Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 6916:5ec0c42da025
7188234: Deprecate VM command line options
Summary: Remove support for the UseVectoredExceptions flag
Reviewed-by: jcoomes, kamg
Contributed-by: harold.seigel@oracle.com
| author | coleenp |
|---|---|
| date | Thu, 25 Oct 2012 16:33:15 -0400 |
| parents | 8ebcedb7604d |
| children | e81fbc04a942 |
| 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) }, |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
248 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
249 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
250 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
251 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
252 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
253 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
254 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
255 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
256 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
257 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
258 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
259 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
| 6916 | 260 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
261 #ifdef PRODUCT |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
262 { "DesiredMethodLimit", |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
263 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
|
264 #endif // PRODUCT |
| 242 | 265 { NULL, JDK_Version(0), JDK_Version(0) } |
| 266 }; | |
| 267 | |
| 268 // Returns true if the flag is obsolete and fits into the range specified | |
| 269 // for being ignored. In the case that the flag is ignored, the 'version' | |
| 270 // value is filled in with the version number when the flag became | |
| 271 // obsolete so that that value can be displayed to the user. | |
| 272 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
| 0 | 273 int i = 0; |
| 242 | 274 assert(version != NULL, "Must provide a version buffer"); |
| 275 while (obsolete_jvm_flags[i].name != NULL) { | |
| 276 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
| 0 | 277 // <flag>=xxx form |
| 278 // [-|+]<flag> form | |
| 242 | 279 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
| 0 | 280 ((s[0] == '+' || s[0] == '-') && |
| 242 | 281 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
| 282 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
| 283 *version = flag_status.obsoleted_in; | |
| 284 return true; | |
| 285 } | |
| 0 | 286 } |
| 287 i++; | |
| 288 } | |
| 289 return false; | |
| 290 } | |
| 291 | |
| 292 // Constructs the system class path (aka boot class path) from the following | |
| 293 // components, in order: | |
| 294 // | |
| 295 // prefix // from -Xbootclasspath/p:... | |
| 296 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
| 297 // base // from os::get_system_properties() or -Xbootclasspath= | |
| 298 // suffix // from -Xbootclasspath/a:... | |
| 299 // | |
| 300 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
| 301 // directories are added to the sysclasspath just before the base. | |
| 302 // | |
| 303 // This could be AllStatic, but it isn't needed after argument processing is | |
| 304 // complete. | |
| 305 class SysClassPath: public StackObj { | |
| 306 public: | |
| 307 SysClassPath(const char* base); | |
| 308 ~SysClassPath(); | |
| 309 | |
| 310 inline void set_base(const char* base); | |
| 311 inline void add_prefix(const char* prefix); | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
312 inline void add_suffix_to_prefix(const char* suffix); |
| 0 | 313 inline void add_suffix(const char* suffix); |
| 314 inline void reset_path(const char* base); | |
| 315 | |
| 316 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
| 317 // property. Must be called after all command-line arguments have been | |
| 318 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
| 319 // combined_path(). | |
| 320 void expand_endorsed(); | |
| 321 | |
| 322 inline const char* get_base() const { return _items[_scp_base]; } | |
| 323 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
| 324 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
| 325 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
| 326 | |
| 327 // Combine all the components into a single c-heap-allocated string; caller | |
| 328 // must free the string if/when no longer needed. | |
| 329 char* combined_path(); | |
| 330 | |
| 331 private: | |
| 332 // Utility routines. | |
| 333 static char* add_to_path(const char* path, const char* str, bool prepend); | |
| 334 static char* add_jars_to_path(char* path, const char* directory); | |
| 335 | |
| 336 inline void reset_item_at(int index); | |
| 337 | |
| 338 // Array indices for the items that make up the sysclasspath. All except the | |
| 339 // base are allocated in the C heap and freed by this class. | |
| 340 enum { | |
| 341 _scp_prefix, // from -Xbootclasspath/p:... | |
| 342 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
| 343 _scp_base, // the default sysclasspath | |
| 344 _scp_suffix, // from -Xbootclasspath/a:... | |
| 345 _scp_nitems // the number of items, must be last. | |
| 346 }; | |
| 347 | |
| 348 const char* _items[_scp_nitems]; | |
| 349 DEBUG_ONLY(bool _expansion_done;) | |
| 350 }; | |
| 351 | |
| 352 SysClassPath::SysClassPath(const char* base) { | |
| 353 memset(_items, 0, sizeof(_items)); | |
| 354 _items[_scp_base] = base; | |
| 355 DEBUG_ONLY(_expansion_done = false;) | |
| 356 } | |
| 357 | |
| 358 SysClassPath::~SysClassPath() { | |
| 359 // Free everything except the base. | |
| 360 for (int i = 0; i < _scp_nitems; ++i) { | |
| 361 if (i != _scp_base) reset_item_at(i); | |
| 362 } | |
| 363 DEBUG_ONLY(_expansion_done = false;) | |
| 364 } | |
| 365 | |
| 366 inline void SysClassPath::set_base(const char* base) { | |
| 367 _items[_scp_base] = base; | |
| 368 } | |
| 369 | |
| 370 inline void SysClassPath::add_prefix(const char* prefix) { | |
| 371 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
| 372 } | |
| 373 | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
374 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
|
375 _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
|
376 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
377 |
| 0 | 378 inline void SysClassPath::add_suffix(const char* suffix) { |
| 379 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
| 380 } | |
| 381 | |
| 382 inline void SysClassPath::reset_item_at(int index) { | |
| 383 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
| 384 if (_items[index] != NULL) { | |
| 6197 | 385 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
| 0 | 386 _items[index] = NULL; |
| 387 } | |
| 388 } | |
| 389 | |
| 390 inline void SysClassPath::reset_path(const char* base) { | |
| 391 // Clear the prefix and suffix. | |
| 392 reset_item_at(_scp_prefix); | |
| 393 reset_item_at(_scp_suffix); | |
| 394 set_base(base); | |
| 395 } | |
| 396 | |
| 397 //------------------------------------------------------------------------------ | |
| 398 | |
| 399 void SysClassPath::expand_endorsed() { | |
| 400 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
| 401 | |
| 402 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
| 403 if (path == NULL) { | |
| 404 path = Arguments::get_endorsed_dir(); | |
| 405 assert(path != NULL, "no default for java.endorsed.dirs"); | |
| 406 } | |
| 407 | |
| 408 char* expanded_path = NULL; | |
| 409 const char separator = *os::path_separator(); | |
| 410 const char* const end = path + strlen(path); | |
| 411 while (path < end) { | |
| 412 const char* tmp_end = strchr(path, separator); | |
| 413 if (tmp_end == NULL) { | |
| 414 expanded_path = add_jars_to_path(expanded_path, path); | |
| 415 path = end; | |
| 416 } else { | |
| 6197 | 417 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
| 0 | 418 memcpy(dirpath, path, tmp_end - path); |
| 419 dirpath[tmp_end - path] = '\0'; | |
| 420 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
| 6197 | 421 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
| 0 | 422 path = tmp_end + 1; |
| 423 } | |
| 424 } | |
| 425 _items[_scp_endorsed] = expanded_path; | |
| 426 DEBUG_ONLY(_expansion_done = true;) | |
| 427 } | |
| 428 | |
| 429 // Combine the bootclasspath elements, some of which may be null, into a single | |
| 430 // c-heap-allocated string. | |
| 431 char* SysClassPath::combined_path() { | |
| 432 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
| 433 assert(_expansion_done, "must call expand_endorsed() first."); | |
| 434 | |
| 435 size_t lengths[_scp_nitems]; | |
| 436 size_t total_len = 0; | |
| 437 | |
| 438 const char separator = *os::path_separator(); | |
| 439 | |
| 440 // Get the lengths. | |
| 441 int i; | |
| 442 for (i = 0; i < _scp_nitems; ++i) { | |
| 443 if (_items[i] != NULL) { | |
| 444 lengths[i] = strlen(_items[i]); | |
| 445 // Include space for the separator char (or a NULL for the last item). | |
| 446 total_len += lengths[i] + 1; | |
| 447 } | |
| 448 } | |
| 449 assert(total_len > 0, "empty sysclasspath not allowed"); | |
| 450 | |
| 451 // Copy the _items to a single string. | |
| 6197 | 452 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
| 0 | 453 char* cp_tmp = cp; |
| 454 for (i = 0; i < _scp_nitems; ++i) { | |
| 455 if (_items[i] != NULL) { | |
| 456 memcpy(cp_tmp, _items[i], lengths[i]); | |
| 457 cp_tmp += lengths[i]; | |
| 458 *cp_tmp++ = separator; | |
| 459 } | |
| 460 } | |
| 461 *--cp_tmp = '\0'; // Replace the extra separator. | |
| 462 return cp; | |
| 463 } | |
| 464 | |
| 465 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 466 char* | |
| 467 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
| 468 char *cp; | |
| 469 | |
| 470 assert(str != NULL, "just checking"); | |
| 471 if (path == NULL) { | |
| 472 size_t len = strlen(str) + 1; | |
| 6197 | 473 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 474 memcpy(cp, str, len); // copy the trailing null |
| 475 } else { | |
| 476 const char separator = *os::path_separator(); | |
| 477 size_t old_len = strlen(path); | |
| 478 size_t str_len = strlen(str); | |
| 479 size_t len = old_len + str_len + 2; | |
| 480 | |
| 481 if (prepend) { | |
| 6197 | 482 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
| 0 | 483 char* cp_tmp = cp; |
| 484 memcpy(cp_tmp, str, str_len); | |
| 485 cp_tmp += str_len; | |
| 486 *cp_tmp = separator; | |
| 487 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
| 6197 | 488 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
| 0 | 489 } else { |
| 6197 | 490 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
| 0 | 491 char* cp_tmp = cp + old_len; |
| 492 *cp_tmp = separator; | |
| 493 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
| 494 } | |
| 495 } | |
| 496 return cp; | |
| 497 } | |
| 498 | |
| 499 // Scan the directory and append any jar or zip files found to path. | |
| 500 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
| 501 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
| 502 DIR* dir = os::opendir(directory); | |
| 503 if (dir == NULL) return path; | |
| 504 | |
| 505 char dir_sep[2] = { '\0', '\0' }; | |
| 506 size_t directory_len = strlen(directory); | |
| 507 const char fileSep = *os::file_separator(); | |
| 508 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
| 509 | |
| 510 /* Scan the directory for jars/zips, appending them to path. */ | |
| 511 struct dirent *entry; | |
| 6197 | 512 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
| 0 | 513 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
| 514 const char* name = entry->d_name; | |
| 515 const char* ext = name + strlen(name) - 4; | |
| 516 bool isJarOrZip = ext > name && | |
| 517 (os::file_name_strcmp(ext, ".jar") == 0 || | |
| 518 os::file_name_strcmp(ext, ".zip") == 0); | |
| 519 if (isJarOrZip) { | |
| 6197 | 520 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
| 0 | 521 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
| 522 path = add_to_path(path, jarpath, false); | |
| 6197 | 523 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
| 0 | 524 } |
| 525 } | |
| 6197 | 526 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
| 0 | 527 os::closedir(dir); |
| 528 return path; | |
| 529 } | |
| 530 | |
| 531 // Parses a memory size specification string. | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
532 static bool atomull(const char *s, julong* result) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
533 julong n = 0; |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
534 int args_read = sscanf(s, os::julong_format_specifier(), &n); |
| 0 | 535 if (args_read != 1) { |
| 536 return false; | |
| 537 } | |
| 538 while (*s != '\0' && isdigit(*s)) { | |
| 539 s++; | |
| 540 } | |
| 541 // 4705540: illegal if more characters are found after the first non-digit | |
| 542 if (strlen(s) > 1) { | |
| 543 return false; | |
| 544 } | |
| 545 switch (*s) { | |
| 546 case 'T': case 't': | |
| 547 *result = n * G * K; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
548 // Check for overflow. |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
549 if (*result/((julong)G * K) != n) return false; |
| 0 | 550 return true; |
| 551 case 'G': case 'g': | |
| 552 *result = n * G; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
553 if (*result/G != n) return false; |
| 0 | 554 return true; |
| 555 case 'M': case 'm': | |
| 556 *result = n * M; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
557 if (*result/M != n) return false; |
| 0 | 558 return true; |
| 559 case 'K': case 'k': | |
| 560 *result = n * K; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
561 if (*result/K != n) return false; |
| 0 | 562 return true; |
| 563 case '\0': | |
| 564 *result = n; | |
| 565 return true; | |
| 566 default: | |
| 567 return false; | |
| 568 } | |
| 569 } | |
| 570 | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
571 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
| 0 | 572 if (size < min_size) return arg_too_small; |
| 573 // 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
|
574 if (size > max_uintx) return arg_too_big; |
| 0 | 575 return arg_in_range; |
| 576 } | |
| 577 | |
| 578 // Describe an argument out of range error | |
| 579 void Arguments::describe_range_error(ArgsRange errcode) { | |
| 580 switch(errcode) { | |
