Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 5152:cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
| author | Doug Simon <doug.simon@oracle.com> |
|---|---|
| date | Fri, 23 Mar 2012 11:48:39 +0100 |
| parents | ba5e8ba07b5c |
| children | af59b4dfc9e4 |
| rev | line source |
|---|---|
| 0 | 1 /* |
| 4838 | 2 * Copyright (c) 1997, 2012, 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" | |
| 27 #include "compiler/compilerOracle.hpp" | |
| 28 #include "memory/allocation.inline.hpp" | |
| 29 #include "memory/cardTableRS.hpp" | |
| 30 #include "memory/referenceProcessor.hpp" | |
| 31 #include "memory/universe.inline.hpp" | |
| 32 #include "oops/oop.inline.hpp" | |
| 33 #include "prims/jvmtiExport.hpp" | |
| 34 #include "runtime/arguments.hpp" | |
| 35 #include "runtime/globals_extension.hpp" | |
| 36 #include "runtime/java.hpp" | |
| 37 #include "services/management.hpp" | |
| 38 #include "utilities/defaultStream.hpp" | |
| 39 #include "utilities/taskqueue.hpp" | |
| 40 #ifdef TARGET_OS_FAMILY_linux | |
| 41 # include "os_linux.inline.hpp" | |
| 42 #endif | |
| 43 #ifdef TARGET_OS_FAMILY_solaris | |
| 44 # include "os_solaris.inline.hpp" | |
| 45 #endif | |
| 46 #ifdef TARGET_OS_FAMILY_windows | |
| 47 # include "os_windows.inline.hpp" | |
| 48 #endif | |
| 3960 | 49 #ifdef TARGET_OS_FAMILY_bsd |
| 50 # include "os_bsd.inline.hpp" | |
| 51 #endif | |
| 1972 | 52 #ifndef SERIALGC |
| 53 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" | |
| 54 #endif | |
| 0 | 55 |
| 2474 | 56 // Note: This is a special bug reporting site for the JVM |
| 57 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
| 0 | 58 #define DEFAULT_JAVA_LAUNCHER "generic" |
| 59 | |
| 60 char** Arguments::_jvm_flags_array = NULL; | |
| 61 int Arguments::_num_jvm_flags = 0; | |
| 62 char** Arguments::_jvm_args_array = NULL; | |
| 63 int Arguments::_num_jvm_args = 0; | |
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64 #ifdef GRAAL |
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65 char** Arguments::_graal_args_array = NULL; |
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66 int Arguments::_num_graal_args = 0; |
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67 #endif |
| 0 | 68 char* Arguments::_java_command = NULL; |
| 69 SystemProperty* Arguments::_system_properties = NULL; | |
| 70 const char* Arguments::_gc_log_filename = NULL; | |
| 71 bool Arguments::_has_profile = false; | |
| 72 bool Arguments::_has_alloc_profile = false; | |
| 73 uintx Arguments::_min_heap_size = 0; | |
| 74 Arguments::Mode Arguments::_mode = _mixed; | |
| 75 bool Arguments::_java_compiler = false; | |
| 76 bool Arguments::_xdebug_mode = false; | |
| 77 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
| 78 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
| 79 int Arguments::_sun_java_launcher_pid = -1; | |
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80 bool Arguments::_created_by_gamma_launcher = false; |
| 0 | 81 |
| 82 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
| 83 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 84 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 85 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 86 bool Arguments::_ClipInlining = ClipInlining; | |
| 87 | |
| 88 char* Arguments::SharedArchivePath = NULL; | |
| 89 | |
| 90 AgentLibraryList Arguments::_libraryList; | |
| 91 AgentLibraryList Arguments::_agentList; | |
| 92 | |
| 93 abort_hook_t Arguments::_abort_hook = NULL; | |
| 94 exit_hook_t Arguments::_exit_hook = NULL; | |
| 95 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
| 96 | |
| 97 | |
| 98 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
| 99 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
| 100 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
| 101 SystemProperty *Arguments::_java_library_path = NULL; | |
| 102 SystemProperty *Arguments::_java_home = NULL; | |
| 103 SystemProperty *Arguments::_java_class_path = NULL; | |
| 104 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
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105 #ifdef GRAAL |
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106 SystemProperty *Arguments::_compiler_class_path = NULL; |
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107 #endif |
| 0 | 108 |
| 109 char* Arguments::_meta_index_path = NULL; | |
| 110 char* Arguments::_meta_index_dir = NULL; | |
| 111 | |
| 112 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
| 113 | |
| 114 static bool match_option(const JavaVMOption *option, const char* name, | |
| 115 const char** tail) { | |
| 116 int len = (int)strlen(name); | |
| 117 if (strncmp(option->optionString, name, len) == 0) { | |
| 118 *tail = option->optionString + len; | |
| 119 return true; | |
| 120 } else { | |
| 121 return false; | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 static void logOption(const char* opt) { | |
| 126 if (PrintVMOptions) { | |
| 127 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
| 128 } | |
| 129 } | |
| 130 | |
| 131 // Process java launcher properties. | |
| 132 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
| 133 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
| 134 // Must do this before setting up other system properties, | |
| 135 // as some of them may depend on launcher type. | |
| 136 for (int index = 0; index < args->nOptions; index++) { | |
| 137 const JavaVMOption* option = args->options + index; | |
| 138 const char* tail; | |
| 139 | |
| 140 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
| 141 process_java_launcher_argument(tail, option->extraInfo); | |
| 142 continue; | |
| 143 } | |
| 144 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
| 145 _sun_java_launcher_pid = atoi(tail); | |
| 146 continue; | |
| 147 } | |
| 148 } | |
| 149 } | |
| 150 | |
| 151 // Initialize system properties key and value. | |
| 152 void Arguments::init_system_properties() { | |
| 153 | |
| 154 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
| 155 "Java Virtual Machine Specification", false)); | |
| 156 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
| 157 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
| 158 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
| 159 | |
| 160 // following are JVMTI agent writeable properties. | |
| 161 // Properties values are set to NULL and they are | |
| 162 // os specific they are initialized in os::init_system_properties_values(). | |
| 163 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
| 164 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
| 165 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
| 166 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
| 167 _java_home = new SystemProperty("java.home", NULL, true); | |
| 168 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
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169 #ifdef GRAAL |
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170 _compiler_class_path = new SystemProperty("compiler.class.path", NULL, true); |
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171 #endif |
| 0 | 172 |
| 173 _java_class_path = new SystemProperty("java.class.path", "", true); | |
| 174 | |
| 175 // Add to System Property list. | |
| 176 PropertyList_add(&_system_properties, _java_ext_dirs); | |
| 177 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
| 178 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
| 179 PropertyList_add(&_system_properties, _java_library_path); | |
| 180 PropertyList_add(&_system_properties, _java_home); | |
| 181 PropertyList_add(&_system_properties, _java_class_path); | |
| 182 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
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183 #ifdef GRAAL |
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184 PropertyList_add(&_system_properties, _compiler_class_path); |
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185 #endif |
| 0 | 186 |
| 187 // Set OS specific system properties values | |
| 188 os::init_system_properties_values(); | |
| 189 } | |
| 190 | |
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191 |
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192 // Update/Initialize System properties after JDK version number is known |
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193 void Arguments::init_version_specific_system_properties() { |
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194 enum { bufsz = 16 }; |
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195 char buffer[bufsz]; |
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196 const char* spec_vendor = "Sun Microsystems Inc."; |
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197 uint32_t spec_version = 0; |
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198 |
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199 if (JDK_Version::is_gte_jdk17x_version()) { |
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200 spec_vendor = "Oracle Corporation"; |
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201 spec_version = JDK_Version::current().major_version(); |
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202 } |
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203 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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204 |
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205 PropertyList_add(&_system_properties, |
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206 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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207 PropertyList_add(&_system_properties, |
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208 new SystemProperty("java.vm.specification.version", buffer, false)); |
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209 PropertyList_add(&_system_properties, |
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210 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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211 } |
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212 |
| 242 | 213 /** |
| 214 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
| 215 * When a flag is eliminated, it can be added to this list in order to | |
| 216 * continue accepting this flag on the command-line, while issuing a warning | |
| 217 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
| 218 * limit, we flatly refuse to admit the existence of the flag. This allows | |
| 219 * a flag to die correctly over JDK releases using HSX. | |
| 220 */ | |
| 221 typedef struct { | |
| 222 const char* name; | |
| 223 JDK_Version obsoleted_in; // when the flag went away | |
| 224 JDK_Version accept_until; // which version to start denying the existence | |
| 225 } ObsoleteFlag; | |
| 0 | 226 |
| 242 | 227 static ObsoleteFlag obsolete_jvm_flags[] = { |
| 228 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 229 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 230 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 231 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 232 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 233 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 234 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 235 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 236 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 237 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 238 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 239 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 240 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 241 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
| 1064 | 242 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
| 243 { "DefaultInitialRAMFraction", | |
| 244 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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245 { "UseDepthFirstScavengeOrder", |
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246 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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247 { "HandlePromotionFailure", |
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248 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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249 { "MaxLiveObjectEvacuationRatio", |
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250 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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251 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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252 { "UseParallelOldGCCompacting", |
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253 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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254 { "UseParallelDensePrefixUpdate", |
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255 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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256 { "UseParallelOldGCDensePrefix", |
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257 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
| 2460 | 258 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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259 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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260 #ifdef PRODUCT |
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261 { "DesiredMethodLimit", |
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262 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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263 #endif // PRODUCT |
| 242 | 264 { NULL, JDK_Version(0), JDK_Version(0) } |
| 265 }; | |
| 266 | |
| 267 // Returns true if the flag is obsolete and fits into the range specified | |
| 268 // for being ignored. In the case that the flag is ignored, the 'version' | |
| 269 // value is filled in with the version number when the flag became | |
| 270 // obsolete so that that value can be displayed to the user. | |
| 271 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
| 0 | 272 int i = 0; |
| 242 | 273 assert(version != NULL, "Must provide a version buffer"); |
| 274 while (obsolete_jvm_flags[i].name != NULL) { | |
| 275 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
| 0 | 276 // <flag>=xxx form |
| 277 // [-|+]<flag> form | |
| 242 | 278 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
| 0 | 279 ((s[0] == '+' || s[0] == '-') && |
| 242 | 280 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
| 281 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
| 282 *version = flag_status.obsoleted_in; | |
| 283 return true; | |
| 284 } | |
| 0 | 285 } |
| 286 i++; | |
| 287 } | |
| 288 return false; | |
| 289 } | |
| 290 | |
| 291 // Constructs the system class path (aka boot class path) from the following | |
| 292 // components, in order: | |
| 293 // | |
| 294 // prefix // from -Xbootclasspath/p:... | |
| 295 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
| 296 // base // from os::get_system_properties() or -Xbootclasspath= | |
| 297 // suffix // from -Xbootclasspath/a:... | |
| 298 // | |
| 299 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
| 300 // directories are added to the sysclasspath just before the base. | |
| 301 // | |
| 302 // This could be AllStatic, but it isn't needed after argument processing is | |
| 303 // complete. | |
| 304 class SysClassPath: public StackObj { | |
| 305 public: | |
| 306 SysClassPath(const char* base); | |
| 307 ~SysClassPath(); | |
| 308 | |
| 309 inline void set_base(const char* base); | |
| 310 inline void add_prefix(const char* prefix); | |
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311 inline void add_suffix_to_prefix(const char* suffix); |
| 0 | 312 inline void add_suffix(const char* suffix); |
| 313 inline void reset_path(const char* base); | |
| 314 | |
| 315 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
| 316 // property. Must be called after all command-line arguments have been | |
| 317 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
| 318 // combined_path(). | |
| 319 void expand_endorsed(); | |
| 320 | |
| 321 inline const char* get_base() const { return _items[_scp_base]; } | |
| 322 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
| 323 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
| 324 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
| 325 | |
| 326 // Combine all the components into a single c-heap-allocated string; caller | |
| 327 // must free the string if/when no longer needed. | |
| 328 char* combined_path(); | |
| 329 | |
| 330 private: | |
| 331 // Utility routines. | |
| 332 static char* add_to_path(const char* path, const char* str, bool prepend); | |
| 333 static char* add_jars_to_path(char* path, const char* directory); | |
| 334 | |
| 335 inline void reset_item_at(int index); | |
| 336 | |
| 337 // Array indices for the items that make up the sysclasspath. All except the | |
| 338 // base are allocated in the C heap and freed by this class. | |
| 339 enum { | |
| 340 _scp_prefix, // from -Xbootclasspath/p:... | |
| 341 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
| 342 _scp_base, // the default sysclasspath | |
| 343 _scp_suffix, // from -Xbootclasspath/a:... | |
| 344 _scp_nitems // the number of items, must be last. | |
| 345 }; | |
| 346 | |
| 347 const char* _items[_scp_nitems]; | |
| 348 DEBUG_ONLY(bool _expansion_done;) | |
| 349 }; | |
| 350 | |
| 351 SysClassPath::SysClassPath(const char* base) { | |
| 352 memset(_items, 0, sizeof(_items)); | |
| 353 _items[_scp_base] = base; | |
| 354 DEBUG_ONLY(_expansion_done = false;) | |
| 355 } | |
| 356 | |
| 357 SysClassPath::~SysClassPath() { | |
| 358 // Free everything except the base. | |
| 359 for (int i = 0; i < _scp_nitems; ++i) { | |
| 360 if (i != _scp_base) reset_item_at(i); | |
| 361 } | |
| 362 DEBUG_ONLY(_expansion_done = false;) | |
| 363 } | |
| 364 | |
| 365 inline void SysClassPath::set_base(const char* base) { | |
| 366 _items[_scp_base] = base; | |
| 367 } | |
| 368 | |
| 369 inline void SysClassPath::add_prefix(const char* prefix) { | |
| 370 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
| 371 } | |
| 372 | |
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373 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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374 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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375 } |
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376 |
| 0 | 377 inline void SysClassPath::add_suffix(const char* suffix) { |
| 378 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
| 379 } | |
| 380 | |
| 381 inline void SysClassPath::reset_item_at(int index) { | |
| 382 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
| 383 if (_items[index] != NULL) { | |
| 384 FREE_C_HEAP_ARRAY(char, _items[index]); | |
| 385 _items[index] = NULL; | |
| 386 } | |
| 387 } | |
| 388 | |
| 389 inline void SysClassPath::reset_path(const char* base) { | |
| 390 // Clear the prefix and suffix. | |
| 391 reset_item_at(_scp_prefix); | |
| 392 reset_item_at(_scp_suffix); | |
| 393 set_base(base); | |
| 394 } | |
| 395 | |
| 396 //------------------------------------------------------------------------------ | |
| 397 | |
| 398 void SysClassPath::expand_endorsed() { | |
| 399 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
| 400 | |
| 401 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
| 402 if (path == NULL) { | |
| 403 path = Arguments::get_endorsed_dir(); | |
| 404 assert(path != NULL, "no default for java.endorsed.dirs"); | |
| 405 } | |
| 406 | |
| 407 char* expanded_path = NULL; | |
| 408 const char separator = *os::path_separator(); | |
| 409 const char* const end = path + strlen(path); | |
| 410 while (path < end) { | |
| 411 const char* tmp_end = strchr(path, separator); | |
| 412 if (tmp_end == NULL) { | |
| 413 expanded_path = add_jars_to_path(expanded_path, path); | |
| 414 path = end; | |
| 415 } else { | |
| 416 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1); | |
| 417 memcpy(dirpath, path, tmp_end - path); | |
| 418 dirpath[tmp_end - path] = '\0'; | |
| 419 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
| 420 FREE_C_HEAP_ARRAY(char, dirpath); | |
| 421 path = tmp_end + 1; | |
| 422 } | |
| 423 } | |
| 424 _items[_scp_endorsed] = expanded_path; | |
| 425 DEBUG_ONLY(_expansion_done = true;) | |
| 426 } | |
| 427 | |
| 428 // Combine the bootclasspath elements, some of which may be null, into a single | |
| 429 // c-heap-allocated string. | |
| 430 char* SysClassPath::combined_path() { | |
| 431 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
| 432 assert(_expansion_done, "must call expand_endorsed() first."); | |
| 433 | |
| 434 size_t lengths[_scp_nitems]; | |
| 435 size_t total_len = 0; | |
| 436 | |
| 437 const char separator = *os::path_separator(); | |
| 438 | |
| 439 // Get the lengths. | |
| 440 int i; | |
| 441 for (i = 0; i < _scp_nitems; ++i) { | |
| 442 if (_items[i] != NULL) { | |
| 443 lengths[i] = strlen(_items[i]); | |
| 444 // Include space for the separator char (or a NULL for the last item). | |
| 445 total_len += lengths[i] + 1; | |
| 446 } | |
| 447 } | |
| 448 assert(total_len > 0, "empty sysclasspath not allowed"); | |
| 449 | |
| 450 // Copy the _items to a single string. | |
| 451 char* cp = NEW_C_HEAP_ARRAY(char, total_len); | |
| 452 char* cp_tmp = cp; | |
| 453 for (i = 0; i < _scp_nitems; ++i) { | |
| 454 if (_items[i] != NULL) { | |
| 455 memcpy(cp_tmp, _items[i], lengths[i]); | |
| 456 cp_tmp += lengths[i]; | |
| 457 *cp_tmp++ = separator; | |
| 458 } | |
| 459 } | |
| 460 *--cp_tmp = '\0'; // Replace the extra separator. | |
| 461 return cp; | |
| 462 } | |
| 463 | |
| 464 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 465 char* | |
| 466 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
| 467 char *cp; | |
| 468 | |
| 469 assert(str != NULL, "just checking"); | |
| 470 if (path == NULL) { | |
| 471 size_t len = strlen(str) + 1; | |
| 472 cp = NEW_C_HEAP_ARRAY(char, len); | |
| 473 memcpy(cp, str, len); // copy the trailing null | |
| 474 } else { | |
| 475 const char separator = *os::path_separator(); | |
| 476 size_t old_len = strlen(path); | |
| 477 size_t str_len = strlen(str); | |
| 478 size_t len = old_len + str_len + 2; | |
| 479 | |
| 480 if (prepend) { | |
| 481 cp = NEW_C_HEAP_ARRAY(char, len); | |
| 482 char* cp_tmp = cp; | |
| 483 memcpy(cp_tmp, str, str_len); | |
| 484 cp_tmp += str_len; | |
| 485 *cp_tmp = separator; | |
| 486 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
| 487 FREE_C_HEAP_ARRAY(char, path); | |
| 488 } else { | |
| 489 cp = REALLOC_C_HEAP_ARRAY(char, path, len); | |
| 490 char* cp_tmp = cp + old_len; | |
| 491 *cp_tmp = separator; | |
| 492 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
| 493 } | |
| 494 } | |
| 495 return cp; | |
| 496 } | |
| 497 | |
| 498 // Scan the directory and append any jar or zip files found to path. | |
| 499 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 500 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
| 501 DIR* dir = os::opendir(directory); | |
| 502 if (dir == NULL) return path; | |
| 503 | |
| 504 char dir_sep[2] = { '\0', '\0' }; | |
| 505 size_t directory_len = strlen(directory); | |
| 506 const char fileSep = *os::file_separator(); | |
| 507 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
| 508 | |
| 509 /* Scan the directory for jars/zips, appending them to path. */ | |
| 510 struct dirent *entry; | |
| 511 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory)); | |
| 512 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { | |
| 513 const char* name = entry->d_name; | |
| 514 const char* ext = name + strlen(name) - 4; | |
| 515 bool isJarOrZip = ext > name && | |
| 516 (os::file_name_strcmp(ext, ".jar") == 0 || | |
| 517 os::file_name_strcmp(ext, ".zip") == 0); | |
| 518 if (isJarOrZip) { | |
| 519 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name)); | |
| 520 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); | |
