 } | |
| 1643 } | |
| 1644 | |
| 1645 // Aggressive optimization flags -XX:+AggressiveOpts | |
| 1646 void Arguments::set_aggressive_opts_flags() { | |
|
17
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|
1647 #ifdef COMPILER2 |
|
ff5961f4c095
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|
1648 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
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|
1649 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
|
ff5961f4c095
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diff
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|
1650 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
|
ff5961f4c095
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|
1651 } |
|
ff5961f4c095
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|
1652 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
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0
diff
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|
1653 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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|
1654 } |
|
ff5961f4c095
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diff
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|
1655 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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diff
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|
1656 // Feed the cache size setting into the JDK |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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diff
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|
1657 char buffer[1024]; |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
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diff
changeset
|
1658 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
|
17
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6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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diff
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|
1659 add_property(buffer); |
|
ff5961f4c095
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diff
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|
1660 } |
|
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
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diff
changeset
|
1661 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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|
1662 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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|
1663 } |
|
17
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|
1664 #endif |
|
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|
1665 |
| 0 | 1666 if (AggressiveOpts) { |
| 61 | 1667 // Sample flag setting code |
| 1668 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
| 1669 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
| 1670 // } | |
| 0 | 1671 } |
| 1672 } | |
| 1673 | |
| 1674 //=========================================================================================================== | |
| 1675 // Parsing of java.compiler property | |
| 1676 | |
| 1677 void Arguments::process_java_compiler_argument(char* arg) { | |
| 1678 // For backwards compatibility, Djava.compiler=NONE or "" | |
| 1679 // causes us to switch to -Xint mode UNLESS -Xdebug | |
| 1680 // is also specified. | |
| 1681 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
| 1682 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
| 1683 } | |
| 1684 } | |
| 1685 | |
| 1686 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
| 1687 _sun_java_launcher = strdup(launcher); | |
|
2302
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diff
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|
1688 if (strcmp("gamma", _sun_java_launcher) == 0) { |
|
da091bb67459
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diff
changeset
|
1689 _created_by_gamma_launcher = true; |
|
da091bb67459
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|
1690 } |
| 0 | 1691 } |
| 1692 | |
| 1693 bool Arguments::created_by_java_launcher() { | |
| 1694 assert(_sun_java_launcher != NULL, "property must have value"); | |
| 1695 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
| 1696 } | |
| 1697 | |
|
2302
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|
1698 bool Arguments::created_by_gamma_launcher() { |
|
da091bb67459
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|
1699 return _created_by_gamma_launcher; |
|
da091bb67459
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|
1700 } |
|
da091bb67459
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|
1701 |
| 0 | 1702 //=========================================================================================================== |
| 1703 // Parsing of main arguments | |
| 1704 | |
|
1244
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changeset
|
1705 bool Arguments::verify_interval(uintx val, uintx min, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1706 uintx max, const char* name) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1707 // Returns true iff value is in the inclusive interval [min..max] |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1708 // false, otherwise. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1709 if (val >= min && val <= max) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1710 return true; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1711 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1712 jio_fprintf(defaultStream::error_stream(), |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1713 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
|
745c853ee57f
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|
1714 " and " UINTX_FORMAT "\n", |
|
745c853ee57f
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|
1715 name, val, min, max); |
|
745c853ee57f
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|
1716 return false; |
|
745c853ee57f
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|
1717 } |
|
745c853ee57f
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|
1718 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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|
1719 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
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|
1720 // Returns true if given value is at least specified min threshold |
|
1744
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6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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|
1721 // false, otherwise. |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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|
1722 if (val >= min ) { |
|
f8c5d1bdaad4
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|
1723 return true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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|
1724 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1725 jio_fprintf(defaultStream::error_stream(), |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1726 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1727 name, val, min); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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|
1728 return false; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1729 } |
|
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|
1730 |
| 0 | 1731 bool Arguments::verify_percentage(uintx value, const char* name) { |
| 1732 if (value <= 100) { | |
| 1733 return true; | |
| 1734 } | |
| 1735 jio_fprintf(defaultStream::error_stream(), | |
| 1736 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
| 1737 name, value); | |
| 1738 return false; | |
| 1739 } | |
| 1740 | |
| 1741 static bool verify_serial_gc_flags() { | |
| 1742 return (UseSerialGC && | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
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parents:
932
diff
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|
1743 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
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|
1744 UseParallelGC || UseParallelOldGC)); |
| 0 | 1745 } |
| 1746 | |
|
3767
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parents:
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diff
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|
1747 // check if do gclog rotation |
|
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|
1748 // +UseGCLogFileRotation is a must, |
|
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|
1749 // no gc log rotation when log file not supplied or |
|
2a241e764894
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|
1750 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1751 void check_gclog_consistency() { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1752 if (UseGCLogFileRotation) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1753 if ((Arguments::gc_log_filename() == NULL) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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|
1754 (NumberOfGCLogFiles == 0) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
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|
1755 (GCLogFileSize == 0)) { |
|
2a241e764894
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3349
diff
changeset
|
1756 jio_fprintf(defaultStream::output_stream(), |
|
3769
ef2d1b8f2dd4
7051430: CMS: ongoing CMS cycle should terminate abruptly to allow prompt JVM termination at exit
ysr
parents:
3767
diff
changeset
|
1757 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
|
3767
2a241e764894
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parents:
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changeset
|
1758 "where num_of_file > 0 and num_of_size > 0\n" |
|
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6941923: RFE: Handling large log files produced by long running Java Applications
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|
1759 "GC log rotation is turned off\n"); |
|
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|
1760 UseGCLogFileRotation = false; |
|
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|
1761 } |
|
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|
1762 } |
|
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|
1763 |
|
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|
1764 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
|
2a241e764894
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|
1765 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
|
2a241e764894
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|
1766 jio_fprintf(defaultStream::output_stream(), |
|
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|
1767 "GCLogFileSize changed to minimum 8K\n"); |
|
2a241e764894
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|
1768 } |
|
2a241e764894
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|
1769 } |
|
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|
1770 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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|
1771 // Check consistency of GC selection |
|
28372612af5e
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|
1772 bool Arguments::check_gc_consistency() { |
|
3767
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|
1773 check_gclog_consistency(); |
|
10
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|
1774 bool status = true; |
|
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|
1775 // Ensure that the user has not selected conflicting sets |
|
28372612af5e
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diff
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|
1776 // of collectors. [Note: this check is merely a user convenience; |
|
28372612af5e
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diff
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|
1777 // collectors over-ride each other so that only a non-conflicting |
|
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|
1778 // set is selected; however what the user gets is not what they |
|
28372612af5e
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jmasa
parents:
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diff
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|
1779 // may have expected from the combination they asked for. It's |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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diff
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|
1780 // better to reduce user confusion by not allowing them to |
|
28372612af5e
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diff
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|
1781 // select conflicting combinations. |
|
28372612af5e
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jmasa
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|
1782 uint i = 0; |
|
28372612af5e
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diff
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|
1783 if (UseSerialGC) i++; |
|
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diff
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|
1784 if (UseConcMarkSweepGC || UseParNewGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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diff
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|
1785 if (UseParallelGC || UseParallelOldGC) i++; |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
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|
1786 if (UseG1GC) i++; |
|
10
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|
1787 if (i > 1) { |
|
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|
1788 jio_fprintf(defaultStream::error_stream(), |
|
28372612af5e
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|