| 581 case arg_too_big: | |
| 582 jio_fprintf(defaultStream::error_stream(), | |
| 583 "The specified size exceeds the maximum " | |
| 584 "representable size.\n"); | |
| 585 break; | |
| 586 case arg_too_small: | |
| 587 case arg_unreadable: | |
| 588 case arg_in_range: | |
| 589 // do nothing for now | |
| 590 break; | |
| 591 default: | |
| 592 ShouldNotReachHere(); | |
| 593 } | |
| 594 } | |
| 595 | |
| 596 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
| 597 return CommandLineFlags::boolAtPut(name, &value, origin); | |
| 598 } | |
| 599 | |
| 600 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
| 601 double v; | |
| 602 if (sscanf(value, "%lf", &v) != 1) { | |
| 603 return false; | |
| 604 } | |
| 605 | |
| 606 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
| 607 return true; | |
| 608 } | |
| 609 return false; | |
| 610 } | |
| 611 | |
| 612 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
|
613 julong v; |
| 0 | 614 intx intx_v; |
| 615 bool is_neg = false; | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
616 // Check the sign first since atomull() parses only unsigned values. |
| 0 | 617 if (*value == '-') { |
| 618 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
| 619 return false; | |
| 620 } | |
| 621 value++; | |
| 622 is_neg = true; | |
| 623 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
624 if (!atomull(value, &v)) { |
| 0 | 625 return false; |
| 626 } | |
| 627 intx_v = (intx) v; | |
| 628 if (is_neg) { | |
| 629 intx_v = -intx_v; | |
| 630 } | |
| 631 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
| 632 return true; | |
| 633 } | |
| 634 uintx uintx_v = (uintx) v; | |
| 635 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
| 636 return true; | |
| 637 } | |
| 1064 | 638 uint64_t uint64_t_v = (uint64_t) v; |
| 639 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
| 640 return true; | |
| 641 } | |
| 0 | 642 return false; |
| 643 } | |
| 644 | |
| 645 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
| 646 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
| 647 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 648 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 649 return true; |
| 650 } | |
| 651 | |
| 652 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
| 653 const char* old_value = ""; | |
| 654 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
| 655 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
| 656 size_t new_len = strlen(new_value); | |
| 657 const char* value; | |
| 658 char* free_this_too = NULL; | |
| 659 if (old_len == 0) { | |
| 660 value = new_value; | |
| 661 } else if (new_len == 0) { | |
| 662 value = old_value; | |
| 663 } else { | |
| 6197 | 664 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
| 0 | 665 // each new setting adds another LINE to the switch: |
| 666 sprintf(buf, "%s\n%s", old_value, new_value); | |
| 667 value = buf; | |
| 668 free_this_too = buf; | |
| 669 } | |
| 670 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
| 671 // CommandLineFlags always returns a pointer that needs freeing. | |
| 6197 | 672 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
| 0 | 673 if (free_this_too != NULL) { |
| 674 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
| 6197 | 675 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
| 0 | 676 } |
| 677 return true; | |
| 678 } | |
| 679 | |
| 680 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
| 681 | |
| 682 // range of acceptable characters spelled out for portability reasons | |
| 683 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
| 684 #define BUFLEN 255 | |
| 685 char name[BUFLEN+1]; | |
| 686 char dummy; | |
| 687 | |
| 688 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 689 return set_bool_flag(name, false, origin); | |
| 690 } | |
| 691 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
| 692 return set_bool_flag(name, true, origin); | |
| 693 } | |
| 694 | |
| 695 char punct; | |
| 696 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
| 697 const char* value = strchr(arg, '=') + 1; | |
| 698 Flag* flag = Flag::find_flag(name, strlen(name)); | |
| 699 if (flag != NULL && flag->is_ccstr()) { | |
| 700 if (flag->ccstr_accumulates()) { | |
| 701 return append_to_string_flag(name, value, origin); | |
| 702 } else { | |
| 703 if (value[0] == '\0') { | |
| 704 value = NULL; | |
| 705 } | |
| 706 return set_string_flag(name, value, origin); | |
| 707 } | |
| 708 } | |
| 709 } | |
| 710 | |
| 711 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
| 712 const char* value = strchr(arg, '=') + 1; | |
| 713 // -XX:Foo:=xxx will reset the string flag to the given value. | |
| 714 if (value[0] == '\0') { | |
| 715 value = NULL; | |
| 716 } | |
| 717 return set_string_flag(name, value, origin); | |
| 718 } | |
| 719 | |
| 720 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
| 721 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
| 722 #define NUMBER_RANGE "[0123456789]" | |
| 723 char value[BUFLEN + 1]; | |
| 724 char value2[BUFLEN + 1]; | |
| 725 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
| 726 // Looks like a floating-point number -- try again with more lenient format string | |
| 727 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
| 728 return set_fp_numeric_flag(name, value, origin); | |
| 729 } | |
| 730 } | |
| 731 | |
| 732 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
| 733 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
| 734 return set_numeric_flag(name, value, origin); | |
| 735 } | |
| 736 | |
| 737 return false; | |
| 738 } | |
| 739 | |
| 740 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
| 741 assert(bldarray != NULL, "illegal argument"); | |
| 742 | |
| 743 if (arg == NULL) { | |
| 744 return; | |
| 745 } | |
| 746 | |
| 747 int index = *count; | |
| 748 | |
| 749 // expand the array and add arg to the last element | |
| 750 (*count)++; | |
| 751 if (*bldarray == NULL) { | |
| 6197 | 752 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
| 0 | 753 } else { |
| 6197 | 754 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
| 0 | 755 } |
| 756 (*bldarray)[index] = strdup(arg); | |
| 757 } | |
| 758 | |
| 759 void Arguments::build_jvm_args(const char* arg) { | |
| 760 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
| 761 } | |
| 762 | |
| 763 void Arguments::build_jvm_flags(const char* arg) { | |
| 764 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
| 765 } | |
| 766 | |
| 767 // utility function to return a string that concatenates all | |
| 768 // strings in a given char** array | |
| 769 const char* Arguments::build_resource_string(char** args, int count) { | |
| 770 if (args == NULL || count == 0) { | |
| 771 return NULL; | |
| 772 } | |
| 773 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
| 774 for (int i = 1; i < count; i++) { | |
| 775 length += strlen(args[i]) + 1; // add 1 for a space | |
| 776 } | |
| 777 char* s = NEW_RESOURCE_ARRAY(char, length); | |
| 778 strcpy(s, args[0]); | |
| 779 for (int j = 1; j < count; j++) { | |
| 780 strcat(s, " "); | |
| 781 strcat(s, args[j]); | |
| 782 } | |
| 783 return (const char*) s; | |
| 784 } | |
| 785 | |
| 786 void Arguments::print_on(outputStream* st) { | |
| 787 st->print_cr("VM Arguments:"); | |
| 788 if (num_jvm_flags() > 0) { | |
| 789 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
| 790 } | |
| 791 if (num_jvm_args() > 0) { | |
| 792 st->print("jvm_args: "); print_jvm_args_on(st); | |
| 793 } | |
| 794 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
|
6879
8ebcedb7604d
7053130: hs_err file does not record specified CLASSPATH
coleenp
parents:
6878
diff
changeset
|
795 if (_java_class_path != NULL) { |
|
8ebcedb7604d
7053130: hs_err file does not record specified CLASSPATH
coleenp
parents:
6878
diff
changeset
|
796 char* path = _java_class_path->value(); |
|
8ebcedb7604d
7053130: hs_err file does not record specified CLASSPATH
coleenp
parents:
6878
diff
changeset
|
797 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
|
8ebcedb7604d
7053130: hs_err file does not record specified CLASSPATH
coleenp
parents:
6878
diff
changeset
|
798 } |
| 0 | 799 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
| 800 } | |
| 801 | |
| 802 void Arguments::print_jvm_flags_on(outputStream* st) { | |
| 803 if (_num_jvm_flags > 0) { | |
| 804 for (int i=0; i < _num_jvm_flags; i++) { | |
| 805 st->print("%s ", _jvm_flags_array[i]); | |
| 806 } | |
| 807 st->print_cr(""); | |
| 808 } | |
| 809 } | |
| 810 | |
| 811 void Arguments::print_jvm_args_on(outputStream* st) { | |
| 812 if (_num_jvm_args > 0) { | |
| 813 for (int i=0; i < _num_jvm_args; i++) { | |
| 814 st->print("%s ", _jvm_args_array[i]); | |
| 815 } | |
| 816 st->print_cr(""); | |
| 817 } | |
| 818 } | |
| 819 | |
| 242 | 820 bool Arguments::process_argument(const char* arg, |
| 821 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
| 822 | |
| 823 JDK_Version since = JDK_Version(); | |
| 0 | 824 |
| 3250 | 825 if (parse_argument(arg, origin) || ignore_unrecognized) { |
| 826 return true; | |
| 0 | 827 } |
| 3250 | 828 |
| 829 const char * const argname = *arg == '+' || *arg == '-' ? arg + 1 : arg; | |
| 830 if (is_newly_obsolete(arg, &since)) { | |
| 831 char version[256]; | |
| 832 since.to_string(version, sizeof(version)); | |
| 833 warning("ignoring option %s; support was removed in %s", argname, version); | |
| 834 return true; | |
| 835 } | |
| 836 | |
|
5947
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
837 // 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
|
838 // Otherwise, report the standard unrecognized VM option. |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
839 |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
840 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
|
841 if (locked_flag != NULL) { |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
842 char locked_message_buf[BUFLEN]; |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
843 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
|
844 if (strlen(locked_message_buf) == 0) { |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
845 jio_fprintf(defaultStream::error_stream(), |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
846 "Unrecognized VM option '%s'\n", argname); |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
847 } else { |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
848 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
|
849 } |
| 6017 | 850 } else { |
| 851 jio_fprintf(defaultStream::error_stream(), | |
| 852 "Unrecognized VM option '%s'\n", argname); | |
|
5947
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
853 } |
|
80fe40862b02
7144328: Improper commandlines for -XX:+-UnlockCommercialFeatures require proper warning/error messages
jmelvin
parents:
5915
diff
changeset
|
854 |
| 3250 | 855 // allow for commandline "commenting out" options like -XX:#+Verbose |
| 856 return arg[0] == '#'; | |
| 0 | 857 } |
| 858 | |
| 859 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
| 860 FILE* stream = fopen(file_name, "rb"); | |
| 861 if (stream == NULL) { | |
| 862 if (should_exist) { | |
| 863 jio_fprintf(defaultStream::error_stream(), | |
| 864 "Could not open settings file %s\n", file_name); | |
| 865 return false; | |
| 866 } else { | |
| 867 return true; | |
| 868 } | |
| 869 } | |
| 870 | |
| 871 char token[1024]; | |
| 872 int pos = 0; | |
| 873 | |
| 874 bool in_white_space = true; | |
| 875 bool in_comment = false; | |
| 876 bool in_quote = false; | |
| 877 char quote_c = 0; | |
| 878 bool result = true; | |
| 879 | |
| 880 int c = getc(stream); | |
| 881 while(c != EOF) { | |
| 882 if (in_white_space) { | |
| 883 if (in_comment) { | |
| 884 if (c == '\n') in_comment = false; | |
| 885 } else { | |
| 886 if (c == '#') in_comment = true; | |
| 887 else if (!isspace(c)) { | |
| 888 in_white_space = false; | |
| 889 token[pos++] = c; | |
| 890 } | |
| 891 } | |
| 892 } else { | |
| 893 if (c == '\n' || (!in_quote && isspace(c))) { | |
| 894 // token ends at newline, or at unquoted whitespace | |
| 895 // this allows a way to include spaces in string-valued options | |
| 896 token[pos] = '\0'; | |
| 897 logOption(token); | |
| 898 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 899 build_jvm_flags(token); | |
| 900 pos = 0; | |
| 901 in_white_space = true; | |
| 902 in_quote = false; | |
| 903 } else if (!in_quote && (c == '\'' || c == '"')) { | |
| 904 in_quote = true; | |
| 905 quote_c = c; | |
| 906 } else if (in_quote && (c == quote_c)) { | |
| 907 in_quote = false; | |
| 908 } else { | |
| 909 token[pos++] = c; | |
| 910 } | |
| 911 } | |
| 912 c = getc(stream); | |
| 913 } | |
| 914 if (pos > 0) { | |
| 915 token[pos] = '\0'; | |
| 916 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
| 917 build_jvm_flags(token); | |
| 918 } | |
| 919 fclose(stream); | |
| 920 return result; | |
| 921 } | |
| 922 | |
| 923 //============================================================================================================= | |
| 924 // Parsing of properties (-D) | |
| 925 | |
| 926 const char* Arguments::get_property(const char* key) { | |
| 927 return PropertyList_get_value(system_properties(), key); | |
| 928 } | |
| 929 | |
| 930 bool Arguments::add_property(const char* prop) { | |
| 931 const char* eq = strchr(prop, '='); | |
| 932 char* key; | |
| 933 // ns must be static--its address may be stored in a SystemProperty object. | |
| 934 const static char ns[1] = {0}; | |
| 935 char* value = (char *)ns; | |
| 936 | |
| 937 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
| 6197 | 938 key = AllocateHeap(key_len + 1, mtInternal); |
| 0 | 939 strncpy(key, prop, key_len); |
| 940 key[key_len] = '\0'; | |
| 941 | |
| 942 if (eq != NULL) { | |
| 943 size_t value_len = strlen(prop) - key_len - 1; | |
| 6197 | 944 value = AllocateHeap(value_len + 1, mtInternal); |
| 0 | 945 strncpy(value, &prop[key_len + 1], value_len + 1); |
| 946 } | |
| 947 | |
| 948 if (strcmp(key, "java.compiler") == 0) { | |
| 949 process_java_compiler_argument(value); | |
| 950 FreeHeap(key); | |
| 951 if (eq != NULL) { | |
| 952 FreeHeap(value); | |
| 953 } | |
| 954 return true; | |
| 691 | 955 } else if (strcmp(key, "sun.java.command") == 0) { |
| 0 | 956 _java_command = value; |
| 957 | |
|
2129
8f8dfba37802
6994753: Implement optional hook to a Java method at VM startup.