| 521 path = add_to_path(path, jarpath, false); | |
| 522 FREE_C_HEAP_ARRAY(char, jarpath); | |
| 523 } | |
| 524 } | |
| 525 FREE_C_HEAP_ARRAY(char, dbuf); | |
| 526 os::closedir(dir); | |
| 527 return path; | |
| 528 } | |
| 529 | |
| 530 // Parses a memory size specification string. | |
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531 static bool atomull(const char *s, julong* result) { |
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532 julong n = 0; |
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533 int args_read = sscanf(s, os::julong_format_specifier(), &n); |
| 0 | 534 if (args_read != 1) { |
| 535 return false; | |
| 536 } | |
| 537 while (*s != '\0' && isdigit(*s)) { | |
| 538 s++; | |
| 539 } | |
| 540 // 4705540: illegal if more characters are found after the first non-digit | |
| 541 if (strlen(s) > 1) { | |
| 542 return false; | |
| 543 } | |
| 544 switch (*s) { | |
| 545 case 'T': case 't': | |
| 546 *result = n * G * K; | |
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547 // Check for overflow. |
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548 if (*result/((julong)G * K) != n) return false; |
| 0 | 549 return true; |
| 550 case 'G': case 'g': | |
| 551 *result = n * G; | |
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552 if (*result/G != n) return false; |
| 0 | 553 return true; |
| 554 case 'M': case 'm': | |
| 555 *result = n * M; | |
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556 if (*result/M != n) return false; |
| 0 | 557 return true; |
| 558 case 'K': case 'k': | |
| 559 *result = n * K; | |
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560 if (*result/K != n) return false; |
| 0 | 561 return true; |
| 562 case '\0': | |
| 563 *result = n; | |
| 564 return true; | |
| 565 default: | |
| 566 return false; | |
| 567 } | |
| 568 } | |
| 569 | |
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570 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
| 0 | 571 if (size < min_size) return arg_too_small; |
| 572 // Check that size will fit in a size_t (only relevant on 32-bit) | |
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573 if (size > max_uintx) return arg_too_big; |
| 0 | 574 return arg_in_range; |
| 575 } | |
| 576 | |
| 577 // Describe an argument out of range error | |
| 578 void Arguments::describe_range_error(ArgsRange errcode) { | |
| 579 switch(errcode) { | |
| 580 case arg_too_big: | |
| 581 jio_fprintf(defaultStream::error_stream(), | |
| 582 "The specified size exceeds the maximum " | |
| 583 "representable size.\n"); | |
| 584 break; | |
| 585 case arg_too_small: | |
| 586 case arg_unreadable: | |
| 587 case arg_in_range: | |
| 588 // do nothing for now | |
| 589 break; | |
| 590 default: | |
| 591 ShouldNotReachHere(); | |
| 592 } | |
| 593 } | |
| 594 | |
| 595 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
| 596 return CommandLineFlags::boolAtPut(name, &value, origin); | |
| 597 } | |
| 598 | |
| 599 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
| 600 double v; | |
| 601 if (sscanf(value, "%lf", &v) != 1) { | |
| 602 return false; | |
| 603 } | |
| 604 | |
| 605 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
| 606 return true; | |
| 607 } | |
| 608 return false; | |
| 609 } | |
| 610 | |
| 611 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
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612 julong v; |
| 0 | 613 intx intx_v; |
| 614 bool is_neg = false; | |
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615 // Check the sign first since atomull() parses only unsigned values. |
| 0 | 616 if (*value == '-') { |
| 617 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
| 618 return false; | |
| 619 } | |
| 620 value++; | |
| 621 is_neg = true; | |
| 622 } | |
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623 if (!atomull(value, &v)) { |
| 0 | 624 return false; |
| 625 } | |
| 626 intx_v = (intx) v; | |
| 627 if (is_neg) { | |
| 628 intx_v = -intx_v; | |
| 629 } | |
| 630 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
| 631 return true; | |
| 632 } | |
| 633 uintx uintx_v = (uintx) v; | |
| 634 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
| 635 return true; | |
| 636 } | |
| 1064 | 637 uint64_t uint64_t_v = (uint64_t) v; |
| 638 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
| 639 return true; | |
| 640 } | |
| 0 | 641 return false; |
| 642 } | |
| 643 | |
| 644 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
| 645 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
| 646 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
| 647 FREE_C_HEAP_ARRAY(char, value); | |
| 648 return true; | |
| 649 } | |
| 650 | |
| 651 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
| 652 const char* old_value = ""; | |
| 653 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
| 654 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
| 655 size_t new_len = strlen(new_value); | |
| 656 const char* value; | |
| 657 char* free_this_too = NULL; | |
| 658 if (old_len == 0) { | |
| 659 value = new_value; | |
| 660 } else if (new_len == 0) { | |
| 661 value = old_value; | |
| 662 } else { | |
| 663 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1); | |
| 664 // each new setting adds another LINE to the switch: | |
| 665 sprintf(buf, "%s\n%s", old_value, new_value); | |
| 666 value = buf; | |
| 667 free_this_too = buf; | |
| 668 } | |
| 669 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
| 670 // CommandLineFlags always returns a pointer that needs freeing. | |
| 671 FREE_C_HEAP_ARRAY(char, value); | |
| 672 if (free_this_too != NULL) { | |
| 673 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
| 674 FREE_C_HEAP_ARRAY(char, free_this_too); | |
| 675 } | |
| 676 return true; | |
| 677 } | |
| 678 | |
| 679 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
| 680 | |
| 681 // range of acceptable characters spelled out for portability reasons | |
| 682 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
| 683 #define BUFLEN 255 | |
| 684 char name[BUFLEN+1]; | |
| 685 char dummy; | |
| 686 | |
| 687 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 688 return set_bool_flag(name, false, origin); | |
| 689 } | |
| 690 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 691 return set_bool_flag(name, true, origin); | |
| 692 } | |
| 693 | |
| 694 char punct; | |
| 695 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
| 696 const char* value = strchr(arg, '=') + 1; | |
| 697 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 698 if (flag != NULL && flag->is_ccstr()) { | |
| 699 if (flag->ccstr_accumulates()) { | |
| 700 return append_to_string_flag(name, value, origin); | |
| 701 } else { | |
| 702 if (value[0] == '\0') { | |
| 703 value = NULL; | |
| 704 } | |
| 705 return set_string_flag(name, value, origin); | |
| 706 } | |
| 707 } | |
| 708 } | |
| 709 | |
| 710 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
| 711 const char* value = strchr(arg, '=') + 1; | |
| 712 // -XX:Foo:=xxx will reset the string flag to the given value. | |
| 713 if (value[0] == '\0') { | |
| 714 value = NULL; | |
| 715 } | |
| 716 return set_string_flag(name, value, origin); | |
| 717 } | |
| 718 | |
| 719 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
| 720 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
| 721 #define NUMBER_RANGE "[0123456789]" | |
| 722 char value[BUFLEN + 1]; | |
| 723 char value2[BUFLEN + 1]; | |
| 724 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
| 725 // Looks like a floating-point number -- try again with more lenient format string | |
| 726 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
| 727 return set_fp_numeric_flag(name, value, origin); | |
| 728 } | |
| 729 } | |
| 730 | |
| 731 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
| 732 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
| 733 return set_numeric_flag(name, value, origin); | |
| 734 } | |
| 735 | |
| 736 return false; | |
| 737 } | |
| 738 | |
| 739 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
| 740 assert(bldarray != NULL, "illegal argument"); | |
| 741 | |
| 742 if (arg == NULL) { | |
| 743 return; | |
| 744 } | |
| 745 | |
| 746 int index = *count; | |
| 747 | |
| 748 // expand the array and add arg to the last element | |
| 749 (*count)++; | |
| 750 if (*bldarray == NULL) { | |
| 751 *bldarray = NEW_C_HEAP_ARRAY(char*, *count); | |
| 752 } else { | |
| 753 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count); | |
| 754 } | |
| 755 (*bldarray)[index] = strdup(arg); | |
| 756 } | |
| 757 | |
| 758 void Arguments::build_jvm_args(const char* arg) { | |
| 759 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
| 760 } | |
| 761 | |
| 762 void Arguments::build_jvm_flags(const char* arg) { | |
| 763 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
| 764 } | |
|
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765 #ifdef GRAAL |
|
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|
766 void Arguments::add_graal_arg(const char* arg) { |
|
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|
767 add_string(&_graal_args_array, &_num_graal_args, arg); |
|
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768 } |
|
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|
769 #endif |
| 0 | 770 |
| 771 // utility function to return a string that concatenates all | |
| 772 // strings in a given char** array | |
| 773 const char* Arguments::build_resource_string(char** args, int count) { | |
| 774 if (args == NULL || count == 0) { | |
| 775 return NULL; | |
| 776 } | |
| 777 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
| 778 for (int i = 1; i < count; i++) { | |
| 779 length += strlen(args[i]) + 1; // add 1 for a space | |
| 780 } | |
| 781 char* s = NEW_RESOURCE_ARRAY(char, length); | |
| 782 strcpy(s, args[0]); | |
| 783 for (int j = 1; j < count; j++) { | |
| 784 strcat(s, " "); | |
| 785 strcat(s, args[j]); | |
| 786 } | |
| 787 return (const char*) s; | |
| 788 } | |
| 789 | |
| 790 void Arguments::print_on(outputStream* st) { | |
| 791 st->print_cr("VM Arguments:"); | |
| 792 if (num_jvm_flags() > 0) { | |
| 793 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
| 794 } | |
| 795 if (num_jvm_args() > 0) { | |
| 796 st->print("jvm_args: "); print_jvm_args_on(st); | |
| 797 } | |
| 798 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
| 799 st->print_cr("Launcher Type: %s", _sun_java_launcher); | |
| 800 } | |
| 801 | |
| 802 void Arguments::print_jvm_flags_on(outputStream* st) { | |
| 803 if (_num_jvm_flags > 0) { | |
| 804 for (int i=0; i < _num_jvm_flags; i++) { | |
| 805 st->print("%s ", _jvm_flags_array[i]); | |
| 806 } | |
| 807 st->print_cr(""); | |
| 808 } | |
| 809 } | |
| 810 | |
| 811 void Arguments::print_jvm_args_on(outputStream* st) { | |
| 812 if (_num_jvm_args > 0) { | |
| 813 for (int i=0; i < _num_jvm_args; i++) { | |
| 814 st->print("%s ", _jvm_args_array[i]); | |
| 815 } | |
| 816 st->print_cr(""); | |
| 817 } | |
| 818 } | |
| 819 | |
| 242 | 820 bool Arguments::process_argument(const char* arg, |
| 821 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
| 822 | |
| 823 JDK_Version since = JDK_Version(); | |
| 0 | 824 |
| 3250 | 825 if (parse_argument(arg, origin) || ignore_unrecognized) { |
| 826 return true; | |
| 0 | 827 } |
| 3250 | 828 |
| 829 const char * const argname = *arg == '+' || *arg == '-' ? arg + 1 : arg; | |
| 830 if (is_newly_obsolete(arg, &since)) { | |
| 831 char version[256]; | |
| 832 since.to_string(version, sizeof(version)); | |
| 833 warning("ignoring option %s; support was removed in %s", argname, version); | |
| 834 return true; | |
| 835 } | |
| 836 | |
| 837 jio_fprintf(defaultStream::error_stream(), | |
| 838 "Unrecognized VM option '%s'\n", argname); | |
| 839 // allow for commandline "commenting out" options like -XX:#+Verbose | |
| 840 return arg[0] == '#'; | |
| 0 | 841 } |
| 842 | |
| 843 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
| 844 FILE* stream = fopen(file_name, "rb"); | |
| 845 if (stream == NULL) { | |
| 846 if (should_exist) { | |
| 847 jio_fprintf(defaultStream::error_stream(), | |
| 848 "Could not open settings file %s\n", file_name); | |
| 849 return false; | |
| 850 } else { | |
| 851 return true; | |
| 852 } | |
| 853 } | |
| 854 | |
| 855 char token[1024]; | |
| 856 int pos = 0; | |
| 857 | |
| 858 bool in_white_space = true; | |
| 859 bool in_comment = false; | |
| 860 bool in_quote = false; | |
| 861 char quote_c = 0; | |
| 862 bool result = true; | |
| 863 | |
| 864 int c = getc(stream); | |
| 865 while(c != EOF) { | |
| 866 if (in_white_space) { | |
| 867 if (in_comment) { | |
| 868 if (c == '\n') in_comment = false; | |
| 869 } else { | |
| 870 if (c == '#') in_comment = true; | |
| 871 else if (!isspace(c)) { | |
| 872 in_white_space = false; | |
| 873 token[pos++] = c; | |
| 874 } | |
| 875 } | |
| 876 } else { | |
| 877 if (c == '\n' || (!in_quote && isspace(c))) { | |
| 878 // token ends at newline, or at unquoted whitespace | |
| 879 // this allows a way to include spaces in string-valued options | |
| 880 token[pos] = '\0'; | |
| 881 logOption(token); | |
| 882 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 883 build_jvm_flags(token); | |
| 884 pos = 0; | |
| 885 in_white_space = true; | |
| 886 in_quote = false; | |
| 887 } else if (!in_quote && (c == '\'' || c == '"')) { | |
| 888 in_quote = true; | |
| 889 quote_c = c; | |
| 890 } else if (in_quote && (c == quote_c)) { | |
| 891 in_quote = false; | |
| 892 } else { | |
| 893 token[pos++] = c; | |
| 894 } | |
| 895 } | |
| 896 c = getc(stream); | |
| 897 } | |
| 898 if (pos > 0) { | |
| 899 token[pos] = '\0'; | |
| 900 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 901 build_jvm_flags(token); | |
| 902 } | |
| 903 fclose(stream); | |
| 904 return result; | |
| 905 } | |
| 906 | |
| 907 //============================================================================================================= | |
| 908 // Parsing of properties (-D) | |
| 909 | |
| 910 const char* Arguments::get_property(const char* key) { | |
| 911 return PropertyList_get_value(system_properties(), key); | |
| 912 } | |
| 913 | |
| 914 bool Arguments::add_property(const char* prop) { | |
| 915 const char* eq = strchr(prop, '='); | |
| 916 char* key; | |
| 917 // ns must be static--its address may be stored in a SystemProperty object. | |
| 918 const static char ns[1] = {0}; | |
| 919 char* value = (char *)ns; | |
| 920 | |
| 921 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
| 922 key = AllocateHeap(key_len + 1, "add_property"); | |
| 923 strncpy(key, prop, key_len); | |
| 924 key[key_len] = '\0'; | |
| 925 | |
| 926 if (eq != NULL) { | |
| 927 size_t value_len = strlen(prop) - key_len - 1; | |
| 928 value = AllocateHeap(value_len + 1, "add_property"); | |
| 929 strncpy(value, &prop[key_len + 1], value_len + 1); | |
| 930 } | |
| 931 | |
| 932 if (strcmp(key, "java.compiler") == 0) { | |
| 933 process_java_compiler_argument(value); | |
| 934 FreeHeap(key); | |
| 935 if (eq != NULL) { | |
| 936 FreeHeap(value); | |
| 937 } | |
| 938 return true; | |
| 691 | 939 } else if (strcmp(key, "sun.java.command") == 0) { |
| 0 | 940 _java_command = value; |
| 941 | |
|
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kevinw
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942 // Record value in Arguments, but let it get passed to Java. |
| 691 | 943 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
| 0 | 944 // launcher.pid property is private and is processed |
| 945 // in process_sun_java_launcher_properties(); | |
| 946 // the sun.java.launcher property is passed on to the java application | |
| 947 FreeHeap(key); | |
| 948 if (eq != NULL) { | |
| 949 FreeHeap(value); | |
| 950 } | |
| 951 return true; | |
| 691 | 952 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 0 | 953 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 954 // its value without going through the property list or making a Java call. | |
| 955 _java_vendor_url_bug = value; | |
| 691 | 956 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 957 PropertyList_unique_add(&_system_properties, key, value, true); | |
| 958 return true; | |
| 0 | 959 } |
| 960 // Create new property and add at the end of the list | |
| 961 PropertyList_unique_add(&_system_properties, key, value); | |
| 962 return true; | |
| 963 } | |
| 964 | |
| 965 //=========================================================================================================== | |
| 966 // Setting int/mixed/comp mode flags | |
| 967 | |
| 968 void Arguments::set_mode_flags(Mode mode) { | |
| 969 // Set up default values for all flags. | |
| 970 // If you add a flag to any of the branches below, | |
| 971 // add a default value for it here. | |
| 972 set_java_compiler(false); | |
| 973 _mode = mode; | |
| 974 | |
| 975 // Ensure Agent_OnLoad has the correct initial values. | |
| 976 // This may not be the final mode; mode may change later in onload phase. | |
| 977 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
|
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978 (char*)VM_Version::vm_info_string(), false); |
| 0 | 979 |
| 980 UseInterpreter = true; | |
| 981 UseCompiler = true; | |
| 982 UseLoopCounter = true; | |
| 983 | |
|
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984 #ifndef ZERO |
|
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985 // Turn these off for mixed and comp. Leave them on for Zero. |
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986 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
|
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987 UseFastAccessorMethods = (mode == _int); |
|
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988 } |
|
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989 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
|
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990 UseFastEmptyMethods = (mode == _int); |
|
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991 } |
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992 #endif |
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993 |
| 0 | 994 // Default values may be platform/compiler dependent - |
| 995 // use the saved values | |
| 996 ClipInlining = Arguments::_ClipInlining; | |
| 997 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
| 998 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
| 999 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
| 1000 | |
| 1001 // Change from defaults based on mode | |
| 1002 switch (mode) { | |
| 1003 default: | |
| 1004 ShouldNotReachHere(); | |
| 1005 break; | |
| 1006 case _int: | |
| 1007 UseCompiler = false; | |
| 1008 UseLoopCounter = false; | |
| 1009 AlwaysCompileLoopMethods = false; | |
| 1010 UseOnStackReplacement = false; | |
| 1011 break; | |
| 1012 case _mixed: | |
| 1013 // same as default | |
| 1014 break; | |
| 1015 case _comp: | |
| 1016 UseInterpreter = false; | |
| 1017 BackgroundCompilation = false; | |
| 1018 ClipInlining = false; | |
|
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1019 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
|
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1020 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
|
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1021 // compile a level 4 (C2) and then continue executing it. |
|
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1022 if (TieredCompilation) { |
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1023 Tier3InvokeNotifyFreqLog = 0; |
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1024 Tier4InvocationThreshold = 0; |
|
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changeset
|
1025 } |
| 0 | 1026 break; |
| 1027 } | |
| 1028 } | |
| 1029 | |
| 1030 // Conflict: required to use shared spaces (-Xshare:on), but | |
| 1031 // incompatible command line options were chosen. | |
| 1032 | |
| 1033 static void no_shared_spaces() { | |
| 1034 if (RequireSharedSpaces) { | |
| 1035 jio_fprintf(defaultStream::error_stream(), | |
| 1036 "Class data sharing is inconsistent with other specified options.\n"); | |
| 1037 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
| 1038 } else { | |
| 1039 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 1040 } | |
| 1041 } | |
| 1042 | |
| 1783 | 1043 void Arguments::set_tiered_flags() { |
|
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|
1044 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
| 1783 | 1045 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
|
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1046 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
| 1783 | 1047 } |
| 1048 if (CompilationPolicyChoice < 2) { | |
| 1049 vm_exit_during_initialization( | |
| 1050 "Incompatible compilation policy selected", NULL); | |
| 1051 } | |
|
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1052 // Increase the code cache size - tiered compiles a lot more. |
| 1783 | 1053 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
| 1054 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
| 1055 } | |
| 1056 } | |
| 1057 | |
|
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1058 #ifndef KERNEL |
| 4838 | 1059 static void disable_adaptive_size_policy(const char* collector_name) { |
| 1060 if (UseAdaptiveSizePolicy) { | |
| 1061 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
| 1062 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
| 1063 collector_name); | |
| 1064 } | |
| 1065 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
| 1066 } | |
| 1067 } | |
| 1068 | |
| 0 | 1069 // If the user has chosen ParallelGCThreads > 0, we set UseParNewGC |
| 1070 // if it's not explictly set or unset. If the user has chosen | |
| 1071 // UseParNewGC and not explicitly set ParallelGCThreads we | |
| 1072 // set it, unless this is a single cpu machine. | |
| 1073 void Arguments::set_parnew_gc_flags() { | |
| 1064 | 1074 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
|
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1075 "control point invariant"); |
|
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|
1076 assert(UseParNewGC, "Error"); |
| 0 | 1077 |
| 4838 | 1078 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
| 1079 disable_adaptive_size_policy("UseParNewGC"); | |
|
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1080 |
|
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1081 if (ParallelGCThreads == 0) { |
|
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|
1082 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
1083 Abstract_VM_Version::parallel_worker_threads()); |
| 1064 | 1084 if (ParallelGCThreads == 1) { |
| 0 | 1085 FLAG_SET_DEFAULT(UseParNewGC, false); |
| 1064 | 1086 FLAG_SET_DEFAULT(ParallelGCThreads, 0); |
| 0 | 1087 } |
| 1088 } | |
| 1064 | 1089 if (UseParNewGC) { |
| 1090 // CDS doesn't work with ParNew yet | |
| 0 | 1091 no_shared_spaces(); |
| 1092 | |
| 695 | 1093 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
| 0 | 1094 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
| 1095 // we set them to 1024 and 1024. | |
| 1096 // See CR 6362902. | |
| 1097 if (FLAG_IS_DEFAULT(YoungPLABSize)) { | |
| 1098 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); | |
| 1099 } | |
| 1100 if (FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1101 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); | |
| 1102 } | |
| 1103 | |
| 1064 | 1104 // AlwaysTenure flag should make ParNew promote all at first collection. |
| 0 | 1105 // See CR 6362902. |
| 1106 if (AlwaysTenure) { | |
| 1107 FLAG_SET_CMDLINE(intx, MaxTenuringThreshold, 0); | |
| 1108 } | |
| 695 | 1109 // When using compressed oops, we use local overflow stacks, |
| 1110 // rather than using a global overflow list chained through | |
| 1111 // the klass word of the object's pre-image. | |
| 1112 if (UseCompressedOops && !ParGCUseLocalOverflow) { | |
| 1113 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { | |
| 1114 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); | |
| 1115 } | |
| 1116 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); | |
