Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/arguments.cpp @ 12106:739c309fd729
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Reviewed-by: acorn, sla
author | mgronlun |
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date | Fri, 23 Aug 2013 10:36:34 +0200 |
parents | 740e263c80c6 |
children | 58fc8e2b7b6d 4a1efab850f4 a701c16e8bbf e2722a66aba7 |
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 assert(OopEncodingHeapMax > (uint64_t)os::vm_page_size(), "Unusual page size"); |
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1397 LP64_ONLY(return OopEncodingHeapMax - os::vm_page_size()); |
1064 | 1398 NOT_LP64(ShouldNotReachHere(); return 0); |
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1399 } |
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1400 |
0 | 1401 bool Arguments::should_auto_select_low_pause_collector() { |
1402 if (UseAutoGCSelectPolicy && | |
1403 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1404 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1405 if (PrintGCDetails) { | |
1406 // Cannot use gclog_or_tty yet. | |
1407 tty->print_cr("Automatic selection of the low pause collector" | |
1408 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1409 } | |
1410 return true; | |
1411 } | |
1412 return false; | |
1413 } | |
1414 | |
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1415 void Arguments::set_use_compressed_oops() { |
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1416 #ifndef ZERO |
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1417 #ifdef _LP64 |
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1418 // MaxHeapSize is not set up properly at this point, but |
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1419 // the only value that can override MaxHeapSize if we are |
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1420 // to use UseCompressedOops is InitialHeapSize. |
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1421 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1422 |
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1423 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1424 #if !defined(COMPILER1) || defined(TIERED) |
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1425 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1426 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1427 } |
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1428 #endif |
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1429 #ifdef _WIN64 |
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1430 if (UseLargePages && UseCompressedOops) { |
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1431 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1432 // mode, when large pages are specified on windows. |
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1433 // This flag could be switched ON if narrow oop base address is set to 0, |
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1434 // see code in Universe::initialize_heap(). |
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1435 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1436 } |
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1437 #endif // _WIN64 |
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1438 } else { |
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1439 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1440 warning("Max heap size too large for Compressed Oops"); |
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1441 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1442 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1443 } |
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1444 } |
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1445 #endif // _LP64 |
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1446 #endif // ZERO |
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1447 } |
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1448 |
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1449 |
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1450 // NOTE: set_use_compressed_klass_ptrs() must be called after calling |
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1451 // set_use_compressed_oops(). |
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1452 void Arguments::set_use_compressed_klass_ptrs() { |
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1453 #ifndef ZERO |
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1454 #ifdef _LP64 |
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1455 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1456 if (!UseCompressedOops) { |
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1457 if (UseCompressedKlassPointers) { |
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1458 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1459 } |
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1460 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1461 } else { |
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1462 // Turn on UseCompressedKlassPointers too |
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1463 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1464 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1465 } |
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1466 // Check the ClassMetaspaceSize to make sure we use compressed klass ptrs. |
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1467 if (UseCompressedKlassPointers) { |
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1468 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
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1469 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
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1470 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1471 } |
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1472 } |
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1473 } |
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1474 #endif // _LP64 |
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1475 #endif // !ZERO |
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1476 } |
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1477 |
0 | 1478 void Arguments::set_ergonomics_flags() { |
1479 | |
4946 | 1480 if (os::is_server_class_machine()) { |
0 | 1481 // If no other collector is requested explicitly, |
1482 // let the VM select the collector based on | |
1483 // machine class and automatic selection policy. | |
1484 if (!UseSerialGC && | |
1485 !UseConcMarkSweepGC && | |
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1486 !UseG1GC && |
0 | 1487 !UseParNewGC && |
1488 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1489 if (should_auto_select_low_pause_collector()) { | |
1490 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1491 } else { | |
1492 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1493 } | |
6725
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1494 } |
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1495 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1496 // to be disabled, which hurts interpreter performance and decreases |
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1497 // server performance. On server class machines, keep the default |
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1498 // off unless it is asked for. Future work: either add bytecode rewriting |
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1499 // at link time, or rewrite bytecodes in non-shared methods. |
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1500 if (!DumpSharedSpaces && !RequireSharedSpaces && |
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1501 (FLAG_IS_DEFAULT(UseSharedSpaces) || !UseSharedSpaces)) { |
0 | 1502 no_shared_spaces(); |
1503 } | |
1504 } | |
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1505 |
1010 | 1506 #ifndef ZERO |
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1507 #ifdef _LP64 |
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1508 set_use_compressed_oops(); |
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1509 |
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1510 // set_use_compressed_klass_ptrs() must be called after calling |
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1511 // set_use_compressed_oops(). |
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1512 set_use_compressed_klass_ptrs(); |
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1513 |
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1514 // Also checks that certain machines are slower with compressed oops |
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1515 // in vm_version initialization code. |
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1516 #endif // _LP64 |
1010 | 1517 #endif // !ZERO |
0 | 1518 } |
1519 | |
1520 void Arguments::set_parallel_gc_flags() { | |
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1521 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1522 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1523 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1524 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1525 } |
4879 | 1526 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1527 |
1528 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1529 // of the physical memory, up to a maximum of 1GB. | |
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1530 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1531 Abstract_VM_Version::parallel_worker_threads()); |
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1532 if (ParallelGCThreads == 0) { |
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1533 jio_fprintf(defaultStream::error_stream(), |
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1534 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1535 vm_exit(1); |
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1536 } |
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1537 |
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1538 |
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1539 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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1540 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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1541 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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1542 // See CR 6362902 for details. |
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1543 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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1544 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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1545 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1546 } |
7471
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1547 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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1548 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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1549 } |
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1550 } |
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1551 |
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1552 if (UseParallelOldGC) { |
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1553 // Par compact uses lower default values since they are treated as |
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|
1554 // minimums. These are different defaults because of the different |
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1555 // interpretation and are not ergonomically set. |
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|
1556 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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1557 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1558 } |
1559 } | |
1560 } | |
1561 | |
342
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1562 void Arguments::set_g1_gc_flags() { |
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1563 assert(UseG1GC, "Error"); |
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1564 #ifdef COMPILER1 |
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1565 FastTLABRefill = false; |
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1566 #endif |
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1567 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1568 Abstract_VM_Version::parallel_worker_threads()); |
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1569 if (ParallelGCThreads == 0) { |
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1570 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1571 Abstract_VM_Version::parallel_worker_threads()); |
342
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1572 } |
751 | 1573 |
7397
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1574 // MarkStackSize will be set (if it hasn't been set by the user) |
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1575 // when concurrent marking is initialized. |