kevinw
parents:
2095
diff
changeset
|
958 // Record value in Arguments, but let it get passed to Java. |
| 691 | 959 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
| 0 | 960 // launcher.pid property is private and is processed |
| 961 // in process_sun_java_launcher_properties(); | |
| 962 // the sun.java.launcher property is passed on to the java application | |
| 963 FreeHeap(key); | |
| 964 if (eq != NULL) { | |
| 965 FreeHeap(value); | |
| 966 } | |
| 967 return true; | |
| 691 | 968 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
| 0 | 969 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
| 970 // its value without going through the property list or making a Java call. | |
| 971 _java_vendor_url_bug = value; | |
| 691 | 972 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
| 973 PropertyList_unique_add(&_system_properties, key, value, true); | |
| 974 return true; | |
| 0 | 975 } |
| 976 // Create new property and add at the end of the list | |
| 977 PropertyList_unique_add(&_system_properties, key, value); | |
| 978 return true; | |
| 979 } | |
| 980 | |
| 981 //=========================================================================================================== | |
| 982 // Setting int/mixed/comp mode flags | |
| 983 | |
| 984 void Arguments::set_mode_flags(Mode mode) { | |
| 985 // Set up default values for all flags. | |
| 986 // If you add a flag to any of the branches below, | |
| 987 // add a default value for it here. | |
| 988 set_java_compiler(false); | |
| 989 _mode = mode; | |
| 990 | |
| 991 // Ensure Agent_OnLoad has the correct initial values. | |
| 992 // This may not be the final mode; mode may change later in onload phase. | |
| 993 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
|
994 (char*)VM_Version::vm_info_string(), false); |
| 0 | 995 |
| 996 UseInterpreter = true; | |
| 997 UseCompiler = true; | |
| 998 UseLoopCounter = true; | |
| 999 | |
|
2458
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1000 #ifndef ZERO |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1001 // 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
|
1002 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
1003 UseFastAccessorMethods = (mode == _int); |
|
2458
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1004 } |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1005 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
1006 UseFastEmptyMethods = (mode == _int); |
|
2458
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1007 } |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1008 #endif |
|
98c560260039
7034513: enable fast accessors and empty methods for ZERO and -Xint
never
parents:
2416
diff
changeset
|
1009 |
| 0 | 1010 // Default values may be platform/compiler dependent - |
| 1011 // use the saved values | |
| 1012 ClipInlining = Arguments::_ClipInlining; | |
| 1013 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
| 1014 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
| 1015 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
| 1016 | |
| 1017 // Change from defaults based on mode | |
| 1018 switch (mode) { | |
| 1019 default: | |
| 1020 ShouldNotReachHere(); | |
| 1021 break; | |
| 1022 case _int: | |
| 1023 UseCompiler = false; | |
| 1024 UseLoopCounter = false; | |
| 1025 AlwaysCompileLoopMethods = false; | |
| 1026 UseOnStackReplacement = false; | |
| 1027 break; | |
| 1028 case _mixed: | |
| 1029 // same as default | |
| 1030 break; | |
| 1031 case _comp: | |
| 1032 UseInterpreter = false; | |
| 1033 BackgroundCompilation = false; | |
| 1034 ClipInlining = false; | |
|
4758
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1035 // 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
|
1036 // 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
|
1037 // 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
|
1038 if (TieredCompilation) { |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1039 Tier3InvokeNotifyFreqLog = 0; |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1040 Tier4InvocationThreshold = 0; |
|
d725f0affb1a
7121111: -server -Xcomp -XX:+TieredCompilation does not invoke C2 compiler
iveresov
parents:
4111
diff
changeset
|
1041 } |
| 0 | 1042 break; |
| 1043 } | |
| 1044 } | |
| 1045 | |
| 1046 // Conflict: required to use shared spaces (-Xshare:on), but | |
| 1047 // incompatible command line options were chosen. | |
| 1048 | |
| 1049 static void no_shared_spaces() { | |
| 1050 if (RequireSharedSpaces) { | |
| 1051 jio_fprintf(defaultStream::error_stream(), | |
| 1052 "Class data sharing is inconsistent with other specified options.\n"); | |
| 1053 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
| 1054 } else { | |
| 1055 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
| 1056 } | |
| 1057 } | |
| 1058 | |
| 1783 | 1059 void Arguments::set_tiered_flags() { |
|
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
2325
diff
changeset
|
1060 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
| 1783 | 1061 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
|
2348
5d8f5a6dced7
7020403: Add AdvancedCompilationPolicy for tiered
iveresov
parents:
2325
diff
changeset
|
1062 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
| 1783 | 1063 } |
| 1064 if (CompilationPolicyChoice < 2) { | |
| 1065 vm_exit_during_initialization( | |
| 1066 "Incompatible compilation policy selected", NULL); | |
| 1067 } | |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
1068 // Increase the code cache size - tiered compiles a lot more. |
| 1783 | 1069 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
| 1070 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
| 1071 } | |
| 1072 } | |
| 1073 | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1074 #if INCLUDE_ALTERNATE_GCS |
| 4838 | 1075 static void disable_adaptive_size_policy(const char* collector_name) { |
| 1076 if (UseAdaptiveSizePolicy) { | |
| 1077 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
| 1078 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
| 1079 collector_name); | |
| 1080 } | |
| 1081 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
| 1082 } | |
| 1083 } | |
| 1084 | |
| 0 | 1085 // If the user has chosen ParallelGCThreads > 0, we set UseParNewGC |
| 1086 // if it's not explictly set or unset. If the user has chosen | |
| 1087 // UseParNewGC and not explicitly set ParallelGCThreads we | |
| 1088 // set it, unless this is a single cpu machine. | |
| 1089 void Arguments::set_parnew_gc_flags() { | |
| 1064 | 1090 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1091 "control point invariant"); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1092 assert(UseParNewGC, "Error"); |
| 0 | 1093 |
| 4838 | 1094 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
| 1095 disable_adaptive_size_policy("UseParNewGC"); | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1096 |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1097 if (ParallelGCThreads == 0) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1098 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1099 Abstract_VM_Version::parallel_worker_threads()); |
| 1064 | 1100 if (ParallelGCThreads == 1) { |
| 0 | 1101 FLAG_SET_DEFAULT(UseParNewGC, false); |
| 1064 | 1102 FLAG_SET_DEFAULT(ParallelGCThreads, 0); |
| 0 | 1103 } |
| 1104 } | |
| 1064 | 1105 if (UseParNewGC) { |
| 695 | 1106 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
| 0 | 1107 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
| 1108 // we set them to 1024 and 1024. | |
| 1109 // See CR 6362902. | |
| 1110 if (FLAG_IS_DEFAULT(YoungPLABSize)) { | |
| 1111 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); | |
| 1112 } | |
| 1113 if (FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1114 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); | |
| 1115 } | |
| 1116 | |
| 1064 | 1117 // AlwaysTenure flag should make ParNew promote all at first collection. |
| 0 | 1118 // See CR 6362902. |
| 1119 if (AlwaysTenure) { | |
| 6818 | 1120 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
| 0 | 1121 } |
| 695 | 1122 // When using compressed oops, we use local overflow stacks, |
| 1123 // rather than using a global overflow list chained through | |
| 1124 // the klass word of the object's pre-image. | |
| 1125 if (UseCompressedOops && !ParGCUseLocalOverflow) { | |
| 1126 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { | |
| 1127 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); | |
| 1128 } | |
| 1129 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); | |
| 1130 } | |
| 1131 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); | |
| 0 | 1132 } |
| 1133 } | |
| 1134 | |
| 1135 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
| 1136 // sparc/solaris for certain applications, but would gain from | |
| 1137 // further optimization and tuning efforts, and would almost | |
| 1138 // certainly gain from analysis of platform and environment. | |
| 1139 void Arguments::set_cms_and_parnew_gc_flags() { | |
| 1064 | 1140 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1141 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
|
1142 |
| 0 | 1143 // If we are using CMS, we prefer to UseParNewGC, |
| 1144 // unless explicitly forbidden. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1145 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1146 FLAG_SET_ERGO(bool, UseParNewGC, true); |
| 0 | 1147 } |
| 1148 | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1149 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
| 4838 | 1150 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
| 0 | 1151 |
| 1152 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
| 1153 // as needed. | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1154 if (UseParNewGC) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1155 set_parnew_gc_flags(); |
| 0 | 1156 } |
| 1157 | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1158 // MaxHeapSize is aligned down in collectorPolicy |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1159 size_t max_heap = align_size_down(MaxHeapSize, |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1160 CardTableRS::ct_max_alignment_constraint()); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1161 |
| 0 | 1162 // Now make adjustments for CMS |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1163 intx tenuring_default = (intx)6; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1164 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1165 |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1166 // Preferred young gen size for "short" pauses: |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1167 // upper bound depends on # of threads and NewRatio. |
| 0 | 1168 const uintx parallel_gc_threads = |
| 1169 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
| 1170 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
|
1171 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
|
1172 size_t preferred_max_new_size = |
| 0 | 1173 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
| 1174 | |
| 1175 // Unless explicitly requested otherwise, size young gen | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1176 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1177 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1178 // 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
|
1179 // 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
|
1180 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
|
1181 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1182 // 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
|
1183 // 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
|
1184 // preferred_max_new_size. |
| 0 | 1185 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
|
1186 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
| 0 | 1187 } else { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1188 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
| 0 | 1189 } |
| 1064 | 1190 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1191 // Too early to use gclog_or_tty |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1192 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
|
1193 } |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1194 |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1195 // 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
|
1196 |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1197 assert(max_heap >= InitialHeapSize, "Error"); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1198 assert(max_heap >= NewSize, "Error"); |
| 0 | 1199 |
| 1064 | 1200 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1201 // Too early to use gclog_or_tty |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1202 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
|
1203 " initial_heap_size: " SIZE_FORMAT |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1204 " max_heap: " SIZE_FORMAT, |
| 1064 | 1205 min_heap_size(), InitialHeapSize, max_heap); |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1206 } |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1207 size_t min_new = preferred_max_new_size; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1208 if (FLAG_IS_CMDLINE(NewSize)) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1209 min_new = NewSize; |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1210 } |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1211 if (max_heap > min_new && min_heap_size() > min_new) { |
| 0 | 1212 // Unless explicitly requested otherwise, make young gen |
| 1213 // at least min_new, and at most preferred_max_new_size. | |
| 1214 if (FLAG_IS_DEFAULT(NewSize)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1215 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
|
1216 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
| 1064 | 1217 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1218 // Too early to use gclog_or_tty |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1219 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
|
1220 } |
| 0 | 1221 } |
| 1222 // Unless explicitly requested otherwise, size old gen | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1223 // so it's NewRatio x of NewSize. |
| 0 | 1224 if (FLAG_IS_DEFAULT(OldSize)) { |
| 1225 if (max_heap > NewSize) { | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1226 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
| 1064 | 1227 if (PrintGCDetails && Verbose) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1228 // Too early to use gclog_or_tty |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
1229 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
|
1230 } |
| 0 | 1231 } |
| 1232 } | |
| 1233 } | |
| 1234 } | |
| 1235 // Unless explicitly requested otherwise, definitely | |
| 1236 // promote all objects surviving "tenuring_default" scavenges. | |
| 1237 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
| 1238 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 6818 | 1239 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
| 0 | 1240 } |
| 1241 // If we decided above (or user explicitly requested) | |
| 1242 // `promote all' (via MaxTenuringThreshold := 0), | |
| 1243 // prefer minuscule survivor spaces so as not to waste | |
| 1244 // space for (non-existent) survivors | |
| 1245 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
|
1246 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
| 0 | 1247 } |
| 1248 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
| 1249 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
| 1250 // This is done in order to make ParNew+CMS configuration to work | |
| 1251 // with YoungPLABSize and OldPLABSize options. | |
| 1252 // See CR 6362902. | |
| 1253 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
| 1254 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1255 // 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
|
1256 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1257 // 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
|
1258 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
|
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1259 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1260 } else { |
| 0 | 1261 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
| 1262 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
| 1263 // we'll let it to take precedence. | |
| 1264 jio_fprintf(defaultStream::error_stream(), | |
|
886
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1265 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1266 " options are specified for the CMS collector." |
|
061cd4d965fc
6862534: -XX:NewRatio completely ignored when combined with -XX:+UseConcMarkSweepG
jmasa
parents:
845
diff
changeset
|
1267 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
| 0 | 1268 } |
| 1269 } | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1270 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1271 // OldPLAB sizing manually turned off: Use a larger default setting, |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1272 // 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
|
1273 // will slow down scavenges. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1274 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1275 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1276 } |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1277 } |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1278 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1279 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1280 // If either of the static initialization defaults have changed, note this |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1281 // modification. |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1282 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1283 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
1284 } |
| 1284 | 1285 if (PrintGCDetails && Verbose) { |
| 1286 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1287 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1288 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1289 } | |
| 0 | 1290 } |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1291 #endif // INCLUDE_ALTERNATE_GCS |
| 0 | 1292 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1293 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
|
1294 // Object alignment. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1295 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
|
1296 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1297 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
|
1298 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
|
1299 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
|
1300 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
|
1301 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1302 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
|
1303 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
|
1304 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1305 // 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
|
1306 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
|
1307 |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1308 #if INCLUDE_ALTERNATE_GCS |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1309 // 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
|
1310 CompactibleFreeListSpace::set_cms_values(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1311 #endif // INCLUDE_ALTERNATE_GCS |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1312 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1313 |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1314 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
|
1315 // Object alignment. |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1316 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
|
1317 jio_fprintf(defaultStream::error_stream(), |
|
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1318 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1319 (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
|
1320 return false; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1321 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1322 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
|
1323 jio_fprintf(defaultStream::error_stream(), |
|
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1324 "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
|
1325 (int)ObjectAlignmentInBytes, BytesPerLong); |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1326 return false; |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1327 } |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1328 // 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
|
1329 // 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
|
1330 // then a saved space from compressed oops. |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1331 if ((int)ObjectAlignmentInBytes > 256) { |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1332 jio_fprintf(defaultStream::error_stream(), |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1333 "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
|
1334 (int)ObjectAlignmentInBytes); |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1335 return false; |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1336 } |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1337 // In case page size is very small. |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1338 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1339 jio_fprintf(defaultStream::error_stream(), |
|
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
kvn
parents:
1796
diff
changeset
|
1340 "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
|
1341 (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
|
1342 return false; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1343 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1344 return true; |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1345 } |
|
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1346 |
|
135
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1347 inline uintx max_heap_for_compressed_oops() { |
| 1963 | 1348 // Avoid sign flip. |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1349 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
| 1963 | 1350 return 0; |
| 1351 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1352 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
| 1064 | 1353 NOT_LP64(ShouldNotReachHere(); return 0); |
|
135
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1354 } |