| 1117 } | |
| 1118 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); | |
| 0 | 1119 } |
| 1120 } | |
| 1121 | |
| 1122 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
| 1123 // sparc/solaris for certain applications, but would gain from | |
| 1124 // further optimization and tuning efforts, and would almost | |
| 1125 // certainly gain from analysis of platform and environment. | |
| 1126 void Arguments::set_cms_and_parnew_gc_flags() { | |
| 1064 | 1127 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
|
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1128 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1129 |
| 0 | 1130 // If we are using CMS, we prefer to UseParNewGC, |
| 1131 // unless explicitly forbidden. | |
|
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1132 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
|
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1133 FLAG_SET_ERGO(bool, UseParNewGC, true); |
| 0 | 1134 } |
| 1135 | |
| 4838 | 1136 // Turn off AdaptiveSizePolicy for CMS until it is complete. |
| 1137 disable_adaptive_size_policy("UseConcMarkSweepGC"); | |
| 0 | 1138 |
| 1139 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
| 1140 // as needed. | |
|
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1141 if (UseParNewGC) { |
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1142 set_parnew_gc_flags(); |
| 0 | 1143 } |
| 1144 | |
|
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1145 // MaxHeapSize is aligned down in collectorPolicy |
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1146 size_t max_heap = align_size_down(MaxHeapSize, |
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1147 CardTableRS::ct_max_alignment_constraint()); |
|
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1148 |
| 0 | 1149 // Now make adjustments for CMS |
|
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1150 intx tenuring_default = (intx)6; |
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1151 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1152 |
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1153 // Preferred young gen size for "short" pauses: |
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1154 // upper bound depends on # of threads and NewRatio. |
| 0 | 1155 const uintx parallel_gc_threads = |
| 1156 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
| 1157 const size_t preferred_max_new_size_unaligned = | |
|
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1158 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1159 size_t preferred_max_new_size = |
| 0 | 1160 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
| 1161 | |
| 1162 // Unless explicitly requested otherwise, size young gen | |
|
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1163 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
|
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1164 |
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1165 // If either MaxNewSize or NewRatio is set on the command line, |
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1166 // assume the user is trying to set the size of the young gen. |
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1167 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1168 |
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1169 // Set MaxNewSize to our calculated preferred_max_new_size unless |
|
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1170 // NewSize was set on the command line and it is larger than |
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1171 // preferred_max_new_size. |
| 0 | 1172 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
|
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1173 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
| 0 | 1174 } else { |
|
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1175 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
| 0 | 1176 } |
| 1064 | 1177 if (PrintGCDetails && Verbose) { |
|
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1178 // Too early to use gclog_or_tty |
|
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1179 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
|
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1180 } |
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1181 |
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1182 // Code along this path potentially sets NewSize and OldSize |
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1183 |
|
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1184 assert(max_heap >= InitialHeapSize, "Error"); |
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1185 assert(max_heap >= NewSize, "Error"); |
| 0 | 1186 |
| 1064 | 1187 if (PrintGCDetails && Verbose) { |
|
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1188 // Too early to use gclog_or_tty |
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1189 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1190 " initial_heap_size: " SIZE_FORMAT |
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1191 " max_heap: " SIZE_FORMAT, |
| 1064 | 1192 min_heap_size(), InitialHeapSize, max_heap); |
|
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1193 } |
|
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1194 size_t min_new = preferred_max_new_size; |
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1195 if (FLAG_IS_CMDLINE(NewSize)) { |
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1196 min_new = NewSize; |
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1197 } |
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1198 if (max_heap > min_new && min_heap_size() > min_new) { |
| 0 | 1199 // Unless explicitly requested otherwise, make young gen |
| 1200 // at least min_new, and at most preferred_max_new_size. | |
| 1201 if (FLAG_IS_DEFAULT(NewSize)) { | |
|
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1202 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1203 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
| 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 NewSize: " SIZE_FORMAT, NewSize); |
|
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1207 } |
| 0 | 1208 } |
| 1209 // Unless explicitly requested otherwise, size old gen | |
|
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1210 // so it's NewRatio x of NewSize. |
| 0 | 1211 if (FLAG_IS_DEFAULT(OldSize)) { |
| 1212 if (max_heap > NewSize) { | |
|
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1213 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
| 1064 | 1214 if (PrintGCDetails && Verbose) { |
|
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1215 // Too early to use gclog_or_tty |
|
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1216 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
|
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1217 } |
| 0 | 1218 } |
| 1219 } | |
| 1220 } | |
| 1221 } | |
| 1222 // Unless explicitly requested otherwise, definitely | |
| 1223 // promote all objects surviving "tenuring_default" scavenges. | |
| 1224 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
| 1225 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
|
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1226 FLAG_SET_ERGO(intx, MaxTenuringThreshold, tenuring_default); |
| 0 | 1227 } |
| 1228 // If we decided above (or user explicitly requested) | |
| 1229 // `promote all' (via MaxTenuringThreshold := 0), | |
| 1230 // prefer minuscule survivor spaces so as not to waste | |
| 1231 // space for (non-existent) survivors | |
| 1232 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
|
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1233 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
| 0 | 1234 } |
| 1235 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
| 1236 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
| 1237 // This is done in order to make ParNew+CMS configuration to work | |
| 1238 // with YoungPLABSize and OldPLABSize options. | |
| 1239 // See CR 6362902. | |
| 1240 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1241 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
|
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1242 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
|
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1243 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
|
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1244 // the value (either from the command line or ergonomics) of |
|
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1245 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
|
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1246 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
|
1145
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|
1247 } else { |
| 0 | 1248 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
| 1249 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
| 1250 // we'll let it to take precedence. | |
| 1251 jio_fprintf(defaultStream::error_stream(), | |
|
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1252 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1253 " options are specified for the CMS collector." |
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1254 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
| 0 | 1255 } |
| 1256 } | |
|
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1257 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
|
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1258 // OldPLAB sizing manually turned off: Use a larger default setting, |
|
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1259 // unless it was manually specified. This is because a too-low value |
|
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|
1260 // will slow down scavenges. |
|
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|
1261 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
|
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|
1262 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
|
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|
1263 } |
|
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|
1264 } |
|
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|
1265 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
|
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|
1266 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
|
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1267 // If either of the static initialization defaults have changed, note this |
|
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|
1268 // modification. |
|
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|
1269 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
|
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|
1270 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
|
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|
1271 } |
| 1284 | 1272 if (PrintGCDetails && Verbose) { |
| 1273 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1274 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1275 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1276 } | |
| 0 | 1277 } |
|
1145
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1278 #endif // KERNEL |
| 0 | 1279 |
|
1571
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|
1280 void set_object_alignment() { |
|
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|
1281 // Object alignment. |
|
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|
1282 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
|
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|
1283 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
|
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1284 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1285 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1286 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1287 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1288 |
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1289 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1290 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1291 |
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1292 // Oop encoding heap max |
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1293 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1294 |
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1295 #ifndef KERNEL |
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1296 // Set CMS global values |
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1297 CompactibleFreeListSpace::set_cms_values(); |
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1298 #endif // KERNEL |
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1299 } |
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1300 |
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1301 bool verify_object_alignment() { |
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1302 // Object alignment. |
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1303 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1304 jio_fprintf(defaultStream::error_stream(), |
|
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1305 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1306 (int)ObjectAlignmentInBytes); |
|
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1307 return false; |
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1308 } |
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1309 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1310 jio_fprintf(defaultStream::error_stream(), |
|
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1311 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
|
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1312 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1313 return false; |
|
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1314 } |
|
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1315 // It does not make sense to have big object alignment |
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1316 // since a space lost due to alignment will be greater |
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1317 // then a saved space from compressed oops. |
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1318 if ((int)ObjectAlignmentInBytes > 256) { |
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1319 jio_fprintf(defaultStream::error_stream(), |
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1320 "error: ObjectAlignmentInBytes=%d must not be greater then 256\n", |
|
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1321 (int)ObjectAlignmentInBytes); |
|
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1322 return false; |
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1323 } |
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1324 // In case page size is very small. |
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1325 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1326 jio_fprintf(defaultStream::error_stream(), |
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1327 "error: ObjectAlignmentInBytes=%d must be less then page size %d\n", |
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1328 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
|
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1329 return false; |
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1330 } |
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1331 return true; |
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1332 } |
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1333 |
|
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1334 inline uintx max_heap_for_compressed_oops() { |
| 1963 | 1335 // Avoid sign flip. |
| 1336 if (OopEncodingHeapMax < MaxPermSize + os::vm_page_size()) { | |
| 1337 return 0; | |
| 1338 } | |
| 1339 LP64_ONLY(return OopEncodingHeapMax - MaxPermSize - os::vm_page_size()); | |
| 1064 | 1340 NOT_LP64(ShouldNotReachHere(); return 0); |
|
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1341 } |
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1342 |
| 0 | 1343 bool Arguments::should_auto_select_low_pause_collector() { |
| 1344 if (UseAutoGCSelectPolicy && | |
| 1345 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
| 1346 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
| 1347 if (PrintGCDetails) { | |
| 1348 // Cannot use gclog_or_tty yet. | |
| 1349 tty->print_cr("Automatic selection of the low pause collector" | |
| 1350 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
| 1351 } | |
| 1352 return true; | |
| 1353 } | |
| 1354 return false; | |
| 1355 } | |
| 1356 | |
| 1357 void Arguments::set_ergonomics_flags() { | |
| 1358 // Parallel GC is not compatible with sharing. If one specifies | |
| 1064 | 1359 // that they want sharing explicitly, do not set ergonomics flags. |
|
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1360 if (DumpSharedSpaces || RequireSharedSpaces) { |
| 0 | 1361 return; |
| 1362 } | |
| 1363 | |
| 4946 | 1364 if (os::is_server_class_machine()) { |
| 0 | 1365 // If no other collector is requested explicitly, |
| 1366 // let the VM select the collector based on | |
| 1367 // machine class and automatic selection policy. | |
| 1368 if (!UseSerialGC && | |
| 1369 !UseConcMarkSweepGC && | |
|
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1370 !UseG1GC && |
| 0 | 1371 !UseParNewGC && |
| 1372 !DumpSharedSpaces && | |
| 1373 FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1374 if (should_auto_select_low_pause_collector()) { | |
| 1375 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
| 1376 } else { | |
| 1377 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
| 1378 } | |
| 1379 no_shared_spaces(); | |
| 1380 } | |
| 1381 } | |
|
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1382 |
| 1010 | 1383 #ifndef ZERO |
|
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1384 #ifdef _LP64 |
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1385 // Check that UseCompressedOops can be set with the max heap size allocated |
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1386 // by ergonomics. |
| 187 | 1387 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
| 1783 | 1388 #if !defined(COMPILER1) || defined(TIERED) |
| 2228 | 1389 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 932 | 1390 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
|
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1391 } |
| 1060 | 1392 #endif |
|
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1393 #ifdef _WIN64 |
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1394 if (UseLargePages && UseCompressedOops) { |
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1395 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1396 // mode, when large pages are specified on windows. |
|
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1397 // This flag could be switched ON if narrow oop base address is set to 0, |
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1398 // see code in Universe::initialize_heap(). |
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1399 Universe::set_narrow_oop_use_implicit_null_checks(false); |
|
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1400 } |
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1401 #endif // _WIN64 |
|
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1402 } else { |
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1403 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 344 | 1404 warning("Max heap size too large for Compressed Oops"); |
|
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1405 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1406 } |
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1407 } |
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1408 // Also checks that certain machines are slower with compressed oops |
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1409 // in vm_version initialization code. |
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1410 #endif // _LP64 |
| 1010 | 1411 #endif // !ZERO |
| 0 | 1412 } |
| 1413 | |
| 1414 void Arguments::set_parallel_gc_flags() { | |
|
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1415 assert(UseParallelGC || UseParallelOldGC, "Error"); |
| 4879 | 1416 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
| 1417 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
| 1418 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
| 0 | 1419 } |
| 4879 | 1420 FLAG_SET_DEFAULT(UseParallelGC, true); |
| 0 | 1421 |
| 1422 // If no heap maximum was requested explicitly, use some reasonable fraction | |
| 1423 // of the physical memory, up to a maximum of 1GB. | |
| 1424 if (UseParallelGC) { | |
|
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1425 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1426 Abstract_VM_Version::parallel_worker_threads()); |
|
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1427 |
| 0 | 1428 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
| 1429 // SurvivorRatio has been set, reset their default values to SurvivorRatio + | |
| 1430 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. | |
| 1431 // See CR 6362902 for details. | |
| 1432 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 1433 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { | |
| 1434 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); | |
| 1435 } | |
| 1436 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { | |
| 1437 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); | |
| 1438 } | |
| 1439 } | |
| 1440 | |
| 1441 if (UseParallelOldGC) { | |
| 1442 // Par compact uses lower default values since they are treated as | |
|
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1443 // minimums. These are different defaults because of the different |
|
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1444 // interpretation and are not ergonomically set. |
| 0 | 1445 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
|
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1446 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
| 0 | 1447 } |
| 1448 if (FLAG_IS_DEFAULT(PermMarkSweepDeadRatio)) { | |
|
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1449 FLAG_SET_DEFAULT(PermMarkSweepDeadRatio, 5); |
| 0 | 1450 } |
| 1451 } | |
| 1452 } | |
|
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1453 if (UseNUMA) { |
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1454 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
|
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1455 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
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1456 } |
| 3885 | 1457 // For those collectors or operating systems (eg, Windows) that do |
| 1458 // not support full UseNUMA, we will map to UseNUMAInterleaving for now | |
| 1459 UseNUMAInterleaving = true; | |
|
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1460 } |
| 0 | 1461 } |
| 1462 | |
|
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1463 void Arguments::set_g1_gc_flags() { |
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1464 assert(UseG1GC, "Error"); |
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1465 #ifdef COMPILER1 |
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1466 FastTLABRefill = false; |
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1467 #endif |
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1468 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1469 Abstract_VM_Version::parallel_worker_threads()); |
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1470 if (ParallelGCThreads == 0) { |
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1471 FLAG_SET_DEFAULT(ParallelGCThreads, |
| 751 | 1472 Abstract_VM_Version::parallel_worker_threads()); |
|
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1473 } |
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1474 no_shared_spaces(); |
| 751 | 1475 |