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1576 // Its value will be based upon the number of parallel marking threads. |
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1577 // But we do set the maximum mark stack size here. |
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1578 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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1579 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1580 } |
1356 | 1581 |
1582 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1583 // In G1, we want the default GC overhead goal to be higher than | |
1584 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1585 // be expanded more aggressively than we would like it to. In | |
1586 // fact, even 10% seems to not be high enough in some cases | |
1587 // (especially small GC stress tests that the main thing they do | |
1588 // is allocation). We might consider increase it further. | |
1589 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1590 } | |
7397
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|
1591 |
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1592 if (PrintGCDetails && Verbose) { |
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1593 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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1594 MarkStackSize / K, MarkStackSizeMax / K); |
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1595 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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1596 } |
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1597 } |
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1598 |
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1599 julong Arguments::limit_by_allocatable_memory(julong limit) { |
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1600 julong max_allocatable; |
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1601 julong result = limit; |
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1602 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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1603 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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1604 } |
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1605 return result; |
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|
1606 } |
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1607 |
10990
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1608 void Arguments::set_heap_base_min_address() { |
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1609 if (FLAG_IS_DEFAULT(HeapBaseMinAddress) && UseG1GC && HeapBaseMinAddress < 1*G) { |
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1610 // By default HeapBaseMinAddress is 2G on all platforms except Solaris x86. |
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1611 // G1 currently needs a lot of C-heap, so on Solaris we have to give G1 |
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|
1612 // some extra space for the C-heap compared to other collectors. |
11066
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|
1613 // Use FLAG_SET_DEFAULT here rather than FLAG_SET_ERGO to make sure that |
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|
1614 // code that checks for default values work correctly. |
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|
1615 FLAG_SET_DEFAULT(HeapBaseMinAddress, 1*G); |
10990
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|
1616 } |
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|
1617 } |
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|
1618 |
1064 | 1619 void Arguments::set_heap_size() { |
1620 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1621 // Deprecated flag | |
1622 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1623 } | |
1624 | |
1625 const julong phys_mem = | |
1626 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1627 : (julong)MaxRAM; | |
1628 | |
1629 // If the maximum heap size has not been set with -Xmx, | |
1630 // then set it as fraction of the size of physical memory, | |
1631 // respecting the maximum and minimum sizes of the heap. | |
342
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1632 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1633 julong reasonable_max = phys_mem / MaxRAMFraction; |
1634 | |
1635 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1636 // Small physical memory, so use a minimum fraction of it for the heap | |
1637 reasonable_max = phys_mem / MinRAMFraction; | |
1638 } else { | |
1639 // Not-small physical memory, so require a heap at least | |
1640 // as large as MaxHeapSize | |
1641 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1642 } | |
1643 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1644 // Limit the heap size to ErgoHeapSizeLimit | |
1645 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
342
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|
1646 } |
1064 | 1647 if (UseCompressedOops) { |
1648 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1649 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1650 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1651 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1652 // but it should be not less than default MaxHeapSize. | |
1653 max_coop_heap -= HeapBaseMinAddress; | |
1654 } | |
1655 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1656 } |
8854
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|
1657 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1658 |
1659 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1660 // An initial heap size was specified on the command line, | |
1661 // so be sure that the maximum size is consistent. Done | |
8854
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|
1662 // after call to limit_by_allocatable_memory because that |
1064 | 1663 // method might reduce the allocation size. |
1664 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1665 } | |
1666 | |
342
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1667 if (PrintGCDetails && Verbose) { |
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|
1668 // Cannot use gclog_or_tty yet. |
1064 | 1669 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1670 } |
1064 | 1671 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1672 } | |
1673 | |
10241
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|
1674 // If the minimum or initial heap_size have not been set or requested to be set |
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|
1675 // ergonomically, set them accordingly. |
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|
1676 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
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|
1677 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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|
1678 |
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|
1679 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1680 |
8854
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|
1681 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
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|
1682 |
10241
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|
1683 if (InitialHeapSize == 0) { |
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|
1684 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1685 |
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|
1686 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1687 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1688 |
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|
1689 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
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|
1690 |
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|
1691 if (PrintGCDetails && Verbose) { |
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|
1692 // Cannot use gclog_or_tty yet. |
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|
1693 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
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|
1694 } |
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|
1695 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
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|
1696 } |
10241
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|
1697 // If the minimum heap size has not been set (via -Xms), |
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|
1698 // synchronize with InitialHeapSize to avoid errors with the default value. |
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|
1699 if (min_heap_size() == 0) { |
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|
1700 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
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|
1701 if (PrintGCDetails && Verbose) { |
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|
1702 // Cannot use gclog_or_tty yet. |
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|
1703 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
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|
1704 } |
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|
1705 } |
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|
1706 } |
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|
1707 } |
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|
1708 |
0 | 1709 // This must be called after ergonomics because we want bytecode rewriting |
1710 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1711 void Arguments::set_bytecode_flags() { | |
1712 // Better not attempt to store into a read-only space. | |
1713 if (UseSharedSpaces) { | |
1714 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1715 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1716 } | |
1717 | |
1718 if (!RewriteBytecodes) { | |
1719 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1720 } | |
1721 } | |
1722 | |
1723 // Aggressive optimization flags -XX:+AggressiveOpts | |
1724 void Arguments::set_aggressive_opts_flags() { | |
17
ff5961f4c095
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diff
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|
1725 #ifdef COMPILER2 |
10278 | 1726 if (AggressiveUnboxing) { |
1727 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1728 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1729 } else if (!EliminateAutoBox) { | |
1730 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1731 AggressiveUnboxing = false; | |
1732 } | |
1733 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1734 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1735 } else if (!DoEscapeAnalysis) { | |
1736 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1737 AggressiveUnboxing = false; | |
1738 } | |
1739 } | |
17
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|
1740 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
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|
1741 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
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parents:
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|
1742 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
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|
1743 } |
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|
1744 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1745 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1746 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1747 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1748 // 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
|
1749 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1750 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
|
1751 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1752 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1753 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1754 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1755 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1756 #endif |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1757 |
0 | 1758 if (AggressiveOpts) { |
61 | 1759 // Sample flag setting code |
1760 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1761 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1762 // } | |
0 | 1763 } |
1764 } | |
1765 | |
1766 //=========================================================================================================== | |
1767 // Parsing of java.compiler property | |
1768 | |
1769 void Arguments::process_java_compiler_argument(char* arg) { | |
1770 // For backwards compatibility, Djava.compiler=NONE or "" | |
1771 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1772 // is also specified. | |
1773 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1774 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1775 } | |
1776 } | |
1777 | |
1778 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1779 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1780 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1781 _created_by_gamma_launcher = true; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1782 } |
0 | 1783 } |
1784 | |