|
b7268662a986
6689523: max heap calculation for compressed oops is off by MaxPermSize
coleenp
parents:
113
diff
changeset
|
1355 |
| 0 | 1356 bool Arguments::should_auto_select_low_pause_collector() { |
| 1357 if (UseAutoGCSelectPolicy && | |
| 1358 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
| 1359 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
| 1360 if (PrintGCDetails) { | |
| 1361 // Cannot use gclog_or_tty yet. | |
| 1362 tty->print_cr("Automatic selection of the low pause collector" | |
| 1363 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
| 1364 } | |
| 1365 return true; | |
| 1366 } | |
| 1367 return false; | |
| 1368 } | |
| 1369 | |
| 1370 void Arguments::set_ergonomics_flags() { | |
| 1371 | |
| 4946 | 1372 if (os::is_server_class_machine()) { |
| 0 | 1373 // If no other collector is requested explicitly, |
| 1374 // let the VM select the collector based on | |
| 1375 // machine class and automatic selection policy. | |
| 1376 if (!UseSerialGC && | |
| 1377 !UseConcMarkSweepGC && | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1378 !UseG1GC && |
| 0 | 1379 !UseParNewGC && |
| 1380 FLAG_IS_DEFAULT(UseParallelGC)) { | |
| 1381 if (should_auto_select_low_pause_collector()) { | |
| 1382 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
| 1383 } else { | |
| 1384 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
| 1385 } | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1386 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1387 // Shared spaces work fine with other GCs but causes bytecode rewriting |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1388 // to be disabled, which hurts interpreter performance and decreases |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1389 // server performance. On server class machines, keep the default |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1390 // off unless it is asked for. Future work: either add bytecode rewriting |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1391 // at link time, or rewrite bytecodes in non-shared methods. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1392 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
| 0 | 1393 no_shared_spaces(); |
| 1394 } | |
| 1395 } | |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1396 |
| 1010 | 1397 #ifndef ZERO |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1398 #ifdef _LP64 |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1399 // 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
|
1400 // by ergonomics. |
| 187 | 1401 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
| 1783 | 1402 #if !defined(COMPILER1) || defined(TIERED) |
| 2228 | 1403 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 932 | 1404 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
|
1405 } |
| 1060 | 1406 #endif |
|
325
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1407 #ifdef _WIN64 |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1408 if (UseLargePages && UseCompressedOops) { |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1409 // 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
|
1410 // 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
|
1411 // 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
|
1412 // see code in Universe::initialize_heap(). |
|
660978a2a31a
6791178: Specialize for zero as the compressed oop vm heap base
kvn
parents:
570
diff
changeset
|
1413 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
|
1414 } |
|
93befa083681
6741004: UseLargePages + UseCompressedOops breaks implicit null checking guard page
coleenp
parents:
276
diff
changeset
|
1415 #endif // _WIN64 |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1416 } else { |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1417 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
| 344 | 1418 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
|
1419 FLAG_SET_DEFAULT(UseCompressedOops, false); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1420 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1421 } |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1422 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1423 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1424 if (!UseCompressedOops) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1425 if (UseCompressedKlassPointers) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1426 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1427 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1428 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1429 } else { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1430 // Turn on UseCompressedKlassPointers too |
|
6848
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6818
diff
changeset
|
1431 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6818
diff
changeset
|
1432 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
|
8e47bac5643a
7054512: Compress class pointers after perm gen removal
roland
parents:
6818
diff
changeset
|
1433 } |
|
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1434 // Set the ClassMetaspaceSize to something that will not need to be |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1435 // expanded, since it cannot be expanded. |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1436 if (UseCompressedKlassPointers && FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1437 // 100,000 classes seems like a good size, so 100M assumes around 1K |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1438 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1439 // size per klass. Eventually, this will be parameterized because it |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1440 // would also be useful to determine the optimal size of the |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1441 // systemDictionary. |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1442 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1443 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
1444 } |
|
113
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1445 // 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
|
1446 // in vm_version initialization code. |
|
ba764ed4b6f2
6420645: Create a vm that uses compressed oops for up to 32gb heapsizes
coleenp
parents:
76
diff
changeset
|
1447 #endif // _LP64 |
| 1010 | 1448 #endif // !ZERO |
| 0 | 1449 } |
| 1450 | |
| 1451 void Arguments::set_parallel_gc_flags() { | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1452 assert(UseParallelGC || UseParallelOldGC, "Error"); |
| 4879 | 1453 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
| 1454 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
| 1455 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
| 0 | 1456 } |
| 4879 | 1457 FLAG_SET_DEFAULT(UseParallelGC, true); |
| 0 | 1458 |
| 1459 // If no heap maximum was requested explicitly, use some reasonable fraction | |
| 1460 // of the physical memory, up to a maximum of 1GB. | |
| 1461 if (UseParallelGC) { | |
|
4095
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4039
diff
changeset
|
1462 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
bca17e38de00
6593758: RFE: Enhance GC ergonomics to dynamically choose ParallelGCThreads
jmasa
parents:
4039
diff
changeset
|
1463 Abstract_VM_Version::parallel_worker_threads()); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1464 |
| 0 | 1465 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
| 1466 // SurvivorRatio has been set, reset their default values to SurvivorRatio + | |
| 1467 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. | |
| 1468 // See CR 6362902 for details. | |
| 1469 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { | |
| 1470 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { | |
| 1471 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); | |
| 1472 } | |
| 1473 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { | |
| 1474 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); | |
| 1475 } | |
| 1476 } | |
| 1477 | |
| 1478 if (UseParallelOldGC) { | |
| 1479 // 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
|
1480 // 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
|
1481 // interpretation and are not ergonomically set. |
| 0 | 1482 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
|
13
183f41cf8bfe
6557851: CMS: ergonomics defaults are not set with FLAG_SET_ERGO
jmasa
parents:
10
diff
changeset
|
1483 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
| 0 | 1484 } |
| 1485 } | |
| 1486 } | |
|
3322
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1487 if (UseNUMA) { |
|
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1488 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
|
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1489 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
|
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1490 } |
| 3885 | 1491 // For those collectors or operating systems (eg, Windows) that do |
| 1492 // not support full UseNUMA, we will map to UseNUMAInterleaving for now | |
| 1493 UseNUMAInterleaving = true; | |
|
3322
567c87d484a0
7041501: NUMA: Expand the old gen more aggressively
iveresov
parents:
3315
diff
changeset
|
1494 } |
| 0 | 1495 } |
| 1496 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1497 void Arguments::set_g1_gc_flags() { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1498 assert(UseG1GC, "Error"); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1499 #ifdef COMPILER1 |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1500 FastTLABRefill = false; |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1501 #endif |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1502 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1503 Abstract_VM_Version::parallel_worker_threads()); |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1504 if (ParallelGCThreads == 0) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1505 FLAG_SET_DEFAULT(ParallelGCThreads, |
| 751 | 1506 Abstract_VM_Version::parallel_worker_threads()); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1507 } |
| 751 | 1508 |
| 1284 | 1509 if (FLAG_IS_DEFAULT(MarkStackSize)) { |
|
1311
2a1472c30599
4396719: Mark Sweep stack overflow on deeply nested Object arrays
jcoomes
parents:
1284
diff
changeset
|
1510 FLAG_SET_DEFAULT(MarkStackSize, 128 * TASKQUEUE_SIZE); |
| 1284 | 1511 } |
| 1512 if (PrintGCDetails && Verbose) { | |
| 1513 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
| 1514 MarkStackSize / K, MarkStackSizeMax / K); | |
| 1515 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
| 1516 } | |
| 1356 | 1517 |
| 1518 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
| 1519 // In G1, we want the default GC overhead goal to be higher than | |
| 1520 // say in PS. So we set it here to 10%. Otherwise the heap might | |
| 1521 // be expanded more aggressively than we would like it to. In | |
| 1522 // fact, even 10% seems to not be high enough in some cases | |
| 1523 // (especially small GC stress tests that the main thing they do | |
| 1524 // is allocation). We might consider increase it further. | |
| 1525 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
| 1526 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1527 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1528 |
| 1064 | 1529 void Arguments::set_heap_size() { |
| 1530 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
| 1531 // Deprecated flag | |
| 1532 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
| 1533 } | |
| 1534 | |
| 1535 const julong phys_mem = | |
| 1536 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
| 1537 : (julong)MaxRAM; | |
| 1538 | |
| 1539 // If the maximum heap size has not been set with -Xmx, | |
| 1540 // then set it as fraction of the size of physical memory, | |
| 1541 // respecting the maximum and minimum sizes of the heap. | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1542 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
| 1064 | 1543 julong reasonable_max = phys_mem / MaxRAMFraction; |
| 1544 | |
| 1545 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
| 1546 // Small physical memory, so use a minimum fraction of it for the heap | |
| 1547 reasonable_max = phys_mem / MinRAMFraction; | |
| 1548 } else { | |
| 1549 // Not-small physical memory, so require a heap at least | |
| 1550 // as large as MaxHeapSize | |
| 1551 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
| 1552 } | |
| 1553 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
| 1554 // Limit the heap size to ErgoHeapSizeLimit | |
| 1555 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1556 } |
| 1064 | 1557 if (UseCompressedOops) { |
| 1558 // Limit the heap size to the maximum possible when using compressed oops | |
| 1963 | 1559 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
| 1560 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
| 1561 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
| 1562 // but it should be not less than default MaxHeapSize. | |
| 1563 max_coop_heap -= HeapBaseMinAddress; | |
| 1564 } | |
| 1565 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
| 1064 | 1566 } |
| 1567 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
| 1568 | |
| 1569 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
| 1570 // An initial heap size was specified on the command line, | |
| 1571 // so be sure that the maximum size is consistent. Done | |
| 1572 // after call to allocatable_physical_memory because that | |
| 1573 // method might reduce the allocation size. | |
| 1574 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
| 1575 } | |
| 1576 | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1577 if (PrintGCDetails && Verbose) { |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1578 // Cannot use gclog_or_tty yet. |
| 1064 | 1579 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
|
1580 } |
| 1064 | 1581 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
| 1582 } | |
| 1583 | |
| 1584 // If the initial_heap_size has not been set with InitialHeapSize | |
| 1585 // or -Xms, then set it as fraction of the size of physical memory, | |
| 1586 // respecting the maximum and minimum sizes of the heap. | |
| 1587 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
|
1588 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
|
1589 |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1590 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
|
1591 |
|
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1592 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
|
1593 |
| 1064 | 1594 julong reasonable_initial = phys_mem / InitialRAMFraction; |
| 1595 | |
|
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1596 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
| 1064 | 1597 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
| 1598 | |
| 1599 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
| 1600 | |
| 1601 if (PrintGCDetails && Verbose) { | |
| 1602 // Cannot use gclog_or_tty yet. | |
| 1603 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
|
1604 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
|
1605 } |
| 1064 | 1606 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
|
1607 set_min_heap_size((uintx)reasonable_minimum); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1608 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1609 } |
|
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1610 |
| 0 | 1611 // This must be called after ergonomics because we want bytecode rewriting |
| 1612 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
| 1613 void Arguments::set_bytecode_flags() { | |
| 1614 // Better not attempt to store into a read-only space. | |
| 1615 if (UseSharedSpaces) { | |
| 1616 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
| 1617 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1618 } | |
| 1619 | |
| 1620 if (!RewriteBytecodes) { | |
| 1621 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
| 1622 } | |
| 1623 } | |
| 1624 | |
| 1625 // Aggressive optimization flags -XX:+AggressiveOpts | |
| 1626 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
|
1627 #ifdef COMPILER2 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1628 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
|
1629 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1630 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1631 } |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1632 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1633 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1634 } |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1635 |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1636 // 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
|
1637 char buffer[1024]; |
|
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1638 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
|
1639 add_property(buffer); |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1640 } |
|
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1641 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1642 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
|
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1643 } |
|
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1644 #endif |
|
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1645 |
| 0 | 1646 if (AggressiveOpts) { |
| 61 | 1647 // Sample flag setting code |
| 1648 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
| 1649 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
| 1650 // } | |
| 0 | 1651 } |
| 1652 } | |
| 1653 | |
| 1654 //=========================================================================================================== | |
| 1655 // Parsing of java.compiler property | |
| 1656 | |
| 1657 void Arguments::process_java_compiler_argument(char* arg) { | |
| 1658 // For backwards compatibility, Djava.compiler=NONE or "" | |
| 1659 // causes us to switch to -Xint mode UNLESS -Xdebug | |
| 1660 // is also specified. | |
| 1661 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
| 1662 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
| 1663 } | |
| 1664 } | |
| 1665 | |
| 1666 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
| 1667 _sun_java_launcher = strdup(launcher); | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1668 if (strcmp("gamma", _sun_java_launcher) == 0) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1669 _created_by_gamma_launcher = true; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1670 } |
| 0 | 1671 } |
| 1672 | |
| 1673 bool Arguments::created_by_java_launcher() { | |
| 1674 assert(_sun_java_launcher != NULL, "property must have value"); | |
| 1675 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
| 1676 } | |
| 1677 | |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1678 bool Arguments::created_by_gamma_launcher() { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1679 return _created_by_gamma_launcher; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1680 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1681 |
| 0 | 1682 //=========================================================================================================== |
| 1683 // Parsing of main arguments | |
| 1684 | |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1685 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
|
1686 uintx max, const char* name) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1687 // 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
|
1688 // false, otherwise. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1689 if (val >= min && val <= max) { |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1690 return true; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1691 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1692 jio_fprintf(defaultStream::error_stream(), |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1693 "%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
|
1694 " and " UINTX_FORMAT "\n", |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1695 name, val, min, max); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1696 return false; |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1697 } |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1698 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1699 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
|
1700 // 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
|
1701 // false, otherwise. |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1702 if (val >= min ) { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1703 return true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1704 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1705 jio_fprintf(defaultStream::error_stream(), |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1706 "%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
|
1707 name, val, min); |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1708 return false; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1709 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1710 |
| 0 | 1711 bool Arguments::verify_percentage(uintx value, const char* name) { |
| 1712 if (value <= 100) { | |
| 1713 return true; | |
| 1714 } | |
| 1715 jio_fprintf(defaultStream::error_stream(), | |
| 1716 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
| 1717 name, value); | |
| 1718 return false; | |
| 1719 } | |
| 1720 | |
| 1064 | 1721 static void force_serial_gc() { |
| 0 | 1722 FLAG_SET_DEFAULT(UseSerialGC, true); |
| 1723 FLAG_SET_DEFAULT(UseParNewGC, false); | |
| 1724 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
|
1725 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
| 0 | 1726 FLAG_SET_DEFAULT(UseParallelGC, false); |
| 1727 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1728 FLAG_SET_DEFAULT(UseG1GC, false); |
| 0 | 1729 } |
| 1730 | |
| 1731 static bool verify_serial_gc_flags() { | |
| 1732 return (UseSerialGC && | |
|
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1733 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1734 UseParallelGC || UseParallelOldGC)); |
| 0 | 1735 } |
| 1736 | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1737 // check if do gclog rotation |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1738 // +UseGCLogFileRotation is a must, |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1739 // 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
|
1740 // 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
|