| 1284 | 1476 if (FLAG_IS_DEFAULT(MarkStackSize)) { |
|
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1477 FLAG_SET_DEFAULT(MarkStackSize, 128 * TASKQUEUE_SIZE); |
| 1284 | 1478 } |
| 1479 if (PrintGCDetails && Verbose) { | |
| 1480 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1481 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1482 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1483 } | |
| 1356 | 1484 |
| 1485 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
| 1486 // In G1, we want the default GC overhead goal to be higher than | |
| 1487 // say in PS. So we set it here to 10%. Otherwise the heap might | |
| 1488 // be expanded more aggressively than we would like it to. In | |
| 1489 // fact, even 10% seems to not be high enough in some cases | |
| 1490 // (especially small GC stress tests that the main thing they do | |
| 1491 // is allocation). We might consider increase it further. | |
| 1492 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
| 1493 } | |
|
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1494 } |
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1495 |
| 1064 | 1496 void Arguments::set_heap_size() { |
| 1497 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
| 1498 // Deprecated flag | |
| 1499 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
| 1500 } | |
| 1501 | |
| 1502 const julong phys_mem = | |
| 1503 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
| 1504 : (julong)MaxRAM; | |
| 1505 | |
| 1506 // If the maximum heap size has not been set with -Xmx, | |
| 1507 // then set it as fraction of the size of physical memory, | |
| 1508 // respecting the maximum and minimum sizes of the heap. | |
|
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1509 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
| 1064 | 1510 julong reasonable_max = phys_mem / MaxRAMFraction; |
| 1511 | |
| 1512 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
| 1513 // Small physical memory, so use a minimum fraction of it for the heap | |
| 1514 reasonable_max = phys_mem / MinRAMFraction; | |
| 1515 } else { | |
| 1516 // Not-small physical memory, so require a heap at least | |
| 1517 // as large as MaxHeapSize | |
| 1518 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
| 1519 } | |
| 1520 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
| 1521 // Limit the heap size to ErgoHeapSizeLimit | |
| 1522 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
|
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1523 } |
| 1064 | 1524 if (UseCompressedOops) { |
| 1525 // Limit the heap size to the maximum possible when using compressed oops | |
| 1963 | 1526 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
| 1527 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
| 1528 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
| 1529 // but it should be not less than default MaxHeapSize. | |
| 1530 max_coop_heap -= HeapBaseMinAddress; | |
| 1531 } | |
| 1532 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
| 1064 | 1533 } |
| 1534 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
| 1535 | |
| 1536 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
| 1537 // An initial heap size was specified on the command line, | |
| 1538 // so be sure that the maximum size is consistent. Done | |
| 1539 // after call to allocatable_physical_memory because that | |
| 1540 // method might reduce the allocation size. | |
| 1541 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
| 1542 } | |
| 1543 | |
|
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1544 if (PrintGCDetails && Verbose) { |
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1545 // Cannot use gclog_or_tty yet. |
| 1064 | 1546 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
|
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1547 } |
| 1064 | 1548 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
| 1549 } | |
| 1550 | |
| 1551 // If the initial_heap_size has not been set with InitialHeapSize | |
| 1552 // or -Xms, then set it as fraction of the size of physical memory, | |
| 1553 // respecting the maximum and minimum sizes of the heap. | |
| 1554 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
|
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1555 julong reasonable_minimum = (julong)(OldSize + NewSize); |
|
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1556 |
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1557 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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1558 |
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1559 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
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1560 |
| 1064 | 1561 julong reasonable_initial = phys_mem / InitialRAMFraction; |
| 1562 | |
|
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1563 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
| 1064 | 1564 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1565 | |
| 1566 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
| 1567 | |
| 1568 if (PrintGCDetails && Verbose) { | |
| 1569 // Cannot use gclog_or_tty yet. | |
| 1570 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
|
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1571 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
|
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1572 } |
| 1064 | 1573 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
|
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1574 set_min_heap_size((uintx)reasonable_minimum); |
|
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1575 } |
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1576 } |
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1577 |
| 0 | 1578 // This must be called after ergonomics because we want bytecode rewriting |
| 1579 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
| 1580 void Arguments::set_bytecode_flags() { | |
| 1581 // Better not attempt to store into a read-only space. | |
| 1582 if (UseSharedSpaces) { | |
| 1583 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
| 1584 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1585 } | |
| 1586 | |
| 1587 if (!RewriteBytecodes) { | |
| 1588 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1589 } | |
| 1590 } | |
| 1591 | |
| 1592 // Aggressive optimization flags -XX:+AggressiveOpts | |
| 1593 void Arguments::set_aggressive_opts_flags() { | |
|
17
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|
1594 #ifdef COMPILER2 |
|
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|
1595 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
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|
1596 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
|
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|
1597 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
|
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|
1598 } |
|
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|
1599 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
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|
1600 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
|
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|
1601 } |
|
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|
1602 |
|
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|
1603 // Feed the cache size setting into the JDK |
|
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|
1604 char buffer[1024]; |
|
513
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|
1605 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
|
17
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|
1606 add_property(buffer); |
|
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|
1607 } |
|
416
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|
1608 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
|
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|
1609 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
|
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|
1610 } |
|
17
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|
1611 #endif |
|
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|
1612 |
| 0 | 1613 if (AggressiveOpts) { |
| 61 | 1614 // Sample flag setting code |
| 1615 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
| 1616 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
| 1617 // } | |
| 0 | 1618 } |
| 1619 } | |
| 1620 | |
| 1621 //=========================================================================================================== | |
| 1622 // Parsing of java.compiler property | |
| 1623 | |
| 1624 void Arguments::process_java_compiler_argument(char* arg) { | |
| 1625 // For backwards compatibility, Djava.compiler=NONE or "" | |
| 1626 // causes us to switch to -Xint mode UNLESS -Xdebug | |
| 1627 // is also specified. | |
| 1628 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
| 1629 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
| 1630 } | |
| 1631 } | |
| 1632 | |
| 1633 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
| 1634 _sun_java_launcher = strdup(launcher); | |
|
2302
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|
1635 if (strcmp("gamma", _sun_java_launcher) == 0) { |
|
da091bb67459
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|
1636 _created_by_gamma_launcher = true; |
|
da091bb67459
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|
1637 } |
| 0 | 1638 } |
| 1639 | |
| 1640 bool Arguments::created_by_java_launcher() { | |
| 1641 assert(_sun_java_launcher != NULL, "property must have value"); | |
| 1642 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
| 1643 } | |
| 1644 | |
|
2302
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|
1645 bool Arguments::created_by_gamma_launcher() { |
|
da091bb67459
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|
1646 return _created_by_gamma_launcher; |
|
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|
1647 } |
|
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|
1648 |
| 0 | 1649 //=========================================================================================================== |
| 1650 // Parsing of main arguments | |
| 1651 | |
|
1244
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|
1652 bool Arguments::verify_interval(uintx val, uintx min, |
|
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|
1653 uintx max, const char* name) { |
|
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|
1654 // Returns true iff value is in the inclusive interval [min..max] |
|
745c853ee57f
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|
1655 // false, otherwise. |
|
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|
1656 if (val >= min && val <= max) { |
|
745c853ee57f
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|
1657 return true; |
|
745c853ee57f
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|
1658 } |
|
745c853ee57f
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|
1659 jio_fprintf(defaultStream::error_stream(), |
|
745c853ee57f
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|
1660 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
|
745c853ee57f
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|
1661 " and " UINTX_FORMAT "\n", |
|
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|
1662 name, val, min, max); |
|
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|
1663 return false; |
|
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|
1664 } |
|
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|
1665 |
|
1744
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|
1666 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
|
2366
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|
1667 // Returns true if given value is at least specified min threshold |
|
1744
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|
1668 // false, otherwise. |
|
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|
1669 if (val >= min ) { |
|
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|
1670 return true; |
|
f8c5d1bdaad4
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|
1671 } |
|
f8c5d1bdaad4
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|
1672 jio_fprintf(defaultStream::error_stream(), |
|
2366
1fb790245268
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|
1673 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
|
1744
f8c5d1bdaad4
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|
1674 name, val, min); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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|
1675 return false; |
|
f8c5d1bdaad4
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|
1676 } |
|
f8c5d1bdaad4
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|
1677 |
| 0 | 1678 bool Arguments::verify_percentage(uintx value, const char* name) { |
| 1679 if (value <= 100) { | |
| 1680 return true; | |
| 1681 } | |
| 1682 jio_fprintf(defaultStream::error_stream(), | |
| 1683 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
| 1684 name, value); | |
| 1685 return false; | |
| 1686 } | |
| 1687 | |
| 1064 | 1688 static void force_serial_gc() { |
| 0 | 1689 FLAG_SET_DEFAULT(UseSerialGC, true); |
| 1690 FLAG_SET_DEFAULT(UseParNewGC, false); | |
| 1691 FLAG_SET_DEFAULT(UseConcMarkSweepGC, false); | |
|
945
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932
diff
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|
1692 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
| 0 | 1693 FLAG_SET_DEFAULT(UseParallelGC, false); |
| 1694 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
|
342
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6711316: Open source the Garbage-First garbage collector
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135
diff
changeset
|
1695 FLAG_SET_DEFAULT(UseG1GC, false); |
| 0 | 1696 } |
| 1697 | |
| 1698 static bool verify_serial_gc_flags() { | |
| 1699 return (UseSerialGC && | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
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932
diff
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|
1700 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
|
342
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6711316: Open source the Garbage-First garbage collector
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|
1701 UseParallelGC || UseParallelOldGC)); |
| 0 | 1702 } |
| 1703 | |
|
3767
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3349
diff
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|
1704 // check if do gclog rotation |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1705 // +UseGCLogFileRotation is a must, |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1706 // no gc log rotation when log file not supplied or |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1707 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
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|
1708 void check_gclog_consistency() { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
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|
1709 if (UseGCLogFileRotation) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1710 if ((Arguments::gc_log_filename() == NULL) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
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diff
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|
1711 (NumberOfGCLogFiles == 0) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
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|
1712 (GCLogFileSize == 0)) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1713 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
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|
1714 "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
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parents:
3349
diff
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|
1715 "where num_of_file > 0 and num_of_size > 0\n" |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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|
1716 "GC log rotation is turned off\n"); |
|
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|
1717 UseGCLogFileRotation = false; |
|
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|
1718 } |
|
2a241e764894
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|
1719 } |
|
2a241e764894
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|
1720 |
|
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|
1721 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
|
2a241e764894
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|
1722 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
|
2a241e764894
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3349
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|
1723 jio_fprintf(defaultStream::output_stream(), |
|
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6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1724 "GCLogFileSize changed to minimum 8K\n"); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
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|
1725 } |
|
2a241e764894
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|
1726 } |
|
2a241e764894
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|
1727 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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diff
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|
1728 // Check consistency of GC selection |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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diff
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|
1729 bool Arguments::check_gc_consistency() { |
|
3767
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3349
diff
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|
1730 check_gclog_consistency(); |
|
10
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6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
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|
1731 bool status = true; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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|
1732 // Ensure that the user has not selected conflicting sets |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1733 // of collectors. [Note: this check is merely a user convenience; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1734 // collectors over-ride each other so that only a non-conflicting |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1735 // 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
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0
diff
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|
1736 // may have expected from the combination they asked for. It's |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1737 // better to reduce user confusion by not allowing them to |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1738 // select conflicting combinations. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1739 uint i = 0; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1740 if (UseSerialGC) i++; |
|
28372612af5e
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jmasa
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0
diff
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|
1741 if (UseConcMarkSweepGC || UseParNewGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1742 if (UseParallelGC || UseParallelOldGC) i++; |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
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751
diff
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|
1743 if (UseG1GC) i++; |
|
10
28372612af5e
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diff
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|
1744 if (i > 1) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1745 jio_fprintf(defaultStream::error_stream(), |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1746 "Conflicting collector combinations in option list; " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1747 "please refer to the release notes for the combinations " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1748 "allowed\n"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
changeset
|
1749 status = false; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
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|
1750 } |
|
28372612af5e
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jmasa
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0
diff
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|
1751 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1752 return status; |
|
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6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
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|
1753 } |
|
28372612af5e
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|
1754 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1755 // Check stack pages settings |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1756 bool Arguments::check_stack_pages() |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1757 { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1758 bool status = true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
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|
1759 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1760 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1864
diff
changeset
|
1761 // greater stack shadow pages can't generate instruction to bang stack |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
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1864
diff
changeset
|
1762 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
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|
1763 return status; |
|
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|
1764 } |
|
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|
1765 |
| 0 | 1766 // Check the consistency of vm_init_args |
| 1767 bool Arguments::check_vm_args_consistency() { | |
| 1768 // Method for adding checks for flag consistency. | |
| 1769 // The intent is to warn the user of all possible conflicts, | |
| 1770 // before returning an error. | |
| 1771 // Note: Needs platform-dependent factoring. | |
| 1772 bool status = true; | |
| 1773 | |
| 1774 #if ( (defined(COMPILER2) && defined(SPARC))) | |
| 1775 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
| 1776 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
| 1777 // x86. Normally, VM_Version_init must be called from init_globals in | |
| 1778 // init.cpp, which is called by the initial java thread *after* arguments | |
| 1779 // have been parsed. VM_Version_init gets called twice on sparc. | |
| 1780 extern void VM_Version_init(); | |
| 1781 VM_Version_init(); | |
| 1782 if (!VM_Version::has_v9()) { | |
| 1783 jio_fprintf(defaultStream::error_stream(), | |
| 1784 "V8 Machine detected, Server requires V9\n"); | |
| 1785 status = false; | |
| 1786 } | |
| 1787 #endif /* COMPILER2 && SPARC */ | |
| 1788 | |
| 1789 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
| 1790 // builds so the cost of stack banging can be measured. | |
| 1791 #if (defined(PRODUCT) && defined(SOLARIS)) | |
| 1792 if (!UseBoundThreads && !UseStackBanging) { | |
| 1793 jio_fprintf(defaultStream::error_stream(), | |
| 1794 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
| 1795 | |
| 1796 status = false; | |
| 1797 } | |
| 1798 #endif | |
| 1799 | |
| 1800 if (TLABRefillWasteFraction == 0) { | |
| 1801 jio_fprintf(defaultStream::error_stream(), | |
| 1802 "TLABRefillWasteFraction should be a denominator, " | |
| 1803 "not " SIZE_FORMAT "\n", | |
| 1804 TLABRefillWasteFraction); | |
| 1805 status = false; | |
| 1806 } | |
| 1807 | |
|
10
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|
1808 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
| 0 | 1809 "AdaptiveSizePolicyWeight"); |
|
10
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|
1810 status = status && verify_percentage(AdaptivePermSizeWeight, "AdaptivePermSizeWeight"); |
