Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/arguments.cpp @ 10185:d50cc62e94ff
8012715: G1: GraphKit accesses PtrQueue::_index as int but is size_t
Summary: In graphKit INT operations were generated to access PtrQueue::_index which has type size_t. This is 64 bit on 64-bit machines. No problems occur on little endian machines as long as the index fits into 32 bit, but on big endian machines the upper part is read, which is zero. This leads to unnecessary branches to the slow path in the runtime.
Reviewed-by: twisti, johnc
Contributed-by: Martin Doerr <martin.doerr@sap.com>
| author | johnc |
|---|---|
| date | Wed, 24 Apr 2013 14:48:43 -0700 |
| parents | 480d934f62a8 |
| children | 89e4d67fdd2a 63e31ce40bdb 3c0584fec1e6 |
| 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 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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264 #ifdef PRODUCT |
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265 { "DesiredMethodLimit", |
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266 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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267 #endif // PRODUCT |
| 242 | 268 { NULL, JDK_Version(0), JDK_Version(0) } |
| 269 }; | |
| 270 | |
| 271 // Returns true if the flag is obsolete and fits into the range specified | |
| 272 // for being ignored. In the case that the flag is ignored, the 'version' | |
| 273 // value is filled in with the version number when the flag became | |
| 274 // obsolete so that that value can be displayed to the user. | |
| 275 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
| 0 | 276 int i = 0; |
| 242 | 277 assert(version != NULL, "Must provide a version buffer"); |
| 278 while (obsolete_jvm_flags[i].name != NULL) { | |
| 279 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
| 0 | 280 // <flag>=xxx form |
| 281 // [-|+]<flag> form | |
| 242 | 282 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
| 0 | 283 ((s[0] == '+' || s[0] == '-') && |
| 242 | 284 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
| 285 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
| 286 *version = flag_status.obsoleted_in; | |
| 287 return true; | |
| 288 } | |
| 0 | 289 } |
| 290 i++; | |
| 291 } | |
| 292 return false; | |
| 293 } | |
| 294 | |
| 295 // Constructs the system class path (aka boot class path) from the following | |
| 296 // components, in order: | |
| 297 // | |
| 298 // prefix // from -Xbootclasspath/p:... | |
| 299 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
| 300 // base // from os::get_system_properties() or -Xbootclasspath= | |
| 301 // suffix // from -Xbootclasspath/a:... | |
| 302 // | |
| 303 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
| 304 // directories are added to the sysclasspath just before the base. | |
| 305 // | |
| 306 // This could be AllStatic, but it isn't needed after argument processing is | |
| 307 // complete. | |
| 308 class SysClassPath: public StackObj { | |
| 309 public: | |
| 310 SysClassPath(const char* base); | |
| 311 ~SysClassPath(); | |
| 312 | |
| 313 inline void set_base(const char* base); | |
| 314 inline void add_prefix(const char* prefix); | |
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315 inline void add_suffix_to_prefix(const char* suffix); |
| 0 | 316 inline void add_suffix(const char* suffix); |
| 317 inline void reset_path(const char* base); | |
| 318 | |
| 319 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
| 320 // property. Must be called after all command-line arguments have been | |
| 321 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
| 322 // combined_path(). | |
| 323 void expand_endorsed(); | |
| 324 | |
| 325 inline const char* get_base() const { return _items[_scp_base]; } | |
| 326 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
| 327 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
| 328 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
| 329 | |
| 330 // Combine all the components into a single c-heap-allocated string; caller | |
| 331 // must free the string if/when no longer needed. | |
| 332 char* combined_path(); | |
| 333 | |
| 334 private: | |
| 335 // Utility routines. | |
| 336 static char* add_to_path(const char* path, const char* str, bool prepend); | |
| 337 static char* add_jars_to_path(char* path, const char* directory); | |
| 338 | |
| 339 inline void reset_item_at(int index); | |
| 340 | |
| 341 // Array indices for the items that make up the sysclasspath. All except the | |
| 342 // base are allocated in the C heap and freed by this class. | |
| 343 enum { | |
| 344 _scp_prefix, // from -Xbootclasspath/p:... | |
| 345 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
| 346 _scp_base, // the default sysclasspath | |
| 347 _scp_suffix, // from -Xbootclasspath/a:... | |
| 348 _scp_nitems // the number of items, must be last. | |
| 349 }; | |
| 350 | |
| 351 const char* _items[_scp_nitems]; | |
| 352 DEBUG_ONLY(bool _expansion_done;) | |
| 353 }; | |
| 354 | |
| 355 SysClassPath::SysClassPath(const char* base) { | |
| 356 memset(_items, 0, sizeof(_items)); | |
| 357 _items[_scp_base] = base; | |
| 358 DEBUG_ONLY(_expansion_done = false;) | |
| 359 } | |
| 360 | |
| 361 SysClassPath::~SysClassPath() { | |
| 362 // Free everything except the base. | |
| 363 for (int i = 0; i < _scp_nitems; ++i) { | |
| 364 if (i != _scp_base) reset_item_at(i); | |
| 365 } | |
| 366 DEBUG_ONLY(_expansion_done = false;) | |
| 367 } | |
| 368 | |
| 369 inline void SysClassPath::set_base(const char* base) { | |
| 370 _items[_scp_base] = base; | |
| 371 } | |
| 372 | |
| 373 inline void SysClassPath::add_prefix(const char* prefix) { | |
| 374 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
| 375 } | |
| 376 | |
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377 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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378 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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379 } |
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380 |
| 0 | 381 inline void SysClassPath::add_suffix(const char* suffix) { |
| 382 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
| 383 } | |
| 384 | |
| 385 inline void SysClassPath::reset_item_at(int index) { | |
| 386 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
| 387 if (_items[index] != NULL) { | |
| 6197 | 388 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
| 0 | 389 _items[index] = NULL; |
| 390 } | |
| 391 } | |
| 392 | |
| 393 inline void SysClassPath::reset_path(const char* base) { | |
| 394 // Clear the prefix and suffix. | |
| 395 reset_item_at(_scp_prefix); | |
| 396 reset_item_at(_scp_suffix); | |
| 397 set_base(base); | |
| 398 } | |
| 399 | |
| 400 //------------------------------------------------------------------------------ | |
| 401 | |
| 402 void SysClassPath::expand_endorsed() { | |
| 403 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
| 404 | |
| 405 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
| 406 if (path == NULL) { | |
| 407 path = Arguments::get_endorsed_dir(); | |
| 408 assert(path != NULL, "no default for java.endorsed.dirs"); | |
| 409 } | |
| 410 | |
| 411 char* expanded_path = NULL; | |
| 412 const char separator = *os::path_separator(); | |
| 413 const char* const end = path + strlen(path); | |
| 414 while (path < end) { | |
| 415 const char* tmp_end = strchr(path, separator); | |
| 416 if (tmp_end == NULL) { | |
| 417 expanded_path = add_jars_to_path(expanded_path, path); | |
| 418 path = end; | |
| 419 } else { | |
| 6197 | 420 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
| 0 | 421 memcpy(dirpath, path, tmp_end - path); |
| 422 dirpath[tmp_end - path] = '\0'; | |
| 423 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
| 6197 | 424 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
| 0 | 425 path = tmp_end + 1; |
| 426 } | |
| 427 } | |
| 428 _items[_scp_endorsed] = expanded_path; | |
| 429 DEBUG_ONLY(_expansion_done = true;) | |
| 430 } | |
| 431 | |
| 432 // Combine the bootclasspath elements, some of which may be null, into a single | |
| 433 // c-heap-allocated string. | |
| 434 char* SysClassPath::combined_path() { | |
| 435 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
| 436 assert(_expansion_done, "must call expand_endorsed() first."); | |
| 437 | |
| 438 size_t lengths[_scp_nitems]; | |
| 439 size_t total_len = 0; | |
| 440 | |
| 441 const char separator = *os::path_separator(); | |
| 442 | |
| 443 // Get the lengths. | |
| 444 int i; | |
| 445 for (i = 0; i < _scp_nitems; ++i) { | |
| 446 if (_items[i] != NULL) { | |
| 447 lengths[i] = strlen(_items[i]); | |
| 448 // Include space for the separator char (or a NULL for the last item). | |
| 449 total_len += lengths[i] + 1; | |
| 450 } | |
| 451 } | |
| 452 assert(total_len > 0, "empty sysclasspath not allowed"); | |
| 453 | |
| 454 // Copy the _items to a single string. | |
| 6197 | 455 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
| 0 | 456 char* cp_tmp = cp; |
| 457 for (i = 0; i < _scp_nitems; ++i) { | |
| 458 if (_items[i] != NULL) { | |
| 459 memcpy(cp_tmp, _items[i], lengths[i]); | |
| 460 cp_tmp += lengths[i]; | |
| 461 *cp_tmp++ = separator; | |
| 462 } | |
| 463 } | |
| 464 *--cp_tmp = '\0'; // Replace the extra separator. | |
| 465 return cp; | |
| 466 } | |
| 467 | |
| 468 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 469 char* | |
| 470 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
| 471 char *cp; | |
| 472 | |
| 473 assert(str != NULL, "just checking"); | |
| 474 if (path == NULL) { | |
| 475 size_t len = strlen(str) + 1; | |
| 6197 | 476 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 477 memcpy(cp, str, len); // copy the trailing null |
| 478 } else { | |
| 479 const char separator = *os::path_separator(); | |
| 480 size_t old_len = strlen(path); | |
| 481 size_t str_len = strlen(str); | |
| 482 size_t len = old_len + str_len + 2; | |
| 483 | |
| 484 if (prepend) { | |
| 6197 | 485 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 486 char* cp_tmp = cp; |
| 487 memcpy(cp_tmp, str, str_len); | |
| 488 cp_tmp += str_len; | |
| 489 *cp_tmp = separator; | |
| 490 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
| 6197 | 491 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
| 0 | 492 } else { |
| 6197 | 493 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
| 0 | 494 char* cp_tmp = cp + old_len; |
| 495 *cp_tmp = separator; | |
| 496 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
| 497 } | |
| 498 } | |
| 499 return cp; | |
| 500 } | |
| 501 | |
| 502 // Scan the directory and append any jar or zip files found to path. | |
| 503 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 504 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
| 505 DIR* dir = os::opendir(directory); | |
| 506 if (dir == NULL) return path; | |
| 507 | |
| 508 char dir_sep[2] = { '\0', '\0' }; | |
| 509 size_t directory_len = strlen(directory); | |
| 510 const char fileSep = *os::file_separator(); | |
| 511 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
| 512 | |
| 513 /* Scan the directory for jars/zips, appending them to path. */ | |
| 514 struct dirent *entry; | |
| 6197 | 515 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
| 0 | 516 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
| 517 const char* name = entry->d_name; | |
| 518 const char* ext = name + strlen(name) - 4; | |
| 519 bool isJarOrZip = ext > name && | |
| 520 (os::file_name_strcmp(ext, ".jar") == 0 || | |
| 521 os::file_name_strcmp(ext, ".zip") == 0); | |
| 522 if (isJarOrZip) { | |
| 6197 | 523 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
| 0 | 524 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
| 525 path = add_to_path(path, jarpath, false); | |
| 6197 | 526 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
| 0 | 527 } |
| 528 } | |
| 6197 | 529 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
| 0 | 530 os::closedir(dir); |
| 531 return path; | |
| 532 } | |
| 533 | |
| 534 // Parses a memory size specification string. | |
|
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535 static bool atomull(const char *s, julong* result) { |
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536 julong n = 0; |
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537 int args_read = sscanf(s, JULONG_FORMAT, &n); |
| 0 | 538 if (args_read != 1) { |
| 539 return false; | |
| 540 } | |
| 541 while (*s != '\0' && isdigit(*s)) { | |
| 542 s++; | |
| 543 } | |
| 544 // 4705540: illegal if more characters are found after the first non-digit | |
| 545 if (strlen(s) > 1) { | |
| 546 return false; | |
| 547 } | |
| 548 switch (*s) { | |
| 549 case 'T': case 't': | |
| 550 *result = n * G * K; | |
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551 // Check for overflow. |
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552 if (*result/((julong)G * K) != n) return false; |
| 0 | 553 return true; |
| 554 case 'G': case 'g': | |
| 555 *result = n * G; | |
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556 if (*result/G != n) return false; |
| 0 | 557 return true; |
| 558 case 'M': case 'm': | |
| 559 *result = n * M; | |
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560 if (*result/M != n) return false; |
| 0 | 561 return true; |
| 562 case 'K': case 'k': | |
| 563 *result = n * K; | |
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564 if (*result/K != n) return false; |
| 0 | 565 return true; |
| 566 case '\0': | |
| 567 *result = n; | |
| 568 return true; | |
| 569 default: | |
| 570 return false; | |
| 571 } | |
| 572 } | |
| 573 | |
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574 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
| 0 | 575 if (size < min_size) return arg_too_small; |
| 576 // Check that size will fit in a size_t (only relevant on 32-bit) | |
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577 if (size > max_uintx) return arg_too_big; |
| 0 | 578 return arg_in_range; |
| 579 } | |
| 580 | |
| 581 // Describe an argument out of range error | |
| 582 void Arguments::describe_range_error(ArgsRange errcode) { | |
| 583 switch(errcode) { | |
| 584 case arg_too_big: | |
| 585 jio_fprintf(defaultStream::error_stream(), | |
| 586 "The specified size exceeds the maximum " | |
| 587 "representable size.\n"); | |
| 588 break; | |
| 589 case arg_too_small: | |
| 590 case arg_unreadable: | |
| 591 case arg_in_range: | |
| 592 // do nothing for now | |
| 593 break; | |
| 594 default: | |
| 595 ShouldNotReachHere(); | |
| 596 } | |
| 597 } | |
| 598 | |
| 599 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
| 600 return CommandLineFlags::boolAtPut(name, &value, origin); | |
| 601 } | |
| 602 | |
| 603 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
| 604 double v; | |
| 605 if (sscanf(value, "%lf", &v) != 1) { | |
| 606 return false; | |
| 607 } | |
| 608 | |
| 609 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
| 610 return true; | |
| 611 } | |
| 612 return false; | |
| 613 } | |
| 614 | |
| 615 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
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616 julong v; |
| 0 | 617 intx intx_v; |
| 618 bool is_neg = false; | |
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619 // Check the sign first since atomull() parses only unsigned values. |
| 0 | 620 if (*value == '-') { |
| 621 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
| 622 return false; | |
| 623 } | |
| 624 value++; | |
| 625 is_neg = true; | |
| 626 } | |
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627 if (!atomull(value, &v)) { |
| 0 | 628 return false; |
| 629 } | |
| 630 intx_v = (intx) v; | |
| 631 if (is_neg) { | |
| 632 intx_v = -intx_v; | |
| 633 } | |
| 634 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
| 635 return true; | |
| 636 } | |
| 637 uintx uintx_v = (uintx) v; | |
| 638 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
| 639 return true; | |
| 640 } | |
| 1064 | 641 uint64_t uint64_t_v = (uint64_t) v; |
| 642 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
| 643 return true; | |
| 644 } | |
| 0 | 645 return false; |
| 646 } | |
| 647 | |
| 648 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
| 649 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
| 650 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 651 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 652 return true; |
| 653 } | |
| 654 | |
| 655 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
| 656 const char* old_value = ""; | |
| 657 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
| 658 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
| 659 size_t new_len = strlen(new_value); | |
| 660 const char* value; | |
| 661 char* free_this_too = NULL; | |
| 662 if (old_len == 0) { | |
| 663 value = new_value; | |
| 664 } else if (new_len == 0) { | |
| 665 value = old_value; | |
| 666 } else { | |
| 6197 | 667 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
| 0 | 668 // each new setting adds another LINE to the switch: |
| 669 sprintf(buf, "%s\n%s", old_value, new_value); | |
| 670 value = buf; | |
| 671 free_this_too = buf; | |
| 672 } | |
| 673 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
| 674 // CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 675 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 676 if (free_this_too != NULL) { |
| 677 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
| 6197 | 678 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
| 0 | 679 } |
| 680 return true; | |
| 681 } | |
| 682 | |
| 683 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
| 684 | |
| 685 // range of acceptable characters spelled out for portability reasons | |
| 686 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
| 687 #define BUFLEN 255 | |
| 688 char name[BUFLEN+1]; | |
| 689 char dummy; | |
| 690 | |
| 691 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 692 return set_bool_flag(name, false, origin); | |
| 693 } | |
| 694 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 695 return set_bool_flag(name, true, origin); | |
| 696 } | |
| 697 | |
| 698 char punct; | |
| 699 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
| 700 const char* value = strchr(arg, '=') + 1; | |
| 701 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 702 if (flag != NULL && flag->is_ccstr()) { | |
| 703 if (flag->ccstr_accumulates()) { | |
| 704 return append_to_string_flag(name, value, origin); | |
| 705 } else { | |
| 706 if (value[0] == '\0') { | |
| 707 value = NULL; | |
| 708 } | |
| 709 return set_string_flag(name, value, origin); | |
| 710 } | |
| 711 } | |
| 712 } | |
| 713 | |
| 714 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
| 715 const char* value = strchr(arg, '=') + 1; | |
| 716 // -XX:Foo:=xxx will reset the string flag to the given value. | |
| 717 if (value[0] == '\0') { | |
| 718 value = NULL; | |
| 719 } | |
| 720 return set_string_flag(name, value, origin); | |
| 721 } | |
| 722 | |
| 723 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
| 724 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
| 725 #define NUMBER_RANGE "[0123456789]" | |
| 726 char value[BUFLEN + 1]; | |
| 727 char value2[BUFLEN + 1]; | |
| 728 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
| 729 // Looks like a floating-point number -- try again with more lenient format string | |
| 730 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
| 731 return set_fp_numeric_flag(name, value, origin); | |
| 732 } | |
| 733 } | |
| 734 | |
| 735 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
| 736 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
| 737 return set_numeric_flag(name, value, origin); | |
| 738 } | |
| 739 | |
| 740 return false; | |
| 741 } | |
| 742 | |
| 743 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
| 744 assert(bldarray != NULL, "illegal argument"); | |
| 745 | |
| 746 if (arg == NULL) { | |
| 747 return; | |
| 748 } | |
| 749 | |
| 750 int index = *count; | |
| 751 | |
| 752 // expand the array and add arg to the last element | |
| 753 (*count)++; | |
| 754 if (*bldarray == NULL) { | |
| 6197 | 755 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
| 0 | 756 } else { |
| 6197 | 757 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
| 0 | 758 } |
| 759 (*bldarray)[index] = strdup(arg); | |
| 760 } | |
| 761 | |
| 762 void Arguments::build_jvm_args(const char* arg) { | |
| 763 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
| 764 } | |
| 765 | |
| 766 void Arguments::build_jvm_flags(const char* arg) { | |
| 767 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
| 768 } | |
| 769 | |
| 770 // utility function to return a string that concatenates all | |
| 771 // strings in a given char** array | |
| 772 const char* Arguments::build_resource_string(char** args, int count) { | |
| 773 if (args == NULL || count == 0) { | |
| 774 return NULL; | |
| 775 } | |
| 776 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
| 777 for (int i = 1; i < count; i++) { | |
| 778 length += strlen(args[i]) + 1; // add 1 for a space | |
| 779 } | |
| 780 char* s = NEW_RESOURCE_ARRAY(char, length); | |
| 781 strcpy(s, args[0]); | |
| 782 for (int j = 1; j < count; j++) { | |
| 783 strcat(s, " "); | |
| 784 strcat(s, args[j]); | |
| 785 } | |
| 786 return (const char*) s; | |
| 787 } | |
| 788 | |
| 789 void Arguments::print_on(outputStream* st) { | |
| 790 st->print_cr("VM Arguments:"); | |
| 791 if (num_jvm_flags() > 0) { | |
| 792 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
| 793 } | |
| 794 if (num_jvm_args() > 0) { | |
| 795 st->print("jvm_args: "); print_jvm_args_on(st); | |
| 796 } | |
| 797 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
|
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798 if (_java_class_path != NULL) { |
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799 char* path = _java_class_path->value(); |
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800 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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801 } |
| 0 | 802 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
| 803 } | |
| 804 | |
| 805 void Arguments::print_jvm_flags_on(outputStream* st) { | |
| 806 if (_num_jvm_flags > 0) { | |
| 807 for (int i=0; i < _num_jvm_flags; i++) { | |
| 808 st->print("%s ", _jvm_flags_array[i]); | |
| 809 } | |
| 810 st->print_cr(""); | |
| 811 } | |
| 812 } | |
| 813 | |
| 814 void Arguments::print_jvm_args_on(outputStream* st) { | |
| 815 if (_num_jvm_args > 0) { | |
| 816 for (int i=0; i < _num_jvm_args; i++) { | |
| 817 st->print("%s ", _jvm_args_array[i]); | |
| 818 } | |
| 819 st->print_cr(""); | |
| 820 } | |
| 821 } | |
| 822 | |
| 242 | 823 bool Arguments::process_argument(const char* arg, |
| 824 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
| 825 | |
| 826 JDK_Version since = JDK_Version(); | |
