Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 12034:274ce305e5b9
8020598: ObjectCountEventSender::send needs INCLUDE_TRACE guards when building OpenJDK with INCLUDE_TRACE=0
Reviewed-by: stefank, brutisso, sjohanss
author | ehelin |
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date | Tue, 13 Aug 2013 18:16:19 +0200 |
parents | 5e0b3d7df485 |
children | 3cce976666d9 740e263c80c6 bdd155477289 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaAssertions.hpp" | |
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27 #include "classfile/symbolTable.hpp" |
1972 | 28 #include "compiler/compilerOracle.hpp" |
29 #include "memory/allocation.inline.hpp" | |
30 #include "memory/cardTableRS.hpp" | |
31 #include "memory/referenceProcessor.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/jvmtiExport.hpp" | |
35 #include "runtime/arguments.hpp" | |
36 #include "runtime/globals_extension.hpp" | |
37 #include "runtime/java.hpp" | |
38 #include "services/management.hpp" | |
6197 | 39 #include "services/memTracker.hpp" |
1972 | 40 #include "utilities/defaultStream.hpp" |
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41 #include "utilities/macros.hpp" |
1972 | 42 #include "utilities/taskqueue.hpp" |
43 #ifdef TARGET_OS_FAMILY_linux | |
44 # include "os_linux.inline.hpp" | |
45 #endif | |
46 #ifdef TARGET_OS_FAMILY_solaris | |
47 # include "os_solaris.inline.hpp" | |
48 #endif | |
49 #ifdef TARGET_OS_FAMILY_windows | |
50 # include "os_windows.inline.hpp" | |
51 #endif | |
3960 | 52 #ifdef TARGET_OS_FAMILY_bsd |
53 # include "os_bsd.inline.hpp" | |
54 #endif | |
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55 #if INCLUDE_ALL_GCS |
1972 | 56 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
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57 #endif // INCLUDE_ALL_GCS |
0 | 58 |
2474 | 59 // Note: This is a special bug reporting site for the JVM |
60 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 61 #define DEFAULT_JAVA_LAUNCHER "generic" |
62 | |
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63 // Disable options not supported in this release, with a warning if they |
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64 // were explicitly requested on the command-line |
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65 #define UNSUPPORTED_OPTION(opt, description) \ |
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66 do { \ |
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67 if (opt) { \ |
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68 if (FLAG_IS_CMDLINE(opt)) { \ |
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69 warning(description " is disabled in this release."); \ |
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70 } \ |
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71 FLAG_SET_DEFAULT(opt, false); \ |
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72 } \ |
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73 } while(0) |
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74 |
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75 #define UNSUPPORTED_GC_OPTION(gc) \ |
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76 do { \ |
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77 if (gc) { \ |
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78 if (FLAG_IS_CMDLINE(gc)) { \ |
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79 warning(#gc " is not supported in this VM. Using Serial GC."); \ |
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80 } \ |
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81 FLAG_SET_DEFAULT(gc, false); \ |
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82 } \ |
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83 } while(0) |
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84 |
0 | 85 char** Arguments::_jvm_flags_array = NULL; |
86 int Arguments::_num_jvm_flags = 0; | |
87 char** Arguments::_jvm_args_array = NULL; | |
88 int Arguments::_num_jvm_args = 0; | |
89 char* Arguments::_java_command = NULL; | |
90 SystemProperty* Arguments::_system_properties = NULL; | |
91 const char* Arguments::_gc_log_filename = NULL; | |
92 bool Arguments::_has_profile = false; | |
93 uintx Arguments::_min_heap_size = 0; | |
94 Arguments::Mode Arguments::_mode = _mixed; | |
95 bool Arguments::_java_compiler = false; | |
96 bool Arguments::_xdebug_mode = false; | |
97 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
98 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
99 int Arguments::_sun_java_launcher_pid = -1; | |
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100 bool Arguments::_created_by_gamma_launcher = false; |
0 | 101 |
102 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
103 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
104 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
105 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
106 bool Arguments::_ClipInlining = ClipInlining; | |
107 | |
108 char* Arguments::SharedArchivePath = NULL; | |
109 | |
110 AgentLibraryList Arguments::_libraryList; | |
111 AgentLibraryList Arguments::_agentList; | |
112 | |
113 abort_hook_t Arguments::_abort_hook = NULL; | |
114 exit_hook_t Arguments::_exit_hook = NULL; | |
115 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
116 | |
117 | |
118 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
119 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
120 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
121 SystemProperty *Arguments::_java_library_path = NULL; | |
122 SystemProperty *Arguments::_java_home = NULL; | |
123 SystemProperty *Arguments::_java_class_path = NULL; | |
124 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
125 | |
126 char* Arguments::_meta_index_path = NULL; | |
127 char* Arguments::_meta_index_dir = NULL; | |
128 | |
129 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
130 | |
131 static bool match_option(const JavaVMOption *option, const char* name, | |
132 const char** tail) { | |
133 int len = (int)strlen(name); | |
134 if (strncmp(option->optionString, name, len) == 0) { | |
135 *tail = option->optionString + len; | |
136 return true; | |
137 } else { | |
138 return false; | |
139 } | |
140 } | |
141 | |
142 static void logOption(const char* opt) { | |
143 if (PrintVMOptions) { | |
144 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
145 } | |
146 } | |
147 | |
148 // Process java launcher properties. | |
149 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
150 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
151 // Must do this before setting up other system properties, | |
152 // as some of them may depend on launcher type. | |
153 for (int index = 0; index < args->nOptions; index++) { | |
154 const JavaVMOption* option = args->options + index; | |
155 const char* tail; | |
156 | |
157 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
158 process_java_launcher_argument(tail, option->extraInfo); | |
159 continue; | |
160 } | |
161 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
162 _sun_java_launcher_pid = atoi(tail); | |
163 continue; | |
164 } | |
165 } | |
166 } | |
167 | |
168 // Initialize system properties key and value. | |
169 void Arguments::init_system_properties() { | |
170 | |
171 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
172 "Java Virtual Machine Specification", false)); | |
173 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
174 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
175 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
176 | |
177 // following are JVMTI agent writeable properties. | |
178 // Properties values are set to NULL and they are | |
179 // os specific they are initialized in os::init_system_properties_values(). | |
180 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
181 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
182 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
183 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
184 _java_home = new SystemProperty("java.home", NULL, true); | |
185 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
186 | |
187 _java_class_path = new SystemProperty("java.class.path", "", true); | |
188 | |
189 // Add to System Property list. | |
190 PropertyList_add(&_system_properties, _java_ext_dirs); | |
191 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
192 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
193 PropertyList_add(&_system_properties, _java_library_path); | |
194 PropertyList_add(&_system_properties, _java_home); | |
195 PropertyList_add(&_system_properties, _java_class_path); | |
196 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
197 | |
198 // Set OS specific system properties values | |
199 os::init_system_properties_values(); | |
200 } | |
201 | |
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202 |
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203 // Update/Initialize System properties after JDK version number is known |
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204 void Arguments::init_version_specific_system_properties() { |
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205 enum { bufsz = 16 }; |
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206 char buffer[bufsz]; |
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207 const char* spec_vendor = "Sun Microsystems Inc."; |
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208 uint32_t spec_version = 0; |
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209 |
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210 if (JDK_Version::is_gte_jdk17x_version()) { |
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211 spec_vendor = "Oracle Corporation"; |
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212 spec_version = JDK_Version::current().major_version(); |
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213 } |
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214 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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215 |
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216 PropertyList_add(&_system_properties, |
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217 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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218 PropertyList_add(&_system_properties, |
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219 new SystemProperty("java.vm.specification.version", buffer, false)); |
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220 PropertyList_add(&_system_properties, |
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221 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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222 } |
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223 |
242 | 224 /** |
225 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
226 * When a flag is eliminated, it can be added to this list in order to | |
227 * continue accepting this flag on the command-line, while issuing a warning | |
228 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
229 * limit, we flatly refuse to admit the existence of the flag. This allows | |
230 * a flag to die correctly over JDK releases using HSX. | |
231 */ | |
232 typedef struct { | |
233 const char* name; | |
234 JDK_Version obsoleted_in; // when the flag went away | |
235 JDK_Version accept_until; // which version to start denying the existence | |
236 } ObsoleteFlag; | |
0 | 237 |
242 | 238 static ObsoleteFlag obsolete_jvm_flags[] = { |
239 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
240 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
241 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
242 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
243 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
244 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
245 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
246 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
247 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
248 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
249 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
250 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
251 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
252 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 253 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
254 { "DefaultInitialRAMFraction", | |
255 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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256 { "UseDepthFirstScavengeOrder", |
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257 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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258 { "HandlePromotionFailure", |
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259 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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260 { "MaxLiveObjectEvacuationRatio", |
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261 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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262 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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263 { "UseParallelOldGCCompacting", |
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264 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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265 { "UseParallelDensePrefixUpdate", |
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266 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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267 { "UseParallelOldGCDensePrefix", |
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268 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 269 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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270 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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271 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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272 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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273 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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274 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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275 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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276 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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277 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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278 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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279 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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280 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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281 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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282 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 283 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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284 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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285 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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286 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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287 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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288 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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289 #ifdef PRODUCT |
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290 { "DesiredMethodLimit", |
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291 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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292 #endif // PRODUCT |
242 | 293 { NULL, JDK_Version(0), JDK_Version(0) } |
294 }; | |
295 | |
296 // Returns true if the flag is obsolete and fits into the range specified | |
297 // for being ignored. In the case that the flag is ignored, the 'version' | |
298 // value is filled in with the version number when the flag became | |
299 // obsolete so that that value can be displayed to the user. | |
300 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 301 int i = 0; |
242 | 302 assert(version != NULL, "Must provide a version buffer"); |
303 while (obsolete_jvm_flags[i].name != NULL) { | |
304 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 305 // <flag>=xxx form |
306 // [-|+]<flag> form | |
242 | 307 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 308 ((s[0] == '+' || s[0] == '-') && |
242 | 309 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
310 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
311 *version = flag_status.obsoleted_in; | |
312 return true; | |
313 } | |
0 | 314 } |
315 i++; | |
316 } | |
317 return false; | |
318 } | |
319 | |
320 // Constructs the system class path (aka boot class path) from the following | |
321 // components, in order: | |
322 // | |
323 // prefix // from -Xbootclasspath/p:... | |
324 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
325 // base // from os::get_system_properties() or -Xbootclasspath= | |
326 // suffix // from -Xbootclasspath/a:... | |
327 // | |
328 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
329 // directories are added to the sysclasspath just before the base. | |
330 // | |
331 // This could be AllStatic, but it isn't needed after argument processing is | |
332 // complete. | |
333 class SysClassPath: public StackObj { | |
334 public: | |
335 SysClassPath(const char* base); | |
336 ~SysClassPath(); | |
337 | |
338 inline void set_base(const char* base); | |
339 inline void add_prefix(const char* prefix); | |
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340 inline void add_suffix_to_prefix(const char* suffix); |
0 | 341 inline void add_suffix(const char* suffix); |
342 inline void reset_path(const char* base); | |
343 | |
344 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
345 // property. Must be called after all command-line arguments have been | |
346 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
347 // combined_path(). | |
348 void expand_endorsed(); | |
349 | |
350 inline const char* get_base() const { return _items[_scp_base]; } | |
351 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
352 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
353 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
354 | |
355 // Combine all the components into a single c-heap-allocated string; caller | |
356 // must free the string if/when no longer needed. | |
357 char* combined_path(); | |
358 | |
359 private: | |
360 // Utility routines. | |
361 static char* add_to_path(const char* path, const char* str, bool prepend); | |
362 static char* add_jars_to_path(char* path, const char* directory); | |
363 | |
364 inline void reset_item_at(int index); | |
365 | |
366 // Array indices for the items that make up the sysclasspath. All except the | |
367 // base are allocated in the C heap and freed by this class. | |
368 enum { | |
369 _scp_prefix, // from -Xbootclasspath/p:... | |
370 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
371 _scp_base, // the default sysclasspath | |
372 _scp_suffix, // from -Xbootclasspath/a:... | |
373 _scp_nitems // the number of items, must be last. | |
374 }; | |
375 | |
376 const char* _items[_scp_nitems]; | |
377 DEBUG_ONLY(bool _expansion_done;) | |
378 }; | |
379 | |
380 SysClassPath::SysClassPath(const char* base) { | |
381 memset(_items, 0, sizeof(_items)); | |
382 _items[_scp_base] = base; | |
383 DEBUG_ONLY(_expansion_done = false;) | |
384 } | |
385 | |
386 SysClassPath::~SysClassPath() { | |
387 // Free everything except the base. | |
388 for (int i = 0; i < _scp_nitems; ++i) { | |
389 if (i != _scp_base) reset_item_at(i); | |
390 } | |
391 DEBUG_ONLY(_expansion_done = false;) | |
392 } | |
393 | |
394 inline void SysClassPath::set_base(const char* base) { | |
395 _items[_scp_base] = base; | |
396 } | |
397 | |
398 inline void SysClassPath::add_prefix(const char* prefix) { | |
399 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
400 } | |
401 | |
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402 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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403 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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404 } |
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405 |
0 | 406 inline void SysClassPath::add_suffix(const char* suffix) { |
407 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
408 } | |
409 | |
410 inline void SysClassPath::reset_item_at(int index) { | |
411 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
412 if (_items[index] != NULL) { | |
6197 | 413 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 414 _items[index] = NULL; |
415 } | |
416 } | |
417 | |
418 inline void SysClassPath::reset_path(const char* base) { | |
419 // Clear the prefix and suffix. | |
420 reset_item_at(_scp_prefix); | |
421 reset_item_at(_scp_suffix); | |
422 set_base(base); | |
423 } | |
424 | |
425 //------------------------------------------------------------------------------ | |
426 | |
427 void SysClassPath::expand_endorsed() { | |
428 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
429 | |
430 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
431 if (path == NULL) { | |
432 path = Arguments::get_endorsed_dir(); | |
433 assert(path != NULL, "no default for java.endorsed.dirs"); | |
434 } | |
435 | |
436 char* expanded_path = NULL; | |
437 const char separator = *os::path_separator(); | |
438 const char* const end = path + strlen(path); | |
439 while (path < end) { | |
440 const char* tmp_end = strchr(path, separator); | |
441 if (tmp_end == NULL) { | |
442 expanded_path = add_jars_to_path(expanded_path, path); | |
443 path = end; | |
444 } else { | |
6197 | 445 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 446 memcpy(dirpath, path, tmp_end - path); |
447 dirpath[tmp_end - path] = '\0'; | |
448 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 449 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 450 path = tmp_end + 1; |
451 } | |
452 } | |
453 _items[_scp_endorsed] = expanded_path; | |
454 DEBUG_ONLY(_expansion_done = true;) | |
455 } | |
456 | |
457 // Combine the bootclasspath elements, some of which may be null, into a single | |
458 // c-heap-allocated string. | |
459 char* SysClassPath::combined_path() { | |
460 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
461 assert(_expansion_done, "must call expand_endorsed() first."); | |
462 | |
463 size_t lengths[_scp_nitems]; | |
464 size_t total_len = 0; | |
465 | |
466 const char separator = *os::path_separator(); | |
467 | |
468 // Get the lengths. | |
469 int i; | |
470 for (i = 0; i < _scp_nitems; ++i) { | |
471 if (_items[i] != NULL) { | |
472 lengths[i] = strlen(_items[i]); | |
473 // Include space for the separator char (or a NULL for the last item). | |
474 total_len += lengths[i] + 1; | |
475 } | |
476 } | |
477 assert(total_len > 0, "empty sysclasspath not allowed"); | |
478 | |
479 // Copy the _items to a single string. | |
6197 | 480 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 481 char* cp_tmp = cp; |
482 for (i = 0; i < _scp_nitems; ++i) { | |
483 if (_items[i] != NULL) { | |
484 memcpy(cp_tmp, _items[i], lengths[i]); | |
485 cp_tmp += lengths[i]; | |
486 *cp_tmp++ = separator; | |
487 } | |
488 } | |
489 *--cp_tmp = '\0'; // Replace the extra separator. | |
490 return cp; | |
491 } | |
492 | |
493 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
494 char* | |
495 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
496 char *cp; | |
497 | |
498 assert(str != NULL, "just checking"); | |
499 if (path == NULL) { | |
500 size_t len = strlen(str) + 1; | |
6197 | 501 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 502 memcpy(cp, str, len); // copy the trailing null |
503 } else { | |
504 const char separator = *os::path_separator(); | |
505 size_t old_len = strlen(path); | |
506 size_t str_len = strlen(str); | |
507 size_t len = old_len + str_len + 2; | |
508 | |
509 if (prepend) { | |
6197 | 510 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 511 char* cp_tmp = cp; |
512 memcpy(cp_tmp, str, str_len); | |
513 cp_tmp += str_len; | |
514 *cp_tmp = separator; | |
515 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 516 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 517 } else { |
6197 | 518 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 519 char* cp_tmp = cp + old_len; |
520 *cp_tmp = separator; | |
521 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
522 } | |
523 } | |
524 return cp; | |
525 } | |
526 | |
527 // Scan the directory and append any jar or zip files found to path. | |
528 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
529 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
530 DIR* dir = os::opendir(directory); | |
531 if (dir == NULL) return path; | |