|
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|
1811 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
|
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|
1812 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
|
28372612af5e
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|
1813 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
| 0 | 1814 |
| 1815 if (MinHeapFreeRatio > MaxHeapFreeRatio) { | |
| 1816 jio_fprintf(defaultStream::error_stream(), | |
| 1817 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
| 1818 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
| 1819 MinHeapFreeRatio, MaxHeapFreeRatio); | |
| 1820 status = false; | |
| 1821 } | |
| 1822 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
| 1823 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
| 1824 | |
| 1825 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
| 1826 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
| 1827 } | |
| 1828 | |
|
483
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449
diff
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|
1829 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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449
diff
changeset
|
1830 // Settings to encourage splitting. |
|
0f773163217d
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449
diff
changeset
|
1831 if (!FLAG_IS_CMDLINE(NewRatio)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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449
diff
changeset
|
1832 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
|
0f773163217d
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449
diff
changeset
|
1833 } |
|
0f773163217d
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449
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|
1834 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
|
0f773163217d
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449
diff
changeset
|
1835 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
|
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449
diff
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|
1836 } |
|
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|
1837 } |
|
0f773163217d
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|
1838 |
|
10
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|
1839 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
|
28372612af5e
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|
1840 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
| 0 | 1841 if (GCTimeLimit == 100) { |
| 1842 // Turn off gc-overhead-limit-exceeded checks | |
| 1843 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
| 1844 } | |
| 1845 | |
|
10
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|
1846 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
| 0 | 1847 |
|
10
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|
1848 status = status && check_gc_consistency(); |
|
1744
f8c5d1bdaad4
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|
1849 status = status && check_stack_pages(); |
| 0 | 1850 |
| 1851 if (_has_alloc_profile) { | |
| 1852 if (UseParallelGC || UseParallelOldGC) { | |
| 1853 jio_fprintf(defaultStream::error_stream(), | |
| 1854 "error: invalid argument combination.\n" | |
| 1855 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1856 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
| 1857 status = false; | |
| 1858 } | |
| 1859 if (UseConcMarkSweepGC) { | |
| 1860 jio_fprintf(defaultStream::error_stream(), | |
| 1861 "error: invalid argument combination.\n" | |
| 1862 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1863 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
| 1864 status = false; | |
| 1865 } | |
| 1866 } | |
| 1867 | |
| 1868 if (CMSIncrementalMode) { | |
| 1869 if (!UseConcMarkSweepGC) { | |
| 1870 jio_fprintf(defaultStream::error_stream(), | |
| 1871 "error: invalid argument combination.\n" | |
| 1872 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
| 1873 "selected in order\nto use CMSIncrementalMode.\n"); | |
| 1874 status = false; | |
| 1875 } else { | |
|
10
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|
1876 status = status && verify_percentage(CMSIncrementalDutyCycle, |
| 0 | 1877 "CMSIncrementalDutyCycle"); |
|
10
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changeset
|
1878 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
| 0 | 1879 "CMSIncrementalDutyCycleMin"); |
|
10
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|
1880 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
| 0 | 1881 "CMSIncrementalSafetyFactor"); |
|
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1882 status = status && verify_percentage(CMSIncrementalOffset, |
| 0 | 1883 "CMSIncrementalOffset"); |
|
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1884 status = status && verify_percentage(CMSExpAvgFactor, |
| 0 | 1885 "CMSExpAvgFactor"); |
| 1886 // If it was not set on the command line, set | |
| 1887 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
| 1888 if (CMSInitiatingOccupancyFraction < 0) { | |
| 1889 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
| 1890 } | |
| 1891 } | |
| 1892 } | |
| 1893 | |
| 1894 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
| 1895 // insists that we hold the requisite locks so that the iteration is | |
| 1896 // MT-safe. For the verification at start-up and shut-down, we don't | |
| 1897 // yet have a good way of acquiring and releasing these locks, | |
| 1898 // which are not visible at the CollectedHeap level. We want to | |
| 1899 // be able to acquire these locks and then do the iteration rather | |
| 1900 // than just disable the lock verification. This will be fixed under | |
| 1901 // bug 4788986. | |
| 1902 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
| 1903 if (VerifyGCStartAt == 0) { | |
| 1904 warning("Heap verification at start-up disabled " | |
| 1905 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1906 VerifyGCStartAt = 1; // Disable verification at start-up | |
| 1907 } | |
| 1908 if (VerifyBeforeExit) { | |
| 1909 warning("Heap verification at shutdown disabled " | |
| 1910 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1911 VerifyBeforeExit = false; // Disable verification at shutdown | |
| 1912 } | |
| 1913 } | |
| 1914 | |
| 1915 // Note: only executed in non-PRODUCT mode | |
| 1916 if (!UseAsyncConcMarkSweepGC && | |
| 1917 (ExplicitGCInvokesConcurrent || | |
| 1918 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
| 1919 jio_fprintf(defaultStream::error_stream(), | |
| 1920 "error: +ExplictGCInvokesConcurrent[AndUnloadsClasses] conflicts" | |
| 1921 " with -UseAsyncConcMarkSweepGC"); | |
| 1922 status = false; | |
| 1923 } | |
| 1924 | |
|
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1925 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
|
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1926 |
|
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1927 #ifndef SERIALGC |
|
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1928 if (UseG1GC) { |
|
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1929 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
|
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1930 "InitiatingHeapOccupancyPercent"); |
|
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1931 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
|
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1932 "G1RefProcDrainInterval"); |
|
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1933 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
|
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1934 "G1ConcMarkStepDurationMillis"); |
|
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1935 } |
|
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1936 #endif |
|
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1937 |
|
1244
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1938 status = status && verify_interval(RefDiscoveryPolicy, |
|
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1939 ReferenceProcessor::DiscoveryPolicyMin, |
|
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1940 ReferenceProcessor::DiscoveryPolicyMax, |
|
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1941 "RefDiscoveryPolicy"); |
|
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1942 |
|
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1943 // Limit the lower bound of this flag to 1 as it is used in a division |
|
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1944 // expression. |
|
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1945 status = status && verify_interval(TLABWasteTargetPercent, |
|
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|
1946 1, 100, "TLABWasteTargetPercent"); |
|
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|
1947 |
|
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1948 status = status && verify_object_alignment(); |
|
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|
1949 |
|
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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|
1950 #ifdef GRAAL |
|
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1951 if (UseCompressedOops) { |
|
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|
1952 jio_fprintf(defaultStream::error_stream(), |
|
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|
1953 "CompressedOops are not supported in Graal at the moment\n"); |
|
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|
1954 status = false; |
|
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Gilles Duboscq <duboscq@ssw.jku.at>
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|
1955 } |
|
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
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|
1956 if (UseG1GC) { |
|
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|
1957 jio_fprintf(defaultStream::error_stream(), |
|
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|
1958 "G1 is not supported in Graal at the moment\n"); |
|
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|
1959 status = false; |
|
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|
1960 } |
|
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|
1961 #endif |
|
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Gilles Duboscq <duboscq@ssw.jku.at>
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|
1962 |
| 0 | 1963 return status; |
| 1964 } | |
| 1965 | |
| 1966 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
| 1967 const char* option_type) { | |
| 1968 if (ignore) return false; | |
| 1969 | |
| 1970 const char* spacer = " "; | |
| 1971 if (option_type == NULL) { | |
| 1972 option_type = ++spacer; // Set both to the empty string. | |
| 1973 } | |
| 1974 | |
| 1975 if (os::obsolete_option(option)) { | |
| 1976 jio_fprintf(defaultStream::error_stream(), | |
| 1977 "Obsolete %s%soption: %s\n", option_type, spacer, | |
| 1978 option->optionString); | |
| 1979 return false; | |
| 1980 } else { | |
| 1981 jio_fprintf(defaultStream::error_stream(), | |
| 1982 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
| 1983 option->optionString); | |
| 1984 return true; | |
| 1985 } | |
| 1986 } | |
| 1987 | |
| 1988 static const char* user_assertion_options[] = { | |
| 1989 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
| 1990 }; | |
| 1991 | |
| 1992 static const char* system_assertion_options[] = { | |
| 1993 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
| 1994 }; | |
| 1995 | |
| 1996 // Return true if any of the strings in null-terminated array 'names' matches. | |
| 1997 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
| 1998 // the option must match exactly. | |
| 1999 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
| 2000 bool tail_allowed) { | |
| 2001 for (/* empty */; *names != NULL; ++names) { | |
| 2002 if (match_option(option, *names, tail)) { | |
| 2003 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
| 2004 return true; | |
| 2005 } | |
| 2006 } | |
| 2007 } | |
| 2008 return false; | |
| 2009 } | |
| 2010 | |
| 1284 | 2011 bool Arguments::parse_uintx(const char* value, |
| 2012 uintx* uintx_arg, | |
| 2013 uintx min_size) { | |
| 2014 | |
| 2015 // Check the sign first since atomull() parses only unsigned values. | |
| 2016 bool value_is_positive = !(*value == '-'); | |
| 2017 | |
| 2018 if (value_is_positive) { | |
| 2019 julong n; | |
| 2020 bool good_return = atomull(value, &n); | |
| 2021 if (good_return) { | |
| 2022 bool above_minimum = n >= min_size; | |
| 2023 bool value_is_too_large = n > max_uintx; | |
| 2024 | |
| 2025 if (above_minimum && !value_is_too_large) { | |
| 2026 *uintx_arg = n; | |
| 2027 return true; | |
| 2028 } | |
| 2029 } | |
| 2030 } | |
| 2031 return false; | |
| 2032 } | |
| 2033 | |
| 0 | 2034 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2035 julong* long_arg, |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2036 julong min_size) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2037 if (!atomull(s, long_arg)) return arg_unreadable; |
| 0 | 2038 return check_memory_size(*long_arg, min_size); |
| 2039 } | |
| 2040 | |
| 2041 // Parse JavaVMInitArgs structure | |
|
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2042 #ifdef GRAAL |
|
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2043 static void prepend_to_graal_classpath(SysClassPath &cp, const char* graal_dir, const char* project) { |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2044 const int BUFFER_SIZE = 1024; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2045 char path[BUFFER_SIZE]; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2046 |
|
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2047 const char fileSep = *os::file_separator(); |
|
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2048 sprintf(path, "%s%c%s%cbin", graal_dir, fileSep, project, fileSep); |
|
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2049 DIR* dir = os::opendir(path); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2050 if (dir == NULL) { |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2051 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The Graal class directory %s could not be opened.\n", path); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2052 vm_exit(1); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2053 } |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2054 os::closedir(dir); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2055 cp.add_prefix(path); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2056 } |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2057 |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2058 // Walk up the directory hierarchy starting from JAVA_HOME looking |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2059 // for a directory named "graal". If found, then the full path to |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2060 // this directory is returned in graal_dir. |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2061 static bool find_graal_dir(char* graal_dir) { |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2062 strcpy(graal_dir, Arguments::get_java_home()); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2063 char* end = graal_dir + strlen(graal_dir); |
|
4252
67e88b7624d5
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Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2064 const char fileSep = *os::file_separator(); |
|
4155
394404b2d9bd
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4137
diff
changeset
|
2065 while (end != graal_dir) { |
|
4252
67e88b7624d5
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Doug Simon <doug.simon@oracle.com>
parents:
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diff
changeset
|
2066 if (fileSep == '/') |
|
67e88b7624d5
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4205
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changeset
|
2067 strcat(graal_dir, "/graal"); |
|
67e88b7624d5
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Doug Simon <doug.simon@oracle.com>
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|
2068 else { |
|
67e88b7624d5
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Doug Simon <doug.simon@oracle.com>
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changeset
|
2069 assert(fileSep == '\\', "unexpected separator char"); |
|
67e88b7624d5
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Doug Simon <doug.simon@oracle.com>
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|
2070 strcat(graal_dir, "\\graal"); |
|
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
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4205
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|
2071 } |
|
4155
394404b2d9bd
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Doug Simon <doug.simon@oracle.com>
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|
2072 DIR* dir = os::opendir(graal_dir); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
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changeset
|
2073 if (dir != NULL) { |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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changeset
|
2074 os::closedir(dir); |
|
394404b2d9bd
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Doug Simon <doug.simon@oracle.com>
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4137
diff
changeset
|
2075 return true; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2076 } |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2077 *end = 0; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2078 while (end != graal_dir) { |
|
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2079 if (*end == fileSep) { |
|
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2080 *end = 0; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2081 break; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2082 } |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2083 end--; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2084 } |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2085 } |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2086 return false; |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2087 } |
|
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2088 #endif |
| 0 | 2089 |
| 2090 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
| 2091 // For components of the system classpath. | |
| 2092 SysClassPath scp(Arguments::get_sysclasspath()); | |
| 2093 bool scp_assembly_required = false; | |
| 2094 | |
| 2095 // Save default settings for some mode flags | |
| 2096 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 2097 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 2098 Arguments::_ClipInlining = ClipInlining; | |
| 2099 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 2100 | |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2101 // Setup flags for mixed which is the default |
|
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2102 set_mode_flags(_mixed); |
|
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2103 |
| 0 | 2104 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
| 2105 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
| 2106 if (result != JNI_OK) { | |
| 2107 return result; | |
| 2108 } | |
| 2109 | |
| 2110 // Parse JavaVMInitArgs structure passed in | |
| 2111 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
| 2112 if (result != JNI_OK) { | |
| 2113 return result; | |
| 2114 } | |
| 2115 | |
|
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2116 #ifdef GRAAL |
|
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2117 if (PrintVMOptions) { |
|
3568
409ef3a68dc8
re-lock objects whose lock was removed by escape analysis, enable stack walking compilation policy (-XX:CompilationPolicyChoice=1)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3546
diff
changeset
|
2118 tty->print_cr("Running Graal VM... "); |
|
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2119 } |
|
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2120 const int BUFFER_SIZE = 1024; |
|
3736
d3ec27ea1b20
Work with GRAAL environment variable instead of MAXINE environment variable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3601
diff
changeset
|
2121 char graal_dir[BUFFER_SIZE]; |
|
d3ec27ea1b20
Work with GRAAL environment variable instead of MAXINE environment variable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3601
diff
changeset
|
2122 if (!os::getenv("GRAAL", graal_dir, sizeof(graal_dir))) { |
|
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2123 if (find_graal_dir(graal_dir) == false) { |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2124 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The GRAAL environment variable needs to point to the directory containing the Graal projects.\n"); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2125 vm_exit(0); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2126 } |
|
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2127 } |
|
3736
d3ec27ea1b20
Work with GRAAL environment variable instead of MAXINE environment variable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3601
diff
changeset
|
2128 if (PrintVMOptions) tty->print_cr("GRAAL=%s", graal_dir); |
|
4345
176d60b77d31
Moved PrintCompilation logic from graal.compiler to graal.hotspot. Made bootclasspath generated from the GRAAL environment option more generic (such that adding/removing a project requires no changes in the C++ part).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4252
diff
changeset
|
2129 |
|
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2130 // this declaration is checked for correctness by 'mx build' - only |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2131 // modify its entries, not its name or shape |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2132 const char* graal_projects[] = { |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2133 "com.oracle.max.criutils", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2134 "com.oracle.graal.hotspot", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2135 "com.oracle.max.asm", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2136 "com.oracle.graal.alloc", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2137 "com.oracle.graal.snippets", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2138 "com.oracle.graal.compiler", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2139 "com.oracle.graal.nodes", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2140 "com.oracle.graal.printer", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2141 "com.oracle.max.cri", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2142 "com.oracle.graal.debug", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2143 "com.oracle.graal.graph", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2144 "com.oracle.graal.lir", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2145 "com.oracle.graal.lir.amd64", |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2146 "com.oracle.graal.java" |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2147 }; |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2148 |
|
5093
ba5e8ba07b5c
compiler.class.path should not include system class path
Doug Simon <doug.simon@oracle.com>
parents:
5065
diff
changeset
|
2149 SysClassPath scp_compiler(""); |
|
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2150 const int len = sizeof(graal_projects) / sizeof(char*); |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2151 for (int i = 0; i < len; i++) { |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2152 if (PrintVMOptions) { |
|
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2153 tty->print_cr("Adding project directory %s to bootclasspath", graal_projects[i]); |
|
4345
176d60b77d31
Moved PrintCompilation logic from graal.compiler to graal.hotspot. Made bootclasspath generated from the GRAAL environment option more generic (such that adding/removing a project requires no changes in the C++ part).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4252