1789 "Conflicting collector combinations in option list; " |
|
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|
1790 "please refer to the release notes for the combinations " |
|
28372612af5e
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jmasa
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diff
changeset
|
1791 "allowed\n"); |
|
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diff
changeset
|
1792 status = false; |
|
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|
1793 } |
|
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|
1794 |
|
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jmasa
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diff
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|
1795 return status; |
|
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|
1796 } |
|
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jmasa
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|
1797 |
|
7452
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|
1798 void Arguments::check_deprecated_gcs() { |
|
e0ab18eafbde
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|
1799 if (UseConcMarkSweepGC && !UseParNewGC) { |
|
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|
1800 warning("Using the DefNew young collector with the CMS collector is deprecated " |
|
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|
1801 "and will likely be removed in a future release"); |
|
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|
1802 } |
|
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|
1803 |
|
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|
1804 if (UseParNewGC && !UseConcMarkSweepGC) { |
|
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8003820: Deprecate untested and rarely used GC combinations
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|
1805 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
|
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|
1806 // set up UseSerialGC properly, so that can't be used in the check here. |
|
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|
1807 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
|
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|
1808 "and will likely be removed in a future release"); |
|
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|
1809 } |
| 7453 | 1810 |
| 1811 if (CMSIncrementalMode) { | |
| 1812 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
| 1813 } | |
|
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|
1814 } |
|
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|
1815 |
| 8734 | 1816 void Arguments::check_deprecated_gc_flags() { |
| 1817 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
| 1818 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
| 1819 "and will likely be removed in future release"); | |
| 1820 } | |
| 1821 } | |
| 1822 | |
|
1744
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|
1823 // Check stack pages settings |
|
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|
1824 bool Arguments::check_stack_pages() |
|
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|
1825 { |
|
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|
1826 bool status = true; |
|
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|
1827 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
|
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|
1828 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
|
1867
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|
1829 // greater stack shadow pages can't generate instruction to bang stack |
|
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|
1830 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
|
1744
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|
1831 return status; |
|
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|
1832 } |
|
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|
1833 |
| 0 | 1834 // Check the consistency of vm_init_args |
| 1835 bool Arguments::check_vm_args_consistency() { | |
| 1836 // Method for adding checks for flag consistency. | |
| 1837 // The intent is to warn the user of all possible conflicts, | |
| 1838 // before returning an error. | |
| 1839 // Note: Needs platform-dependent factoring. | |
| 1840 bool status = true; | |
| 1841 | |
| 1842 #if ( (defined(COMPILER2) && defined(SPARC))) | |
| 1843 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
| 1844 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
| 1845 // x86. Normally, VM_Version_init must be called from init_globals in | |
| 1846 // init.cpp, which is called by the initial java thread *after* arguments | |
| 1847 // have been parsed. VM_Version_init gets called twice on sparc. | |
| 1848 extern void VM_Version_init(); | |
| 1849 VM_Version_init(); | |
| 1850 if (!VM_Version::has_v9()) { | |
| 1851 jio_fprintf(defaultStream::error_stream(), | |
| 1852 "V8 Machine detected, Server requires V9\n"); | |
| 1853 status = false; | |
| 1854 } | |
| 1855 #endif /* COMPILER2 && SPARC */ | |
| 1856 | |
| 1857 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
| 1858 // builds so the cost of stack banging can be measured. | |
| 1859 #if (defined(PRODUCT) && defined(SOLARIS)) | |
| 1860 if (!UseBoundThreads && !UseStackBanging) { | |
| 1861 jio_fprintf(defaultStream::error_stream(), | |
| 1862 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
| 1863 | |
| 1864 status = false; | |
| 1865 } | |
| 1866 #endif | |
| 1867 | |
| 1868 if (TLABRefillWasteFraction == 0) { | |
| 1869 jio_fprintf(defaultStream::error_stream(), | |
| 1870 "TLABRefillWasteFraction should be a denominator, " | |
| 1871 "not " SIZE_FORMAT "\n", | |
| 1872 TLABRefillWasteFraction); | |
| 1873 status = false; | |
| 1874 } | |
| 1875 | |
|
10
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|
1876 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
| 0 | 1877 "AdaptiveSizePolicyWeight"); |
|
10
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|
1878 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
|
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|
1879 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
|
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|
1880 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
| 0 | 1881 |
|
6982
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changeset
|
1882 // Divide by bucket size to prevent a large size from causing rollover when |
|
e4f764ddb06a
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diff
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|
1883 // calculating amount of memory needed to be allocated for the String table. |
|
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|
1884 status = status && verify_interval(StringTableSize, defaultStringTableSize, |
|
e4f764ddb06a
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|
1885 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
|
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|
1886 |
| 0 | 1887 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
| 1888 jio_fprintf(defaultStream::error_stream(), | |
| 1889 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
| 1890 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
| 1891 MinHeapFreeRatio, MaxHeapFreeRatio); | |
| 1892 status = false; | |
| 1893 } | |
| 1894 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
| 1895 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
| 1896 | |
|
8040
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|
1897 // Min/MaxMetaspaceFreeRatio |
|
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|
1898 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
|
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|
1899 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
|
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1900 |
|
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1901 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
|
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1902 jio_fprintf(defaultStream::error_stream(), |
|
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1903 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
|
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1904 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
|
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1905 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
|
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1906 MinMetaspaceFreeRatio, |
|
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1907 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
|
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1908 MaxMetaspaceFreeRatio); |
|
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|
1909 status = false; |
|
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|
1910 } |
|
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|
1911 |
|
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1912 // Trying to keep 100% free is not practical |
|
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1913 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
|
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1914 |
| 0 | 1915 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
| 1916 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
| 1917 } | |
| 1918 | |
|
483
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|
1919 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
|
0f773163217d
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1920 // Settings to encourage splitting. |
|
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|
1921 if (!FLAG_IS_CMDLINE(NewRatio)) { |
| 8035 | 1922 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
|
483
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|
1923 } |
|
0f773163217d
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|
1924 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
|
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1925 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
|
0f773163217d
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|
1926 } |
|
0f773163217d
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|
1927 } |
|
0f773163217d
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|
1928 |
|
10
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changeset
|
1929 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
|
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|
1930 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
| 0 | 1931 if (GCTimeLimit == 100) { |
| 1932 // Turn off gc-overhead-limit-exceeded checks | |
| 1933 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
| 1934 } | |
| 1935 | |
|
10
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|
1936 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
| 0 | 1937 |
|
10
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|
1938 status = status && check_gc_consistency(); |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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|
1939 status = status && check_stack_pages(); |
| 0 | 1940 |
| 1941 if (_has_alloc_profile) { | |
| 1942 if (UseParallelGC || UseParallelOldGC) { | |
| 1943 jio_fprintf(defaultStream::error_stream(), | |
| 1944 "error: invalid argument combination.\n" | |
| 1945 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1946 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
| 1947 status = false; | |
| 1948 } | |
| 1949 if (UseConcMarkSweepGC) { | |
| 1950 jio_fprintf(defaultStream::error_stream(), | |
| 1951 "error: invalid argument combination.\n" | |
| 1952 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1953 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
| 1954 status = false; | |
| 1955 } | |
| 1956 } | |
| 1957 | |
| 1958 if (CMSIncrementalMode) { | |
| 1959 if (!UseConcMarkSweepGC) { | |
| 1960 jio_fprintf(defaultStream::error_stream(), | |
| 1961 "error: invalid argument combination.\n" | |
| 1962 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
| 1963 "selected in order\nto use CMSIncrementalMode.\n"); | |
| 1964 status = false; | |
| 1965 } else { | |
|
10
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|
1966 status = status && verify_percentage(CMSIncrementalDutyCycle, |
| 0 | 1967 "CMSIncrementalDutyCycle"); |
|
10
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diff
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|
1968 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
| 0 | 1969 "CMSIncrementalDutyCycleMin"); |
|
10
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|
1970 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
| 0 | 1971 "CMSIncrementalSafetyFactor"); |
|
10
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|
1972 status = status && verify_percentage(CMSIncrementalOffset, |
| 0 | 1973 "CMSIncrementalOffset"); |
|
10
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|
1974 status = status && verify_percentage(CMSExpAvgFactor, |
| 0 | 1975 "CMSExpAvgFactor"); |
| 1976 // If it was not set on the command line, set | |
| 1977 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
| 1978 if (CMSInitiatingOccupancyFraction < 0) { | |
| 1979 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
| 1980 } | |
| 1981 } | |
| 1982 } | |
| 1983 | |
| 1984 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
| 1985 // insists that we hold the requisite locks so that the iteration is | |
| 1986 // MT-safe. For the verification at start-up and shut-down, we don't | |
| 1987 // yet have a good way of acquiring and releasing these locks, | |
| 1988 // which are not visible at the CollectedHeap level. We want to | |
| 1989 // be able to acquire these locks and then do the iteration rather | |
| 1990 // than just disable the lock verification. This will be fixed under | |
| 1991 // bug 4788986. | |
| 1992 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