1785 bool Arguments::created_by_java_launcher() { | |
1786 assert(_sun_java_launcher != NULL, "property must have value"); | |
1787 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1788 } | |
1789 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1790 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1791 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1792 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1793 |
0 | 1794 //=========================================================================================================== |
1795 // Parsing of main arguments | |
1796 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1797 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
|
1798 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1799 // 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
|
1800 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1801 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1802 return true; |
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 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1805 "%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
|
1806 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1807 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1808 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1809 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1810 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1811 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
|
1812 // 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
|
1813 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1814 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1815 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1816 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1817 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1818 "%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
|
1819 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1820 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1821 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1822 |
0 | 1823 bool Arguments::verify_percentage(uintx value, const char* name) { |
1824 if (value <= 100) { | |
1825 return true; | |
1826 } | |
1827 jio_fprintf(defaultStream::error_stream(), | |
1828 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1829 name, value); | |
1830 return false; | |
1831 } | |
1832 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1833 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1834 #ifdef ASSERT |
0 | 1835 static bool verify_serial_gc_flags() { |
1836 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1837 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1838 UseParallelGC || UseParallelOldGC)); |
0 | 1839 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1840 #endif // ASSERT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1841 #endif // INCLUDE_ALL_GCS |
0 | 1842 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1843 // check if do gclog rotation |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1844 // +UseGCLogFileRotation is a must, |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1845 // 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
|
1846 // 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
|
1847 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1848 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1849 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1850 (NumberOfGCLogFiles == 0) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1851 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1852 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
|
1853 "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
|
1854 "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
|
1855 "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
|
1856 UseGCLogFileRotation = false; |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1857 } |
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 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1861 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
|
1862 jio_fprintf(defaultStream::output_stream(), |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1863 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1864 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1865 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1866 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1867 // Check consistency of GC selection |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1868 bool Arguments::check_gc_consistency() { |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1869 check_gclog_consistency(); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1870 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1871 // 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
|
1872 // 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
|
1873 // 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
|
1874 // 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
|
1875 // 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
|
1876 // 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
|
1877 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1878 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1879 if (UseSerialGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1880 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1881 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1882 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1883 if (i > 1) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1884 jio_fprintf(defaultStream::error_stream(), |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1885 "Conflicting collector combinations in option list; " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1886 "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
|
1887 "allowed\n"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1888 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1889 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1890 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1891 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1892 "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
|
1893 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1894 status = false; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1895 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1896 return status; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1897 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1898 |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1899 void Arguments::check_deprecated_gcs() { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1900 if (UseConcMarkSweepGC && !UseParNewGC) { |
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1901 warning("Using the DefNew young collector with the CMS collector is deprecated " |
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1902 "and will likely be removed in a future release"); |
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1903 } |
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1904 |
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1905 if (UseParNewGC && !UseConcMarkSweepGC) { |
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1906 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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1907 // set up UseSerialGC properly, so that can't be used in the check here. |
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1908 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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1909 "and will likely be removed in a future release"); |
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1910 } |
7453 | 1911 |
1912 if (CMSIncrementalMode) { | |
1913 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1914 } | |
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1915 } |
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1916 |
8734 | 1917 void Arguments::check_deprecated_gc_flags() { |
1918 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1919 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1920 "and will likely be removed in future release"); | |
1921 } | |
11977 | 1922 if (FLAG_IS_CMDLINE(DefaultMaxRAMFraction)) { |
1923 warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. " | |
1924 "Use MaxRAMFraction instead."); | |
1925 } | |
8734 | 1926 } |
1927 | |
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1928 // Check stack pages settings |
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1929 bool Arguments::check_stack_pages() |
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1930 { |
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1931 bool status = true; |
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1932 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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1933 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
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1934 // greater stack shadow pages can't generate instruction to bang stack |
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1935 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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1936 return status; |
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1937 } |
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1938 |
0 | 1939 // Check the consistency of vm_init_args |
1940 bool Arguments::check_vm_args_consistency() { | |
1941 // Method for adding checks for flag consistency. | |
1942 // The intent is to warn the user of all possible conflicts, | |
1943 // before returning an error. | |
1944 // Note: Needs platform-dependent factoring. | |
1945 bool status = true; | |
1946 | |
1947 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1948 // builds so the cost of stack banging can be measured. | |
1949 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1950 if (!UseBoundThreads && !UseStackBanging) { | |
1951 jio_fprintf(defaultStream::error_stream(), | |
1952 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1953 | |
1954 status = false; | |
1955 } | |
1956 #endif | |
1957 | |
1958 if (TLABRefillWasteFraction == 0) { | |
1959 jio_fprintf(defaultStream::error_stream(), | |
1960 "TLABRefillWasteFraction should be a denominator, " | |
1961 "not " SIZE_FORMAT "\n", | |
1962 TLABRefillWasteFraction); | |
1963 status = false; | |
1964 } | |
1965 | |
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1966 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 1967 "AdaptiveSizePolicyWeight"); |
10
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1968 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1969 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1970 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1971 |
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1972 // Divide by bucket size to prevent a large size from causing rollover when |
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1973 // calculating amount of memory needed to be allocated for the String table. |
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1974 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
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1975 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1976 |
0 | 1977 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1978 jio_fprintf(defaultStream::error_stream(), | |
1979 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1980 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1981 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1982 status = false; | |
1983 } | |
1984 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1985 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1986 | |
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1987 // Min/MaxMetaspaceFreeRatio |
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1988 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1989 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1990 |
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1991 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1992 jio_fprintf(defaultStream::error_stream(), |
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1993 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1994 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1995 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1996 MinMetaspaceFreeRatio, |
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1997 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1998 MaxMetaspaceFreeRatio); |
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1999 status = false; |
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2000 } |
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2001 |
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2002 // Trying to keep 100% free is not practical |
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2003 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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2004 |
0 | 2005 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
