Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 6266:1d7922586cf6
7023639: JSR 292 method handle invocation needs a fast path for compiled code
6984705: JSR 292 method handle creation should not go through JNI
Summary: remove assembly code for JDK 7 chained method handles
Reviewed-by: jrose, twisti, kvn, mhaupt
Contributed-by: John Rose <john.r.rose@oracle.com>, Christian Thalinger <christian.thalinger@oracle.com>, Michael Haupt <michael.haupt@oracle.com>
| author | twisti |
|---|---|
| date | Tue, 24 Jul 2012 10:51:00 -0700 |
| parents | 90d5a592ea8f |
| children | 957c266d8bc5 bb3f6194fedb |
| 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 * | |
|
1552
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
20 * or visit www.oracle.com if you need additional information or have any |
|
c18cbe5936b8
6941466: Oracle rebranding changes for Hotspot repositories
trims
parents:
1506
diff
changeset
|
21 * questions. |
| 0 | 22 * |
| 23 */ | |
| 24 | |
| 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" | |
| 6197 | 38 #include "services/memTracker.hpp" |
| 1972 | 39 #include "utilities/defaultStream.hpp" |
| 40 #include "utilities/taskqueue.hpp" | |
| 41 #ifdef TARGET_OS_FAMILY_linux | |
| 42 # include "os_linux.inline.hpp" | |
| 43 #endif | |
| 44 #ifdef TARGET_OS_FAMILY_solaris | |
| 45 # include "os_solaris.inline.hpp" | |
| 46 #endif | |
| 47 #ifdef TARGET_OS_FAMILY_windows | |
| 48 # include "os_windows.inline.hpp" | |
| 49 #endif | |
| 3960 | 50 #ifdef TARGET_OS_FAMILY_bsd |
| 51 # include "os_bsd.inline.hpp" | |
| 52 #endif | |
| 1972 | 53 #ifndef SERIALGC |
| 54 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" | |
| 55 #endif | |
| 0 | 56 |
| 2474 | 57 // Note: This is a special bug reporting site for the JVM |
| 58 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
| 0 | 59 #define DEFAULT_JAVA_LAUNCHER "generic" |
| 60 | |
| 61 char** Arguments::_jvm_flags_array = NULL; | |
| 62 int Arguments::_num_jvm_flags = 0; | |
| 63 char** Arguments::_jvm_args_array = NULL; | |
| 64 int Arguments::_num_jvm_args = 0; | |
| 65 char* Arguments::_java_command = NULL; | |
| 66 SystemProperty* Arguments::_system_properties = NULL; | |
| 67 const char* Arguments::_gc_log_filename = NULL; | |
| 68 bool Arguments::_has_profile = false; | |
| 69 bool Arguments::_has_alloc_profile = false; | |
| 70 uintx Arguments::_min_heap_size = 0; | |
| 71 Arguments::Mode Arguments::_mode = _mixed; | |
| 72 bool Arguments::_java_compiler = false; | |
| 73 bool Arguments::_xdebug_mode = false; | |
| 74 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
| 75 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
| 76 int Arguments::_sun_java_launcher_pid = -1; | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
77 bool Arguments::_created_by_gamma_launcher = false; |
| 0 | 78 |
| 79 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
| 80 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 81 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 82 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 83 bool Arguments::_ClipInlining = ClipInlining; | |
| 84 | |
| 85 char* Arguments::SharedArchivePath = NULL; | |
| 86 | |
| 87 AgentLibraryList Arguments::_libraryList; | |
| 88 AgentLibraryList Arguments::_agentList; | |
| 89 | |
| 90 abort_hook_t Arguments::_abort_hook = NULL; | |
| 91 exit_hook_t Arguments::_exit_hook = NULL; | |
| 92 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
| 93 | |
| 94 | |
| 95 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
| 96 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
| 97 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
| 98 SystemProperty *Arguments::_java_library_path = NULL; | |
| 99 SystemProperty *Arguments::_java_home = NULL; | |
| 100 SystemProperty *Arguments::_java_class_path = NULL; | |
| 101 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
| 102 | |
| 103 char* Arguments::_meta_index_path = NULL; | |
| 104 char* Arguments::_meta_index_dir = NULL; | |
| 105 | |
| 106 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
| 107 | |
| 108 static bool match_option(const JavaVMOption *option, const char* name, | |
| 109 const char** tail) { | |
| 110 int len = (int)strlen(name); | |
| 111 if (strncmp(option->optionString, name, len) == 0) { | |
| 112 *tail = option->optionString + len; | |
| 113 return true; | |
| 114 } else { | |
| 115 return false; | |
| 116 } | |
| 117 } | |
| 118 | |
| 119 static void logOption(const char* opt) { | |
| 120 if (PrintVMOptions) { | |
| 121 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
| 122 } | |
| 123 } | |
| 124 | |
| 125 // Process java launcher properties. | |
| 126 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
| 127 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
| 128 // Must do this before setting up other system properties, | |
| 129 // as some of them may depend on launcher type. | |
| 130 for (int index = 0; index < args->nOptions; index++) { | |
| 131 const JavaVMOption* option = args->options + index; | |
| 132 const char* tail; | |
| 133 | |
| 134 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
| 135 process_java_launcher_argument(tail, option->extraInfo); | |
| 136 continue; | |
| 137 } | |
| 138 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
| 139 _sun_java_launcher_pid = atoi(tail); | |
| 140 continue; | |
| 141 } | |
| 142 } | |
| 143 } | |
| 144 | |
| 145 // Initialize system properties key and value. | |
| 146 void Arguments::init_system_properties() { | |
| 147 | |
| 148 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
| 149 "Java Virtual Machine Specification", false)); | |
| 150 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
| 151 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
| 152 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
| 153 | |
| 154 // following are JVMTI agent writeable properties. | |
| 155 // Properties values are set to NULL and they are | |
| 156 // os specific they are initialized in os::init_system_properties_values(). | |
| 157 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
| 158 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
| 159 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
| 160 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
| 161 _java_home = new SystemProperty("java.home", NULL, true); | |
| 162 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
| 163 | |
| 164 _java_class_path = new SystemProperty("java.class.path", "", true); | |
| 165 | |
| 166 // Add to System Property list. | |
| 167 PropertyList_add(&_system_properties, _java_ext_dirs); | |
| 168 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
| 169 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
| 170 PropertyList_add(&_system_properties, _java_library_path); | |
| 171 PropertyList_add(&_system_properties, _java_home); | |
| 172 PropertyList_add(&_system_properties, _java_class_path); | |
| 173 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
| 174 | |
| 175 // Set OS specific system properties values | |
| 176 os::init_system_properties_values(); | |
| 177 } | |
| 178 | |
|
1864
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
179 |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
180 // Update/Initialize System properties after JDK version number is known |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
181 void Arguments::init_version_specific_system_properties() { |
|
1956
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
182 enum { bufsz = 16 }; |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
183 char buffer[bufsz]; |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
184 const char* spec_vendor = "Sun Microsystems Inc."; |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
185 uint32_t spec_version = 0; |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
186 |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
187 if (JDK_Version::is_gte_jdk17x_version()) { |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
188 spec_vendor = "Oracle Corporation"; |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
189 spec_version = JDK_Version::current().major_version(); |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
190 } |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
191 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
192 |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
193 PropertyList_add(&_system_properties, |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
194 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
195 PropertyList_add(&_system_properties, |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
196 new SystemProperty("java.vm.specification.version", buffer, false)); |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
197 PropertyList_add(&_system_properties, |
|
35f885165c69
6981737: The java.vm.specification.version property is 1.0, seems like it should be 2.0
kamg
parents:
1875
diff
changeset
|
198 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
|
1864
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
199 } |
|
dfb38ea7da17
6988363: Rebrand vm vendor property settings (jdk7 only)
zgu
parents:
1805
diff
changeset
|
200 |
| 242 | 201 /** |
| 202 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
| 203 * When a flag is eliminated, it can be added to this list in order to | |
| 204 * continue accepting this flag on the command-line, while issuing a warning | |
| 205 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
| 206 * limit, we flatly refuse to admit the existence of the flag. This allows | |
| 207 * a flag to die correctly over JDK releases using HSX. | |
| 208 */ | |
| 209 typedef struct { | |
| 210 const char* name; | |
| 211 JDK_Version obsoleted_in; // when the flag went away | |
| 212 JDK_Version accept_until; // which version to start denying the existence | |
| 213 } ObsoleteFlag; | |
| 0 | 214 |
| 242 | 215 static ObsoleteFlag obsolete_jvm_flags[] = { |
| 216 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 217 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 218 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 219 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 220 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 221 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 222 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 223 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 224 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 225 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 226 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 227 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 228 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
| 229 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
| 1064 | 230 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
| 231 { "DefaultInitialRAMFraction", | |
| 232 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
|
1706
9d7a8ab3736b
6962589: remove breadth first scanning code from parallel gc
tonyp
parents:
1628
diff
changeset
|
233 { "UseDepthFirstScavengeOrder", |
|
9d7a8ab3736b
6962589: remove breadth first scanning code from parallel gc
tonyp
parents:
1628
diff
changeset
|
234 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
|
1888
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
235 { "HandlePromotionFailure", |
|
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
236 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
|
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
237 { "MaxLiveObjectEvacuationRatio", |
|
a7214d79fcf1
6896603: CMS/GCH: collection_attempt_is_safe() ergo should use more recent data
ysr
parents:
1832
diff
changeset
|
238 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
239 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
|
3251
eda9eb483d29
6841742: par compact - remove unused/unsupported options
jcoomes
parents:
3250
diff
changeset
|
240 { "UseParallelOldGCCompacting", |
|
eda9eb483d29
6841742: par compact - remove unused/unsupported options
jcoomes
parents:
3250
diff
changeset
|
241 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
|
eda9eb483d29
6841742: par compact - remove unused/unsupported options
jcoomes
parents:
3250
diff
changeset
|
242 { "UseParallelDensePrefixUpdate", |
|
eda9eb483d29
6841742: par compact - remove unused/unsupported options
jcoomes
parents:
3250
diff
changeset
|
243 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
|
eda9eb483d29
6841742: par compact - remove unused/unsupported options
jcoomes
parents:
3250
diff
changeset
|
244 { "UseParallelOldGCDensePrefix", |
|
eda9eb483d29
6841742: par compact - remove unused/unsupported options
jcoomes
parents:
3250
diff
changeset
|
245 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
| 2460 | 246 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
247 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
248 #ifdef PRODUCT |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
249 { "DesiredMethodLimit", |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
250 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
251 #endif // PRODUCT |
| 242 | 252 { NULL, JDK_Version(0), JDK_Version(0) } |
| 253 }; | |
| 254 | |
| 255 // Returns true if the flag is obsolete and fits into the range specified | |
| 256 // for being ignored. In the case that the flag is ignored, the 'version' | |
| 257 // value is filled in with the version number when the flag became | |
| 258 // obsolete so that that value can be displayed to the user. | |
| 259 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
| 0 | 260 int i = 0; |
| 242 | 261 assert(version != NULL, "Must provide a version buffer"); |
| 262 while (obsolete_jvm_flags[i].name != NULL) { | |
| 263 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
| 0 | 264 // <flag>=xxx form |
| 265 // [-|+]<flag> form | |
| 242 | 266 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
| 0 | 267 ((s[0] == '+' || s[0] == '-') && |
| 242 | 268 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
| 269 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
| 270 *version = flag_status.obsoleted_in; | |
| 271 return true; | |
| 272 } | |
| 0 | 273 } |
| 274 i++; | |
| 275 } | |
| 276 return false; | |
| 277 } | |
| 278 | |
| 279 // Constructs the system class path (aka boot class path) from the following | |
| 280 // components, in order: | |
| 281 // | |
| 282 // prefix // from -Xbootclasspath/p:... | |
| 283 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
| 284 // base // from os::get_system_properties() or -Xbootclasspath= | |
| 285 // suffix // from -Xbootclasspath/a:... | |
| 286 // | |
| 287 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
| 288 // directories are added to the sysclasspath just before the base. | |
| 289 // | |
| 290 // This could be AllStatic, but it isn't needed after argument processing is | |
| 291 // complete. | |
| 292 class SysClassPath: public StackObj { | |
| 293 public: | |
| 294 SysClassPath(const char* base); | |
| 295 ~SysClassPath(); | |
| 296 | |
| 297 inline void set_base(const char* base); | |
| 298 inline void add_prefix(const char* prefix); | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
299 inline void add_suffix_to_prefix(const char* suffix); |
| 0 | 300 inline void add_suffix(const char* suffix); |
| 301 inline void reset_path(const char* base); | |
| 302 | |
| 303 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
| 304 // property. Must be called after all command-line arguments have been | |
| 305 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
| 306 // combined_path(). | |
| 307 void expand_endorsed(); | |
| 308 | |
| 309 inline const char* get_base() const { return _items[_scp_base]; } | |
| 310 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
| 311 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
| 312 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
| 313 | |
| 314 // Combine all the components into a single c-heap-allocated string; caller | |
| 315 // must free the string if/when no longer needed. | |
| 316 char* combined_path(); | |
| 317 | |
| 318 private: | |
| 319 // Utility routines. | |
| 320 static char* add_to_path(const char* path, const char* str, bool prepend); | |
| 321 static char* add_jars_to_path(char* path, const char* directory); | |
| 322 | |
| 323 inline void reset_item_at(int index); | |
| 324 | |
| 325 // Array indices for the items that make up the sysclasspath. All except the | |
| 326 // base are allocated in the C heap and freed by this class. | |
| 327 enum { | |
| 328 _scp_prefix, // from -Xbootclasspath/p:... | |
| 329 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
| 330 _scp_base, // the default sysclasspath | |
| 331 _scp_suffix, // from -Xbootclasspath/a:... | |
| 332 _scp_nitems // the number of items, must be last. | |
| 333 }; | |
| 334 | |
| 335 const char* _items[_scp_nitems]; | |
| 336 DEBUG_ONLY(bool _expansion_done;) | |
| 337 }; | |
| 338 | |
| 339 SysClassPath::SysClassPath(const char* base) { | |
| 340 memset(_items, 0, sizeof(_items)); | |
| 341 _items[_scp_base] = base; | |
| 342 DEBUG_ONLY(_expansion_done = false;) | |
| 343 } | |
| 344 | |
| 345 SysClassPath::~SysClassPath() { | |
| 346 // Free everything except the base. | |
| 347 for (int i = 0; i < _scp_nitems; ++i) { | |
| 348 if (i != _scp_base) reset_item_at(i); | |
| 349 } | |
| 350 DEBUG_ONLY(_expansion_done = false;) | |
| 351 } | |
| 352 | |
| 353 inline void SysClassPath::set_base(const char* base) { | |
| 354 _items[_scp_base] = base; | |
| 355 } | |
| 356 | |
| 357 inline void SysClassPath::add_prefix(const char* prefix) { | |
| 358 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
| 359 } | |
| 360 | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
361 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
362 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
363 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
364 |
| 0 | 365 inline void SysClassPath::add_suffix(const char* suffix) { |
| 366 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
| 367 } | |
| 368 | |
| 369 inline void SysClassPath::reset_item_at(int index) { | |
| 370 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
| 371 if (_items[index] != NULL) { | |
| 6197 | 372 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
| 0 | 373 _items[index] = NULL; |
| 374 } | |
| 375 } | |
| 376 | |
| 377 inline void SysClassPath::reset_path(const char* base) { | |
| 378 // Clear the prefix and suffix. | |
| 379 reset_item_at(_scp_prefix); | |
| 380 reset_item_at(_scp_suffix); | |
| 381 set_base(base); | |
| 382 } | |
| 383 | |
| 384 //------------------------------------------------------------------------------ | |
| 385 | |
| 386 void SysClassPath::expand_endorsed() { | |
| 387 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
| 388 | |
| 389 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
| 390 if (path == NULL) { | |
| 391 path = Arguments::get_endorsed_dir(); | |
| 392 assert(path != NULL, "no default for java.endorsed.dirs"); | |
| 393 } | |
| 394 | |
| 395 char* expanded_path = NULL; | |
| 396 const char separator = *os::path_separator(); | |
| 397 const char* const end = path + strlen(path); | |
| 398 while (path < end) { | |
| 399 const char* tmp_end = strchr(path, separator); | |
| 400 if (tmp_end == NULL) { | |
| 401 expanded_path = add_jars_to_path(expanded_path, path); | |
| 402 path = end; | |
| 403 } else { | |
| 6197 | 404 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
| 0 | 405 memcpy(dirpath, path, tmp_end - path); |
| 406 dirpath[tmp_end - path] = '\0'; | |
| 407 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
| 6197 | 408 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
| 0 | 409 path = tmp_end + 1; |
| 410 } | |
| 411 } | |
| 412 _items[_scp_endorsed] = expanded_path; | |
| 413 DEBUG_ONLY(_expansion_done = true;) | |
| 414 } | |
| 415 | |
| 416 // Combine the bootclasspath elements, some of which may be null, into a single | |
| 417 // c-heap-allocated string. | |
| 418 char* SysClassPath::combined_path() { | |
| 419 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
| 420 assert(_expansion_done, "must call expand_endorsed() first."); | |
| 421 | |
| 422 size_t lengths[_scp_nitems]; | |
| 423 size_t total_len = 0; | |
| 424 | |
| 425 const char separator = *os::path_separator(); | |
| 426 | |
| 427 // Get the lengths. | |
| 428 int i; | |
| 429 for (i = 0; i < _scp_nitems; ++i) { | |
| 430 if (_items[i] != NULL) { | |
| 431 lengths[i] = strlen(_items[i]); | |
| 432 // Include space for the separator char (or a NULL for the last item). | |
| 433 total_len += lengths[i] + 1; | |
| 434 } | |
| 435 } | |
| 436 assert(total_len > 0, "empty sysclasspath not allowed"); | |
| 437 | |
| 438 // Copy the _items to a single string. | |
| 6197 | 439 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
| 0 | 440 char* cp_tmp = cp; |
| 441 for (i = 0; i < _scp_nitems; ++i) { | |
| 442 if (_items[i] != NULL) { | |
| 443 memcpy(cp_tmp, _items[i], lengths[i]); | |
| 444 cp_tmp += lengths[i]; | |
| 445 *cp_tmp++ = separator; | |
| 446 } | |
| 447 } | |
| 448 *--cp_tmp = '\0'; // Replace the extra separator. | |
| 449 return cp; | |
| 450 } | |