| 1993 if (VerifyGCStartAt == 0) { | |
| 1994 warning("Heap verification at start-up disabled " | |
| 1995 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1996 VerifyGCStartAt = 1; // Disable verification at start-up | |
| 1997 } | |
| 1998 if (VerifyBeforeExit) { | |
| 1999 warning("Heap verification at shutdown disabled " | |
| 2000 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 2001 VerifyBeforeExit = false; // Disable verification at shutdown | |
| 2002 } | |
| 2003 } | |
| 2004 | |
| 2005 // Note: only executed in non-PRODUCT mode | |
| 2006 if (!UseAsyncConcMarkSweepGC && | |
| 2007 (ExplicitGCInvokesConcurrent || | |
| 2008 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
| 2009 jio_fprintf(defaultStream::error_stream(), | |
|
6628
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7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
brutisso
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6266
diff
changeset
|
2010 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
| 0 | 2011 " with -UseAsyncConcMarkSweepGC"); |
| 2012 status = false; | |
| 2013 } | |
| 2014 | |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2015 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
|
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2016 |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2017 #if INCLUDE_ALL_GCS |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2018 if (UseG1GC) { |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2019 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
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1257
diff
changeset
|
2020 "InitiatingHeapOccupancyPercent"); |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2021 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2022 "G1RefProcDrainInterval"); |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2023 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2024 "G1ConcMarkStepDurationMillis"); |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2025 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2026 #endif // INCLUDE_ALL_GCS |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2027 |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2028 status = status && verify_interval(RefDiscoveryPolicy, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2029 ReferenceProcessor::DiscoveryPolicyMin, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2030 ReferenceProcessor::DiscoveryPolicyMax, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2031 "RefDiscoveryPolicy"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2032 |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2033 // Limit the lower bound of this flag to 1 as it is used in a division |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2034 // expression. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2035 status = status && verify_interval(TLABWasteTargetPercent, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2036 1, 100, "TLABWasteTargetPercent"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2037 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2038 status = status && verify_object_alignment(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2039 |
|
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2040 status = status && verify_min_value(ClassMetaspaceSize, 1*M, |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2041 "ClassMetaspaceSize"); |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2042 |
|
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2043 status = status && verify_interval(MarkStackSizeMax, |
|
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2044 1, (max_jint - 1), "MarkStackSizeMax"); |
|
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2045 |
|
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2046 #ifdef SPARC |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2047 if (UseConcMarkSweepGC || UseG1GC) { |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2048 // Issue a stern warning if the user has explicitly set |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2049 // UseMemSetInBOT (it is known to cause issues), but allow |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2050 // use for experimentation and debugging. |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2051 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2052 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2053 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2054 " on sun4v; please understand that you are using at your own risk!"); |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2055 } |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2056 } |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2057 #endif // SPARC |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2058 |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2059 if (PrintNMTStatistics) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2060 #if INCLUDE_NMT |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2061 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2062 #endif // INCLUDE_NMT |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2063 warning("PrintNMTStatistics is disabled, because native memory tracking is not enabled"); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2064 PrintNMTStatistics = false; |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2065 #if INCLUDE_NMT |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2066 } |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2067 #endif |
|
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2068 } |
|
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2069 |
| 0 | 2070 return status; |
| 2071 } | |
| 2072 | |
| 2073 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
| 2074 const char* option_type) { | |
| 2075 if (ignore) return false; | |
| 2076 | |
| 2077 const char* spacer = " "; | |
| 2078 if (option_type == NULL) { | |
| 2079 option_type = ++spacer; // Set both to the empty string. | |
| 2080 } | |
| 2081 | |
| 2082 if (os::obsolete_option(option)) { | |
| 2083 jio_fprintf(defaultStream::error_stream(), | |
| 2084 "Obsolete %s%soption: %s\n", option_type, spacer, | |
| 2085 option->optionString); | |
| 2086 return false; | |
| 2087 } else { | |
| 2088 jio_fprintf(defaultStream::error_stream(), | |
| 2089 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
| 2090 option->optionString); | |
| 2091 return true; | |
| 2092 } | |
| 2093 } | |
| 2094 | |
| 2095 static const char* user_assertion_options[] = { | |
| 2096 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
| 2097 }; | |
| 2098 | |
| 2099 static const char* system_assertion_options[] = { | |
| 2100 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
| 2101 }; | |
| 2102 | |
| 2103 // Return true if any of the strings in null-terminated array 'names' matches. | |
| 2104 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
| 2105 // the option must match exactly. | |
| 2106 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
| 2107 bool tail_allowed) { | |
| 2108 for (/* empty */; *names != NULL; ++names) { | |
| 2109 if (match_option(option, *names, tail)) { | |
| 2110 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
| 2111 return true; | |
| 2112 } | |
| 2113 } | |
| 2114 } | |
| 2115 return false; | |
| 2116 } | |
| 2117 | |
| 1284 | 2118 bool Arguments::parse_uintx(const char* value, |
| 2119 uintx* uintx_arg, | |
| 2120 uintx min_size) { | |
| 2121 | |
| 2122 // Check the sign first since atomull() parses only unsigned values. | |
| 2123 bool value_is_positive = !(*value == '-'); | |
| 2124 | |
| 2125 if (value_is_positive) { | |
| 2126 julong n; | |
| 2127 bool good_return = atomull(value, &n); | |
| 2128 if (good_return) { | |
| 2129 bool above_minimum = n >= min_size; | |
| 2130 bool value_is_too_large = n > max_uintx; | |
| 2131 | |
| 2132 if (above_minimum && !value_is_too_large) { | |
| 2133 *uintx_arg = n; | |
| 2134 return true; | |
| 2135 } | |
| 2136 } | |
| 2137 } | |
| 2138 return false; | |
| 2139 } | |
| 2140 | |
| 0 | 2141 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
|
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2142 julong* long_arg, |
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2143 julong min_size) { |
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2144 if (!atomull(s, long_arg)) return arg_unreadable; |
| 0 | 2145 return check_memory_size(*long_arg, min_size); |
| 2146 } | |
| 2147 | |
| 2148 // Parse JavaVMInitArgs structure | |
| 2149 | |
| 2150 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
| 2151 // For components of the system classpath. | |
| 2152 SysClassPath scp(Arguments::get_sysclasspath()); | |
| 2153 bool scp_assembly_required = false; | |
| 2154 | |
| 2155 // Save default settings for some mode flags | |
| 2156 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 2157 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 2158 Arguments::_ClipInlining = ClipInlining; | |
| 2159 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 2160 | |
|
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2161 // Setup flags for mixed which is the default |
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2162 set_mode_flags(_mixed); |
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2163 |
| 0 | 2164 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
| 2165 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
| 2166 if (result != JNI_OK) { | |
| 2167 return result; | |
| 2168 } | |
| 2169 | |
| 2170 // Parse JavaVMInitArgs structure passed in | |
| 2171 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
| 2172 if (result != JNI_OK) { | |
| 2173 return result; | |
| 2174 } | |
| 2175 | |
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2176 if (AggressiveOpts) { |
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2177 // Insert alt-rt.jar between user-specified bootclasspath |
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2178 // prefix and the default bootclasspath. os::set_boot_path() |
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2179 // uses meta_index_dir as the default bootclasspath directory. |
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2180 const char* altclasses_jar = "alt-rt.jar"; |
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2181 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
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2182 strlen(altclasses_jar); |
| 6197 | 2183 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
|
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2184 strcpy(altclasses_path, get_meta_index_dir()); |
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2185 strcat(altclasses_path, altclasses_jar); |
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2186 scp.add_suffix_to_prefix(altclasses_path); |
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2187 scp_assembly_required = true; |
| 6197 | 2188 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
|
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2189 } |
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2190 |
| 0 | 2191 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
| 2192 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
| 2193 if (result != JNI_OK) { | |
| 2194 return result; | |
| 2195 } | |
| 2196 | |
| 2197 // Do final processing now that all arguments have been parsed | |
| 2198 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
| 2199 if (result != JNI_OK) { | |
| 2200 return result; | |
| 2201 } | |
| 2202 | |
| 2203 return JNI_OK; | |
| 2204 } | |
| 2205 | |
| 2206 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
| 2207 SysClassPath* scp_p, | |
| 2208 bool* scp_assembly_required_p, | |
| 2209 FlagValueOrigin origin) { | |
| 2210 // Remaining part of option string | |
| 2211 const char* tail; | |
| 2212 | |
| 2213 // iterate over arguments | |
| 2214 for (int index = 0; index < args->nOptions; index++) { | |
| 2215 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
| 2216 | |
| 2217 const JavaVMOption* option = args->options + index; | |
| 2218 | |
| 2219 if (!match_option(option, "-Djava.class.path", &tail) && | |
| 2220 !match_option(option, "-Dsun.java.command", &tail) && | |
| 2221 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
| 2222 | |
| 2223 // add all jvm options to the jvm_args string. This string | |
| 2224 // is used later to set the java.vm.args PerfData string constant. | |
| 2225 // the -Djava.class.path and the -Dsun.java.command options are | |
| 2226 // omitted from jvm_args string as each have their own PerfData | |
| 2227 // string constant object. | |
| 2228 build_jvm_args(option->optionString); | |
| 2229 } | |
| 2230 | |
| 2231 // -verbose:[class/gc/jni] | |
| 2232 if (match_option(option, "-verbose", &tail)) { | |
| 2233 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
| 2234 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
| 2235 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2236 } else if (!strcmp(tail, ":gc")) { | |
| 2237 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2238 } else if (!strcmp(tail, ":jni")) { | |
| 2239 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
| 2240 } | |
| 2241 // -da / -ea / -disableassertions / -enableassertions | |
| 2242 // These accept an optional class/package name separated by a colon, e.g., | |
| 2243 // -da:java.lang.Thread. | |
| 2244 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
| 2245 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2246 if (*tail == '\0') { | |
| 2247 JavaAssertions::setUserClassDefault(enable); | |
| 2248 } else { | |
| 2249 assert(*tail == ':', "bogus match by match_option()"); | |
| 2250 JavaAssertions::addOption(tail + 1, enable); | |
| 2251 } | |
| 2252 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
| 2253 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