532 | |
533 char dir_sep[2] = { '\0', '\0' }; | |
534 size_t directory_len = strlen(directory); | |
535 const char fileSep = *os::file_separator(); | |
536 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
537 | |
538 /* Scan the directory for jars/zips, appending them to path. */ | |
539 struct dirent *entry; | |
6197 | 540 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 541 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
542 const char* name = entry->d_name; | |
543 const char* ext = name + strlen(name) - 4; | |
544 bool isJarOrZip = ext > name && | |
545 (os::file_name_strcmp(ext, ".jar") == 0 || | |
546 os::file_name_strcmp(ext, ".zip") == 0); | |
547 if (isJarOrZip) { | |
6197 | 548 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 549 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
550 path = add_to_path(path, jarpath, false); | |
6197 | 551 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 552 } |
553 } | |
6197 | 554 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 555 os::closedir(dir); |
556 return path; | |
557 } | |
558 | |
559 // Parses a memory size specification string. | |
489
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560 static bool atomull(const char *s, julong* result) { |
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561 julong n = 0; |
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562 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 563 if (args_read != 1) { |
564 return false; | |
565 } | |
566 while (*s != '\0' && isdigit(*s)) { | |
567 s++; | |
568 } | |
569 // 4705540: illegal if more characters are found after the first non-digit | |
570 if (strlen(s) > 1) { | |
571 return false; | |
572 } | |
573 switch (*s) { | |
574 case 'T': case 't': | |
575 *result = n * G * K; | |
489
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576 // Check for overflow. |
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577 if (*result/((julong)G * K) != n) return false; |
0 | 578 return true; |
579 case 'G': case 'g': | |
580 *result = n * G; | |
489
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581 if (*result/G != n) return false; |
0 | 582 return true; |
583 case 'M': case 'm': | |
584 *result = n * M; | |
489
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585 if (*result/M != n) return false; |
0 | 586 return true; |
587 case 'K': case 'k': | |
588 *result = n * K; | |
489
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589 if (*result/K != n) return false; |
0 | 590 return true; |
591 case '\0': | |
592 *result = n; | |
593 return true; | |
594 default: | |
595 return false; | |
596 } | |
597 } | |
598 | |
489
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599 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 600 if (size < min_size) return arg_too_small; |
601 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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602 if (size > max_uintx) return arg_too_big; |
0 | 603 return arg_in_range; |
604 } | |
605 | |
606 // Describe an argument out of range error | |
607 void Arguments::describe_range_error(ArgsRange errcode) { | |
608 switch(errcode) { | |
609 case arg_too_big: | |
610 jio_fprintf(defaultStream::error_stream(), | |
611 "The specified size exceeds the maximum " | |
612 "representable size.\n"); | |
613 break; | |
614 case arg_too_small: | |
615 case arg_unreadable: | |
616 case arg_in_range: | |
617 // do nothing for now | |
618 break; | |
619 default: | |
620 ShouldNotReachHere(); | |
621 } | |
622 } | |
623 | |
624 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
625 return CommandLineFlags::boolAtPut(name, &value, origin); | |
626 } | |
627 | |
628 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
629 double v; | |
630 if (sscanf(value, "%lf", &v) != 1) { | |
631 return false; | |
632 } | |
633 | |
634 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
635 return true; | |
636 } | |
637 return false; | |
638 } | |
639 | |
640 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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641 julong v; |
0 | 642 intx intx_v; |
643 bool is_neg = false; | |
489
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644 // Check the sign first since atomull() parses only unsigned values. |
0 | 645 if (*value == '-') { |
646 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
647 return false; | |
648 } | |
649 value++; | |
650 is_neg = true; | |
651 } | |
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652 if (!atomull(value, &v)) { |
0 | 653 return false; |
654 } | |
655 intx_v = (intx) v; | |
656 if (is_neg) { | |
657 intx_v = -intx_v; | |
658 } | |
659 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
660 return true; | |
661 } | |
662 uintx uintx_v = (uintx) v; | |
663 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
664 return true; | |
665 } | |
1064 | 666 uint64_t uint64_t_v = (uint64_t) v; |
667 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
668 return true; | |
669 } | |
0 | 670 return false; |
671 } | |
672 | |
673 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
674 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
675 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 676 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 677 return true; |
678 } | |
679 | |
680 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
681 const char* old_value = ""; | |
682 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
683 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
684 size_t new_len = strlen(new_value); | |
685 const char* value; | |
686 char* free_this_too = NULL; | |
687 if (old_len == 0) { | |
688 value = new_value; | |
689 } else if (new_len == 0) { | |
690 value = old_value; | |
691 } else { | |
6197 | 692 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 693 // each new setting adds another LINE to the switch: |
694 sprintf(buf, "%s\n%s", old_value, new_value); | |
695 value = buf; | |
696 free_this_too = buf; | |
697 } | |
698 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
699 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 700 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 701 if (free_this_too != NULL) { |
702 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 703 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 704 } |
705 return true; | |
706 } | |
707 | |
708 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
709 | |
710 // range of acceptable characters spelled out for portability reasons | |
711 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
712 #define BUFLEN 255 | |
713 char name[BUFLEN+1]; | |
714 char dummy; | |
715 | |
716 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
717 return set_bool_flag(name, false, origin); | |
718 } | |
719 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
720 return set_bool_flag(name, true, origin); | |
721 } | |
722 | |
723 char punct; | |
724 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
725 const char* value = strchr(arg, '=') + 1; | |
726 Flag* flag = Flag::find_flag(name, strlen(name)); | |
727 if (flag != NULL && flag->is_ccstr()) { | |
728 if (flag->ccstr_accumulates()) { | |
729 return append_to_string_flag(name, value, origin); | |
730 } else { | |
731 if (value[0] == '\0') { | |
732 value = NULL; | |
733 } | |
734 return set_string_flag(name, value, origin); | |
735 } | |
736 } | |
737 } | |
738 | |
739 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
740 const char* value = strchr(arg, '=') + 1; | |
741 // -XX:Foo:=xxx will reset the string flag to the given value. | |
742 if (value[0] == '\0') { | |
743 value = NULL; | |
744 } | |
745 return set_string_flag(name, value, origin); | |
746 } | |
747 | |
748 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
749 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
750 #define NUMBER_RANGE "[0123456789]" | |
751 char value[BUFLEN + 1]; | |
752 char value2[BUFLEN + 1]; | |
753 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
754 // Looks like a floating-point number -- try again with more lenient format string | |
755 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
756 return set_fp_numeric_flag(name, value, origin); | |
757 } | |
758 } | |
759 | |
760 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
761 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
762 return set_numeric_flag(name, value, origin); | |
763 } | |
764 | |
765 return false; | |
766 } | |
767 | |
768 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
769 assert(bldarray != NULL, "illegal argument"); | |
770 | |
771 if (arg == NULL) { | |
772 return; | |
773 } | |
774 | |
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775 int new_count = *count + 1; |
0 | 776 |
777 // expand the array and add arg to the last element | |
778 if (*bldarray == NULL) { | |
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779 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 780 } else { |
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781 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 782 } |
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783 (*bldarray)[*count] = strdup(arg); |
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784 *count = new_count; |
0 | 785 } |
786 | |
787 void Arguments::build_jvm_args(const char* arg) { | |
788 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
789 } | |
790 | |
791 void Arguments::build_jvm_flags(const char* arg) { | |
792 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
793 } | |
794 | |
795 // utility function to return a string that concatenates all | |
796 // strings in a given char** array | |
797 const char* Arguments::build_resource_string(char** args, int count) { | |
798 if (args == NULL || count == 0) { | |
799 return NULL; | |
800 } | |
801 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
802 for (int i = 1; i < count; i++) { | |
803 length += strlen(args[i]) + 1; // add 1 for a space | |
804 } | |
805 char* s = NEW_RESOURCE_ARRAY(char, length); | |
806 strcpy(s, args[0]); | |
807 for (int j = 1; j < count; j++) { | |
808 strcat(s, " "); | |
809 strcat(s, args[j]); | |
810 } | |
811 return (const char*) s; | |
812 } | |
813 | |
814 void Arguments::print_on(outputStream* st) { | |
815 st->print_cr("VM Arguments:"); | |
816 if (num_jvm_flags() > 0) { | |
817 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
818 } | |
819 if (num_jvm_args() > 0) { | |
820 st->print("jvm_args: "); print_jvm_args_on(st); | |
821 } | |
822 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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823 if (_java_class_path != NULL) { |
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824 char* path = _java_class_path->value(); |
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825 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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826 } |
0 | 827 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
828 } | |
829 | |
830 void Arguments::print_jvm_flags_on(outputStream* st) { | |
831 if (_num_jvm_flags > 0) { | |
832 for (int i=0; i < _num_jvm_flags; i++) { | |
833 st->print("%s ", _jvm_flags_array[i]); | |
834 } | |
835 st->print_cr(""); | |
836 } | |
837 } | |
838 | |
839 void Arguments::print_jvm_args_on(outputStream* st) { | |
840 if (_num_jvm_args > 0) { | |
841 for (int i=0; i < _num_jvm_args; i++) { | |
842 st->print("%s ", _jvm_args_array[i]); | |
843 } | |
844 st->print_cr(""); | |
845 } | |
846 } | |
847 | |
242 | 848 bool Arguments::process_argument(const char* arg, |
849 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
850 | |
851 JDK_Version since = JDK_Version(); | |
0 | 852 |
3250 | 853 if (parse_argument(arg, origin) || ignore_unrecognized) { |
854 return true; | |
0 | 855 } |
3250 | 856 |
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857 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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858 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 859 if (is_newly_obsolete(arg, &since)) { |
860 char version[256]; | |
861 since.to_string(version, sizeof(version)); | |
862 warning("ignoring option %s; support was removed in %s", argname, version); | |
863 return true; | |
864 } | |
865 | |
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866 // For locked flags, report a custom error message if available. |
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867 // Otherwise, report the standard unrecognized VM option. |
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868 |
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869 size_t arg_len; |
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870 const char* equal_sign = strchr(argname, '='); |
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871 if (equal_sign == NULL) { |
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872 arg_len = strlen(argname); |
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873 } else { |
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874 arg_len = equal_sign - argname; |
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875 } |
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876 |
11070 | 877 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true); |
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878 if (found_flag != NULL) { |
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879 char locked_message_buf[BUFLEN]; |
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880 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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881 if (strlen(locked_message_buf) == 0) { |
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882 if (found_flag->is_bool() && !has_plus_minus) { |
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883 jio_fprintf(defaultStream::error_stream(), |
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884 "Missing +/- setting for VM option '%s'\n", argname); |
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885 } else if (!found_flag->is_bool() && has_plus_minus) { |
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886 jio_fprintf(defaultStream::error_stream(), |
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887 "Unexpected +/- setting in VM option '%s'\n", argname); |
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888 } else { |
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889 jio_fprintf(defaultStream::error_stream(), |
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890 "Improperly specified VM option '%s'\n", argname); |
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891 } |
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892 } else { |
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893 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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894 } |
6017 | 895 } else { |
896 jio_fprintf(defaultStream::error_stream(), | |
897 "Unrecognized VM option '%s'\n", argname); | |
11070 | 898 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
899 if (fuzzy_matched != NULL) { | |
900 jio_fprintf(defaultStream::error_stream(), | |
901 "Did you mean '%s%s%s'?\n", | |
902 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
903 fuzzy_matched->name, | |
904 (fuzzy_matched->is_bool()) ? "" : "=<value>"); | |
905 } | |
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906 } |
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907 |
3250 | 908 // allow for commandline "commenting out" options like -XX:#+Verbose |
909 return arg[0] == '#'; | |
0 | 910 } |
911 | |
912 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
913 FILE* stream = fopen(file_name, "rb"); | |
914 if (stream == NULL) { | |
915 if (should_exist) { | |
916 jio_fprintf(defaultStream::error_stream(), | |
917 "Could not open settings file %s\n", file_name); | |
918 return false; | |
919 } else { | |
920 return true; | |
921 } | |
922 } | |
923 | |
924 char token[1024]; | |
925 int pos = 0; | |
926 | |
927 bool in_white_space = true; | |
928 bool in_comment = false; | |
929 bool in_quote = false; | |
930 char quote_c = 0; | |
931 bool result = true; | |
932 | |
933 int c = getc(stream); | |
6901 | 934 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 935 if (in_white_space) { |
936 if (in_comment) { | |
937 if (c == '\n') in_comment = false; | |
938 } else { | |
939 if (c == '#') in_comment = true; | |
940 else if (!isspace(c)) { | |
941 in_white_space = false; | |
942 token[pos++] = c; | |
943 } | |
944 } | |
945 } else { | |
946 if (c == '\n' || (!in_quote && isspace(c))) { | |
947 // token ends at newline, or at unquoted whitespace | |
948 // this allows a way to include spaces in string-valued options | |
949 token[pos] = '\0'; | |
950 logOption(token); | |
951 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
952 build_jvm_flags(token); | |
953 pos = 0; | |
954 in_white_space = true; | |
955 in_quote = false; | |
956 } else if (!in_quote && (c == '\'' || c == '"')) { | |
957 in_quote = true; | |
958 quote_c = c; | |
959 } else if (in_quote && (c == quote_c)) { | |
960 in_quote = false; | |
961 } else { | |
962 token[pos++] = c; | |
963 } | |
964 } | |
965 c = getc(stream); | |
966 } | |
967 if (pos > 0) { | |
968 token[pos] = '\0'; | |
969 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
970 build_jvm_flags(token); | |
971 } | |
972 fclose(stream); | |
973 return result; | |
974 } | |
975 | |
976 //============================================================================================================= | |
977 // Parsing of properties (-D) | |
978 | |
979 const char* Arguments::get_property(const char* key) { | |
980 return PropertyList_get_value(system_properties(), key); | |
981 } | |
982 | |
983 bool Arguments::add_property(const char* prop) { | |
984 const char* eq = strchr(prop, '='); | |
985 char* key; | |
986 // ns must be static--its address may be stored in a SystemProperty object. | |
987 const static char ns[1] = {0}; | |
988 char* value = (char *)ns; | |
989 | |
990 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 991 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 992 strncpy(key, prop, key_len); |
993 key[key_len] = '\0'; | |
994 | |
995 if (eq != NULL) { | |
996 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 997 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 998 strncpy(value, &prop[key_len + 1], value_len + 1); |
999 } | |
1000 | |
1001 if (strcmp(key, "java.compiler") == 0) { | |
1002 process_java_compiler_argument(value); | |
1003 FreeHeap(key); | |
1004 if (eq != NULL) { | |
1005 FreeHeap(value); | |
1006 } | |
1007 return true; | |
691 | 1008 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 1009 _java_command = value; |
1010 | |
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1011 // Record value in Arguments, but let it get passed to Java. |
691 | 1012 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 1013 // launcher.pid property is private and is processed |
1014 // in process_sun_java_launcher_properties(); | |
1015 // the sun.java.launcher property is passed on to the java application | |
1016 FreeHeap(key); | |
1017 if (eq != NULL) { | |
1018 FreeHeap(value); | |
1019 } | |
1020 return true; | |
691 | 1021 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 1022 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1023 // its value without going through the property list or making a Java call. | |
1024 _java_vendor_url_bug = value; | |
691 | 1025 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1026 PropertyList_unique_add(&_system_properties, key, value, true); | |
1027 return true; | |
0 | 1028 } |
1029 // Create new property and add at the end of the list | |
1030 PropertyList_unique_add(&_system_properties, key, value); | |
1031 return true; | |
1032 } | |
1033 | |
1034 //=========================================================================================================== | |
1035 // Setting int/mixed/comp mode flags | |
1036 | |
1037 void Arguments::set_mode_flags(Mode mode) { | |
1038 // Set up default values for all flags. | |
1039 // If you add a flag to any of the branches below, | |
1040 // add a default value for it here. | |
1041 set_java_compiler(false); | |
1042 _mode = mode; | |
1043 | |
1044 // Ensure Agent_OnLoad has the correct initial values. | |
1045 // This may not be the final mode; mode may change later in onload phase. | |
1046 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1047 (char*)VM_Version::vm_info_string(), false); |
0 | 1048 |
1049 UseInterpreter = true; | |
1050 UseCompiler = true; | |
1051 UseLoopCounter = true; | |
1052 | |
2458
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1053 #ifndef ZERO |
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1054 // Turn these off for mixed and comp. Leave them on for Zero. |
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1055 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1056 UseFastAccessorMethods = (mode == _int); |
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1057 } |
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1058 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1059 UseFastEmptyMethods = (mode == _int); |
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1060 } |
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1061 #endif |
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1062 |
0 | 1063 // Default values may be platform/compiler dependent - |
1064 // use the saved values | |
1065 ClipInlining = Arguments::_ClipInlining; | |
1066 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1067 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1068 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1069 | |
1070 // Change from defaults based on mode | |
1071 switch (mode) { | |
1072 default: | |
1073 ShouldNotReachHere(); | |
1074 break; | |
1075 case _int: | |
1076 UseCompiler = false; | |
1077 UseLoopCounter = false; | |
1078 AlwaysCompileLoopMethods = false; | |
1079 UseOnStackReplacement = false; | |
1080 break; | |
1081 case _mixed: | |
1082 // same as default | |
1083 break; | |
1084 case _comp: | |
1085 UseInterpreter = false; | |
1086 BackgroundCompilation = false; | |
1087 ClipInlining = false; | |
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1088 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1089 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1090 // compile a level 4 (C2) and then continue executing it. |
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1091 if (TieredCompilation) { |
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1092 Tier3InvokeNotifyFreqLog = 0; |
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1093 Tier4InvocationThreshold = 0; |
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1094 } |
0 | 1095 break; |
1096 } | |
1097 } | |
1098 | |
1099 // Conflict: required to use shared spaces (-Xshare:on), but | |
1100 // incompatible command line options were chosen. | |
1101 | |
1102 static void no_shared_spaces() { | |
1103 if (RequireSharedSpaces) { | |
1104 jio_fprintf(defaultStream::error_stream(), | |
1105 "Class data sharing is inconsistent with other specified options.\n"); | |
1106 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1107 } else { | |
1108 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1109 } | |
1110 } | |
1111 | |
1783 | 1112 void Arguments::set_tiered_flags() { |
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1113 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1114 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1115 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1116 } |
1117 if (CompilationPolicyChoice < 2) { | |
1118 vm_exit_during_initialization( | |
1119 "Incompatible compilation policy selected", NULL); | |
1120 } | |
1891
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1121 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1122 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
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1123 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1124 } |
10278 | 1125 if (!UseInterpreter) { // -Xcomp |
1126 Tier3InvokeNotifyFreqLog = 0; | |
1127 Tier4InvocationThreshold = 0; | |
1128 } | |
1783 | 1129 } |
1130 | |
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1131 #if INCLUDE_ALL_GCS |
4838 | 1132 static void disable_adaptive_size_policy(const char* collector_name) { |
1133 if (UseAdaptiveSizePolicy) { | |
1134 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1135 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1136 collector_name); | |
1137 } | |
1138 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1139 } | |
1140 } | |
1141 | |
0 | 1142 void Arguments::set_parnew_gc_flags() { |
1064 | 1143 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1144 "control point invariant"); |
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1145 assert(UseParNewGC, "Error"); |
0 | 1146 |
4838 | 1147 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1148 disable_adaptive_size_policy("UseParNewGC"); | |
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1149 |
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1150 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1151 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1152 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1153 } else if (ParallelGCThreads == 0) { |