2006 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
2007 } | |
2008 | |
483
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2009 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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2010 // Settings to encourage splitting. |
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2011 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 2012 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
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2013 } |
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2014 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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2015 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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2016 } |
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2017 } |
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2018 |
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2019 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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2020 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 2021 if (GCTimeLimit == 100) { |
2022 // Turn off gc-overhead-limit-exceeded checks | |
2023 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
2024 } | |
2025 | |
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2026 status = status && check_gc_consistency(); |
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2027 status = status && check_stack_pages(); |
0 | 2028 |
2029 if (CMSIncrementalMode) { | |
2030 if (!UseConcMarkSweepGC) { | |
2031 jio_fprintf(defaultStream::error_stream(), | |
2032 "error: invalid argument combination.\n" | |
2033 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2034 "selected in order\nto use CMSIncrementalMode.\n"); | |
2035 status = false; | |
2036 } else { | |
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2037 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2038 "CMSIncrementalDutyCycle"); |
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2039 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2040 "CMSIncrementalDutyCycleMin"); |
10
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2041 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2042 "CMSIncrementalSafetyFactor"); |
10
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2043 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2044 "CMSIncrementalOffset"); |
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2045 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2046 "CMSExpAvgFactor"); |
2047 // If it was not set on the command line, set | |
2048 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2049 if (CMSInitiatingOccupancyFraction < 0) { | |
2050 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2051 } | |
2052 } | |
2053 } | |
2054 | |
2055 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2056 // insists that we hold the requisite locks so that the iteration is | |
2057 // MT-safe. For the verification at start-up and shut-down, we don't | |
2058 // yet have a good way of acquiring and releasing these locks, | |
2059 // which are not visible at the CollectedHeap level. We want to | |
2060 // be able to acquire these locks and then do the iteration rather | |
2061 // than just disable the lock verification. This will be fixed under | |
2062 // bug 4788986. | |
2063 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
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2064 if (VerifyDuringStartup) { |
0 | 2065 warning("Heap verification at start-up disabled " |
2066 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
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2067 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2068 } |
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2069 |
0 | 2070 if (VerifyBeforeExit) { |
2071 warning("Heap verification at shutdown disabled " | |
2072 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2073 VerifyBeforeExit = false; // Disable verification at shutdown | |
2074 } | |
2075 } | |
2076 | |
2077 // Note: only executed in non-PRODUCT mode | |
2078 if (!UseAsyncConcMarkSweepGC && | |
2079 (ExplicitGCInvokesConcurrent || | |
2080 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2081 jio_fprintf(defaultStream::error_stream(), | |
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2082 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2083 " with -UseAsyncConcMarkSweepGC"); |
2084 status = false; | |
2085 } | |
2086 | |
2366
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2087 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
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2088 |
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2089 #if INCLUDE_ALL_GCS |
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2090 if (UseG1GC) { |
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2091 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
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2092 "InitiatingHeapOccupancyPercent"); |
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2093 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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2094 "G1RefProcDrainInterval"); |
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2095 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
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2096 "G1ConcMarkStepDurationMillis"); |
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2097 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
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2098 "G1ConcRSHotCardLimit"); |
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2099 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
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2100 "G1ConcRSLogCacheSize"); |
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2101 } |
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2102 if (UseConcMarkSweepGC) { |
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2103 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
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2104 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
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2105 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
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|
2106 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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|
2107 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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changeset
|
2108 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
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(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2111 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2112 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
|
2113 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2114 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
|
2115 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2116 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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changeset
|
2117 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
|
2118 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
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changeset
|
2119 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2120 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2121 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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changeset
|
2122 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
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changeset
|
2123 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
|
2124 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2125 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
|
2126 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2127 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2128 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
|
2129 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
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changeset
|
2130 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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changeset
|
2131 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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changeset
|
2132 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2133 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
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diff
changeset
|
2134 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2135 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2136 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
|
2137 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2138 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2139 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2140 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2141 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2142 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2143 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2144 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2145 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2146 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2147 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2148 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2149 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2150 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2151 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2152 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2153 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2154 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2155 // 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
|
2156 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2157 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2158 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2159 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2160 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
|
2161 |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
2162 status = status && verify_interval(ClassMetaspaceSize, 1*M, 3*G, |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2163 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2164 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2165 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2166 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2167 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
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_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2170 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2171 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
|
2172 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2173 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2174 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2175 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2176 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2177 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2178 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2179 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2180 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2181 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2182 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2183 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2184 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2185 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2186 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2187 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2188 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2189 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2190 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2191 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2192 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2193 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2194 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2195 // 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
|
2196 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2197 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2198 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2199 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2200 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2201 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2202 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2203 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2204 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2205 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2206 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2207 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2208 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2209 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2210 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2211 " 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