| 2254 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2255 JavaAssertions::setSystemClassDefault(enable); | |
| 2256 // -bootclasspath: | |
| 2257 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
| 2258 scp_p->reset_path(tail); | |
| 2259 *scp_assembly_required_p = true; | |
| 2260 // -bootclasspath/a: | |
| 2261 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
| 2262 scp_p->add_suffix(tail); | |
| 2263 *scp_assembly_required_p = true; | |
| 2264 // -bootclasspath/p: | |
| 2265 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
| 2266 scp_p->add_prefix(tail); | |
| 2267 *scp_assembly_required_p = true; | |
| 2268 // -Xrun | |
| 2269 } else if (match_option(option, "-Xrun", &tail)) { | |
|
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2270 if (tail != NULL) { |
| 0 | 2271 const char* pos = strchr(tail, ':'); |
| 2272 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2273 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2274 name[len] = '\0'; |
| 2275 | |
| 2276 char *options = NULL; | |
| 2277 if(pos != NULL) { | |
| 2278 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
| 6197 | 2279 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
| 0 | 2280 } |
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2281 #if !INCLUDE_JVMTI |
| 0 | 2282 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2283 warning("profiling and debugging agents are not supported in this VM"); |
| 0 | 2284 } else |
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2285 #endif // !INCLUDE_JVMTI |
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2286 add_init_library(name, options); |
| 0 | 2287 } |
| 2288 // -agentlib and -agentpath | |
| 2289 } else if (match_option(option, "-agentlib:", &tail) || | |
| 2290 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
| 2291 if(tail != NULL) { | |
| 2292 const char* pos = strchr(tail, '='); | |
| 2293 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2294 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2295 name[len] = '\0'; |
| 2296 | |
| 2297 char *options = NULL; | |
| 2298 if(pos != NULL) { | |
| 6197 | 2299 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
| 0 | 2300 } |
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2301 #if !INCLUDE_JVMTI |
| 0 | 2302 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2303 warning("profiling and debugging agents are not supported in this VM"); |
| 0 | 2304 } else |
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2305 #endif // !INCLUDE_JVMTI |
| 0 | 2306 add_init_agent(name, options, is_absolute_path); |
| 2307 | |
| 2308 } | |
| 2309 // -javaagent | |
| 2310 } else if (match_option(option, "-javaagent:", &tail)) { | |
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2311 #if !INCLUDE_JVMTI |
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2312 warning("Instrumentation agents are not supported in this VM"); |
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2313 #else |
| 0 | 2314 if(tail != NULL) { |
| 6197 | 2315 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
| 0 | 2316 add_init_agent("instrument", options, false); |
| 2317 } | |
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2318 #endif // !INCLUDE_JVMTI |
| 0 | 2319 // -Xnoclassgc |
| 2320 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
| 2321 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
| 2322 // -Xincgc: i-CMS | |
| 2323 } else if (match_option(option, "-Xincgc", &tail)) { | |
| 2324 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2325 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
| 2326 // -Xnoincgc: no i-CMS | |
| 2327 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
| 2328 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2329 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
| 2330 // -Xconcgc | |
| 2331 } else if (match_option(option, "-Xconcgc", &tail)) { | |
| 2332 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2333 // -Xnoconcgc | |
| 2334 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
| 2335 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2336 // -Xbatch | |
| 2337 } else if (match_option(option, "-Xbatch", &tail)) { | |
| 2338 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2339 // -Xmn for compatibility with other JVM vendors | |
| 2340 } else if (match_option(option, "-Xmn", &tail)) { | |
|
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2341 julong long_initial_eden_size = 0; |
| 0 | 2342 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
| 2343 if (errcode != arg_in_range) { | |
| 2344 jio_fprintf(defaultStream::error_stream(), | |
| 2345 "Invalid initial eden size: %s\n", option->optionString); | |
| 2346 describe_range_error(errcode); | |
| 2347 return JNI_EINVAL; | |
| 2348 } | |
| 1064 | 2349 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
| 2350 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
| 0 | 2351 // -Xms |
| 2352 } else if (match_option(option, "-Xms", &tail)) { | |
|
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2353 julong long_initial_heap_size = 0; |
| 0 | 2354 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
| 2355 if (errcode != arg_in_range) { | |
| 2356 jio_fprintf(defaultStream::error_stream(), | |
| 2357 "Invalid initial heap size: %s\n", option->optionString); | |
| 2358 describe_range_error(errcode); | |
| 2359 return JNI_EINVAL; | |
| 2360 } | |
| 1064 | 2361 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
| 0 | 2362 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2363 set_min_heap_size(InitialHeapSize); |
| 0 | 2364 // -Xmx |
| 2365 } else if (match_option(option, "-Xmx", &tail)) { | |
|
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2366 julong long_max_heap_size = 0; |
| 0 | 2367 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2368 if (errcode != arg_in_range) { | |
| 2369 jio_fprintf(defaultStream::error_stream(), | |
| 2370 "Invalid maximum heap size: %s\n", option->optionString); | |
| 2371 describe_range_error(errcode); | |
| 2372 return JNI_EINVAL; | |
| 2373 } | |
| 1064 | 2374 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
| 0 | 2375 // Xmaxf |
| 2376 } else if (match_option(option, "-Xmaxf", &tail)) { | |
| 2377 int maxf = (int)(atof(tail) * 100); | |
| 2378 if (maxf < 0 || maxf > 100) { | |
| 2379 jio_fprintf(defaultStream::error_stream(), | |
| 2380 "Bad max heap free percentage size: %s\n", | |
| 2381 option->optionString); | |
| 2382 return JNI_EINVAL; | |
| 2383 } else { | |
| 2384 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
| 2385 } | |
| 2386 // Xminf | |
| 2387 } else if (match_option(option, "-Xminf", &tail)) { | |
| 2388 int minf = (int)(atof(tail) * 100); | |
| 2389 if (minf < 0 || minf > 100) { | |
| 2390 jio_fprintf(defaultStream::error_stream(), | |
| 2391 "Bad min heap free percentage size: %s\n", | |
| 2392 option->optionString); | |
| 2393 return JNI_EINVAL; | |
| 2394 } else { | |
| 2395 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
| 2396 } | |
| 2397 // -Xss | |
| 2398 } else if (match_option(option, "-Xss", &tail)) { | |
|
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2399 julong long_ThreadStackSize = 0; |
| 0 | 2400 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
| 2401 if (errcode != arg_in_range) { | |
| 2402 jio_fprintf(defaultStream::error_stream(), | |
| 2403 "Invalid thread stack size: %s\n", option->optionString); | |
| 2404 describe_range_error(errcode); | |
| 2405 return JNI_EINVAL; | |
| 2406 } | |
| 2407 // Internally track ThreadStackSize in units of 1024 bytes. | |
| 2408 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
| 2409 round_to((int)long_ThreadStackSize, K) / K); | |
| 2410 // -Xoss | |
| 2411 } else if (match_option(option, "-Xoss", &tail)) { | |
| 2412 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
| 2413 // -Xmaxjitcodesize | |
|
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2414 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
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2415 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
|
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2416 julong long_ReservedCodeCacheSize = 0; |
| 0 | 2417 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
|
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2418 (size_t)InitialCodeCacheSize); |
| 0 | 2419 if (errcode != arg_in_range) { |
| 2420 jio_fprintf(defaultStream::error_stream(), | |
|
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2421 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
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2422 option->optionString, InitialCodeCacheSize/K); |
| 0 | 2423 describe_range_error(errcode); |
| 2424 return JNI_EINVAL; | |
| 2425 } | |
| 2426 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
| 2427 // -green | |
| 2428 } else if (match_option(option, "-green", &tail)) { | |
| 2429 jio_fprintf(defaultStream::error_stream(), | |
| 2430 "Green threads support not available\n"); | |
| 2431 return JNI_EINVAL; | |
| 2432 // -native | |
| 2433 } else if (match_option(option, "-native", &tail)) { | |
| 2434 // HotSpot always uses native threads, ignore silently for compatibility | |
| 2435 // -Xsqnopause | |
| 2436 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
| 2437 // EVM option, ignore silently for compatibility | |
| 2438 // -Xrs | |
| 2439 } else if (match_option(option, "-Xrs", &tail)) { | |
| 2440 // Classic/EVM option, new functionality | |
| 2441 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
| 2442 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
| 2443 // change default internal VM signals used - lower case for back compat | |
| 2444 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
| 2445 // -Xoptimize | |
| 2446 } else if (match_option(option, "-Xoptimize", &tail)) { | |
| 2447 // EVM option, ignore silently for compatibility | |
| 2448 // -Xprof | |
| 2449 } else if (match_option(option, "-Xprof", &tail)) { | |
|
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2450 #if INCLUDE_FPROF |
| 0 | 2451 _has_profile = true; |
|
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2452 #else // INCLUDE_FPROF |
| 0 | 2453 // do we have to exit? |
|
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2454 warning("Flat profiling is not supported in this VM."); |
|
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2455 #endif // INCLUDE_FPROF |
| 0 | 2456 // -Xaprof |
| 2457 } else if (match_option(option, "-Xaprof", &tail)) { | |
| 2458 _has_alloc_profile = true; | |
| 2459 // -Xconcurrentio | |
| 2460 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
| 2461 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
| 2462 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2463 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
| 2464 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2465 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
| 2466 | |
| 2467 // -Xinternalversion | |
| 2468 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
| 2469 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
| 2470 VM_Version::internal_vm_info_string()); | |
| 2471 vm_exit(0); | |
| 2472 #ifndef PRODUCT | |
| 2473 // -Xprintflags | |
| 2474 } else if (match_option(option, "-Xprintflags", &tail)) { | |
| 4773 | 2475 CommandLineFlags::printFlags(tty, false); |
| 0 | 2476 vm_exit(0); |
| 2477 #endif | |
| 2478 // -D | |
| 2479 } else if (match_option(option, "-D", &tail)) { | |
| 2480 if (!add_property(tail)) { | |
| 2481 return JNI_ENOMEM; | |
| 2482 } | |
| 2483 // Out of the box management support | |
| 2484 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
|
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2485 #if INCLUDE_MANAGEMENT |
| 0 | 2486 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
|
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2487 #else |
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2488 vm_exit_during_initialization( |
|
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2489 "-Dcom.sun.management is not supported in this VM.", NULL); |
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2490 #endif |
| 0 | 2491 } |
| 2492 // -Xint | |
| 2493 } else if (match_option(option, "-Xint", &tail)) { | |
| 2494 set_mode_flags(_int); | |
| 2495 // -Xmixed | |
| 2496 } else if (match_option(option, "-Xmixed", &tail)) { | |
| 2497 set_mode_flags(_mixed); | |
| 2498 // -Xcomp | |
| 2499 } else if (match_option(option, "-Xcomp", &tail)) { | |
| 2500 // for testing the compiler; turn off all flags that inhibit compilation | |
| 2501 set_mode_flags(_comp); | |
| 2502 | |
| 2503 // -Xshare:dump | |
| 2504 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
| 7951 | 2505 #if !INCLUDE_CDS |
|
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2506 vm_exit_during_initialization( |
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|
2507 "Dumping a shared archive is not supported in this VM.", NULL); |
| 0 | 2508 #else |
| 2509 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2510 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2511 #endif | |
| 2512 // -Xshare:on | |
| 2513 } else if (match_option(option, "-Xshare:on", &tail)) { | |
| 2514 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2515 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
| 2516 // -Xshare:auto | |
| 2517 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
| 2518 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2519 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2520 // -Xshare:off | |
| 2521 } else if (match_option(option, "-Xshare:off", &tail)) { | |
| 2522 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
| 2523 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2524 | |
| 2525 // -Xverify | |
| 2526 } else if (match_option(option, "-Xverify", &tail)) { | |
| 2527 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