1741 void check_gclog_consistency() { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1742 if (UseGCLogFileRotation) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1743 if ((Arguments::gc_log_filename() == NULL) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1744 (NumberOfGCLogFiles == 0) || |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1745 (GCLogFileSize == 0)) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1746 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
|
1747 "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
|
1748 "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
|
1749 "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
|
1750 UseGCLogFileRotation = false; |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1751 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1752 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1753 |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1754 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1755 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
|
1756 jio_fprintf(defaultStream::output_stream(), |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1757 "GCLogFileSize changed to minimum 8K\n"); |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1758 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1759 } |
|
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1760 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1761 // Check consistency of GC selection |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1762 bool Arguments::check_gc_consistency() { |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1763 check_gclog_consistency(); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1764 bool status = true; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1765 // 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
|
1766 // 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
|
1767 // 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
|
1768 // 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
|
1769 // 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
|
1770 // 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
|
1771 // select conflicting combinations. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1772 uint i = 0; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1773 if (UseSerialGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1774 if (UseConcMarkSweepGC || UseParNewGC) i++; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1775 if (UseParallelGC || UseParallelOldGC) i++; |
|
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1776 if (UseG1GC) i++; |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1777 if (i > 1) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1778 jio_fprintf(defaultStream::error_stream(), |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1779 "Conflicting collector combinations in option list; " |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1780 "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
|
1781 "allowed\n"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1782 status = false; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1783 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1784 |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1785 return status; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1786 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1787 |
|
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1788 // Check stack pages settings |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1789 bool Arguments::check_stack_pages() |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1790 { |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1791 bool status = true; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1792 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
|
1793 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
|
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1794 // 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
|
1795 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
|
1796 return status; |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1797 } |
|
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1798 |
| 0 | 1799 // Check the consistency of vm_init_args |
| 1800 bool Arguments::check_vm_args_consistency() { | |
| 1801 // Method for adding checks for flag consistency. | |
| 1802 // The intent is to warn the user of all possible conflicts, | |
| 1803 // before returning an error. | |
| 1804 // Note: Needs platform-dependent factoring. | |
| 1805 bool status = true; | |
| 1806 | |
| 1807 #if ( (defined(COMPILER2) && defined(SPARC))) | |
| 1808 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
| 1809 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
| 1810 // x86. Normally, VM_Version_init must be called from init_globals in | |
| 1811 // init.cpp, which is called by the initial java thread *after* arguments | |
| 1812 // have been parsed. VM_Version_init gets called twice on sparc. | |
| 1813 extern void VM_Version_init(); | |
| 1814 VM_Version_init(); | |
| 1815 if (!VM_Version::has_v9()) { | |
| 1816 jio_fprintf(defaultStream::error_stream(), | |
| 1817 "V8 Machine detected, Server requires V9\n"); | |
| 1818 status = false; | |
| 1819 } | |
| 1820 #endif /* COMPILER2 && SPARC */ | |
| 1821 | |
| 1822 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
| 1823 // builds so the cost of stack banging can be measured. | |
| 1824 #if (defined(PRODUCT) && defined(SOLARIS)) | |
| 1825 if (!UseBoundThreads && !UseStackBanging) { | |
| 1826 jio_fprintf(defaultStream::error_stream(), | |
| 1827 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
| 1828 | |
| 1829 status = false; | |
| 1830 } | |
| 1831 #endif | |
| 1832 | |
| 1833 if (TLABRefillWasteFraction == 0) { | |
| 1834 jio_fprintf(defaultStream::error_stream(), | |
| 1835 "TLABRefillWasteFraction should be a denominator, " | |
| 1836 "not " SIZE_FORMAT "\n", | |
| 1837 TLABRefillWasteFraction); | |
| 1838 status = false; | |
| 1839 } | |
| 1840 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1841 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
| 0 | 1842 "AdaptiveSizePolicyWeight"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1843 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1844 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1845 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
| 0 | 1846 |
| 1847 if (MinHeapFreeRatio > MaxHeapFreeRatio) { | |
| 1848 jio_fprintf(defaultStream::error_stream(), | |
| 1849 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
| 1850 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
| 1851 MinHeapFreeRatio, MaxHeapFreeRatio); | |
| 1852 status = false; | |
| 1853 } | |
| 1854 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
| 1855 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
| 1856 | |
| 1857 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
| 1858 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
| 1859 } | |
| 1860 | |
|
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1861 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1862 // Settings to encourage splitting. |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1863 if (!FLAG_IS_CMDLINE(NewRatio)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1864 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1865 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1866 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1867 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1868 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1869 } |
|
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1870 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1871 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1872 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
| 0 | 1873 if (GCTimeLimit == 100) { |
| 1874 // Turn off gc-overhead-limit-exceeded checks | |
| 1875 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
| 1876 } | |
| 1877 | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1878 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
| 0 | 1879 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1880 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
|
1881 status = status && check_stack_pages(); |
| 0 | 1882 |
| 1883 if (_has_alloc_profile) { | |
| 1884 if (UseParallelGC || UseParallelOldGC) { | |
| 1885 jio_fprintf(defaultStream::error_stream(), | |
| 1886 "error: invalid argument combination.\n" | |
| 1887 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1888 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
| 1889 status = false; | |
| 1890 } | |
| 1891 if (UseConcMarkSweepGC) { | |
| 1892 jio_fprintf(defaultStream::error_stream(), | |
| 1893 "error: invalid argument combination.\n" | |
| 1894 "Allocation profiling (-Xaprof) cannot be used together with " | |
| 1895 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
| 1896 status = false; | |
| 1897 } | |
| 1898 } | |
| 1899 | |
| 1900 if (CMSIncrementalMode) { | |
| 1901 if (!UseConcMarkSweepGC) { | |
| 1902 jio_fprintf(defaultStream::error_stream(), | |
| 1903 "error: invalid argument combination.\n" | |
| 1904 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
| 1905 "selected in order\nto use CMSIncrementalMode.\n"); | |
| 1906 status = false; | |
| 1907 } else { | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1908 status = status && verify_percentage(CMSIncrementalDutyCycle, |
| 0 | 1909 "CMSIncrementalDutyCycle"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1910 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
| 0 | 1911 "CMSIncrementalDutyCycleMin"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1912 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
| 0 | 1913 "CMSIncrementalSafetyFactor"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1914 status = status && verify_percentage(CMSIncrementalOffset, |
| 0 | 1915 "CMSIncrementalOffset"); |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1916 status = status && verify_percentage(CMSExpAvgFactor, |
| 0 | 1917 "CMSExpAvgFactor"); |
| 1918 // If it was not set on the command line, set | |
| 1919 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
| 1920 if (CMSInitiatingOccupancyFraction < 0) { | |
| 1921 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
| 1922 } | |
| 1923 } | |
| 1924 } | |
| 1925 | |
| 1926 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
| 1927 // insists that we hold the requisite locks so that the iteration is | |
| 1928 // MT-safe. For the verification at start-up and shut-down, we don't | |
| 1929 // yet have a good way of acquiring and releasing these locks, | |
| 1930 // which are not visible at the CollectedHeap level. We want to | |
| 1931 // be able to acquire these locks and then do the iteration rather | |
| 1932 // than just disable the lock verification. This will be fixed under | |
| 1933 // bug 4788986. | |
| 1934 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
| 1935 if (VerifyGCStartAt == 0) { | |
| 1936 warning("Heap verification at start-up disabled " | |
| 1937 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1938 VerifyGCStartAt = 1; // Disable verification at start-up | |
| 1939 } | |
| 1940 if (VerifyBeforeExit) { | |
| 1941 warning("Heap verification at shutdown disabled " | |
| 1942 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
| 1943 VerifyBeforeExit = false; // Disable verification at shutdown | |
| 1944 } | |
| 1945 } | |
| 1946 | |
| 1947 // Note: only executed in non-PRODUCT mode | |
| 1948 if (!UseAsyncConcMarkSweepGC && | |
| 1949 (ExplicitGCInvokesConcurrent || | |
| 1950 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
| 1951 jio_fprintf(defaultStream::error_stream(), | |
|
6628
bb3f6194fedb
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
brutisso
parents:
6266
diff
changeset
|
1952 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
| 0 | 1953 " with -UseAsyncConcMarkSweepGC"); |
| 1954 status = false; | |
| 1955 } | |
| 1956 | |
|
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1957 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
|
1958 |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1959 #ifndef SERIALGC |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1960 if (UseG1GC) { |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1961 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
|
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1962 "InitiatingHeapOccupancyPercent"); |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1963 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1964 "G1RefProcDrainInterval"); |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1965 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
|
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1966 "G1ConcMarkStepDurationMillis"); |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1967 } |
|
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
1968 #endif |
|
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
1969 |
|
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1970 status = status && verify_interval(RefDiscoveryPolicy, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1971 ReferenceProcessor::DiscoveryPolicyMin, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1972 ReferenceProcessor::DiscoveryPolicyMax, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1973 "RefDiscoveryPolicy"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1974 |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1975 // 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
|
1976 // expression. |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1977 status = status && verify_interval(TLABWasteTargetPercent, |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1978 1, 100, "TLABWasteTargetPercent"); |
|
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1979 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
1980 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
|
1981 |
|
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1982 status = status && verify_min_value(ClassMetaspaceSize, 1*M, |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1983 "ClassMetaspaceSize"); |
|
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
1984 |
|
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1985 #ifdef SPARC |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1986 if (UseConcMarkSweepGC || UseG1GC) { |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1987 // Issue a stern warning if the user has explicitly set |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1988 // UseMemSetInBOT (it is known to cause issues), but allow |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1989 // use for experimentation and debugging. |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1990 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1991 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1992 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1993 " on sun4v; please understand that you are using at your own risk!"); |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1994 } |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1995 } |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1996 #endif // SPARC |
|
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
1997 |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1998 if (PrintNMTStatistics) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
1999 #if INCLUDE_NMT |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2000 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2001 #endif // INCLUDE_NMT |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2002 warning("PrintNMTStatistics is disabled, because native memory tracking is not enabled"); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2003 PrintNMTStatistics = false; |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2004 #if INCLUDE_NMT |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2005 } |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2006 #endif |
|
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2007 } |
|
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2008 |
| 0 | 2009 return status; |
| 2010 } | |
| 2011 | |
| 2012 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
| 2013 const char* option_type) { | |
| 2014 if (ignore) return false; | |
| 2015 | |
| 2016 const char* spacer = " "; | |
| 2017 if (option_type == NULL) { | |
| 2018 option_type = ++spacer; // Set both to the empty string. | |
| 2019 } | |
| 2020 | |
| 2021 if (os::obsolete_option(option)) { | |
| 2022 jio_fprintf(defaultStream::error_stream(), | |
| 2023 "Obsolete %s%soption: %s\n", option_type, spacer, | |
| 2024 option->optionString); | |
| 2025 return false; | |
| 2026 } else { | |
| 2027 jio_fprintf(defaultStream::error_stream(), | |
| 2028 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
| 2029 option->optionString); | |
| 2030 return true; | |
| 2031 } | |
| 2032 } | |
| 2033 | |
| 2034 static const char* user_assertion_options[] = { | |
| 2035 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
| 2036 }; | |
| 2037 | |
| 2038 static const char* system_assertion_options[] = { | |
| 2039 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
| 2040 }; | |
| 2041 | |
| 2042 // Return true if any of the strings in null-terminated array 'names' matches. | |
| 2043 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
| 2044 // the option must match exactly. | |
| 2045 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
| 2046 bool tail_allowed) { | |
| 2047 for (/* empty */; *names != NULL; ++names) { | |
| 2048 if (match_option(option, *names, tail)) { | |
| 2049 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
| 2050 return true; | |
| 2051 } | |
| 2052 } | |
| 2053 } | |
| 2054 return false; | |
| 2055 } | |
| 2056 | |
| 1284 | 2057 bool Arguments::parse_uintx(const char* value, |
| 2058 uintx* uintx_arg, | |
| 2059 uintx min_size) { | |
| 2060 | |
| 2061 // Check the sign first since atomull() parses only unsigned values. | |
| 2062 bool value_is_positive = !(*value == '-'); | |
| 2063 | |
| 2064 if (value_is_positive) { | |
| 2065 julong n; | |
| 2066 bool good_return = atomull(value, &n); | |
| 2067 if (good_return) { | |
| 2068 bool above_minimum = n >= min_size; | |
| 2069 bool value_is_too_large = n > max_uintx; | |
| 2070 | |
| 2071 if (above_minimum && !value_is_too_large) { | |
| 2072 *uintx_arg = n; | |
| 2073 return true; | |
| 2074 } | |
| 2075 } | |
| 2076 } | |
| 2077 return false; | |
| 2078 } | |
| 2079 | |
| 0 | 2080 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
|
2081 julong* long_arg, |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2082 julong min_size) { |
|
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2083 if (!atomull(s, long_arg)) return arg_unreadable; |
| 0 | 2084 return check_memory_size(*long_arg, min_size); |
| 2085 } | |
| 2086 | |
| 2087 // Parse JavaVMInitArgs structure | |
| 2088 | |
| 2089 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
| 2090 // For components of the system classpath. | |
| 2091 SysClassPath scp(Arguments::get_sysclasspath()); | |
| 2092 bool scp_assembly_required = false; | |
| 2093 | |
| 2094 // Save default settings for some mode flags | |
| 2095 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
| 2096 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
| 2097 Arguments::_ClipInlining = ClipInlining; | |
| 2098 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
| 2099 | |
|
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2100 // Setup flags for mixed which is the default |
|
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2101 set_mode_flags(_mixed); |
|
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2102 |
| 0 | 2103 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
| 2104 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
| 2105 if (result != JNI_OK) { | |
| 2106 return result; | |
| 2107 } | |
| 2108 | |
| 2109 // Parse JavaVMInitArgs structure passed in | |
| 2110 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
| 2111 if (result != JNI_OK) { | |
| 2112 return result; | |
| 2113 } | |
| 2114 | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2115 if (AggressiveOpts) { |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2116 // Insert alt-rt.jar between user-specified bootclasspath |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2117 // prefix and the default bootclasspath. os::set_boot_path() |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2118 // uses meta_index_dir as the default bootclasspath directory. |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2119 const char* altclasses_jar = "alt-rt.jar"; |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2120 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
|
2121 strlen(altclasses_jar); |
| 6197 | 2122 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
|
2123 strcpy(altclasses_path, get_meta_index_dir()); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2124 strcat(altclasses_path, altclasses_jar); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2125 scp.add_suffix_to_prefix(altclasses_path); |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2126 scp_assembly_required = true; |
| 6197 | 2127 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2128 } |
|
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2129 |
| 5915 | 2130 if (WhiteBoxAPI) { |
| 2131 // Append wb.jar to bootclasspath if enabled | |
| 2132 const char* wb_jar = "wb.jar"; | |
| 2133 size_t wb_path_len = strlen(get_meta_index_dir()) + 1 + | |
| 2134 strlen(wb_jar); | |
| 6197 | 2135 char* wb_path = NEW_C_HEAP_ARRAY(char, wb_path_len, mtInternal); |
| 5915 | 2136 strcpy(wb_path, get_meta_index_dir()); |
| 2137 strcat(wb_path, wb_jar); | |
| 2138 scp.add_suffix(wb_path); | |
| 2139 scp_assembly_required = true; | |
| 6197 | 2140 FREE_C_HEAP_ARRAY(char, wb_path, mtInternal); |
| 5915 | 2141 } |
| 2142 | |
| 0 | 2143 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
| 2144 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
| 2145 if (result != JNI_OK) { | |
| 2146 return result; | |
| 2147 } | |
| 2148 | |
| 2149 // Do final processing now that all arguments have been parsed | |
| 2150 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
| 2151 if (result != JNI_OK) { | |
| 2152 return result; | |
| 2153 } | |
| 2154 | |
| 2155 return JNI_OK; | |
| 2156 } | |
| 2157 | |
| 2158 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
| 2159 SysClassPath* scp_p, | |
| 2160 bool* scp_assembly_required_p, | |