| 0 | 827 |
| 3250 | 828 if (parse_argument(arg, origin) || ignore_unrecognized) { |
| 829 return true; | |
| 0 | 830 } |
| 3250 | 831 |
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832 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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833 const char* const argname = has_plus_minus ? arg + 1 : arg; |
| 3250 | 834 if (is_newly_obsolete(arg, &since)) { |
| 835 char version[256]; | |
| 836 since.to_string(version, sizeof(version)); | |
| 837 warning("ignoring option %s; support was removed in %s", argname, version); | |
| 838 return true; | |
| 839 } | |
| 840 | |
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841 // For locked flags, report a custom error message if available. |
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842 // Otherwise, report the standard unrecognized VM option. |
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843 |
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844 size_t arg_len; |
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845 const char* equal_sign = strchr(argname, '='); |
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846 if (equal_sign == NULL) { |
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847 arg_len = strlen(argname); |
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848 } else { |
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849 arg_len = equal_sign - argname; |
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850 } |
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851 |
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852 Flag* found_flag = Flag::find_flag((char*)argname, arg_len, true); |
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853 if (found_flag != NULL) { |
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854 char locked_message_buf[BUFLEN]; |
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855 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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856 if (strlen(locked_message_buf) == 0) { |
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857 if (found_flag->is_bool() && !has_plus_minus) { |
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858 jio_fprintf(defaultStream::error_stream(), |
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859 "Missing +/- setting for VM option '%s'\n", argname); |
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860 } else if (!found_flag->is_bool() && has_plus_minus) { |
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861 jio_fprintf(defaultStream::error_stream(), |
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862 "Unexpected +/- setting in VM option '%s'\n", argname); |
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863 } else { |
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864 jio_fprintf(defaultStream::error_stream(), |
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865 "Improperly specified VM option '%s'\n", argname); |
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866 } |
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867 } else { |
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868 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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869 } |
| 6017 | 870 } else { |
| 871 jio_fprintf(defaultStream::error_stream(), | |
| 872 "Unrecognized VM option '%s'\n", argname); | |
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873 } |
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874 |
| 3250 | 875 // allow for commandline "commenting out" options like -XX:#+Verbose |
| 876 return arg[0] == '#'; | |
| 0 | 877 } |
| 878 | |
| 879 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
| 880 FILE* stream = fopen(file_name, "rb"); | |
| 881 if (stream == NULL) { | |
| 882 if (should_exist) { | |
| 883 jio_fprintf(defaultStream::error_stream(), | |
| 884 "Could not open settings file %s\n", file_name); | |
| 885 return false; | |
| 886 } else { | |
| 887 return true; | |
| 888 } | |
| 889 } | |
| 890 | |
| 891 char token[1024]; | |
| 892 int pos = 0; | |
| 893 | |
| 894 bool in_white_space = true; | |
| 895 bool in_comment = false; | |
| 896 bool in_quote = false; | |
| 897 char quote_c = 0; | |
| 898 bool result = true; | |
| 899 | |
| 900 int c = getc(stream); | |
| 6901 | 901 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
| 0 | 902 if (in_white_space) { |
| 903 if (in_comment) { | |
| 904 if (c == '\n') in_comment = false; | |
| 905 } else { | |
| 906 if (c == '#') in_comment = true; | |
| 907 else if (!isspace(c)) { | |
| 908 in_white_space = false; | |
| 909 token[pos++] = c; | |
| 910 } | |
| 911 } | |
| 912 } else { | |
| 913 if (c == '\n' || (!in_quote && isspace(c))) { | |
| 914 // token ends at newline, or at unquoted whitespace | |
| 915 // this allows a way to include spaces in string-valued options | |
| 916 token[pos] = '\0'; | |
| 917 logOption(token); | |
| 918 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 919 build_jvm_flags(token); | |
| 920 pos = 0; | |
| 921 in_white_space = true; | |
| 922 in_quote = false; | |
| 923 } else if (!in_quote && (c == '\'' || c == '"')) { | |
| 924 in_quote = true; | |
| 925 quote_c = c; | |
| 926 } else if (in_quote && (c == quote_c)) { | |
| 927 in_quote = false; | |
| 928 } else { | |
| 929 token[pos++] = c; | |
| 930 } | |
| 931 } | |
| 932 c = getc(stream); | |
| 933 } | |
| 934 if (pos > 0) { | |
| 935 token[pos] = '\0'; | |
| 936 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 937 build_jvm_flags(token); | |
| 938 } | |
| 939 fclose(stream); | |
| 940 return result; | |
| 941 } | |
| 942 | |
| 943 //============================================================================================================= | |
| 944 // Parsing of properties (-D) | |
| 945 | |
| 946 const char* Arguments::get_property(const char* key) { | |
| 947 return PropertyList_get_value(system_properties(), key); | |
| 948 } | |
| 949 | |
| 950 bool Arguments::add_property(const char* prop) { | |
| 951 const char* eq = strchr(prop, '='); | |
| 952 char* key; | |
| 953 // ns must be static--its address may be stored in a SystemProperty object. | |
| 954 const static char ns[1] = {0}; | |
| 955 char* value = (char *)ns; | |
| 956 | |
| 957 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
| 6197 | 958 key = AllocateHeap(key_len + 1, mtInternal); |
| 0 | 959 strncpy(key, prop, key_len); |
| 960 key[key_len] = '\0'; | |
| 961 | |
| 962 if (eq != NULL) { | |
| 963 size_t value_len = strlen(prop) - key_len - 1; | |
| 6197 | 964 value = AllocateHeap(value_len + 1, mtInternal); |
| 0 | 965 strncpy(value, &prop[key_len + 1], value_len + 1); |
| 966 } | |
| 967 | |
| 968 if (strcmp(key, "java.compiler") == 0) { | |
| 969 process_java_compiler_argument(value); | |
| 970 FreeHeap(key); | |
| 971 if (eq != NULL) { | |
| 972 FreeHeap(value); | |
| 973 } | |
| 974 return true; | |
| 691 | 975 } else if (strcmp(key, "sun.java.command") == 0) { |
| 0 | 976 _java_command = value; |
| 977 | |
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978 // Record value in Arguments, but let it get passed to Java. |
| 691 | 979 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
| 0 | 980 // launcher.pid property is private and is processed |
| 981 // in process_sun_java_launcher_properties(); | |
| 982 // the sun.java.launcher property is passed on to the java application | |
| 983 FreeHeap(key); | |
| 984 if (eq != NULL) { | |
| 985 FreeHeap(value); | |
| 986 } | |
| 987 return true; | |
| 691 | 988 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 0 | 989 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 990 // its value without going through the property list or making a Java call. | |
| 991 _java_vendor_url_bug = value; | |
| 691 | 992 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 993 PropertyList_unique_add(&_system_properties, key, value, true); | |
| 994 return true; | |
| 0 | 995 } |
| 996 // Create new property and add at the end of the list | |
| 997 PropertyList_unique_add(&_system_properties, key, value); | |
| 998 return true; | |
| 999 } | |
| 1000 | |
| 1001 //=========================================================================================================== | |
| 1002 // Setting int/mixed/comp mode flags | |
| 1003 | |
| 1004 void Arguments::set_mode_flags(Mode mode) { | |
| 1005 // Set up default values for all flags. | |
| 1006 // If you add a flag to any of the branches below, | |
| 1007 // add a default value for it here. | |
| 1008 set_java_compiler(false); | |
| 1009 _mode = mode; | |
| 1010 | |
| 1011 // Ensure Agent_OnLoad has the correct initial values. | |
| 1012 // This may not be the final mode; mode may change later in onload phase. | |
| 1013 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1014 (char*)VM_Version::vm_info_string(), false); |
| 0 | 1015 |
| 1016 UseInterpreter = true; | |
| 1017 UseCompiler = true; | |
| 1018 UseLoopCounter = true; | |
| 1019 | |
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1020 #ifndef ZERO |
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1021 // Turn these off for mixed and comp. Leave them on for Zero. |
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1022 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
|
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1023 UseFastAccessorMethods = (mode == _int); |
|
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1024 } |
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1025 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1026 UseFastEmptyMethods = (mode == _int); |
|
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1027 } |
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1028 #endif |
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1029 |
| 0 | 1030 // Default values may be platform/compiler dependent - |
| 1031 // use the saved values | |
| 1032 ClipInlining = Arguments::_ClipInlining; | |
| 1033 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
| 1034 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
| 1035 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
| 1036 | |
| 1037 // Change from defaults based on mode | |
| 1038 switch (mode) { | |
| 1039 default: | |
| 1040 ShouldNotReachHere(); | |
| 1041 break; | |
| 1042 case _int: | |
| 1043 UseCompiler = false; | |
| 1044 UseLoopCounter = false; | |
| 1045 AlwaysCompileLoopMethods = false; | |
| 1046 UseOnStackReplacement = false; | |
| 1047 break; | |
| 1048 case _mixed: | |
| 1049 // same as default | |
| 1050 break; | |
| 1051 case _comp: | |
| 1052 UseInterpreter = false; | |
| 1053 BackgroundCompilation = false; | |
| 1054 ClipInlining = false; | |
|
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1055 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1056 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1057 // compile a level 4 (C2) and then continue executing it. |
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1058 if (TieredCompilation) { |
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1059 Tier3InvokeNotifyFreqLog = 0; |
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1060 Tier4InvocationThreshold = 0; |
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1061 } |
| 0 | 1062 break; |
| 1063 } | |
| 1064 } | |
| 1065 | |
| 1066 // Conflict: required to use shared spaces (-Xshare:on), but | |
| 1067 // incompatible command line options were chosen. | |
| 1068 | |
| 1069 static void no_shared_spaces() { | |
| 1070 if (RequireSharedSpaces) { | |
| 1071 jio_fprintf(defaultStream::error_stream(), | |
| 1072 "Class data sharing is inconsistent with other specified options.\n"); | |
| 1073 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
| 1074 } else { | |
| 1075 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 1076 } | |
| 1077 } | |
| 1078 | |
| 1783 | 1079 void Arguments::set_tiered_flags() { |
|
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1080 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
| 1783 | 1081 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
|
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1082 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
| 1783 | 1083 } |
| 1084 if (CompilationPolicyChoice < 2) { | |
| 1085 vm_exit_during_initialization( | |
| 1086 "Incompatible compilation policy selected", NULL); | |
| 1087 } | |
|
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1088 // Increase the code cache size - tiered compiles a lot more. |
| 1783 | 1089 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
|
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1090 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
| 1783 | 1091 } |
| 1092 } | |
| 1093 | |
|
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1094 #if INCLUDE_ALL_GCS |
| 4838 | 1095 static void disable_adaptive_size_policy(const char* collector_name) { |
| 1096 if (UseAdaptiveSizePolicy) { | |
| 1097 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
| 1098 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
| 1099 collector_name); | |
| 1100 } | |
| 1101 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
| 1102 } | |
| 1103 } | |
| 1104 | |
| 0 | 1105 void Arguments::set_parnew_gc_flags() { |
| 1064 | 1106 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
|
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1107 "control point invariant"); |
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1108 assert(UseParNewGC, "Error"); |
| 0 | 1109 |
| 4838 | 1110 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
| 1111 disable_adaptive_size_policy("UseParNewGC"); | |
|
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1112 |
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1113 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1114 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1115 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1116 } else if (ParallelGCThreads == 0) { |
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1117 jio_fprintf(defaultStream::error_stream(), |
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1118 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1119 vm_exit(1); |
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1120 } |
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1121 |
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1122 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1123 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1124 // we set them to 1024 and 1024. |
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1125 // See CR 6362902. |
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1126 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1127 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
| 0 | 1128 } |
|
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1129 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1130 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1131 } |
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1132 |
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1133 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1134 // See CR 6362902. |
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1135 if (AlwaysTenure) { |
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1136 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1137 } |
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1138 // When using compressed oops, we use local overflow stacks, |
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1139 // rather than using a global overflow list chained through |
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1140 // the klass word of the object's pre-image. |
|
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1141 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1142 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1143 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
| 0 | 1144 } |
|
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1145 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
| 0 | 1146 } |
|
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1147 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
| 0 | 1148 } |
| 1149 | |
| 1150 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
| 1151 // sparc/solaris for certain applications, but would gain from | |
| 1152 // further optimization and tuning efforts, and would almost | |
| 1153 // certainly gain from analysis of platform and environment. | |
| 1154 void Arguments::set_cms_and_parnew_gc_flags() { | |
| 1064 | 1155 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
|
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1156 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
|
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1157 |
| 0 | 1158 // If we are using CMS, we prefer to UseParNewGC, |
| 1159 // unless explicitly forbidden. | |
|
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1160 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
|
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1161 FLAG_SET_ERGO(bool, UseParNewGC, true); |
| 0 | 1162 } |
| 1163 | |
|
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1164 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
| 4838 | 1165 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
| 0 | 1166 |
| 1167 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
| 1168 // as needed. | |
|
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1169 if (UseParNewGC) { |
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1170 set_parnew_gc_flags(); |
| 0 | 1171 } |
| 1172 | |
|
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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 |
| 1064 | 1210 if (PrintGCDetails && Verbose) { |
|
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1211 // Too early to use gclog_or_tty |
|
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1212 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
|
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1213 " initial_heap_size: " SIZE_FORMAT |
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1214 " max_heap: " SIZE_FORMAT, |
| 1064 | 1215 min_heap_size(), InitialHeapSize, max_heap); |
|
13
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1216 } |
|
2368
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1217 size_t min_new = preferred_max_new_size; |
|
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1218 if (FLAG_IS_CMDLINE(NewSize)) { |
|
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1219 min_new = NewSize; |
|
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|
1220 } |
|
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1221 if (max_heap > min_new && min_heap_size() > min_new) { |
| 0 | 1222 // Unless explicitly requested otherwise, make young gen |
| 1223 // at least min_new, and at most preferred_max_new_size. | |
| 1224 if (FLAG_IS_DEFAULT(NewSize)) { | |
|
13
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1225 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
|
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1226 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
| 1064 | 1227 if (PrintGCDetails && Verbose) { |
|
13
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1228 // Too early to use gclog_or_tty |
|
2368
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1229 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
|
13
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1230 } |
| 0 | 1231 } |
| 1232 // Unless explicitly requested otherwise, size old gen | |
|
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1233 // so it's NewRatio x of NewSize. |
| 0 | 1234 if (FLAG_IS_DEFAULT(OldSize)) { |
| 1235 if (max_heap > NewSize) { | |
|
2368
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1236 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
| 1064 | 1237 if (PrintGCDetails && Verbose) { |
|
13
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1238 // Too early to use gclog_or_tty |
|
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1239 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
|
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1240 } |
| 0 | 1241 } |
| 1242 } | |
| 1243 } | |
| 1244 } | |
| 1245 // Unless explicitly requested otherwise, definitely | |
| 1246 // promote all objects surviving "tenuring_default" scavenges. | |
| 1247 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
| 1248 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 6818 | 1249 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
| 0 | 1250 } |
| 1251 // If we decided above (or user explicitly requested) | |
| 1252 // `promote all' (via MaxTenuringThreshold := 0), | |
| 1253 // prefer minuscule survivor spaces so as not to waste | |
| 1254 // space for (non-existent) survivors | |
| 1255 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
| 8035 | 1256 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
| 0 | 1257 } |
| 1258 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
| 1259 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
| 1260 // This is done in order to make ParNew+CMS configuration to work | |
| 1261 // with YoungPLABSize and OldPLABSize options. | |
| 1262 // See CR 6362902. | |
| 1263 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1264 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
|
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1265 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
|
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1266 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
|
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1267 // the value (either from the command line or ergonomics) of |
|
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1268 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
|
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1269 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
|
1145
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1270 } else { |
| 0 | 1271 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
| 1272 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
| 1273 // we'll let it to take precedence. | |
| 1274 jio_fprintf(defaultStream::error_stream(), | |
|
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1275 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
|
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1276 " options are specified for the CMS collector." |
|
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1277 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
| 0 | 1278 } |
| 1279 } | |
|
1145
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1280 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
|
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1281 // OldPLAB sizing manually turned off: Use a larger default setting, |
|