diff
changeset
|
2154 } |
|
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2155 prepend_to_graal_classpath(scp_compiler, graal_dir, graal_projects[i]); |
|
4345
176d60b77d31
Moved PrintCompilation logic from graal.compiler to graal.hotspot. Made bootclasspath generated from the GRAAL environment option more generic (such that adding/removing a project requires no changes in the C++ part).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4252
diff
changeset
|
2156 } |
|
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2157 scp_compiler.expand_endorsed(); |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2158 |
|
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2159 Arguments::set_compilerclasspath(scp_compiler.combined_path()); |
|
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2160 #endif |
|
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2161 |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2162 if (AggressiveOpts) { |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2163 // Insert alt-rt.jar between user-specified bootclasspath |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2164 // prefix and the default bootclasspath. os::set_boot_path() |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2165 // uses meta_index_dir as the default bootclasspath directory. |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2166 const char* altclasses_jar = "alt-rt.jar"; |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2167 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2168 strlen(altclasses_jar); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2169 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2170 strcpy(altclasses_path, get_meta_index_dir()); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2171 strcat(altclasses_path, altclasses_jar); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2172 scp.add_suffix_to_prefix(altclasses_path); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2173 scp_assembly_required = true; |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2174 FREE_C_HEAP_ARRAY(char, altclasses_path); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2175 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2176 |
| 0 | 2177 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
| 2178 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
| 2179 if (result != JNI_OK) { | |
| 2180 return result; | |
| 2181 } | |
| 2182 | |
| 2183 // Do final processing now that all arguments have been parsed | |
| 2184 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
| 2185 if (result != JNI_OK) { | |
| 2186 return result; | |
| 2187 } | |
| 2188 | |
| 2189 return JNI_OK; | |
| 2190 } | |
| 2191 | |
| 2192 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
| 2193 SysClassPath* scp_p, | |
| 2194 bool* scp_assembly_required_p, | |
| 2195 FlagValueOrigin origin) { | |
| 2196 // Remaining part of option string | |
| 2197 const char* tail; | |
| 2198 | |
| 2199 // iterate over arguments | |
| 2200 for (int index = 0; index < args->nOptions; index++) { | |
| 2201 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
| 2202 | |
| 2203 const JavaVMOption* option = args->options + index; | |
| 2204 | |
| 2205 if (!match_option(option, "-Djava.class.path", &tail) && | |
| 2206 !match_option(option, "-Dsun.java.command", &tail) && | |
| 2207 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
| 2208 | |
| 2209 // add all jvm options to the jvm_args string. This string | |
| 2210 // is used later to set the java.vm.args PerfData string constant. | |
| 2211 // the -Djava.class.path and the -Dsun.java.command options are | |
| 2212 // omitted from jvm_args string as each have their own PerfData | |
| 2213 // string constant object. | |
| 2214 build_jvm_args(option->optionString); | |
| 2215 } | |
| 2216 | |
| 2217 // -verbose:[class/gc/jni] | |
| 2218 if (match_option(option, "-verbose", &tail)) { | |
| 2219 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
| 2220 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
| 2221 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2222 } else if (!strcmp(tail, ":gc")) { | |
| 2223 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2224 } else if (!strcmp(tail, ":jni")) { | |
| 2225 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
| 2226 } | |
| 2227 // -da / -ea / -disableassertions / -enableassertions | |
| 2228 // These accept an optional class/package name separated by a colon, e.g., | |
| 2229 // -da:java.lang.Thread. | |
| 2230 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
| 2231 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2232 if (*tail == '\0') { | |
| 2233 JavaAssertions::setUserClassDefault(enable); | |
| 2234 } else { | |
| 2235 assert(*tail == ':', "bogus match by match_option()"); | |
| 2236 JavaAssertions::addOption(tail + 1, enable); | |
| 2237 } | |
| 2238 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
| 2239 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
| 2240 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2241 JavaAssertions::setSystemClassDefault(enable); | |
| 2242 // -bootclasspath: | |
| 2243 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
| 2244 scp_p->reset_path(tail); | |
| 2245 *scp_assembly_required_p = true; | |
| 2246 // -bootclasspath/a: | |
| 2247 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
| 2248 scp_p->add_suffix(tail); | |
| 2249 *scp_assembly_required_p = true; | |
| 2250 // -bootclasspath/p: | |
| 2251 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
| 2252 scp_p->add_prefix(tail); | |
| 2253 *scp_assembly_required_p = true; | |
| 2254 // -Xrun | |
| 2255 } else if (match_option(option, "-Xrun", &tail)) { | |
|
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2256 if (tail != NULL) { |
| 0 | 2257 const char* pos = strchr(tail, ':'); |
| 2258 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 2259 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1), tail, len); | |
| 2260 name[len] = '\0'; | |
| 2261 | |
| 2262 char *options = NULL; | |
| 2263 if(pos != NULL) { | |
| 2264 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
| 2265 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2), pos+1, len2); | |
| 2266 } | |
| 2267 #ifdef JVMTI_KERNEL | |
| 2268 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
| 2269 warning("profiling and debugging agents are not supported with Kernel VM"); | |
| 2270 } else | |
| 2271 #endif // JVMTI_KERNEL | |
| 2272 add_init_library(name, options); | |
| 2273 } | |
| 2274 // -agentlib and -agentpath | |
| 2275 } else if (match_option(option, "-agentlib:", &tail) || | |
| 2276 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
| 2277 if(tail != NULL) { | |
| 2278 const char* pos = strchr(tail, '='); | |
| 2279 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 2280 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1), tail, len); | |
| 2281 name[len] = '\0'; | |
| 2282 | |
| 2283 char *options = NULL; | |
| 2284 if(pos != NULL) { | |
| 2285 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1), pos + 1); | |
| 2286 } | |
| 2287 #ifdef JVMTI_KERNEL | |
| 2288 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
| 2289 warning("profiling and debugging agents are not supported with Kernel VM"); | |
| 2290 } else | |
| 2291 #endif // JVMTI_KERNEL | |
| 2292 add_init_agent(name, options, is_absolute_path); | |
| 2293 | |
| 2294 } | |
| 2295 // -javaagent | |
| 2296 } else if (match_option(option, "-javaagent:", &tail)) { | |
| 2297 if(tail != NULL) { | |
| 2298 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1), tail); | |
| 2299 add_init_agent("instrument", options, false); | |
| 2300 } | |
| 2301 // -Xnoclassgc | |
| 2302 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
| 2303 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
| 2304 // -Xincgc: i-CMS | |
| 2305 } else if (match_option(option, "-Xincgc", &tail)) { | |
| 2306 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2307 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
| 2308 // -Xnoincgc: no i-CMS | |
| 2309 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
| 2310 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2311 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
| 2312 // -Xconcgc | |
| 2313 } else if (match_option(option, "-Xconcgc", &tail)) { | |
| 2314 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2315 // -Xnoconcgc | |
| 2316 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
| 2317 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2318 // -Xbatch | |
| 2319 } else if (match_option(option, "-Xbatch", &tail)) { | |
| 2320 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2321 // -Xmn for compatibility with other JVM vendors | |
| 2322 } else if (match_option(option, "-Xmn", &tail)) { | |
|
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2323 julong long_initial_eden_size = 0; |
| 0 | 2324 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
| 2325 if (errcode != arg_in_range) { | |
| 2326 jio_fprintf(defaultStream::error_stream(), | |
| 2327 "Invalid initial eden size: %s\n", option->optionString); | |
| 2328 describe_range_error(errcode); | |
| 2329 return JNI_EINVAL; | |
| 2330 } | |
| 1064 | 2331 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
| 2332 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
| 0 | 2333 // -Xms |
| 2334 } else if (match_option(option, "-Xms", &tail)) { | |
|
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2335 julong long_initial_heap_size = 0; |
| 0 | 2336 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
| 2337 if (errcode != arg_in_range) { | |
| 2338 jio_fprintf(defaultStream::error_stream(), | |
| 2339 "Invalid initial heap size: %s\n", option->optionString); | |
| 2340 describe_range_error(errcode); | |
| 2341 return JNI_EINVAL; | |
| 2342 } | |
| 1064 | 2343 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
| 0 | 2344 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2345 set_min_heap_size(InitialHeapSize); |
| 0 | 2346 // -Xmx |
| 2347 } else if (match_option(option, "-Xmx", &tail)) { | |
|
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2348 julong long_max_heap_size = 0; |
| 0 | 2349 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2350 if (errcode != arg_in_range) { | |
| 2351 jio_fprintf(defaultStream::error_stream(), | |
| 2352 "Invalid maximum heap size: %s\n", option->optionString); | |
| 2353 describe_range_error(errcode); | |
| 2354 return JNI_EINVAL; | |
| 2355 } | |
| 1064 | 2356 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
| 0 | 2357 // Xmaxf |
| 2358 } else if (match_option(option, "-Xmaxf", &tail)) { | |
| 2359 int maxf = (int)(atof(tail) * 100); | |
| 2360 if (maxf < 0 || maxf > 100) { | |
| 2361 jio_fprintf(defaultStream::error_stream(), | |
| 2362 "Bad max heap free percentage size: %s\n", | |
| 2363 option->optionString); | |
| 2364 return JNI_EINVAL; | |
| 2365 } else { | |
| 2366 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
| 2367 } | |
| 2368 // Xminf | |
| 2369 } else if (match_option(option, "-Xminf", &tail)) { | |
| 2370 int minf = (int)(atof(tail) * 100); | |
| 2371 if (minf < 0 || minf > 100) { | |
| 2372 jio_fprintf(defaultStream::error_stream(), | |
| 2373 "Bad min heap free percentage size: %s\n", | |
| 2374 option->optionString); | |
| 2375 return JNI_EINVAL; | |
| 2376 } else { | |
| 2377 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
| 2378 } | |
| 2379 // -Xss | |
| 2380 } else if (match_option(option, "-Xss", &tail)) { | |
|
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2381 julong long_ThreadStackSize = 0; |
| 0 | 2382 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
| 2383 if (errcode != arg_in_range) { | |
| 2384 jio_fprintf(defaultStream::error_stream(), | |
| 2385 "Invalid thread stack size: %s\n", option->optionString); | |
| 2386 describe_range_error(errcode); | |
| 2387 return JNI_EINVAL; | |
| 2388 } | |
| 2389 // Internally track ThreadStackSize in units of 1024 bytes. | |
| 2390 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
| 2391 round_to((int)long_ThreadStackSize, K) / K); | |
| 2392 // -Xoss | |
| 2393 } else if (match_option(option, "-Xoss", &tail)) { | |
| 2394 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
| 2395 // -Xmaxjitcodesize | |
|
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2396 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
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2397 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
|
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2398 julong long_ReservedCodeCacheSize = 0; |
| 0 | 2399 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
|
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2400 (size_t)InitialCodeCacheSize); |
| 0 | 2401 if (errcode != arg_in_range) { |
| 2402 jio_fprintf(defaultStream::error_stream(), | |
|
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2403 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
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|
2404 option->optionString, InitialCodeCacheSize/K); |
| 0 | 2405 describe_range_error(errcode); |
| 2406 return JNI_EINVAL; | |
| 2407 } | |
| 2408 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
| 2409 // -green | |
| 2410 } else if (match_option(option, "-green", &tail)) { | |
| 2411 jio_fprintf(defaultStream::error_stream(), | |
| 2412 "Green threads support not available\n"); | |
| 2413 return JNI_EINVAL; | |
| 2414 // -native | |
| 2415 } else if (match_option(option, "-native", &tail)) { | |
| 2416 // HotSpot always uses native threads, ignore silently for compatibility | |
| 2417 // -Xsqnopause | |
| 2418 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
| 2419 // EVM option, ignore silently for compatibility | |
| 2420 // -Xrs | |
| 2421 } else if (match_option(option, "-Xrs", &tail)) { | |
| 2422 // Classic/EVM option, new functionality | |
| 2423 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
| 2424 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
| 2425 // change default internal VM signals used - lower case for back compat | |
| 2426 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
| 2427 // -Xoptimize | |
| 2428 } else if (match_option(option, "-Xoptimize", &tail)) { | |
| 2429 // EVM option, ignore silently for compatibility | |
| 2430 // -Xprof | |
| 2431 } else if (match_option(option, "-Xprof", &tail)) { | |
| 2432 #ifndef FPROF_KERNEL | |
| 2433 _has_profile = true; | |
| 2434 #else // FPROF_KERNEL | |
| 2435 // do we have to exit? | |
| 2436 warning("Kernel VM does not support flat profiling."); | |
| 2437 #endif // FPROF_KERNEL | |
| 2438 // -Xaprof | |
| 2439 } else if (match_option(option, "-Xaprof", &tail)) { | |
| 2440 _has_alloc_profile = true; | |
| 2441 // -Xconcurrentio | |
| 2442 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
| 2443 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
| 2444 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2445 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
| 2446 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2447 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
| 2448 | |
| 2449 // -Xinternalversion | |
| 2450 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
| 2451 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
| 2452 VM_Version::internal_vm_info_string()); | |
| 2453 vm_exit(0); | |
| 2454 #ifndef PRODUCT | |
| 2455 // -Xprintflags | |
| 2456 } else if (match_option(option, "-Xprintflags", &tail)) { | |
| 4773 | 2457 CommandLineFlags::printFlags(tty, false); |
| 0 | 2458 vm_exit(0); |
| 2459 #endif | |
| 2460 // -D | |
| 2461 } else if (match_option(option, "-D", &tail)) { | |
| 2462 if (!add_property(tail)) { | |
| 2463 return JNI_ENOMEM; | |
| 2464 } | |
| 2465 // Out of the box management support | |
| 2466 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
| 2467 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
| 2468 } | |
| 2469 // -Xint | |
| 2470 } else if (match_option(option, "-Xint", &tail)) { | |
| 2471 set_mode_flags(_int); | |
| 2472 // -Xmixed | |
| 2473 } else if (match_option(option, "-Xmixed", &tail)) { | |
| 2474 set_mode_flags(_mixed); | |
| 2475 // -Xcomp | |
| 2476 } else if (match_option(option, "-Xcomp", &tail)) { | |
| 2477 // for testing the compiler; turn off all flags that inhibit compilation | |
| 2478 set_mode_flags(_comp); | |
| 2479 | |
| 2480 // -Xshare:dump | |
| 2481 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
| 2482 #ifdef TIERED | |
| 2483 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2484 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2485 #elif defined(COMPILER2) | |
| 2486 vm_exit_during_initialization( | |
| 2487 "Dumping a shared archive is not supported on the Server JVM.", NULL); | |
| 2488 #elif defined(KERNEL) | |
| 2489 vm_exit_during_initialization( | |
| 2490 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
| 2491 #else | |
| 2492 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2493 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2494 #endif | |
| 2495 // -Xshare:on | |
| 2496 } else if (match_option(option, "-Xshare:on", &tail)) { | |
| 2497 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2498 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
| 2499 // -Xshare:auto | |
| 2500 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
| 2501 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2502 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2503 // -Xshare:off | |
| 2504 } else if (match_option(option, "-Xshare:off", &tail)) { | |
| 2505 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
| 2506 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2507 | |
| 2508 // -Xverify | |
| 2509 } else if (match_option(option, "-Xverify", &tail)) { | |
| 2510 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
| 2511 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
| 2512 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2513 } else if (strcmp(tail, ":remote") == 0) { | |
| 2514 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2515 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2516 } else if (strcmp(tail, ":none") == 0) { | |
| 2517 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2518 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
| 2519 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
| 2520 return JNI_EINVAL; | |
| 2521 } | |
| 2522 // -Xdebug | |
| 2523 } else if (match_option(option, "-Xdebug", &tail)) { | |
| 2524 // note this flag has been used, then ignore | |
| 2525 set_xdebug_mode(true); | |
| 2526 // -Xnoagent | |
| 2527 } else if (match_option(option, "-Xnoagent", &tail)) { | |
| 2528 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
| 2529 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
| 2530 // Bind user level threads to kernel threads (Solaris only) | |
| 2531 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
| 2532 } else if (match_option(option, "-Xloggc:", &tail)) { | |
| 2533 // Redirect GC output to the file. -Xloggc:<filename> | |
| 2534 // ostream_init_log(), when called will use this filename | |
| 2535 // to initialize a fileStream. | |
| 2536 _gc_log_filename = strdup(tail); | |
| 2537 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2538 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
| 2539 | |
| 2540 // JNI hooks | |
| 2541 } else if (match_option(option, "-Xcheck", &tail)) { | |
| 2542 if (!strcmp(tail, ":jni")) { | |
| 2543 CheckJNICalls = true; | |
| 2544 } else if (is_bad_option(option, args->ignoreUnrecognized, | |
| 2545 "check")) { | |
| 2546 return JNI_EINVAL; | |
| 2547 } | |
| 2548 } else if (match_option(option, "vfprintf", &tail)) { | |
| 2549 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
| 2550 } else if (match_option(option, "exit", &tail)) { | |
| 2551 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
| 2552 } else if (match_option(option, "abort", &tail)) { | |
| 2553 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
| 2554 // -XX:+AggressiveHeap | |
| 2555 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
| 2556 | |
| 2557 // This option inspects the machine and attempts to set various | |
| 2558 // parameters to be optimal for long-running, memory allocation | |
| 2559 // intensive jobs. It is intended for machines with large | |
| 2560 // amounts of cpu and memory. | |
| 2561 | |
| 2562 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
| 2563 // VM, but we may not be able to represent the total physical memory | |
| 2564 // available (like having 8gb of memory on a box but using a 32bit VM). | |
| 2565 // Thus, we need to make sure we're using a julong for intermediate | |
| 2566 // calculations. | |
| 2567 julong initHeapSize; | |
| 2568 julong total_memory = os::physical_memory(); | |
| 2569 | |
| 2570 if (total_memory < (julong)256*M) { | |
| 2571 jio_fprintf(defaultStream::error_stream(), | |
| 2572 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
| 2573 vm_exit(1); | |
| 2574 } | |
| 2575 | |
| 2576 // The heap size is half of available memory, or (at most) | |
| 2577 // all of possible memory less 160mb (leaving room for the OS | |
| 2578 // when using ISM). This is the maximum; because adaptive sizing | |
| 2579 // is turned on below, the actual space used may be smaller. | |
| 2580 | |
| 2581 initHeapSize = MIN2(total_memory / (julong)2, | |
| 2582 total_memory - (julong)160*M); | |
| 2583 | |
| 2584 // Make sure that if we have a lot of memory we cap the 32 bit | |
| 2585 // process space. The 64bit VM version of this function is a nop. | |
| 2586 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
| 2587 | |
| 2588 // The perm gen is separate but contiguous with the | |
| 2589 // object heap (and is reserved with it) so subtract it | |
| 2590 // from the heap size. | |
| 2591 if (initHeapSize > MaxPermSize) { | |
| 2592 initHeapSize = initHeapSize - MaxPermSize; | |
| 2593 } else { | |
| 2594 warning("AggressiveHeap and MaxPermSize values may conflict"); | |
| 2595 } | |
| 2596 | |
| 2597 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
| 2598 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
| 1064 | 2599 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
| 0 | 2600 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2601 set_min_heap_size(initHeapSize); |
| 0 | 2602 } |
| 2603 if (FLAG_IS_DEFAULT(NewSize)) { | |
| 2604 // Make the young generation 3/8ths of the total heap. | |
| 2605 FLAG_SET_CMDLINE(uintx, NewSize, | |
| 2606 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
| 2607 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
| 2608 } | |
| 2609 | |
| 2610 FLAG_SET_DEFAULT(UseLargePages, true); | |
| 2611 | |
| 2612 // Increase some data structure sizes for efficiency | |
| 2613 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
| 2614 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2615 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
| 2616 | |
| 2617 // See the OldPLABSize comment below, but replace 'after promotion' | |
| 2618 // with 'after copying'. YoungPLABSize is the size of the survivor | |
| 2619 // space per-gc-thread buffers. The default is 4kw. | |
| 2620 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
| 2621 | |
| 2622 // OldPLABSize is the size of the buffers in the old gen that | |
| 2623 // UseParallelGC uses to promote live data that doesn't fit in the | |
| 2624 // survivor spaces. At any given time, there's one for each gc thread. | |
| 2625 // The default size is 1kw. These buffers are rarely used, since the | |
| 2626 // survivor spaces are usually big enough. For specjbb, however, there | |
| 2627 // are occasions when there's lots of live data in the young gen | |
| 2628 // and we end up promoting some of it. We don't have a definite | |
| 2629 // explanation for why bumping OldPLABSize helps, but the theory | |
| 2630 // is that a bigger PLAB results in retaining something like the | |
| 2631 // original allocation order after promotion, which improves mutator | |