| 2528 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
| 2529 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2530 } else if (strcmp(tail, ":remote") == 0) { | |
| 2531 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2532 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2533 } else if (strcmp(tail, ":none") == 0) { | |
| 2534 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2535 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
| 2536 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
| 2537 return JNI_EINVAL; | |
| 2538 } | |
| 2539 // -Xdebug | |
| 2540 } else if (match_option(option, "-Xdebug", &tail)) { | |
| 2541 // note this flag has been used, then ignore | |
| 2542 set_xdebug_mode(true); | |
| 2543 // -Xnoagent | |
| 2544 } else if (match_option(option, "-Xnoagent", &tail)) { | |
| 2545 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
| 2546 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
| 2547 // Bind user level threads to kernel threads (Solaris only) | |
| 2548 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
| 2549 } else if (match_option(option, "-Xloggc:", &tail)) { | |
| 2550 // Redirect GC output to the file. -Xloggc:<filename> | |
| 2551 // ostream_init_log(), when called will use this filename | |
| 2552 // to initialize a fileStream. | |
| 2553 _gc_log_filename = strdup(tail); | |
| 2554 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2555 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
| 2556 | |
| 2557 // JNI hooks | |
| 2558 } else if (match_option(option, "-Xcheck", &tail)) { | |
| 2559 if (!strcmp(tail, ":jni")) { | |
|
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2560 #if !INCLUDE_JNI_CHECK |
|
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2561 warning("JNI CHECKING is not supported in this VM"); |
|
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2562 #else |
| 0 | 2563 CheckJNICalls = true; |
|
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2564 #endif // INCLUDE_JNI_CHECK |
| 0 | 2565 } else if (is_bad_option(option, args->ignoreUnrecognized, |
| 2566 "check")) { | |
| 2567 return JNI_EINVAL; | |
| 2568 } | |
| 2569 } else if (match_option(option, "vfprintf", &tail)) { | |
| 2570 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
| 2571 } else if (match_option(option, "exit", &tail)) { | |
| 2572 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
| 2573 } else if (match_option(option, "abort", &tail)) { | |
| 2574 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
| 2575 // -XX:+AggressiveHeap | |
| 2576 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
| 2577 | |
| 2578 // This option inspects the machine and attempts to set various | |
| 2579 // parameters to be optimal for long-running, memory allocation | |
| 2580 // intensive jobs. It is intended for machines with large | |
| 2581 // amounts of cpu and memory. | |
| 2582 | |
| 2583 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
| 2584 // VM, but we may not be able to represent the total physical memory | |
| 2585 // available (like having 8gb of memory on a box but using a 32bit VM). | |
| 2586 // Thus, we need to make sure we're using a julong for intermediate | |
| 2587 // calculations. | |
| 2588 julong initHeapSize; | |
| 2589 julong total_memory = os::physical_memory(); | |
| 2590 | |
| 2591 if (total_memory < (julong)256*M) { | |
| 2592 jio_fprintf(defaultStream::error_stream(), | |
| 2593 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
| 2594 vm_exit(1); | |
| 2595 } | |
| 2596 | |
| 2597 // The heap size is half of available memory, or (at most) | |
| 2598 // all of possible memory less 160mb (leaving room for the OS | |
| 2599 // when using ISM). This is the maximum; because adaptive sizing | |
| 2600 // is turned on below, the actual space used may be smaller. | |
| 2601 | |
| 2602 initHeapSize = MIN2(total_memory / (julong)2, | |
| 2603 total_memory - (julong)160*M); | |
| 2604 | |
| 2605 // Make sure that if we have a lot of memory we cap the 32 bit | |
| 2606 // process space. The 64bit VM version of this function is a nop. | |
| 2607 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
| 2608 | |
| 2609 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
| 2610 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
| 1064 | 2611 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
| 0 | 2612 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2613 set_min_heap_size(initHeapSize); |
| 0 | 2614 } |
| 2615 if (FLAG_IS_DEFAULT(NewSize)) { | |
| 2616 // Make the young generation 3/8ths of the total heap. | |
| 2617 FLAG_SET_CMDLINE(uintx, NewSize, | |
| 2618 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
| 2619 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
| 2620 } | |
| 2621 | |
|
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2622 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
| 0 | 2623 FLAG_SET_DEFAULT(UseLargePages, true); |
|
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2624 #endif |
| 0 | 2625 |
| 2626 // Increase some data structure sizes for efficiency | |
| 2627 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
| 2628 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2629 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
| 2630 | |
| 2631 // See the OldPLABSize comment below, but replace 'after promotion' | |
| 2632 // with 'after copying'. YoungPLABSize is the size of the survivor | |
| 2633 // space per-gc-thread buffers. The default is 4kw. | |
| 2634 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
| 2635 | |
| 2636 // OldPLABSize is the size of the buffers in the old gen that | |
| 2637 // UseParallelGC uses to promote live data that doesn't fit in the | |
| 2638 // survivor spaces. At any given time, there's one for each gc thread. | |
| 2639 // The default size is 1kw. These buffers are rarely used, since the | |
| 2640 // survivor spaces are usually big enough. For specjbb, however, there | |
| 2641 // are occasions when there's lots of live data in the young gen | |
| 2642 // and we end up promoting some of it. We don't have a definite | |
| 2643 // explanation for why bumping OldPLABSize helps, but the theory | |
| 2644 // is that a bigger PLAB results in retaining something like the | |
| 2645 // original allocation order after promotion, which improves mutator | |
| 2646 // locality. A minor effect may be that larger PLABs reduce the | |
| 2647 // number of PLAB allocation events during gc. The value of 8kw | |
| 2648 // was arrived at by experimenting with specjbb. | |
| 2649 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
| 2650 | |
| 2651 // Enable parallel GC and adaptive generation sizing | |
| 2652 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
|
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2653 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2654 Abstract_VM_Version::parallel_worker_threads()); |
| 0 | 2655 |
| 2656 // Encourage steady state memory management | |
| 2657 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
| 2658 | |
| 2659 // This appears to improve mutator locality | |
| 2660 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2661 | |
| 2662 // Get around early Solaris scheduling bug | |
| 2663 // (affinity vs other jobs on system) | |
| 2664 // but disallow DR and offlining (5008695). | |
| 2665 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
| 2666 | |
| 2667 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
| 2668 // The last option must always win. | |
| 2669 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
| 2670 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
| 2671 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
| 2672 // The last option must always win. | |
| 2673 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
| 2674 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
| 2675 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
| 2676 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
| 2677 jio_fprintf(defaultStream::error_stream(), | |
| 2678 "Please use CMSClassUnloadingEnabled in place of " | |
| 2679 "CMSPermGenSweepingEnabled in the future\n"); | |
| 2680 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
| 2681 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
| 2682 jio_fprintf(defaultStream::error_stream(), | |
| 2683 "Please use -XX:+UseGCOverheadLimit in place of " | |
| 2684 "-XX:+UseGCTimeLimit in the future\n"); | |
| 2685 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
| 2686 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
| 2687 jio_fprintf(defaultStream::error_stream(), | |
| 2688 "Please use -XX:-UseGCOverheadLimit in place of " | |
| 2689 "-XX:-UseGCTimeLimit in the future\n"); | |
| 2690 // The TLE options are for compatibility with 1.3 and will be | |
| 2691 // removed without notice in a future release. These options | |
| 2692 // are not to be documented. | |
| 2693 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
| 2694 // No longer used. | |
| 2695 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
| 2696 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
| 2697 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
| 2698 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2699 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
| 2700 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
| 2701 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
| 2702 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
| 2703 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
| 2704 // No longer used. | |
| 2705 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
|
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2706 julong long_tlab_size = 0; |
| 0 | 2707 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
| 2708 if (errcode != arg_in_range) { | |
| 2709 jio_fprintf(defaultStream::error_stream(), | |
| 2710 "Invalid TLAB size: %s\n", option->optionString); | |
| 2711 describe_range_error(errcode); | |
| 2712 return JNI_EINVAL; | |
| 2713 } | |
| 2714 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
| 2715 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
| 2716 // No longer used. | |
| 2717 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
| 2718 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
| 2719 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
| 2720 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2721 SOLARIS_ONLY( | |
| 2722 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
| 2723 warning("-XX:+UsePermISM is obsolete."); | |
| 2724 FLAG_SET_CMDLINE(bool, UseISM, true); | |
| 2725 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
| 2726 FLAG_SET_CMDLINE(bool, UseISM, false); | |
| 2727 ) | |
| 2728 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
| 2729 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
| 2730 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
| 2731 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
| 2732 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
| 2733 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
| 2734 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
| 4006 | 2735 #if defined(DTRACE_ENABLED) |
| 0 | 2736 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
| 2737 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
| 2738 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
| 2739 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
| 4006 | 2740 #else // defined(DTRACE_ENABLED) |
| 0 | 2741 jio_fprintf(defaultStream::error_stream(), |
| 4006 | 2742 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
| 0 | 2743 return JNI_EINVAL; |
| 4006 | 2744 #endif // defined(DTRACE_ENABLED) |
| 0 | 2745 #ifdef ASSERT |
|
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2746 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
| 0 | 2747 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
| 2748 // disable scavenge before parallel mark-compact | |
| 2749 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2750 #endif | |
|
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2751 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
| 0 | 2752 julong cms_blocks_to_claim = (julong)atol(tail); |
| 2753 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
| 2754 jio_fprintf(defaultStream::error_stream(), | |
|
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2755 "Please use -XX:OldPLABSize in place of " |
|
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|
2756 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
|
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|
2757 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
|
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|
2758 julong cms_blocks_to_claim = (julong)atol(tail); |
|
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|
2759 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
|
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changeset
|
2760 jio_fprintf(defaultStream::error_stream(), |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2761 "Please use -XX:OldPLABSize in place of " |
| 0 | 2762 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2763 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2764 julong old_plab_size = 0; |
| 0 | 2765 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
| 2766 if (errcode != arg_in_range) { | |
| 2767 jio_fprintf(defaultStream::error_stream(), | |
| 2768 "Invalid old PLAB size: %s\n", option->optionString); | |
| 2769 describe_range_error(errcode); | |
| 2770 return JNI_EINVAL; | |
| 2771 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2772 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
| 0 | 2773 jio_fprintf(defaultStream::error_stream(), |
| 2774 "Please use -XX:OldPLABSize in place of " | |