| 451 | |
| 452 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 453 char* | |
| 454 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
| 455 char *cp; | |
| 456 | |
| 457 assert(str != NULL, "just checking"); | |
| 458 if (path == NULL) { | |
| 459 size_t len = strlen(str) + 1; | |
| 6197 | 460 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 461 memcpy(cp, str, len); // copy the trailing null |
| 462 } else { | |
| 463 const char separator = *os::path_separator(); | |
| 464 size_t old_len = strlen(path); | |
| 465 size_t str_len = strlen(str); | |
| 466 size_t len = old_len + str_len + 2; | |
| 467 | |
| 468 if (prepend) { | |
| 6197 | 469 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 470 char* cp_tmp = cp; |
| 471 memcpy(cp_tmp, str, str_len); | |
| 472 cp_tmp += str_len; | |
| 473 *cp_tmp = separator; | |
| 474 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
| 6197 | 475 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
| 0 | 476 } else { |
| 6197 | 477 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
| 0 | 478 char* cp_tmp = cp + old_len; |
| 479 *cp_tmp = separator; | |
| 480 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
| 481 } | |
| 482 } | |
| 483 return cp; | |
| 484 } | |
| 485 | |
| 486 // Scan the directory and append any jar or zip files found to path. | |
| 487 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 488 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
| 489 DIR* dir = os::opendir(directory); | |
| 490 if (dir == NULL) return path; | |
| 491 | |
| 492 char dir_sep[2] = { '\0', '\0' }; | |
| 493 size_t directory_len = strlen(directory); | |
| 494 const char fileSep = *os::file_separator(); | |
| 495 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
| 496 | |
| 497 /* Scan the directory for jars/zips, appending them to path. */ | |
| 498 struct dirent *entry; | |
| 6197 | 499 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
| 0 | 500 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
| 501 const char* name = entry->d_name; | |
| 502 const char* ext = name + strlen(name) - 4; | |
| 503 bool isJarOrZip = ext > name && | |
| 504 (os::file_name_strcmp(ext, ".jar") == 0 || | |
| 505 os::file_name_strcmp(ext, ".zip") == 0); | |
| 506 if (isJarOrZip) { | |
| 6197 | 507 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
| 0 | 508 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
| 509 path = add_to_path(path, jarpath, false); | |
| 6197 | 510 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
| 0 | 511 } |
| 512 } | |
| 6197 | 513 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
| 0 | 514 os::closedir(dir); |
| 515 return path; | |
| 516 } | |
| 517 | |
| 518 // Parses a memory size specification string. | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
519 static bool atomull(const char *s, julong* result) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
520 julong n = 0; |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
521 int args_read = sscanf(s, os::julong_format_specifier(), &n); |
| 0 | 522 if (args_read != 1) { |
| 523 return false; | |
| 524 } | |
| 525 while (*s != '\0' && isdigit(*s)) { | |
| 526 s++; | |
| 527 } | |
| 528 // 4705540: illegal if more characters are found after the first non-digit | |
| 529 if (strlen(s) > 1) { | |
| 530 return false; | |
| 531 } | |
| 532 switch (*s) { | |
| 533 case 'T': case 't': | |
| 534 *result = n * G * K; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
535 // Check for overflow. |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
536 if (*result/((julong)G * K) != n) return false; |
| 0 | 537 return true; |
| 538 case 'G': case 'g': | |
| 539 *result = n * G; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
540 if (*result/G != n) return false; |
| 0 | 541 return true; |
| 542 case 'M': case 'm': | |
| 543 *result = n * M; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
544 if (*result/M != n) return false; |
| 0 | 545 return true; |
| 546 case 'K': case 'k': | |
| 547 *result = n * K; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
548 if (*result/K != n) return false; |
| 0 | 549 return true; |
| 550 case '\0': | |
| 551 *result = n; | |
| 552 return true; | |
| 553 default: | |
| 554 return false; | |
| 555 } | |
| 556 } | |
| 557 | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
558 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
| 0 | 559 if (size < min_size) return arg_too_small; |
| 560 // Check that size will fit in a size_t (only relevant on 32-bit) | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
561 if (size > max_uintx) return arg_too_big; |
| 0 | 562 return arg_in_range; |
| 563 } | |
| 564 | |
| 565 // Describe an argument out of range error | |
| 566 void Arguments::describe_range_error(ArgsRange errcode) { | |
| 567 switch(errcode) { | |
| 568 case arg_too_big: | |
| 569 jio_fprintf(defaultStream::error_stream(), | |
| 570 "The specified size exceeds the maximum " | |
| 571 "representable size.\n"); | |
| 572 break; | |
| 573 case arg_too_small: | |
| 574 case arg_unreadable: | |
| 575 case arg_in_range: | |
| 576 // do nothing for now | |
| 577 break; | |
| 578 default: | |
| 579 ShouldNotReachHere(); | |
| 580 } | |
| 581 } | |
| 582 | |
| 583 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
| 584 return CommandLineFlags::boolAtPut(name, &value, origin); | |
| 585 } | |
| 586 | |
| 587 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
| 588 double v; | |
| 589 if (sscanf(value, "%lf", &v) != 1) { | |
| 590 return false; | |
| 591 } | |
| 592 | |
| 593 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
| 594 return true; | |
| 595 } | |
| 596 return false; | |
| 597 } | |
| 598 | |
| 599 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
600 julong v; |
| 0 | 601 intx intx_v; |
| 602 bool is_neg = false; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
603 // Check the sign first since atomull() parses only unsigned values. |
| 0 | 604 if (*value == '-') { |
| 605 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
| 606 return false; | |
| 607 } | |
| 608 value++; | |
| 609 is_neg = true; | |
| 610 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
611 if (!atomull(value, &v)) { |
| 0 | 612 return false; |
| 613 } | |
| 614 intx_v = (intx) v; | |
| 615 if (is_neg) { | |
| 616 intx_v = -intx_v; | |
| 617 } | |
| 618 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
| 619 return true; | |
| 620 } | |
| 621 uintx uintx_v = (uintx) v; | |
| 622 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
| 623 return true; | |
| 624 } | |
| 1064 | 625 uint64_t uint64_t_v = (uint64_t) v; |
| 626 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
| 627 return true; | |
| 628 } | |
| 0 | 629 return false; |
| 630 } | |
| 631 | |
| 632 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
| 633 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
| 634 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 635 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 636 return true; |
| 637 } | |
| 638 | |
| 639 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
| 640 const char* old_value = ""; | |
| 641 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
| 642 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
| 643 size_t new_len = strlen(new_value); | |
| 644 const char* value; | |
| 645 char* free_this_too = NULL; | |
| 646 if (old_len == 0) { | |
| 647 value = new_value; | |
| 648 } else if (new_len == 0) { | |
| 649 value = old_value; | |
| 650 } else { | |
| 6197 | 651 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
| 0 | 652 // each new setting adds another LINE to the switch: |
| 653 sprintf(buf, "%s\n%s", old_value, new_value); | |
| 654 value = buf; | |
| 655 free_this_too = buf; | |
| 656 } | |
| 657 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
| 658 // CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 659 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 660 if (free_this_too != NULL) { |
| 661 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
| 6197 | 662 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
| 0 | 663 } |
| 664 return true; | |
| 665 } | |
| 666 | |
| 667 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
| 668 | |
| 669 // range of acceptable characters spelled out for portability reasons | |
| 670 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
| 671 #define BUFLEN 255 | |
| 672 char name[BUFLEN+1]; | |
| 673 char dummy; | |
| 674 | |
| 675 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 676 return set_bool_flag(name, false, origin); | |
| 677 } | |
| 678 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 679 return set_bool_flag(name, true, origin); | |
| 680 } | |
| 681 | |
| 682 char punct; | |
| 683 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
| 684 const char* value = strchr(arg, '=') + 1; | |
| 685 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 686 if (flag != NULL && flag->is_ccstr()) { | |
| 687 if (flag->ccstr_accumulates()) { | |
| 688 return append_to_string_flag(name, value, origin); | |
| 689 } else { | |
| 690 if (value[0] == '\0') { | |
| 691 value = NULL; | |
| 692 } | |
| 693 return set_string_flag(name, value, origin); | |
| 694 } | |
| 695 } | |
| 696 } | |
| 697 | |
| 698 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
| 699 const char* value = strchr(arg, '=') + 1; | |
| 700 // -XX:Foo:=xxx will reset the string flag to the given value. | |
| 701 if (value[0] == '\0') { | |
| 702 value = NULL; | |
| 703 } | |
| 704 return set_string_flag(name, value, origin); | |
| 705 } | |
| 706 | |
| 707 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
| 708 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
| 709 #define NUMBER_RANGE "[0123456789]" | |
| 710 char value[BUFLEN + 1]; | |
| 711 char value2[BUFLEN + 1]; | |
| 712 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
| 713 // Looks like a floating-point number -- try again with more lenient format string | |
| 714 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
| 715 return set_fp_numeric_flag(name, value, origin); | |
| 716 } | |
| 717 } | |
| 718 | |
| 719 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
| 720 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
| 721 return set_numeric_flag(name, value, origin); | |
| 722 } | |
| 723 | |
| 724 return false; | |
| 725 } | |
| 726 | |
| 727 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
| 728 assert(bldarray != NULL, "illegal argument"); | |
| 729 | |
| 730 if (arg == NULL) { | |
| 731 return; | |
| 732 } | |
| 733 | |
| 734 int index = *count; | |
| 735 | |
| 736 // expand the array and add arg to the last element | |
| 737 (*count)++; | |
| 738 if (*bldarray == NULL) { | |
| 6197 | 739 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
| 0 | 740 } else { |
| 6197 | 741 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
| 0 | 742 } |
| 743 (*bldarray)[index] = strdup(arg); | |
| 744 } | |
| 745 | |
| 746 void Arguments::build_jvm_args(const char* arg) { | |
| 747 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
| 748 } | |
| 749 | |
| 750 void Arguments::build_jvm_flags(const char* arg) { | |
| 751 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
| 752 } | |
| 753 | |
| 754 // utility function to return a string that concatenates all | |
| 755 // strings in a given char** array | |
| 756 const char* Arguments::build_resource_string(char** args, int count) { | |
| 757 if (args == NULL || count == 0) { | |
| 758 return NULL; | |
| 759 } | |
| 760 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
| 761 for (int i = 1; i < count; i++) { | |
| 762 length += strlen(args[i]) + 1; // add 1 for a space | |
| 763 } | |
| 764 char* s = NEW_RESOURCE_ARRAY(char, length); | |
| 765 strcpy(s, args[0]); | |
| 766 for (int j = 1; j < count; j++) { | |
| 767 strcat(s, " "); | |
| 768 strcat(s, args[j]); | |
| 769 } | |
| 770 return (const char*) s; | |
| 771 } | |
| 772 | |
| 773 void Arguments::print_on(outputStream* st) { | |
| 774 st->print_cr("VM Arguments:"); | |
| 775 if (num_jvm_flags() > 0) { | |
| 776 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
| 777 } | |
| 778 if (num_jvm_args() > 0) { | |
| 779 st->print("jvm_args: "); print_jvm_args_on(st); | |
| 780 } | |
| 781 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
| 782 st->print_cr("Launcher Type: %s", _sun_java_launcher); | |
| 783 } | |
| 784 | |
| 785 void Arguments::print_jvm_flags_on(outputStream* st) { | |
| 786 if (_num_jvm_flags > 0) { | |
| 787 for (int i=0; i < _num_jvm_flags; i++) { | |
| 788 st->print("%s ", _jvm_flags_array[i]); | |
| 789 } | |
| 790 st->print_cr(""); | |
| 791 } | |
| 792 } | |
| 793 | |
| 794 void Arguments::print_jvm_args_on(outputStream* st) { | |
| 795 if (_num_jvm_args > 0) { | |
| 796 for (int i=0; i < _num_jvm_args; i++) { | |
| 797 st->print("%s ", _jvm_args_array[i]); | |
| 798 } | |
| 799 st->print_cr(""); | |
| 800 } | |
| 801 } | |
| 802 | |
| 242 | 803 bool Arguments::process_argument(const char* arg, |
| 804 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
| 805 | |
| 806 JDK_Version since = JDK_Version(); | |
| 0 | 807 |
| 3250 | 808 if (parse_argument(arg, origin) || ignore_unrecognized) { |
| 809 return true; | |
| 0 | 810 } |
| 3250 | 811 |
| 812 const char * const argname = *arg == '+' || *arg == '-' ? arg + 1 : arg; | |
| 813 if (is_newly_obsolete(arg, &since)) { | |
| 814 char version[256]; | |
| 815 since.to_string(version, sizeof(version)); | |
| 816 warning("ignoring option %s; support was removed in %s", argname, version); | |
| 817 return true; | |
| 818 } | |
| 819 | |
|
5947
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
820 // For locked flags, report a custom error message if available. |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
821 // Otherwise, report the standard unrecognized VM option. |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
822 |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
823 Flag* locked_flag = Flag::find_flag((char*)argname, strlen(argname), true); |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
824 if (locked_flag != NULL) { |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
825 char locked_message_buf[BUFLEN]; |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
826 locked_flag->get_locked_message(locked_message_buf, BUFLEN); |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
827 if (strlen(locked_message_buf) == 0) { |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
828 jio_fprintf(defaultStream::error_stream(), |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
829 "Unrecognized VM option '%s'\n", argname); |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
830 } else { |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
831 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
832 } |
| 6017 | 833 } else { |
| 834 jio_fprintf(defaultStream::error_stream(), | |
| 835 "Unrecognized VM option '%s'\n", argname); | |
|
5947
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
836 } |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
837 |
| 3250 | 838 // allow for commandline "commenting out" options like -XX:#+Verbose |
| 839 return arg[0] == '#'; | |
| 0 | 840 } |
| 841 | |
| 842 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
| 843 FILE* stream = fopen(file_name, "rb"); | |
| 844 if (stream == NULL) { | |
| 845 if (should_exist) { | |
| 846 jio_fprintf(defaultStream::error_stream(), | |
| 847 "Could not open settings file %s\n", file_name); | |
| 848 return false; | |
| 849 } else { | |
| 850 return true; | |
| 851 } | |
| 852 } | |
| 853 | |
| 854 char token[1024]; | |
| 855 int pos = 0; | |
| 856 | |
| 857 bool in_white_space = true; | |
| 858 bool in_comment = false; | |
| 859 bool in_quote = false; | |
| 860 char quote_c = 0; | |
| 861 bool result = true; | |
| 862 | |
| 863 int c = getc(stream); | |
| 864 while(c != EOF) { | |
| 865 if (in_white_space) { | |
| 866 if (in_comment) { | |
| 867 if (c == '\n') in_comment = false; | |
| 868 } else { | |
| 869 if (c == '#') in_comment = true; | |
| 870 else if (!isspace(c)) { | |
| 871 in_white_space = false; | |
| 872 token[pos++] = c; | |
| 873 } | |
| 874 } | |
| 875 } else { | |
| 876 if (c == '\n' || (!in_quote && isspace(c))) { | |
| 877 // token ends at newline, or at unquoted whitespace | |
| 878 // this allows a way to include spaces in string-valued options | |
| 879 token[pos] = '\0'; | |
| 880 logOption(token); | |
| 881 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 882 build_jvm_flags(token); | |
| 883 pos = 0; | |
| 884 in_white_space = true; | |
| 885 in_quote = false; | |
| 886 } else if (!in_quote && (c == '\'' || c == '"')) { | |
| 887 in_quote = true; | |
| 888 quote_c = c; | |
| 889 } else if (in_quote && (c == quote_c)) { | |
| 890 in_quote = false; | |
| 891 } else { | |
| 892 token[pos++] = c; | |
| 893 } | |
| 894 } | |
| 895 c = getc(stream); | |
| 896 } | |
| 897 if (pos > 0) { | |
| 898 token[pos] = '\0'; | |
| 899 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 900 build_jvm_flags(token); | |
| 901 } | |
| 902 fclose(stream); | |
| 903 return result; | |
| 904 } | |
| 905 | |
| 906 //============================================================================================================= | |
| 907 // Parsing of properties (-D) | |
| 908 | |
| 909 const char* Arguments::get_property(const char* key) { | |
| 910 return PropertyList_get_value(system_properties(), key); | |
| 911 } | |
| 912 | |
| 913 bool Arguments::add_property(const char* prop) { | |
| 914 const char* eq = strchr(prop, '='); | |
| 915 char* key; | |
| 916 // ns must be static--its address may be stored in a SystemProperty object. | |
| 917 const static char ns[1] = {0}; | |
| 918 char* value = (char *)ns; | |
| 919 | |
| 920 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
| 6197 | 921 key = AllocateHeap(key_len + 1, mtInternal); |
| 0 | 922 strncpy(key, prop, key_len); |
| 923 key[key_len] = '\0'; | |
| 924 | |
| 925 if (eq != NULL) { | |
| 926 size_t value_len = strlen(prop) - key_len - 1; | |
| 6197 | 927 value = AllocateHeap(value_len + 1, mtInternal); |
| 0 | 928 strncpy(value, &prop[key_len + 1], value_len + 1); |
| 929 } | |
| 930 | |
| 931 if (strcmp(key, "java.compiler") == 0) { | |
| 932 process_java_compiler_argument(value); | |
| 933 FreeHeap(key); | |
| 934 if (eq != NULL) { | |
| 935 FreeHeap(value); | |
| 936 } | |
| 937 return true; | |
| 691 | 938 } else if (strcmp(key, "sun.java.command") == 0) { |
| 0 | 939 _java_command = value; |
| 940 | |
|
2129
8f8dfba37802
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
2095
diff
changeset
|
941 // Record value in Arguments, but let it get passed to Java. |
| 691 | 942 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
| 0 | 943 // launcher.pid property is private and is processed |
| 944 // in process_sun_java_launcher_properties(); | |
| 945 // the sun.java.launcher property is passed on to the java application | |
| 946 FreeHeap(key); | |
| 947 if (eq != NULL) { | |
| 948 FreeHeap(value); | |
| 949 } | |
| 950 return true; | |
| 691 | 951 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 0 | 952 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 953 // its value without going through the property list or making a Java call. | |
| 954 _java_vendor_url_bug = value; | |
| 691 | 955 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 956 PropertyList_unique_add(&_system_properties, key, value, true); | |
| 957 return true; | |
| 0 | 958 } |
| 959 // Create new property and add at the end of the list | |
| 960 PropertyList_unique_add(&_system_properties, key, value); | |
| 961 return true; | |
| 962 } | |
| 963 | |
| 964 //=========================================================================================================== | |
| 965 // Setting int/mixed/comp mode flags | |
| 966 | |
| 967 void Arguments::set_mode_flags(Mode mode) { | |
| 968 // Set up default values for all flags. | |
| 969 // If you add a flag to any of the branches below, | |
| 970 // add a default value for it here. | |
| 971 set_java_compiler(false); | |
| 972 _mode = mode; | |
| 973 | |
| 974 // Ensure Agent_OnLoad has the correct initial values. | |
| 975 // This may not be the final mode; mode may change later in onload phase. | |
| 976 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
|
3326
6c978a541c03
7036267: c2/arm: mark version number as experimental and disable on unsupported platforms
dholmes
parents:
3261
diff
changeset
|
977 (char*)VM_Version::vm_info_string(), false); |
| 0 | 978 |
| 979 UseInterpreter = true; | |
| 980 UseCompiler = true; | |
| 981 UseLoopCounter = true; | |
| 982 | |
|
2458
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
983 #ifndef ZERO |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
984 // Turn these off for mixed and comp. Leave them on for Zero. |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
985 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
986 UseFastAccessorMethods = (mode == _int); |
|
2458
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
987 } |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
988 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