| 2632 // locality. A minor effect may be that larger PLABs reduce the | |
| 2633 // number of PLAB allocation events during gc. The value of 8kw | |
| 2634 // was arrived at by experimenting with specjbb. | |
| 2635 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
| 2636 | |
| 2637 // CompilationPolicyChoice=0 causes the server compiler to adopt | |
| 2638 // a more conservative which-method-do-I-compile policy when one | |
| 2639 // of the counters maintained by the interpreter trips. The | |
| 2640 // result is reduced startup time and improved specjbb and | |
| 2641 // alacrity performance. Zero is the default, but we set it | |
| 2642 // explicitly here in case the default changes. | |
| 2643 // See runtime/compilationPolicy.*. | |
| 2644 FLAG_SET_CMDLINE(intx, CompilationPolicyChoice, 0); | |
| 2645 | |
| 2646 // Enable parallel GC and adaptive generation sizing | |
| 2647 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
|
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|
2648 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
2649 Abstract_VM_Version::parallel_worker_threads()); |
| 0 | 2650 |
| 2651 // Encourage steady state memory management | |
| 2652 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
| 2653 | |
| 2654 // This appears to improve mutator locality | |
| 2655 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2656 | |
| 2657 // Get around early Solaris scheduling bug | |
| 2658 // (affinity vs other jobs on system) | |
| 2659 // but disallow DR and offlining (5008695). | |
| 2660 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
| 2661 | |
| 2662 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
| 2663 // The last option must always win. | |
| 2664 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
| 2665 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
| 2666 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
| 2667 // The last option must always win. | |
| 2668 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
| 2669 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
| 2670 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
| 2671 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
| 2672 jio_fprintf(defaultStream::error_stream(), | |
| 2673 "Please use CMSClassUnloadingEnabled in place of " | |
| 2674 "CMSPermGenSweepingEnabled in the future\n"); | |
| 2675 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
| 2676 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
| 2677 jio_fprintf(defaultStream::error_stream(), | |
| 2678 "Please use -XX:+UseGCOverheadLimit in place of " | |
| 2679 "-XX:+UseGCTimeLimit in the future\n"); | |
| 2680 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
| 2681 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
| 2682 jio_fprintf(defaultStream::error_stream(), | |
| 2683 "Please use -XX:-UseGCOverheadLimit in place of " | |
| 2684 "-XX:-UseGCTimeLimit in the future\n"); | |
| 2685 // The TLE options are for compatibility with 1.3 and will be | |
| 2686 // removed without notice in a future release. These options | |
| 2687 // are not to be documented. | |
| 2688 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
| 2689 // No longer used. | |
| 2690 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
| 2691 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
| 2692 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
| 2693 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2694 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
| 2695 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
| 2696 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
| 2697 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
| 2698 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
| 2699 // No longer used. | |
| 2700 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
|
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|
2701 julong long_tlab_size = 0; |
| 0 | 2702 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
| 2703 if (errcode != arg_in_range) { | |
| 2704 jio_fprintf(defaultStream::error_stream(), | |
| 2705 "Invalid TLAB size: %s\n", option->optionString); | |
| 2706 describe_range_error(errcode); | |
| 2707 return JNI_EINVAL; | |
| 2708 } | |
| 2709 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
| 2710 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
| 2711 // No longer used. | |
| 2712 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
| 2713 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
| 2714 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
| 2715 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2716 SOLARIS_ONLY( | |
| 2717 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
| 2718 warning("-XX:+UsePermISM is obsolete."); | |
| 2719 FLAG_SET_CMDLINE(bool, UseISM, true); | |
| 2720 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
| 2721 FLAG_SET_CMDLINE(bool, UseISM, false); | |
| 2722 ) | |
| 2723 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
| 2724 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
| 2725 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
| 2726 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
| 2727 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
| 2728 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
| 2729 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
| 4006 | 2730 #if defined(DTRACE_ENABLED) |
| 0 | 2731 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
| 2732 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
| 2733 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
| 2734 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
| 4006 | 2735 #else // defined(DTRACE_ENABLED) |
| 0 | 2736 jio_fprintf(defaultStream::error_stream(), |
| 4006 | 2737 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
| 0 | 2738 return JNI_EINVAL; |
| 4006 | 2739 #endif // defined(DTRACE_ENABLED) |
| 0 | 2740 #ifdef ASSERT |
|
1145
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6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2741 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
| 0 | 2742 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
| 2743 // disable scavenge before parallel mark-compact | |
| 2744 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2745 #endif | |
|
1145
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1074
diff
changeset
|
2746 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
| 0 | 2747 julong cms_blocks_to_claim = (julong)atol(tail); |
| 2748 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
| 2749 jio_fprintf(defaultStream::error_stream(), | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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parents:
1074
diff
changeset
|
2750 "Please use -XX:OldPLABSize in place of " |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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parents:
1074
diff
changeset
|
2751 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2752 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2753 julong cms_blocks_to_claim = (julong)atol(tail); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2754 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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parents:
1074
diff
changeset
|
2755 jio_fprintf(defaultStream::error_stream(), |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2756 "Please use -XX:OldPLABSize in place of " |
| 0 | 2757 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
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|
2758 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
|
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2759 julong old_plab_size = 0; |
| 0 | 2760 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
| 2761 if (errcode != arg_in_range) { | |
| 2762 jio_fprintf(defaultStream::error_stream(), | |
| 2763 "Invalid old PLAB size: %s\n", option->optionString); | |
| 2764 describe_range_error(errcode); | |
| 2765 return JNI_EINVAL; | |
| 2766 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2767 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
| 0 | 2768 jio_fprintf(defaultStream::error_stream(), |
| 2769 "Please use -XX:OldPLABSize in place of " | |
| 2770 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2771 } 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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483
diff
changeset
|
2772 julong young_plab_size = 0; |
| 0 | 2773 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
| 2774 if (errcode != arg_in_range) { | |
| 2775 jio_fprintf(defaultStream::error_stream(), | |
| 2776 "Invalid young PLAB size: %s\n", option->optionString); | |
| 2777 describe_range_error(errcode); | |
| 2778 return JNI_EINVAL; | |
| 2779 } | |
|
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2780 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
| 0 | 2781 jio_fprintf(defaultStream::error_stream(), |
| 2782 "Please use -XX:YoungPLABSize in place of " | |
| 2783 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
| 1284 | 2784 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
| 2785 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
| 2786 julong stack_size = 0; | |
| 2787 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
| 2788 if (errcode != arg_in_range) { | |
| 2789 jio_fprintf(defaultStream::error_stream(), | |
| 2790 "Invalid mark stack size: %s\n", option->optionString); | |
| 2791 describe_range_error(errcode); | |
| 2792 return JNI_EINVAL; | |
| 2793 } | |
| 2794 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
| 2795 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
| 2796 julong max_stack_size = 0; | |
| 2797 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
| 2798 if (errcode != arg_in_range) { | |
| 2799 jio_fprintf(defaultStream::error_stream(), | |
| 2800 "Invalid maximum mark stack size: %s\n", | |
| 2801 option->optionString); | |
| 2802 describe_range_error(errcode); | |
| 2803 return JNI_EINVAL; | |
| 2804 } | |
| 2805 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
| 2806 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
| 2807 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
| 2808 uintx conc_threads = 0; | |
| 2809 if (!parse_uintx(tail, &conc_threads, 1)) { | |
| 2810 jio_fprintf(defaultStream::error_stream(), | |
| 2811 "Invalid concurrent threads: %s\n", option->optionString); | |
| 2812 return JNI_EINVAL; | |
| 2813 } | |
| 2814 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
|
1145
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6631166: CMS: better heuristics when combatting fragmentation
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1074
diff
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|
2815 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 0 | 2816 // Skip -XX:Flags= since that case has already been handled |
| 2817 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
| 2818 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
| 2819 return JNI_EINVAL; | |
| 2820 } | |
| 2821 } | |
|
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2822 } |
|
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2823 #ifdef GRAAL |
|
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2824 else if (match_option(option, "-G:", &tail)) { // -G:XXX |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2825 // Option for the graal compiler. |
|
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
2826 if (PrintVMOptions) { |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2827 tty->print_cr("graal option %s", tail); |
|
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
2828 } |
|
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2829 Arguments::add_graal_arg(tail); |
|
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
2830 |
| 0 | 2831 // Unknown option |
|
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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4350
diff
changeset
|
2832 } |
|
723df37192d6
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Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
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|
2833 #endif |
|
723df37192d6
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Gilles Duboscq <duboscq@ssw.jku.at>
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diff
changeset
|
2834 else if (is_bad_option(option, args->ignoreUnrecognized)) { |
| 0 | 2835 return JNI_ERR; |
| 2836 } | |
| 2837 } | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
changeset
|
2838 |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2839 // 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
|
2840 // when working with older JDKs. |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
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420
diff
changeset
|
2841 if (JDK_Version::current().compare_major(6) <= 0 && |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2842 FLAG_IS_DEFAULT(UseVMInterruptibleIO)) { |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2843 FLAG_SET_DEFAULT(UseVMInterruptibleIO, true); |
|
171e581e8161
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diff
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|
2844 } |
|
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
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1628
diff
changeset
|
2845 #ifdef LINUX |
|
3d90023429ec
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diff
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|
2846 if (JDK_Version::current().compare_major(6) <= 0 && |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
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1628
diff
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|
2847 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
|
3d90023429ec
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1628
diff
changeset
|
2848 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
|
3d90023429ec
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1628
diff
changeset
|
2849 } |
|
3d90023429ec
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diff
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|
2850 #endif // LINUX |
| 0 | 2851 return JNI_OK; |
| 2852 } | |
| 2853 | |
| 2854 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
| 2855 // This must be done after all -D arguments have been processed. | |
| 2856 scp_p->expand_endorsed(); | |
| 2857 | |
| 2858 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
| 2859 // Assemble the bootclasspath elements into the final path. | |
| 2860 Arguments::set_sysclasspath(scp_p->combined_path()); | |
| 2861 } | |
| 2862 | |
| 2863 // This must be done after all arguments have been processed. | |
| 2864 // java_compiler() true means set to "NONE" or empty. | |
| 2865 if (java_compiler() && !xdebug_mode()) { | |
| 2866 // For backwards compatibility, we switch to interpreted mode if | |
| 2867 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
| 2868 // not specified. | |
| 2869 set_mode_flags(_int); | |
| 2870 } | |
| 2871 if (CompileThreshold == 0) { | |
| 2872 set_mode_flags(_int); | |
| 2873 } | |
| 2874 | |
| 2875 #ifndef COMPILER2 | |
| 2876 // Don't degrade server performance for footprint | |
| 2877 if (FLAG_IS_DEFAULT(UseLargePages) && | |
| 2878 MaxHeapSize < LargePageHeapSizeThreshold) { | |
| 2879 // No need for large granularity pages w/small heaps. | |
| 2880 // Note that large pages are enabled/disabled for both the | |
| 2881 // Java heap and the code cache. | |
| 2882 FLAG_SET_DEFAULT(UseLargePages, false); | |
| 2883 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
| 2884 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
| 2885 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
changeset
|
2886 |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2887 // Tiered compilation is undefined with C1. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2888 TieredCompilation = false; |
| 0 | 2889 #else |
| 2890 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
| 2891 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
| 2892 } | |
| 2893 #endif | |
| 2894 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2895 // 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
|
2896 // to be true unless the property has already been set. |
|
126ea7725993
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diff
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|
2897 // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state. |
|
126ea7725993
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diff
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|
2898 if (os::is_headless_jre()) { |
|
126ea7725993
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bobv
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diff
changeset
|
2899 const char* headless = Arguments::get_property("java.awt.headless"); |
|
126ea7725993
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parents:
1679
diff
changeset
|
2900 if (headless == NULL) { |
|
126ea7725993
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bobv
parents:
1679
diff
changeset
|
2901 char envbuffer[128]; |
|
126ea7725993
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bobv
parents:
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diff
changeset
|
2902 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
|
126ea7725993
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bobv
parents:
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diff
changeset
|
2903 if (!add_property("java.awt.headless=true")) { |
|
126ea7725993
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bobv
parents:
1679
diff
changeset
|
2904 return JNI_ENOMEM; |
|
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bobv
parents:
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diff
changeset
|
2905 } |
|
126ea7725993
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bobv
parents:
1679
diff
changeset
|
2906 } else { |
|
126ea7725993
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bobv
parents:
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diff
changeset
|
2907 char buffer[256]; |
|
126ea7725993
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bobv
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diff
changeset
|
2908 strcpy(buffer, "java.awt.headless="); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2909 strcat(buffer, envbuffer); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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parents:
1679
diff
changeset
|
2910 if (!add_property(buffer)) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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parents:
1679
diff
changeset
|
2911 return JNI_ENOMEM; |
|
126ea7725993
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parents:
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diff
changeset
|
2912 } |
|
126ea7725993
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parents:
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diff
changeset
|
2913 } |
|
126ea7725993
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bobv
parents:
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diff
changeset
|
2914 } |
|
126ea7725993
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bobv
parents:
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diff
changeset
|
2915 } |
|
126ea7725993
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|
2916 |
| 0 | 2917 if (!check_vm_args_consistency()) { |
| 2918 return JNI_ERR; | |
| 2919 } | |
| 2920 | |
| 2921 return JNI_OK; | |
| 2922 } | |
| 2923 | |
| 2924 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2925 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
| 2926 scp_assembly_required_p); | |
| 2927 } | |
| 2928 | |
| 2929 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2930 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
| 2931 scp_assembly_required_p); | |
| 2932 } | |
| 2933 | |
| 2934 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2935 const int N_MAX_OPTIONS = 64; | |
| 2936 const int OPTION_BUFFER_SIZE = 1024; | |
| 2937 char buffer[OPTION_BUFFER_SIZE]; | |
| 2938 | |
| 2939 // The variable will be ignored if it exceeds the length of the buffer. | |
| 2940 // Don't check this variable if user has special privileges | |
| 2941 // (e.g. unix su command). | |
| 2942 if (os::getenv(name, buffer, sizeof(buffer)) && | |
| 2943 !os::have_special_privileges()) { | |
| 2944 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
| 2945 jio_fprintf(defaultStream::error_stream(), | |
| 2946 "Picked up %s: %s\n", name, buffer); | |
| 2947 char* rd = buffer; // pointer to the input string (rd) | |
| 2948 int i; | |
| 2949 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
| 2950 while (isspace(*rd)) rd++; // skip whitespace | |
| 2951 if (*rd == 0) break; // we re done when the input string is read completely | |
| 2952 | |
| 2953 // The output, option string, overwrites the input string. | |
| 2954 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
| 2955 // input string (rd). | |
| 2956 char* wrt = rd; | |
| 2957 | |
| 2958 options[i++].optionString = wrt; // Fill in option | |
| 2959 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
| 2960 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
| 2961 int quote = *rd; // matching quote to look for | |
| 2962 rd++; // don't copy open quote | |
| 2963 while (*rd != quote) { // include everything (even spaces) up until quote | |
| 2964 if (*rd == 0) { // string termination means unmatched string | |
| 2965 jio_fprintf(defaultStream::error_stream(), | |
| 2966 "Unmatched quote in %s\n", name); | |
| 2967 return JNI_ERR; | |
| 2968 } | |
| 2969 *wrt++ = *rd++; // copy to option string | |
| 2970 } | |
| 2971 rd++; // don't copy close quote | |
| 2972 } else { | |
| 2973 *wrt++ = *rd++; // copy to option string | |
| 2974 } | |
| 2975 } | |
| 2976 // Need to check if we're done before writing a NULL, | |
| 2977 // because the write could be to the byte that rd is pointing to. | |
| 2978 if (*rd++ == 0) { | |
| 2979 *wrt = 0; | |
| 2980 break; | |
| 2981 } | |
| 2982 *wrt = 0; // Zero terminate option | |
| 2983 } | |
| 2984 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
| 2985 JavaVMInitArgs vm_args; | |
| 2986 vm_args.version = JNI_VERSION_1_2; | |
| 2987 vm_args.options = options; | |
| 2988 vm_args.nOptions = i; | |
| 564 | 2989 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 0 | 2990 |
| 2991 if (PrintVMOptions) { | |
| 2992 const char* tail; | |
| 2993 for (int i = 0; i < vm_args.nOptions; i++) { | |
| 2994 const JavaVMOption *option = vm_args.options + i; | |
| 2995 if (match_option(option, "-XX:", &tail)) { | |
| 2996 logOption(tail); | |
| 2997 } | |
| 2998 } | |
| 2999 } | |
| 3000 | |
| 3001 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
| 3002 } | |
| 3003 return JNI_OK; | |
| 3004 } | |
| 3005 | |
|
2362
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|
3006 void Arguments::set_shared_spaces_flags() { |
| 2378 | 3007 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
| 3008 const bool might_share = must_share || UseSharedSpaces; | |
| 3009 | |
| 3010 // The string table is part of the shared archive so the size must match. | |
| 3011 if (!FLAG_IS_DEFAULT(StringTableSize)) { | |
| 3012 // Disable sharing. | |
| 3013 if (must_share) { | |
| 3014 warning("disabling shared archive %s because of non-default " | |
| 3015 "StringTableSize", DumpSharedSpaces ? "creation" : "use"); | |
| 3016 } | |
| 3017 if (might_share) { | |
| 3018 FLAG_SET_DEFAULT(DumpSharedSpaces, false); | |
| 3019 FLAG_SET_DEFAULT(RequireSharedSpaces, false); | |
| 3020 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 3021 } | |
| 3022 return; | |
| 3023 } | |
| 3024 | |
|
2362
a2c2eac1ca62
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jcoomes
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diff
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|
3025 // Check whether class data sharing settings conflict with GC, compressed oops |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