|
2212 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2213 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2214 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2215 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2216 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2217 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2218 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2219 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2220 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
|
2221 PrintNMTStatistics = false; |
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7189254: Change makefiles for more flexibility to override defaults
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6818
diff
changeset
|
2222 #if INCLUDE_NMT |
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7189254: Change makefiles for more flexibility to override defaults
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6818
diff
changeset
|
2223 } |
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7189254: Change makefiles for more flexibility to override defaults
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6818
diff
changeset
|
2224 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
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parents:
6736
diff
changeset
|
2225 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
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6736
diff
changeset
|
2226 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
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parents:
10172
diff
changeset
|
2227 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2228 // 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
|
2229 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2230 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2231 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2232 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2233 "ContendedPaddingWidth=" INTX_FORMAT " must be the between %d and %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2234 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2235 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2236 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2237 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2238 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2239 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2240 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2241 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2242 "ContendedPaddingWidth=" INTX_FORMAT " must be the multiple of %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2243 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2244 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
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10172
diff
changeset
|
2245 } |
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8006997: ContendedPaddingWidth should be range-checked
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parents:
10172
diff
changeset
|
2246 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2247 // 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
|
2248 // 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
|
2249 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
|
2250 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
|
2251 jio_fprintf(defaultStream::error_stream(), |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2252 "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
|
2253 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2254 status = false; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2255 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2256 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2257 "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
|
2258 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
|
2259 status = false; |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2260 } 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
|
2261 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2262 "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
|
2263 min_code_cache_size/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2264 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2265 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2266 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2267 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2268 "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
|
2269 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2270 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
|
2271 } |
0 | 2272 return status; |
2273 } | |
2274 | |
2275 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2276 const char* option_type) { | |
2277 if (ignore) return false; | |
2278 | |
2279 const char* spacer = " "; | |
2280 if (option_type == NULL) { | |
2281 option_type = ++spacer; // Set both to the empty string. | |
2282 } | |
2283 | |
2284 if (os::obsolete_option(option)) { | |
2285 jio_fprintf(defaultStream::error_stream(), | |
2286 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2287 option->optionString); | |
2288 return false; | |
2289 } else { | |
2290 jio_fprintf(defaultStream::error_stream(), | |
2291 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2292 option->optionString); | |
2293 return true; | |
2294 } | |
2295 } | |
2296 | |
2297 static const char* user_assertion_options[] = { | |
2298 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2299 }; | |
2300 | |
2301 static const char* system_assertion_options[] = { | |
2302 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2303 }; | |
2304 | |
2305 // Return true if any of the strings in null-terminated array 'names' matches. | |
2306 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2307 // the option must match exactly. | |
2308 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2309 bool tail_allowed) { | |
2310 for (/* empty */; *names != NULL; ++names) { | |
2311 if (match_option(option, *names, tail)) { | |
2312 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2313 return true; | |
2314 } | |
2315 } | |
2316 } | |
2317 return false; | |
2318 } | |
2319 | |
1284 | 2320 bool Arguments::parse_uintx(const char* value, |
2321 uintx* uintx_arg, | |
2322 uintx min_size) { | |
2323 | |
2324 // Check the sign first since atomull() parses only unsigned values. | |
2325 bool value_is_positive = !(*value == '-'); | |
2326 | |
2327 if (value_is_positive) { | |
2328 julong n; | |
2329 bool good_return = atomull(value, &n); | |
2330 if (good_return) { | |
2331 bool above_minimum = n >= min_size; | |
2332 bool value_is_too_large = n > max_uintx; | |
2333 | |
2334 if (above_minimum && !value_is_too_large) { | |
2335 *uintx_arg = n; | |
2336 return true; | |
2337 } | |
2338 } | |
2339 } | |
2340 return false; | |
2341 } | |
2342 | |
0 | 2343 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
|
2344 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2345 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2346 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2347 return check_memory_size(*long_arg, min_size); |
2348 } | |
2349 | |
2350 // Parse JavaVMInitArgs structure | |
2351 | |
2352 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2353 // For components of the system classpath. | |
2354 SysClassPath scp(Arguments::get_sysclasspath()); | |
2355 bool scp_assembly_required = false; | |
2356 | |
2357 // Save default settings for some mode flags | |
2358 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2359 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2360 Arguments::_ClipInlining = ClipInlining; | |
2361 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2362 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2363 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2364 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2365 |
0 | 2366 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2367 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2368 if (result != JNI_OK) { | |
2369 return result; | |
2370 } | |
2371 | |
2372 // Parse JavaVMInitArgs structure passed in | |
2373 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2374 if (result != JNI_OK) { | |
2375 return result; | |
2376 } | |
2377 | |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2378 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2379 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2380 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2381 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2382 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2383 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
|
2384 strlen(altclasses_jar); |
6197 | 2385 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
|
2386 strcpy(altclasses_path, get_meta_index_dir()); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2387 strcat(altclasses_path, altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2388 scp.add_suffix_to_prefix(altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2389 scp_assembly_required = true; |
6197 | 2390 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2391 } |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2392 |
0 | 2393 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2394 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2395 if (result != JNI_OK) { | |
2396 return result; | |
2397 } | |
2398 | |
2399 // Do final processing now that all arguments have been parsed | |
2400 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2401 if (result != JNI_OK) { | |
2402 return result; | |
2403 } | |
2404 | |
2405 return JNI_OK; | |
2406 } | |
2407 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2408 // 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
|
2409 // 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
|
2410 // 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
|
2411 // -agentlib |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2412 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
|
2413 char *_name; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2414 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
|
2415 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
|
2416 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2417 if (is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2418 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
|
2419 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2420 } |
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 _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
|
2423 _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
|
2424 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2425 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
|
2426 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2427 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2428 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2429 _name += _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2430 _len_hprof = strlen(_hprof); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2431 _len_jdwp = strlen(_jdwp); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2432 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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2433 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
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2434 _name += _len_hprof; |
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|
2435 } |
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2436 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
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2437 _name += _len_jdwp; |
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|
2438 } |
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|
2439 else { |
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|
2440 return false; |
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|
2441 } |
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|
2442 |
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2443 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
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2444 return false; |
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|
2445 } |
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|
2446 |
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2447 return true; |
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|
2448 } |
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|
2449 |
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|
2450 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
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|
2451 return true; |
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|
2452 } |
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|
2453 |
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|
2454 return false; |
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|
2455 } |