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1282 // unless it was manually specified. This is because a too-low value |
|
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1283 // will slow down scavenges. |
|
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1284 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
|
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1285 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
|
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1286 } |
|
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1287 } |
|
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1288 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
|
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1289 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
|
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1290 // If either of the static initialization defaults have changed, note this |
|
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|
1291 // modification. |
|
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1292 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
|
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|
1293 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
|
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1294 } |
| 1284 | 1295 if (PrintGCDetails && Verbose) { |
| 1296 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1297 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1298 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1299 } | |
| 0 | 1300 } |
|
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1301 #endif // INCLUDE_ALL_GCS |
| 0 | 1302 |
|
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1303 void set_object_alignment() { |
|
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1304 // Object alignment. |
|
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1305 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
|
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1306 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
|
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1307 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
|
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1308 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
|
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1309 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
|
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1310 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
|
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1311 |
|
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1312 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
|
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1313 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
|
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1314 |
|
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1315 // Oop encoding heap max |
|
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1316 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
|
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1317 |
|
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1318 #if INCLUDE_ALL_GCS |
|
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1319 // Set CMS global values |
|
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1320 CompactibleFreeListSpace::set_cms_values(); |
|
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1321 #endif // INCLUDE_ALL_GCS |
|
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1322 } |
|
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1323 |
|
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1324 bool verify_object_alignment() { |
|
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1325 // Object alignment. |
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1326 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
|
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1327 jio_fprintf(defaultStream::error_stream(), |
|
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1328 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
|
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1329 (int)ObjectAlignmentInBytes); |
|
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1330 return false; |
|
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1331 } |
|
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1332 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
|
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1333 jio_fprintf(defaultStream::error_stream(), |
|
1829
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1334 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
|
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1335 (int)ObjectAlignmentInBytes, BytesPerLong); |
|
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1336 return false; |
|
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1337 } |
|
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1338 // It does not make sense to have big object alignment |
|
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1339 // since a space lost due to alignment will be greater |
|
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1340 // then a saved space from compressed oops. |
|
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1341 if ((int)ObjectAlignmentInBytes > 256) { |
|
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1342 jio_fprintf(defaultStream::error_stream(), |
|
7461
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1343 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
|
1829
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1344 (int)ObjectAlignmentInBytes); |
|
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1345 return false; |
|
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1346 } |
|
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1347 // In case page size is very small. |
|
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1348 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
|
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1349 jio_fprintf(defaultStream::error_stream(), |
|
7461
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1350 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
|
1829
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|
1351 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
|
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1352 return false; |
|
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1353 } |
|
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1354 return true; |
|
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1355 } |
|
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1356 |
|
135
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1357 inline uintx max_heap_for_compressed_oops() { |
| 1963 | 1358 // Avoid sign flip. |
|
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1359 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
| 1963 | 1360 return 0; |
| 1361 } | |
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1362 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
| 1064 | 1363 NOT_LP64(ShouldNotReachHere(); return 0); |
|
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1364 } |
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1365 |
| 0 | 1366 bool Arguments::should_auto_select_low_pause_collector() { |
| 1367 if (UseAutoGCSelectPolicy && | |
| 1368 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
| 1369 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
| 1370 if (PrintGCDetails) { | |
| 1371 // Cannot use gclog_or_tty yet. | |
| 1372 tty->print_cr("Automatic selection of the low pause collector" | |
| 1373 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
| 1374 } | |
| 1375 return true; | |
| 1376 } | |
| 1377 return false; | |
| 1378 } | |
| 1379 | |
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1380 void Arguments::set_use_compressed_oops() { |
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1381 #ifndef ZERO |
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1382 #ifdef _LP64 |
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1383 // MaxHeapSize is not set up properly at this point, but |
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1384 // the only value that can override MaxHeapSize if we are |
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1385 // to use UseCompressedOops is InitialHeapSize. |
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1386 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1387 |
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1388 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1389 #if !defined(COMPILER1) || defined(TIERED) |
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1390 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1391 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1392 } |
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1393 #endif |
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1394 #ifdef _WIN64 |
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1395 if (UseLargePages && UseCompressedOops) { |
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1396 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1397 // mode, when large pages are specified on windows. |
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1398 // This flag could be switched ON if narrow oop base address is set to 0, |
|
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1399 // see code in Universe::initialize_heap(). |
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1400 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1401 } |
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1402 #endif // _WIN64 |
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1403 } else { |
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1404 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1405 warning("Max heap size too large for Compressed Oops"); |
|
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1406 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1407 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1408 } |
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1409 } |
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1410 #endif // _LP64 |
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1411 #endif // ZERO |
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1412 } |
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1413 |
| 0 | 1414 void Arguments::set_ergonomics_flags() { |
| 1415 | |
| 4946 | 1416 if (os::is_server_class_machine()) { |
| 0 | 1417 // If no other collector is requested explicitly, |
| 1418 // let the VM select the collector based on | |
| 1419 // machine class and automatic selection policy. | |
| 1420 if (!UseSerialGC && | |
| 1421 !UseConcMarkSweepGC && | |
|
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1422 !UseG1GC && |
| 0 | 1423 !UseParNewGC && |
| 1424 FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1425 if (should_auto_select_low_pause_collector()) { | |
| 1426 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
| 1427 } else { | |
| 1428 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
| 1429 } | |
|
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1430 } |
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1431 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1432 // to be disabled, which hurts interpreter performance and decreases |
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1433 // server performance. On server class machines, keep the default |
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1434 // off unless it is asked for. Future work: either add bytecode rewriting |
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1435 // at link time, or rewrite bytecodes in non-shared methods. |
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1436 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
| 0 | 1437 no_shared_spaces(); |
| 1438 } | |
| 1439 } | |
|
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1440 |
| 1010 | 1441 #ifndef ZERO |
|
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1442 #ifdef _LP64 |
|
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1443 set_use_compressed_oops(); |
|
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1444 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1445 if (!UseCompressedOops) { |
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1446 if (UseCompressedKlassPointers) { |
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1447 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1448 } |
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1449 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1450 } else { |
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1451 // Turn on UseCompressedKlassPointers too |
|
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1452 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
|
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1453 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
|
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1454 } |
|
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1455 // Set the ClassMetaspaceSize to something that will not need to be |
|
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1456 // expanded, since it cannot be expanded. |
|
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1457 if (UseCompressedKlassPointers) { |
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1458 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
|
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1459 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
|
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1460 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1461 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
|
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1462 // 100,000 classes seems like a good size, so 100M assumes around 1K |
|
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1463 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
|
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1464 // size per klass. Eventually, this will be parameterized because it |
|
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1465 // would also be useful to determine the optimal size of the |
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1466 // systemDictionary. |
|
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1467 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
|
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1468 } |
|
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1469 } |
|
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1470 } |
|
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1471 // Also checks that certain machines are slower with compressed oops |
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1472 // in vm_version initialization code. |
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1473 #endif // _LP64 |
| 1010 | 1474 #endif // !ZERO |
| 0 | 1475 } |
| 1476 | |
| 1477 void Arguments::set_parallel_gc_flags() { | |
|
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1478 assert(UseParallelGC || UseParallelOldGC, "Error"); |
| 4879 | 1479 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
| 1480 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
| 1481 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
| 0 | 1482 } |
| 4879 | 1483 FLAG_SET_DEFAULT(UseParallelGC, true); |
| 0 | 1484 |
| 1485 // If no heap maximum was requested explicitly, use some reasonable fraction | |
| 1486 // of the physical memory, up to a maximum of 1GB. | |
|
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1487 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1488 Abstract_VM_Version::parallel_worker_threads()); |
|
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1489 if (ParallelGCThreads == 0) { |
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1490 jio_fprintf(defaultStream::error_stream(), |
|
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1491 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
|
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1492 vm_exit(1); |
|
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1493 } |
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1494 |
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1495 |
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1496 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
|
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1497 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
|
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1498 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
|
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1499 // See CR 6362902 for details. |
|
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1500 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
|
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1501 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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1502 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
| 0 | 1503 } |
|
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1504 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
|
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1505 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
|
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1506 } |
|
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|
1507 } |
|
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|
1508 |
|
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|
1509 if (UseParallelOldGC) { |
|
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|
1510 // Par compact uses lower default values since they are treated as |
|
4c8bf5e55392
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|
1511 // minimums. These are different defaults because of the different |
|
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|
1512 // interpretation and are not ergonomically set. |
|
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|
1513 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
|
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|
1514 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
| 0 | 1515 } |
| 1516 } | |
| 1517 } | |
| 1518 | |
|
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1519 void Arguments::set_g1_gc_flags() { |
|
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|
1520 assert(UseG1GC, "Error"); |
|
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|
1521 #ifdef COMPILER1 |
|
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1522 FastTLABRefill = false; |
|
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|
1523 #endif |
|
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|
1524 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
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|
1525 Abstract_VM_Version::parallel_worker_threads()); |
|
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1526 if (ParallelGCThreads == 0) { |
|
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|
1527 FLAG_SET_DEFAULT(ParallelGCThreads, |
| 751 | 1528 Abstract_VM_Version::parallel_worker_threads()); |
|
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1529 } |
| 751 | 1530 |
|
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|
1531 // MarkStackSize will be set (if it hasn't been set by the user) |
|
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|
1532 // when concurrent marking is initialized. |
|
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|
1533 // Its value will be based upon the number of parallel marking threads. |
|
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|
1534 // But we do set the maximum mark stack size here. |
|
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|
1535 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
|
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|
1536 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
| 1284 | 1537 } |
| 1356 | 1538 |
| 1539 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
| 1540 // In G1, we want the default GC overhead goal to be higher than | |
| 1541 // say in PS. So we set it here to 10%. Otherwise the heap might | |
| 1542 // be expanded more aggressively than we would like it to. In | |
| 1543 // fact, even 10% seems to not be high enough in some cases | |
| 1544 // (especially small GC stress tests that the main thing they do | |
| 1545 // is allocation). We might consider increase it further. | |
| 1546 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
| 1547 } | |
|
7397
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|
1548 |
|
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|
1549 if (PrintGCDetails && Verbose) { |
|
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|
1550 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
|
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|
1551 MarkStackSize / K, MarkStackSizeMax / K); |
|
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|
1552 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
|
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|
1553 } |
|
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|
1554 } |
|
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|
1555 |
|
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|
1556 julong Arguments::limit_by_allocatable_memory(julong limit) { |
|
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|
1557 julong max_allocatable; |
|
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1558 julong result = limit; |
|
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|
1559 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
|
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|
1560 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
|
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|
1561 } |
|
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|
1562 return result; |
|
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|
1563 } |
|
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|
1564 |
| 1064 | 1565 void Arguments::set_heap_size() { |
| 1566 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
| 1567 // Deprecated flag | |
| 1568 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
| 1569 } | |
| 1570 | |
| 1571 const julong phys_mem = | |
| 1572 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
| 1573 : (julong)MaxRAM; | |
| 1574 | |
| 1575 // If the maximum heap size has not been set with -Xmx, | |
| 1576 // then set it as fraction of the size of physical memory, | |
| 1577 // respecting the maximum and minimum sizes of the heap. | |
|
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|
1578 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
| 1064 | 1579 julong reasonable_max = phys_mem / MaxRAMFraction; |