| 2161 FlagValueOrigin origin) { | |
| 2162 // Remaining part of option string | |
| 2163 const char* tail; | |
| 2164 | |
| 2165 // iterate over arguments | |
| 2166 for (int index = 0; index < args->nOptions; index++) { | |
| 2167 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
| 2168 | |
| 2169 const JavaVMOption* option = args->options + index; | |
| 2170 | |
| 2171 if (!match_option(option, "-Djava.class.path", &tail) && | |
| 2172 !match_option(option, "-Dsun.java.command", &tail) && | |
| 2173 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
| 2174 | |
| 2175 // add all jvm options to the jvm_args string. This string | |
| 2176 // is used later to set the java.vm.args PerfData string constant. | |
| 2177 // the -Djava.class.path and the -Dsun.java.command options are | |
| 2178 // omitted from jvm_args string as each have their own PerfData | |
| 2179 // string constant object. | |
| 2180 build_jvm_args(option->optionString); | |
| 2181 } | |
| 2182 | |
| 2183 // -verbose:[class/gc/jni] | |
| 2184 if (match_option(option, "-verbose", &tail)) { | |
| 2185 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
| 2186 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
| 2187 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
| 2188 } else if (!strcmp(tail, ":gc")) { | |
| 2189 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2190 } else if (!strcmp(tail, ":jni")) { | |
| 2191 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
| 2192 } | |
| 2193 // -da / -ea / -disableassertions / -enableassertions | |
| 2194 // These accept an optional class/package name separated by a colon, e.g., | |
| 2195 // -da:java.lang.Thread. | |
| 2196 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
| 2197 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2198 if (*tail == '\0') { | |
| 2199 JavaAssertions::setUserClassDefault(enable); | |
| 2200 } else { | |
| 2201 assert(*tail == ':', "bogus match by match_option()"); | |
| 2202 JavaAssertions::addOption(tail + 1, enable); | |
| 2203 } | |
| 2204 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
| 2205 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
| 2206 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
| 2207 JavaAssertions::setSystemClassDefault(enable); | |
| 2208 // -bootclasspath: | |
| 2209 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
| 2210 scp_p->reset_path(tail); | |
| 2211 *scp_assembly_required_p = true; | |
| 2212 // -bootclasspath/a: | |
| 2213 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
| 2214 scp_p->add_suffix(tail); | |
| 2215 *scp_assembly_required_p = true; | |
| 2216 // -bootclasspath/p: | |
| 2217 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
| 2218 scp_p->add_prefix(tail); | |
| 2219 *scp_assembly_required_p = true; | |
| 2220 // -Xrun | |
| 2221 } else if (match_option(option, "-Xrun", &tail)) { | |
|
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2222 if (tail != NULL) { |
| 0 | 2223 const char* pos = strchr(tail, ':'); |
| 2224 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2225 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2226 name[len] = '\0'; |
| 2227 | |
| 2228 char *options = NULL; | |
| 2229 if(pos != NULL) { | |
| 2230 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
| 6197 | 2231 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
| 0 | 2232 } |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2233 #if !INCLUDE_JVMTI |
| 0 | 2234 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2235 warning("profiling and debugging agents are not supported in this VM"); |
| 0 | 2236 } else |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2237 #endif // !INCLUDE_JVMTI |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2238 add_init_library(name, options); |
| 0 | 2239 } |
| 2240 // -agentlib and -agentpath | |
| 2241 } else if (match_option(option, "-agentlib:", &tail) || | |
| 2242 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
| 2243 if(tail != NULL) { | |
| 2244 const char* pos = strchr(tail, '='); | |
| 2245 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
| 6197 | 2246 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
| 0 | 2247 name[len] = '\0'; |
| 2248 | |
| 2249 char *options = NULL; | |
| 2250 if(pos != NULL) { | |
| 6197 | 2251 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
| 0 | 2252 } |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2253 #if !INCLUDE_JVMTI |
| 0 | 2254 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2255 warning("profiling and debugging agents are not supported in this VM"); |
| 0 | 2256 } else |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2257 #endif // !INCLUDE_JVMTI |
| 0 | 2258 add_init_agent(name, options, is_absolute_path); |
| 2259 | |
| 2260 } | |
| 2261 // -javaagent | |
| 2262 } else if (match_option(option, "-javaagent:", &tail)) { | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2263 #if !INCLUDE_JVMTI |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2264 warning("Instrumentation agents are not supported in this VM"); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2265 #else |
| 0 | 2266 if(tail != NULL) { |
| 6197 | 2267 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
| 0 | 2268 add_init_agent("instrument", options, false); |
| 2269 } | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2270 #endif // !INCLUDE_JVMTI |
| 0 | 2271 // -Xnoclassgc |
| 2272 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
| 2273 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
| 2274 // -Xincgc: i-CMS | |
| 2275 } else if (match_option(option, "-Xincgc", &tail)) { | |
| 2276 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2277 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
| 2278 // -Xnoincgc: no i-CMS | |
| 2279 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
| 2280 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2281 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
| 2282 // -Xconcgc | |
| 2283 } else if (match_option(option, "-Xconcgc", &tail)) { | |
| 2284 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
| 2285 // -Xnoconcgc | |
| 2286 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
| 2287 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
| 2288 // -Xbatch | |
| 2289 } else if (match_option(option, "-Xbatch", &tail)) { | |
| 2290 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2291 // -Xmn for compatibility with other JVM vendors | |
| 2292 } else if (match_option(option, "-Xmn", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2293 julong long_initial_eden_size = 0; |
| 0 | 2294 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
| 2295 if (errcode != arg_in_range) { | |
| 2296 jio_fprintf(defaultStream::error_stream(), | |
| 2297 "Invalid initial eden size: %s\n", option->optionString); | |
| 2298 describe_range_error(errcode); | |
| 2299 return JNI_EINVAL; | |
| 2300 } | |
| 1064 | 2301 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
| 2302 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
| 0 | 2303 // -Xms |
| 2304 } else if (match_option(option, "-Xms", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2305 julong long_initial_heap_size = 0; |
| 0 | 2306 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
| 2307 if (errcode != arg_in_range) { | |
| 2308 jio_fprintf(defaultStream::error_stream(), | |
| 2309 "Invalid initial heap size: %s\n", option->optionString); | |
| 2310 describe_range_error(errcode); | |
| 2311 return JNI_EINVAL; | |
| 2312 } | |
| 1064 | 2313 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
| 0 | 2314 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2315 set_min_heap_size(InitialHeapSize); |
| 0 | 2316 // -Xmx |
| 2317 } else if (match_option(option, "-Xmx", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2318 julong long_max_heap_size = 0; |
| 0 | 2319 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
| 2320 if (errcode != arg_in_range) { | |
| 2321 jio_fprintf(defaultStream::error_stream(), | |
| 2322 "Invalid maximum heap size: %s\n", option->optionString); | |
| 2323 describe_range_error(errcode); | |
| 2324 return JNI_EINVAL; | |
| 2325 } | |
| 1064 | 2326 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
| 0 | 2327 // Xmaxf |
| 2328 } else if (match_option(option, "-Xmaxf", &tail)) { | |
| 2329 int maxf = (int)(atof(tail) * 100); | |
| 2330 if (maxf < 0 || maxf > 100) { | |
| 2331 jio_fprintf(defaultStream::error_stream(), | |
| 2332 "Bad max heap free percentage size: %s\n", | |
| 2333 option->optionString); | |
| 2334 return JNI_EINVAL; | |
| 2335 } else { | |
| 2336 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
| 2337 } | |
| 2338 // Xminf | |
| 2339 } else if (match_option(option, "-Xminf", &tail)) { | |
| 2340 int minf = (int)(atof(tail) * 100); | |
| 2341 if (minf < 0 || minf > 100) { | |
| 2342 jio_fprintf(defaultStream::error_stream(), | |
| 2343 "Bad min heap free percentage size: %s\n", | |
| 2344 option->optionString); | |
| 2345 return JNI_EINVAL; | |
| 2346 } else { | |
| 2347 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
| 2348 } | |
| 2349 // -Xss | |
| 2350 } else if (match_option(option, "-Xss", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2351 julong long_ThreadStackSize = 0; |
| 0 | 2352 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
| 2353 if (errcode != arg_in_range) { | |
| 2354 jio_fprintf(defaultStream::error_stream(), | |
| 2355 "Invalid thread stack size: %s\n", option->optionString); | |
| 2356 describe_range_error(errcode); | |
| 2357 return JNI_EINVAL; | |
| 2358 } | |
| 2359 // Internally track ThreadStackSize in units of 1024 bytes. | |
| 2360 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
| 2361 round_to((int)long_ThreadStackSize, K) / K); | |
| 2362 // -Xoss | |
| 2363 } else if (match_option(option, "-Xoss", &tail)) { | |
| 2364 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
| 2365 // -Xmaxjitcodesize | |
|
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2366 } 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
|
2367 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2368 julong long_ReservedCodeCacheSize = 0; |
| 0 | 2369 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2370 (size_t)InitialCodeCacheSize); |
| 0 | 2371 if (errcode != arg_in_range) { |
| 2372 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
|
2373 "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
|
2374 option->optionString, InitialCodeCacheSize/K); |
| 0 | 2375 describe_range_error(errcode); |
| 2376 return JNI_EINVAL; | |
| 2377 } | |
| 2378 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
| 2379 // -green | |
| 2380 } else if (match_option(option, "-green", &tail)) { | |
| 2381 jio_fprintf(defaultStream::error_stream(), | |
| 2382 "Green threads support not available\n"); | |
| 2383 return JNI_EINVAL; | |
| 2384 // -native | |
| 2385 } else if (match_option(option, "-native", &tail)) { | |
| 2386 // HotSpot always uses native threads, ignore silently for compatibility | |
| 2387 // -Xsqnopause | |
| 2388 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
| 2389 // EVM option, ignore silently for compatibility | |
| 2390 // -Xrs | |
| 2391 } else if (match_option(option, "-Xrs", &tail)) { | |
| 2392 // Classic/EVM option, new functionality | |
| 2393 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
| 2394 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
| 2395 // change default internal VM signals used - lower case for back compat | |
| 2396 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
| 2397 // -Xoptimize | |
| 2398 } else if (match_option(option, "-Xoptimize", &tail)) { | |
| 2399 // EVM option, ignore silently for compatibility | |
| 2400 // -Xprof | |
| 2401 } else if (match_option(option, "-Xprof", &tail)) { | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2402 #if INCLUDE_FPROF |
| 0 | 2403 _has_profile = true; |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2404 #else // INCLUDE_FPROF |
| 0 | 2405 // do we have to exit? |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2406 warning("Flat profiling is not supported in this VM."); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2407 #endif // INCLUDE_FPROF |
| 0 | 2408 // -Xaprof |
| 2409 } else if (match_option(option, "-Xaprof", &tail)) { | |
| 2410 _has_alloc_profile = true; | |
| 2411 // -Xconcurrentio | |
| 2412 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
| 2413 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
| 2414 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
| 2415 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
| 2416 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2417 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
| 2418 | |
| 2419 // -Xinternalversion | |
| 2420 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
| 2421 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
| 2422 VM_Version::internal_vm_info_string()); | |
| 2423 vm_exit(0); | |
| 2424 #ifndef PRODUCT | |
| 2425 // -Xprintflags | |
| 2426 } else if (match_option(option, "-Xprintflags", &tail)) { | |
| 4773 | 2427 CommandLineFlags::printFlags(tty, false); |
| 0 | 2428 vm_exit(0); |
| 2429 #endif | |
| 2430 // -D | |
| 2431 } else if (match_option(option, "-D", &tail)) { | |
| 2432 if (!add_property(tail)) { | |
| 2433 return JNI_ENOMEM; | |
| 2434 } | |
| 2435 // Out of the box management support | |
| 2436 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
| 2437 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
| 2438 } | |
| 2439 // -Xint | |
| 2440 } else if (match_option(option, "-Xint", &tail)) { | |
| 2441 set_mode_flags(_int); | |
| 2442 // -Xmixed | |
| 2443 } else if (match_option(option, "-Xmixed", &tail)) { | |
| 2444 set_mode_flags(_mixed); | |
| 2445 // -Xcomp | |
| 2446 } else if (match_option(option, "-Xcomp", &tail)) { | |
| 2447 // for testing the compiler; turn off all flags that inhibit compilation | |
| 2448 set_mode_flags(_comp); | |
| 2449 | |
| 2450 // -Xshare:dump | |
| 2451 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2452 #if defined(KERNEL) |
| 0 | 2453 vm_exit_during_initialization( |
| 2454 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2455 #elif !INCLUDE_CDS |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2456 vm_exit_during_initialization( |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2457 "Dumping a shared archive is not supported in this VM.", NULL); |
| 0 | 2458 #else |
| 2459 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
| 2460 set_mode_flags(_int); // Prevent compilation, which creates objects | |
| 2461 #endif | |
| 2462 // -Xshare:on | |
| 2463 } else if (match_option(option, "-Xshare:on", &tail)) { | |
| 2464 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2465 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
| 2466 // -Xshare:auto | |
| 2467 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
| 2468 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
| 2469 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2470 // -Xshare:off | |
| 2471 } else if (match_option(option, "-Xshare:off", &tail)) { | |
| 2472 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
| 2473 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
| 2474 | |
| 2475 // -Xverify | |
| 2476 } else if (match_option(option, "-Xverify", &tail)) { | |
| 2477 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
| 2478 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
| 2479 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2480 } else if (strcmp(tail, ":remote") == 0) { | |
| 2481 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2482 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
| 2483 } else if (strcmp(tail, ":none") == 0) { | |
| 2484 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
| 2485 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
| 2486 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
| 2487 return JNI_EINVAL; | |
| 2488 } | |
| 2489 // -Xdebug | |
| 2490 } else if (match_option(option, "-Xdebug", &tail)) { | |
| 2491 // note this flag has been used, then ignore | |
| 2492 set_xdebug_mode(true); | |
| 2493 // -Xnoagent | |
| 2494 } else if (match_option(option, "-Xnoagent", &tail)) { | |
| 2495 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
| 2496 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
| 2497 // Bind user level threads to kernel threads (Solaris only) | |
| 2498 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
| 2499 } else if (match_option(option, "-Xloggc:", &tail)) { | |
| 2500 // Redirect GC output to the file. -Xloggc:<filename> | |
| 2501 // ostream_init_log(), when called will use this filename | |
| 2502 // to initialize a fileStream. | |
| 2503 _gc_log_filename = strdup(tail); | |
| 2504 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
| 2505 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
| 2506 | |
| 2507 // JNI hooks | |
| 2508 } else if (match_option(option, "-Xcheck", &tail)) { | |
| 2509 if (!strcmp(tail, ":jni")) { | |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2510 #if !INCLUDE_JNI_CHECK |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2511 warning("JNI CHECKING is not supported in this VM"); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2512 #else |
| 0 | 2513 CheckJNICalls = true; |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2514 #endif // INCLUDE_JNI_CHECK |
| 0 | 2515 } else if (is_bad_option(option, args->ignoreUnrecognized, |
| 2516 "check")) { | |
| 2517 return JNI_EINVAL; | |
| 2518 } | |
| 2519 } else if (match_option(option, "vfprintf", &tail)) { | |
| 2520 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
| 2521 } else if (match_option(option, "exit", &tail)) { | |
| 2522 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
| 2523 } else if (match_option(option, "abort", &tail)) { | |
| 2524 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
| 2525 // -XX:+AggressiveHeap | |
| 2526 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
| 2527 | |
| 2528 // This option inspects the machine and attempts to set various | |
| 2529 // parameters to be optimal for long-running, memory allocation | |
| 2530 // intensive jobs. It is intended for machines with large | |
| 2531 // amounts of cpu and memory. | |
| 2532 | |
| 2533 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
| 2534 // VM, but we may not be able to represent the total physical memory | |
| 2535 // available (like having 8gb of memory on a box but using a 32bit VM). | |
| 2536 // Thus, we need to make sure we're using a julong for intermediate | |
| 2537 // calculations. | |
| 2538 julong initHeapSize; | |
| 2539 julong total_memory = os::physical_memory(); | |
| 2540 | |
| 2541 if (total_memory < (julong)256*M) { | |
| 2542 jio_fprintf(defaultStream::error_stream(), | |
| 2543 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
| 2544 vm_exit(1); | |
| 2545 } | |
| 2546 | |
| 2547 // The heap size is half of available memory, or (at most) | |
| 2548 // all of possible memory less 160mb (leaving room for the OS | |
| 2549 // when using ISM). This is the maximum; because adaptive sizing | |
| 2550 // is turned on below, the actual space used may be smaller. | |
| 2551 | |
| 2552 initHeapSize = MIN2(total_memory / (julong)2, | |
| 2553 total_memory - (julong)160*M); | |
| 2554 | |
| 2555 // Make sure that if we have a lot of memory we cap the 32 bit | |
| 2556 // process space. The 64bit VM version of this function is a nop. | |
| 2557 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
| 2558 | |
| 2559 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
| 2560 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
| 1064 | 2561 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
| 0 | 2562 // Currently the minimum size and the initial heap sizes are the same. |
| 1064 | 2563 set_min_heap_size(initHeapSize); |
| 0 | 2564 } |
| 2565 if (FLAG_IS_DEFAULT(NewSize)) { | |
| 2566 // Make the young generation 3/8ths of the total heap. | |
| 2567 FLAG_SET_CMDLINE(uintx, NewSize, | |
| 2568 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
| 2569 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
| 2570 } | |
| 2571 | |
| 2572 FLAG_SET_DEFAULT(UseLargePages, true); | |
| 2573 | |
| 2574 // Increase some data structure sizes for efficiency | |
| 2575 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
| 2576 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2577 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
| 2578 | |
| 2579 // See the OldPLABSize comment below, but replace 'after promotion' | |
| 2580 // with 'after copying'. YoungPLABSize is the size of the survivor | |
| 2581 // space per-gc-thread buffers. The default is 4kw. | |
| 2582 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
| 2583 | |
| 2584 // OldPLABSize is the size of the buffers in the old gen that | |
| 2585 // UseParallelGC uses to promote live data that doesn't fit in the | |
| 2586 // survivor spaces. At any given time, there's one for each gc thread. | |
| 2587 // The default size is 1kw. These buffers are rarely used, since the | |
| 2588 // survivor spaces are usually big enough. For specjbb, however, there | |
| 2589 // are occasions when there's lots of live data in the young gen | |
| 2590 // and we end up promoting some of it. We don't have a definite | |
| 2591 // explanation for why bumping OldPLABSize helps, but the theory | |
| 2592 // is that a bigger PLAB results in retaining something like the | |
| 2593 // original allocation order after promotion, which improves mutator | |
| 2594 // locality. A minor effect may be that larger PLABs reduce the | |
| 2595 // number of PLAB allocation events during gc. The value of 8kw | |
| 2596 // was arrived at by experimenting with specjbb. | |
| 2597 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
| 2598 | |
| 2599 // Enable parallel GC and adaptive generation sizing | |
| 2600 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2601 FLAG_SET_DEFAULT(ParallelGCThreads, |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2602 Abstract_VM_Version::parallel_worker_threads()); |
| 0 | 2603 |
| 2604 // Encourage steady state memory management | |
| 2605 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
| 2606 | |
| 2607 // This appears to improve mutator locality | |
| 2608 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2609 | |
| 2610 // Get around early Solaris scheduling bug | |
| 2611 // (affinity vs other jobs on system) | |
| 2612 // but disallow DR and offlining (5008695). | |
| 2613 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
| 2614 | |