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1154 jio_fprintf(defaultStream::error_stream(), |
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1155 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1156 vm_exit(1); |
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1157 } |
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1158 |
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1159 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1160 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1161 // we set them to 1024 and 1024. |
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1162 // See CR 6362902. |
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1163 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1164 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1165 } |
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1166 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1167 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1168 } |
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1169 |
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1170 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1171 // See CR 6362902. |
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1172 if (AlwaysTenure) { |
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1173 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1174 } |
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1175 // When using compressed oops, we use local overflow stacks, |
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1176 // rather than using a global overflow list chained through |
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1177 // the klass word of the object's pre-image. |
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1178 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1179 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1180 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1181 } |
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1182 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1183 } |
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1184 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1185 } |
1186 | |
1187 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1188 // sparc/solaris for certain applications, but would gain from | |
1189 // further optimization and tuning efforts, and would almost | |
1190 // certainly gain from analysis of platform and environment. | |
1191 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1192 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1193 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1194 |
0 | 1195 // If we are using CMS, we prefer to UseParNewGC, |
1196 // unless explicitly forbidden. | |
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1197 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1198 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1199 } |
1200 | |
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1201 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1202 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1203 |
1204 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1205 // as needed. | |
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1206 if (UseParNewGC) { |
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1207 set_parnew_gc_flags(); |
0 | 1208 } |
1209 | |
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1210 size_t max_heap = align_size_down(MaxHeapSize, |
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1211 CardTableRS::ct_max_alignment_constraint()); |
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1212 |
0 | 1213 // Now make adjustments for CMS |
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1214 intx tenuring_default = (intx)6; |
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1215 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1216 |
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1217 // Preferred young gen size for "short" pauses: |
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1218 // upper bound depends on # of threads and NewRatio. |
0 | 1219 const uintx parallel_gc_threads = |
1220 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1221 const size_t preferred_max_new_size_unaligned = | |
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1222 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1223 size_t preferred_max_new_size = |
0 | 1224 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1225 | |
1226 // Unless explicitly requested otherwise, size young gen | |
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1227 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
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1228 |
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1229 // If either MaxNewSize or NewRatio is set on the command line, |
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1230 // assume the user is trying to set the size of the young gen. |
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1231 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1232 |
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1233 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1234 // NewSize was set on the command line and it is larger than |
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1235 // preferred_max_new_size. |
0 | 1236 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1237 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1238 } else { |
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1239 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1240 } |
1064 | 1241 if (PrintGCDetails && Verbose) { |
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1242 // Too early to use gclog_or_tty |
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1243 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1244 } |
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1245 |
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1246 // Code along this path potentially sets NewSize and OldSize |
1064 | 1247 if (PrintGCDetails && Verbose) { |
13
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1248 // Too early to use gclog_or_tty |
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1249 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1250 " initial_heap_size: " SIZE_FORMAT |
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1251 " max_heap: " SIZE_FORMAT, |
1064 | 1252 min_heap_size(), InitialHeapSize, max_heap); |
13
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1253 } |
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1254 size_t min_new = preferred_max_new_size; |
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1255 if (FLAG_IS_CMDLINE(NewSize)) { |
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1256 min_new = NewSize; |
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1257 } |
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1258 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1259 // Unless explicitly requested otherwise, make young gen |
1260 // at least min_new, and at most preferred_max_new_size. | |
1261 if (FLAG_IS_DEFAULT(NewSize)) { | |
13
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1262 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1263 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1264 if (PrintGCDetails && Verbose) { |
13
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1265 // Too early to use gclog_or_tty |
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1266 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1267 } |
0 | 1268 } |
1269 // Unless explicitly requested otherwise, size old gen | |
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1270 // so it's NewRatio x of NewSize. |
0 | 1271 if (FLAG_IS_DEFAULT(OldSize)) { |
1272 if (max_heap > NewSize) { | |
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1273 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1274 if (PrintGCDetails && Verbose) { |
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1275 // Too early to use gclog_or_tty |
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1276 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
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1277 } |
0 | 1278 } |
1279 } | |
1280 } | |
1281 } | |
1282 // Unless explicitly requested otherwise, definitely | |
1283 // promote all objects surviving "tenuring_default" scavenges. | |
1284 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1285 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1286 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1287 } |
1288 // If we decided above (or user explicitly requested) | |
1289 // `promote all' (via MaxTenuringThreshold := 0), | |
1290 // prefer minuscule survivor spaces so as not to waste | |
1291 // space for (non-existent) survivors | |
1292 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1293 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1294 } |
1295 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1296 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1297 // This is done in order to make ParNew+CMS configuration to work | |
1298 // with YoungPLABSize and OldPLABSize options. | |
1299 // See CR 6362902. | |
1300 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1301 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1302 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1303 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1304 // the value (either from the command line or ergonomics) of |
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1305 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1306 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
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1307 } else { |
0 | 1308 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1309 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1310 // we'll let it to take precedence. | |
1311 jio_fprintf(defaultStream::error_stream(), | |
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1312 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1313 " options are specified for the CMS collector." |
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1314 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1315 } |
1316 } | |
1145
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1317 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1318 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1319 // unless it was manually specified. This is because a too-low value |
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1320 // will slow down scavenges. |
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1321 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1322 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1323 } |
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1324 } |
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1325 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1326 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1327 // If either of the static initialization defaults have changed, note this |
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1328 // modification. |
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1329 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1330 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1331 } |
1284 | 1332 if (PrintGCDetails && Verbose) { |
1333 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1334 MarkStackSize / K, MarkStackSizeMax / K); | |
1335 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1336 } | |
0 | 1337 } |
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1338 #endif // INCLUDE_ALL_GCS |
0 | 1339 |
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1340 void set_object_alignment() { |
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1341 // Object alignment. |
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1342 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1343 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1344 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1345 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1346 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1347 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1348 |
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1349 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1350 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1351 |
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1352 // Oop encoding heap max |
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1353 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1354 |
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1355 #if INCLUDE_ALL_GCS |
1571
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1356 // Set CMS global values |
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1357 CompactibleFreeListSpace::set_cms_values(); |
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1358 #endif // INCLUDE_ALL_GCS |
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1359 } |
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1360 |
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1361 bool verify_object_alignment() { |
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1362 // Object alignment. |
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1363 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1364 jio_fprintf(defaultStream::error_stream(), |
1829
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1365 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1366 (int)ObjectAlignmentInBytes); |
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1367 return false; |
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1368 } |
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1369 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1370 jio_fprintf(defaultStream::error_stream(), |
1829
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1371 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1372 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1373 return false; |
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1374 } |
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1375 // It does not make sense to have big object alignment |
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1376 // since a space lost due to alignment will be greater |
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1377 // then a saved space from compressed oops. |
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1378 if ((int)ObjectAlignmentInBytes > 256) { |
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1379 jio_fprintf(defaultStream::error_stream(), |
7461
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1380 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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1381 (int)ObjectAlignmentInBytes); |
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1382 return false; |
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1383 } |
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1384 // In case page size is very small. |
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1385 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1386 jio_fprintf(defaultStream::error_stream(), |
7461
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1387 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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|
1388 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1389 return false; |
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1390 } |
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1391 return true; |
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1392 } |
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1393 |
135
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1394 inline uintx max_heap_for_compressed_oops() { |
1963 | 1395 // Avoid sign flip. |
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1396 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
1963 | 1397 return 0; |
1398 } | |
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1399 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
1064 | 1400 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1401 } |
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1402 |
0 | 1403 bool Arguments::should_auto_select_low_pause_collector() { |
1404 if (UseAutoGCSelectPolicy && | |
1405 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1406 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1407 if (PrintGCDetails) { | |
1408 // Cannot use gclog_or_tty yet. | |
1409 tty->print_cr("Automatic selection of the low pause collector" | |
1410 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1411 } | |
1412 return true; | |
1413 } | |
1414 return false; | |
1415 } | |
1416 | |
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1417 void Arguments::set_use_compressed_oops() { |
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1418 #ifndef ZERO |
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1419 #ifdef _LP64 |
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1420 // MaxHeapSize is not set up properly at this point, but |
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1421 // the only value that can override MaxHeapSize if we are |
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1422 // to use UseCompressedOops is InitialHeapSize. |
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1423 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1424 |
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1425 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1426 #if !defined(COMPILER1) || defined(TIERED) |
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1427 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1428 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1429 } |
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1430 #endif |
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1431 #ifdef _WIN64 |
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1432 if (UseLargePages && UseCompressedOops) { |
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1433 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1434 // mode, when large pages are specified on windows. |
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1435 // This flag could be switched ON if narrow oop base address is set to 0, |
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1436 // see code in Universe::initialize_heap(). |
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1437 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1438 } |
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1439 #endif // _WIN64 |
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1440 } else { |
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1441 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1442 warning("Max heap size too large for Compressed Oops"); |
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1443 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1444 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1445 } |
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1446 } |
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1447 #endif // _LP64 |
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1448 #endif // ZERO |
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1449 } |
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1450 |
0 | 1451 void Arguments::set_ergonomics_flags() { |
1452 | |
4946 | 1453 if (os::is_server_class_machine()) { |
0 | 1454 // If no other collector is requested explicitly, |
1455 // let the VM select the collector based on | |
1456 // machine class and automatic selection policy. | |
1457 if (!UseSerialGC && | |
1458 !UseConcMarkSweepGC && | |
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1459 !UseG1GC && |
0 | 1460 !UseParNewGC && |
1461 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1462 if (should_auto_select_low_pause_collector()) { | |
1463 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1464 } else { | |
1465 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1466 } | |
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1467 } |
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1468 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1469 // to be disabled, which hurts interpreter performance and decreases |
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1470 // server performance. On server class machines, keep the default |
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1471 // off unless it is asked for. Future work: either add bytecode rewriting |
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1472 // at link time, or rewrite bytecodes in non-shared methods. |
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1473 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
0 | 1474 no_shared_spaces(); |
1475 } | |
1476 } | |
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1477 |
1010 | 1478 #ifndef ZERO |
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1479 #ifdef _LP64 |
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1480 set_use_compressed_oops(); |
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1481 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1482 if (!UseCompressedOops) { |
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1483 if (UseCompressedKlassPointers) { |
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1484 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1485 } |
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1486 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1487 } else { |
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1488 // Turn on UseCompressedKlassPointers too |
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1489 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1490 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1491 } |
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1492 // Set the ClassMetaspaceSize to something that will not need to be |
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1493 // expanded, since it cannot be expanded. |
7982
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1494 if (UseCompressedKlassPointers) { |
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1495 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
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1496 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
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1497 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1498 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
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1499 // 100,000 classes seems like a good size, so 100M assumes around 1K |
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1500 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
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1501 // size per klass. Eventually, this will be parameterized because it |
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1502 // would also be useful to determine the optimal size of the |
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1503 // systemDictionary. |
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1504 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
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1505 } |
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1506 } |
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1507 } |
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1508 // Also checks that certain machines are slower with compressed oops |
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1509 // in vm_version initialization code. |
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1510 #endif // _LP64 |
1010 | 1511 #endif // !ZERO |
0 | 1512 } |
1513 | |
1514 void Arguments::set_parallel_gc_flags() { | |
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1515 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1516 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1517 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1518 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1519 } |
4879 | 1520 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1521 |
1522 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1523 // of the physical memory, up to a maximum of 1GB. | |
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1524 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1525 Abstract_VM_Version::parallel_worker_threads()); |
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1526 if (ParallelGCThreads == 0) { |
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1527 jio_fprintf(defaultStream::error_stream(), |
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1528 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1529 vm_exit(1); |
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1530 } |
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1531 |
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1532 |
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1533 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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1534 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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1535 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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1536 // See CR 6362902 for details. |