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diff
changeset
|
3026 // or page size, and fix them up. Explicit sharing options override other |
|
a2c2eac1ca62
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jcoomes
parents:
2302
diff
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|
3027 // settings. |
|
a2c2eac1ca62
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diff
changeset
|
3028 const bool cannot_share = UseConcMarkSweepGC || CMSIncrementalMode || |
|
a2c2eac1ca62
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parents:
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diff
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|
3029 UseG1GC || UseParNewGC || UseParallelGC || UseParallelOldGC || |
|
a2c2eac1ca62
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parents:
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diff
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|
3030 UseCompressedOops || UseLargePages && FLAG_IS_CMDLINE(UseLargePages); |
|
a2c2eac1ca62
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diff
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|
3031 if (cannot_share) { |
|
a2c2eac1ca62
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parents:
2302
diff
changeset
|
3032 if (must_share) { |
| 2378 | 3033 warning("selecting serial gc and disabling large pages %s" |
| 3034 "because of %s", "" LP64_ONLY("and compressed oops "), | |
| 3035 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
| 3036 force_serial_gc(); | |
| 3037 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
| 3038 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
|
2362
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7018056: large pages not always enabled by default
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diff
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|
3039 } else { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3040 if (UseSharedSpaces && Verbose) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
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|
3041 warning("turning off use of shared archive because of " |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3042 "choice of garbage collector or large pages"); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3043 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3044 no_shared_spaces(); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3045 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3046 } else if (UseLargePages && might_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3047 // 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
|
3048 // there may not even be a shared archive to use. |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3049 FLAG_SET_DEFAULT(UseLargePages, false); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3050 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3051 } |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3052 |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3053 // 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
|
3054 // were explicitly requested on the command-line |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3055 #define UNSUPPORTED_OPTION(opt, description) \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3056 do { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3057 if (opt) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3058 if (FLAG_IS_CMDLINE(opt)) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3059 warning(description " is disabled in this release."); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3060 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3061 FLAG_SET_DEFAULT(opt, false); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3062 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3063 } while(0) |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3064 |
| 0 | 3065 // Parse entry point called from JNI_CreateJavaVM |
| 3066 | |
| 3067 jint Arguments::parse(const JavaVMInitArgs* args) { | |
| 3068 | |
| 3069 // Sharing support | |
| 3070 // Construct the path to the archive | |
| 3071 char jvm_path[JVM_MAXPATHLEN]; | |
| 3072 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
| 3073 char *end = strrchr(jvm_path, *os::file_separator()); | |
| 3074 if (end != NULL) *end = '\0'; | |
| 3075 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
| 3076 strlen(os::file_separator()) + 20); | |
| 3077 if (shared_archive_path == NULL) return JNI_ENOMEM; | |
| 3078 strcpy(shared_archive_path, jvm_path); | |
| 3079 strcat(shared_archive_path, os::file_separator()); | |
| 3080 strcat(shared_archive_path, "classes"); | |
| 3081 DEBUG_ONLY(strcat(shared_archive_path, "_g");) | |
| 3082 strcat(shared_archive_path, ".jsa"); | |
| 3083 SharedArchivePath = shared_archive_path; | |
| 3084 | |
| 3085 // Remaining part of option string | |
| 3086 const char* tail; | |
| 3087 | |
| 3088 // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. | |
| 3089 bool settings_file_specified = false; | |
| 564 | 3090 const char* flags_file; |
| 0 | 3091 int index; |
| 3092 for (index = 0; index < args->nOptions; index++) { | |
| 3093 const JavaVMOption *option = args->options + index; | |
| 3094 if (match_option(option, "-XX:Flags=", &tail)) { | |
| 564 | 3095 flags_file = tail; |
| 0 | 3096 settings_file_specified = true; |
| 3097 } | |
| 3098 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
| 3099 PrintVMOptions = true; | |
| 3100 } | |
|
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3101 if (match_option(option, "-XX:-PrintVMOptions", &tail)) { |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
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196
diff
changeset
|
3102 PrintVMOptions = false; |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
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diff
changeset
|
3103 } |
| 564 | 3104 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
| 3105 IgnoreUnrecognizedVMOptions = true; | |
| 3106 } | |
| 3107 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
| 3108 IgnoreUnrecognizedVMOptions = false; | |
| 3109 } | |
| 1150 | 3110 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
| 4773 | 3111 CommandLineFlags::printFlags(tty, false); |
| 1150 | 3112 vm_exit(0); |
| 3113 } | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3114 |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3115 #ifndef PRODUCT |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3116 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
| 4773 | 3117 CommandLineFlags::printFlags(tty, true); |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3118 vm_exit(0); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3119 } |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
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1745
diff
changeset
|
3120 #endif |
| 564 | 3121 } |
| 3122 | |
| 3123 if (IgnoreUnrecognizedVMOptions) { | |
| 3124 // uncast const to modify the flag args->ignoreUnrecognized | |
| 3125 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
| 3126 } | |
| 3127 | |
| 3128 // Parse specified settings file | |
| 3129 if (settings_file_specified) { | |
| 3130 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
| 3131 return JNI_EINVAL; | |
| 3132 } | |
| 0 | 3133 } |
| 3134 | |
| 3135 // Parse default .hotspotrc settings file | |
| 3136 if (!settings_file_specified) { | |
| 3137 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { | |
| 3138 return JNI_EINVAL; | |
| 3139 } | |
| 3140 } | |
| 3141 | |
| 3142 if (PrintVMOptions) { | |
| 3143 for (index = 0; index < args->nOptions; index++) { | |
| 3144 const JavaVMOption *option = args->options + index; | |
| 3145 if (match_option(option, "-XX:", &tail)) { | |
| 3146 logOption(tail); | |
| 3147 } | |
| 3148 } | |
| 3149 } | |
| 3150 | |
| 3151 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
| 3152 jint result = parse_vm_init_args(args); | |
| 3153 if (result != JNI_OK) { | |
| 3154 return result; | |
| 3155 } | |
| 3156 | |
|
3797
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7061192: option handling adjustments for oracle and embedded builds
jcoomes
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diff
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|
3157 #ifdef JAVASE_EMBEDDED |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3158 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3159 #endif |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3160 |
| 0 | 3161 #ifndef PRODUCT |
| 3162 if (TraceBytecodesAt != 0) { | |
| 3163 TraceBytecodes = true; | |
| 3164 } | |
| 3165 if (CountCompiledCalls) { | |
| 3166 if (UseCounterDecay) { | |
| 3167 warning("UseCounterDecay disabled because CountCalls is set"); | |
| 3168 UseCounterDecay = false; | |
| 3169 } | |
| 3170 } | |
| 3171 #endif // PRODUCT | |
| 3172 | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3173 // Transitional |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3174 if (EnableMethodHandles || AnonymousClasses) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3175 if (!EnableInvokeDynamic && !FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3176 warning("EnableMethodHandles and AnonymousClasses are obsolete. Keeping EnableInvokeDynamic disabled."); |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3177 } else { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3178 EnableInvokeDynamic = true; |
|
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3179 } |
|
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3180 } |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3181 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3182 // 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
|
3183 if (!JDK_Version::is_gte_jdk17x_version()) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3184 if (EnableInvokeDynamic) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3185 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3186 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
|
3187 } |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3188 EnableInvokeDynamic = false; |
| 710 | 3189 } |
| 3190 } | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3191 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3192 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3193 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3194 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
|
3195 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3196 ScavengeRootsInCode = 1; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3197 } |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3198 if (!JavaObjectsInPerm && ScavengeRootsInCode == 0) { |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3199 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3200 warning("forcing ScavengeRootsInCode non-zero because JavaObjectsInPerm is false"); |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3201 } |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3202 ScavengeRootsInCode = 1; |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3203 } |
| 710 | 3204 |
| 0 | 3205 if (PrintGCDetails) { |
| 3206 // Turn on -verbose:gc options as well | |
| 3207 PrintGC = true; | |
| 3208 } | |
| 3209 | |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3210 // 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
|
3211 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
|
3212 |
| 0 | 3213 #ifdef SERIALGC |
| 1064 | 3214 force_serial_gc(); |
| 0 | 3215 #endif // SERIALGC |
| 3216 #ifdef KERNEL | |
| 3217 no_shared_spaces(); | |
| 3218 #endif // KERNEL | |
| 3219 | |
| 3220 // Set flags based on ergonomics. | |
| 3221 set_ergonomics_flags(); | |
| 3222 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3223 set_shared_spaces_flags(); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3224 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3225 // Check the GC selections again. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3226 if (!check_gc_consistency()) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3227 return JNI_EINVAL; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3228 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3229 |
| 1783 | 3230 if (TieredCompilation) { |
| 3231 set_tiered_flags(); | |
| 3232 } else { | |
| 3233 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
| 3234 if (CompilationPolicyChoice >= 2) { | |
| 3235 vm_exit_during_initialization( | |
| 3236 "Incompatible compilation policy selected", NULL); | |
| 3237 } | |
| 3238 } | |
| 3239 | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3240 #ifndef KERNEL |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3241 // Set heap size based on available physical memory |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3242 set_heap_size(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3243 // Set per-collector flags |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3244 if (UseParallelGC || UseParallelOldGC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3245 set_parallel_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3246 } 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
|
3247 set_cms_and_parnew_gc_flags(); |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3248 } 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
|
3249 set_parnew_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3250 } else if (UseG1GC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3251 set_g1_gc_flags(); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3252 } |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3253 #endif // KERNEL |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3254 |
| 0 | 3255 #ifdef SERIALGC |
| 3256 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
| 3257 #endif // SERIALGC | |
| 3258 | |
| 3259 // Set bytecode rewriting flags | |
| 3260 set_bytecode_flags(); | |
| 3261 | |
| 3262 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
| 3263 set_aggressive_opts_flags(); | |
| 3264 | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3265 // Turn off biased locking for locking debug mode flags, |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3266 // 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
|
3267 // biased locking. |
| 2331 | 3268 if (UseHeavyMonitors |
| 3269 #ifdef COMPILER1 | |
| 3270 || !UseFastLocking | |
| 3271 #endif // COMPILER1 | |
| 3272 ) { | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3273 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3274 // 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
|
3275 // can't enable biased locking here |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3276 warning("Biased Locking is not supported with locking debug flags" |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3277 "; ignoring UseBiasedLocking flag." ); |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3278 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3279 UseBiasedLocking = false; |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3280 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3281 |
| 0 | 3282 #ifdef CC_INTERP |
| 1131 | 3283 // Clear flags not supported by the C++ interpreter |
| 3284 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
| 0 | 3285 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
| 1131 | 3286 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
| 3287 #endif // CC_INTERP | |
| 3288 | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3289 #ifdef COMPILER2 |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3290 if (!UseBiasedLocking || EmitSync != 0) { |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3291 UseOptoBiasInlining = false; |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3292 } |
| 4777 | 3293 if (!EliminateLocks) { |
| 3294 EliminateNestedLocks = false; | |
| 3295 } | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3296 #endif |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3297 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3298 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3299 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
|
3300 DebugNonSafepoints = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3301 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3302 |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3303 #ifndef PRODUCT |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3304 if (CompileTheWorld) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3305 // 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
|
3306 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3307 NmethodSweepFraction = 1; |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3308 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3309 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3310 #endif |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3311 |
| 0 | 3312 if (PrintCommandLineFlags) { |
| 4773 | 3313 CommandLineFlags::printSetFlags(tty); |
| 0 | 3314 } |
| 3315 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3316 // Apply CPU specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3317 if (UseBiasedLocking) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3318 if (!VM_Version::use_biased_locking() && |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3319 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3320 UseBiasedLocking = false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3321 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3322 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3323 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3324 // 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
|
3325 // 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
|
3326 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
|
3327 bool set = false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3328 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3329 if (!set) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3330 FLAG_SET_DEFAULT(PauseAtExit, true); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3331 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3332 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3333 |
| 0 | 3334 return JNI_OK; |
| 3335 } | |
| 3336 | |
| 3337 int Arguments::PropertyList_count(SystemProperty* pl) { | |
| 3338 int count = 0; | |
| 3339 while(pl != NULL) { | |
| 3340 count++; | |
| 3341 pl = pl->next(); | |
| 3342 } | |
| 3343 return count; | |
| 3344 } | |
| 3345 | |
| 3346 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
| 3347 assert(key != NULL, "just checking"); | |
| 3348 SystemProperty* prop; | |
| 3349 for (prop = pl; prop != NULL; prop = prop->next()) { | |
| 3350 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
| 3351 } | |
| 3352 return NULL; | |
| 3353 } | |
| 3354 | |
| 3355 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
| 3356 int count = 0; | |
| 3357 const char* ret_val = NULL; | |
| 3358 | |
| 3359 while(pl != NULL) { | |
| 3360 if(count >= index) { | |
| 3361 ret_val = pl->key(); | |
| 3362 break; | |
| 3363 } | |
| 3364 count++; | |
| 3365 pl = pl->next(); | |
| 3366 } | |
| 3367 | |
| 3368 return ret_val; | |
| 3369 } | |
| 3370 | |
| 3371 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
| 3372 int count = 0; | |
| 3373 char* ret_val = NULL; | |
| 3374 | |
| 3375 while(pl != NULL) { | |
| 3376 if(count >= index) { | |
| 3377 ret_val = pl->value(); | |
| 3378 break; | |
| 3379 } | |
| 3380 count++; | |
| 3381 pl = pl->next(); | |
| 3382 } | |
| 3383 | |
| 3384 return ret_val; | |
| 3385 } | |
| 3386 | |
| 3387 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
| 3388 SystemProperty* p = *plist; | |
| 3389 if (p == NULL) { | |
| 3390 *plist = new_p; | |
| 3391 } else { | |
| 3392 while (p->next() != NULL) { | |
| 3393 p = p->next(); | |
| 3394 } | |
| 3395 p->set_next(new_p); | |
| 3396 } | |
| 3397 } | |
| 3398 | |
| 3399 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
| 3400 if (plist == NULL) | |
| 3401 return; | |
| 3402 | |
| 3403 SystemProperty* new_p = new SystemProperty(k, v, true); | |
| 3404 PropertyList_add(plist, new_p); | |
| 3405 } | |
| 3406 | |
| 3407 // This add maintains unique property key in the list. | |
| 691 | 3408 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
| 0 | 3409 if (plist == NULL) |
| 3410 return; | |
| 3411 | |
| 3412 // If property key exist then update with new value. | |
| 3413 SystemProperty* prop; | |
| 3414 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
| 3415 if (strcmp(k, prop->key()) == 0) { | |
| 691 | 3416 if (append) { |
| 3417 prop->append_value(v); | |
| 3418 } else { | |
| 3419 prop->set_value(v); | |
| 3420 } | |
| 0 | 3421 return; |
| 3422 } | |
| 3423 } | |
| 3424 | |
| 3425 PropertyList_add(plist, k, v); | |
| 3426 } | |
| 3427 | |
| 3428 #ifdef KERNEL | |
| 3429 char *Arguments::get_kernel_properties() { | |
| 3430 // Find properties starting with kernel and append them to string | |
| 3431 // We need to find out how long they are first because the URL's that they | |
| 3432 // might point to could get long. | |
| 3433 int length = 0; | |
| 3434 SystemProperty* prop; | |
| 3435 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3436 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3437 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
| 3438 } | |
| 3439 } | |
| 3440 // Add one for null terminator. | |
| 3441 char *props = AllocateHeap(length + 1, "get_kernel_properties"); | |
| 3442 if (length != 0) { | |
| 3443 int pos = 0; | |
| 3444 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3445 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3446 jio_snprintf(&props[pos], length-pos, | |
| 3447 "-D%s=%s ", prop->key(), prop->value()); | |
| 3448 pos = strlen(props); | |
| 3449 } | |
| 3450 } | |
| 3451 } | |
| 3452 // null terminate props in case of null | |
| 3453 props[length] = '\0'; | |
| 3454 return props; | |
| 3455 } | |
| 3456 #endif // KERNEL | |
| 3457 | |
| 3458 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
| 3459 // Returns true if all of the source pointed by src has been copied over to | |
| 3460 // the destination buffer pointed by buf. Otherwise, returns false. | |
| 3461 // Notes: | |
| 3462 // 1. If the length (buflen) of the destination buffer excluding the | |
| 3463 // NULL terminator character is not long enough for holding the expanded | |
| 3464 // pid characters, it also returns false instead of returning the partially | |
| 3465 // expanded one. | |
| 3466 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
| 3467 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
| 3468 char* buf, size_t buflen) { | |
| 3469 const char* p = src; | |
| 3470 char* b = buf; | |
| 3471 const char* src_end = &src[srclen]; | |
| 3472 char* buf_end = &buf[buflen - 1]; | |
| 3473 | |
| 3474 while (p < src_end && b < buf_end) { | |
| 3475 if (*p == '%') { | |
| 3476 switch (*(++p)) { | |
| 3477 case '%': // "%%" ==> "%" | |
| 3478 *b++ = *p++; | |
| 3479 break; | |
| 3480 case 'p': { // "%p" ==> current process id | |
| 3481 // buf_end points to the character before the last character so | |
| 3482 // that we could write '\0' to the end of the buffer. | |
| 3483 size_t buf_sz = buf_end - b + 1; | |
| 3484 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
| 3485 | |
| 3486 // if jio_snprintf fails or the buffer is not long enough to hold | |
| 3487 // the expanded pid, returns false. | |
| 3488 if (ret < 0 || ret >= (int)buf_sz) { | |
| 3489 return false; | |
| 3490 } else { | |
| 3491 b += ret; | |
| 3492 assert(*b == '\0', "fail in copy_expand_pid"); | |
| 3493 if (p == src_end && b == buf_end + 1) { | |
| 3494 // reach the end of the buffer. | |
| 3495 return true; | |
| 3496 } | |
| 3497 } | |
| 3498 p++; | |
| 3499 break; | |
| 3500 } | |
| 3501 default : | |
| 3502 *b++ = '%'; | |
| 3503 } | |
| 3504 } else { | |
| 3505 *b++ = *p++; | |
| 3506 } | |
| 3507 } | |
| 3508 *b = '\0'; | |
| 3509 return (p == src_end); // return false if not all of the source was copied | |
| 3510 } |