989 UseFastEmptyMethods = (mode == _int); |
|
2458
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
990 } |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
991 #endif |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
992 |
| 0 | 993 // Default values may be platform/compiler dependent - |
| 994 // use the saved values | |
| 995 ClipInlining = Arguments::_ClipInlining; | |
| 996 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
| 997 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
| 998 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
| 999 | |
| 1000 // Change from defaults based on mode | |
| 1001 switch (mode) { | |
| 1002 default: | |
| 1003 ShouldNotReachHere(); | |
| 1004 break; | |
| 1005 case _int: | |
| 1006 UseCompiler = false; | |
| 1007 UseLoopCounter = false; | |
| 1008 AlwaysCompileLoopMethods = false; | |
| 1009 UseOnStackReplacement = false; | |
| 1010 break; | |
| 1011 case _mixed: | |
| 1012 // same as default | |
| 1013 break; | |
| 1014 case _comp: | |
| 1015 UseInterpreter = false; | |
| 1016 BackgroundCompilation = false; | |
| 1017 ClipInlining = false; | |
|
4758
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1018 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1019 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1020 // compile a level 4 (C2) and then continue executing it. |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1021 if (TieredCompilation) { |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1022 Tier3InvokeNotifyFreqLog = 0; |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1023 Tier4InvocationThreshold = 0; |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1024 } |
| 0 | 1025 break; |
| 1026 } | |
| 1027 } | |
| 1028 | |
| 1029 // Conflict: required to use shared spaces (-Xshare:on), but | |
| 1030 // incompatible command line options were chosen. | |
| 1031 | |
| 1032 static void no_shared_spaces() { | |
| 1033 if (RequireSharedSpaces) { | |
| 1034 jio_fprintf(defaultStream::error_stream(), | |
| 1035 "Class data sharing is inconsistent with other specified options.\n"); | |
| 1036 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
| 1037 } else { | |
| 1038 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 1039 } | |
| 1040 } | |
| 1041 | |
| 1783 | 1042 void Arguments::set_tiered_flags() { |
|
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
2325
diff
changeset
|
1043 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
| 1783 | 1044 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
|
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
2325
diff
changeset
|
1045 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
| 1783 | 1046 } |
| 1047 if (CompilationPolicyChoice < 2) { | |
| 1048 vm_exit_during_initialization( | |
| 1049 "Incompatible compilation policy selected", NULL); | |
| 1050 } | |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
1051 // Increase the code cache size - tiered compiles a lot more. |
| 1783 | 1052 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
| 1053 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
| 1054 } | |
| 1055 } | |
| 1056 | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1057 #ifndef KERNEL |
| 4838 | 1058 static void disable_adaptive_size_policy(const char* collector_name) { |
| 1059 if (UseAdaptiveSizePolicy) { | |
| 1060 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
| 1061 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
| 1062 collector_name); | |
| 1063 } | |
| 1064 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
| 1065 } | |
| 1066 } | |
| 1067 | |
| 0 | 1068 // If the user has chosen ParallelGCThreads > 0, we set UseParNewGC |
| 1069 // if it's not explictly set or unset. If the user has chosen | |
| 1070 // UseParNewGC and not explicitly set ParallelGCThreads we | |
| 1071 // set it, unless this is a single cpu machine. | |
| 1072 void Arguments::set_parnew_gc_flags() { | |
| 1064 | 1073 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1074 "control point invariant"); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1075 assert(UseParNewGC, "Error"); |
| 0 | 1076 |
| 4838 | 1077 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
| 1078 disable_adaptive_size_policy("UseParNewGC"); | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1079 |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1080 if (ParallelGCThreads == 0) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1081 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1082 Abstract_VM_Version::parallel_worker_threads()); |
| 1064 | 1083 if (ParallelGCThreads == 1) { |
| 0 | 1084 FLAG_SET_DEFAULT(UseParNewGC, false); |
| 1064 | 1085 FLAG_SET_DEFAULT(ParallelGCThreads, 0); |
| 0 | 1086 } |
| 1087 } | |
| 1064 | 1088 if (UseParNewGC) { |
| 1089 // CDS doesn't work with ParNew yet | |
| 0 | 1090 no_shared_spaces(); |
| 1091 | |
| 695 | 1092 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
| 0 | 1093 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
| 1094 // we set them to 1024 and 1024. | |
| 1095 // See CR 6362902. | |
| 1096 if (FLAG_IS_DEFAULT(YoungPLABSize)) { | |
| 1097 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); | |
| 1098 } | |
| 1099 if (FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1100 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); | |
| 1101 } | |
| 1102 | |
| 1064 | 1103 // AlwaysTenure flag should make ParNew promote all at first collection. |
| 0 | 1104 // See CR 6362902. |
| 1105 if (AlwaysTenure) { | |
| 1106 FLAG_SET_CMDLINE(intx, MaxTenuringThreshold, 0); | |
| 1107 } | |
| 695 | 1108 // When using compressed oops, we use local overflow stacks, |
| 1109 // rather than using a global overflow list chained through | |
| 1110 // the klass word of the object's pre-image. | |
| 1111 if (UseCompressedOops && !ParGCUseLocalOverflow) { | |
| 1112 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { | |
| 1113 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); | |
| 1114 } | |
| 1115 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); | |
| 1116 } | |
| 1117 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); | |
| 0 | 1118 } |
| 1119 } | |
| 1120 | |
| 1121 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
| 1122 // sparc/solaris for certain applications, but would gain from | |
| 1123 // further optimization and tuning efforts, and would almost | |
| 1124 // certainly gain from analysis of platform and environment. | |
| 1125 void Arguments::set_cms_and_parnew_gc_flags() { | |
| 1064 | 1126 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1127 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1128 |
| 0 | 1129 // If we are using CMS, we prefer to UseParNewGC, |
| 1130 // unless explicitly forbidden. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1131 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1132 FLAG_SET_ERGO(bool, UseParNewGC, true); |
| 0 | 1133 } |
| 1134 | |
| 4838 | 1135 // Turn off AdaptiveSizePolicy for CMS until it is complete. |
| 1136 disable_adaptive_size_policy("UseConcMarkSweepGC"); | |
| 0 | 1137 |
| 1138 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
| 1139 // as needed. | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1140 if (UseParNewGC) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1141 set_parnew_gc_flags(); |
| 0 | 1142 } |
| 1143 | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1144 // MaxHeapSize is aligned down in collectorPolicy |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1145 size_t max_heap = align_size_down(MaxHeapSize, |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1146 CardTableRS::ct_max_alignment_constraint()); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1147 |
| 0 | 1148 // Now make adjustments for CMS |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1149 intx tenuring_default = (intx)6; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1150 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1151 |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1152 // Preferred young gen size for "short" pauses: |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1153 // upper bound depends on # of threads and NewRatio. |
| 0 | 1154 const uintx parallel_gc_threads = |
| 1155 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
| 1156 const size_t preferred_max_new_size_unaligned = | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1157 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1158 size_t preferred_max_new_size = |
| 0 | 1159 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
| 1160 | |
| 1161 // Unless explicitly requested otherwise, size young gen | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1162 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1163 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1164 // If either MaxNewSize or NewRatio is set on the command line, |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1165 // assume the user is trying to set the size of the young gen. |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1166 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1167 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1168 // Set MaxNewSize to our calculated preferred_max_new_size unless |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1169 // NewSize was set on the command line and it is larger than |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1170 // preferred_max_new_size. |
| 0 | 1171 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1172 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
| 0 | 1173 } else { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1174 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
| 0 | 1175 } |
| 1064 | 1176 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1177 // Too early to use gclog_or_tty |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1178 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1179 } |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1180 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1181 // Code along this path potentially sets NewSize and OldSize |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1182 |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1183 assert(max_heap >= InitialHeapSize, "Error"); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1184 assert(max_heap >= NewSize, "Error"); |
| 0 | 1185 |
| 1064 | 1186 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1187 // Too early to use gclog_or_tty |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1188 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1189 " initial_heap_size: " SIZE_FORMAT |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1190 " max_heap: " SIZE_FORMAT, |
| 1064 | 1191 min_heap_size(), InitialHeapSize, max_heap); |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1192 } |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1193 size_t min_new = preferred_max_new_size; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1194 if (FLAG_IS_CMDLINE(NewSize)) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1195 min_new = NewSize; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1196 } |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1197 if (max_heap > min_new && min_heap_size() > min_new) { |
| 0 | 1198 // Unless explicitly requested otherwise, make young gen |
| 1199 // at least min_new, and at most preferred_max_new_size. | |
| 1200 if (FLAG_IS_DEFAULT(NewSize)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1201 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1202 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
| 1064 | 1203 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1204 // Too early to use gclog_or_tty |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1205 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1206 } |
| 0 | 1207 } |
| 1208 // Unless explicitly requested otherwise, size old gen | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1209 // so it's NewRatio x of NewSize. |
| 0 | 1210 if (FLAG_IS_DEFAULT(OldSize)) { |
| 1211 if (max_heap > NewSize) { | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1212 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
| 1064 | 1213 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1214 // Too early to use gclog_or_tty |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1215 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1216 } |
| 0 | 1217 } |
| 1218 } | |
| 1219 } | |
| 1220 } | |
| 1221 // Unless explicitly requested otherwise, definitely | |
| 1222 // promote all objects surviving "tenuring_default" scavenges. | |
| 1223 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
| 1224 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1225 FLAG_SET_ERGO(intx, MaxTenuringThreshold, tenuring_default); |
| 0 | 1226 } |
| 1227 // If we decided above (or user explicitly requested) | |
| 1228 // `promote all' (via MaxTenuringThreshold := 0), | |
| 1229 // prefer minuscule survivor spaces so as not to waste | |
| 1230 // space for (non-existent) survivors | |
| 1231 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1232 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
| 0 | 1233 } |
| 1234 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
| 1235 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
| 1236 // This is done in order to make ParNew+CMS configuration to work | |
| 1237 // with YoungPLABSize and OldPLABSize options. | |
| 1238 // See CR 6362902. | |
| 1239 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1240 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1241 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1242 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1243 // the value (either from the command line or ergonomics) of |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1244 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1245 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1246 } else { |
| 0 | 1247 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
| 1248 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
| 1249 // we'll let it to take precedence. | |
| 1250 jio_fprintf(defaultStream::error_stream(), | |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1251 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1252 " options are specified for the CMS collector." |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1253 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
| 0 | 1254 } |
| 1255 } | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1256 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1257 // OldPLAB sizing manually turned off: Use a larger default setting, |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1258 // unless it was manually specified. This is because a too-low value |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1259 // will slow down scavenges. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1260 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1261 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1262 } |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1263 } |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1264 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1265 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1266 // If either of the static initialization defaults have changed, note this |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1267 // modification. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1268 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1269 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1270 } |
| 1284 | 1271 if (PrintGCDetails && Verbose) { |
| 1272 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1273 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1274 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1275 } | |
| 0 | 1276 } |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1277 #endif // KERNEL |
| 0 | 1278 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1279 void set_object_alignment() { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1280 // Object alignment. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1281 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1282 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1283 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1284 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1285 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1286 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1287 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1288 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1289 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1290 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1291 // Oop encoding heap max |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1292 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1293 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1294 #ifndef KERNEL |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1295 // Set CMS global values |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1296 CompactibleFreeListSpace::set_cms_values(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1297 #endif // KERNEL |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1298 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1299 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1300 bool verify_object_alignment() { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1301 // Object alignment. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1302 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1303 jio_fprintf(defaultStream::error_stream(), |
|
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1304 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1305 (int)ObjectAlignmentInBytes); |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1306 return false; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1307 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1308 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1309 jio_fprintf(defaultStream::error_stream(), |
|
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1310 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1311 (int)ObjectAlignmentInBytes, BytesPerLong); |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1312 return false; |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1313 } |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1314 // It does not make sense to have big object alignment |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1315 // since a space lost due to alignment will be greater |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1316 // then a saved space from compressed oops. |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1317 if ((int)ObjectAlignmentInBytes > 256) { |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1318 jio_fprintf(defaultStream::error_stream(), |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1319 "error: ObjectAlignmentInBytes=%d must not be greater then 256\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1320 (int)ObjectAlignmentInBytes); |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1321 return false; |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1322 } |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1323 // In case page size is very small. |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1324 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1325 jio_fprintf(defaultStream::error_stream(), |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1326 "error: ObjectAlignmentInBytes=%d must be less then page size %d\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1327 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1328 return false; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1329 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1330 return true; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1331 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1332 |
|
135
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1333 inline uintx max_heap_for_compressed_oops() { |
| 1963 | 1334 // Avoid sign flip. |
| 1335 if (OopEncodingHeapMax < MaxPermSize + os::vm_page_size()) { | |
| 1336 return 0; | |
| 1337 } | |
| 1338 LP64_ONLY(return OopEncodingHeapMax - MaxPermSize - os::vm_page_size()); | |
| 1064 | 1339 NOT_LP64(ShouldNotReachHere(); return 0); |
|
135
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1340 } |
|
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1341 |
| 0 | 1342 bool Arguments::should_auto_select_low_pause_collector() { |
| 1343 if (UseAutoGCSelectPolicy && | |
| 1344 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
| 1345 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
| 1346 if (PrintGCDetails) { | |
| 1347 // Cannot use gclog_or_tty yet. | |
| 1348 tty->print_cr("Automatic selection of the low pause collector" | |
| 1349 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
| 1350 } | |
| 1351 return true; | |
| 1352 } | |
| 1353 return false; | |
| 1354 } | |
| 1355 | |
| 1356 void Arguments::set_ergonomics_flags() { | |