| 2775 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2776 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2777 julong young_plab_size = 0; |
| 0 | 2778 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
| 2779 if (errcode != arg_in_range) { | |
| 2780 jio_fprintf(defaultStream::error_stream(), | |
| 2781 "Invalid young PLAB size: %s\n", option->optionString); | |
| 2782 describe_range_error(errcode); | |
| 2783 return JNI_EINVAL; | |
| 2784 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2785 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
| 0 | 2786 jio_fprintf(defaultStream::error_stream(), |
| 2787 "Please use -XX:YoungPLABSize in place of " | |
| 2788 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
| 1284 | 2789 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
| 2790 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
| 2791 julong stack_size = 0; | |
| 2792 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
| 2793 if (errcode != arg_in_range) { | |
| 2794 jio_fprintf(defaultStream::error_stream(), | |
| 2795 "Invalid mark stack size: %s\n", option->optionString); | |
| 2796 describe_range_error(errcode); | |
| 2797 return JNI_EINVAL; | |
| 2798 } | |
| 2799 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
| 2800 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
| 2801 julong max_stack_size = 0; | |
| 2802 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
| 2803 if (errcode != arg_in_range) { | |
| 2804 jio_fprintf(defaultStream::error_stream(), | |
| 2805 "Invalid maximum mark stack size: %s\n", | |
| 2806 option->optionString); | |
| 2807 describe_range_error(errcode); | |
| 2808 return JNI_EINVAL; | |
| 2809 } | |
| 2810 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
| 2811 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
| 2812 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
| 2813 uintx conc_threads = 0; | |
| 2814 if (!parse_uintx(tail, &conc_threads, 1)) { | |
| 2815 jio_fprintf(defaultStream::error_stream(), | |
| 2816 "Invalid concurrent threads: %s\n", option->optionString); | |
| 2817 return JNI_EINVAL; | |
| 2818 } | |
| 2819 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
|
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2820 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2821 julong max_direct_memory_size = 0; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2822 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2823 if (errcode != arg_in_range) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2824 jio_fprintf(defaultStream::error_stream(), |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2825 "Invalid maximum direct memory size: %s\n", |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2826 option->optionString); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2827 describe_range_error(errcode); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2828 return JNI_EINVAL; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2829 } |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2830 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
|
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2831 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2832 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2833 // away and will cause VM initialization failures! |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2834 warning("-XX:+UseVMInterruptibleIO is obsolete and will be removed in a future release."); |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2835 FLAG_SET_CMDLINE(bool, UseVMInterruptibleIO, true); |
|
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2836 #if !INCLUDE_MANAGEMENT |
|
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2837 } else if (match_option(option, "-XX:+ManagementServer", &tail)) { |
|
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2838 vm_exit_during_initialization( |
|
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2839 "ManagementServer is not supported in this VM.", NULL); |
|
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2840 #endif // INCLUDE_MANAGEMENT |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2841 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 0 | 2842 // Skip -XX:Flags= since that case has already been handled |
| 2843 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
| 2844 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
| 2845 return JNI_EINVAL; | |
| 2846 } | |
| 2847 } | |
| 2848 // Unknown option | |
| 2849 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
| 2850 return JNI_ERR; | |
| 2851 } | |
| 2852 } | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2853 |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2854 // Change the default value for flags which have different default values |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2855 // when working with older JDKs. |
|
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2856 #ifdef LINUX |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2857 if (JDK_Version::current().compare_major(6) <= 0 && |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2858 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2859 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2860 } |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2861 #endif // LINUX |
| 0 | 2862 return JNI_OK; |
| 2863 } | |
| 2864 | |
| 2865 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
| 2866 // This must be done after all -D arguments have been processed. | |
| 2867 scp_p->expand_endorsed(); | |
| 2868 | |
| 2869 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
| 2870 // Assemble the bootclasspath elements into the final path. | |
| 2871 Arguments::set_sysclasspath(scp_p->combined_path()); | |
| 2872 } | |
| 2873 | |
| 2874 // This must be done after all arguments have been processed. | |
| 2875 // java_compiler() true means set to "NONE" or empty. | |
| 2876 if (java_compiler() && !xdebug_mode()) { | |
| 2877 // For backwards compatibility, we switch to interpreted mode if | |
| 2878 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
| 2879 // not specified. | |
| 2880 set_mode_flags(_int); | |
| 2881 } | |
| 2882 if (CompileThreshold == 0) { | |
| 2883 set_mode_flags(_int); | |
| 2884 } | |
| 2885 | |
| 2886 #ifndef COMPILER2 | |
| 2887 // Don't degrade server performance for footprint | |
| 2888 if (FLAG_IS_DEFAULT(UseLargePages) && | |
| 2889 MaxHeapSize < LargePageHeapSizeThreshold) { | |
| 2890 // No need for large granularity pages w/small heaps. | |
| 2891 // Note that large pages are enabled/disabled for both the | |
| 2892 // Java heap and the code cache. | |
| 2893 FLAG_SET_DEFAULT(UseLargePages, false); | |
| 2894 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
| 2895 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
| 2896 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2897 |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2898 // Tiered compilation is undefined with C1. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2899 TieredCompilation = false; |
| 0 | 2900 #else |
| 2901 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
| 2902 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
| 2903 } | |
| 2904 #endif | |
| 2905 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2906 // If we are running in a headless jre, force java.awt.headless property |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2907 // to be true unless the property has already been set. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2908 // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2909 if (os::is_headless_jre()) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2910 const char* headless = Arguments::get_property("java.awt.headless"); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2911 if (headless == NULL) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2912 char envbuffer[128]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2913 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2914 if (!add_property("java.awt.headless=true")) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2915 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2916 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2917 } else { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2918 char buffer[256]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2919 strcpy(buffer, "java.awt.headless="); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2920 strcat(buffer, envbuffer); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2921 if (!add_property(buffer)) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2922 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2923 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2924 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2925 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2926 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2927 |
| 0 | 2928 if (!check_vm_args_consistency()) { |
| 2929 return JNI_ERR; | |
| 2930 } | |
| 2931 | |
| 2932 return JNI_OK; | |
| 2933 } | |
| 2934 | |
| 2935 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2936 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
| 2937 scp_assembly_required_p); | |
| 2938 } | |
| 2939 | |
| 2940 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2941 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
| 2942 scp_assembly_required_p); | |
| 2943 } | |
| 2944 | |
| 2945 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2946 const int N_MAX_OPTIONS = 64; | |
| 2947 const int OPTION_BUFFER_SIZE = 1024; | |
| 2948 char buffer[OPTION_BUFFER_SIZE]; | |
| 2949 | |
| 2950 // The variable will be ignored if it exceeds the length of the buffer. | |
| 2951 // Don't check this variable if user has special privileges | |
| 2952 // (e.g. unix su command). | |
| 2953 if (os::getenv(name, buffer, sizeof(buffer)) && | |
| 2954 !os::have_special_privileges()) { | |
| 2955 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
| 2956 jio_fprintf(defaultStream::error_stream(), | |
| 2957 "Picked up %s: %s\n", name, buffer); | |
| 2958 char* rd = buffer; // pointer to the input string (rd) | |
| 2959 int i; | |
| 2960 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
| 2961 while (isspace(*rd)) rd++; // skip whitespace | |
| 2962 if (*rd == 0) break; // we re done when the input string is read completely | |
| 2963 | |
| 2964 // The output, option string, overwrites the input string. | |
| 2965 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
| 2966 // input string (rd). | |
| 2967 char* wrt = rd; | |
| 2968 | |
| 2969 options[i++].optionString = wrt; // Fill in option | |
| 2970 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
| 2971 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
| 2972 int quote = *rd; // matching quote to look for | |
| 2973 rd++; // don't copy open quote | |
| 2974 while (*rd != quote) { // include everything (even spaces) up until quote | |
| 2975 if (*rd == 0) { // string termination means unmatched string | |
| 2976 jio_fprintf(defaultStream::error_stream(), | |
| 2977 "Unmatched quote in %s\n", name); | |
| 2978 return JNI_ERR; | |
| 2979 } | |
| 2980 *wrt++ = *rd++; // copy to option string | |
| 2981 } | |
| 2982 rd++; // don't copy close quote | |
| 2983 } else { | |
| 2984 *wrt++ = *rd++; // copy to option string | |
| 2985 } | |
| 2986 } | |
| 2987 // Need to check if we're done before writing a NULL, | |
| 2988 // because the write could be to the byte that rd is pointing to. | |
| 2989 if (*rd++ == 0) { | |
| 2990 *wrt = 0; | |
| 2991 break; | |
| 2992 } | |
| 2993 *wrt = 0; // Zero terminate option | |
| 2994 } | |
| 2995 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
| 2996 JavaVMInitArgs vm_args; | |
| 2997 vm_args.version = JNI_VERSION_1_2; | |
| 2998 vm_args.options = options; | |
| 2999 vm_args.nOptions = i; | |
| 564 | 3000 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 0 | 3001 |
| 3002 if (PrintVMOptions) { | |
| 3003 const char* tail; | |
| 3004 for (int i = 0; i < vm_args.nOptions; i++) { | |
| 3005 const JavaVMOption *option = vm_args.options + i; | |
| 3006 if (match_option(option, "-XX:", &tail)) { | |
| 3007 logOption(tail); | |
| 3008 } | |
| 3009 } | |
| 3010 } | |
| 3011 | |
| 3012 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
| 3013 } | |
| 3014 return JNI_OK; | |
| 3015 } | |
| 3016 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3017 void Arguments::set_shared_spaces_flags() { |
| 2378 | 3018 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
| 3019 const bool might_share = must_share || UseSharedSpaces; | |
| 3020 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3021 // CompressedOops cannot be used with CDS. The offsets of oopmaps and |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3022 // static fields are incorrect in the archive. With some more clever |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3023 // initialization, this restriction can probably be lifted. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3024 // ??? UseLargePages might be okay now |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3025 const bool cannot_share = UseCompressedOops || |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3026 (UseLargePages && FLAG_IS_CMDLINE(UseLargePages)); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3027 if (cannot_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3028 if (must_share) { |
|
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
3029 warning("disabling large pages %s" |
| 2378 | 3030 "because of %s", "" LP64_ONLY("and compressed oops "), |
| 3031 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
| 3032 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