| 2615 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
| 2616 // The last option must always win. | |
| 2617 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
| 2618 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
| 2619 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
| 2620 // The last option must always win. | |
| 2621 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
| 2622 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
| 2623 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
| 2624 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
| 2625 jio_fprintf(defaultStream::error_stream(), | |
| 2626 "Please use CMSClassUnloadingEnabled in place of " | |
| 2627 "CMSPermGenSweepingEnabled in the future\n"); | |
| 2628 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
| 2629 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
| 2630 jio_fprintf(defaultStream::error_stream(), | |
| 2631 "Please use -XX:+UseGCOverheadLimit in place of " | |
| 2632 "-XX:+UseGCTimeLimit in the future\n"); | |
| 2633 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
| 2634 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
| 2635 jio_fprintf(defaultStream::error_stream(), | |
| 2636 "Please use -XX:-UseGCOverheadLimit in place of " | |
| 2637 "-XX:-UseGCTimeLimit in the future\n"); | |
| 2638 // The TLE options are for compatibility with 1.3 and will be | |
| 2639 // removed without notice in a future release. These options | |
| 2640 // are not to be documented. | |
| 2641 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
| 2642 // No longer used. | |
| 2643 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
| 2644 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
| 2645 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
| 2646 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
| 2647 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
| 2648 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
| 2649 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
| 2650 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
| 2651 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
| 2652 // No longer used. | |
| 2653 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2654 julong long_tlab_size = 0; |
| 0 | 2655 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
| 2656 if (errcode != arg_in_range) { | |
| 2657 jio_fprintf(defaultStream::error_stream(), | |
| 2658 "Invalid TLAB size: %s\n", option->optionString); | |
| 2659 describe_range_error(errcode); | |
| 2660 return JNI_EINVAL; | |
| 2661 } | |
| 2662 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
| 2663 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
| 2664 // No longer used. | |
| 2665 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
| 2666 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
| 2667 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
| 2668 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
| 2669 SOLARIS_ONLY( | |
| 2670 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
| 2671 warning("-XX:+UsePermISM is obsolete."); | |
| 2672 FLAG_SET_CMDLINE(bool, UseISM, true); | |
| 2673 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
| 2674 FLAG_SET_CMDLINE(bool, UseISM, false); | |
| 2675 ) | |
| 2676 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
| 2677 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
| 2678 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
| 2679 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
| 2680 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
| 2681 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
| 2682 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
| 4006 | 2683 #if defined(DTRACE_ENABLED) |
| 0 | 2684 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
| 2685 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
| 2686 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
| 2687 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
| 4006 | 2688 #else // defined(DTRACE_ENABLED) |
| 0 | 2689 jio_fprintf(defaultStream::error_stream(), |
| 4006 | 2690 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
| 0 | 2691 return JNI_EINVAL; |
| 4006 | 2692 #endif // defined(DTRACE_ENABLED) |
| 0 | 2693 #ifdef ASSERT |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2694 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
| 0 | 2695 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
| 2696 // disable scavenge before parallel mark-compact | |
| 2697 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
| 2698 #endif | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2699 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
| 0 | 2700 julong cms_blocks_to_claim = (julong)atol(tail); |
| 2701 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
| 2702 jio_fprintf(defaultStream::error_stream(), | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2703 "Please use -XX:OldPLABSize in place of " |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2704 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2705 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2706 julong cms_blocks_to_claim = (julong)atol(tail); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2707 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2708 jio_fprintf(defaultStream::error_stream(), |
|
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2709 "Please use -XX:OldPLABSize in place of " |
| 0 | 2710 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2711 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2712 julong old_plab_size = 0; |
| 0 | 2713 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
| 2714 if (errcode != arg_in_range) { | |
| 2715 jio_fprintf(defaultStream::error_stream(), | |
| 2716 "Invalid old PLAB size: %s\n", option->optionString); | |
| 2717 describe_range_error(errcode); | |
| 2718 return JNI_EINVAL; | |
| 2719 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2720 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
| 0 | 2721 jio_fprintf(defaultStream::error_stream(), |
| 2722 "Please use -XX:OldPLABSize in place of " | |
| 2723 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2724 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2725 julong young_plab_size = 0; |
| 0 | 2726 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
| 2727 if (errcode != arg_in_range) { | |
| 2728 jio_fprintf(defaultStream::error_stream(), | |
| 2729 "Invalid young PLAB size: %s\n", option->optionString); | |
| 2730 describe_range_error(errcode); | |
| 2731 return JNI_EINVAL; | |
| 2732 } | |
|
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2733 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
| 0 | 2734 jio_fprintf(defaultStream::error_stream(), |
| 2735 "Please use -XX:YoungPLABSize in place of " | |
| 2736 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
| 1284 | 2737 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
| 2738 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
| 2739 julong stack_size = 0; | |
| 2740 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
| 2741 if (errcode != arg_in_range) { | |
| 2742 jio_fprintf(defaultStream::error_stream(), | |
| 2743 "Invalid mark stack size: %s\n", option->optionString); | |
| 2744 describe_range_error(errcode); | |
| 2745 return JNI_EINVAL; | |
| 2746 } | |
| 2747 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
| 2748 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
| 2749 julong max_stack_size = 0; | |
| 2750 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
| 2751 if (errcode != arg_in_range) { | |
| 2752 jio_fprintf(defaultStream::error_stream(), | |
| 2753 "Invalid maximum mark stack size: %s\n", | |
| 2754 option->optionString); | |
| 2755 describe_range_error(errcode); | |
| 2756 return JNI_EINVAL; | |
| 2757 } | |
| 2758 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
| 2759 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
| 2760 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
| 2761 uintx conc_threads = 0; | |
| 2762 if (!parse_uintx(tail, &conc_threads, 1)) { | |
| 2763 jio_fprintf(defaultStream::error_stream(), | |
| 2764 "Invalid concurrent threads: %s\n", option->optionString); | |
| 2765 return JNI_EINVAL; | |
| 2766 } | |
| 2767 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
|
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2768 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2769 julong max_direct_memory_size = 0; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2770 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
|
2771 if (errcode != arg_in_range) { |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2772 jio_fprintf(defaultStream::error_stream(), |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2773 "Invalid maximum direct memory size: %s\n", |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2774 option->optionString); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2775 describe_range_error(errcode); |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2776 return JNI_EINVAL; |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2777 } |
|
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2778 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
|
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2779 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2780 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2781 // away and will cause VM initialization failures! |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2782 warning("-XX:+UseVMInterruptibleIO is obsolete and will be removed in a future release."); |
|
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2783 FLAG_SET_CMDLINE(bool, UseVMInterruptibleIO, true); |
|
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2784 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
| 0 | 2785 // Skip -XX:Flags= since that case has already been handled |
| 2786 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
| 2787 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
| 2788 return JNI_EINVAL; | |
| 2789 } | |
| 2790 } | |
| 2791 // Unknown option | |
| 2792 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
| 2793 return JNI_ERR; | |
| 2794 } | |
| 2795 } | |
|
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2796 |
|
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2797 // 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
|
2798 // when working with older JDKs. |
|
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2799 #ifdef LINUX |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2800 if (JDK_Version::current().compare_major(6) <= 0 && |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2801 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2802 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2803 } |
|
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2804 #endif // LINUX |
| 0 | 2805 return JNI_OK; |
| 2806 } | |
| 2807 | |
| 2808 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
| 2809 // This must be done after all -D arguments have been processed. | |
| 2810 scp_p->expand_endorsed(); | |
| 2811 | |
| 2812 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
| 2813 // Assemble the bootclasspath elements into the final path. | |
| 2814 Arguments::set_sysclasspath(scp_p->combined_path()); | |
| 2815 } | |
| 2816 | |
| 2817 // This must be done after all arguments have been processed. | |
| 2818 // java_compiler() true means set to "NONE" or empty. | |
| 2819 if (java_compiler() && !xdebug_mode()) { | |
| 2820 // For backwards compatibility, we switch to interpreted mode if | |
| 2821 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
| 2822 // not specified. | |
| 2823 set_mode_flags(_int); | |
| 2824 } | |
| 2825 if (CompileThreshold == 0) { | |
| 2826 set_mode_flags(_int); | |
| 2827 } | |
| 2828 | |
| 2829 #ifndef COMPILER2 | |
| 2830 // Don't degrade server performance for footprint | |
| 2831 if (FLAG_IS_DEFAULT(UseLargePages) && | |
| 2832 MaxHeapSize < LargePageHeapSizeThreshold) { | |
| 2833 // No need for large granularity pages w/small heaps. | |
| 2834 // Note that large pages are enabled/disabled for both the | |
| 2835 // Java heap and the code cache. | |
| 2836 FLAG_SET_DEFAULT(UseLargePages, false); | |
| 2837 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
| 2838 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
| 2839 } | |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2840 |
|
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2841 // Tiered compilation is undefined with C1. |
|
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2842 TieredCompilation = false; |
| 0 | 2843 #else |
| 2844 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
| 2845 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
| 2846 } | |
| 2847 #endif | |
| 2848 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2849 // 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
|
2850 // to be true unless the property has already been set. |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2851 // 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
|
2852 if (os::is_headless_jre()) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2853 const char* headless = Arguments::get_property("java.awt.headless"); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2854 if (headless == NULL) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2855 char envbuffer[128]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2856 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2857 if (!add_property("java.awt.headless=true")) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2858 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2859 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2860 } else { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2861 char buffer[256]; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2862 strcpy(buffer, "java.awt.headless="); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2863 strcat(buffer, envbuffer); |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2864 if (!add_property(buffer)) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2865 return JNI_ENOMEM; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2866 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2867 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2868 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2869 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2870 |
| 0 | 2871 if (!check_vm_args_consistency()) { |
| 2872 return JNI_ERR; | |
| 2873 } | |
| 2874 | |
| 2875 return JNI_OK; | |
| 2876 } | |
| 2877 | |
| 2878 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2879 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
| 2880 scp_assembly_required_p); | |
| 2881 } | |
| 2882 | |
| 2883 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2884 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
| 2885 scp_assembly_required_p); | |
| 2886 } | |
| 2887 | |
| 2888 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
| 2889 const int N_MAX_OPTIONS = 64; | |
| 2890 const int OPTION_BUFFER_SIZE = 1024; | |
| 2891 char buffer[OPTION_BUFFER_SIZE]; | |
| 2892 | |
| 2893 // The variable will be ignored if it exceeds the length of the buffer. | |
| 2894 // Don't check this variable if user has special privileges | |
| 2895 // (e.g. unix su command). | |
| 2896 if (os::getenv(name, buffer, sizeof(buffer)) && | |
| 2897 !os::have_special_privileges()) { | |
| 2898 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
| 2899 jio_fprintf(defaultStream::error_stream(), | |
| 2900 "Picked up %s: %s\n", name, buffer); | |
| 2901 char* rd = buffer; // pointer to the input string (rd) | |
| 2902 int i; | |
| 2903 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
| 2904 while (isspace(*rd)) rd++; // skip whitespace | |
| 2905 if (*rd == 0) break; // we re done when the input string is read completely | |
| 2906 | |
| 2907 // The output, option string, overwrites the input string. | |
| 2908 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
| 2909 // input string (rd). | |
| 2910 char* wrt = rd; | |
| 2911 | |
| 2912 options[i++].optionString = wrt; // Fill in option | |
| 2913 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
| 2914 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
| 2915 int quote = *rd; // matching quote to look for | |
| 2916 rd++; // don't copy open quote | |
| 2917 while (*rd != quote) { // include everything (even spaces) up until quote | |
| 2918 if (*rd == 0) { // string termination means unmatched string | |
| 2919 jio_fprintf(defaultStream::error_stream(), | |
| 2920 "Unmatched quote in %s\n", name); | |
| 2921 return JNI_ERR; | |
| 2922 } | |
| 2923 *wrt++ = *rd++; // copy to option string | |
| 2924 } | |
| 2925 rd++; // don't copy close quote | |
| 2926 } else { | |
| 2927 *wrt++ = *rd++; // copy to option string | |
| 2928 } | |
| 2929 } | |
| 2930 // Need to check if we're done before writing a NULL, | |
| 2931 // because the write could be to the byte that rd is pointing to. | |
| 2932 if (*rd++ == 0) { | |
| 2933 *wrt = 0; | |
| 2934 break; | |
| 2935 } | |
| 2936 *wrt = 0; // Zero terminate option | |
| 2937 } | |
| 2938 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
| 2939 JavaVMInitArgs vm_args; | |
| 2940 vm_args.version = JNI_VERSION_1_2; | |
| 2941 vm_args.options = options; | |
| 2942 vm_args.nOptions = i; | |
| 564 | 2943 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
| 0 | 2944 |
| 2945 if (PrintVMOptions) { | |
| 2946 const char* tail; | |
| 2947 for (int i = 0; i < vm_args.nOptions; i++) { | |
| 2948 const JavaVMOption *option = vm_args.options + i; | |
| 2949 if (match_option(option, "-XX:", &tail)) { | |
| 2950 logOption(tail); | |
| 2951 } | |
| 2952 } | |
| 2953 } | |
| 2954 | |
| 2955 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
| 2956 } | |
| 2957 return JNI_OK; | |
| 2958 } | |
| 2959 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2960 void Arguments::set_shared_spaces_flags() { |
| 2378 | 2961 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
| 2962 const bool might_share = must_share || UseSharedSpaces; | |
| 2963 | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2964 // CompressedOops cannot be used with CDS. The offsets of oopmaps and |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2965 // static fields are incorrect in the archive. With some more clever |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2966 // initialization, this restriction can probably be lifted. |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2967 // ??? UseLargePages might be okay now |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2968 const bool cannot_share = UseCompressedOops || |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2969 (UseLargePages && FLAG_IS_CMDLINE(UseLargePages)); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2970 if (cannot_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2971 if (must_share) { |
|
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2972 warning("disabling large pages %s" |
| 2378 | 2973 "because of %s", "" LP64_ONLY("and compressed oops "), |
| 2974 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
| 2975 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
| 2976 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2977 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false)); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2978 } else { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2979 // Prefer compressed oops and large pages to class data sharing |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2980 if (UseSharedSpaces && Verbose) { |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2981 warning("turning off use of shared archive because of large pages%s", |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2982 "" LP64_ONLY(" and/or compressed oops")); |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2983 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2984 no_shared_spaces(); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2985 } |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2986 } else if (UseLargePages && might_share) { |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2987 // 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
|
2988 // there may not even be a shared archive to use. |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2989 FLAG_SET_DEFAULT(UseLargePages, false); |
|
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2990 } |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2991 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2992 // Add 2M to any size for SharedReadOnlySize to get around the JPRT setting |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2993 if (DumpSharedSpaces && !FLAG_IS_DEFAULT(SharedReadOnlySize)) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2994 SharedReadOnlySize = 14*M; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2995 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2996 |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2997 if (DumpSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2998 if (RequireSharedSpaces) { |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
2999 warning("cannot dump shared archive while using shared archive"); |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3000 } |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3001 UseSharedSpaces = false; |
|
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3002 } |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3003 } |
|
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3004 |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3005 // 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
|
3006 // were explicitly requested on the command-line |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3007 #define UNSUPPORTED_OPTION(opt, description) \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3008 do { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3009 if (opt) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3010 if (FLAG_IS_CMDLINE(opt)) { \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3011 warning(description " is disabled in this release."); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3012 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3013 FLAG_SET_DEFAULT(opt, false); \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3014 } \ |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3015 } while(0) |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3016 |