| 1357 // Parallel GC is not compatible with sharing. If one specifies | |
| 1064 | 1358 // that they want sharing explicitly, do not set ergonomics flags. |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
1359 if (DumpSharedSpaces || RequireSharedSpaces) { |
| 0 | 1360 return; |
| 1361 } | |
| 1362 | |
| 4946 | 1363 if (os::is_server_class_machine()) { |
| 0 | 1364 // If no other collector is requested explicitly, |
| 1365 // let the VM select the collector based on | |
| 1366 // machine class and automatic selection policy. | |
| 1367 if (!UseSerialGC && | |
| 1368 !UseConcMarkSweepGC && | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1369 !UseG1GC && |
| 0 | 1370 !UseParNewGC && |
| 1371 !DumpSharedSpaces && | |
| 1372 FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1373 if (should_auto_select_low_pause_collector()) { | |
| 1374 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
| 1375 } else { | |
| 1376 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
| 1377 } | |
| 1378 no_shared_spaces(); | |
| 1379 } | |
| 1380 } | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1381 |
| 1010 | 1382 #ifndef ZERO |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1383 #ifdef _LP64 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1384 // Check that UseCompressedOops can be set with the max heap size allocated |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1385 // by ergonomics. |
| 187 | 1386 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
| 1783 | 1387 #if !defined(COMPILER1) || defined(TIERED) |
| 2228 | 1388 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 932 | 1389 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1390 } |
| 1060 | 1391 #endif |
|
325
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1392 #ifdef _WIN64 |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1393 if (UseLargePages && UseCompressedOops) { |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1394 // Cannot allocate guard pages for implicit checks in indexed addressing |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1395 // mode, when large pages are specified on windows. |
|
642
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1396 // This flag could be switched ON if narrow oop base address is set to 0, |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1397 // see code in Universe::initialize_heap(). |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1398 Universe::set_narrow_oop_use_implicit_null_checks(false); |
|
325
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1399 } |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1400 #endif // _WIN64 |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1401 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1402 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 344 | 1403 warning("Max heap size too large for Compressed Oops"); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1404 FLAG_SET_DEFAULT(UseCompressedOops, false); |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1405 } |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1406 } |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1407 // Also checks that certain machines are slower with compressed oops |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1408 // in vm_version initialization code. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1409 #endif // _LP64 |
| 1010 | 1410 #endif // !ZERO |
| 0 | 1411 } |
| 1412 | |
| 1413 void Arguments::set_parallel_gc_flags() { | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1414 assert(UseParallelGC || UseParallelOldGC, "Error"); |
| 4879 | 1415 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
| 1416 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
| 1417 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
| 0 | 1418 } |
| 4879 | 1419 FLAG_SET_DEFAULT(UseParallelGC, true); |
| 0 | 1420 |
| 1421 // If no heap maximum was requested explicitly, use some reasonable fraction | |
| 1422 // of the physical memory, up to a maximum of 1GB. | |
| 1423 if (UseParallelGC) { | |
|
4095
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4039
diff
changeset
|
1424 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4039
diff
changeset
|
1425 Abstract_VM_Version::parallel_worker_threads()); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1426 |
| 0 | 1427 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
| 1428 // SurvivorRatio has been set, reset their default values to SurvivorRatio + | |
| 1429 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. | |
| 1430 // See CR 6362902 for details. | |
| 1431 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 1432 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { | |
| 1433 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); | |
| 1434 } | |
| 1435 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { | |
| 1436 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); | |
| 1437 } | |
| 1438 } | |
| 1439 | |
| 1440 if (UseParallelOldGC) { | |
| 1441 // Par compact uses lower default values since they are treated as | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1442 // minimums. These are different defaults because of the different |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1443 // interpretation and are not ergonomically set. |
| 0 | 1444 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1445 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
| 0 | 1446 } |
| 1447 if (FLAG_IS_DEFAULT(PermMarkSweepDeadRatio)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1448 FLAG_SET_DEFAULT(PermMarkSweepDeadRatio, 5); |
| 0 | 1449 } |
| 1450 } | |
| 1451 } | |
|
3322
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1452 if (UseNUMA) { |
|
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1453 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
|
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1454 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
|
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1455 } |
| 3885 | 1456 // For those collectors or operating systems (eg, Windows) that do |
| 1457 // not support full UseNUMA, we will map to UseNUMAInterleaving for now | |
| 1458 UseNUMAInterleaving = true; | |
|
3322
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1459 } |
| 0 | 1460 } |
| 1461 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1462 void Arguments::set_g1_gc_flags() { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1463 assert(UseG1GC, "Error"); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1464 #ifdef COMPILER1 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1465 FastTLABRefill = false; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1466 #endif |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1467 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1468 Abstract_VM_Version::parallel_worker_threads()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1469 if (ParallelGCThreads == 0) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1470 FLAG_SET_DEFAULT(ParallelGCThreads, |
| 751 | 1471 Abstract_VM_Version::parallel_worker_threads()); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1472 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1473 no_shared_spaces(); |
| 751 | 1474 |
| 1284 | 1475 if (FLAG_IS_DEFAULT(MarkStackSize)) { |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1284
diff
changeset
|
1476 FLAG_SET_DEFAULT(MarkStackSize, 128 * TASKQUEUE_SIZE); |
| 1284 | 1477 } |
| 1478 if (PrintGCDetails && Verbose) { | |
| 1479 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1480 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1481 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1482 } | |
| 1356 | 1483 |
| 1484 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
| 1485 // In G1, we want the default GC overhead goal to be higher than | |
| 1486 // say in PS. So we set it here to 10%. Otherwise the heap might | |
| 1487 // be expanded more aggressively than we would like it to. In | |
| 1488 // fact, even 10% seems to not be high enough in some cases | |
| 1489 // (especially small GC stress tests that the main thing they do | |
| 1490 // is allocation). We might consider increase it further. | |
| 1491 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
| 1492 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1493 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1494 |
| 1064 | 1495 void Arguments::set_heap_size() { |
| 1496 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
| 1497 // Deprecated flag | |
| 1498 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
| 1499 } | |
| 1500 | |
| 1501 const julong phys_mem = | |
| 1502 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
| 1503 : (julong)MaxRAM; | |
| 1504 | |
| 1505 // If the maximum heap size has not been set with -Xmx, | |
| 1506 // then set it as fraction of the size of physical memory, | |
| 1507 // respecting the maximum and minimum sizes of the heap. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1508 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
| 1064 | 1509 julong reasonable_max = phys_mem / MaxRAMFraction; |
| 1510 | |
| 1511 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
| 1512 // Small physical memory, so use a minimum fraction of it for the heap | |
| 1513 reasonable_max = phys_mem / MinRAMFraction; | |
| 1514 } else { | |
| 1515 // Not-small physical memory, so require a heap at least | |
| 1516 // as large as MaxHeapSize | |
| 1517 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
| 1518 } | |
| 1519 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
| 1520 // Limit the heap size to ErgoHeapSizeLimit | |
| 1521 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1522 } |
| 1064 | 1523 if (UseCompressedOops) { |
| 1524 // Limit the heap size to the maximum possible when using compressed oops | |
| 1963 | 1525 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
| 1526 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
| 1527 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
| 1528 // but it should be not less than default MaxHeapSize. | |
| 1529 max_coop_heap -= HeapBaseMinAddress; | |
| 1530 } | |
| 1531 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
| 1064 | 1532 } |
| 1533 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
| 1534 | |
| 1535 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
| 1536 // An initial heap size was specified on the command line, | |
| 1537 // so be sure that the maximum size is consistent. Done | |
| 1538 // after call to allocatable_physical_memory because that | |
| 1539 // method might reduce the allocation size. | |
| 1540 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
| 1541 } | |
| 1542 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1543 if (PrintGCDetails && Verbose) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1544 // Cannot use gclog_or_tty yet. |
| 1064 | 1545 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1546 } |
| 1064 | 1547 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
| 1548 } | |
| 1549 | |
| 1550 // If the initial_heap_size has not been set with InitialHeapSize | |
| 1551 // or -Xms, then set it as fraction of the size of physical memory, | |
| 1552 // respecting the maximum and minimum sizes of the heap. | |
| 1553 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1554 julong reasonable_minimum = (julong)(OldSize + NewSize); |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1555 |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1556 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1557 |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1558 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1559 |
| 1064 | 1560 julong reasonable_initial = phys_mem / InitialRAMFraction; |
| 1561 | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1562 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
| 1064 | 1563 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1564 | |
| 1565 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
| 1566 | |
| 1567 if (PrintGCDetails && Verbose) { | |
| 1568 // Cannot use gclog_or_tty yet. | |
| 1569 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1570 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1571 } |
| 1064 | 1572 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1573 set_min_heap_size((uintx)reasonable_minimum); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1574 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1575 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1576 |
| 0 | 1577 // This must be called after ergonomics because we want bytecode rewriting |
| 1578 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
| 1579 void Arguments::set_bytecode_flags() { | |
| 1580 // Better not attempt to store into a read-only space. | |
| 1581 if (UseSharedSpaces) { | |
| 1582 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
| 1583 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1584 } | |
| 1585 | |
| 1586 if (!RewriteBytecodes) { | |
| 1587 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1588 } | |
| 1589 } | |
| 1590 | |
| 1591 // Aggressive optimization flags -XX:+AggressiveOpts | |
| 1592 void Arguments::set_aggressive_opts_flags() { | |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1593 #ifdef COMPILER2 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1594 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1595 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1596 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1597 } |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1598 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1599 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1600 } |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1601 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1602 // Feed the cache size setting into the JDK |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1603 char buffer[1024]; |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1604 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1605 add_property(buffer); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1606 } |
|
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1607 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1608 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1609 } |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1610 #endif |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1611 |
| 0 | 1612 if (AggressiveOpts) { |
| 61 | 1613 // Sample flag setting code |
| 1614 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
| 1615 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
| 1616 // } | |
| 0 | 1617 } |
| 1618 } | |
| 1619 | |
| 1620 //=========================================================================================================== | |
| 1621 // Parsing of java.compiler property | |
| 1622 | |
| 1623 void Arguments::process_java_compiler_argument(char* arg) { | |
| 1624 // For backwards compatibility, Djava.compiler=NONE or "" | |
| 1625 // causes us to switch to -Xint mode UNLESS -Xdebug | |
| 1626 // is also specified. | |
| 1627 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
| 1628 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
| 1629 } | |
| 1630 } | |
| 1631 | |
| 1632 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
| 1633 _sun_java_launcher = strdup(launcher); | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1634 if (strcmp("gamma", _sun_java_launcher) == 0) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1635 _created_by_gamma_launcher = true; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1636 } |
| 0 | 1637 } |
| 1638 | |
| 1639 bool Arguments::created_by_java_launcher() { | |
| 1640 assert(_sun_java_launcher != NULL, "property must have value"); | |
| 1641 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
| 1642 } | |
| 1643 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1644 bool Arguments::created_by_gamma_launcher() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1645 return _created_by_gamma_launcher; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1646 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1647 |
| 0 | 1648 //=========================================================================================================== |
| 1649 // Parsing of main arguments | |
| 1650 | |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1651 bool Arguments::verify_interval(uintx val, uintx min, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1652 uintx max, const char* name) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1653 // Returns true iff value is in the inclusive interval [min..max] |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1654 // false, otherwise. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1655 if (val >= min && val <= max) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1656 return true; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1657 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1658 jio_fprintf(defaultStream::error_stream(), |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1659 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1660 " and " UINTX_FORMAT "\n", |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1661 name, val, min, max); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1662 return false; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1663 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1664 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1665 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1666 // Returns true if given value is at least specified min threshold |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1667 // false, otherwise. |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1668 if (val >= min ) { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1669 return true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1670 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1671 jio_fprintf(defaultStream::error_stream(), |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1672 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1673 name, val, min); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1674 return false; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1675 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1676 |
| 0 | 1677 bool Arguments::verify_percentage(uintx value, const char* name) { |
| 1678 if (value <= 100) { | |
| 1679 return true; | |
| 1680 } | |
| 1681 jio_fprintf(defaultStream::error_stream(), | |
| 1682 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
| 1683 name, value); | |
| 1684 return false; | |
| 1685 } | |
| 1686 | |
| 1064 | 1687 static void force_serial_gc() { |
| 0 | 1688 FLAG_SET_DEFAULT(UseSerialGC, true); |
| 1689 FLAG_SET_DEFAULT(UseParNewGC, false); | |
| 1690 FLAG_SET_DEFAULT(UseConcMarkSweepGC, false); | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1691 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
| 0 | 1692 FLAG_SET_DEFAULT(UseParallelGC, false); |
| 1693 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1694 FLAG_SET_DEFAULT(UseG1GC, false); |
| 0 | 1695 } |
| 1696 | |
| 1697 static bool verify_serial_gc_flags() { | |
| 1698 return (UseSerialGC && | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1699 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1700 UseParallelGC || UseParallelOldGC)); |
| 0 | 1701 } |
| 1702 | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1703 // check if do gclog rotation |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1704 // +UseGCLogFileRotation is a must, |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1705 // no gc log rotation when log file not supplied or |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1706 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1707 void check_gclog_consistency() { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1708 if (UseGCLogFileRotation) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1709 if ((Arguments::gc_log_filename() == NULL) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1710 (NumberOfGCLogFiles == 0) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1711 (GCLogFileSize == 0)) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1712 jio_fprintf(defaultStream::output_stream(), |
|
3769
ef2d1b8f2dd4
7051430: CMS: ongoing CMS cycle should terminate abruptly to allow prompt JVM termination at exit
ysr
parents:
3767
diff
changeset
|