| 3033 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3034 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false)); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3035 } else { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3036 // Prefer compressed oops and large pages to class data sharing |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3037 if (UseSharedSpaces && Verbose) { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3038 warning("turning off use of shared archive because of large pages%s", |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3039 "" LP64_ONLY(" and/or compressed oops")); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3040 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3041 no_shared_spaces(); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3042 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3043 } else if (UseLargePages && might_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3044 // Disable large pages to allow shared spaces. This is sub-optimal, since |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3045 // there may not even be a shared archive to use. |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3046 FLAG_SET_DEFAULT(UseLargePages, false); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3047 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3048 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3049 if (DumpSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3050 if (RequireSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3051 warning("cannot dump shared archive while using shared archive"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3052 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3053 UseSharedSpaces = false; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3054 } |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3055 } |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3056 |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3057 // Disable options not supported in this release, with a warning if they |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3058 // were explicitly requested on the command-line |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3059 #define UNSUPPORTED_OPTION(opt, description) \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3060 do { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3061 if (opt) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3062 if (FLAG_IS_CMDLINE(opt)) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3063 warning(description " is disabled in this release."); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3064 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3065 FLAG_SET_DEFAULT(opt, false); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3066 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3067 } while(0) |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3068 |
|
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3069 |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3070 #define UNSUPPORTED_GC_OPTION(gc) \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3071 do { \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3072 if (gc) { \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3073 if (FLAG_IS_CMDLINE(gc)) { \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3074 warning(#gc " is not supported in this VM. Using Serial GC."); \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3075 } \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3076 FLAG_SET_DEFAULT(gc, false); \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3077 } \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3078 } while(0) |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3079 |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3080 static void force_serial_gc() { |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3081 FLAG_SET_DEFAULT(UseSerialGC, true); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3082 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3083 UNSUPPORTED_GC_OPTION(UseG1GC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3084 UNSUPPORTED_GC_OPTION(UseParallelGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3085 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3086 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3087 UNSUPPORTED_GC_OPTION(UseParNewGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3088 } |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3089 |
| 0 | 3090 // Parse entry point called from JNI_CreateJavaVM |
| 3091 | |
| 3092 jint Arguments::parse(const JavaVMInitArgs* args) { | |
| 3093 | |
| 3094 // Sharing support | |
| 3095 // Construct the path to the archive | |
| 3096 char jvm_path[JVM_MAXPATHLEN]; | |
| 3097 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
| 3098 char *end = strrchr(jvm_path, *os::file_separator()); | |
| 3099 if (end != NULL) *end = '\0'; | |
| 3100 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
| 6197 | 3101 strlen(os::file_separator()) + 20, mtInternal); |
| 0 | 3102 if (shared_archive_path == NULL) return JNI_ENOMEM; |
| 3103 strcpy(shared_archive_path, jvm_path); | |
| 3104 strcat(shared_archive_path, os::file_separator()); | |
| 3105 strcat(shared_archive_path, "classes"); | |
| 3106 strcat(shared_archive_path, ".jsa"); | |
| 3107 SharedArchivePath = shared_archive_path; | |
| 3108 | |
| 3109 // Remaining part of option string | |
| 3110 const char* tail; | |
| 3111 | |
| 3112 // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3113 const char* hotspotrc = ".hotspotrc"; |
| 0 | 3114 bool settings_file_specified = false; |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3115 bool needs_hotspotrc_warning = false; |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3116 |
| 564 | 3117 const char* flags_file; |
| 0 | 3118 int index; |
| 3119 for (index = 0; index < args->nOptions; index++) { | |
| 3120 const JavaVMOption *option = args->options + index; | |
| 3121 if (match_option(option, "-XX:Flags=", &tail)) { | |
| 564 | 3122 flags_file = tail; |
| 0 | 3123 settings_file_specified = true; |
| 3124 } | |
| 3125 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
| 3126 PrintVMOptions = true; | |
| 3127 } | |
|
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3128 if (match_option(option, "-XX:-PrintVMOptions", &tail)) { |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3129 PrintVMOptions = false; |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3130 } |
| 564 | 3131 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
| 3132 IgnoreUnrecognizedVMOptions = true; | |
| 3133 } | |
| 3134 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
| 3135 IgnoreUnrecognizedVMOptions = false; | |
| 3136 } | |
| 1150 | 3137 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
| 4773 | 3138 CommandLineFlags::printFlags(tty, false); |
| 1150 | 3139 vm_exit(0); |
| 3140 } | |
| 6197 | 3141 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3142 #if INCLUDE_NMT |
| 6197 | 3143 MemTracker::init_tracking_options(tail); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3144 #else |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3145 warning("Native Memory Tracking is not supported in this VM"); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3146 #endif |
| 6197 | 3147 } |
| 3148 | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3149 |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3150 #ifndef PRODUCT |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3151 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
| 4773 | 3152 CommandLineFlags::printFlags(tty, true); |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3153 vm_exit(0); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3154 } |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3155 #endif |
| 564 | 3156 } |
| 3157 | |
| 3158 if (IgnoreUnrecognizedVMOptions) { | |
| 3159 // uncast const to modify the flag args->ignoreUnrecognized | |
| 3160 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
| 3161 } | |
| 3162 | |
| 3163 // Parse specified settings file | |
| 3164 if (settings_file_specified) { | |
| 3165 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
| 3166 return JNI_EINVAL; | |
| 3167 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3168 } else { |
|
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3169 #ifdef ASSERT |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3170 // Parse default .hotspotrc settings file |
| 0 | 3171 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
| 3172 return JNI_EINVAL; | |
| 3173 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3174 #else |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3175 struct stat buf; |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3176 if (os::stat(hotspotrc, &buf) == 0) { |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3177 needs_hotspotrc_warning = true; |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3178 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3179 #endif |
| 0 | 3180 } |
| 3181 | |
| 3182 if (PrintVMOptions) { | |
| 3183 for (index = 0; index < args->nOptions; index++) { | |
| 3184 const JavaVMOption *option = args->options + index; | |
| 3185 if (match_option(option, "-XX:", &tail)) { | |
| 3186 logOption(tail); | |
| 3187 } | |
| 3188 } | |
| 3189 } | |
| 3190 | |
| 3191 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
| 3192 jint result = parse_vm_init_args(args); | |
| 3193 if (result != JNI_OK) { | |
| 3194 return result; | |
| 3195 } | |
| 3196 | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3197 // Delay warning until here so that we've had a chance to process |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3198 // the -XX:-PrintWarnings flag |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3199 if (needs_hotspotrc_warning) { |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3200 warning("%s file is present but has been ignored. " |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3201 "Run with -XX:Flags=%s to load the file.", |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3202 hotspotrc, hotspotrc); |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3203 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3204 |
|
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3205 #ifdef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
|
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3206 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
|
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3207 #endif |
|
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3208 |
|
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3209 #if INCLUDE_ALL_GCS |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3210 #if (defined JAVASE_EMBEDDED || defined ARM) |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3211 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3212 #endif |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3213 #endif |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3214 |
| 0 | 3215 #ifndef PRODUCT |
| 3216 if (TraceBytecodesAt != 0) { | |
| 3217 TraceBytecodes = true; | |
| 3218 } | |
| 3219 if (CountCompiledCalls) { | |
| 3220 if (UseCounterDecay) { | |
| 3221 warning("UseCounterDecay disabled because CountCalls is set"); | |
| 3222 UseCounterDecay = false; | |
| 3223 } | |
| 3224 } | |
| 3225 #endif // PRODUCT | |
| 3226 | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3227 // JSR 292 is not supported before 1.7 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3228 if (!JDK_Version::is_gte_jdk17x_version()) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3229 if (EnableInvokeDynamic) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3230 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3231 warning("JSR 292 is not supported before 1.7. Disabling support."); |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3232 } |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3233 EnableInvokeDynamic = false; |
| 710 | 3234 } |
| 3235 } | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3236 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3237 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3238 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3239 warning("forcing ScavengeRootsInCode non-zero because EnableInvokeDynamic is true"); |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3240 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3241 ScavengeRootsInCode = 1; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3242 } |
| 710 | 3243 |
| 0 | 3244 if (PrintGCDetails) { |
| 3245 // Turn on -verbose:gc options as well | |
| 3246 PrintGC = true; | |
| 3247 } | |
| 3248 | |
|
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3249 if (!JDK_Version::is_gte_jdk18x_version()) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3250 // To avoid changing the log format for 7 updates this flag is only |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3251 // true by default in JDK8 and above. |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3252 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3253 FLAG_SET_DEFAULT(PrintGCCause, false); |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3254 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3255 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3256 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3257 // Set object alignment values. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3258 set_object_alignment(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3259 |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3260 #if !INCLUDE_ALL_GCS |
| 1064 | 3261 force_serial_gc(); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3262 #endif // INCLUDE_ALL_GCS |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3263 #if !INCLUDE_CDS |
| 0 | 3264 no_shared_spaces(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3265 #endif // INCLUDE_CDS |
| 0 | 3266 |