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1537 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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1538 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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1539 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1540 } |
7471
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1541 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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1542 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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1543 } |
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1544 } |
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1545 |
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1546 if (UseParallelOldGC) { |
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1547 // Par compact uses lower default values since they are treated as |
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1548 // minimums. These are different defaults because of the different |
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1549 // interpretation and are not ergonomically set. |
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1550 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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1551 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1552 } |
1553 } | |
1554 } | |
1555 | |
342
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1556 void Arguments::set_g1_gc_flags() { |
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1557 assert(UseG1GC, "Error"); |
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1558 #ifdef COMPILER1 |
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1559 FastTLABRefill = false; |
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1560 #endif |
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1561 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1562 Abstract_VM_Version::parallel_worker_threads()); |
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1563 if (ParallelGCThreads == 0) { |
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1564 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1565 Abstract_VM_Version::parallel_worker_threads()); |
342
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1566 } |
751 | 1567 |
7397
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|
1568 // MarkStackSize will be set (if it hasn't been set by the user) |
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1569 // when concurrent marking is initialized. |
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1570 // Its value will be based upon the number of parallel marking threads. |
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1571 // But we do set the maximum mark stack size here. |
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1572 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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|
1573 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1574 } |
1356 | 1575 |
1576 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1577 // In G1, we want the default GC overhead goal to be higher than | |
1578 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1579 // be expanded more aggressively than we would like it to. In | |
1580 // fact, even 10% seems to not be high enough in some cases | |
1581 // (especially small GC stress tests that the main thing they do | |
1582 // is allocation). We might consider increase it further. | |
1583 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1584 } | |
7397
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|
1585 |
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1586 if (PrintGCDetails && Verbose) { |
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|
1587 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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|
1588 MarkStackSize / K, MarkStackSizeMax / K); |
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|
1589 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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1590 } |
342
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1591 } |
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1592 |
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1593 julong Arguments::limit_by_allocatable_memory(julong limit) { |
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1594 julong max_allocatable; |
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1595 julong result = limit; |
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1596 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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1597 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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1598 } |
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|
1599 return result; |
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|
1600 } |
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1601 |
10990
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1602 void Arguments::set_heap_base_min_address() { |
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1603 if (FLAG_IS_DEFAULT(HeapBaseMinAddress) && UseG1GC && HeapBaseMinAddress < 1*G) { |
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1604 // By default HeapBaseMinAddress is 2G on all platforms except Solaris x86. |
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1605 // G1 currently needs a lot of C-heap, so on Solaris we have to give G1 |
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|
1606 // some extra space for the C-heap compared to other collectors. |
11066
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|
1607 // Use FLAG_SET_DEFAULT here rather than FLAG_SET_ERGO to make sure that |
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|
1608 // code that checks for default values work correctly. |
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8017483: G1 tests fail with native OOME on Solaris x86 after HeapBaseMinAddress has been increased
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|
1609 FLAG_SET_DEFAULT(HeapBaseMinAddress, 1*G); |
10990
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|
1610 } |
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|
1611 } |
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|
1612 |
1064 | 1613 void Arguments::set_heap_size() { |
1614 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1615 // Deprecated flag | |
1616 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1617 } | |
1618 | |
1619 const julong phys_mem = | |
1620 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1621 : (julong)MaxRAM; | |
1622 | |
1623 // If the maximum heap size has not been set with -Xmx, | |
1624 // then set it as fraction of the size of physical memory, | |
1625 // respecting the maximum and minimum sizes of the heap. | |
342
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1626 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1627 julong reasonable_max = phys_mem / MaxRAMFraction; |
1628 | |
1629 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1630 // Small physical memory, so use a minimum fraction of it for the heap | |
1631 reasonable_max = phys_mem / MinRAMFraction; | |
1632 } else { | |
1633 // Not-small physical memory, so require a heap at least | |
1634 // as large as MaxHeapSize | |
1635 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1636 } | |
1637 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1638 // Limit the heap size to ErgoHeapSizeLimit | |
1639 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
342
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|
1640 } |
1064 | 1641 if (UseCompressedOops) { |
1642 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1643 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1644 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1645 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1646 // but it should be not less than default MaxHeapSize. | |
1647 max_coop_heap -= HeapBaseMinAddress; | |
1648 } | |
1649 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1650 } |
8854
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|
1651 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1652 |
1653 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1654 // An initial heap size was specified on the command line, | |
1655 // so be sure that the maximum size is consistent. Done | |
8854
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|
1656 // after call to limit_by_allocatable_memory because that |
1064 | 1657 // method might reduce the allocation size. |
1658 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1659 } | |
1660 | |
342
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|
1661 if (PrintGCDetails && Verbose) { |
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|
1662 // Cannot use gclog_or_tty yet. |
1064 | 1663 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1664 } |
1064 | 1665 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1666 } | |
1667 | |
10241
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|
1668 // If the minimum or initial heap_size have not been set or requested to be set |
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|
1669 // ergonomically, set them accordingly. |
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|
1670 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
84cb6f20afb3
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|
1671 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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|
1672 |
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|
1673 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1674 |
8854
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|
1675 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
84cb6f20afb3
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|
1676 |
10241
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|
1677 if (InitialHeapSize == 0) { |
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|
1678 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1679 |
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|
1680 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1681 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1682 |
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|
1683 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
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|
1684 |
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|
1685 if (PrintGCDetails && Verbose) { |
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|
1686 // Cannot use gclog_or_tty yet. |
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|
1687 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
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|
1688 } |
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|
1689 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
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|
1690 } |
10241
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|
1691 // If the minimum heap size has not been set (via -Xms), |
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|
1692 // synchronize with InitialHeapSize to avoid errors with the default value. |
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|
1693 if (min_heap_size() == 0) { |
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|
1694 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
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|
1695 if (PrintGCDetails && Verbose) { |
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|
1696 // Cannot use gclog_or_tty yet. |
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|
1697 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
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|
1698 } |
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|
1699 } |
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|
1700 } |
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|
1701 } |
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|
1702 |
0 | 1703 // This must be called after ergonomics because we want bytecode rewriting |
1704 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1705 void Arguments::set_bytecode_flags() { | |
1706 // Better not attempt to store into a read-only space. | |
1707 if (UseSharedSpaces) { | |
1708 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1709 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1710 } | |
1711 | |
1712 if (!RewriteBytecodes) { | |
1713 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1714 } | |
1715 } | |
1716 | |
1717 // Aggressive optimization flags -XX:+AggressiveOpts | |
1718 void Arguments::set_aggressive_opts_flags() { | |
17
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|
1719 #ifdef COMPILER2 |
10278 | 1720 if (AggressiveUnboxing) { |
1721 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1722 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1723 } else if (!EliminateAutoBox) { | |
1724 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1725 AggressiveUnboxing = false; | |
1726 } | |
1727 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1728 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1729 } else if (!DoEscapeAnalysis) { | |
1730 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1731 AggressiveUnboxing = false; | |
1732 } | |
1733 } | |
17
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|
1734 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
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|
1735 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
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0
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|
1736 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
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0
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|
1737 } |
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0
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|
1738 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
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parents:
0
diff
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|
1739 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
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0
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|
1740 } |
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|
1741 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1742 // 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
|
1743 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1744 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
|
1745 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1746 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1747 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1748 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1749 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1750 #endif |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1751 |
0 | 1752 if (AggressiveOpts) { |
61 | 1753 // Sample flag setting code |
1754 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1755 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1756 // } | |
0 | 1757 } |
1758 } | |
1759 | |
1760 //=========================================================================================================== | |
1761 // Parsing of java.compiler property | |
1762 | |
1763 void Arguments::process_java_compiler_argument(char* arg) { | |
1764 // For backwards compatibility, Djava.compiler=NONE or "" | |
1765 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1766 // is also specified. | |
1767 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1768 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1769 } | |
1770 } | |
1771 | |
1772 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1773 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1774 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1775 _created_by_gamma_launcher = true; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1776 } |
0 | 1777 } |
1778 | |
1779 bool Arguments::created_by_java_launcher() { | |
1780 assert(_sun_java_launcher != NULL, "property must have value"); | |
1781 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1782 } | |
1783 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1784 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1785 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1786 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1787 |
0 | 1788 //=========================================================================================================== |
1789 // Parsing of main arguments | |
1790 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1791 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
|
1792 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1793 // 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
|
1794 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1795 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1796 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1797 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1798 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1799 "%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
|
1800 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1801 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1802 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1803 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1804 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1805 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
|
1806 // 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
|
1807 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1808 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1809 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1810 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1811 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1812 "%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
|
1813 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1814 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1815 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1816 |
0 | 1817 bool Arguments::verify_percentage(uintx value, const char* name) { |
1818 if (value <= 100) { | |
1819 return true; | |
1820 } | |
1821 jio_fprintf(defaultStream::error_stream(), | |
1822 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1823 name, value); | |
1824 return false; | |
1825 } | |
1826 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1827 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1828 #ifdef ASSERT |
0 | 1829 static bool verify_serial_gc_flags() { |
1830 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1831 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1832 UseParallelGC || UseParallelOldGC)); |
0 | 1833 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1834 #endif // ASSERT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1835 #endif // INCLUDE_ALL_GCS |
0 | 1836 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1837 // check if do gclog rotation |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1838 // +UseGCLogFileRotation is a must, |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1839 // 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
|
1840 // 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
|
1841 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1842 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1843 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1844 (NumberOfGCLogFiles == 0) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1845 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1846 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
|
1847 "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
|
1848 "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
|
1849 "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
|
1850 UseGCLogFileRotation = false; |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1851 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1852 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1853 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1854 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1855 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
|
1856 jio_fprintf(defaultStream::output_stream(), |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1857 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1858 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1859 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1860 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1861 // Check consistency of GC selection |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1862 bool Arguments::check_gc_consistency() { |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1863 check_gclog_consistency(); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1864 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1865 // 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
|
1866 // 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
|
1867 // 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
|
1868 // 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
|
1869 // 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
|
1870 // 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
|
1871 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1872 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1873 if (UseSerialGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1874 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1875 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1876 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1877 if (i > 1) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1878 jio_fprintf(defaultStream::error_stream(), |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1879 "Conflicting collector combinations in option list; " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1880 "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
|
1881 "allowed\n"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1882 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1883 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1884 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1885 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1886 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1887 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1888 status = false; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1889 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1890 return status; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1891 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1892 |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1893 void Arguments::check_deprecated_gcs() { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1894 if (UseConcMarkSweepGC && !UseParNewGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1895 warning("Using the DefNew young collector with the CMS collector is deprecated " |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1896 "and will likely be removed in a future release"); |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1897 } |
e0ab18eafbde
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1898 |
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1899 if (UseParNewGC && !UseConcMarkSweepGC) { |
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1900 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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1901 // set up UseSerialGC properly, so that can't be used in the check here. |
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1902 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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1903 "and will likely be removed in a future release"); |
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1904 } |
7453 | 1905 |
1906 if (CMSIncrementalMode) { | |
1907 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1908 } | |
7452
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1909 } |
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1910 |
8734 | 1911 void Arguments::check_deprecated_gc_flags() { |
1912 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1913 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1914 "and will likely be removed in future release"); | |
1915 } | |
11977 | 1916 if (FLAG_IS_CMDLINE(DefaultMaxRAMFraction)) { |
1917 warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. " | |
1918 "Use MaxRAMFraction instead."); | |
1919 } | |
8734 | 1920 } |
1921 | |
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1922 // Check stack pages settings |
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1923 bool Arguments::check_stack_pages() |
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1924 { |
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1925 bool status = true; |