| 1580 | |
| 1581 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
| 1582 // Small physical memory, so use a minimum fraction of it for the heap | |
| 1583 reasonable_max = phys_mem / MinRAMFraction; | |
| 1584 } else { | |
| 1585 // Not-small physical memory, so require a heap at least | |
| 1586 // as large as MaxHeapSize | |
| 1587 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
| 1588 } | |
| 1589 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
| 1590 // Limit the heap size to ErgoHeapSizeLimit | |
| 1591 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
|
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|
1592 } |
| 1064 | 1593 if (UseCompressedOops) { |
| 1594 // Limit the heap size to the maximum possible when using compressed oops | |
| 1963 | 1595 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
| 1596 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
| 1597 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
| 1598 // but it should be not less than default MaxHeapSize. | |
| 1599 max_coop_heap -= HeapBaseMinAddress; | |
| 1600 } | |
| 1601 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
| 1064 | 1602 } |
|
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|
1603 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
| 1064 | 1604 |
| 1605 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
| 1606 // An initial heap size was specified on the command line, | |
| 1607 // so be sure that the maximum size is consistent. Done | |
|
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|
1608 // after call to limit_by_allocatable_memory because that |
| 1064 | 1609 // method might reduce the allocation size. |
| 1610 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
| 1611 } | |
| 1612 | |
|
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|
1613 if (PrintGCDetails && Verbose) { |
|
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|
1614 // Cannot use gclog_or_tty yet. |
| 1064 | 1615 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
|
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|
1616 } |
| 1064 | 1617 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
| 1618 } | |
| 1619 | |
| 1620 // If the initial_heap_size has not been set with InitialHeapSize | |
| 1621 // or -Xms, then set it as fraction of the size of physical memory, | |
| 1622 // respecting the maximum and minimum sizes of the heap. | |
| 1623 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
|
1074
84cb6f20afb3
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1069
diff
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|
1624 julong reasonable_minimum = (julong)(OldSize + NewSize); |
|
84cb6f20afb3
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|
1625 |
|
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diff
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|
1626 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
|
84cb6f20afb3
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|
1627 |
|
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|
1628 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
|
1074
84cb6f20afb3
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|
1629 |
| 1064 | 1630 julong reasonable_initial = phys_mem / InitialRAMFraction; |
| 1631 | |
|
1074
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|
1632 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
| 1064 | 1633 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1634 | |
|
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|
1635 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
| 1064 | 1636 |
| 1637 if (PrintGCDetails && Verbose) { | |
| 1638 // Cannot use gclog_or_tty yet. | |
| 1639 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
|
1074
84cb6f20afb3
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|
1640 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
|
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|
1641 } |
| 1064 | 1642 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
|
1074
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|
1643 set_min_heap_size((uintx)reasonable_minimum); |
|
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|
1644 } |
|
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|
1645 } |
|
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|
1646 |
| 0 | 1647 // This must be called after ergonomics because we want bytecode rewriting |
| 1648 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
| 1649 void Arguments::set_bytecode_flags() { | |
| 1650 // Better not attempt to store into a read-only space. | |
| 1651 if (UseSharedSpaces) { | |
| 1652 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
| 1653 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1654 } | |
| 1655 | |
| 1656 if (!RewriteBytecodes) { | |
| 1657 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1658 } | |
| 1659 } | |
| 1660 | |
| 1661 // Aggressive optimization flags -XX:+AggressiveOpts | |
| 1662 void Arguments::set_aggressive_opts_flags() { | |
|
17
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6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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|
1663 #ifdef COMPILER2 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
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|
1664 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1665 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1666 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
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|
1667 } |
|
ff5961f4c095
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0
diff
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|
1668 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
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0
diff
changeset
|
1669 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
|
ff5961f4c095
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0
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|
1670 } |
|
ff5961f4c095
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0
diff
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|
1671 |
|
ff5961f4c095
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0
diff
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|
1672 // Feed the cache size setting into the JDK |
|
ff5961f4c095
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0
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|
1673 char buffer[1024]; |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
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489
diff
changeset
|
1674 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
|
17
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0
diff
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|
1675 add_property(buffer); |
|
ff5961f4c095
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0
diff
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|
1676 } |
|
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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|
1677 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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363
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|
1678 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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363
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|
1679 } |
|
17
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|
1680 #endif |
|
ff5961f4c095
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0
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|
1681 |
| 0 | 1682 if (AggressiveOpts) { |
| 61 | 1683 // Sample flag setting code |
| 1684 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
| 1685 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
| 1686 // } | |
| 0 | 1687 } |
| 1688 } | |
| 1689 | |
| 1690 //=========================================================================================================== | |
| 1691 // Parsing of java.compiler property | |
| 1692 | |
| 1693 void Arguments::process_java_compiler_argument(char* arg) { | |
| 1694 // For backwards compatibility, Djava.compiler=NONE or "" | |
| 1695 // causes us to switch to -Xint mode UNLESS -Xdebug | |
| 1696 // is also specified. | |
| 1697 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
| 1698 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
| 1699 } | |
| 1700 } | |
| 1701 | |
| 1702 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
| 1703 _sun_java_launcher = strdup(launcher); | |
|
2302
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2243
diff
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|
1704 if (strcmp("gamma", _sun_java_launcher) == 0) { |
|
da091bb67459
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diff
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|
1705 _created_by_gamma_launcher = true; |
|
da091bb67459
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|
1706 } |
| 0 | 1707 } |
| 1708 | |
| 1709 bool Arguments::created_by_java_launcher() { | |
| 1710 assert(_sun_java_launcher != NULL, "property must have value"); | |
| 1711 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
| 1712 } | |
| 1713 | |
|
2302
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|
1714 bool Arguments::created_by_gamma_launcher() { |
|
da091bb67459
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diff
changeset
|
1715 return _created_by_gamma_launcher; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1716 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1717 |
| 0 | 1718 //=========================================================================================================== |
| 1719 // Parsing of main arguments | |
| 1720 | |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1721 bool Arguments::verify_interval(uintx val, uintx min, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1722 uintx max, const char* name) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1723 // Returns true iff value is in the inclusive interval [min..max] |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1724 // false, otherwise. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1725 if (val >= min && val <= max) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1726 return true; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1727 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1728 jio_fprintf(defaultStream::error_stream(), |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1729 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1730 " and " UINTX_FORMAT "\n", |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1731 name, val, min, max); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1732 return false; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1733 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1734 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1735 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.
jwilhelm
parents:
2362
diff
changeset
|
1736 // Returns true if given value is at least specified min threshold |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1737 // false, otherwise. |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1738 if (val >= min ) { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1739 return true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1740 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1741 jio_fprintf(defaultStream::error_stream(), |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1742 "%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
ptisnovs
parents:
1681
diff
changeset
|
1743 name, val, min); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1744 return false; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1745 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1746 |
| 0 | 1747 bool Arguments::verify_percentage(uintx value, const char* name) { |
| 1748 if (value <= 100) { | |
| 1749 return true; | |
| 1750 } | |
| 1751 jio_fprintf(defaultStream::error_stream(), | |
| 1752 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
| 1753 name, value); | |
| 1754 return false; | |
| 1755 } | |
| 1756 | |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1757 #if !INCLUDE_ALL_GCS |
|
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1758 #ifdef ASSERT |
| 0 | 1759 static bool verify_serial_gc_flags() { |
| 1760 return (UseSerialGC && | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1761 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1762 UseParallelGC || UseParallelOldGC)); |
| 0 | 1763 } |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1764 #endif // ASSERT |
|
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1765 #endif // INCLUDE_ALL_GCS |
| 0 | 1766 |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1767 // check if do gclog rotation |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1768 // +UseGCLogFileRotation is a must, |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1769 // no gc log rotation when log file not supplied or |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1770 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1771 void check_gclog_consistency() { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1772 if (UseGCLogFileRotation) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1773 if ((Arguments::gc_log_filename() == NULL) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1774 (NumberOfGCLogFiles == 0) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1775 (GCLogFileSize == 0)) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1776 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
|
1777 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1778 "where num_of_file > 0 and num_of_size > 0\n" |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1779 "GC log rotation is turned off\n"); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1780 UseGCLogFileRotation = false; |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1781 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1782 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1783 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1784 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1785 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1786 jio_fprintf(defaultStream::output_stream(), |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1787 "GCLogFileSize changed to minimum 8K\n"); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1788 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1789 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1790 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1791 // Check consistency of GC selection |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1792 bool Arguments::check_gc_consistency() { |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1793 check_gclog_consistency(); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1794 bool status = true; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1795 // Ensure that the user has not selected conflicting sets |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1796 // of collectors. [Note: this check is merely a user convenience; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1797 // collectors over-ride each other so that only a non-conflicting |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1798 // set is selected; however what the user gets is not what they |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1799 // may have expected from the combination they asked for. It's |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1800 // better to reduce user confusion by not allowing them to |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1801 // select conflicting combinations. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1802 uint i = 0; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1803 if (UseSerialGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1804 if (UseConcMarkSweepGC || UseParNewGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1805 if (UseParallelGC || UseParallelOldGC) i++; |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1806 if (UseG1GC) i++; |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1807 if (i > 1) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1808 jio_fprintf(defaultStream::error_stream(), |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1809 "Conflicting collector combinations in option list; " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1810 "please refer to the release notes for the combinations " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1811 "allowed\n"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1812 status = false; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1813 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1814 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1815 return status; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1816 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1817 |
|
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1818 void Arguments::check_deprecated_gcs() { |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1819 if (UseConcMarkSweepGC && !UseParNewGC) { |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1820 warning("Using the DefNew young collector with the CMS collector is deprecated " |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1821 "and will likely be removed in a future release"); |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1822 } |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1823 |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1824 if (UseParNewGC && !UseConcMarkSweepGC) { |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1825 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1826 // set up UseSerialGC properly, so that can't be used in the check here. |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1827 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1828 "and will likely be removed in a future release"); |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1829 } |
| 7453 | 1830 |
| 1831 if (CMSIncrementalMode) { | |
| 1832 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
| 1833 } | |
|
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1834 } |
|
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1835 |
| 8734 | 1836 void Arguments::check_deprecated_gc_flags() { |
| 1837 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
| 1838 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
| 1839 "and will likely be removed in future release"); | |
| 1840 } | |
| 1841 } | |
| 1842 | |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1843 // Check stack pages settings |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1844 bool Arguments::check_stack_pages() |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1845 { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1846 bool status = true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1847 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1848 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1849 // greater stack shadow pages can't generate instruction to bang stack |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
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|
1850 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
|
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1851 return status; |
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1852 } |
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1853 |
| 0 | 1854 // Check the consistency of vm_init_args |
| 1855 bool Arguments::check_vm_args_consistency() { | |
| 1856 // Method for adding checks for flag consistency. | |
| 1857 // The intent is to warn the user of all possible conflicts, | |
| 1858 // before returning an error. | |
| 1859 // Note: Needs platform-dependent factoring. | |
| 1860 bool status = true; | |
| 1861 | |
| 1862 #if ( (defined(COMPILER2) && defined(SPARC))) | |
| 1863 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
| 1864 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
| 1865 // x86. Normally, VM_Version_init must be called from init_globals in | |
| 1866 // init.cpp, which is called by the initial java thread *after* arguments | |
| 1867 // have been parsed. VM_Version_init gets called twice on sparc. | |
| 1868 extern void VM_Version_init(); | |
| 1869 VM_Version_init(); | |
| 1870 if (!VM_Version::has_v9()) { | |
| 1871 jio_fprintf(defaultStream::error_stream(), | |
| 1872 "V8 Machine detected, Server requires V9\n"); | |
| 1873 status = false; | |
| 1874 } | |
| 1875 #endif /* COMPILER2 && SPARC */ | |
| 1876 | |
| 1877 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
| 1878 // builds so the cost of stack banging can be measured. | |
| 1879 #if (defined(PRODUCT) && defined(SOLARIS)) | |
| 1880 if (!UseBoundThreads && !UseStackBanging) { | |
| 1881 jio_fprintf(defaultStream::error_stream(), | |
| 1882 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
| 1883 | |
| 1884 status = false; | |
| 1885 } | |
| 1886 #endif | |
| 1887 | |
| 1888 if (TLABRefillWasteFraction == 0) { | |
| 1889 jio_fprintf(defaultStream::error_stream(), | |
| 1890 "TLABRefillWasteFraction should be a denominator, " | |
| 1891 "not " SIZE_FORMAT "\n", | |
| 1892 TLABRefillWasteFraction); | |
| 1893 status = false; | |
| 1894 } | |
| 1895 | |
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1896 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
| 0 | 1897 "AdaptiveSizePolicyWeight"); |
|
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1898 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1899 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1900 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
| 0 | 1901 |
|
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1902 // Divide by bucket size to prevent a large size from causing rollover when |
|
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1903 // calculating amount of memory needed to be allocated for the String table. |
|
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1904 status = status && verify_interval(StringTableSize, defaultStringTableSize, |
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1905 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1906 |
| 0 | 1907 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
| 1908 jio_fprintf(defaultStream::error_stream(), | |
| 1909 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
| 1910 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
| 1911 MinHeapFreeRatio, MaxHeapFreeRatio); | |
| 1912 status = false; | |
| 1913 } | |
| 1914 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
| 1915 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
| 1916 | |
|
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1917 // Min/MaxMetaspaceFreeRatio |