| 3267 // Set flags based on ergonomics. | |
| 3268 set_ergonomics_flags(); | |
| 3269 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3270 set_shared_spaces_flags(); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3271 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3272 // Check the GC selections again. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3273 if (!check_gc_consistency()) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3274 return JNI_EINVAL; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3275 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3276 |
| 1783 | 3277 if (TieredCompilation) { |
| 3278 set_tiered_flags(); | |
| 3279 } else { | |
| 3280 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
| 3281 if (CompilationPolicyChoice >= 2) { | |
| 3282 vm_exit_during_initialization( | |
| 3283 "Incompatible compilation policy selected", NULL); | |
| 3284 } | |
| 3285 } | |
| 3286 | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3287 // Set heap size based on available physical memory |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3288 set_heap_size(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3289 |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3290 #if INCLUDE_ALL_GCS |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3291 // Set per-collector flags |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3292 if (UseParallelGC || UseParallelOldGC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3293 set_parallel_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3294 } else if (UseConcMarkSweepGC) { // should be done before ParNew check below |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3295 set_cms_and_parnew_gc_flags(); |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3296 } else if (UseParNewGC) { // skipped if CMS is set above |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3297 set_parnew_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3298 } else if (UseG1GC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3299 set_g1_gc_flags(); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3300 } |
|
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3301 check_deprecated_gcs(); |
| 8734 | 3302 check_deprecated_gc_flags(); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3303 #else // INCLUDE_ALL_GCS |
| 0 | 3304 assert(verify_serial_gc_flags(), "SerialGC unset"); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3305 #endif // INCLUDE_ALL_GCS |
| 0 | 3306 |
| 3307 // Set bytecode rewriting flags | |
| 3308 set_bytecode_flags(); | |
| 3309 | |
| 3310 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
| 3311 set_aggressive_opts_flags(); | |
| 3312 | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3313 // Turn off biased locking for locking debug mode flags, |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3314 // which are subtlely different from each other but neither works with |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3315 // biased locking. |
| 2331 | 3316 if (UseHeavyMonitors |
| 3317 #ifdef COMPILER1 | |
| 3318 || !UseFastLocking | |
| 3319 #endif // COMPILER1 | |
| 3320 ) { | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3321 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3322 // flag set to true on command line; warn the user that they |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3323 // can't enable biased locking here |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3324 warning("Biased Locking is not supported with locking debug flags" |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3325 "; ignoring UseBiasedLocking flag." ); |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3326 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3327 UseBiasedLocking = false; |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3328 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3329 |
| 0 | 3330 #ifdef CC_INTERP |
| 1131 | 3331 // Clear flags not supported by the C++ interpreter |
| 3332 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
| 0 | 3333 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
| 1131 | 3334 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3335 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
| 1131 | 3336 #endif // CC_INTERP |
| 3337 | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3338 #ifdef COMPILER2 |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3339 if (!UseBiasedLocking || EmitSync != 0) { |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3340 UseOptoBiasInlining = false; |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3341 } |
| 4777 | 3342 if (!EliminateLocks) { |
| 3343 EliminateNestedLocks = false; | |
| 3344 } | |
| 7473 | 3345 if (!Inline) { |
| 3346 IncrementalInline = false; | |
| 3347 } | |
| 3348 #ifndef PRODUCT | |
| 3349 if (!IncrementalInline) { | |
| 3350 AlwaysIncrementalInline = false; | |
| 3351 } | |
| 3352 #endif | |
| 3353 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
| 3354 // incremental inlining: bump MaxNodeLimit | |
| 3355 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
| 3356 } | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3357 #endif |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3358 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3359 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3360 warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3361 DebugNonSafepoints = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3362 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3363 |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3364 #ifndef PRODUCT |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3365 if (CompileTheWorld) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3366 // Force NmethodSweeper to sweep whole CodeCache each time. |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3367 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3368 NmethodSweepFraction = 1; |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3369 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3370 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3371 #endif |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3372 |
| 0 | 3373 if (PrintCommandLineFlags) { |
| 4773 | 3374 CommandLineFlags::printSetFlags(tty); |
| 0 | 3375 } |
| 3376 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3377 // Apply CPU specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3378 if (UseBiasedLocking) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3379 if (!VM_Version::use_biased_locking() && |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3380 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3381 UseBiasedLocking = false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3382 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3383 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3384 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3385 // set PauseAtExit if the gamma launcher was used and a debugger is attached |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3386 // but only if not already set on the commandline |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3387 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
|
da091bb67459
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3388 bool set = false; |
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3389 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
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3390 if (!set) { |
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3391 FLAG_SET_DEFAULT(PauseAtExit, true); |
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3392 } |
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3393 } |
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3394 |
| 0 | 3395 return JNI_OK; |
| 3396 } | |
| 3397 | |
|
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3398 jint Arguments::adjust_after_os() { |
|
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3399 #if INCLUDE_ALL_GCS |
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3400 if (UseParallelGC || UseParallelOldGC) { |
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3401 if (UseNUMA) { |
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3402 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
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3403 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
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3404 } |
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3405 // For those collectors or operating systems (eg, Windows) that do |
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3406 // not support full UseNUMA, we will map to UseNUMAInterleaving for now |
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3407 UseNUMAInterleaving = true; |
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3408 } |
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3409 } |
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3410 #endif // INCLUDE_ALL_GCS |
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3411 return JNI_OK; |
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3412 } |
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3413 |
| 0 | 3414 int Arguments::PropertyList_count(SystemProperty* pl) { |
| 3415 int count = 0; | |
| 3416 while(pl != NULL) { | |
| 3417 count++; | |
| 3418 pl = pl->next(); | |
| 3419 } | |
| 3420 return count; | |
| 3421 } | |
| 3422 | |
| 3423 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
| 3424 assert(key != NULL, "just checking"); | |
| 3425 SystemProperty* prop; | |
| 3426 for (prop = pl; prop != NULL; prop = prop->next()) { | |
| 3427 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
| 3428 } | |
| 3429 return NULL; | |
| 3430 } | |
| 3431 | |
| 3432 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
| 3433 int count = 0; | |
| 3434 const char* ret_val = NULL; | |
| 3435 | |
| 3436 while(pl != NULL) { | |
| 3437 if(count >= index) { | |
| 3438 ret_val = pl->key(); | |
| 3439 break; | |
| 3440 } | |
| 3441 count++; | |
| 3442 pl = pl->next(); | |
| 3443 } | |
| 3444 | |
| 3445 return ret_val; | |
| 3446 } | |
| 3447 | |
| 3448 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
| 3449 int count = 0; | |
| 3450 char* ret_val = NULL; | |
| 3451 | |
| 3452 while(pl != NULL) { | |
| 3453 if(count >= index) { | |
| 3454 ret_val = pl->value(); | |
| 3455 break; | |
| 3456 } | |
| 3457 count++; | |
| 3458 pl = pl->next(); | |
| 3459 } | |
| 3460 | |
| 3461 return ret_val; | |
| 3462 } | |
| 3463 | |
| 3464 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
| 3465 SystemProperty* p = *plist; | |
| 3466 if (p == NULL) { | |
| 3467 *plist = new_p; | |
| 3468 } else { | |
| 3469 while (p->next() != NULL) { | |
| 3470 p = p->next(); | |
| 3471 } | |
| 3472 p->set_next(new_p); | |
| 3473 } | |
| 3474 } | |
| 3475 | |
| 3476 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
| 3477 if (plist == NULL) | |
| 3478 return; | |
| 3479 | |
| 3480 SystemProperty* new_p = new SystemProperty(k, v, true); | |
| 3481 PropertyList_add(plist, new_p); | |
| 3482 } | |
| 3483 | |
| 3484 // This add maintains unique property key in the list. | |
| 691 | 3485 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
| 0 | 3486 if (plist == NULL) |
| 3487 return; | |
| 3488 | |
| 3489 // If property key exist then update with new value. | |
| 3490 SystemProperty* prop; | |
| 3491 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
| 3492 if (strcmp(k, prop->key()) == 0) { | |
| 691 | 3493 if (append) { |
| 3494 prop->append_value(v); | |
| 3495 } else { | |
| 3496 prop->set_value(v); | |
| 3497 } | |
| 0 | 3498 return; |
| 3499 } | |
| 3500 } | |
| 3501 | |
| 3502 PropertyList_add(plist, k, v); | |
| 3503 } | |
| 3504 | |
| 3505 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
| 3506 // Returns true if all of the source pointed by src has been copied over to | |
| 3507 // the destination buffer pointed by buf. Otherwise, returns false. | |
| 3508 // Notes: | |
| 3509 // 1. If the length (buflen) of the destination buffer excluding the | |
| 3510 // NULL terminator character is not long enough for holding the expanded | |
| 3511 // pid characters, it also returns false instead of returning the partially | |
| 3512 // expanded one. | |
| 3513 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
| 3514 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
| 3515 char* buf, size_t buflen) { | |
| 3516 const char* p = src; | |
| 3517 char* b = buf; | |
| 3518 const char* src_end = &src[srclen]; | |
| 3519 char* buf_end = &buf[buflen - 1]; | |
| 3520 | |
| 3521 while (p < src_end && b < buf_end) { | |
| 3522 if (*p == '%') { | |
| 3523 switch (*(++p)) { | |
| 3524 case '%': // "%%" ==> "%" | |
| 3525 *b++ = *p++; | |
| 3526 break; | |
| 3527 case 'p': { // "%p" ==> current process id | |
| 3528 // buf_end points to the character before the last character so | |
| 3529 // that we could write '\0' to the end of the buffer. | |
| 3530 size_t buf_sz = buf_end - b + 1; | |
| 3531 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
| 3532 | |
| 3533 // if jio_snprintf fails or the buffer is not long enough to hold | |
| 3534 // the expanded pid, returns false. | |
| 3535 if (ret < 0 || ret >= (int)buf_sz) { | |
| 3536 return false; | |
| 3537 } else { | |
| 3538 b += ret; | |
| 3539 assert(*b == '\0', "fail in copy_expand_pid"); | |
| 3540 if (p == src_end && b == buf_end + 1) { | |
| 3541 // reach the end of the buffer. | |
| 3542 return true; | |
| 3543 } | |
| 3544 } | |
| 3545 p++; | |
| 3546 break; | |
| 3547 } | |
| 3548 default : | |
| 3549 *b++ = '%'; | |
| 3550 } | |
| 3551 } else { | |
| 3552 *b++ = *p++; | |
| 3553 } | |
| 3554 } | |
| 3555 *b = '\0'; | |
| 3556 return (p == src_end); // return false if not all of the source was copied | |
| 3557 } |