1713 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1714 "where num_of_file > 0 and num_of_size > 0\n" |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1715 "GC log rotation is turned off\n"); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1716 UseGCLogFileRotation = false; |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1717 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1718 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1719 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1720 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1721 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1722 jio_fprintf(defaultStream::output_stream(), |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1723 "GCLogFileSize changed to minimum 8K\n"); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1724 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1725 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1726 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1727 // Check consistency of GC selection |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1728 bool Arguments::check_gc_consistency() { |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1729 check_gclog_consistency(); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1730 bool status = true; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1731 // Ensure that the user has not selected conflicting sets |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1732 // of collectors. [Note: this check is merely a user convenience; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1733 // collectors over-ride each other so that only a non-conflicting |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1734 // set is selected; however what the user gets is not what they |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1735 // may have expected from the combination they asked for. It's |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1736 // better to reduce user confusion by not allowing them to |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1737 // select conflicting combinations. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1738 uint i = 0; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1739 if (UseSerialGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1740 if (UseConcMarkSweepGC || UseParNewGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1741 if (UseParallelGC || UseParallelOldGC) i++; |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1742 if (UseG1GC) i++; |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1743 if (i > 1) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1744 jio_fprintf(defaultStream::error_stream(), |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1745 "Conflicting collector combinations in option list; " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1746 "please refer to the release notes for the combinations " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1747 "allowed\n"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1748 status = false; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1749 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1750 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1751 return status; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1752 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1753 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1754 // Check stack pages settings |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1755 bool Arguments::check_stack_pages() |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1756 { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1757 bool status = true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1758 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1759 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1760 // greater stack shadow pages can't generate instruction to bang stack |
|
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1761 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1762 return status; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1763 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1764 |
| 0 | 1765 // Check the consistency of vm_init_args |
| 1766 bool Arguments::check_vm_args_consistency() { | |
| 1767 // Method for adding checks for flag consistency. | |
| 1768 // The intent is to warn the user of all possible conflicts, | |
| 1769 // before returning an error. | |
| 1770 // Note: Needs platform-dependent factoring. | |
| 1771 bool status = true; | |
| 1772 | |
| 1773 #if ( (defined(COMPILER2) && defined(SPARC))) | |
| 1774 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
| 1775 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
| 1776 // x86. Normally, VM_Version_init must be called from init_globals in | |
| 1777 // init.cpp, which is called by the initial java thread *after* arguments | |
| 1778 // have been parsed. VM_Version_init gets called twice on sparc. | |
| 1779 extern void VM_Version_init(); | |
| 1780 VM_Version_init(); | |
| 1781 if (!VM_Version::has_v9()) { | |
| 1782 jio_fprintf(defaultStream::error_stream(), | |
| 1783 "V8 Machine detected, Server requires V9\n"); | |
| 1784 status = false; | |
| 1785 } | |
| 1786 #endif /* COMPILER2 && SPARC */ | |
| 1787 | |
| 1788 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
| 1789 // builds so the cost of stack banging can be measured. | |
| 1790 #if (defined(PRODUCT) && defined(SOLARIS)) | |
| 1791 if (!UseBoundThreads && !UseStackBanging) { | |
| 1792 jio_fprintf(defaultStream::error_stream(), | |
| 1793 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
| 1794 | |
| 1795 status = false; | |
| 1796 } | |
| 1797 #endif | |
| 1798 | |
| 1799 if (TLABRefillWasteFraction == 0) { | |
| 1800 jio_fprintf(defaultStream::error_stream(), | |
| 1801 "TLABRefillWasteFraction should be a denominator, " | |
| 1802 "not " SIZE_FORMAT "\n", | |
| 1803 TLABRefillWasteFraction); | |
| 1804 status = false; | |
| 1805 } | |
| 1806 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1807 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
| 0 | 1808 "AdaptiveSizePolicyWeight"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1809 status = status && verify_percentage(AdaptivePermSizeWeight, "AdaptivePermSizeWeight"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1810 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1811 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1812 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
| 0 | 1813 |
| 1814 if (MinHeapFreeRatio > MaxHeapFreeRatio) { | |
| 1815 jio_fprintf(defaultStream::error_stream(), | |
| 1816 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
| 1817 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
| 1818 MinHeapFreeRatio, MaxHeapFreeRatio); | |
| 1819 status = false; | |
| 1820 } | |
| 1821 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
| 1822 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
| 1823 | |
| 1824 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
| 1825 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
| 1826 } | |
| 1827 | |
|
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1828 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1829 // Settings to encourage splitting. |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1830 if (!FLAG_IS_CMDLINE(NewRatio)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1831 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1832 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1833 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1834 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1835 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1836 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1837 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1838 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1839 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
| 0 | 1840 if (GCTimeLimit == 100) { |
| 1841 // Turn off gc-overhead-limit-exceeded checks | |
| 1842 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
| 1843 } | |
| 1844 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1845 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
| 0 | 1846 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1847 status = status && check_gc_consistency(); |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1848 status = status && check_stack_pages(); |
| 0 | 1849 |
| 1850 if (_has_alloc_profile) { | |
| 1851 if (UseParallelGC || UseParallelOldGC) { | |
| 1852 jio_fprintf(defaultStream::error_stream(), | |
| 1853 "error: invalid argument combination.\n" | |
| 1854 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1855 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
| 1856 status = false; | |
| 1857 } | |
| 1858 if (UseConcMarkSweepGC) { | |
| 1859 jio_fprintf(defaultStream::error_stream(), | |
| 1860 "error: invalid argument combination.\n" | |
| 1861 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1862 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
| 1863 status = false; | |
| 1864 } | |
| 1865 } | |
| 1866 | |
| 1867 if (CMSIncrementalMode) { | |
| 1868 if (!UseConcMarkSweepGC) { | |
| 1869 jio_fprintf(defaultStream::error_stream(), | |
| 1870 "error: invalid argument combination.\n" | |
| 1871 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
| 1872 "selected in order\nto use CMSIncrementalMode.\n"); | |
| 1873 status = false; | |
| 1874 } else { | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1875 status = status && verify_percentage(CMSIncrementalDutyCycle, |
| 0 | 1876 "CMSIncrementalDutyCycle"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1877 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
| 0 | 1878 "CMSIncrementalDutyCycleMin"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1879 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
| 0 | 1880 "CMSIncrementalSafetyFactor"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1881 status = status && verify_percentage(CMSIncrementalOffset, |
| 0 | 1882 "CMSIncrementalOffset"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1883 status = status && verify_percentage(CMSExpAvgFactor, |
| 0 | 1884 "CMSExpAvgFactor"); |
| 1885 // If it was not set on the command line, set | |
| 1886 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
| 1887 if (CMSInitiatingOccupancyFraction < 0) { | |
| 1888 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
| 1889 } | |
| 1890 } | |
| 1891 } | |
| 1892 | |
| 1893 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
| 1894 // insists that we hold the requisite locks so that the iteration is | |
| 1895 // MT-safe. For the verification at start-up and shut-down, we don't | |
| 1896 // yet have a good way of acquiring and releasing these locks, | |
| 1897 // which are not visible at the CollectedHeap level. We want to | |
| 1898 // be able to acquire these locks and then do the iteration rather | |
| 1899 // than just disable the lock verification. This will be fixed under | |
| 1900 // bug 4788986. | |
| 1901 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
| 1902 if (VerifyGCStartAt == 0) { | |
| 1903 warning("Heap verification at start-up disabled " | |
| 1904 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1905 VerifyGCStartAt = 1; // Disable verification at start-up | |
| 1906 } | |
| 1907 if (VerifyBeforeExit) { | |
| 1908 warning("Heap verification at shutdown disabled " | |
| 1909 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1910 VerifyBeforeExit = false; // Disable verification at shutdown | |
| 1911 } | |
| 1912 } | |
| 1913 | |
| 1914 // Note: only executed in non-PRODUCT mode | |
| 1915 if (!UseAsyncConcMarkSweepGC && | |
| 1916 (ExplicitGCInvokesConcurrent || | |
| 1917 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
| 1918 jio_fprintf(defaultStream::error_stream(), | |
| 1919 "error: +ExplictGCInvokesConcurrent[AndUnloadsClasses] conflicts" | |
| 1920 " with -UseAsyncConcMarkSweepGC"); | |
| 1921 status = false; | |
| 1922 } | |
| 1923 | |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1924 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
|
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1925 |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1926 #ifndef SERIALGC |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1927 if (UseG1GC) { |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1928 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1929 "InitiatingHeapOccupancyPercent"); |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1930 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1931 "G1RefProcDrainInterval"); |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1932 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1933 "G1ConcMarkStepDurationMillis"); |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1934 } |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1935 #endif |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1936 |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1937 status = status && verify_interval(RefDiscoveryPolicy, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1938 ReferenceProcessor::DiscoveryPolicyMin, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1939 ReferenceProcessor::DiscoveryPolicyMax, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1940 "RefDiscoveryPolicy"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1941 |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1942 // Limit the lower bound of this flag to 1 as it is used in a division |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1943 // expression. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1944 status = status && verify_interval(TLABWasteTargetPercent, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1945 1, 100, "TLABWasteTargetPercent"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1946 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1947 status = status && verify_object_alignment(); |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1948 |
| 0 | 1949 return status; |
| 1950 } | |
| 1951 | |
| 1952 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
| 1953 const char* option_type) { | |
| 1954 if (ignore) return false; | |
| 1955 | |
| 1956 const char* spacer = " "; | |
| 1957 if (option_type == NULL) { | |
| 1958 option_type = ++spacer; // Set both to the empty string. | |
| 1959 } | |
| 1960 | |
| 1961 if (os::obsolete_option(option)) { | |
| 1962 jio_fprintf(defaultStream::error_stream(), | |
| 1963 "Obsolete %s%soption: %s\n", option_type, spacer, | |
| 1964 option->optionString); | |
| 1965 return false; | |
| 1966 } else { | |
| 1967 jio_fprintf(defaultStream::error_stream(), | |
| 1968 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
| 1969 option->optionString); | |
| 1970 return true; | |
| 1971 } | |
| 1972 } | |
| 1973 | |
| 1974 static const char* user_assertion_options[] = { | |
| 1975 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
| 1976 }; | |
| 1977 | |
| 1978 static const char* system_assertion_options[] = { | |
| 1979 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
| 1980 }; | |
| 1981 | |
| 1982 // Return true if any of the strings in null-terminated array 'names' matches. | |
| 1983 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
| 1984 // the option must match exactly. | |
| 1985 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
| 1986 bool tail_allowed) { | |
| 1987 for (/* empty */; *names != NULL; ++names) { | |
| 1988 if (match_option(option, *names, tail)) { | |
| 1989 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
| 1990 return true; | |
| 1991 } | |
| 1992 } | |
| 1993 } | |
| 1994 return false; | |
| 1995 } | |
| 1996 | |
| 1284 | 1997 bool Arguments::parse_uintx(const char* value, |
| 1998 uintx* uintx_arg, | |
| 1999 uintx min_size) { | |
| 2000 | |
| 2001 // Check the sign first since atomull() parses only unsigned values. | |
| 2002 bool value_is_positive = !(*value == '-'); | |
| 2003 | |
| 2004 if (value_is_positive) { | |
| 2005 julong n; | |
| 2006 bool good_return = atomull(value, &n); | |
| 2007 if (good_return) { | |
| 2008 bool above_minimum = n >= min_size; | |
| 2009 bool value_is_too_large = n > max_uintx; | |
| 2010 | |
| 2011 if (above_minimum && !value_is_too_large) { | |
| 2012 *uintx_arg = n; | |
| 2013 return true; | |
| 2014 } | |
| 2015 } | |
| 2016 } | |
| 2017 return false; | |
| 2018 } | |
| 2019 | |
| 0 | 2020 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
|
2021 julong* long_arg, |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2022 julong min_size) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2023 if (!atomull(s, long_arg)) return arg_unreadable; |
| 0 | 2024 return check_memory_size(*long_arg, min_size); |
| 2025 } | |
| 2026 | |
| 2027 // Parse JavaVMInitArgs structure | |
| 2028 | |
| 2029 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
| 2030 // For components of the system classpath. | |
| 2031 SysClassPath scp(Arguments::get_sysclasspath()); | |
| 2032 bool scp_assembly_required = false; | |
| 2033 | |
| 2034 // Save default settings for some mode flags | |
| 2035 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 2036 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 2037 Arguments::_ClipInlining = ClipInlining; | |
| 2038 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 2039 | |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2040 // Setup flags for mixed which is the default |
|
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2041 set_mode_flags(_mixed); |
|
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2042 |
| 0 | 2043 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
| 2044 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
| 2045 if (result != JNI_OK) { | |
| 2046 return result; | |
| 2047 } | |
| 2048 | |
| 2049 // Parse JavaVMInitArgs structure passed in | |
| 2050 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
| 2051 if (result != JNI_OK) { | |
| 2052 return result; | |
| 2053 } | |
| 2054 | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2055 if (AggressiveOpts) { |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2056 // Insert alt-rt.jar between user-specified bootclasspath |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2057 // prefix and the default bootclasspath. os::set_boot_path() |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2058 // uses meta_index_dir as the default bootclasspath directory. |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2059 const char* altclasses_jar = "alt-rt.jar"; |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2060 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
|
2061 strlen(altclasses_jar); |
| 6197 | 2062 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2063 strcpy(altclasses_path, get_meta_index_dir()); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2064 strcat(altclasses_path, altclasses_jar); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2065 scp.add_suffix_to_prefix(altclasses_path); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2066 scp_assembly_required = true; |
| 6197 | 2067 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2068 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2069 |
| 5915 | 2070 if (WhiteBoxAPI) { |
| 2071 // Append wb.jar to bootclasspath if enabled | |
| 2072 const char* wb_jar = "wb.jar"; | |
| 2073 size_t wb_path_len = strlen(get_meta_index_dir()) + 1 + | |
| 2074 strlen(wb_jar); | |
| 6197 | 2075 char* wb_path = NEW_C_HEAP_ARRAY(char, wb_path_len, mtInternal); |
| 5915 | 2076 strcpy(wb_path, get_meta_index_dir()); |
| 2077 strcat(wb_path, wb_jar); | |
| 2078 scp.add_suffix(wb_path); | |
| 2079 scp_assembly_required = true; | |
| 6197 | 2080 FREE_C_HEAP_ARRAY(char, wb_path, mtInternal); |
| 5915 | 2081 } |
| 2082 | |
| 0 | 2083 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
| 2084 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
| 2085 if (result != JNI_OK) { | |
| 2086 return result; | |
| 2087 } | |
| 2088 | |
| 2089 // Do final processing now that all arguments have been parsed | |
| 2090 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
| 2091 if (result != JNI_OK) { | |
| 2092 return result; | |
| 2093 } | |
| 2094 | |
| 2095 return JNI_OK; | |
| 2096 } | |
| 2097 | |
| 2098 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
| 2099 SysClassPath* scp_p, | |
| 2100 bool* scp_assembly_required_p, | |
| 2101 FlagValueOrigin origin) { | |
| 2102 // Remaining part of option string | |
| 2103 const char* tail; | |
| 2104 | |
| 2105 // iterate over arguments | |
| 2106 for (int index = 0; index < args->nOptions; index++) { | |
| 2107 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
| 2108 | |
| 2109 const JavaVMOption* option = args->options + index; | |
| 2110 | |
| 2111 if (!match_option(option, "-Djava.class.path", &tail) && | |
| 2112 !match_option(option, "-Dsun.java.command", &tail) && | |
| 2113 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
| 2114 | |
| 2115 // add all jvm options to the jvm_args string. This string | |
| 2116 // is used later to set the java.vm.args PerfData string constant. | |
| 2117 // the -Djava.class.path and the -Dsun.java.command options are | |
| 2118 // omitted from jvm_args string as each have their own PerfData | |
| 2119 // string constant object. | |
| 2120 build_jvm_args(option->optionString); | |
| 2121 } | |
| 2122 | |
| 2123 // -verbose:[class/gc/jni] | |
| 2124 if (match_option(option, "-verbose", &tail)) { | |
| 2125 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
| 2126 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
| 2127 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2128 } else if (!strcmp(tail, ":gc")) { | |
| 2129 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2130 } else if (!strcmp(tail, ":jni")) { | |