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|
2456 |
0 | 2457 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2458 SysClassPath* scp_p, | |
2459 bool* scp_assembly_required_p, | |
2460 FlagValueOrigin origin) { | |
2461 // Remaining part of option string | |
2462 const char* tail; | |
2463 | |
2464 // iterate over arguments | |
2465 for (int index = 0; index < args->nOptions; index++) { | |
2466 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2467 | |
2468 const JavaVMOption* option = args->options + index; | |
2469 | |
2470 if (!match_option(option, "-Djava.class.path", &tail) && | |
2471 !match_option(option, "-Dsun.java.command", &tail) && | |
2472 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2473 | |
2474 // add all jvm options to the jvm_args string. This string | |
2475 // is used later to set the java.vm.args PerfData string constant. | |
2476 // the -Djava.class.path and the -Dsun.java.command options are | |
2477 // omitted from jvm_args string as each have their own PerfData | |
2478 // string constant object. | |
2479 build_jvm_args(option->optionString); | |
2480 } | |
2481 | |
2482 // -verbose:[class/gc/jni] | |
2483 if (match_option(option, "-verbose", &tail)) { | |
2484 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2485 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2486 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2487 } else if (!strcmp(tail, ":gc")) { | |
2488 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2489 } else if (!strcmp(tail, ":jni")) { | |
2490 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2491 } | |
2492 // -da / -ea / -disableassertions / -enableassertions | |
2493 // These accept an optional class/package name separated by a colon, e.g., | |
2494 // -da:java.lang.Thread. | |
2495 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2496 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2497 if (*tail == '\0') { | |
2498 JavaAssertions::setUserClassDefault(enable); | |
2499 } else { | |
2500 assert(*tail == ':', "bogus match by match_option()"); | |
2501 JavaAssertions::addOption(tail + 1, enable); | |
2502 } | |
2503 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2504 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2505 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2506 JavaAssertions::setSystemClassDefault(enable); | |
2507 // -bootclasspath: | |
2508 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2509 scp_p->reset_path(tail); | |
2510 *scp_assembly_required_p = true; | |
2511 // -bootclasspath/a: | |
2512 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2513 scp_p->add_suffix(tail); | |
2514 *scp_assembly_required_p = true; | |
2515 // -bootclasspath/p: | |
2516 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2517 scp_p->add_prefix(tail); | |
2518 *scp_assembly_required_p = true; | |
2519 // -Xrun | |
2520 } else if (match_option(option, "-Xrun", &tail)) { | |
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2521 if (tail != NULL) { |
0 | 2522 const char* pos = strchr(tail, ':'); |
2523 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2524 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2525 name[len] = '\0'; |
2526 | |
2527 char *options = NULL; | |
2528 if(pos != NULL) { | |
2529 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2530 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2531 } |
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|
2532 #if !INCLUDE_JVMTI |
0 | 2533 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2534 jio_fprintf(defaultStream::error_stream(), |
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2535 "Profiling and debugging agents are not supported in this VM\n"); |
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|
2536 return JNI_ERR; |
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|
2537 } |
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|
2538 #endif // !INCLUDE_JVMTI |
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8105
diff
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|
2539 add_init_library(name, options); |
0 | 2540 } |
2541 // -agentlib and -agentpath | |
2542 } else if (match_option(option, "-agentlib:", &tail) || | |
2543 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2544 if(tail != NULL) { | |
2545 const char* pos = strchr(tail, '='); | |
2546 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2547 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2548 name[len] = '\0'; |
2549 | |
2550 char *options = NULL; | |
2551 if(pos != NULL) { | |
6197 | 2552 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2553 } |
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|
2554 #if !INCLUDE_JVMTI |
10170
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diff
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2555 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
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|
2556 jio_fprintf(defaultStream::error_stream(), |
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|
2557 "Profiling and debugging agents are not supported in this VM\n"); |
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diff
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|
2558 return JNI_ERR; |
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diff
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|
2559 } |
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changeset
|
2560 #endif // !INCLUDE_JVMTI |
0 | 2561 add_init_agent(name, options, is_absolute_path); |
2562 } | |
2563 // -javaagent | |
2564 } else if (match_option(option, "-javaagent:", &tail)) { | |
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|
2565 #if !INCLUDE_JVMTI |
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|
2566 jio_fprintf(defaultStream::error_stream(), |
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|
2567 "Instrumentation agents are not supported in this VM\n"); |
fad90b102190
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|
2568 return JNI_ERR; |
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|
2569 #else |
0 | 2570 if(tail != NULL) { |
6197 | 2571 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2572 add_init_agent("instrument", options, false); |
2573 } | |
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|
2574 #endif // !INCLUDE_JVMTI |
0 | 2575 // -Xnoclassgc |
2576 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2577 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2578 // -Xincgc: i-CMS | |
2579 } else if (match_option(option, "-Xincgc", &tail)) { | |
2580 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2581 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2582 // -Xnoincgc: no i-CMS | |
2583 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2584 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2585 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2586 // -Xconcgc | |
2587 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2588 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2589 // -Xnoconcgc | |
2590 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2591 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2592 // -Xbatch | |
2593 } else if (match_option(option, "-Xbatch", &tail)) { | |
2594 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2595 // -Xmn for compatibility with other JVM vendors | |
2596 } else if (match_option(option, "-Xmn", &tail)) { | |
489
2494ab195856
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483
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|
2597 julong long_initial_eden_size = 0; |
0 | 2598 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2599 if (errcode != arg_in_range) { | |
2600 jio_fprintf(defaultStream::error_stream(), | |
2601 "Invalid initial eden size: %s\n", option->optionString); | |
2602 describe_range_error(errcode); | |
2603 return JNI_EINVAL; | |
2604 } | |
1064 | 2605 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2606 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2607 // -Xms |
2608 } else if (match_option(option, "-Xms", &tail)) { | |
489
2494ab195856
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|
2609 julong long_initial_heap_size = 0; |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
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diff
changeset
|
2610 // an initial heap size of 0 means automatically determine |
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diff
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|
2611 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2612 if (errcode != arg_in_range) { |
2613 jio_fprintf(defaultStream::error_stream(), | |
2614 "Invalid initial heap size: %s\n", option->optionString); | |
2615 describe_range_error(errcode); | |
2616 return JNI_EINVAL; | |
2617 } | |
1064 | 2618 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2619 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2620 set_min_heap_size(InitialHeapSize); |
0 | 2621 // -Xmx |
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diff
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|
2622 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
489
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|
2623 julong long_max_heap_size = 0; |
0 | 2624 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2625 if (errcode != arg_in_range) { | |
2626 jio_fprintf(defaultStream::error_stream(), | |
2627 "Invalid maximum heap size: %s\n", option->optionString); | |
2628 describe_range_error(errcode); | |
2629 return JNI_EINVAL; | |
2630 } | |
1064 | 2631 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2632 // Xmaxf |
2633 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2634 int maxf = (int)(atof(tail) * 100); | |
2635 if (maxf < 0 || maxf > 100) { | |
2636 jio_fprintf(defaultStream::error_stream(), | |
2637 "Bad max heap free percentage size: %s\n", | |
2638 option->optionString); | |
2639 return JNI_EINVAL; | |
2640 } else { | |
2641 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2642 } | |
2643 // Xminf | |
2644 } else if (match_option(option, "-Xminf", &tail)) { | |
2645 int minf = (int)(atof(tail) * 100); | |
2646 if (minf < 0 || minf > 100) { | |
2647 jio_fprintf(defaultStream::error_stream(), | |
2648 "Bad min heap free percentage size: %s\n", | |
2649 option->optionString); | |
2650 return JNI_EINVAL; | |
2651 } else { | |
2652 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2653 } | |
2654 // -Xss | |
2655 } else if (match_option(option, "-Xss", &tail)) { | |
489
2494ab195856
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483
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|
2656 julong long_ThreadStackSize = 0; |
0 | 2657 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2658 if (errcode != arg_in_range) { | |
2659 jio_fprintf(defaultStream::error_stream(), | |
2660 "Invalid thread stack size: %s\n", option->optionString); | |
2661 describe_range_error(errcode); | |
2662 return JNI_EINVAL; | |
2663 } | |
2664 // Internally track ThreadStackSize in units of 1024 bytes. | |
2665 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2666 round_to((int)long_ThreadStackSize, K) / K); | |
2667 // -Xoss | |
2668 } else if (match_option(option, "-Xoss", &tail)) { | |
2669 // 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
|
2670 } 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
|
2671 julong long_CodeCacheExpansionSize = 0; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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diff
changeset
|
2672 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
738e04fb1232
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diff
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|
2673 if (errcode != arg_in_range) { |
738e04fb1232
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diff
changeset
|
2674 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
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diff
changeset
|
2675 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
738e04fb1232
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diff
changeset
|
2676 os::vm_page_size()/K); |
738e04fb1232
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diff
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|
2677 return JNI_EINVAL; |
738e04fb1232
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diff
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|
2678 } |
738e04fb1232
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anoll
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diff
changeset
|
2679 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
|
2680 } 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
|
2681 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
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swamyv
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483
diff
changeset
|
2682 julong long_ReservedCodeCacheSize = 0; |
11079
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anoll
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diff
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|
2683 |
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.