| 0 | 3017 // Parse entry point called from JNI_CreateJavaVM |
| 3018 | |
| 3019 jint Arguments::parse(const JavaVMInitArgs* args) { | |
| 3020 | |
| 3021 // Sharing support | |
| 3022 // Construct the path to the archive | |
| 3023 char jvm_path[JVM_MAXPATHLEN]; | |
| 3024 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
| 3025 char *end = strrchr(jvm_path, *os::file_separator()); | |
| 3026 if (end != NULL) *end = '\0'; | |
| 3027 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
| 6197 | 3028 strlen(os::file_separator()) + 20, mtInternal); |
| 0 | 3029 if (shared_archive_path == NULL) return JNI_ENOMEM; |
| 3030 strcpy(shared_archive_path, jvm_path); | |
| 3031 strcat(shared_archive_path, os::file_separator()); | |
| 3032 strcat(shared_archive_path, "classes"); | |
| 3033 DEBUG_ONLY(strcat(shared_archive_path, "_g");) | |
| 3034 strcat(shared_archive_path, ".jsa"); | |
| 3035 SharedArchivePath = shared_archive_path; | |
| 3036 | |
| 3037 // Remaining part of option string | |
| 3038 const char* tail; | |
| 3039 | |
| 3040 // 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
|
3041 const char* hotspotrc = ".hotspotrc"; |
| 0 | 3042 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
|
3043 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
|
3044 |
| 564 | 3045 const char* flags_file; |
| 0 | 3046 int index; |
| 3047 for (index = 0; index < args->nOptions; index++) { | |
| 3048 const JavaVMOption *option = args->options + index; | |
| 3049 if (match_option(option, "-XX:Flags=", &tail)) { | |
| 564 | 3050 flags_file = tail; |
| 0 | 3051 settings_file_specified = true; |
| 3052 } | |
| 3053 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
| 3054 PrintVMOptions = true; | |
| 3055 } | |
|
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3056 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
|
3057 PrintVMOptions = false; |
|
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3058 } |
| 564 | 3059 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
| 3060 IgnoreUnrecognizedVMOptions = true; | |
| 3061 } | |
| 3062 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
| 3063 IgnoreUnrecognizedVMOptions = false; | |
| 3064 } | |
| 1150 | 3065 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
| 4773 | 3066 CommandLineFlags::printFlags(tty, false); |
| 1150 | 3067 vm_exit(0); |
| 3068 } | |
| 6197 | 3069 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3070 #if INCLUDE_NMT |
| 6197 | 3071 MemTracker::init_tracking_options(tail); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3072 #else |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3073 warning("Native Memory Tracking is not supported in this VM"); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3074 #endif |
| 6197 | 3075 } |
| 3076 | |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3077 |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3078 #ifndef PRODUCT |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3079 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
| 4773 | 3080 CommandLineFlags::printFlags(tty, true); |
|
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3081 vm_exit(0); |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3082 } |
|
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3083 #endif |
| 564 | 3084 } |
| 3085 | |
| 3086 if (IgnoreUnrecognizedVMOptions) { | |
| 3087 // uncast const to modify the flag args->ignoreUnrecognized | |
| 3088 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
| 3089 } | |
| 3090 | |
| 3091 // Parse specified settings file | |
| 3092 if (settings_file_specified) { | |
| 3093 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
| 3094 return JNI_EINVAL; | |
| 3095 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3096 } else { |
|
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3097 #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
|
3098 // Parse default .hotspotrc settings file |
| 0 | 3099 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
| 3100 return JNI_EINVAL; | |
| 3101 } | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3102 #else |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3103 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
|
3104 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
|
3105 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
|
3106 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3107 #endif |
| 0 | 3108 } |
| 3109 | |
| 3110 if (PrintVMOptions) { | |
| 3111 for (index = 0; index < args->nOptions; index++) { | |
| 3112 const JavaVMOption *option = args->options + index; | |
| 3113 if (match_option(option, "-XX:", &tail)) { | |
| 3114 logOption(tail); | |
| 3115 } | |
| 3116 } | |
| 3117 } | |
| 3118 | |
| 3119 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
| 3120 jint result = parse_vm_init_args(args); | |
| 3121 if (result != JNI_OK) { | |
| 3122 return result; | |
| 3123 } | |
| 3124 | |
|
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3125 // 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
|
3126 // 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
|
3127 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
|
3128 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
|
3129 "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
|
3130 hotspotrc, hotspotrc); |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3131 } |
|
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3132 |
|
6055
35e504cb49a6
7167625: Adjustments for SE-Embedded build process
collins
parents:
6017
diff
changeset
|
3133 #if (defined JAVASE_EMBEDDED || defined ARM) |
|
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3134 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3135 #endif |
|
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3136 |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3137 #if !INCLUDE_ALTERNATE_GCS |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3138 if (UseParallelGC) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3139 warning("Parallel GC is not supported in this VM. Using Serial GC."); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3140 } |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3141 if (UseParallelOldGC) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3142 warning("Parallel Old GC is not supported in this VM. Using Serial GC."); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3143 } |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3144 if (UseConcMarkSweepGC) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3145 warning("Concurrent Mark Sweep GC is not supported in this VM. Using Serial GC."); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3146 } |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3147 if (UseParNewGC) { |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3148 warning("Par New GC is not supported in this VM. Using Serial GC."); |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3149 } |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3150 #endif // INCLUDE_ALTERNATE_GCS |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3151 |
| 0 | 3152 #ifndef PRODUCT |
| 3153 if (TraceBytecodesAt != 0) { | |
| 3154 TraceBytecodes = true; | |
| 3155 } | |
| 3156 if (CountCompiledCalls) { | |
| 3157 if (UseCounterDecay) { | |
| 3158 warning("UseCounterDecay disabled because CountCalls is set"); | |
| 3159 UseCounterDecay = false; | |
| 3160 } | |
| 3161 } | |
| 3162 #endif // PRODUCT | |
| 3163 | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3164 // 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
|
3165 if (!JDK_Version::is_gte_jdk17x_version()) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3166 if (EnableInvokeDynamic) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3167 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3168 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
|
3169 } |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3170 EnableInvokeDynamic = false; |
| 710 | 3171 } |
| 3172 } | |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3173 |
|
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3174 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
|
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3175 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
|
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3176 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
|
3177 } |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3178 ScavengeRootsInCode = 1; |
|
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3179 } |
| 710 | 3180 |
| 0 | 3181 if (PrintGCDetails) { |
| 3182 // Turn on -verbose:gc options as well | |
| 3183 PrintGC = true; | |
| 3184 } | |
| 3185 | |
|
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3186 if (!JDK_Version::is_gte_jdk18x_version()) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3187 // 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
|
3188 // true by default in JDK8 and above. |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3189 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3190 FLAG_SET_DEFAULT(PrintGCCause, false); |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3191 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3192 } |
|
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3193 |
|
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3194 // 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
|
3195 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
|
3196 |
| 0 | 3197 #ifdef SERIALGC |
| 1064 | 3198 force_serial_gc(); |
| 0 | 3199 #endif // SERIALGC |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3200 #if !INCLUDE_CDS |
| 0 | 3201 no_shared_spaces(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3202 #endif // INCLUDE_CDS |
| 0 | 3203 |
| 3204 // Set flags based on ergonomics. | |
| 3205 set_ergonomics_flags(); | |
| 3206 | |
|
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3207 set_shared_spaces_flags(); |
|
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3208 |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3209 // Check the GC selections again. |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3210 if (!check_gc_consistency()) { |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3211 return JNI_EINVAL; |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3212 } |
|
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3213 |
| 1783 | 3214 if (TieredCompilation) { |
| 3215 set_tiered_flags(); | |
| 3216 } else { | |
| 3217 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
| 3218 if (CompilationPolicyChoice >= 2) { | |
| 3219 vm_exit_during_initialization( | |
| 3220 "Incompatible compilation policy selected", NULL); | |
| 3221 } | |
| 3222 } | |
| 3223 | |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3224 // Set heap size based on available physical memory |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3225 set_heap_size(); |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3226 |
|
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3227 #if INCLUDE_ALTERNATE_GCS |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3228 // Set per-collector flags |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3229 if (UseParallelGC || UseParallelOldGC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3230 set_parallel_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3231 } 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
|
3232 set_cms_and_parnew_gc_flags(); |
|
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3233 } 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
|
3234 set_parnew_gc_flags(); |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3235 } else if (UseG1GC) { |
|
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3236 set_g1_gc_flags(); |
|
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3237 } |
|
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3238 #endif // INCLUDE_ALTERNATE_GCS |
|
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3239 |
| 0 | 3240 #ifdef SERIALGC |
| 3241 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
| 3242 #endif // SERIALGC | |
| 3243 | |
| 3244 // Set bytecode rewriting flags | |
| 3245 set_bytecode_flags(); | |
| 3246 | |
| 3247 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
| 3248 set_aggressive_opts_flags(); | |
| 3249 | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3250 // Turn off biased locking for locking debug mode flags, |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3251 // 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
|
3252 // biased locking. |
| 2331 | 3253 if (UseHeavyMonitors |
| 3254 #ifdef COMPILER1 | |
| 3255 || !UseFastLocking | |
| 3256 #endif // COMPILER1 | |
| 3257 ) { | |
|
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3258 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3259 // 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
|
3260 // can't enable biased locking here |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3261 warning("Biased Locking is not supported with locking debug flags" |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3262 "; ignoring UseBiasedLocking flag." ); |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3263 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3264 UseBiasedLocking = false; |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3265 } |
|
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3266 |
| 0 | 3267 #ifdef CC_INTERP |
| 1131 | 3268 // Clear flags not supported by the C++ interpreter |
| 3269 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
| 0 | 3270 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
| 1131 | 3271 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
|
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3272 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
| 1131 | 3273 #endif // CC_INTERP |
| 3274 | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3275 #ifdef COMPILER2 |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3276 if (!UseBiasedLocking || EmitSync != 0) { |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3277 UseOptoBiasInlining = false; |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3278 } |
| 4777 | 3279 if (!EliminateLocks) { |
| 3280 EliminateNestedLocks = false; | |
| 3281 } | |
|
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3282 #endif |
|
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3283 |
|
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3284 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3285 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
|
3286 DebugNonSafepoints = true; |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3287 } |
|
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3288 |
|
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3289 #ifndef PRODUCT |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3290 if (CompileTheWorld) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3291 // 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
|
3292 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3293 NmethodSweepFraction = 1; |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3294 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3295 } |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3296 #endif |
|
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3297 |
| 0 | 3298 if (PrintCommandLineFlags) { |
| 4773 | 3299 CommandLineFlags::printSetFlags(tty); |
| 0 | 3300 } |
| 3301 | |
|
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3302 // Apply CPU specific policy for the BiasedLocking |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3303 if (UseBiasedLocking) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3304 if (!VM_Version::use_biased_locking() && |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3305 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3306 UseBiasedLocking = false; |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3307 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3308 } |
|
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3309 |
|
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3310 // 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
|
3311 // 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
|
3312 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
|
3313 bool set = false; |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3314 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3315 if (!set) { |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3316 FLAG_SET_DEFAULT(PauseAtExit, true); |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3317 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3318 } |
|
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3319 |
| 0 | 3320 return JNI_OK; |
| 3321 } | |
| 3322 | |
| 3323 int Arguments::PropertyList_count(SystemProperty* pl) { | |
| 3324 int count = 0; | |
| 3325 while(pl != NULL) { | |
| 3326 count++; | |
| 3327 pl = pl->next(); | |
| 3328 } | |
| 3329 return count; | |
| 3330 } | |
| 3331 | |
| 3332 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
| 3333 assert(key != NULL, "just checking"); | |
| 3334 SystemProperty* prop; | |
| 3335 for (prop = pl; prop != NULL; prop = prop->next()) { | |
| 3336 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
| 3337 } | |
| 3338 return NULL; | |
| 3339 } | |
| 3340 | |
| 3341 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
| 3342 int count = 0; | |
| 3343 const char* ret_val = NULL; | |
| 3344 | |
| 3345 while(pl != NULL) { | |
| 3346 if(count >= index) { | |
| 3347 ret_val = pl->key(); | |
| 3348 break; | |
| 3349 } | |
| 3350 count++; | |
| 3351 pl = pl->next(); | |
| 3352 } | |
| 3353 | |
| 3354 return ret_val; | |
| 3355 } | |
| 3356 | |
| 3357 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
| 3358 int count = 0; | |
| 3359 char* ret_val = NULL; | |
| 3360 | |
| 3361 while(pl != NULL) { | |
| 3362 if(count >= index) { | |
| 3363 ret_val = pl->value(); | |
| 3364 break; | |
| 3365 } | |
| 3366 count++; | |
| 3367 pl = pl->next(); | |
| 3368 } | |
| 3369 | |
| 3370 return ret_val; | |
| 3371 } | |
| 3372 | |
| 3373 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
| 3374 SystemProperty* p = *plist; | |
| 3375 if (p == NULL) { | |
| 3376 *plist = new_p; | |
| 3377 } else { | |
| 3378 while (p->next() != NULL) { | |
| 3379 p = p->next(); | |
| 3380 } | |
| 3381 p->set_next(new_p); | |
| 3382 } | |
| 3383 } | |
| 3384 | |
| 3385 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
| 3386 if (plist == NULL) | |
| 3387 return; | |
| 3388 | |
| 3389 SystemProperty* new_p = new SystemProperty(k, v, true); | |
| 3390 PropertyList_add(plist, new_p); | |
| 3391 } | |
| 3392 | |
| 3393 // This add maintains unique property key in the list. | |
| 691 | 3394 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
| 0 | 3395 if (plist == NULL) |
| 3396 return; | |
| 3397 | |
| 3398 // If property key exist then update with new value. | |
| 3399 SystemProperty* prop; | |
| 3400 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
| 3401 if (strcmp(k, prop->key()) == 0) { | |
| 691 | 3402 if (append) { |
| 3403 prop->append_value(v); | |
| 3404 } else { | |
| 3405 prop->set_value(v); | |
| 3406 } | |
| 0 | 3407 return; |
| 3408 } | |
| 3409 } | |
| 3410 | |
| 3411 PropertyList_add(plist, k, v); | |
| 3412 } | |
| 3413 | |
| 3414 #ifdef KERNEL | |
| 3415 char *Arguments::get_kernel_properties() { | |
| 3416 // Find properties starting with kernel and append them to string | |
| 3417 // We need to find out how long they are first because the URL's that they | |
| 3418 // might point to could get long. | |
| 3419 int length = 0; | |
| 3420 SystemProperty* prop; | |
| 3421 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3422 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3423 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
| 3424 } | |
| 3425 } | |
| 3426 // Add one for null terminator. | |
| 6197 | 3427 char *props = AllocateHeap(length + 1, mtInternal); |
| 0 | 3428 if (length != 0) { |
| 3429 int pos = 0; | |
| 3430 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
| 3431 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
| 3432 jio_snprintf(&props[pos], length-pos, | |
| 3433 "-D%s=%s ", prop->key(), prop->value()); | |
| 3434 pos = strlen(props); | |
| 3435 } | |
| 3436 } | |
| 3437 } | |
| 3438 // null terminate props in case of null | |
| 3439 props[length] = '\0'; | |
| 3440 return props; | |
| 3441 } | |
| 3442 #endif // KERNEL | |
| 3443 | |
| 3444 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
| 3445 // Returns true if all of the source pointed by src has been copied over to | |
| 3446 // the destination buffer pointed by buf. Otherwise, returns false. | |
| 3447 // Notes: | |
| 3448 // 1. If the length (buflen) of the destination buffer excluding the | |
| 3449 // NULL terminator character is not long enough for holding the expanded | |
| 3450 // pid characters, it also returns false instead of returning the partially | |
| 3451 // expanded one. | |
| 3452 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
| 3453 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
| 3454 char* buf, size_t buflen) { | |
| 3455 const char* p = src; | |
| 3456 char* b = buf; | |
| 3457 const char* src_end = &src[srclen]; | |
| 3458 char* buf_end = &buf[buflen - 1]; | |
| 3459 | |
| 3460 while (p < src_end && b < buf_end) { | |
| 3461 if (*p == '%') { | |
| 3462 switch (*(++p)) { | |
| 3463 case '%': // "%%" ==> "%" | |
| 3464 *b++ = *p++; | |
| 3465 break; | |
| 3466 case 'p': { // "%p" ==> current process id | |
| 3467 // buf_end points to the character before the last character so | |
| 3468 // that we could write '\0' to the end of the buffer. | |
| 3469 size_t buf_sz = buf_end - b + 1; | |
| 3470 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
| 3471 | |
| 3472 // if jio_snprintf fails or the buffer is not long enough to hold | |
| 3473 // the expanded pid, returns false. | |
| 3474 if (ret < 0 || ret >= (int)buf_sz) { | |
| 3475 return false; | |
| 3476 } else { | |
| 3477 b += ret; | |
| 3478 assert(*b == '\0', "fail in copy_expand_pid"); | |
| 3479 if (p == src_end && b == buf_end + 1) { | |
| 3480 // reach the end of the buffer. | |
| 3481 return true; | |
| 3482 } | |
| 3483 } | |
| 3484 p++; | |
| 3485 break; | |
| 3486 } | |
| 3487 default : | |
| 3488 *b++ = '%'; | |
| 3489 } | |
| 3490 } else { | |
| 3491 *b++ = *p++; | |
| 3492 } | |
| 3493 } | |
| 3494 *b = '\0'; | |
| 3495 return (p == src_end); // return false if not all of the source was copied | |
| 3496 } |