| 2131 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
| 2132 } | |
| 2133 // -da / -ea / -disableassertions / -enableassertions | |
| 2134 // These accept an optional class/package name separated by a colon, e.g., | |
| 2135 // -da:java.lang.Thread. | |
| 2136 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
| 2137 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2138 if (*tail == '\0') { | |
| 2139 JavaAssertions::setUserClassDefault(enable); | |
| 2140 } else { | |
| 2141 assert(*tail == ':', "bogus match by match_option()"); | |
| 2142 JavaAssertions::addOption(tail + 1, enable); | |
| 2143 } | |
| 2144 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
| 2145 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
| 2146 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2147 JavaAssertions::setSystemClassDefault(enable); | |
| 2148 // -bootclasspath: | |
| 2149 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
| 2150 scp_p->reset_path(tail); | |
| 2151 *scp_assembly_required_p = true; | |
| 2152 // -bootclasspath/a: | |
| 2153 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
| 2154 scp_p->add_suffix(tail); | |
| 2155 *scp_assembly_required_p = true; | |
| 2156 // -bootclasspath/p: | |
| 2157 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
| 2158 scp_p->add_prefix(tail); | |
| 2159 *scp_assembly_required_p = true; | |
| 2160 // -Xrun | |
| 2161 } else if (match_option(option, "-Xrun", &tail)) { | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2162 if (tail != NULL) { |
| 0 | 2163 const char* pos = strchr(tail, ':'); |
| 2164 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2165 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2166 name[len] = '\0'; |
| 2167 | |
| 2168 char *options = NULL; | |
| 2169 if(pos != NULL) { | |
| 2170 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
| 6197 | 2171 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
| 0 | 2172 } |
| 2173 #ifdef JVMTI_KERNEL | |
| 2174 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
| 2175 warning("profiling and debugging agents are not supported with Kernel VM"); | |
| 2176 } else | |
| 2177 #endif // JVMTI_KERNEL | |
| 2178 add_init_library(name, options); | |
| 2179 } | |
| 2180 // -agentlib and -agentpath | |
| 2181 } else if (match_option(option, "-agentlib:", &tail) || | |
| 2182 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
| 2183 if(tail != NULL) { | |
| 2184 const char* pos = strchr(tail, '='); | |
| 2185 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2186 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2187 name[len] = '\0'; |
| 2188 | |
| 2189 char *options = NULL; | |
| 2190 if(pos != NULL) { | |
| 6197 | 2191 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
| 0 | 2192 } |
| 2193 #ifdef JVMTI_KERNEL | |
| 2194 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
| 2195 warning("profiling and debugging agents are not supported with Kernel VM"); | |
| 2196 } else | |
| 2197 #endif // JVMTI_KERNEL | |
| 2198 add_init_agent(name, options, is_absolute_path); | |
| 2199 | |
| 2200 } | |
| 2201 // -javaagent | |
| 2202 } else if (match_option(option, "-javaagent:", &tail)) { | |
| 2203 if(tail != NULL) { | |
| 6197 | 2204 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
| 0 | 2205 add_init_agent("instrument", options, false); |
| 2206 } | |
| 2207 // -Xnoclassgc | |
| 2208 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
| 2209 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
| 2210 // -Xincgc: i-CMS | |
| 2211 } else if (match_option(option, "-Xincgc", &tail)) { | |
| 2212 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2213 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
| 2214 // -Xnoincgc: no i-CMS | |
| 2215 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
| 2216 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2217 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
| 2218 // -Xconcgc | |
| 2219 } else if (match_option(option, "-Xconcgc", &tail)) { | |
| 2220 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2221 // -Xnoconcgc | |
| 2222 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
| 2223 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2224 // -Xbatch | |
| 2225 } else if (match_option(option, "-Xbatch", &tail)) { | |
| 2226 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2227 // -Xmn for compatibility with other JVM vendors | |
| 2228 } else if (match_option(option, "-Xmn", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2229 julong long_initial_eden_size = 0; |
| 0 | 2230 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
| 2231 if (errcode != arg_in_range) { | |
| 2232 jio_fprintf(defaultStream::error_stream(), | |
| 2233 "Invalid initial eden size: %s\n", option->optionString); | |
| 2234 describe_range_error(errcode); | |
| 2235 return JNI_EINVAL; | |
| 2236 } | |
| 1064 | 2237 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
| 2238 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
| 0 | 2239 // -Xms |
| 2240 } else if (match_option(option, "-Xms", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2241 julong long_initial_heap_size = 0; |
| 0 | 2242 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
| 2243 if (errcode != arg_in_range) { | |
| 2244 jio_fprintf(defaultStream::error_stream(), | |
| 2245 "Invalid initial heap size: %s\n", option->optionString); | |
| 2246 describe_range_error(errcode); | |
| 2247 return JNI_EINVAL; | |
| 2248 } | |
| 1064 | 2249 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
| 0 | 2250 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2251 set_min_heap_size(InitialHeapSize); |
| 0 | 2252 // -Xmx |
| 2253 } else if (match_option(option, "-Xmx", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2254 julong long_max_heap_size = 0; |
| 0 | 2255 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2256 if (errcode != arg_in_range) { | |
| 2257 jio_fprintf(defaultStream::error_stream(), | |
| 2258 "Invalid maximum heap size: %s\n", option->optionString); | |
| 2259 describe_range_error(errcode); | |
| 2260 return JNI_EINVAL; | |
| 2261 } | |
| 1064 | 2262 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
| 0 | 2263 // Xmaxf |
| 2264 } else if (match_option(option, "-Xmaxf", &tail)) { | |
| 2265 int maxf = (int)(atof(tail) * 100); | |
| 2266 if (maxf < 0 || maxf > 100) { | |
| 2267 jio_fprintf(defaultStream::error_stream(), | |
| 2268 "Bad max heap free percentage size: %s\n", | |
| 2269 option->optionString); | |
| 2270 return JNI_EINVAL; | |
| 2271 } else { | |
| 2272 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
| 2273 } | |
| 2274 // Xminf | |
| 2275 } else if (match_option(option, "-Xminf", &tail)) { | |
| 2276 int minf = (int)(atof(tail) * 100); | |
| 2277 if (minf < 0 || minf > 100) { | |
| 2278 jio_fprintf(defaultStream::error_stream(), | |
| 2279 "Bad min heap free percentage size: %s\n", | |
| 2280 option->optionString); | |
| 2281 return JNI_EINVAL; | |
| 2282 } else { | |
| 2283 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
| 2284 } | |
| 2285 // -Xss | |
| 2286 } else if (match_option(option, "-Xss", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2287 julong long_ThreadStackSize = 0; |
| 0 | 2288 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
| 2289 if (errcode != arg_in_range) { | |
| 2290 jio_fprintf(defaultStream::error_stream(), | |
| 2291 "Invalid thread stack size: %s\n", option->optionString); | |
| 2292 describe_range_error(errcode); | |
| 2293 return JNI_EINVAL; | |
| 2294 } | |
| 2295 // Internally track ThreadStackSize in units of 1024 bytes. | |
| 2296 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
| 2297 round_to((int)long_ThreadStackSize, K) / K); | |
| 2298 // -Xoss | |
| 2299 } else if (match_option(option, "-Xoss", &tail)) { | |
| 2300 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
| 2301 // -Xmaxjitcodesize | |
|
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2302 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
|
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2303 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2304 julong long_ReservedCodeCacheSize = 0; |
| 0 | 2305 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2306 (size_t)InitialCodeCacheSize); |
| 0 | 2307 if (errcode != arg_in_range) { |
| 2308 jio_fprintf(defaultStream::error_stream(), | |
|
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2309 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
|
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2310 option->optionString, InitialCodeCacheSize/K); |
| 0 | 2311 describe_range_error(errcode); |
| 2312 return JNI_EINVAL; | |
| 2313 } | |
| 2314 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
| 2315 // -green | |
| 2316 } else if (match_option(option, "-green", &tail)) { | |
| 2317 jio_fprintf(defaultStream::error_stream(), | |
| 2318 "Green threads support not available\n"); | |
| 2319 return JNI_EINVAL; | |
| 2320 // -native | |
| 2321 } else if (match_option(option, "-native", &tail)) { | |
| 2322 // HotSpot always uses native threads, ignore silently for compatibility | |
| 2323 // -Xsqnopause | |
| 2324 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
| 2325 // EVM option, ignore silently for compatibility | |
| 2326 // -Xrs | |
| 2327 } else if (match_option(option, "-Xrs", &tail)) { | |
| 2328 // Classic/EVM option, new functionality | |
| 2329 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
| 2330 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
| 2331 // change default internal VM signals used - lower case for back compat | |
| 2332 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
| 2333 // -Xoptimize | |
| 2334 } else if (match_option(option, "-Xoptimize", &tail)) { | |
| 2335 // EVM option, ignore silently for compatibility | |
| 2336 // -Xprof | |
| 2337 } else if (match_option(option, "-Xprof", &tail)) { | |
| 2338 #ifndef FPROF_KERNEL | |
| 2339 _has_profile = true; | |
| 2340 #else // FPROF_KERNEL | |
| 2341 // do we have to exit? | |
| 2342 warning("Kernel VM does not support flat profiling."); | |
| 2343 #endif // FPROF_KERNEL | |
| 2344 // -Xaprof | |
| 2345 } else if (match_option(option, "-Xaprof", &tail)) { | |
| 2346 _has_alloc_profile = true; | |
| 2347 // -Xconcurrentio | |
| 2348 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
| 2349 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
| 2350 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2351 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
| 2352 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2353 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
| 2354 | |
| 2355 // -Xinternalversion | |
| 2356 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
| 2357 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
| 2358 VM_Version::internal_vm_info_string()); | |
| 2359 vm_exit(0); | |
| 2360 #ifndef PRODUCT | |
| 2361 // -Xprintflags | |
| 2362 } else if (match_option(option, "-Xprintflags", &tail)) { | |
| 4773 | 2363 CommandLineFlags::printFlags(tty, false); |
| 0 | 2364 vm_exit(0); |
| 2365 #endif | |
| 2366 // -D | |
| 2367 } else if (match_option(option, "-D", &tail)) { | |
| 2368 if (!add_property(tail)) { | |
| 2369 return JNI_ENOMEM; | |
| 2370 } | |
| 2371 // Out of the box management support | |
| 2372 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
| 2373 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
| 2374 } | |
| 2375 // -Xint | |
| 2376 } else if (match_option(option, "-Xint", &tail)) { | |
| 2377 set_mode_flags(_int); | |
| 2378 // -Xmixed | |
| 2379 } else if (match_option(option, "-Xmixed", &tail)) { | |
| 2380 set_mode_flags(_mixed); | |
| 2381 // -Xcomp | |
| 2382 } else if (match_option(option, "-Xcomp", &tail)) { | |
| 2383 // for testing the compiler; turn off all flags that inhibit compilation | |
| 2384 set_mode_flags(_comp); | |
| 2385 | |
| 2386 // -Xshare:dump | |
| 2387 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
| 2388 #ifdef TIERED | |
| 2389 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2390 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2391 #elif defined(COMPILER2) | |
| 2392 vm_exit_during_initialization( | |
| 2393 "Dumping a shared archive is not supported on the Server JVM.", NULL); | |
| 2394 #elif defined(KERNEL) | |
| 2395 vm_exit_during_initialization( | |
| 2396 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
| 2397 #else | |
| 2398 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2399 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2400 #endif | |
| 2401 // -Xshare:on | |
| 2402 } else if (match_option(option, "-Xshare:on", &tail)) { | |
| 2403 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2404 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
| 2405 // -Xshare:auto | |
| 2406 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
| 2407 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2408 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2409 // -Xshare:off | |
| 2410 } else if (match_option(option, "-Xshare:off", &tail)) { | |
| 2411 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
| 2412 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2413 | |
| 2414 // -Xverify | |
| 2415 } else if (match_option(option, "-Xverify", &tail)) { | |
| 2416 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
| 2417 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
| 2418 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2419 } else if (strcmp(tail, ":remote") == 0) { | |
| 2420 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2421 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2422 } else if (strcmp(tail, ":none") == 0) { | |
| 2423 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2424 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
| 2425 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
| 2426 return JNI_EINVAL; | |
| 2427 } | |
| 2428 // -Xdebug | |
| 2429 } else if (match_option(option, "-Xdebug", &tail)) { | |
| 2430 // note this flag has been used, then ignore | |
| 2431 set_xdebug_mode(true); | |
| 2432 // -Xnoagent | |
| 2433 } else if (match_option(option, "-Xnoagent", &tail)) { | |
| 2434 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
| 2435 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
| 2436 // Bind user level threads to kernel threads (Solaris only) | |
| 2437 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
| 2438 } else if (match_option(option, "-Xloggc:", &tail)) { | |
| 2439 // Redirect GC output to the file. -Xloggc:<filename> | |
| 2440 // ostream_init_log(), when called will use this filename | |
| 2441 // to initialize a fileStream. | |
| 2442 _gc_log_filename = strdup(tail); | |
| 2443 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2444 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
| 2445 | |
| 2446 // JNI hooks | |
| 2447 } else if (match_option(option, "-Xcheck", &tail)) { | |
| 2448 if (!strcmp(tail, ":jni")) { | |
| 2449 CheckJNICalls = true; | |
| 2450 } else if (is_bad_option(option, args->ignoreUnrecognized, | |
| 2451 "check")) { | |
| 2452 return JNI_EINVAL; | |
| 2453 } | |
| 2454 } else if (match_option(option, "vfprintf", &tail)) { | |
| 2455 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
| 2456 } else if (match_option(option, "exit", &tail)) { | |
| 2457 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
| 2458 } else if (match_option(option, "abort", &tail)) { | |
| 2459 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
| 2460 // -XX:+AggressiveHeap | |
| 2461 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
| 2462 | |
| 2463 // This option inspects the machine and attempts to set various | |
| 2464 // parameters to be optimal for long-running, memory allocation | |
| 2465 // intensive jobs. It is intended for machines with large | |
| 2466 // amounts of cpu and memory. | |
| 2467 | |
| 2468 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
| 2469 // VM, but we may not be able to represent the total physical memory | |
| 2470 // available (like having 8gb of memory on a box but using a 32bit VM). | |
| 2471 // Thus, we need to make sure we're using a julong for intermediate | |
| 2472 // calculations. | |
| 2473 julong initHeapSize; | |
| 2474 julong total_memory = os::physical_memory(); | |
| 2475 | |
| 2476 if (total_memory < (julong)256*M) { | |
| 2477 jio_fprintf(defaultStream::error_stream(), | |
| 2478 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
| 2479 vm_exit(1); | |
| 2480 } | |
| 2481 | |
| 2482 // The heap size is half of available memory, or (at most) | |
| 2483 // all of possible memory less 160mb (leaving room for the OS | |
| 2484 // when using ISM). This is the maximum; because adaptive sizing | |
| 2485 // is turned on below, the actual space used may be smaller. | |
| 2486 | |
| 2487 initHeapSize = MIN2(total_memory / (julong)2, | |
| 2488 total_memory - (julong)160*M); | |
| 2489 | |
| 2490 // Make sure that if we have a lot of memory we cap the 32 bit | |
| 2491 // process space. The 64bit VM version of this function is a nop. | |
| 2492 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
| 2493 | |
| 2494 // The perm gen is separate but contiguous with the | |
| 2495 // object heap (and is reserved with it) so subtract it | |
| 2496 // from the heap size. | |
| 2497 if (initHeapSize > MaxPermSize) { | |
| 2498 initHeapSize = initHeapSize - MaxPermSize; | |
| 2499 } else { | |
| 2500 warning("AggressiveHeap and MaxPermSize values may conflict"); | |
| 2501 } | |
| 2502 | |
| 2503 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
| 2504 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
| 1064 | 2505 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
| 0 | 2506 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2507 set_min_heap_size(initHeapSize); |
| 0 | 2508 } |
| 2509 if (FLAG_IS_DEFAULT(NewSize)) { | |
| 2510 // Make the young generation 3/8ths of the total heap. | |
| 2511 FLAG_SET_CMDLINE(uintx, NewSize, | |
| 2512 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
| 2513 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
| 2514 } | |
| 2515 | |
| 2516 FLAG_SET_DEFAULT(UseLargePages, true); | |
| 2517 | |
| 2518 // Increase some data structure sizes for efficiency | |
| 2519 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
| 2520 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2521 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
| 2522 | |
| 2523 // See the OldPLABSize comment below, but replace 'after promotion' | |
| 2524 // with 'after copying'. YoungPLABSize is the size of the survivor | |
| 2525 // space per-gc-thread buffers. The default is 4kw. | |
| 2526 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
| 2527 | |
| 2528 // OldPLABSize is the size of the buffers in the old gen that | |
| 2529 // UseParallelGC uses to promote live data that doesn't fit in the | |
| 2530 // survivor spaces. At any given time, there's one for each gc thread. | |
| 2531 // The default size is 1kw. These buffers are rarely used, since the | |
| 2532 // survivor spaces are usually big enough. For specjbb, however, there | |
| 2533 // are occasions when there's lots of live data in the young gen | |
| 2534 // and we end up promoting some of it. We don't have a definite | |
| 2535 // explanation for why bumping OldPLABSize helps, but the theory | |
| 2536 // is that a bigger PLAB results in retaining something like the | |
| 2537 // original allocation order after promotion, which improves mutator | |
| 2538 // locality. A minor effect may be that larger PLABs reduce the | |
| 2539 // number of PLAB allocation events during gc. The value of 8kw | |
| 2540 // was arrived at by experimenting with specjbb. | |
| 2541 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
| 2542 | |
| 2543 // Enable parallel GC and adaptive generation sizing | |
| 2544 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2545 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2546 Abstract_VM_Version::parallel_worker_threads()); |
| 0 | 2547 |
| 2548 // Encourage steady state memory management | |
| 2549 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
| 2550 | |
| 2551 // This appears to improve mutator locality | |
| 2552 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2553 | |
| 2554 // Get around early Solaris scheduling bug | |
| 2555 // (affinity vs other jobs on system) | |
| 2556 // but disallow DR and offlining (5008695). | |
| 2557 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
| 2558 | |
| 2559 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
| 2560 // The last option must always win. | |
| 2561 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
| 2562 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
| 2563 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
| 2564 // The last option must always win. | |
| 2565 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
| 2566 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
| 2567 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
| 2568 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
| 2569 jio_fprintf(defaultStream::error_stream(), | |
| 2570 "Please use CMSClassUnloadingEnabled in place of " | |