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1918 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1919 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1920 |
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1921 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1922 jio_fprintf(defaultStream::error_stream(), |
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1923 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1924 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1925 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1926 MinMetaspaceFreeRatio, |
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1927 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1928 MaxMetaspaceFreeRatio); |
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1929 status = false; |
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1930 } |
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1931 |
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1932 // Trying to keep 100% free is not practical |
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1933 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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1934 |
| 0 | 1935 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
| 1936 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
| 1937 } | |
| 1938 | |
|
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1939 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
|
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1940 // Settings to encourage splitting. |
|
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1941 if (!FLAG_IS_CMDLINE(NewRatio)) { |
| 8035 | 1942 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
|
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1943 } |
|
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1944 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
|
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1945 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
|
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1946 } |
|
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1947 } |
|
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1948 |
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1949 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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1950 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
| 0 | 1951 if (GCTimeLimit == 100) { |
| 1952 // Turn off gc-overhead-limit-exceeded checks | |
| 1953 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
| 1954 } | |
| 1955 | |
|
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1956 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
| 0 | 1957 |
|
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1958 status = status && check_gc_consistency(); |
|
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1959 status = status && check_stack_pages(); |
| 0 | 1960 |
| 1961 if (_has_alloc_profile) { | |
| 1962 if (UseParallelGC || UseParallelOldGC) { | |
| 1963 jio_fprintf(defaultStream::error_stream(), | |
| 1964 "error: invalid argument combination.\n" | |
| 1965 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1966 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
| 1967 status = false; | |
| 1968 } | |
| 1969 if (UseConcMarkSweepGC) { | |
| 1970 jio_fprintf(defaultStream::error_stream(), | |
| 1971 "error: invalid argument combination.\n" | |
| 1972 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1973 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
| 1974 status = false; | |
| 1975 } | |
| 1976 } | |
| 1977 | |
| 1978 if (CMSIncrementalMode) { | |
| 1979 if (!UseConcMarkSweepGC) { | |
| 1980 jio_fprintf(defaultStream::error_stream(), | |
| 1981 "error: invalid argument combination.\n" | |
| 1982 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
| 1983 "selected in order\nto use CMSIncrementalMode.\n"); | |
| 1984 status = false; | |
| 1985 } else { | |
|
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1986 status = status && verify_percentage(CMSIncrementalDutyCycle, |
| 0 | 1987 "CMSIncrementalDutyCycle"); |
|
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1988 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
| 0 | 1989 "CMSIncrementalDutyCycleMin"); |
|
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1990 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
| 0 | 1991 "CMSIncrementalSafetyFactor"); |
|
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1992 status = status && verify_percentage(CMSIncrementalOffset, |
| 0 | 1993 "CMSIncrementalOffset"); |
|
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1994 status = status && verify_percentage(CMSExpAvgFactor, |
| 0 | 1995 "CMSExpAvgFactor"); |
| 1996 // If it was not set on the command line, set | |
| 1997 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
| 1998 if (CMSInitiatingOccupancyFraction < 0) { | |
| 1999 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
| 2000 } | |
| 2001 } | |
| 2002 } | |
| 2003 | |
| 2004 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
| 2005 // insists that we hold the requisite locks so that the iteration is | |
| 2006 // MT-safe. For the verification at start-up and shut-down, we don't | |
| 2007 // yet have a good way of acquiring and releasing these locks, | |
| 2008 // which are not visible at the CollectedHeap level. We want to | |
| 2009 // be able to acquire these locks and then do the iteration rather | |
| 2010 // than just disable the lock verification. This will be fixed under | |
| 2011 // bug 4788986. | |
| 2012 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
|
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2013 if (VerifyDuringStartup) { |
| 0 | 2014 warning("Heap verification at start-up disabled " |
| 2015 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
|
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2016 VerifyDuringStartup = false; // Disable verification at start-up |
| 0 | 2017 } |
|
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2018 |
| 0 | 2019 if (VerifyBeforeExit) { |
| 2020 warning("Heap verification at shutdown disabled " | |
| 2021 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 2022 VerifyBeforeExit = false; // Disable verification at shutdown | |
| 2023 } | |
| 2024 } | |
| 2025 | |
| 2026 // Note: only executed in non-PRODUCT mode | |
| 2027 if (!UseAsyncConcMarkSweepGC && | |
| 2028 (ExplicitGCInvokesConcurrent || | |
| 2029 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
| 2030 jio_fprintf(defaultStream::error_stream(), | |
|
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2031 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
| 0 | 2032 " with -UseAsyncConcMarkSweepGC"); |
| 2033 status = false; | |
| 2034 } | |
| 2035 | |
|
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|
2036 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
|
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2037 |
|
8001
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2038 #if INCLUDE_ALL_GCS |
|
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2039 if (UseG1GC) { |
|
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2040 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
|
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|
2041 "InitiatingHeapOccupancyPercent"); |
|
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2042 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
|
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2043 "G1RefProcDrainInterval"); |
|
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2044 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
|
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2045 "G1ConcMarkStepDurationMillis"); |
|
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2046 } |
|
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2047 #endif // INCLUDE_ALL_GCS |
|
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2048 |
|
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2049 status = status && verify_interval(RefDiscoveryPolicy, |
|
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2050 ReferenceProcessor::DiscoveryPolicyMin, |
|
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|
2051 ReferenceProcessor::DiscoveryPolicyMax, |
|
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|
2052 "RefDiscoveryPolicy"); |
|
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2053 |
|
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2054 // Limit the lower bound of this flag to 1 as it is used in a division |
|
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2055 // expression. |
|
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2056 status = status && verify_interval(TLABWasteTargetPercent, |
|
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2057 1, 100, "TLABWasteTargetPercent"); |
|
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2058 |
|
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2059 status = status && verify_object_alignment(); |
|
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2060 |
|
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2061 status = status && verify_min_value(ClassMetaspaceSize, 1*M, |
|
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2062 "ClassMetaspaceSize"); |
|
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2063 |
|
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2064 status = status && verify_interval(MarkStackSizeMax, |
|
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2065 1, (max_jint - 1), "MarkStackSizeMax"); |
|
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|
2066 |
|
6755
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|
2067 #ifdef SPARC |
|
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|
2068 if (UseConcMarkSweepGC || UseG1GC) { |
|
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|
2069 // Issue a stern warning if the user has explicitly set |
|
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|
2070 // UseMemSetInBOT (it is known to cause issues), but allow |
|
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|
2071 // use for experimentation and debugging. |
|
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|
2072 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
|
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|
2073 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
|
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|
2074 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
|
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|
2075 " on sun4v; please understand that you are using at your own risk!"); |
|
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|
2076 } |
|
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|
2077 } |
|
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|
2078 #endif // SPARC |
|
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|
2079 |
|
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|
2080 if (PrintNMTStatistics) { |
|
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|
2081 #if INCLUDE_NMT |
|
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|
2082 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
|
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2083 #endif // INCLUDE_NMT |
|
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|
2084 warning("PrintNMTStatistics is disabled, because native memory tracking is not enabled"); |
|
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|
2085 PrintNMTStatistics = false; |
|
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|
2086 #if INCLUDE_NMT |
|
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|
2087 } |
|
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|
2088 #endif |
|
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|
2089 } |
|
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|
2090 |
| 0 | 2091 return status; |
| 2092 } | |
| 2093 | |
| 2094 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
| 2095 const char* option_type) { | |
| 2096 if (ignore) return false; | |
| 2097 | |
| 2098 const char* spacer = " "; | |
| 2099 if (option_type == NULL) { | |
| 2100 option_type = ++spacer; // Set both to the empty string. | |
| 2101 } | |
| 2102 | |
| 2103 if (os::obsolete_option(option)) { | |
| 2104 jio_fprintf(defaultStream::error_stream(), | |
| 2105 "Obsolete %s%soption: %s\n", option_type, spacer, | |
| 2106 option->optionString); | |
| 2107 return false; | |
| 2108 } else { | |
| 2109 jio_fprintf(defaultStream::error_stream(), | |
| 2110 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
| 2111 option->optionString); | |
| 2112 return true; | |
| 2113 } | |
| 2114 } | |
| 2115 | |
| 2116 static const char* user_assertion_options[] = { | |
| 2117 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
| 2118 }; | |
| 2119 | |
| 2120 static const char* system_assertion_options[] = { | |
| 2121 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
| 2122 }; | |
| 2123 | |
| 2124 // Return true if any of the strings in null-terminated array 'names' matches. | |
| 2125 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
| 2126 // the option must match exactly. | |
| 2127 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
| 2128 bool tail_allowed) { | |
| 2129 for (/* empty */; *names != NULL; ++names) { | |
| 2130 if (match_option(option, *names, tail)) { | |
| 2131 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
| 2132 return true; | |
| 2133 } | |
| 2134 } | |
| 2135 } | |
| 2136 return false; | |
| 2137 } | |
| 2138 | |
| 1284 | 2139 bool Arguments::parse_uintx(const char* value, |
| 2140 uintx* uintx_arg, | |
| 2141 uintx min_size) { | |
| 2142 | |
| 2143 // Check the sign first since atomull() parses only unsigned values. | |
| 2144 bool value_is_positive = !(*value == '-'); | |
| 2145 | |
| 2146 if (value_is_positive) { | |
| 2147 julong n; | |
| 2148 bool good_return = atomull(value, &n); | |
| 2149 if (good_return) { | |
| 2150 bool above_minimum = n >= min_size; | |
| 2151 bool value_is_too_large = n > max_uintx; | |
| 2152 | |
| 2153 if (above_minimum && !value_is_too_large) { | |
| 2154 *uintx_arg = n; | |
| 2155 return true; | |
| 2156 } | |
| 2157 } | |
| 2158 } | |
| 2159 return false; | |
| 2160 } | |
| 2161 | |
| 0 | 2162 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
|
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|
2163 julong* long_arg, |
|
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|
2164 julong min_size) { |
|
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|
2165 if (!atomull(s, long_arg)) return arg_unreadable; |
| 0 | 2166 return check_memory_size(*long_arg, min_size); |
| 2167 } | |
| 2168 | |
| 2169 // Parse JavaVMInitArgs structure | |
| 2170 | |
| 2171 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
| 2172 // For components of the system classpath. | |
| 2173 SysClassPath scp(Arguments::get_sysclasspath()); | |
| 2174 bool scp_assembly_required = false; | |
| 2175 | |
| 2176 // Save default settings for some mode flags | |
| 2177 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 2178 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 2179 Arguments::_ClipInlining = ClipInlining; | |
| 2180 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 2181 | |
|
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2182 // Setup flags for mixed which is the default |
|
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|
2183 set_mode_flags(_mixed); |
|
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2184 |
| 0 | 2185 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
| 2186 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
| 2187 if (result != JNI_OK) { | |
| 2188 return result; | |
| 2189 } | |
| 2190 | |
| 2191 // Parse JavaVMInitArgs structure passed in | |
| 2192 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
| 2193 if (result != JNI_OK) { | |
| 2194 return result; | |
| 2195 } | |
| 2196 | |
|
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2197 if (AggressiveOpts) { |
|
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|
2198 // Insert alt-rt.jar between user-specified bootclasspath |
|
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2199 // prefix and the default bootclasspath. os::set_boot_path() |
|
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|
2200 // uses meta_index_dir as the default bootclasspath directory. |
|
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|
2201 const char* altclasses_jar = "alt-rt.jar"; |
|
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|
2202 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
|
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|
2203 strlen(altclasses_jar); |
| 6197 | 2204 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
|
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|
2205 strcpy(altclasses_path, get_meta_index_dir()); |
|
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|
2206 strcat(altclasses_path, altclasses_jar); |
|
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|
2207 scp.add_suffix_to_prefix(altclasses_path); |
|
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|
2208 scp_assembly_required = true; |
| 6197 | 2209 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
|
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|
2210 } |
|
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|
2211 |
| 0 | 2212 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
| 2213 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
| 2214 if (result != JNI_OK) { | |
| 2215 return result; | |
| 2216 } | |
| 2217 | |
| 2218 // Do final processing now that all arguments have been parsed | |
| 2219 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
| 2220 if (result != JNI_OK) { | |
| 2221 return result; | |
| 2222 } | |
| 2223 | |
| 2224 return JNI_OK; | |
| 2225 } | |
| 2226 | |
| 2227 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
| 2228 SysClassPath* scp_p, | |
| 2229 bool* scp_assembly_required_p, | |
| 2230 FlagValueOrigin origin) { | |
| 2231 // Remaining part of option string | |
| 2232 const char* tail; | |
| 2233 | |
| 2234 // iterate over arguments | |
| 2235 for (int index = 0; index < args->nOptions; index++) { | |
| 2236 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
| 2237 | |
| 2238 const JavaVMOption* option = args->options + index; | |
| 2239 | |
| 2240 if (!match_option(option, "-Djava.class.path", &tail) && | |
| 2241 !match_option(option, "-Dsun.java.command", &tail) && | |
| 2242 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
| 2243 | |
| 2244 // add all jvm options to the jvm_args string. This string | |
| 2245 // is used later to set the java.vm.args PerfData string constant. | |
| 2246 // the -Djava.class.path and the -Dsun.java.command options are | |
| 2247 // omitted from jvm_args string as each have their own PerfData | |
| 2248 // string constant object. | |
| 2249 build_jvm_args(option->optionString); | |
| 2250 } | |
| 2251 | |
| 2252 // -verbose:[class/gc/jni] | |
| 2253 if (match_option(option, "-verbose", &tail)) { | |
| 2254 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
| 2255 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
| 2256 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2257 } else if (!strcmp(tail, ":gc")) { | |
| 2258 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2259 } else if (!strcmp(tail, ":jni")) { | |
| 2260 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
| 2261 } | |
| 2262 // -da / -ea / -disableassertions / -enableassertions | |
| 2263 // These accept an optional class/package name separated by a colon, e.g., | |
| 2264 // -da:java.lang.Thread. | |
| 2265 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
| 2266 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2267 if (*tail == '\0') { | |
| 2268 JavaAssertions::setUserClassDefault(enable); | |
| 2269 } else { | |
| 2270 assert(*tail == ':', "bogus match by match_option()"); | |
| 2271 JavaAssertions::addOption(tail + 1, enable); | |
| 2272 } | |
| 2273 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
| 2274 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
| 2275 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2276 JavaAssertions::setSystemClassDefault(enable); | |
| 2277 // -bootclasspath: | |
| 2278 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
| 2279 scp_p->reset_path(tail); | |
| 2280 *scp_assembly_required_p = true; | |
| 2281 // -bootclasspath/a: | |
| 2282 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
| 2283 scp_p->add_suffix(tail); | |
| 2284 *scp_assembly_required_p = true; | |
| 2285 // -bootclasspath/p: | |
| 2286 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
| 2287 scp_p->add_prefix(tail); | |
| 2288 *scp_assembly_required_p = true; | |
| 2289 // -Xrun | |
| 2290 } else if (match_option(option, "-Xrun", &tail)) { | |
|
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|
2291 if (tail != NULL) { |
| 0 | 2292 const char* pos = strchr(tail, ':'); |
| 2293 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2294 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2295 name[len] = '\0'; |
| 2296 | |
| 2297 char *options = NULL; | |
| 2298 if(pos != NULL) { | |
| 2299 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
| 6197 | 2300 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
| 0 | 2301 } |
|
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2302 #if !INCLUDE_JVMTI |
| 0 | 2303 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
|
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2304 jio_fprintf(defaultStream::error_stream(), |
|
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|
2305 "Profiling and debugging agents are not supported in this VM\n"); |
|
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|
2306 return JNI_ERR; |
|
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|
2307 } |
|
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|
2308 #endif // !INCLUDE_JVMTI |
|
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|
2309 add_init_library(name, options); |
| 0 | 2310 } |
| 2311 // -agentlib and -agentpath | |
| 2312 } else if (match_option(option, "-agentlib:", &tail) || | |
| 2313 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
| 2314 if(tail != NULL) { | |
| 2315 const char* pos = strchr(tail, '='); | |
| 2316 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2317 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2318 name[len] = '\0'; |
| 2319 | |
| 2320 char *options = NULL; | |
| 2321 if(pos != NULL) { | |
| 6197 | 2322 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
| 0 | 2323 } |
|
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|
2324 #if !INCLUDE_JVMTI |
| 0 | 2325 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
|
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|
2326 jio_fprintf(defaultStream::error_stream(), |
|
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|