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10319
diff
changeset
|
2684 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2685 if (errcode != arg_in_range) { |
2686 jio_fprintf(defaultStream::error_stream(), | |
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|
2687 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2688 return JNI_EINVAL; |
2689 } | |
2690 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
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|
2691 //-XX:IncreaseFirstTierCompileThresholdAt= |
91eba9f82325
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2692 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
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|
2693 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
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|
2694 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
91eba9f82325
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|
2695 jio_fprintf(defaultStream::error_stream(), |
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|
2696 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
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|
2697 option->optionString); |
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|
2698 return JNI_EINVAL; |
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|
2699 } |
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|
2700 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2701 // -green |
2702 } else if (match_option(option, "-green", &tail)) { | |
2703 jio_fprintf(defaultStream::error_stream(), | |
2704 "Green threads support not available\n"); | |
2705 return JNI_EINVAL; | |
2706 // -native | |
2707 } else if (match_option(option, "-native", &tail)) { | |
2708 // HotSpot always uses native threads, ignore silently for compatibility | |
2709 // -Xsqnopause | |
2710 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2711 // EVM option, ignore silently for compatibility | |
2712 // -Xrs | |
2713 } else if (match_option(option, "-Xrs", &tail)) { | |
2714 // Classic/EVM option, new functionality | |
2715 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2716 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2717 // change default internal VM signals used - lower case for back compat | |
2718 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2719 // -Xoptimize | |
2720 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2721 // EVM option, ignore silently for compatibility | |
2722 // -Xprof | |
2723 } else if (match_option(option, "-Xprof", &tail)) { | |
6854
fb19af007ffc
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|
2724 #if INCLUDE_FPROF |
0 | 2725 _has_profile = true; |
6854
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2726 #else // INCLUDE_FPROF |
8720
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|
2727 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
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|
2728 "Flat profiling is not supported in this VM.\n"); |
fad90b102190
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|
2729 return JNI_ERR; |
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|
2730 #endif // INCLUDE_FPROF |
0 | 2731 // -Xconcurrentio |
2732 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2733 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2734 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2735 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2736 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2737 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2738 | |
2739 // -Xinternalversion | |
2740 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2741 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2742 VM_Version::internal_vm_info_string()); | |
2743 vm_exit(0); | |
2744 #ifndef PRODUCT | |
2745 // -Xprintflags | |
2746 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2747 CommandLineFlags::printFlags(tty, false); |
0 | 2748 vm_exit(0); |
2749 #endif | |
2750 // -D | |
2751 } else if (match_option(option, "-D", &tail)) { | |
2752 if (!add_property(tail)) { | |
2753 return JNI_ENOMEM; | |
2754 } | |
2755 // Out of the box management support | |
2756 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
579f6adb7f51
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|
2757 #if INCLUDE_MANAGEMENT |
0 | 2758 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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|
2759 #else |
8720
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|
2760 jio_fprintf(defaultStream::output_stream(), |
fad90b102190
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|
2761 "-Dcom.sun.management is not supported in this VM.\n"); |
fad90b102190
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|
2762 return JNI_ERR; |
8081
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jprovino
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8002
diff
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|
2763 #endif |
0 | 2764 } |
2765 // -Xint | |
2766 } else if (match_option(option, "-Xint", &tail)) { | |
2767 set_mode_flags(_int); | |
2768 // -Xmixed | |
2769 } else if (match_option(option, "-Xmixed", &tail)) { | |
2770 set_mode_flags(_mixed); | |
2771 // -Xcomp | |
2772 } else if (match_option(option, "-Xcomp", &tail)) { | |
2773 // for testing the compiler; turn off all flags that inhibit compilation | |
2774 set_mode_flags(_comp); | |
2775 // -Xshare:dump | |
2776 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2777 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2778 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2779 // -Xshare:on | |
2780 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2781 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2782 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2783 // -Xshare:auto | |
2784 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2785 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2786 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2787 // -Xshare:off | |
2788 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2789 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2790 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2791 // -Xverify | |
2792 } else if (match_option(option, "-Xverify", &tail)) { | |
2793 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2794 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2795 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2796 } else if (strcmp(tail, ":remote") == 0) { | |
2797 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2798 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2799 } else if (strcmp(tail, ":none") == 0) { | |
2800 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2801 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2802 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2803 return JNI_EINVAL; | |
2804 } | |
2805 // -Xdebug | |
2806 } else if (match_option(option, "-Xdebug", &tail)) { | |
2807 // note this flag has been used, then ignore | |
2808 set_xdebug_mode(true); | |
2809 // -Xnoagent | |
2810 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2811 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2812 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2813 // Bind user level threads to kernel threads (Solaris only) | |
2814 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2815 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2816 // Redirect GC output to the file. -Xloggc:<filename> | |
2817 // ostream_init_log(), when called will use this filename | |
2818 // to initialize a fileStream. | |
2819 _gc_log_filename = strdup(tail); | |
2820 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2821 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2822 | |
2823 // JNI hooks | |
2824 } else if (match_option(option, "-Xcheck", &tail)) { | |
2825 if (!strcmp(tail, ":jni")) { | |
6854
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|
2826 #if !INCLUDE_JNI_CHECK |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
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parents:
6818
diff
changeset
|
2827 warning("JNI CHECKING is not supported in this VM"); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2828 #else |
0 | 2829 CheckJNICalls = true; |
6854
fb19af007ffc
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parents:
6818
diff
changeset
|
2830 #endif // INCLUDE_JNI_CHECK |
0 | 2831 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2832 "check")) { | |
2833 return JNI_EINVAL; | |
2834 } | |
2835 } else if (match_option(option, "vfprintf", &tail)) { | |
2836 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2837 } else if (match_option(option, "exit", &tail)) { | |
2838 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2839 } else if (match_option(option, "abort", &tail)) { | |
2840 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2841 // -XX:+AggressiveHeap | |
2842 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2843 | |
2844 // This option inspects the machine and attempts to set various | |
2845 // parameters to be optimal for long-running, memory allocation | |
2846 // intensive jobs. It is intended for machines with large | |
2847 // amounts of cpu and memory. | |
2848 | |
2849 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2850 // VM, but we may not be able to represent the total physical memory | |
2851 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2852 // Thus, we need to make sure we're using a julong for intermediate | |
2853 // calculations. | |
2854 julong initHeapSize; | |
2855 julong total_memory = os::physical_memory(); | |
2856 | |
2857 if (total_memory < (julong)256*M) { | |
2858 jio_fprintf(defaultStream::error_stream(), | |
2859 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2860 vm_exit(1); | |
2861 } | |
2862 | |
2863 // The heap size is half of available memory, or (at most) | |
2864 // all of possible memory less 160mb (leaving room for the OS | |
2865 // when using ISM). This is the maximum; because adaptive sizing | |
2866 // is turned on below, the actual space used may be smaller. | |
2867 | |
2868 initHeapSize = MIN2(total_memory / (julong)2, | |
2869 total_memory - (julong)160*M); | |
2870 | |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
2871 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2872 |
2873 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2874 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2875 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2876 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2877 set_min_heap_size(initHeapSize); |
0 | 2878 } |
2879 if (FLAG_IS_DEFAULT(NewSize)) { | |
2880 // Make the young generation 3/8ths of the total heap. | |
2881 FLAG_SET_CMDLINE(uintx, NewSize, | |
2882 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2883 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2884 } | |
2885 | |
6917
e81fbc04a942
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coleenp
parents:
6916
diff
changeset
|
2886 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2887 FLAG_SET_DEFAULT(UseLargePages, true); |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
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parents:
6916
diff
changeset
|
2888 #endif |
0 | 2889 |
2890 // Increase some data structure sizes for efficiency | |
2891 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2892 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2893 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2894 | |
2895 // See the OldPLABSize comment below, but replace 'after promotion' | |
2896 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2897 // space per-gc-thread buffers. The default is 4kw. | |
2898 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2899 | |
2900 // OldPLABSize is the size of the buffers in the old gen that | |
2901 // UseParallelGC uses to promote live data that doesn't fit in the | |
2902 // survivor spaces. At any given time, there's one for each gc thread. | |
2903 // The default size is 1kw. These buffers are rarely used, since the | |
2904 // survivor spaces are usually big enough. For specjbb, however, there | |
2905 // are occasions when there's lots of live data in the young gen | |