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1926 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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1927 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
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1928 // greater stack shadow pages can't generate instruction to bang stack |
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1929 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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1930 return status; |
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1931 } |
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1932 |
0 | 1933 // Check the consistency of vm_init_args |
1934 bool Arguments::check_vm_args_consistency() { | |
1935 // Method for adding checks for flag consistency. | |
1936 // The intent is to warn the user of all possible conflicts, | |
1937 // before returning an error. | |
1938 // Note: Needs platform-dependent factoring. | |
1939 bool status = true; | |
1940 | |
1941 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1942 // builds so the cost of stack banging can be measured. | |
1943 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1944 if (!UseBoundThreads && !UseStackBanging) { | |
1945 jio_fprintf(defaultStream::error_stream(), | |
1946 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1947 | |
1948 status = false; | |
1949 } | |
1950 #endif | |
1951 | |
1952 if (TLABRefillWasteFraction == 0) { | |
1953 jio_fprintf(defaultStream::error_stream(), | |
1954 "TLABRefillWasteFraction should be a denominator, " | |
1955 "not " SIZE_FORMAT "\n", | |
1956 TLABRefillWasteFraction); | |
1957 status = false; | |
1958 } | |
1959 | |
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1960 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 1961 "AdaptiveSizePolicyWeight"); |
10
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1962 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1963 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1964 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1965 |
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1966 // Divide by bucket size to prevent a large size from causing rollover when |
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1967 // calculating amount of memory needed to be allocated for the String table. |
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1968 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
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1969 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1970 |
0 | 1971 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1972 jio_fprintf(defaultStream::error_stream(), | |
1973 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1974 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1975 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1976 status = false; | |
1977 } | |
1978 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1979 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1980 | |
8040
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1981 // Min/MaxMetaspaceFreeRatio |
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1982 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1983 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1984 |
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1985 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1986 jio_fprintf(defaultStream::error_stream(), |
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1987 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1988 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1989 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1990 MinMetaspaceFreeRatio, |
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1991 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1992 MaxMetaspaceFreeRatio); |
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1993 status = false; |
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1994 } |
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1995 |
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1996 // Trying to keep 100% free is not practical |
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1997 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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1998 |
0 | 1999 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
2000 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
2001 } | |
2002 | |
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2003 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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2004 // Settings to encourage splitting. |
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2005 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 2006 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
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2007 } |
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2008 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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2009 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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2010 } |
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2011 } |
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2012 |
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2013 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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2014 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 2015 if (GCTimeLimit == 100) { |
2016 // Turn off gc-overhead-limit-exceeded checks | |
2017 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
2018 } | |
2019 | |
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2020 status = status && check_gc_consistency(); |
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2021 status = status && check_stack_pages(); |
0 | 2022 |
2023 if (CMSIncrementalMode) { | |
2024 if (!UseConcMarkSweepGC) { | |
2025 jio_fprintf(defaultStream::error_stream(), | |
2026 "error: invalid argument combination.\n" | |
2027 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2028 "selected in order\nto use CMSIncrementalMode.\n"); | |
2029 status = false; | |
2030 } else { | |
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2031 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2032 "CMSIncrementalDutyCycle"); |
10
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2033 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2034 "CMSIncrementalDutyCycleMin"); |
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2035 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2036 "CMSIncrementalSafetyFactor"); |
10
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2037 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2038 "CMSIncrementalOffset"); |
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2039 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2040 "CMSExpAvgFactor"); |
2041 // If it was not set on the command line, set | |
2042 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2043 if (CMSInitiatingOccupancyFraction < 0) { | |
2044 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2045 } | |
2046 } | |
2047 } | |
2048 | |
2049 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2050 // insists that we hold the requisite locks so that the iteration is | |
2051 // MT-safe. For the verification at start-up and shut-down, we don't | |
2052 // yet have a good way of acquiring and releasing these locks, | |
2053 // which are not visible at the CollectedHeap level. We want to | |
2054 // be able to acquire these locks and then do the iteration rather | |
2055 // than just disable the lock verification. This will be fixed under | |
2056 // bug 4788986. | |
2057 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
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2058 if (VerifyDuringStartup) { |
0 | 2059 warning("Heap verification at start-up disabled " |
2060 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
9071
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2061 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2062 } |
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2063 |
0 | 2064 if (VerifyBeforeExit) { |
2065 warning("Heap verification at shutdown disabled " | |
2066 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2067 VerifyBeforeExit = false; // Disable verification at shutdown | |
2068 } | |
2069 } | |
2070 | |
2071 // Note: only executed in non-PRODUCT mode | |
2072 if (!UseAsyncConcMarkSweepGC && | |
2073 (ExplicitGCInvokesConcurrent || | |
2074 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2075 jio_fprintf(defaultStream::error_stream(), | |
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2076 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2077 " with -UseAsyncConcMarkSweepGC"); |
2078 status = false; | |
2079 } | |
2080 | |
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2081 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
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2082 |
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2083 #if INCLUDE_ALL_GCS |
1283
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2084 if (UseG1GC) { |
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2085 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
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2086 "InitiatingHeapOccupancyPercent"); |
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2087 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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2088 "G1RefProcDrainInterval"); |
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2089 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
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2090 "G1ConcMarkStepDurationMillis"); |
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2091 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
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2092 "G1ConcRSHotCardLimit"); |
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2093 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
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2094 "G1ConcRSLogCacheSize"); |
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2095 } |
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2096 if (UseConcMarkSweepGC) { |
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2097 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
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2098 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
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2099 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
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2100 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
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2101 |
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2102 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
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10246
diff
changeset
|
2103 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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10246
diff
changeset
|
2104 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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diff
changeset
|
2105 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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diff
changeset
|
2106 status = status && verify_interval(CMS_FLSWeight, 0, 100, "CMS_FLSWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2107 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2108 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2109 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2110 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2111 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2112 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
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changeset
|
2113 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2114 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2115 status = status && verify_interval(CMSPrecleanNumerator, 0, CMSPrecleanDenominator - 1, "CMSPrecleanNumerator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2116 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2117 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2118 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2119 status = status && verify_min_value(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2120 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
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changeset
|
2121 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2122 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2123 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2124 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2125 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2126 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2127 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2128 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2129 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2130 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2131 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2132 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2133 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2134 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2135 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2136 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2137 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2138 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2139 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2140 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2141 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2142 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2143 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2144 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2145 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2146 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2147 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2148 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2149 // 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
|
2150 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2151 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2152 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2153 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2154 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
|
2155 |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2156 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
|
2157 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2158 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2159 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2160 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2161 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2162 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2163 status = status && verify_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2164 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2165 status = status && verify_min_value(HeapSizePerGCThread, (uintx) os::vm_page_size(), "HeapSizePerGCThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2166 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2167 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2168 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2169 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2170 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2171 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2172 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2173 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2174 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2175 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2176 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2177 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2178 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2179 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2180 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2181 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2182 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2183 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2184 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2185 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2186 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2187 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2188 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2189 // the "age" field in the oop header is 4 bits; do not want to pull in markOop.hpp |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2190 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2191 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2192 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2193 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2194 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2195 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2196 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2197 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2198 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2199 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2200 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2201 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2202 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2203 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2204 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2205 " 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
|
2206 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2207 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2208 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2209 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2210 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2211 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2212 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2213 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2214 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
|
2215 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2216 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2217 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2218 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2219 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
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6736
diff
changeset
|
2220 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
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10172
diff
changeset
|
2221 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
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10172
diff
changeset
|
2222 // 8K is well beyond the reasonable HW cache line size, even with the |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2223 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2224 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2225 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2226 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2227 "ContendedPaddingWidth=" INTX_FORMAT " must be the between %d and %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2228 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2229 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2230 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2231 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2232 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2233 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2234 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2235 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2236 "ContendedPaddingWidth=" INTX_FORMAT " must be the multiple of %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2237 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2238 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
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10172
diff
changeset
|
2239 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2240 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2241 // Check lower bounds of the code cache |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2242 // Template Interpreter code is approximately 3X larger in debug builds. |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2243 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2244 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2245 jio_fprintf(defaultStream::error_stream(), |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2246 "Invalid InitialCodeCacheSize=%dK. Must be at least %dK.\n", InitialCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2247 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2248 status = false; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2249 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2250 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2251 "Invalid ReservedCodeCacheSize: %dK. Must be at least InitialCodeCacheSize=%dK.\n", |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2252 ReservedCodeCacheSize/K, InitialCodeCacheSize/K); |
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2253 status = false; |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2254 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2255 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2256 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2257 min_code_cache_size/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2258 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2259 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2260 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2261 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2262 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2263 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2264 status = false; |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2265 } |
0 | 2266 return status; |
2267 } | |
2268 | |
2269 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2270 const char* option_type) { | |
2271 if (ignore) return false; | |
2272 | |
2273 const char* spacer = " "; | |
2274 if (option_type == NULL) { | |
2275 option_type = ++spacer; // Set both to the empty string. | |
2276 } | |
2277 | |
2278 if (os::obsolete_option(option)) { | |
2279 jio_fprintf(defaultStream::error_stream(), | |
2280 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2281 option->optionString); | |
2282 return false; | |
2283 } else { | |
2284 jio_fprintf(defaultStream::error_stream(), | |
2285 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2286 option->optionString); | |
2287 return true; | |
2288 } | |
2289 } | |
2290 | |
2291 static const char* user_assertion_options[] = { | |
2292 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2293 }; | |
2294 | |
2295 static const char* system_assertion_options[] = { | |
2296 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2297 }; | |
2298 | |
2299 // Return true if any of the strings in null-terminated array 'names' matches. | |
2300 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2301 // the option must match exactly. | |
2302 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2303 bool tail_allowed) { | |
2304 for (/* empty */; *names != NULL; ++names) { | |
2305 if (match_option(option, *names, tail)) { | |
2306 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2307 return true; | |
2308 } | |
2309 } | |
2310 } | |
2311 return false; | |
2312 } | |
2313 | |
1284 | 2314 bool Arguments::parse_uintx(const char* value, |
2315 uintx* uintx_arg, | |
2316 uintx min_size) { | |
2317 | |
2318 // Check the sign first since atomull() parses only unsigned values. | |
2319 bool value_is_positive = !(*value == '-'); | |
2320 | |
2321 if (value_is_positive) { | |
2322 julong n; | |
2323 bool good_return = atomull(value, &n); | |
2324 if (good_return) { | |
2325 bool above_minimum = n >= min_size; | |
2326 bool value_is_too_large = n > max_uintx; | |
2327 | |
2328 if (above_minimum && !value_is_too_large) { | |
2329 *uintx_arg = n; | |
2330 return true; | |
2331 } | |
2332 } | |
2333 } | |
2334 return false; | |
2335 } | |
2336 | |
0 | 2337 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
|
2338 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2339 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2340 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2341 return check_memory_size(*long_arg, min_size); |
2342 } | |
2343 | |
2344 // Parse JavaVMInitArgs structure | |
2345 | |
2346 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2347 // For components of the system classpath. | |
2348 SysClassPath scp(Arguments::get_sysclasspath()); | |
2349 bool scp_assembly_required = false; | |
2350 | |
2351 // Save default settings for some mode flags | |
2352 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2353 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2354 Arguments::_ClipInlining = ClipInlining; | |
2355 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2356 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2357 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2358 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2359 |