| 2571 "CMSPermGenSweepingEnabled in the future\n"); | |
| 2572 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
| 2573 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
| 2574 jio_fprintf(defaultStream::error_stream(), | |
| 2575 "Please use -XX:+UseGCOverheadLimit in place of " | |
| 2576 "-XX:+UseGCTimeLimit in the future\n"); | |
| 2577 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
| 2578 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
| 2579 jio_fprintf(defaultStream::error_stream(), | |
| 2580 "Please use -XX:-UseGCOverheadLimit in place of " | |
| 2581 "-XX:-UseGCTimeLimit in the future\n"); | |
| 2582 // The TLE options are for compatibility with 1.3 and will be | |
| 2583 // removed without notice in a future release. These options | |
| 2584 // are not to be documented. | |
| 2585 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
| 2586 // No longer used. | |
| 2587 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
| 2588 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
| 2589 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
| 2590 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2591 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
| 2592 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
| 2593 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
| 2594 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
| 2595 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
| 2596 // No longer used. | |
| 2597 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2598 julong long_tlab_size = 0; |
| 0 | 2599 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
| 2600 if (errcode != arg_in_range) { | |
| 2601 jio_fprintf(defaultStream::error_stream(), | |
| 2602 "Invalid TLAB size: %s\n", option->optionString); | |
| 2603 describe_range_error(errcode); | |
| 2604 return JNI_EINVAL; | |
| 2605 } | |
| 2606 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
| 2607 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
| 2608 // No longer used. | |
| 2609 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
| 2610 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
| 2611 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
| 2612 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2613 SOLARIS_ONLY( | |
| 2614 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
| 2615 warning("-XX:+UsePermISM is obsolete."); | |
| 2616 FLAG_SET_CMDLINE(bool, UseISM, true); | |
| 2617 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
| 2618 FLAG_SET_CMDLINE(bool, UseISM, false); | |
| 2619 ) | |
| 2620 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
| 2621 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
| 2622 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
| 2623 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
| 2624 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
| 2625 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
| 2626 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
| 4006 | 2627 #if defined(DTRACE_ENABLED) |
| 0 | 2628 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
| 2629 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
| 2630 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
| 2631 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
| 4006 | 2632 #else // defined(DTRACE_ENABLED) |
| 0 | 2633 jio_fprintf(defaultStream::error_stream(), |
| 4006 | 2634 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
| 0 | 2635 return JNI_EINVAL; |
| 4006 | 2636 #endif // defined(DTRACE_ENABLED) |
| 0 | 2637 #ifdef ASSERT |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2638 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
| 0 | 2639 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
| 2640 // disable scavenge before parallel mark-compact | |
| 2641 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2642 #endif | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2643 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
| 0 | 2644 julong cms_blocks_to_claim = (julong)atol(tail); |
| 2645 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
| 2646 jio_fprintf(defaultStream::error_stream(), | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2647 "Please use -XX:OldPLABSize in place of " |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2648 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2649 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2650 julong cms_blocks_to_claim = (julong)atol(tail); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2651 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2652 jio_fprintf(defaultStream::error_stream(), |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2653 "Please use -XX:OldPLABSize in place of " |
| 0 | 2654 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2655 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2656 julong old_plab_size = 0; |
| 0 | 2657 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
| 2658 if (errcode != arg_in_range) { | |
| 2659 jio_fprintf(defaultStream::error_stream(), | |
| 2660 "Invalid old PLAB size: %s\n", option->optionString); | |
| 2661 describe_range_error(errcode); | |
| 2662 return JNI_EINVAL; | |
| 2663 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2664 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
| 0 | 2665 jio_fprintf(defaultStream::error_stream(), |
| 2666 "Please use -XX:OldPLABSize in place of " | |
| 2667 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2668 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2669 julong young_plab_size = 0; |
| 0 | 2670 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
| 2671 if (errcode != arg_in_range) { | |
| 2672 jio_fprintf(defaultStream::error_stream(), | |
| 2673 "Invalid young PLAB size: %s\n", option->optionString); | |
| 2674 describe_range_error(errcode); | |
| 2675 return JNI_EINVAL; | |
| 2676 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2677 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
| 0 | 2678 jio_fprintf(defaultStream::error_stream(), |
| 2679 "Please use -XX:YoungPLABSize in place of " | |
| 2680 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
| 1284 | 2681 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
| 2682 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
| 2683 julong stack_size = 0; | |
| 2684 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
| 2685 if (errcode != arg_in_range) { | |
| 2686 jio_fprintf(defaultStream::error_stream(), | |
| 2687 "Invalid mark stack size: %s\n", option->optionString); | |
| 2688 describe_range_error(errcode); | |
| 2689 return JNI_EINVAL; | |
| 2690 } | |
| 2691 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
| 2692 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
| 2693 julong max_stack_size = 0; | |
| 2694 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
| 2695 if (errcode != arg_in_range) { | |
| 2696 jio_fprintf(defaultStream::error_stream(), | |
| 2697 "Invalid maximum mark stack size: %s\n", | |
| 2698 option->optionString); | |
| 2699 describe_range_error(errcode); | |
| 2700 return JNI_EINVAL; | |
| 2701 } | |
| 2702 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
| 2703 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
| 2704 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
| 2705 uintx conc_threads = 0; | |
| 2706 if (!parse_uintx(tail, &conc_threads, 1)) { | |
| 2707 jio_fprintf(defaultStream::error_stream(), | |
| 2708 "Invalid concurrent threads: %s\n", option->optionString); | |
| 2709 return JNI_EINVAL; | |
| 2710 } | |
| 2711 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
|
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2712 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2713 julong max_direct_memory_size = 0; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2714 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2715 if (errcode != arg_in_range) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2716 jio_fprintf(defaultStream::error_stream(), |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2717 "Invalid maximum direct memory size: %s\n", |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2718 option->optionString); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2719 describe_range_error(errcode); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2720 return JNI_EINVAL; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2721 } |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2722 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2723 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 0 | 2724 // Skip -XX:Flags= since that case has already been handled |
| 2725 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
| 2726 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
| 2727 return JNI_EINVAL; | |
| 2728 } | |
| 2729 } | |
| 2730 // Unknown option | |
| 2731 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
| 2732 return JNI_ERR; | |
| 2733 } | |
| 2734 } | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2735 |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2736 // 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
|
2737 // when working with older JDKs. |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2738 if (JDK_Version::current().compare_major(6) <= 0 && |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2739 FLAG_IS_DEFAULT(UseVMInterruptibleIO)) { |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2740 FLAG_SET_DEFAULT(UseVMInterruptibleIO, true); |
|
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2741 } |
|
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2742 #ifdef LINUX |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2743 if (JDK_Version::current().compare_major(6) <= 0 && |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2744 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2745 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2746 } |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2747 #endif // LINUX |
| 0 | 2748 return JNI_OK; |
| 2749 } | |
| 2750 | |
| 2751 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
| 2752 // This must be done after all -D arguments have been processed. | |
| 2753 scp_p->expand_endorsed(); | |
| 2754 | |
| 2755 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
| 2756 // Assemble the bootclasspath elements into the final path. | |
| 2757 Arguments::set_sysclasspath(scp_p->combined_path()); | |
| 2758 } | |
| 2759 | |
| 2760 // This must be done after all arguments have been processed. | |
| 2761 // java_compiler() true means set to "NONE" or empty. | |
| 2762 if (java_compiler() && !xdebug_mode()) { | |
| 2763 // For backwards compatibility, we switch to interpreted mode if | |
| 2764 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
| 2765 // not specified. | |
| 2766 set_mode_flags(_int); | |
| 2767 } | |
| 2768 if (CompileThreshold == 0) { | |
| 2769 set_mode_flags(_int); | |
| 2770 } | |
| 2771 | |
| 2772 #ifndef COMPILER2 | |
| 2773 // Don't degrade server performance for footprint | |
| 2774 if (FLAG_IS_DEFAULT(UseLargePages) && | |
| 2775 MaxHeapSize < LargePageHeapSizeThreshold) { | |
| 2776 // No need for large granularity pages w/small heaps. | |
| 2777 // Note that large pages are enabled/disabled for both the | |
| 2778 // Java heap and the code cache. | |
| 2779 FLAG_SET_DEFAULT(UseLargePages, false); | |
| 2780 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
| 2781 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
| 2782 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2783 |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2784 // Tiered compilation is undefined with C1. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2785 TieredCompilation = false; |
| 0 | 2786 #else |
| 2787 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
| 2788 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
| 2789 } | |
| 2790 #endif | |
| 2791 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2792 // 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
|
2793 // to be true unless the property has already been set. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2794 // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2795 if (os::is_headless_jre()) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2796 const char* headless = Arguments::get_property("java.awt.headless"); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2797 if (headless == NULL) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2798 char envbuffer[128]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2799 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2800 if (!add_property("java.awt.headless=true")) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2801 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2802 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2803 } else { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2804 char buffer[256]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2805 strcpy(buffer, "java.awt.headless="); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2806 strcat(buffer, envbuffer); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2807 if (!add_property(buffer)) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2808 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2809 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2810 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2811 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2812 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2813 |
| 0 | 2814 if (!check_vm_args_consistency()) { |
| 2815 return JNI_ERR; | |
| 2816 } | |
| 2817 | |
| 2818 return JNI_OK; | |
| 2819 } | |
| 2820 | |
| 2821 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2822 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
| 2823 scp_assembly_required_p); | |
| 2824 } | |
| 2825 | |
| 2826 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2827 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
| 2828 scp_assembly_required_p); | |
| 2829 } | |
| 2830 | |
| 2831 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2832 const int N_MAX_OPTIONS = 64; | |
| 2833 const int OPTION_BUFFER_SIZE = 1024; | |
| 2834 char buffer[OPTION_BUFFER_SIZE]; | |
| 2835 | |
| 2836 // The variable will be ignored if it exceeds the length of the buffer. | |
| 2837 // Don't check this variable if user has special privileges | |
| 2838 // (e.g. unix su command). | |
| 2839 if (os::getenv(name, buffer, sizeof(buffer)) && | |
| 2840 !os::have_special_privileges()) { | |
| 2841 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
| 2842 jio_fprintf(defaultStream::error_stream(), | |
| 2843 "Picked up %s: %s\n", name, buffer); | |
| 2844 char* rd = buffer; // pointer to the input string (rd) | |
| 2845 int i; | |
| 2846 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
| 2847 while (isspace(*rd)) rd++; // skip whitespace | |
| 2848 if (*rd == 0) break; // we re done when the input string is read completely | |
| 2849 | |
| 2850 // The output, option string, overwrites the input string. | |
| 2851 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
| 2852 // input string (rd). | |
| 2853 char* wrt = rd; | |
| 2854 | |
| 2855 options[i++].optionString = wrt; // Fill in option | |
| 2856 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
| 2857 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
| 2858 int quote = *rd; // matching quote to look for | |
| 2859 rd++; // don't copy open quote | |
| 2860 while (*rd != quote) { // include everything (even spaces) up until quote | |
| 2861 if (*rd == 0) { // string termination means unmatched string | |
| 2862 jio_fprintf(defaultStream::error_stream(), | |
| 2863 "Unmatched quote in %s\n", name); | |
| 2864 return JNI_ERR; | |
| 2865 } | |
| 2866 *wrt++ = *rd++; // copy to option string | |
| 2867 } | |
| 2868 rd++; // don't copy close quote | |
| 2869 } else { | |
| 2870 *wrt++ = *rd++; // copy to option string | |
| 2871 } | |
| 2872 } | |
| 2873 // Need to check if we're done before writing a NULL, | |
| 2874 // because the write could be to the byte that rd is pointing to. | |
| 2875 if (*rd++ == 0) { | |
| 2876 *wrt = 0; | |
| 2877 break; | |
| 2878 } | |
| 2879 *wrt = 0; // Zero terminate option | |
| 2880 } | |
| 2881 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
| 2882 JavaVMInitArgs vm_args; | |
| 2883 vm_args.version = JNI_VERSION_1_2; | |
| 2884 vm_args.options = options; | |
| 2885 vm_args.nOptions = i; | |
| 564 | 2886 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 0 | 2887 |
| 2888 if (PrintVMOptions) { | |
| 2889 const char* tail; | |
| 2890 for (int i = 0; i < vm_args.nOptions; i++) { | |
| 2891 const JavaVMOption *option = vm_args.options + i; | |
| 2892 if (match_option(option, "-XX:", &tail)) { | |
| 2893 logOption(tail); | |
| 2894 } | |
| 2895 } | |
| 2896 } | |
| 2897 | |
| 2898 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
| 2899 } | |
| 2900 return JNI_OK; | |
| 2901 } | |
| 2902 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2903 void Arguments::set_shared_spaces_flags() { |
| 2378 | 2904 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
| 2905 const bool might_share = must_share || UseSharedSpaces; | |
| 2906 | |
| 2907 // The string table is part of the shared archive so the size must match. | |
| 2908 if (!FLAG_IS_DEFAULT(StringTableSize)) { | |
| 2909 // Disable sharing. | |
| 2910 if (must_share) { | |
| 2911 warning("disabling shared archive %s because of non-default " | |
| 2912 "StringTableSize", DumpSharedSpaces ? "creation" : "use"); | |
| 2913 } | |
| 2914 if (might_share) { | |
| 2915 FLAG_SET_DEFAULT(DumpSharedSpaces, false); | |
| 2916 FLAG_SET_DEFAULT(RequireSharedSpaces, false); | |
| 2917 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 2918 } | |
| 2919 return; | |
| 2920 } | |
| 2921 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2922 // Check whether class data sharing settings conflict with GC, compressed oops |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2923 // or page size, and fix them up. Explicit sharing options override other |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2924 // settings. |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2925 const bool cannot_share = UseConcMarkSweepGC || CMSIncrementalMode || |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2926 UseG1GC || UseParNewGC || UseParallelGC || UseParallelOldGC || |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2927 UseCompressedOops || UseLargePages && FLAG_IS_CMDLINE(UseLargePages); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2928 if (cannot_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2929 if (must_share) { |
| 2378 | 2930 warning("selecting serial gc and disabling large pages %s" |
| 2931 "because of %s", "" LP64_ONLY("and compressed oops "), | |
| 2932 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
| 2933 force_serial_gc(); | |
| 2934 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
| 2935 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2936 } else { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2937 if (UseSharedSpaces && Verbose) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2938 warning("turning off use of shared archive because of " |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2939 "choice of garbage collector or large pages"); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2940 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2941 no_shared_spaces(); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2942 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2943 } else if (UseLargePages && might_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2944 // 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
|
2945 // there may not even be a shared archive to use. |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2946 FLAG_SET_DEFAULT(UseLargePages, false); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2947 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2948 } |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
2949 |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2950 // 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
|
2951 // were explicitly requested on the command-line |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2952 #define UNSUPPORTED_OPTION(opt, description) \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2953 do { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2954 if (opt) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2955 if (FLAG_IS_CMDLINE(opt)) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2956 warning(description " is disabled in this release."); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2957 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2958 FLAG_SET_DEFAULT(opt, false); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2959 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2960 } while(0) |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
2961 |
| 0 | 2962 // Parse entry point called from JNI_CreateJavaVM |
| 2963 | |