2327 "Profiling and debugging agents are not supported in this VM\n"); |
|
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|
2328 return JNI_ERR; |
|
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|
2329 } |
|
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|
2330 #endif // !INCLUDE_JVMTI |
| 0 | 2331 add_init_agent(name, options, is_absolute_path); |
| 2332 } | |
| 2333 // -javaagent | |
| 2334 } else if (match_option(option, "-javaagent:", &tail)) { | |
|
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|
2335 #if !INCLUDE_JVMTI |
|
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2336 jio_fprintf(defaultStream::error_stream(), |
|
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|
2337 "Instrumentation agents are not supported in this VM\n"); |
|
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2338 return JNI_ERR; |
|
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|
2339 #else |
| 0 | 2340 if(tail != NULL) { |
| 6197 | 2341 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
| 0 | 2342 add_init_agent("instrument", options, false); |
| 2343 } | |
|
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2344 #endif // !INCLUDE_JVMTI |
| 0 | 2345 // -Xnoclassgc |
| 2346 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
| 2347 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
| 2348 // -Xincgc: i-CMS | |
| 2349 } else if (match_option(option, "-Xincgc", &tail)) { | |
| 2350 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2351 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
| 2352 // -Xnoincgc: no i-CMS | |
| 2353 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
| 2354 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2355 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
| 2356 // -Xconcgc | |
| 2357 } else if (match_option(option, "-Xconcgc", &tail)) { | |
| 2358 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2359 // -Xnoconcgc | |
| 2360 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
| 2361 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2362 // -Xbatch | |
| 2363 } else if (match_option(option, "-Xbatch", &tail)) { | |
| 2364 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2365 // -Xmn for compatibility with other JVM vendors | |
| 2366 } else if (match_option(option, "-Xmn", &tail)) { | |
|
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|
2367 julong long_initial_eden_size = 0; |
| 0 | 2368 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
| 2369 if (errcode != arg_in_range) { | |
| 2370 jio_fprintf(defaultStream::error_stream(), | |
| 2371 "Invalid initial eden size: %s\n", option->optionString); | |
| 2372 describe_range_error(errcode); | |
| 2373 return JNI_EINVAL; | |
| 2374 } | |
| 1064 | 2375 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
| 2376 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
| 0 | 2377 // -Xms |
| 2378 } else if (match_option(option, "-Xms", &tail)) { | |
|
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|
2379 julong long_initial_heap_size = 0; |
| 0 | 2380 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
| 2381 if (errcode != arg_in_range) { | |
| 2382 jio_fprintf(defaultStream::error_stream(), | |
| 2383 "Invalid initial heap size: %s\n", option->optionString); | |
| 2384 describe_range_error(errcode); | |
| 2385 return JNI_EINVAL; | |
| 2386 } | |
| 1064 | 2387 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
| 0 | 2388 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2389 set_min_heap_size(InitialHeapSize); |
| 0 | 2390 // -Xmx |
| 2391 } else if (match_option(option, "-Xmx", &tail)) { | |
|
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|
2392 julong long_max_heap_size = 0; |
| 0 | 2393 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2394 if (errcode != arg_in_range) { | |
| 2395 jio_fprintf(defaultStream::error_stream(), | |
| 2396 "Invalid maximum heap size: %s\n", option->optionString); | |
| 2397 describe_range_error(errcode); | |
| 2398 return JNI_EINVAL; | |
| 2399 } | |
| 1064 | 2400 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
| 0 | 2401 // Xmaxf |
| 2402 } else if (match_option(option, "-Xmaxf", &tail)) { | |
| 2403 int maxf = (int)(atof(tail) * 100); | |
| 2404 if (maxf < 0 || maxf > 100) { | |
| 2405 jio_fprintf(defaultStream::error_stream(), | |
| 2406 "Bad max heap free percentage size: %s\n", | |
| 2407 option->optionString); | |
| 2408 return JNI_EINVAL; | |
| 2409 } else { | |
| 2410 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
| 2411 } | |
| 2412 // Xminf | |
| 2413 } else if (match_option(option, "-Xminf", &tail)) { | |
| 2414 int minf = (int)(atof(tail) * 100); | |
| 2415 if (minf < 0 || minf > 100) { | |
| 2416 jio_fprintf(defaultStream::error_stream(), | |
| 2417 "Bad min heap free percentage size: %s\n", | |
| 2418 option->optionString); | |
| 2419 return JNI_EINVAL; | |
| 2420 } else { | |
| 2421 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
| 2422 } | |
| 2423 // -Xss | |
| 2424 } else if (match_option(option, "-Xss", &tail)) { | |
|
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|
2425 julong long_ThreadStackSize = 0; |
| 0 | 2426 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
| 2427 if (errcode != arg_in_range) { | |
| 2428 jio_fprintf(defaultStream::error_stream(), | |
| 2429 "Invalid thread stack size: %s\n", option->optionString); | |
| 2430 describe_range_error(errcode); | |
| 2431 return JNI_EINVAL; | |
| 2432 } | |
| 2433 // Internally track ThreadStackSize in units of 1024 bytes. | |
| 2434 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
| 2435 round_to((int)long_ThreadStackSize, K) / K); | |
| 2436 // -Xoss | |
| 2437 } else if (match_option(option, "-Xoss", &tail)) { | |
| 2438 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
| 2439 // -Xmaxjitcodesize | |
|
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diff
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|
2440 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
|
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|
2441 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
|
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|
2442 julong long_ReservedCodeCacheSize = 0; |
| 0 | 2443 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
|
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|
2444 (size_t)InitialCodeCacheSize); |
| 0 | 2445 if (errcode != arg_in_range) { |
| 2446 jio_fprintf(defaultStream::error_stream(), | |
|
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|
2447 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
|
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|
2448 option->optionString, InitialCodeCacheSize/K); |
| 0 | 2449 describe_range_error(errcode); |
| 2450 return JNI_EINVAL; | |
| 2451 } | |
| 2452 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
| 2453 // -green | |
| 2454 } else if (match_option(option, "-green", &tail)) { | |
| 2455 jio_fprintf(defaultStream::error_stream(), | |
| 2456 "Green threads support not available\n"); | |
| 2457 return JNI_EINVAL; | |
| 2458 // -native | |
| 2459 } else if (match_option(option, "-native", &tail)) { | |
| 2460 // HotSpot always uses native threads, ignore silently for compatibility | |
| 2461 // -Xsqnopause | |
| 2462 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
| 2463 // EVM option, ignore silently for compatibility | |
| 2464 // -Xrs | |
| 2465 } else if (match_option(option, "-Xrs", &tail)) { | |
| 2466 // Classic/EVM option, new functionality | |
| 2467 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
| 2468 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
| 2469 // change default internal VM signals used - lower case for back compat | |
| 2470 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
| 2471 // -Xoptimize | |
| 2472 } else if (match_option(option, "-Xoptimize", &tail)) { | |
| 2473 // EVM option, ignore silently for compatibility | |
| 2474 // -Xprof | |
| 2475 } else if (match_option(option, "-Xprof", &tail)) { | |
|
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|
2476 #if INCLUDE_FPROF |
| 0 | 2477 _has_profile = true; |
|
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|
2478 #else // INCLUDE_FPROF |
|
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|
2479 jio_fprintf(defaultStream::error_stream(), |
|
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|
2480 "Flat profiling is not supported in this VM.\n"); |
|
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|
2481 return JNI_ERR; |
|
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|
2482 #endif // INCLUDE_FPROF |
| 0 | 2483 // -Xaprof |
| 2484 } else if (match_option(option, "-Xaprof", &tail)) { | |
| 2485 _has_alloc_profile = true; | |
| 2486 // -Xconcurrentio | |
| 2487 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
| 2488 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
| 2489 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2490 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
| 2491 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2492 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
| 2493 | |
| 2494 // -Xinternalversion | |
| 2495 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
| 2496 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
| 2497 VM_Version::internal_vm_info_string()); | |
| 2498 vm_exit(0); | |
| 2499 #ifndef PRODUCT | |
| 2500 // -Xprintflags | |
| 2501 } else if (match_option(option, "-Xprintflags", &tail)) { | |
| 4773 | 2502 CommandLineFlags::printFlags(tty, false); |
| 0 | 2503 vm_exit(0); |
| 2504 #endif | |
| 2505 // -D | |
| 2506 } else if (match_option(option, "-D", &tail)) { | |
| 2507 if (!add_property(tail)) { | |
| 2508 return JNI_ENOMEM; | |
| 2509 } | |
| 2510 // Out of the box management support | |
| 2511 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
|
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|
2512 #if INCLUDE_MANAGEMENT |
| 0 | 2513 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
|
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|
2514 #else |
|
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|
2515 jio_fprintf(defaultStream::output_stream(), |
|
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diff
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|
2516 "-Dcom.sun.management is not supported in this VM.\n"); |
|
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|
2517 return JNI_ERR; |
|
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|
2518 #endif |
| 0 | 2519 } |
| 2520 // -Xint | |
| 2521 } else if (match_option(option, "-Xint", &tail)) { | |
| 2522 set_mode_flags(_int); | |
| 2523 // -Xmixed | |
| 2524 } else if (match_option(option, "-Xmixed", &tail)) { | |
| 2525 set_mode_flags(_mixed); | |
| 2526 // -Xcomp | |
| 2527 } else if (match_option(option, "-Xcomp", &tail)) { | |
| 2528 // for testing the compiler; turn off all flags that inhibit compilation | |
| 2529 set_mode_flags(_comp); | |
| 2530 // -Xshare:dump | |
| 2531 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
| 2532 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2533 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2534 // -Xshare:on | |
| 2535 } else if (match_option(option, "-Xshare:on", &tail)) { | |
| 2536 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2537 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
| 2538 // -Xshare:auto | |
| 2539 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
| 2540 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2541 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2542 // -Xshare:off | |
| 2543 } else if (match_option(option, "-Xshare:off", &tail)) { | |
| 2544 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
| 2545 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2546 // -Xverify | |
| 2547 } else if (match_option(option, "-Xverify", &tail)) { | |
| 2548 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
| 2549 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
| 2550 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2551 } else if (strcmp(tail, ":remote") == 0) { | |
| 2552 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2553 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2554 } else if (strcmp(tail, ":none") == 0) { | |
| 2555 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2556 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
| 2557 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
| 2558 return JNI_EINVAL; | |
| 2559 } | |
| 2560 // -Xdebug | |
| 2561 } else if (match_option(option, "-Xdebug", &tail)) { | |
| 2562 // note this flag has been used, then ignore | |
| 2563 set_xdebug_mode(true); | |
| 2564 // -Xnoagent | |
| 2565 } else if (match_option(option, "-Xnoagent", &tail)) { | |
| 2566 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
| 2567 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
| 2568 // Bind user level threads to kernel threads (Solaris only) | |
| 2569 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
| 2570 } else if (match_option(option, "-Xloggc:", &tail)) { | |
| 2571 // Redirect GC output to the file. -Xloggc:<filename> | |
| 2572 // ostream_init_log(), when called will use this filename | |
| 2573 // to initialize a fileStream. | |
| 2574 _gc_log_filename = strdup(tail); | |
| 2575 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2576 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
| 2577 | |
| 2578 // JNI hooks | |
| 2579 } else if (match_option(option, "-Xcheck", &tail)) { | |
| 2580 if (!strcmp(tail, ":jni")) { | |
|
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|
2581 #if !INCLUDE_JNI_CHECK |
|
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|
2582 warning("JNI CHECKING is not supported in this VM"); |
|
fb19af007ffc
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|
2583 #else |
| 0 | 2584 CheckJNICalls = true; |
|
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|
2585 #endif // INCLUDE_JNI_CHECK |
| 0 | 2586 } else if (is_bad_option(option, args->ignoreUnrecognized, |
| 2587 "check")) { | |
| 2588 return JNI_EINVAL; | |
| 2589 } | |
| 2590 } else if (match_option(option, "vfprintf", &tail)) { | |
| 2591 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
| 2592 } else if (match_option(option, "exit", &tail)) { | |
| 2593 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
| 2594 } else if (match_option(option, "abort", &tail)) { | |
| 2595 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
| 2596 // -XX:+AggressiveHeap | |
| 2597 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
| 2598 | |
| 2599 // This option inspects the machine and attempts to set various | |
| 2600 // parameters to be optimal for long-running, memory allocation | |
| 2601 // intensive jobs. It is intended for machines with large | |
| 2602 // amounts of cpu and memory. | |
| 2603 | |
| 2604 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
| 2605 // VM, but we may not be able to represent the total physical memory | |
| 2606 // available (like having 8gb of memory on a box but using a 32bit VM). | |
| 2607 // Thus, we need to make sure we're using a julong for intermediate | |
| 2608 // calculations. | |
| 2609 julong initHeapSize; | |
| 2610 julong total_memory = os::physical_memory(); | |
| 2611 | |
| 2612 if (total_memory < (julong)256*M) { | |
| 2613 jio_fprintf(defaultStream::error_stream(), | |
| 2614 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
| 2615 vm_exit(1); | |
| 2616 } | |
| 2617 | |
| 2618 // The heap size is half of available memory, or (at most) | |
| 2619 // all of possible memory less 160mb (leaving room for the OS | |
| 2620 // when using ISM). This is the maximum; because adaptive sizing | |
| 2621 // is turned on below, the actual space used may be smaller. | |
| 2622 | |
| 2623 initHeapSize = MIN2(total_memory / (julong)2, | |
| 2624 total_memory - (julong)160*M); | |
| 2625 | |
|
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|
2626 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
| 0 | 2627 |
| 2628 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
| 2629 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
| 1064 | 2630 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
| 0 | 2631 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2632 set_min_heap_size(initHeapSize); |
| 0 | 2633 } |
| 2634 if (FLAG_IS_DEFAULT(NewSize)) { | |
| 2635 // Make the young generation 3/8ths of the total heap. | |
| 2636 FLAG_SET_CMDLINE(uintx, NewSize, | |
| 2637 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
| 2638 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
| 2639 } | |
| 2640 | |
|
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|
2641 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
| 0 | 2642 FLAG_SET_DEFAULT(UseLargePages, true); |
|
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|
2643 #endif |
| 0 | 2644 |
| 2645 // Increase some data structure sizes for efficiency | |
| 2646 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
| 2647 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2648 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
| 2649 | |
| 2650 // See the OldPLABSize comment below, but replace 'after promotion' | |
| 2651 // with 'after copying'. YoungPLABSize is the size of the survivor | |
| 2652 // space per-gc-thread buffers. The default is 4kw. | |
| 2653 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
| 2654 | |
| 2655 // OldPLABSize is the size of the buffers in the old gen that | |
| 2656 // UseParallelGC uses to promote live data that doesn't fit in the | |
| 2657 // survivor spaces. At any given time, there's one for each gc thread. | |
| 2658 // The default size is 1kw. These buffers are rarely used, since the | |
| 2659 // survivor spaces are usually big enough. For specjbb, however, there | |
| 2660 // are occasions when there's lots of live data in the young gen | |
| 2661 // and we end up promoting some of it. We don't have a definite | |
| 2662 // explanation for why bumping OldPLABSize helps, but the theory | |
| 2663 // is that a bigger PLAB results in retaining something like the | |
| 2664 // original allocation order after promotion, which improves mutator | |
| 2665 // locality. A minor effect may be that larger PLABs reduce the | |
| 2666 // number of PLAB allocation events during gc. The value of 8kw | |
| 2667 // was arrived at by experimenting with specjbb. | |
| 2668 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
| 2669 | |
| 2670 // Enable parallel GC and adaptive generation sizing | |
| 2671 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
|
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|
2672 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
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|
2673 Abstract_VM_Version::parallel_worker_threads()); |
| 0 | 2674 |
| 2675 // Encourage steady state memory management | |
| 2676 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
| 2677 | |
| 2678 // This appears to improve mutator locality | |
| 2679 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2680 | |
| 2681 // Get around early Solaris scheduling bug | |
| 2682 // (affinity vs other jobs on system) | |
| 2683 // but disallow DR and offlining (5008695). | |
| 2684 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
| 2685 | |
| 2686 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
| 2687 // The last option must always win. | |
| 2688 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
| 2689 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
| 2690 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
| 2691 // The last option must always win. | |
| 2692 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
| 2693 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
| 2694 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
| 2695 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
| 2696 jio_fprintf(defaultStream::error_stream(), | |
| 2697 "Please use CMSClassUnloadingEnabled in place of " | |
| 2698 "CMSPermGenSweepingEnabled in the future\n"); | |
| 2699 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
| 2700 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
| 2701 jio_fprintf(defaultStream::error_stream(), | |
| 2702 "Please use -XX:+UseGCOverheadLimit in place of " | |
| 2703 "-XX:+UseGCTimeLimit in the future\n"); | |
| 2704 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
| 2705 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
| 2706 jio_fprintf(defaultStream::error_stream(), | |
| 2707 "Please use -XX:-UseGCOverheadLimit in place of " | |
| 2708 "-XX:-UseGCTimeLimit in the future\n"); | |
| 2709 // The TLE options are for compatibility with 1.3 and will be | |
| 2710 // removed without notice in a future release. These options | |
| 2711 // are not to be documented. | |
| 2712 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
| 2713 // No longer used. | |
| 2714 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
| 2715 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
| 2716 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
| 2717 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2718 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
| 2719 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
| 2720 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
| 2721 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
| 2722 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
| 2723 // No longer used. | |
| 2724 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
|
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|
2725 julong long_tlab_size = 0; |
| 0 | 2726 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
| 2727 if (errcode != arg_in_range) { | |
| 2728 jio_fprintf(defaultStream::error_stream(), | |
| 2729 "Invalid TLAB size: %s\n", option->optionString); | |
| 2730 describe_range_error(errcode); | |
| 2731 return JNI_EINVAL; | |
| 2732 } | |
| 2733 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
| 2734 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
| 2735 // No longer used. | |
| 2736 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
| 2737 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
| 2738 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
| 2739 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2740 SOLARIS_ONLY( | |
| 2741 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
| 2742 warning("-XX:+UsePermISM is obsolete."); | |
| 2743 FLAG_SET_CMDLINE(bool, UseISM, true); | |
| 2744 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
| 2745 FLAG_SET_CMDLINE(bool, UseISM, false); | |
| 2746 ) | |
| 2747 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
| 2748 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
| 2749 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
| 2750 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
| 2751 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