0 | 2360 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2361 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2362 if (result != JNI_OK) { | |
2363 return result; | |
2364 } | |
2365 | |
2366 // Parse JavaVMInitArgs structure passed in | |
2367 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2368 if (result != JNI_OK) { | |
2369 return result; | |
2370 } | |
2371 | |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2372 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2373 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2374 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2375 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2376 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2377 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
|
2378 strlen(altclasses_jar); |
6197 | 2379 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
|
2380 strcpy(altclasses_path, get_meta_index_dir()); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2381 strcat(altclasses_path, altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2382 scp.add_suffix_to_prefix(altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2383 scp_assembly_required = true; |
6197 | 2384 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2385 } |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2386 |
0 | 2387 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2388 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2389 if (result != JNI_OK) { | |
2390 return result; | |
2391 } | |
2392 | |
2393 // Do final processing now that all arguments have been parsed | |
2394 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2395 if (result != JNI_OK) { | |
2396 return result; | |
2397 } | |
2398 | |
2399 return JNI_OK; | |
2400 } | |
2401 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2402 // Checks if name in command-line argument -agent{lib,path}:name[=options] |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2403 // represents a valid HPROF of JDWP agent. is_path==true denotes that we |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2404 // are dealing with -agentpath (case where name is a path), otherwise with |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2405 // -agentlib |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2406 bool valid_hprof_or_jdwp_agent(char *name, bool is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2407 char *_name; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2408 const char *_hprof = "hprof", *_jdwp = "jdwp"; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2409 size_t _len_hprof, _len_jdwp, _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2410 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2411 if (is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2412 if ((_name = strrchr(name, (int) *os::file_separator())) == NULL) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2413 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2414 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2415 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2416 _name++; // skip past last path separator |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2417 _len_prefix = strlen(JNI_LIB_PREFIX); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2418 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2419 if (strncmp(_name, JNI_LIB_PREFIX, _len_prefix) != 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2420 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2421 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2422 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2423 _name += _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2424 _len_hprof = strlen(_hprof); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2425 _len_jdwp = strlen(_jdwp); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2426 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2427 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2428 _name += _len_hprof; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2429 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2430 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
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2431 _name += _len_jdwp; |
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|
2432 } |
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|
2433 else { |
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|
2434 return false; |
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diff
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|
2435 } |
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|
2436 |
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|
2437 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
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|
2438 return false; |
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diff
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|
2439 } |
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|
2440 |
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|
2441 return true; |
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diff
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|
2442 } |
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|
2443 |
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|
2444 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
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|
2445 return true; |
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diff
changeset
|
2446 } |
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|
2447 |
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changeset
|
2448 return false; |
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diff
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|
2449 } |
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|
2450 |
0 | 2451 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2452 SysClassPath* scp_p, | |
2453 bool* scp_assembly_required_p, | |
2454 FlagValueOrigin origin) { | |
2455 // Remaining part of option string | |
2456 const char* tail; | |
2457 | |
2458 // iterate over arguments | |
2459 for (int index = 0; index < args->nOptions; index++) { | |
2460 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2461 | |
2462 const JavaVMOption* option = args->options + index; | |
2463 | |
2464 if (!match_option(option, "-Djava.class.path", &tail) && | |
2465 !match_option(option, "-Dsun.java.command", &tail) && | |
2466 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2467 | |
2468 // add all jvm options to the jvm_args string. This string | |
2469 // is used later to set the java.vm.args PerfData string constant. | |
2470 // the -Djava.class.path and the -Dsun.java.command options are | |
2471 // omitted from jvm_args string as each have their own PerfData | |
2472 // string constant object. | |
2473 build_jvm_args(option->optionString); | |
2474 } | |
2475 | |
2476 // -verbose:[class/gc/jni] | |
2477 if (match_option(option, "-verbose", &tail)) { | |
2478 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2479 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2480 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2481 } else if (!strcmp(tail, ":gc")) { | |
2482 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2483 } else if (!strcmp(tail, ":jni")) { | |
2484 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2485 } | |
2486 // -da / -ea / -disableassertions / -enableassertions | |
2487 // These accept an optional class/package name separated by a colon, e.g., | |
2488 // -da:java.lang.Thread. | |
2489 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2490 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2491 if (*tail == '\0') { | |
2492 JavaAssertions::setUserClassDefault(enable); | |
2493 } else { | |
2494 assert(*tail == ':', "bogus match by match_option()"); | |
2495 JavaAssertions::addOption(tail + 1, enable); | |
2496 } | |
2497 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2498 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2499 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2500 JavaAssertions::setSystemClassDefault(enable); | |
2501 // -bootclasspath: | |
2502 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2503 scp_p->reset_path(tail); | |
2504 *scp_assembly_required_p = true; | |
2505 // -bootclasspath/a: | |
2506 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2507 scp_p->add_suffix(tail); | |
2508 *scp_assembly_required_p = true; | |
2509 // -bootclasspath/p: | |
2510 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2511 scp_p->add_prefix(tail); | |
2512 *scp_assembly_required_p = true; | |
2513 // -Xrun | |
2514 } else if (match_option(option, "-Xrun", &tail)) { | |
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2515 if (tail != NULL) { |
0 | 2516 const char* pos = strchr(tail, ':'); |
2517 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2518 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2519 name[len] = '\0'; |
2520 | |
2521 char *options = NULL; | |
2522 if(pos != NULL) { | |
2523 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2524 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2525 } |
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|
2526 #if !INCLUDE_JVMTI |
0 | 2527 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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|
2528 jio_fprintf(defaultStream::error_stream(), |
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2529 "Profiling and debugging agents are not supported in this VM\n"); |
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|
2530 return JNI_ERR; |
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diff
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|
2531 } |
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|
2532 #endif // !INCLUDE_JVMTI |
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jprovino
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8105
diff
changeset
|
2533 add_init_library(name, options); |
0 | 2534 } |
2535 // -agentlib and -agentpath | |
2536 } else if (match_option(option, "-agentlib:", &tail) || | |
2537 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2538 if(tail != NULL) { | |
2539 const char* pos = strchr(tail, '='); | |
2540 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2541 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2542 name[len] = '\0'; |
2543 | |
2544 char *options = NULL; | |
2545 if(pos != NULL) { | |
6197 | 2546 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2547 } |
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diff
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|
2548 #if !INCLUDE_JVMTI |
10170
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diff
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|
2549 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
8720
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|
2550 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
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8105
diff
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|
2551 "Profiling and debugging agents are not supported in this VM\n"); |
fad90b102190
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jprovino
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8105
diff
changeset
|
2552 return JNI_ERR; |
fad90b102190
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8105
diff
changeset
|
2553 } |
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6818
diff
changeset
|
2554 #endif // !INCLUDE_JVMTI |
0 | 2555 add_init_agent(name, options, is_absolute_path); |
2556 } | |
2557 // -javaagent | |
2558 } else if (match_option(option, "-javaagent:", &tail)) { | |
6854
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|
2559 #if !INCLUDE_JVMTI |
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diff
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|
2560 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
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|
2561 "Instrumentation agents are not supported in this VM\n"); |
fad90b102190
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diff
changeset
|
2562 return JNI_ERR; |
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|
2563 #else |
0 | 2564 if(tail != NULL) { |
6197 | 2565 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2566 add_init_agent("instrument", options, false); |
2567 } | |
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|
2568 #endif // !INCLUDE_JVMTI |
0 | 2569 // -Xnoclassgc |
2570 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2571 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2572 // -Xincgc: i-CMS | |
2573 } else if (match_option(option, "-Xincgc", &tail)) { | |
2574 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2575 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2576 // -Xnoincgc: no i-CMS | |
2577 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2578 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2579 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2580 // -Xconcgc | |
2581 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2582 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2583 // -Xnoconcgc | |
2584 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2585 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2586 // -Xbatch | |
2587 } else if (match_option(option, "-Xbatch", &tail)) { | |
2588 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2589 // -Xmn for compatibility with other JVM vendors | |
2590 } else if (match_option(option, "-Xmn", &tail)) { | |
489
2494ab195856
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483
diff
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|
2591 julong long_initial_eden_size = 0; |
0 | 2592 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2593 if (errcode != arg_in_range) { | |
2594 jio_fprintf(defaultStream::error_stream(), | |
2595 "Invalid initial eden size: %s\n", option->optionString); | |
2596 describe_range_error(errcode); | |
2597 return JNI_EINVAL; | |
2598 } | |
1064 | 2599 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2600 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2601 // -Xms |
2602 } else if (match_option(option, "-Xms", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
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483
diff
changeset
|
2603 julong long_initial_heap_size = 0; |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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10240
diff
changeset
|
2604 // an initial heap size of 0 means automatically determine |
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10240
diff
changeset
|
2605 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2606 if (errcode != arg_in_range) { |
2607 jio_fprintf(defaultStream::error_stream(), | |
2608 "Invalid initial heap size: %s\n", option->optionString); | |
2609 describe_range_error(errcode); | |
2610 return JNI_EINVAL; | |
2611 } | |
1064 | 2612 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2613 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2614 set_min_heap_size(InitialHeapSize); |
0 | 2615 // -Xmx |
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10240
diff
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|
2616 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
489
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|
2617 julong long_max_heap_size = 0; |
0 | 2618 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2619 if (errcode != arg_in_range) { | |
2620 jio_fprintf(defaultStream::error_stream(), | |
2621 "Invalid maximum heap size: %s\n", option->optionString); | |
2622 describe_range_error(errcode); | |
2623 return JNI_EINVAL; | |
2624 } | |
1064 | 2625 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2626 // Xmaxf |
2627 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2628 int maxf = (int)(atof(tail) * 100); | |
2629 if (maxf < 0 || maxf > 100) { | |
2630 jio_fprintf(defaultStream::error_stream(), | |
2631 "Bad max heap free percentage size: %s\n", | |
2632 option->optionString); | |
2633 return JNI_EINVAL; | |
2634 } else { | |
2635 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2636 } | |
2637 // Xminf | |
2638 } else if (match_option(option, "-Xminf", &tail)) { | |
2639 int minf = (int)(atof(tail) * 100); | |
2640 if (minf < 0 || minf > 100) { | |
2641 jio_fprintf(defaultStream::error_stream(), | |
2642 "Bad min heap free percentage size: %s\n", | |
2643 option->optionString); | |
2644 return JNI_EINVAL; | |
2645 } else { | |
2646 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2647 } | |
2648 // -Xss | |
2649 } else if (match_option(option, "-Xss", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
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483
diff
changeset
|
2650 julong long_ThreadStackSize = 0; |
0 | 2651 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2652 if (errcode != arg_in_range) { | |
2653 jio_fprintf(defaultStream::error_stream(), | |
2654 "Invalid thread stack size: %s\n", option->optionString); | |
2655 describe_range_error(errcode); | |
2656 return JNI_EINVAL; | |
2657 } | |
2658 // Internally track ThreadStackSize in units of 1024 bytes. | |
2659 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2660 round_to((int)long_ThreadStackSize, K) / K); | |
2661 // -Xoss | |
2662 } else if (match_option(option, "-Xoss", &tail)) { | |
2663 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2664 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2665 julong long_CodeCacheExpansionSize = 0; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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11006
diff
changeset
|
2666 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
738e04fb1232
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diff
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|
2667 if (errcode != arg_in_range) { |
738e04fb1232
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diff
changeset
|
2668 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2669 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
738e04fb1232
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diff
changeset
|
2670 os::vm_page_size()/K); |
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8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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diff
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|
2671 return JNI_EINVAL; |
738e04fb1232
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diff
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|
2672 } |
738e04fb1232
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diff
changeset
|
2673 FLAG_SET_CMDLINE(uintx, CodeCacheExpansionSize, (uintx)long_CodeCacheExpansionSize); |
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
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2002
diff
changeset
|
2674 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
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diff
changeset
|
2675 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
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483
diff
changeset
|
2676 julong long_ReservedCodeCacheSize = 0; |
11079
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anoll
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diff
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|
2677 |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
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10319
diff
changeset
|
2678 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2679 if (errcode != arg_in_range) { |
2680 jio_fprintf(defaultStream::error_stream(), | |
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anoll
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diff
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|
2681 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2682 return JNI_EINVAL; |
2683 } | |
2684 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
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2685 //-XX:IncreaseFirstTierCompileThresholdAt= |
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2686 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
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2687 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
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2688 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
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2689 jio_fprintf(defaultStream::error_stream(), |
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2690 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
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2691 option->optionString); |
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2692 return JNI_EINVAL; |
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2693 } |
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2694 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2695 // -green |
2696 } else if (match_option(option, "-green", &tail)) { | |
2697 jio_fprintf(defaultStream::error_stream(), | |
2698 "Green threads support not available\n"); | |
2699 return JNI_EINVAL; | |
2700 // -native | |
2701 } else if (match_option(option, "-native", &tail)) { | |
2702 // HotSpot always uses native threads, ignore silently for compatibility | |
2703 // -Xsqnopause | |
2704 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2705 // EVM option, ignore silently for compatibility | |
2706 // -Xrs | |
2707 } else if (match_option(option, "-Xrs", &tail)) { | |
2708 // Classic/EVM option, new functionality | |
2709 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2710 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2711 // change default internal VM signals used - lower case for back compat | |
2712 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2713 // -Xoptimize | |
2714 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2715 // EVM option, ignore silently for compatibility | |
2716 // -Xprof | |
2717 } else if (match_option(option, "-Xprof", &tail)) { | |
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2718 #if INCLUDE_FPROF |
0 | 2719 _has_profile = true; |
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2720 #else // INCLUDE_FPROF |
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2721 jio_fprintf(defaultStream::error_stream(), |
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2722 "Flat profiling is not supported in this VM.\n"); |
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2723 return JNI_ERR; |
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2724 #endif // INCLUDE_FPROF |
0 | 2725 // -Xconcurrentio |
2726 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2727 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2728 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2729 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2730 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2731 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2732 | |
2733 // -Xinternalversion | |
2734 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2735 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2736 VM_Version::internal_vm_info_string()); | |
2737 vm_exit(0); | |
2738 #ifndef PRODUCT | |
2739 // -Xprintflags | |
2740 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2741 CommandLineFlags::printFlags(tty, false); |
0 | 2742 vm_exit(0); |
2743 #endif | |
2744 // -D | |
2745 } else if (match_option(option, "-D", &tail)) { | |
2746 if (!add_property(tail)) { | |
2747 return JNI_ENOMEM; | |
2748 } | |
2749 // Out of the box management support | |
2750 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
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2751 #if INCLUDE_MANAGEMENT |
0 | 2752 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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2753 #else |
8720
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2754 jio_fprintf(defaultStream::output_stream(), |
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2755 "-Dcom.sun.management is not supported in this VM.\n"); |
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2756 return JNI_ERR; |
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2757 #endif |
0 | 2758 } |
2759 // -Xint | |
2760 } else if (match_option(option, "-Xint", &tail)) { | |
2761 set_mode_flags(_int); | |
2762 // -Xmixed | |
2763 } else if (match_option(option, "-Xmixed", &tail)) { | |
2764 set_mode_flags(_mixed); | |
2765 // -Xcomp | |
2766 } else if (match_option(option, "-Xcomp", &tail)) { | |
2767 // for testing the compiler; turn off all flags that inhibit compilation | |
2768 set_mode_flags(_comp); | |
2769 // -Xshare:dump | |
2770 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2771 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2772 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2773 // -Xshare:on | |
2774 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2775 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2776 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2777 // -Xshare:auto | |
2778 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2779 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2780 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2781 // -Xshare:off | |
2782 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2783 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2784 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2785 // -Xverify | |