| 2964 jint Arguments::parse(const JavaVMInitArgs* args) { | |
| 2965 | |
| 2966 // Sharing support | |
| 2967 // Construct the path to the archive | |
| 2968 char jvm_path[JVM_MAXPATHLEN]; | |
| 2969 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
| 2970 char *end = strrchr(jvm_path, *os::file_separator()); | |
| 2971 if (end != NULL) *end = '\0'; | |
| 2972 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
| 6197 | 2973 strlen(os::file_separator()) + 20, mtInternal); |
| 0 | 2974 if (shared_archive_path == NULL) return JNI_ENOMEM; |
| 2975 strcpy(shared_archive_path, jvm_path); | |
| 2976 strcat(shared_archive_path, os::file_separator()); | |
| 2977 strcat(shared_archive_path, "classes"); | |
| 2978 DEBUG_ONLY(strcat(shared_archive_path, "_g");) | |
| 2979 strcat(shared_archive_path, ".jsa"); | |
| 2980 SharedArchivePath = shared_archive_path; | |
| 2981 | |
| 2982 // Remaining part of option string | |
| 2983 const char* tail; | |
| 2984 | |
| 2985 // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
2986 const char* hotspotrc = ".hotspotrc"; |
| 0 | 2987 bool settings_file_specified = false; |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
2988 bool needs_hotspotrc_warning = false; |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
2989 |
| 564 | 2990 const char* flags_file; |
| 0 | 2991 int index; |
| 2992 for (index = 0; index < args->nOptions; index++) { | |
| 2993 const JavaVMOption *option = args->options + index; | |
| 2994 if (match_option(option, "-XX:Flags=", &tail)) { | |
| 564 | 2995 flags_file = tail; |
| 0 | 2996 settings_file_specified = true; |
| 2997 } | |
| 2998 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
| 2999 PrintVMOptions = true; | |
| 3000 } | |
|
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3001 if (match_option(option, "-XX:-PrintVMOptions", &tail)) { |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3002 PrintVMOptions = false; |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3003 } |
| 564 | 3004 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
| 3005 IgnoreUnrecognizedVMOptions = true; | |
| 3006 } | |
| 3007 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
| 3008 IgnoreUnrecognizedVMOptions = false; | |
| 3009 } | |
| 1150 | 3010 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
| 4773 | 3011 CommandLineFlags::printFlags(tty, false); |
| 1150 | 3012 vm_exit(0); |
| 3013 } | |
| 6197 | 3014 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
| 3015 MemTracker::init_tracking_options(tail); | |
| 3016 } | |
| 3017 | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3018 |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3019 #ifndef PRODUCT |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3020 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
| 4773 | 3021 CommandLineFlags::printFlags(tty, true); |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3022 vm_exit(0); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3023 } |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3024 #endif |
| 564 | 3025 } |
| 3026 | |
| 3027 if (IgnoreUnrecognizedVMOptions) { | |
| 3028 // uncast const to modify the flag args->ignoreUnrecognized | |
| 3029 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
| 3030 } | |
| 3031 | |
| 3032 // Parse specified settings file | |
| 3033 if (settings_file_specified) { | |
| 3034 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
| 3035 return JNI_EINVAL; | |
| 3036 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3037 } else { |
|
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3038 #ifdef ASSERT |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3039 // Parse default .hotspotrc settings file |
| 0 | 3040 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
| 3041 return JNI_EINVAL; | |
| 3042 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3043 #else |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3044 struct stat buf; |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3045 if (os::stat(hotspotrc, &buf) == 0) { |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3046 needs_hotspotrc_warning = true; |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3047 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3048 #endif |
| 0 | 3049 } |
| 3050 | |
| 3051 if (PrintVMOptions) { | |
| 3052 for (index = 0; index < args->nOptions; index++) { | |
| 3053 const JavaVMOption *option = args->options + index; | |
| 3054 if (match_option(option, "-XX:", &tail)) { | |
| 3055 logOption(tail); | |
| 3056 } | |
| 3057 } | |
| 3058 } | |
| 3059 | |
| 3060 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
| 3061 jint result = parse_vm_init_args(args); | |
| 3062 if (result != JNI_OK) { | |
| 3063 return result; | |
| 3064 } | |
| 3065 | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3066 // Delay warning until here so that we've had a chance to process |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3067 // the -XX:-PrintWarnings flag |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3068 if (needs_hotspotrc_warning) { |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3069 warning("%s file is present but has been ignored. " |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3070 "Run with -XX:Flags=%s to load the file.", |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3071 hotspotrc, hotspotrc); |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3072 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3073 |
|
6055
35e504cb49a6
7167625: Adjustments for SE-Embedded build process
collins
parents:
6017
diff
changeset
|
3074 #if (defined JAVASE_EMBEDDED || defined ARM) |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3075 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3076 #endif |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3077 |
| 0 | 3078 #ifndef PRODUCT |
| 3079 if (TraceBytecodesAt != 0) { | |
| 3080 TraceBytecodes = true; | |
| 3081 } | |
| 3082 if (CountCompiledCalls) { | |
| 3083 if (UseCounterDecay) { | |
| 3084 warning("UseCounterDecay disabled because CountCalls is set"); | |
| 3085 UseCounterDecay = false; | |
| 3086 } | |
| 3087 } | |
| 3088 #endif // PRODUCT | |
| 3089 | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3090 // 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
|
3091 if (!JDK_Version::is_gte_jdk17x_version()) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3092 if (EnableInvokeDynamic) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3093 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3094 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
|
3095 } |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3096 EnableInvokeDynamic = false; |
| 710 | 3097 } |
| 3098 } | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3099 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3100 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3101 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3102 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
|
3103 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3104 ScavengeRootsInCode = 1; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3105 } |
|
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3106 if (!JavaObjectsInPerm && ScavengeRootsInCode == 0) { |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3107 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3108 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
|
3109 } |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3110 ScavengeRootsInCode = 1; |
|
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3111 } |
| 710 | 3112 |
| 0 | 3113 if (PrintGCDetails) { |
| 3114 // Turn on -verbose:gc options as well | |
| 3115 PrintGC = true; | |
| 3116 } | |
| 3117 | |
|
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3118 if (!JDK_Version::is_gte_jdk18x_version()) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3119 // To avoid changing the log format for 7 updates this flag is only |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3120 // true by default in JDK8 and above. |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3121 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3122 FLAG_SET_DEFAULT(PrintGCCause, false); |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3123 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3124 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3125 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3126 // 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
|
3127 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
|
3128 |
| 0 | 3129 #ifdef SERIALGC |
| 1064 | 3130 force_serial_gc(); |
| 0 | 3131 #endif // SERIALGC |
| 3132 #ifdef KERNEL | |
| 3133 no_shared_spaces(); | |
| 3134 #endif // KERNEL | |
| 3135 | |
| 3136 // Set flags based on ergonomics. | |
| 3137 set_ergonomics_flags(); | |
| 3138 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3139 set_shared_spaces_flags(); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3140 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3141 // Check the GC selections again. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3142 if (!check_gc_consistency()) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3143 return JNI_EINVAL; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3144 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3145 |
| 1783 | 3146 if (TieredCompilation) { |
| 3147 set_tiered_flags(); | |
| 3148 } else { | |
| 3149 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
| 3150 if (CompilationPolicyChoice >= 2) { | |
| 3151 vm_exit_during_initialization( | |
| 3152 "Incompatible compilation policy selected", NULL); | |
| 3153 } | |
| 3154 } | |
| 3155 | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3156 #ifndef KERNEL |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3157 // Set heap size based on available physical memory |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3158 set_heap_size(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3159 // Set per-collector flags |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3160 if (UseParallelGC || UseParallelOldGC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3161 set_parallel_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3162 } 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
|
3163 set_cms_and_parnew_gc_flags(); |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3164 } 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
|
3165 set_parnew_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3166 } else if (UseG1GC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3167 set_g1_gc_flags(); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3168 } |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3169 #endif // KERNEL |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3170 |
| 0 | 3171 #ifdef SERIALGC |
| 3172 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
| 3173 #endif // SERIALGC | |
| 3174 | |
| 3175 // Set bytecode rewriting flags | |
| 3176 set_bytecode_flags(); | |
| 3177 | |
| 3178 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
| 3179 set_aggressive_opts_flags(); | |
| 3180 | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3181 // Turn off biased locking for locking debug mode flags, |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3182 // 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
|
3183 // biased locking. |
| 2331 | 3184 if (UseHeavyMonitors |
| 3185 #ifdef COMPILER1 | |
| 3186 || !UseFastLocking | |
| 3187 #endif // COMPILER1 | |
| 3188 ) { | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3189 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3190 // 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
|
3191 // can't enable biased locking here |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3192 warning("Biased Locking is not supported with locking debug flags" |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3193 "; ignoring UseBiasedLocking flag." ); |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3194 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3195 UseBiasedLocking = false; |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3196 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3197 |
| 0 | 3198 #ifdef CC_INTERP |
| 1131 | 3199 // Clear flags not supported by the C++ interpreter |
| 3200 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
| 0 | 3201 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
| 1131 | 3202 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
| 3203 #endif // CC_INTERP | |
| 3204 | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3205 #ifdef COMPILER2 |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3206 if (!UseBiasedLocking || EmitSync != 0) { |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3207 UseOptoBiasInlining = false; |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3208 } |
| 4777 | 3209 if (!EliminateLocks) { |
| 3210 EliminateNestedLocks = false; | |
| 3211 } | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3212 #endif |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3213 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3214 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3215 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
|
3216 DebugNonSafepoints = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3217 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3218 |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3219 #ifndef PRODUCT |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3220 if (CompileTheWorld) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3221 // 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
|
3222 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3223 NmethodSweepFraction = 1; |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3224 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3225 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3226 #endif |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3227 |
| 0 | 3228 if (PrintCommandLineFlags) { |
| 4773 | 3229 CommandLineFlags::printSetFlags(tty); |
| 0 | 3230 } |
| 3231 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3232 // Apply CPU specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3233 if (UseBiasedLocking) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3234 if (!VM_Version::use_biased_locking() && |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3235 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3236 UseBiasedLocking = false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3237 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3238 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3239 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3240 // 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
|
3241 // 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
|
3242 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
|
3243 bool set = false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3244 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3245 if (!set) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3246 FLAG_SET_DEFAULT(PauseAtExit, true); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3247 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3248 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3249 |
| 0 | 3250 return JNI_OK; |
| 3251 } | |
| 3252 | |
| 3253 int Arguments::PropertyList_count(SystemProperty* pl) { | |
| 3254 int count = 0; | |
| 3255 while(pl != NULL) { | |
| 3256 count++; | |
| 3257 pl = pl->next(); | |
| 3258 } | |
| 3259 return count; | |
| 3260 } | |
| 3261 | |
| 3262 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
| 3263 assert(key != NULL, "just checking"); | |
| 3264 SystemProperty* prop; | |
| 3265 for (prop = pl; prop != NULL; prop = prop->next()) { | |
| 3266 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
| 3267 } | |
| 3268 return NULL; | |
| 3269 } | |
| 3270 | |
| 3271 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
| 3272 int count = 0; | |
| 3273 const char* ret_val = NULL; | |
| 3274 | |
| 3275 while(pl != NULL) { | |
| 3276 if(count >= index) { | |
| 3277 ret_val = pl->key(); | |
| 3278 break; | |
| 3279 } | |
| 3280 count++; | |
| 3281 pl = pl->next(); | |
| 3282 } | |
| 3283 | |
| 3284 return ret_val; | |
| 3285 } | |
| 3286 | |
| 3287 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
| 3288 int count = 0; | |
| 3289 char* ret_val = NULL; | |
| 3290 | |
| 3291 while(pl != NULL) { | |
| 3292 if(count >= index) { | |
| 3293 ret_val = pl->value(); | |
| 3294 break; | |
| 3295 } | |
| 3296 count++; | |
| 3297 pl = pl->next(); | |
| 3298 } | |
| 3299 | |
| 3300 return ret_val; | |
| 3301 } | |
| 3302 | |
| 3303 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
| 3304 SystemProperty* p = *plist; | |
| 3305 if (p == NULL) { | |
| 3306 *plist = new_p; | |
| 3307 } else { | |
| 3308 while (p->next() != NULL) { | |
| 3309 p = p->next(); | |
| 3310 } | |
| 3311 p->set_next(new_p); | |
| 3312 } | |
| 3313 } | |
| 3314 | |
| 3315 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
| 3316 if (plist == NULL) | |
| 3317 return; | |
| 3318 | |
| 3319 SystemProperty* new_p = new SystemProperty(k, v, true); | |
| 3320 PropertyList_add(plist, new_p); | |
| 3321 } | |
| 3322 | |
| 3323 // This add maintains unique property key in the list. | |
| 691 | 3324 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
| 0 | 3325 if (plist == NULL) |
| 3326 return; | |
| 3327 | |
| 3328 // If property key exist then update with new value. | |
| 3329 SystemProperty* prop; | |
| 3330 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
| 3331 if (strcmp(k, prop->key()) == 0) { | |
| 691 | 3332 if (append) { |
| 3333 prop->append_value(v); | |
| 3334 } else { | |
| 3335 prop->set_value(v); | |
| 3336 } | |
| 0 | 3337 return; |
| 3338 } | |
| 3339 } | |
| 3340 | |
| 3341 PropertyList_add(plist, k, v); | |
| 3342 } | |
| 3343 | |
| 3344 #ifdef KERNEL | |
| 3345 char *Arguments::get_kernel_properties() { | |
| 3346 // Find properties starting with kernel and append them to string | |
| 3347 // We need to find out how long they are first because the URL's that they | |
| 3348 // might point to could get long. | |
| 3349 int length = 0; | |
| 3350 SystemProperty* prop; | |
| 3351 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3352 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3353 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
| 3354 } | |
| 3355 } | |
| 3356 // Add one for null terminator. | |
| 6197 | 3357 char *props = AllocateHeap(length + 1, mtInternal); |
| 0 | 3358 if (length != 0) { |
| 3359 int pos = 0; | |
| 3360 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3361 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3362 jio_snprintf(&props[pos], length-pos, | |
| 3363 "-D%s=%s ", prop->key(), prop->value()); | |
| 3364 pos = strlen(props); | |
| 3365 } | |
| 3366 } | |
| 3367 } | |
| 3368 // null terminate props in case of null | |
| 3369 props[length] = '\0'; | |
| 3370 return props; | |
| 3371 } | |
| 3372 #endif // KERNEL | |
| 3373 | |
| 3374 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
| 3375 // Returns true if all of the source pointed by src has been copied over to | |
| 3376 // the destination buffer pointed by buf. Otherwise, returns false. | |
| 3377 // Notes: | |
| 3378 // 1. If the length (buflen) of the destination buffer excluding the | |
| 3379 // NULL terminator character is not long enough for holding the expanded | |
| 3380 // pid characters, it also returns false instead of returning the partially | |
| 3381 // expanded one. | |
| 3382 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
| 3383 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
| 3384 char* buf, size_t buflen) { | |
| 3385 const char* p = src; | |
| 3386 char* b = buf; | |
| 3387 const char* src_end = &src[srclen]; | |
| 3388 char* buf_end = &buf[buflen - 1]; | |
| 3389 | |
| 3390 while (p < src_end && b < buf_end) { | |
| 3391 if (*p == '%') { | |
| 3392 switch (*(++p)) { | |
| 3393 case '%': // "%%" ==> "%" | |
| 3394 *b++ = *p++; | |
| 3395 break; | |
| 3396 case 'p': { // "%p" ==> current process id | |
| 3397 // buf_end points to the character before the last character so | |
| 3398 // that we could write '\0' to the end of the buffer. | |
| 3399 size_t buf_sz = buf_end - b + 1; | |
| 3400 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
| 3401 | |
| 3402 // if jio_snprintf fails or the buffer is not long enough to hold | |
| 3403 // the expanded pid, returns false. | |
| 3404 if (ret < 0 || ret >= (int)buf_sz) { | |
| 3405 return false; | |
| 3406 } else { | |
| 3407 b += ret; | |
| 3408 assert(*b == '\0', "fail in copy_expand_pid"); | |
| 3409 if (p == src_end && b == buf_end + 1) { | |
| 3410 // reach the end of the buffer. | |
| 3411 return true; | |
| 3412 } | |
| 3413 } | |
| 3414 p++; | |
| 3415 break; | |
| 3416 } | |
| 3417 default : | |
| 3418 *b++ = '%'; | |
| 3419 } | |
| 3420 } else { | |
| 3421 *b++ = *p++; | |
| 3422 } | |
| 3423 } | |
| 3424 *b = '\0'; | |
| 3425 return (p == src_end); // return false if not all of the source was copied | |
| 3426 } |