| 2752 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
| 2753 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
| 4006 | 2754 #if defined(DTRACE_ENABLED) |
| 0 | 2755 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
| 2756 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
| 2757 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
| 2758 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
| 4006 | 2759 #else // defined(DTRACE_ENABLED) |
| 0 | 2760 jio_fprintf(defaultStream::error_stream(), |
| 4006 | 2761 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
| 0 | 2762 return JNI_EINVAL; |
| 4006 | 2763 #endif // defined(DTRACE_ENABLED) |
| 0 | 2764 #ifdef ASSERT |
|
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diff
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|
2765 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
| 0 | 2766 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
| 2767 // disable scavenge before parallel mark-compact | |
| 2768 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2769 #endif | |
|
1145
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parents:
1074
diff
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|
2770 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
| 0 | 2771 julong cms_blocks_to_claim = (julong)atol(tail); |
| 2772 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
| 2773 jio_fprintf(defaultStream::error_stream(), | |
|
1145
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parents:
1074
diff
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|
2774 "Please use -XX:OldPLABSize in place of " |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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parents:
1074
diff
changeset
|
2775 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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parents:
1074
diff
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|
2776 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2777 julong cms_blocks_to_claim = (julong)atol(tail); |
|
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6631166: CMS: better heuristics when combatting fragmentation
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parents:
1074
diff
changeset
|
2778 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
|
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1074
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|
2779 jio_fprintf(defaultStream::error_stream(), |
|
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parents:
1074
diff
changeset
|
2780 "Please use -XX:OldPLABSize in place of " |
| 0 | 2781 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
|
1145
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parents:
1074
diff
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|
2782 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
|
489
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diff
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|
2783 julong old_plab_size = 0; |
| 0 | 2784 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
| 2785 if (errcode != arg_in_range) { | |
| 2786 jio_fprintf(defaultStream::error_stream(), | |
| 2787 "Invalid old PLAB size: %s\n", option->optionString); | |
| 2788 describe_range_error(errcode); | |
| 2789 return JNI_EINVAL; | |
| 2790 } | |
|
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2791 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
| 0 | 2792 jio_fprintf(defaultStream::error_stream(), |
| 2793 "Please use -XX:OldPLABSize in place of " | |
| 2794 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
|
1145
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parents:
1074
diff
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|
2795 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
|
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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diff
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|
2796 julong young_plab_size = 0; |
| 0 | 2797 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
| 2798 if (errcode != arg_in_range) { | |
| 2799 jio_fprintf(defaultStream::error_stream(), | |
| 2800 "Invalid young PLAB size: %s\n", option->optionString); | |
| 2801 describe_range_error(errcode); | |
| 2802 return JNI_EINVAL; | |
| 2803 } | |
|
489
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swamyv
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483
diff
changeset
|
2804 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
| 0 | 2805 jio_fprintf(defaultStream::error_stream(), |
| 2806 "Please use -XX:YoungPLABSize in place of " | |
| 2807 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
| 1284 | 2808 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
| 2809 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
| 2810 julong stack_size = 0; | |
| 2811 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
| 2812 if (errcode != arg_in_range) { | |
| 2813 jio_fprintf(defaultStream::error_stream(), | |
| 2814 "Invalid mark stack size: %s\n", option->optionString); | |
| 2815 describe_range_error(errcode); | |
| 2816 return JNI_EINVAL; | |
| 2817 } | |
| 2818 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
| 2819 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
| 2820 julong max_stack_size = 0; | |
| 2821 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
| 2822 if (errcode != arg_in_range) { | |
| 2823 jio_fprintf(defaultStream::error_stream(), | |
| 2824 "Invalid maximum mark stack size: %s\n", | |
| 2825 option->optionString); | |
| 2826 describe_range_error(errcode); | |
| 2827 return JNI_EINVAL; | |
| 2828 } | |
| 2829 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
| 2830 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
| 2831 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
| 2832 uintx conc_threads = 0; | |
| 2833 if (!parse_uintx(tail, &conc_threads, 1)) { | |
| 2834 jio_fprintf(defaultStream::error_stream(), | |
| 2835 "Invalid concurrent threads: %s\n", option->optionString); | |
| 2836 return JNI_EINVAL; | |
| 2837 } | |
| 2838 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
|
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2839 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
2840 julong max_direct_memory_size = 0; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2841 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
2842 if (errcode != arg_in_range) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2843 jio_fprintf(defaultStream::error_stream(), |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2844 "Invalid maximum direct memory size: %s\n", |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2845 option->optionString); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2846 describe_range_error(errcode); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2847 return JNI_EINVAL; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2848 } |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2849 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
|
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2850 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2851 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2852 // away and will cause VM initialization failures! |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2853 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
|
2854 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
|
2855 #if !INCLUDE_MANAGEMENT |
|
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2856 } else if (match_option(option, "-XX:+ManagementServer", &tail)) { |
|
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2857 jio_fprintf(defaultStream::error_stream(), |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2858 "ManagementServer is not supported in this VM.\n"); |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2859 return JNI_ERR; |
|
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
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diff
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|
2860 #endif // INCLUDE_MANAGEMENT |
|
1145
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diff
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|
2861 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 0 | 2862 // Skip -XX:Flags= since that case has already been handled |
| 2863 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
| 2864 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
| 2865 return JNI_EINVAL; | |
| 2866 } | |
| 2867 } | |
| 2868 // Unknown option | |
| 2869 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
| 2870 return JNI_ERR; | |
| 2871 } | |
| 2872 } | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2873 |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2874 // 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
|
2875 // when working with older JDKs. |
|
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2876 #ifdef LINUX |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2877 if (JDK_Version::current().compare_major(6) <= 0 && |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2878 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2879 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
|
3d90023429ec
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aph
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1628
diff
changeset
|
2880 } |
|
3d90023429ec
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1628
diff
changeset
|
2881 #endif // LINUX |
| 0 | 2882 return JNI_OK; |
| 2883 } | |
| 2884 | |
| 2885 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
| 2886 // This must be done after all -D arguments have been processed. | |
| 2887 scp_p->expand_endorsed(); | |
| 2888 | |
| 2889 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
| 2890 // Assemble the bootclasspath elements into the final path. | |
| 2891 Arguments::set_sysclasspath(scp_p->combined_path()); | |
| 2892 } | |
| 2893 | |
| 2894 // This must be done after all arguments have been processed. | |
| 2895 // java_compiler() true means set to "NONE" or empty. | |
| 2896 if (java_compiler() && !xdebug_mode()) { | |
| 2897 // For backwards compatibility, we switch to interpreted mode if | |
| 2898 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
| 2899 // not specified. | |
| 2900 set_mode_flags(_int); | |
| 2901 } | |
| 2902 if (CompileThreshold == 0) { | |
| 2903 set_mode_flags(_int); | |
| 2904 } | |
| 2905 | |
| 2906 #ifndef COMPILER2 | |
| 2907 // Don't degrade server performance for footprint | |
| 2908 if (FLAG_IS_DEFAULT(UseLargePages) && | |
| 2909 MaxHeapSize < LargePageHeapSizeThreshold) { | |
| 2910 // No need for large granularity pages w/small heaps. | |
| 2911 // Note that large pages are enabled/disabled for both the | |
| 2912 // Java heap and the code cache. | |
| 2913 FLAG_SET_DEFAULT(UseLargePages, false); | |
| 2914 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
| 2915 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
| 2916 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2917 |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2918 // Tiered compilation is undefined with C1. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2919 TieredCompilation = false; |
| 0 | 2920 #else |
| 2921 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
| 2922 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
| 2923 } | |
| 2924 #endif | |
| 2925 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2926 // 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
|
2927 // to be true unless the property has already been set. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2928 // 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
|
2929 if (os::is_headless_jre()) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2930 const char* headless = Arguments::get_property("java.awt.headless"); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2931 if (headless == NULL) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2932 char envbuffer[128]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2933 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2934 if (!add_property("java.awt.headless=true")) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2935 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2936 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2937 } else { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2938 char buffer[256]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2939 strcpy(buffer, "java.awt.headless="); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2940 strcat(buffer, envbuffer); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2941 if (!add_property(buffer)) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2942 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2943 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2944 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2945 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2946 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2947 |
| 0 | 2948 if (!check_vm_args_consistency()) { |
| 2949 return JNI_ERR; | |
| 2950 } | |
| 2951 | |
| 2952 return JNI_OK; | |
| 2953 } | |
| 2954 | |
| 2955 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2956 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
| 2957 scp_assembly_required_p); | |
| 2958 } | |
| 2959 | |
| 2960 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2961 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
| 2962 scp_assembly_required_p); | |
| 2963 } | |
| 2964 | |
| 2965 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2966 const int N_MAX_OPTIONS = 64; | |
| 2967 const int OPTION_BUFFER_SIZE = 1024; | |
| 2968 char buffer[OPTION_BUFFER_SIZE]; | |
| 2969 | |
| 2970 // The variable will be ignored if it exceeds the length of the buffer. | |
| 2971 // Don't check this variable if user has special privileges | |
| 2972 // (e.g. unix su command). | |
| 2973 if (os::getenv(name, buffer, sizeof(buffer)) && | |
| 2974 !os::have_special_privileges()) { | |
| 2975 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
| 2976 jio_fprintf(defaultStream::error_stream(), | |
| 2977 "Picked up %s: %s\n", name, buffer); | |
| 2978 char* rd = buffer; // pointer to the input string (rd) | |
| 2979 int i; | |
| 2980 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
| 2981 while (isspace(*rd)) rd++; // skip whitespace | |
| 2982 if (*rd == 0) break; // we re done when the input string is read completely | |
| 2983 | |
| 2984 // The output, option string, overwrites the input string. | |
| 2985 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
| 2986 // input string (rd). | |
| 2987 char* wrt = rd; | |
| 2988 | |
| 2989 options[i++].optionString = wrt; // Fill in option | |
| 2990 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
| 2991 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
| 2992 int quote = *rd; // matching quote to look for | |
| 2993 rd++; // don't copy open quote | |
| 2994 while (*rd != quote) { // include everything (even spaces) up until quote | |
| 2995 if (*rd == 0) { // string termination means unmatched string | |
| 2996 jio_fprintf(defaultStream::error_stream(), | |
| 2997 "Unmatched quote in %s\n", name); | |
| 2998 return JNI_ERR; | |
| 2999 } | |
| 3000 *wrt++ = *rd++; // copy to option string | |
| 3001 } | |
| 3002 rd++; // don't copy close quote | |
| 3003 } else { | |
| 3004 *wrt++ = *rd++; // copy to option string | |
| 3005 } | |
| 3006 } | |
| 3007 // Need to check if we're done before writing a NULL, | |
| 3008 // because the write could be to the byte that rd is pointing to. | |
| 3009 if (*rd++ == 0) { | |
| 3010 *wrt = 0; | |
| 3011 break; | |
| 3012 } | |
| 3013 *wrt = 0; // Zero terminate option | |
| 3014 } | |
| 3015 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
| 3016 JavaVMInitArgs vm_args; | |
| 3017 vm_args.version = JNI_VERSION_1_2; | |
| 3018 vm_args.options = options; | |
| 3019 vm_args.nOptions = i; | |
| 564 | 3020 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 0 | 3021 |
| 3022 if (PrintVMOptions) { | |
| 3023 const char* tail; | |
| 3024 for (int i = 0; i < vm_args.nOptions; i++) { | |
| 3025 const JavaVMOption *option = vm_args.options + i; | |
| 3026 if (match_option(option, "-XX:", &tail)) { | |
| 3027 logOption(tail); | |
| 3028 } | |
| 3029 } | |
| 3030 } | |
| 3031 | |
| 3032 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
| 3033 } | |
| 3034 return JNI_OK; | |
| 3035 } | |
| 3036 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3037 void Arguments::set_shared_spaces_flags() { |
| 2378 | 3038 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
| 3039 const bool might_share = must_share || UseSharedSpaces; | |
| 3040 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3041 // 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
|
3042 // 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
|
3043 // initialization, this restriction can probably be lifted. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3044 // ??? UseLargePages might be okay now |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3045 const bool cannot_share = UseCompressedOops || |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3046 (UseLargePages && FLAG_IS_CMDLINE(UseLargePages)); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3047 if (cannot_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3048 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
|
3049 warning("disabling large pages %s" |
| 2378 | 3050 "because of %s", "" LP64_ONLY("and compressed oops "), |
| 3051 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
| 3052 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
| 3053 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
|
3054 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false)); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3055 } else { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3056 // 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
|
3057 if (UseSharedSpaces && Verbose) { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3058 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
|
3059 "" LP64_ONLY(" and/or compressed oops")); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3060 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3061 no_shared_spaces(); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3062 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3063 } else if (UseLargePages && might_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3064 // 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
|
3065 // there may not even be a shared archive to use. |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3066 FLAG_SET_DEFAULT(UseLargePages, false); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3067 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3068 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3069 if (DumpSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3070 if (RequireSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3071 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
|
3072 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3073 UseSharedSpaces = false; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3074 } |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3075 } |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3076 |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3077 // 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
|
3078 // were explicitly requested on the command-line |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3079 #define UNSUPPORTED_OPTION(opt, description) \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3080 do { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3081 if (opt) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3082 if (FLAG_IS_CMDLINE(opt)) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3083 warning(description " is disabled in this release."); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3084 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3085 FLAG_SET_DEFAULT(opt, false); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3086 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3087 } while(0) |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3088 |
|
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3089 |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3090 #define UNSUPPORTED_GC_OPTION(gc) \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3091 do { \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3092 if (gc) { \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3093 if (FLAG_IS_CMDLINE(gc)) { \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3094 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
|
3095 } \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3096 FLAG_SET_DEFAULT(gc, false); \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3097 } \ |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3098 } while(0) |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3099 |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3100 #if !INCLUDE_ALL_GCS |
|
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3101 static void force_serial_gc() { |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3102 FLAG_SET_DEFAULT(UseSerialGC, true); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3103 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
|
3104 UNSUPPORTED_GC_OPTION(UseG1GC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3105 UNSUPPORTED_GC_OPTION(UseParallelGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3106 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3107 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3108 UNSUPPORTED_GC_OPTION(UseParNewGC); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3109 } |
|
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3110 #endif // INCLUDE_ALL_GCS |
|
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3111 |
| 0 | 3112 // Parse entry point called from JNI_CreateJavaVM |
| 3113 | |
| 3114 jint Arguments::parse(const JavaVMInitArgs* args) { | |
| 3115 | |
| 3116 // Sharing support | |
| 3117 // Construct the path to the archive | |
| 3118 char jvm_path[JVM_MAXPATHLEN]; | |
| 3119 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
| 3120 char *end = strrchr(jvm_path, *os::file_separator()); | |
| 3121 if (end != NULL) *end = '\0'; | |
| 3122 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
| 6197 | 3123 strlen(os::file_separator()) + 20, mtInternal); |
| 0 | 3124 if (shared_archive_path == NULL) return JNI_ENOMEM; |
| 3125 strcpy(shared_archive_path, jvm_path); | |
| 3126 strcat(shared_archive_path, os::file_separator()); | |
| 3127 strcat(shared_archive_path, "classes"); | |
| 3128 strcat(shared_archive_path, ".jsa"); | |
| 3129 SharedArchivePath = shared_archive_path; | |