2786 } else if (match_option(option, "-Xverify", &tail)) { | |
2787 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2788 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2789 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2790 } else if (strcmp(tail, ":remote") == 0) { | |
2791 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2792 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2793 } else if (strcmp(tail, ":none") == 0) { | |
2794 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2795 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2796 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2797 return JNI_EINVAL; | |
2798 } | |
2799 // -Xdebug | |
2800 } else if (match_option(option, "-Xdebug", &tail)) { | |
2801 // note this flag has been used, then ignore | |
2802 set_xdebug_mode(true); | |
2803 // -Xnoagent | |
2804 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2805 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2806 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2807 // Bind user level threads to kernel threads (Solaris only) | |
2808 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2809 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2810 // Redirect GC output to the file. -Xloggc:<filename> | |
2811 // ostream_init_log(), when called will use this filename | |
2812 // to initialize a fileStream. | |
2813 _gc_log_filename = strdup(tail); | |
2814 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2815 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2816 | |
2817 // JNI hooks | |
2818 } else if (match_option(option, "-Xcheck", &tail)) { | |
2819 if (!strcmp(tail, ":jni")) { | |
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2820 #if !INCLUDE_JNI_CHECK |
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2821 warning("JNI CHECKING is not supported in this VM"); |
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2822 #else |
0 | 2823 CheckJNICalls = true; |
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2824 #endif // INCLUDE_JNI_CHECK |
0 | 2825 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2826 "check")) { | |
2827 return JNI_EINVAL; | |
2828 } | |
2829 } else if (match_option(option, "vfprintf", &tail)) { | |
2830 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2831 } else if (match_option(option, "exit", &tail)) { | |
2832 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2833 } else if (match_option(option, "abort", &tail)) { | |
2834 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2835 // -XX:+AggressiveHeap | |
2836 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2837 | |
2838 // This option inspects the machine and attempts to set various | |
2839 // parameters to be optimal for long-running, memory allocation | |
2840 // intensive jobs. It is intended for machines with large | |
2841 // amounts of cpu and memory. | |
2842 | |
2843 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2844 // VM, but we may not be able to represent the total physical memory | |
2845 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2846 // Thus, we need to make sure we're using a julong for intermediate | |
2847 // calculations. | |
2848 julong initHeapSize; | |
2849 julong total_memory = os::physical_memory(); | |
2850 | |
2851 if (total_memory < (julong)256*M) { | |
2852 jio_fprintf(defaultStream::error_stream(), | |
2853 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2854 vm_exit(1); | |
2855 } | |
2856 | |
2857 // The heap size is half of available memory, or (at most) | |
2858 // all of possible memory less 160mb (leaving room for the OS | |
2859 // when using ISM). This is the maximum; because adaptive sizing | |
2860 // is turned on below, the actual space used may be smaller. | |
2861 | |
2862 initHeapSize = MIN2(total_memory / (julong)2, | |
2863 total_memory - (julong)160*M); | |
2864 | |
8854
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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|
2865 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2866 |
2867 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2868 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2869 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2870 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2871 set_min_heap_size(initHeapSize); |
0 | 2872 } |
2873 if (FLAG_IS_DEFAULT(NewSize)) { | |
2874 // Make the young generation 3/8ths of the total heap. | |
2875 FLAG_SET_CMDLINE(uintx, NewSize, | |
2876 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2877 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2878 } | |
2879 | |
6917
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2880 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2881 FLAG_SET_DEFAULT(UseLargePages, true); |
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2882 #endif |
0 | 2883 |
2884 // Increase some data structure sizes for efficiency | |
2885 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2886 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2887 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2888 | |
2889 // See the OldPLABSize comment below, but replace 'after promotion' | |
2890 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2891 // space per-gc-thread buffers. The default is 4kw. | |
2892 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2893 | |
2894 // OldPLABSize is the size of the buffers in the old gen that | |
2895 // UseParallelGC uses to promote live data that doesn't fit in the | |
2896 // survivor spaces. At any given time, there's one for each gc thread. | |
2897 // The default size is 1kw. These buffers are rarely used, since the | |
2898 // survivor spaces are usually big enough. For specjbb, however, there | |
2899 // are occasions when there's lots of live data in the young gen | |
2900 // and we end up promoting some of it. We don't have a definite | |
2901 // explanation for why bumping OldPLABSize helps, but the theory | |
2902 // is that a bigger PLAB results in retaining something like the | |
2903 // original allocation order after promotion, which improves mutator | |
2904 // locality. A minor effect may be that larger PLABs reduce the | |
2905 // number of PLAB allocation events during gc. The value of 8kw | |
2906 // was arrived at by experimenting with specjbb. | |
2907 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2908 | |
2909 // Enable parallel GC and adaptive generation sizing | |
2910 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
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2911 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2912 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2913 |
2914 // Encourage steady state memory management | |
2915 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2916 | |
2917 // This appears to improve mutator locality | |
2918 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2919 | |
2920 // Get around early Solaris scheduling bug | |
2921 // (affinity vs other jobs on system) | |
2922 // but disallow DR and offlining (5008695). | |
2923 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2924 | |
2925 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2926 // The last option must always win. | |
2927 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2928 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2929 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2930 // The last option must always win. | |
2931 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2932 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2933 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2934 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2935 jio_fprintf(defaultStream::error_stream(), | |
2936 "Please use CMSClassUnloadingEnabled in place of " | |
2937 "CMSPermGenSweepingEnabled in the future\n"); | |
2938 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2939 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2940 jio_fprintf(defaultStream::error_stream(), | |
2941 "Please use -XX:+UseGCOverheadLimit in place of " | |
2942 "-XX:+UseGCTimeLimit in the future\n"); | |
2943 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2944 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2945 jio_fprintf(defaultStream::error_stream(), | |
2946 "Please use -XX:-UseGCOverheadLimit in place of " | |
2947 "-XX:-UseGCTimeLimit in the future\n"); | |
2948 // The TLE options are for compatibility with 1.3 and will be | |
2949 // removed without notice in a future release. These options | |
2950 // are not to be documented. | |
2951 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2952 // No longer used. | |
2953 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2954 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2955 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2956 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2957 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2958 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2959 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2960 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2961 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2962 // No longer used. | |
2963 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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2964 julong long_tlab_size = 0; |
0 | 2965 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2966 if (errcode != arg_in_range) { | |
2967 jio_fprintf(defaultStream::error_stream(), | |
2968 "Invalid TLAB size: %s\n", option->optionString); | |
2969 describe_range_error(errcode); | |
2970 return JNI_EINVAL; | |
2971 } | |
2972 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2973 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2974 // No longer used. | |
2975 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2976 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2977 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2978 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2979 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2980 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2981 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2982 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2983 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2984 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2985 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2986 #if defined(DTRACE_ENABLED) |
0 | 2987 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2988 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2989 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2990 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2991 #else // defined(DTRACE_ENABLED) |
0 | 2992 jio_fprintf(defaultStream::error_stream(), |
4006 | 2993 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2994 return JNI_EINVAL; |
4006 | 2995 #endif // defined(DTRACE_ENABLED) |
0 | 2996 #ifdef ASSERT |
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|
2997 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2998 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2999 // disable scavenge before parallel mark-compact | |
3000 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3001 #endif | |
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|
3002 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 3003 julong cms_blocks_to_claim = (julong)atol(tail); |
3004 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
3005 jio_fprintf(defaultStream::error_stream(), | |
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3006 "Please use -XX:OldPLABSize in place of " |
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|
3007 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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changeset
|
3008 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3009 julong cms_blocks_to_claim = (julong)atol(tail); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3010 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3011 jio_fprintf(defaultStream::error_stream(), |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3012 "Please use -XX:OldPLABSize in place of " |
0 | 3013 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3014 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3015 julong old_plab_size = 0; |
0 | 3016 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
3017 if (errcode != arg_in_range) { | |
3018 jio_fprintf(defaultStream::error_stream(), | |
3019 "Invalid old PLAB size: %s\n", option->optionString); | |
3020 describe_range_error(errcode); | |
3021 return JNI_EINVAL; | |
3022 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3023 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 3024 jio_fprintf(defaultStream::error_stream(), |
3025 "Please use -XX:OldPLABSize in place of " | |
3026 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3027 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3028 julong young_plab_size = 0; |
0 | 3029 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3030 if (errcode != arg_in_range) { | |
3031 jio_fprintf(defaultStream::error_stream(), | |
3032 "Invalid young PLAB size: %s\n", option->optionString); | |
3033 describe_range_error(errcode); | |
3034 return JNI_EINVAL; | |
3035 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3036 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3037 jio_fprintf(defaultStream::error_stream(), |
3038 "Please use -XX:YoungPLABSize in place of " | |
3039 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3040 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3041 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3042 julong stack_size = 0; | |
3043 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3044 if (errcode != arg_in_range) { | |
3045 jio_fprintf(defaultStream::error_stream(), | |
3046 "Invalid mark stack size: %s\n", option->optionString); | |
3047 describe_range_error(errcode); | |
3048 return JNI_EINVAL; | |
3049 } | |
3050 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3051 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3052 julong max_stack_size = 0; | |
3053 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3054 if (errcode != arg_in_range) { | |
3055 jio_fprintf(defaultStream::error_stream(), | |
3056 "Invalid maximum mark stack size: %s\n", | |
3057 option->optionString); | |
3058 describe_range_error(errcode); | |
3059 return JNI_EINVAL; | |
3060 } | |
3061 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3062 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3063 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3064 uintx conc_threads = 0; | |
3065 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3066 jio_fprintf(defaultStream::error_stream(), | |
3067 "Invalid concurrent threads: %s\n", option->optionString); | |
3068 return JNI_EINVAL; | |
3069 } | |
3070 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3071 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3072 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3073 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
|
3074 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3075 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3076 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3077 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3078 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3079 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3080 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3081 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3082 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3083 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3084 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3085 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
|
3086 FLAG_SET_CMDLINE(bool, UseVMInterruptibleIO, true); |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3087 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3088 } else if (match_option(option, "-XX:+ManagementServer", &tail)) { |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3089 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3090 "ManagementServer is not supported in this VM.\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3091 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3092 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3093 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3094 // Skip -XX:Flags= since that case has already been handled |
3095 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3096 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3097 return JNI_EINVAL; | |
3098 } | |
3099 } | |
3100 // Unknown option | |
3101 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3102 return JNI_ERR; | |
3103 } | |
3104 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3105 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3106 // 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
|
3107 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3108 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3109 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3110 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3111 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3112 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3113 #endif // LINUX |
0 | 3114 return JNI_OK; |
3115 } | |
3116 | |
3117 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3118 // This must be done after all -D arguments have been processed. | |
3119 scp_p->expand_endorsed(); | |
3120 | |
3121 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3122 // Assemble the bootclasspath elements into the final path. | |
3123 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3124 } | |
3125 | |
3126 // This must be done after all arguments have been processed. | |
3127 // java_compiler() true means set to "NONE" or empty. | |
3128 if (java_compiler() && !xdebug_mode()) { | |
3129 // For backwards compatibility, we switch to interpreted mode if | |
3130 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3131 // not specified. | |
3132 set_mode_flags(_int); | |
3133 } | |
3134 if (CompileThreshold == 0) { | |
3135 set_mode_flags(_int); | |
3136 } | |
3137 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3138 // eventually fix up InitialTenuringThreshold if only MaxTenuringThreshold is set |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3139 if (FLAG_IS_DEFAULT(InitialTenuringThreshold) && (InitialTenuringThreshold > MaxTenuringThreshold)) { |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3140 FLAG_SET_ERGO(uintx, InitialTenuringThreshold, MaxTenuringThreshold); |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3141 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3142 |
0 | 3143 #ifndef COMPILER2 |
3144 // Don't degrade server performance for footprint | |
3145 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3146 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3147 // No need for large granularity pages w/small heaps. | |
3148 // Note that large pages are enabled/disabled for both the | |
3149 // Java heap and the code cache. | |
3150 FLAG_SET_DEFAULT(UseLargePages, false); | |
3151 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3152 |
0 | 3153 #else |
3154 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3155 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3156 } | |
3157 #endif | |
3158 | |
11999
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3159 #ifndef TIERED |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3160 // Tiered compilation is undefined. |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3161 UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation"); |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3162 #endif |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3163 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3164 // 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
|
3165 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3166 // 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
|
3167 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3168 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3169 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3170 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3171 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3172 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3173 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3174 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3175 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3176 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3177 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3178 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3179 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3180 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3181 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3182 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3183 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3184 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3185 |
0 | 3186 if (!check_vm_args_consistency()) { |
3187 return JNI_ERR; | |
3188 } | |
3189 | |
3190 return JNI_OK; | |
3191 } | |
3192 | |
3193 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3194 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3195 scp_assembly_required_p); | |
3196 } | |
3197 | |
3198 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3199 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3200 scp_assembly_required_p); | |
3201 } | |
3202 | |
3203 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3204 const int N_MAX_OPTIONS = 64; | |
3205 const int OPTION_BUFFER_SIZE = 1024; | |
3206 char buffer[OPTION_BUFFER_SIZE]; | |
3207 | |
3208 // The variable will be ignored if it exceeds the length of the buffer. | |
3209 // Don't check this variable if user has special privileges | |
3210 // (e.g. unix su command). | |
3211 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3212 !os::have_special_privileges()) { | |
3213 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3214 jio_fprintf(defaultStream::error_stream(), | |
3215 "Picked up %s: %s\n", name, buffer); | |
3216 char* rd = buffer; // pointer to the input string (rd) | |
3217 int i; | |
3218 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3219 while (isspace(*rd)) rd++; // skip whitespace | |
3220 if (*rd == 0) break; // we re done when the input string is read completely | |
3221 | |
3222 // The output, option string, overwrites the input string. | |
3223 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3224 // input string (rd). | |
3225 char* wrt = rd; | |
3226 | |
3227 options[i++].optionString = wrt; // Fill in option | |
3228 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3229 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3230 int quote = *rd; // matching quote to look for | |
3231 rd++; // don't copy open quote | |
3232 while (*rd != quote) { // include everything (even spaces) up until quote | |
3233 if (*rd == 0) { // string termination means unmatched string | |
3234 jio_fprintf(defaultStream::error_stream(), | |
3235 "Unmatched quote in %s\n", name); | |
3236 return JNI_ERR; | |
3237 } | |
3238 *wrt++ = *rd++; // copy to option string | |
3239 } | |
3240 rd++; // don't copy close quote | |
3241 } else { | |
3242 *wrt++ = *rd++; // copy to option string | |
3243 } | |
3244 } | |
3245 // Need to check if we're done before writing a NULL, | |
3246 // because the write could be to the byte that rd is pointing to. | |
3247 if (*rd++ == 0) { | |
3248 *wrt = 0; | |
3249 break; | |
3250 } | |
3251 *wrt = 0; // Zero terminate option | |
3252 } | |
3253 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3254 JavaVMInitArgs vm_args; | |
3255 vm_args.version = JNI_VERSION_1_2; | |
3256 vm_args.options = options; | |
3257 vm_args.nOptions = i; | |
564 | 3258 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3259 |
3260 if (PrintVMOptions) { | |
3261 const char* tail; | |
3262 for (int i = 0; i < vm_args.nOptions; i++) { | |
3263 const JavaVMOption *option = vm_args.options + i; | |
3264 if (match_option(option, "-XX:", &tail)) { | |
3265 logOption(tail); | |
3266 } | |
3267 } | |
3268 } | |
3269 | |
3270 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3271 } | |
3272 return JNI_OK; | |
3273 } | |
3274 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
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2302
diff
changeset
|
3275 void Arguments::set_shared_spaces_flags() { |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3276 #ifdef _LP64 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3277 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3278 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3279 // CompressedOops cannot be used with CDS. The offsets of oopmaps and |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3280 // static fields are incorrect in the archive. With some more clever |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
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10172
diff
changeset
|
3281 // initialization, this restriction can probably be lifted. |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3282 if (UseCompressedOops) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3283 if (must_share) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3284 warning("disabling compressed oops because of %s", |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3285 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3286 FLAG_SET_CMDLINE(bool, UseCompressedOops, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3287 FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3288 } else { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3289 // Prefer compressed oops to class data sharing |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3290 if (UseSharedSpaces && Verbose) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3291 warning("turning off use of shared archive because of compressed oops"); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3292 } |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3293 no_shared_spaces(); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3294 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3295 } |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3296 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3297 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3298 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3299 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3300 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
|
3301 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3302 UseSharedSpaces = false; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3303 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3304 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3305 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3306 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3307 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3308 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3309 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3310 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3311 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3312 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3313 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3314 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3315 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3316 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3317 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3318 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3319 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3320 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3321 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3322 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3323 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3324 os::jvm_path(jvm_path, sizeof(jvm_path)); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3325 char *end = strrchr(jvm_path, *os::file_separator()); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3326 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3327 size_t jvm_path_len = strlen(jvm_path); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3328 size_t file_sep_len = strlen(os::file_separator()); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3329 shared_archive_path = NEW_C_HEAP_ARRAY(char, jvm_path_len + |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3330 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3331 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3332 strncpy(shared_archive_path, jvm_path, jvm_path_len + 1); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3333 strncat(shared_archive_path, os::file_separator(), file_sep_len); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3334 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3335 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3336 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3337 shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(SharedArchiveFile) + 1, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3338 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3339 strncpy(shared_archive_path, SharedArchiveFile, strlen(SharedArchiveFile) + 1); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3340 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3341 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3342 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3343 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3344 |
0 | 3345 // Parse entry point called from JNI_CreateJavaVM |
3346 | |
3347 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3348 | |
3349 // Remaining part of option string | |
3350 const char* tail; | |
3351 | |
3352 // 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
|
3353 const char* hotspotrc = ".hotspotrc"; |
0 | 3354 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
|
3355 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
|
3356 |
564 | 3357 const char* flags_file; |
0 | 3358 int index; |
3359 for (index = 0; index < args->nOptions; index++) { | |
3360 const JavaVMOption *option = args->options + index; | |
3361 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3362 flags_file = tail; |
0 | 3363 settings_file_specified = true; |
3364 } | |
3365 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3366 PrintVMOptions = true; | |
3367 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3368 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
|
3369 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3370 } |
564 | 3371 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3372 IgnoreUnrecognizedVMOptions = true; | |
3373 } | |
3374 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3375 IgnoreUnrecognizedVMOptions = false; | |
3376 } | |
1150 | 3377 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3378 CommandLineFlags::printFlags(tty, false); |
1150 | 3379 vm_exit(0); |
3380 } | |
6197 | 3381 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3382 #if INCLUDE_NMT |
6197 | 3383 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3384 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3385 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3386 "Native Memory Tracking is not supported in this VM\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3387 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3388 #endif |
6197 | 3389 } |
3390 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3391 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3392 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3393 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3394 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3395 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3396 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3397 #endif |
564 | 3398 } |
3399 | |
3400 if (IgnoreUnrecognizedVMOptions) { | |
3401 // uncast const to modify the flag args->ignoreUnrecognized | |
3402 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3403 } | |
3404 | |
3405 // Parse specified settings file | |
3406 if (settings_file_specified) { | |
3407 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3408 return JNI_EINVAL; | |
3409 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3410 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3411 #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
|
3412 // Parse default .hotspotrc settings file |
0 | 3413 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3414 return JNI_EINVAL; | |
3415 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3416 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3417 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
|
3418 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
|
3419 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
|
3420 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
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6158
diff
changeset
|
3421 #endif |
0 | 3422 } |
3423 | |
3424 if (PrintVMOptions) { | |
3425 for (index = 0; index < args->nOptions; index++) { | |
3426 const JavaVMOption *option = args->options + index; | |
3427 if (match_option(option, "-XX:", &tail)) { | |
3428 logOption(tail); | |
3429 } | |
3430 } | |
3431 } | |
3432 | |
3433 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3434 jint result = parse_vm_init_args(args); | |
3435 if (result != JNI_OK) { | |
3436 return result; | |
3437 } | |
3438 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3439 // Call get_shared_archive_path() here, after possible SharedArchiveFile option got parsed. |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3440 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3441 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3442 return JNI_ENOMEM; |
f944ba972151
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hseigel
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10264
diff
changeset
|
3443 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3444 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3445 // 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
|
3446 // 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
|
3447 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
|
3448 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
|
3449 "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
|
3450 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3451 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3452 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3453 #ifdef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3454 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3455 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3456 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3457 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3458 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3459 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3460 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3461 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3462 |
0 | 3463 #ifndef PRODUCT |
3464 if (TraceBytecodesAt != 0) { | |
3465 TraceBytecodes = true; | |
3466 } | |
3467 if (CountCompiledCalls) { | |
3468 if (UseCounterDecay) { | |
3469 warning("UseCounterDecay disabled because CountCalls is set"); | |
3470 UseCounterDecay = false; | |
3471 } | |
3472 } | |
3473 #endif // PRODUCT | |
3474 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3475 // 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
|
3476 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3477 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3478 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3479 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
|
3480 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3481 EnableInvokeDynamic = false; |
710 | 3482 } |
3483 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3484 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3485 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3486 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3487 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
|
3488 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3489 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3490 } |
710 | 3491 |
0 | 3492 if (PrintGCDetails) { |
3493 // Turn on -verbose:gc options as well | |
3494 PrintGC = true; | |
3495 } | |
3496 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3497 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3498 // 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
|
3499 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3500 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3501 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3502 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3503 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3504 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3505 // 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
|
3506 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
|
3507 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3508 #if !INCLUDE_ALL_GCS |
1064 | 3509 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3510 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3511 #if !INCLUDE_CDS |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3512 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3513 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3514 "Shared spaces are not supported in this VM\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3515 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3516 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3517 if ((UseSharedSpaces && FLAG_IS_CMDLINE(UseSharedSpaces)) || PrintSharedSpaces) { |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3518 warning("Shared spaces are not supported in this VM"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3519 FLAG_SET_DEFAULT(UseSharedSpaces, false); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3520 FLAG_SET_DEFAULT(PrintSharedSpaces, false); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3521 } |
0 | 3522 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3523 #endif // INCLUDE_CDS |
0 | 3524 |
3525 // Set flags based on ergonomics. | |
3526 set_ergonomics_flags(); | |
3527 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3528 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3529 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3530 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3531 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3532 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3533 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3534 |
1783 | 3535 if (TieredCompilation) { |
3536 set_tiered_flags(); | |
3537 } else { | |
3538 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3539 if (CompilationPolicyChoice >= 2) { | |
3540 vm_exit_during_initialization( | |
3541 "Incompatible compilation policy selected", NULL); | |
3542 } | |
3543 } | |
3544 | |
10990
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3545 set_heap_base_min_address(); |
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3546 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3547 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3548 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3549 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3550 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3551 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3552 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3553 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3554 } 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
|
3555 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3556 } 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
|
3557 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3558 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3559 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3560 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3561 check_deprecated_gcs(); |
8734 | 3562 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3563 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3564 if (FLAG_IS_DEFAULT(ParallelGCThreads) && ParallelGCThreads == 1) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3565 warning("If the number of processors is expected to increase from one, then" |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3566 " you should configure the number of parallel GC threads appropriately" |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3567 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3568 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3569 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3570 #else // INCLUDE_ALL_GCS |
0 | 3571 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3572 #endif // INCLUDE_ALL_GCS |
0 | 3573 |
3574 // Set bytecode rewriting flags | |
3575 set_bytecode_flags(); | |
3576 | |
3577 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3578 set_aggressive_opts_flags(); | |
3579 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3580 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3581 // 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
|
3582 // biased locking. |
2331 | 3583 if (UseHeavyMonitors |
3584 #ifdef COMPILER1 | |
3585 || !UseFastLocking | |
3586 #endif // COMPILER1 | |
3587 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3588 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3589 // 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
|
3590 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3591 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3592 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3593 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3594 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3595 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3596 |
0 | 3597 #ifdef CC_INTERP |
1131 | 3598 // Clear flags not supported by the C++ interpreter |
3599 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3600 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3601 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3602 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3603 #endif // CC_INTERP |
3604 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3605 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3606 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3607 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3608 } |
4777 | 3609 if (!EliminateLocks) { |
3610 EliminateNestedLocks = false; | |
3611 } | |
7473 | 3612 if (!Inline) { |
3613 IncrementalInline = false; | |
3614 } | |
3615 #ifndef PRODUCT | |
3616 if (!IncrementalInline) { | |
3617 AlwaysIncrementalInline = false; | |
3618 } | |
3619 #endif | |
3620 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3621 // incremental inlining: bump MaxNodeLimit | |
3622 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3623 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3624 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3625 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3626 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3627 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
|
3628 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3629 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3630 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3631 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3632 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3633 // 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
|
3634 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3635 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3636 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3637 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3638 #endif |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3639 |
0 | 3640 if (PrintCommandLineFlags) { |
4773 | 3641 CommandLineFlags::printSetFlags(tty); |
0 | 3642 } |
3643 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3644 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3645 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3646 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3647 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3648 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3649 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3650 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3651 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3652 // 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
|
3653 // 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
|
3654 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
|
3655 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3656 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3657 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3658 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3659 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3660 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3661 |
0 | 3662 return JNI_OK; |
3663 } | |
3664 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3665 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3666 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3667 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3668 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3669 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3670 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3671 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3672 // For those collectors or operating systems (eg, Windows) that do |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3673 // not support full UseNUMA, we will map to UseNUMAInterleaving for now |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3674 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3675 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3676 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3677 #endif // INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3678 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3679 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3680 |
0 | 3681 int Arguments::PropertyList_count(SystemProperty* pl) { |
3682 int count = 0; | |
3683 while(pl != NULL) { | |
3684 count++; | |
3685 pl = pl->next(); | |
3686 } | |
3687 return count; | |
3688 } | |
3689 | |
3690 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3691 assert(key != NULL, "just checking"); | |
3692 SystemProperty* prop; | |
3693 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3694 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3695 } | |
3696 return NULL; | |
3697 } | |
3698 | |
3699 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3700 int count = 0; | |
3701 const char* ret_val = NULL; | |
3702 | |
3703 while(pl != NULL) { | |
3704 if(count >= index) { | |
3705 ret_val = pl->key(); | |
3706 break; | |
3707 } | |
3708 count++; | |
3709 pl = pl->next(); | |
3710 } | |
3711 | |
3712 return ret_val; | |
3713 } | |
3714 | |
3715 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3716 int count = 0; | |
3717 char* ret_val = NULL; | |
3718 | |
3719 while(pl != NULL) { | |
3720 if(count >= index) { | |
3721 ret_val = pl->value(); | |
3722 break; | |
3723 } | |
3724 count++; | |
3725 pl = pl->next(); | |
3726 } | |
3727 | |
3728 return ret_val; | |
3729 } | |
3730 | |
3731 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3732 SystemProperty* p = *plist; | |
3733 if (p == NULL) { | |
3734 *plist = new_p; | |
3735 } else { | |
3736 while (p->next() != NULL) { | |
3737 p = p->next(); | |
3738 } | |
3739 p->set_next(new_p); | |
3740 } | |
3741 } | |
3742 | |
3743 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3744 if (plist == NULL) | |
3745 return; | |
3746 | |
3747 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3748 PropertyList_add(plist, new_p); | |
3749 } | |
3750 | |
3751 // This add maintains unique property key in the list. | |
691 | 3752 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3753 if (plist == NULL) |
3754 return; | |
3755 | |
3756 // If property key exist then update with new value. | |
3757 SystemProperty* prop; | |
3758 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3759 if (strcmp(k, prop->key()) == 0) { | |
691 | 3760 if (append) { |
3761 prop->append_value(v); | |
3762 } else { | |
3763 prop->set_value(v); | |
3764 } | |
0 | 3765 return; |
3766 } | |
3767 } | |
3768 | |
3769 PropertyList_add(plist, k, v); | |
3770 } | |
3771 | |
3772 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3773 // Returns true if all of the source pointed by src has been copied over to | |
3774 // the destination buffer pointed by buf. Otherwise, returns false. | |
3775 // Notes: | |
3776 // 1. If the length (buflen) of the destination buffer excluding the | |
3777 // NULL terminator character is not long enough for holding the expanded | |
3778 // pid characters, it also returns false instead of returning the partially | |
3779 // expanded one. | |
3780 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3781 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3782 char* buf, size_t buflen) { | |
3783 const char* p = src; | |
3784 char* b = buf; | |
3785 const char* src_end = &src[srclen]; | |
3786 char* buf_end = &buf[buflen - 1]; | |
3787 | |
3788 while (p < src_end && b < buf_end) { | |
3789 if (*p == '%') { | |
3790 switch (*(++p)) { | |
3791 case '%': // "%%" ==> "%" | |
3792 *b++ = *p++; | |
3793 break; | |
3794 case 'p': { // "%p" ==> current process id | |
3795 // buf_end points to the character before the last character so | |
3796 // that we could write '\0' to the end of the buffer. | |
3797 size_t buf_sz = buf_end - b + 1; | |
3798 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3799 | |
3800 // if jio_snprintf fails or the buffer is not long enough to hold | |
3801 // the expanded pid, returns false. | |
3802 if (ret < 0 || ret >= (int)buf_sz) { | |
3803 return false; | |
3804 } else { | |
3805 b += ret; | |
3806 assert(*b == '\0', "fail in copy_expand_pid"); | |
3807 if (p == src_end && b == buf_end + 1) { | |
3808 // reach the end of the buffer. | |
3809 return true; | |
3810 } | |
3811 } | |
3812 p++; | |
3813 break; | |
3814 } | |
3815 default : | |
3816 *b++ = '%'; | |
3817 } | |
3818 } else { | |
3819 *b++ = *p++; | |
3820 } | |
3821 } | |
3822 *b = '\0'; | |
3823 return (p == src_end); // return false if not all of the source was copied | |
3824 } |