| 3130 | |
| 3131 // Remaining part of option string | |
| 3132 const char* tail; | |
| 3133 | |
| 3134 // 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
|
3135 const char* hotspotrc = ".hotspotrc"; |
| 0 | 3136 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
|
3137 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
|
3138 |
| 564 | 3139 const char* flags_file; |
| 0 | 3140 int index; |
| 3141 for (index = 0; index < args->nOptions; index++) { | |
| 3142 const JavaVMOption *option = args->options + index; | |
| 3143 if (match_option(option, "-XX:Flags=", &tail)) { | |
| 564 | 3144 flags_file = tail; |
| 0 | 3145 settings_file_specified = true; |
| 3146 } | |
| 3147 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
| 3148 PrintVMOptions = true; | |
| 3149 } | |
|
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3150 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
|
3151 PrintVMOptions = false; |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3152 } |
| 564 | 3153 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
| 3154 IgnoreUnrecognizedVMOptions = true; | |
| 3155 } | |
| 3156 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
| 3157 IgnoreUnrecognizedVMOptions = false; | |
| 3158 } | |
| 1150 | 3159 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
| 4773 | 3160 CommandLineFlags::printFlags(tty, false); |
| 1150 | 3161 vm_exit(0); |
| 3162 } | |
| 6197 | 3163 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3164 #if INCLUDE_NMT |
| 6197 | 3165 MemTracker::init_tracking_options(tail); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3166 #else |
|
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3167 jio_fprintf(defaultStream::error_stream(), |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3168 "Native Memory Tracking is not supported in this VM\n"); |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3169 return JNI_ERR; |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3170 #endif |
| 6197 | 3171 } |
| 3172 | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3173 |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3174 #ifndef PRODUCT |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3175 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
| 4773 | 3176 CommandLineFlags::printFlags(tty, true); |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3177 vm_exit(0); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3178 } |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3179 #endif |
| 564 | 3180 } |
| 3181 | |
| 3182 if (IgnoreUnrecognizedVMOptions) { | |
| 3183 // uncast const to modify the flag args->ignoreUnrecognized | |
| 3184 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
| 3185 } | |
| 3186 | |
| 3187 // Parse specified settings file | |
| 3188 if (settings_file_specified) { | |
| 3189 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
| 3190 return JNI_EINVAL; | |
| 3191 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3192 } else { |
|
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3193 #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
|
3194 // Parse default .hotspotrc settings file |
| 0 | 3195 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
| 3196 return JNI_EINVAL; | |
| 3197 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3198 #else |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3199 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
|
3200 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
|
3201 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
|
3202 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3203 #endif |
| 0 | 3204 } |
| 3205 | |
| 3206 if (PrintVMOptions) { | |
| 3207 for (index = 0; index < args->nOptions; index++) { | |
| 3208 const JavaVMOption *option = args->options + index; | |
| 3209 if (match_option(option, "-XX:", &tail)) { | |
| 3210 logOption(tail); | |
| 3211 } | |
| 3212 } | |
| 3213 } | |
| 3214 | |
| 3215 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
| 3216 jint result = parse_vm_init_args(args); | |
| 3217 if (result != JNI_OK) { | |
| 3218 return result; | |
| 3219 } | |
| 3220 | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3221 // 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
|
3222 // 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
|
3223 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
|
3224 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
|
3225 "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
|
3226 hotspotrc, hotspotrc); |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3227 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3228 |
|
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3229 #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
|
3230 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
|
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3231 #endif |
|
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3232 |
|
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3233 #if INCLUDE_ALL_GCS |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3234 #if (defined JAVASE_EMBEDDED || defined ARM) |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3235 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3236 #endif |
|
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3237 #endif |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3238 |
| 0 | 3239 #ifndef PRODUCT |
| 3240 if (TraceBytecodesAt != 0) { | |
| 3241 TraceBytecodes = true; | |
| 3242 } | |
| 3243 if (CountCompiledCalls) { | |
| 3244 if (UseCounterDecay) { | |
| 3245 warning("UseCounterDecay disabled because CountCalls is set"); | |
| 3246 UseCounterDecay = false; | |
| 3247 } | |
| 3248 } | |
| 3249 #endif // PRODUCT | |
| 3250 | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3251 // 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
|
3252 if (!JDK_Version::is_gte_jdk17x_version()) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3253 if (EnableInvokeDynamic) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3254 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3255 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
|
3256 } |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3257 EnableInvokeDynamic = false; |
| 710 | 3258 } |
| 3259 } | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3260 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3261 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3262 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3263 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
|
3264 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3265 ScavengeRootsInCode = 1; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3266 } |
| 710 | 3267 |
| 0 | 3268 if (PrintGCDetails) { |
| 3269 // Turn on -verbose:gc options as well | |
| 3270 PrintGC = true; | |
| 3271 } | |
| 3272 | |
|
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3273 if (!JDK_Version::is_gte_jdk18x_version()) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3274 // 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
|
3275 // true by default in JDK8 and above. |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3276 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3277 FLAG_SET_DEFAULT(PrintGCCause, false); |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3278 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3279 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3280 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3281 // 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
|
3282 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
|
3283 |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3284 #if !INCLUDE_ALL_GCS |
| 1064 | 3285 force_serial_gc(); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3286 #endif // INCLUDE_ALL_GCS |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3287 #if !INCLUDE_CDS |
|
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3288 if (DumpSharedSpaces || RequireSharedSpaces) { |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3289 jio_fprintf(defaultStream::error_stream(), |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3290 "Shared spaces are not supported in this VM\n"); |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3291 return JNI_ERR; |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3292 } |
|
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3293 if ((UseSharedSpaces && FLAG_IS_CMDLINE(UseSharedSpaces)) || PrintSharedSpaces) { |
|
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3294 warning("Shared spaces are not supported in this VM"); |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3295 FLAG_SET_DEFAULT(UseSharedSpaces, false); |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3296 FLAG_SET_DEFAULT(PrintSharedSpaces, false); |
|
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3297 } |
| 0 | 3298 no_shared_spaces(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3299 #endif // INCLUDE_CDS |
| 0 | 3300 |
| 3301 // Set flags based on ergonomics. | |
| 3302 set_ergonomics_flags(); | |
| 3303 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3304 set_shared_spaces_flags(); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3305 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3306 // Check the GC selections again. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3307 if (!check_gc_consistency()) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3308 return JNI_EINVAL; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3309 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3310 |
| 1783 | 3311 if (TieredCompilation) { |
| 3312 set_tiered_flags(); | |
| 3313 } else { | |
| 3314 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
| 3315 if (CompilationPolicyChoice >= 2) { | |
| 3316 vm_exit_during_initialization( | |
| 3317 "Incompatible compilation policy selected", NULL); | |
| 3318 } | |
| 3319 } | |
| 3320 | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3321 // Set heap size based on available physical memory |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3322 set_heap_size(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3323 |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3324 #if INCLUDE_ALL_GCS |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3325 // Set per-collector flags |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3326 if (UseParallelGC || UseParallelOldGC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3327 set_parallel_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3328 } 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
|
3329 set_cms_and_parnew_gc_flags(); |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3330 } 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
|
3331 set_parnew_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3332 } else if (UseG1GC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3333 set_g1_gc_flags(); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3334 } |
|
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3335 check_deprecated_gcs(); |
| 8734 | 3336 check_deprecated_gc_flags(); |
|
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3337 if (AssumeMP && !UseSerialGC) { |
|
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3338 if (FLAG_IS_DEFAULT(ParallelGCThreads) && ParallelGCThreads == 1) { |
|
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3339 warning("If the number of processors is expected to increase from one, then" |
|
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3340 " you should configure the number of parallel GC threads appropriately" |
|
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3341 " using -XX:ParallelGCThreads=N"); |
|
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3342 } |
|
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3343 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3344 #else // INCLUDE_ALL_GCS |
| 0 | 3345 assert(verify_serial_gc_flags(), "SerialGC unset"); |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3346 #endif // INCLUDE_ALL_GCS |
| 0 | 3347 |
| 3348 // Set bytecode rewriting flags | |
| 3349 set_bytecode_flags(); | |
| 3350 | |
| 3351 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
| 3352 set_aggressive_opts_flags(); | |
| 3353 | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3354 // Turn off biased locking for locking debug mode flags, |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3355 // 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
|
3356 // biased locking. |
| 2331 | 3357 if (UseHeavyMonitors |
| 3358 #ifdef COMPILER1 | |
| 3359 || !UseFastLocking | |
| 3360 #endif // COMPILER1 | |
| 3361 ) { | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3362 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3363 // 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
|
3364 // can't enable biased locking here |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3365 warning("Biased Locking is not supported with locking debug flags" |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3366 "; ignoring UseBiasedLocking flag." ); |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3367 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3368 UseBiasedLocking = false; |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3369 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3370 |
| 0 | 3371 #ifdef CC_INTERP |
| 1131 | 3372 // Clear flags not supported by the C++ interpreter |
| 3373 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
| 0 | 3374 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
| 1131 | 3375 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3376 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
| 1131 | 3377 #endif // CC_INTERP |
| 3378 | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3379 #ifdef COMPILER2 |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3380 if (!UseBiasedLocking || EmitSync != 0) { |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3381 UseOptoBiasInlining = false; |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3382 } |
| 4777 | 3383 if (!EliminateLocks) { |
| 3384 EliminateNestedLocks = false; | |
| 3385 } | |
| 7473 | 3386 if (!Inline) { |
| 3387 IncrementalInline = false; | |
| 3388 } | |
| 3389 #ifndef PRODUCT | |
| 3390 if (!IncrementalInline) { | |
| 3391 AlwaysIncrementalInline = false; | |
| 3392 } | |
| 3393 #endif | |
| 3394 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
| 3395 // incremental inlining: bump MaxNodeLimit | |
| 3396 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
| 3397 } | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3398 #endif |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3399 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3400 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3401 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
|
3402 DebugNonSafepoints = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3403 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3404 |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3405 #ifndef PRODUCT |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3406 if (CompileTheWorld) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3407 // 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
|
3408 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3409 NmethodSweepFraction = 1; |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3410 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3411 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3412 #endif |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3413 |
| 0 | 3414 if (PrintCommandLineFlags) { |
| 4773 | 3415 CommandLineFlags::printSetFlags(tty); |
| 0 | 3416 } |
| 3417 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3418 // Apply CPU specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3419 if (UseBiasedLocking) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3420 if (!VM_Version::use_biased_locking() && |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3421 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3422 UseBiasedLocking = false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3423 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3424 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3425 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3426 // 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
|
3427 // 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
|
3428 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3429 bool set = false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3430 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3431 if (!set) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3432 FLAG_SET_DEFAULT(PauseAtExit, true); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3433 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3434 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3435 |
| 0 | 3436 return JNI_OK; |
| 3437 } | |
| 3438 | |
|
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3439 jint Arguments::adjust_after_os() { |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3440 #if INCLUDE_ALL_GCS |
|
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3441 if (UseParallelGC || UseParallelOldGC) { |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3442 if (UseNUMA) { |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3443 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3444 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3445 } |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3446 // For those collectors or operating systems (eg, Windows) that do |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3447 // not support full UseNUMA, we will map to UseNUMAInterleaving for now |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3448 UseNUMAInterleaving = true; |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3449 } |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3450 } |
|
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3451 #endif // INCLUDE_ALL_GCS |
|
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3452 return JNI_OK; |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3453 } |
|
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3454 |
| 0 | 3455 int Arguments::PropertyList_count(SystemProperty* pl) { |
| 3456 int count = 0; | |
| 3457 while(pl != NULL) { | |
| 3458 count++; | |
| 3459 pl = pl->next(); | |
| 3460 } | |
| 3461 return count; | |
| 3462 } | |
| 3463 | |
| 3464 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
| 3465 assert(key != NULL, "just checking"); | |
| 3466 SystemProperty* prop; | |
| 3467 for (prop = pl; prop != NULL; prop = prop->next()) { | |
| 3468 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
| 3469 } | |
| 3470 return NULL; | |
| 3471 } | |
| 3472 | |
| 3473 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
| 3474 int count = 0; | |
| 3475 const char* ret_val = NULL; | |
| 3476 | |
| 3477 while(pl != NULL) { | |
| 3478 if(count >= index) { | |
| 3479 ret_val = pl->key(); | |
| 3480 break; | |
| 3481 } | |
| 3482 count++; | |
| 3483 pl = pl->next(); | |
| 3484 } | |
| 3485 | |
| 3486 return ret_val; | |
| 3487 } | |
| 3488 | |
| 3489 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
| 3490 int count = 0; | |
| 3491 char* ret_val = NULL; | |
| 3492 | |
| 3493 while(pl != NULL) { | |
| 3494 if(count >= index) { | |
| 3495 ret_val = pl->value(); | |
| 3496 break; | |
| 3497 } | |
| 3498 count++; | |
| 3499 pl = pl->next(); | |
| 3500 } | |
| 3501 | |
| 3502 return ret_val; | |
| 3503 } | |
| 3504 | |
| 3505 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
| 3506 SystemProperty* p = *plist; | |
| 3507 if (p == NULL) { | |
| 3508 *plist = new_p; | |
| 3509 } else { | |
| 3510 while (p->next() != NULL) { | |
| 3511 p = p->next(); | |
| 3512 } | |
| 3513 p->set_next(new_p); | |
| 3514 } | |
| 3515 } | |
| 3516 | |
| 3517 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
| 3518 if (plist == NULL) | |
| 3519 return; | |
| 3520 | |
| 3521 SystemProperty* new_p = new SystemProperty(k, v, true); | |
| 3522 PropertyList_add(plist, new_p); | |
| 3523 } | |
| 3524 | |
| 3525 // This add maintains unique property key in the list. | |
| 691 | 3526 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
| 0 | 3527 if (plist == NULL) |
| 3528 return; | |
| 3529 | |
| 3530 // If property key exist then update with new value. | |
| 3531 SystemProperty* prop; | |
| 3532 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
| 3533 if (strcmp(k, prop->key()) == 0) { | |
| 691 | 3534 if (append) { |
| 3535 prop->append_value(v); | |
| 3536 } else { | |
| 3537 prop->set_value(v); | |
| 3538 } | |
| 0 | 3539 return; |
| 3540 } | |
| 3541 } | |
| 3542 | |
| 3543 PropertyList_add(plist, k, v); | |
| 3544 } | |
| 3545 | |
| 3546 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
| 3547 // Returns true if all of the source pointed by src has been copied over to | |
| 3548 // the destination buffer pointed by buf. Otherwise, returns false. | |
| 3549 // Notes: | |
| 3550 // 1. If the length (buflen) of the destination buffer excluding the | |
| 3551 // NULL terminator character is not long enough for holding the expanded | |
| 3552 // pid characters, it also returns false instead of returning the partially | |
| 3553 // expanded one. | |
| 3554 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
| 3555 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
| 3556 char* buf, size_t buflen) { | |
| 3557 const char* p = src; | |
| 3558 char* b = buf; | |
| 3559 const char* src_end = &src[srclen]; | |
| 3560 char* buf_end = &buf[buflen - 1]; | |
| 3561 | |
| 3562 while (p < src_end && b < buf_end) { | |
| 3563 if (*p == '%') { | |
| 3564 switch (*(++p)) { | |
| 3565 case '%': // "%%" ==> "%" | |
| 3566 *b++ = *p++; | |
| 3567 break; | |
| 3568 case 'p': { // "%p" ==> current process id | |
| 3569 // buf_end points to the character before the last character so | |
| 3570 // that we could write '\0' to the end of the buffer. | |
| 3571 size_t buf_sz = buf_end - b + 1; | |
| 3572 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
| 3573 | |
| 3574 // if jio_snprintf fails or the buffer is not long enough to hold | |
| 3575 // the expanded pid, returns false. | |
| 3576 if (ret < 0 || ret >= (int)buf_sz) { | |
| 3577 return false; | |
| 3578 } else { | |
| 3579 b += ret; | |
| 3580 assert(*b == '\0', "fail in copy_expand_pid"); | |
| 3581 if (p == src_end && b == buf_end + 1) { | |
| 3582 // reach the end of the buffer. | |
| 3583 return true; | |
| 3584 } | |
| 3585 } | |
| 3586 p++; | |
| 3587 break; | |
| 3588 } | |
| 3589 default : | |
| 3590 *b++ = '%'; | |
| 3591 } | |
| 3592 } else { | |
| 3593 *b++ = *p++; | |
| 3594 } | |
| 3595 } | |
| 3596 *b = '\0'; | |
| 3597 return (p == src_end); // return false if not all of the source was copied | |
| 3598 } |