2906 // and we end up promoting some of it. We don't have a definite | |
2907 // explanation for why bumping OldPLABSize helps, but the theory | |
2908 // is that a bigger PLAB results in retaining something like the | |
2909 // original allocation order after promotion, which improves mutator | |
2910 // locality. A minor effect may be that larger PLABs reduce the | |
2911 // number of PLAB allocation events during gc. The value of 8kw | |
2912 // was arrived at by experimenting with specjbb. | |
2913 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2914 | |
2915 // Enable parallel GC and adaptive generation sizing | |
2916 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
changeset
|
2917 FLAG_SET_DEFAULT(ParallelGCThreads, |
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6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
changeset
|
2918 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2919 |
2920 // Encourage steady state memory management | |
2921 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2922 | |
2923 // This appears to improve mutator locality | |
2924 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2925 | |
2926 // Get around early Solaris scheduling bug | |
2927 // (affinity vs other jobs on system) | |
2928 // but disallow DR and offlining (5008695). | |
2929 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2930 | |
2931 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2932 // The last option must always win. | |
2933 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2934 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2935 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2936 // The last option must always win. | |
2937 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2938 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2939 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2940 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2941 jio_fprintf(defaultStream::error_stream(), | |
2942 "Please use CMSClassUnloadingEnabled in place of " | |
2943 "CMSPermGenSweepingEnabled in the future\n"); | |
2944 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2945 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2946 jio_fprintf(defaultStream::error_stream(), | |
2947 "Please use -XX:+UseGCOverheadLimit in place of " | |
2948 "-XX:+UseGCTimeLimit in the future\n"); | |
2949 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2950 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2951 jio_fprintf(defaultStream::error_stream(), | |
2952 "Please use -XX:-UseGCOverheadLimit in place of " | |
2953 "-XX:-UseGCTimeLimit in the future\n"); | |
2954 // The TLE options are for compatibility with 1.3 and will be | |
2955 // removed without notice in a future release. These options | |
2956 // are not to be documented. | |
2957 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2958 // No longer used. | |
2959 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2960 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2961 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2962 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2963 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2964 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2965 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2966 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2967 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2968 // No longer used. | |
2969 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
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|
2970 julong long_tlab_size = 0; |
0 | 2971 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2972 if (errcode != arg_in_range) { | |
2973 jio_fprintf(defaultStream::error_stream(), | |
2974 "Invalid TLAB size: %s\n", option->optionString); | |
2975 describe_range_error(errcode); | |
2976 return JNI_EINVAL; | |
2977 } | |
2978 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2979 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2980 // No longer used. | |
2981 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2982 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2983 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2984 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2985 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2986 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2987 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2988 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2989 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2990 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2991 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2992 #if defined(DTRACE_ENABLED) |
0 | 2993 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2994 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2995 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2996 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2997 #else // defined(DTRACE_ENABLED) |
0 | 2998 jio_fprintf(defaultStream::error_stream(), |
4006 | 2999 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 3000 return JNI_EINVAL; |
4006 | 3001 #endif // defined(DTRACE_ENABLED) |
0 | 3002 #ifdef ASSERT |
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6631166: CMS: better heuristics when combatting fragmentation
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1074
diff
changeset
|
3003 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 3004 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
3005 // disable scavenge before parallel mark-compact | |
3006 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3007 #endif | |
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|
3008 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 3009 julong cms_blocks_to_claim = (julong)atol(tail); |
3010 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
3011 jio_fprintf(defaultStream::error_stream(), | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3012 "Please use -XX:OldPLABSize in place of " |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3013 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3014 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3015 julong cms_blocks_to_claim = (julong)atol(tail); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3016 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3017 jio_fprintf(defaultStream::error_stream(), |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3018 "Please use -XX:OldPLABSize in place of " |
0 | 3019 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3020 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3021 julong old_plab_size = 0; |
0 | 3022 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
3023 if (errcode != arg_in_range) { | |
3024 jio_fprintf(defaultStream::error_stream(), | |
3025 "Invalid old PLAB size: %s\n", option->optionString); | |
3026 describe_range_error(errcode); | |
3027 return JNI_EINVAL; | |
3028 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3029 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 3030 jio_fprintf(defaultStream::error_stream(), |
3031 "Please use -XX:OldPLABSize in place of " | |
3032 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3033 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3034 julong young_plab_size = 0; |
0 | 3035 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3036 if (errcode != arg_in_range) { | |
3037 jio_fprintf(defaultStream::error_stream(), | |
3038 "Invalid young PLAB size: %s\n", option->optionString); | |
3039 describe_range_error(errcode); | |
3040 return JNI_EINVAL; | |
3041 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3042 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3043 jio_fprintf(defaultStream::error_stream(), |
3044 "Please use -XX:YoungPLABSize in place of " | |
3045 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3046 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3047 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3048 julong stack_size = 0; | |
3049 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3050 if (errcode != arg_in_range) { | |
3051 jio_fprintf(defaultStream::error_stream(), | |
3052 "Invalid mark stack size: %s\n", option->optionString); | |
3053 describe_range_error(errcode); | |
3054 return JNI_EINVAL; | |
3055 } | |
3056 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3057 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3058 julong max_stack_size = 0; | |
3059 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3060 if (errcode != arg_in_range) { | |
3061 jio_fprintf(defaultStream::error_stream(), | |
3062 "Invalid maximum mark stack size: %s\n", | |
3063 option->optionString); | |
3064 describe_range_error(errcode); | |
3065 return JNI_EINVAL; | |
3066 } | |
3067 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3068 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3069 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3070 uintx conc_threads = 0; | |
3071 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3072 jio_fprintf(defaultStream::error_stream(), | |
3073 "Invalid concurrent threads: %s\n", option->optionString); | |
3074 return JNI_EINVAL; | |
3075 } | |
3076 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3077 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3078 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3079 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
|
3080 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3081 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3082 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3083 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3084 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3085 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3086 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3087 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3088 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3089 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3090 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3091 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
|
3092 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
|
3093 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3094 } 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
|
3095 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
|
3096 "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
|
3097 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3098 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3099 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3100 // Skip -XX:Flags= since that case has already been handled |
3101 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3102 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3103 return JNI_EINVAL; | |
3104 } | |
3105 } | |
3106 // Unknown option | |
3107 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3108 return JNI_ERR; | |
3109 } | |
3110 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3111 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3112 // 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
|
3113 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3114 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3115 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3116 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3117 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3118 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3119 #endif // LINUX |
0 | 3120 return JNI_OK; |
3121 } | |
3122 | |
3123 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3124 // This must be done after all -D arguments have been processed. | |
3125 scp_p->expand_endorsed(); | |
3126 | |
3127 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3128 // Assemble the bootclasspath elements into the final path. | |
3129 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3130 } | |
3131 | |
3132 // This must be done after all arguments have been processed. | |
3133 // java_compiler() true means set to "NONE" or empty. | |
3134 if (java_compiler() && !xdebug_mode()) { | |
3135 // For backwards compatibility, we switch to interpreted mode if | |
3136 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3137 // not specified. | |
3138 set_mode_flags(_int); | |
3139 } | |
3140 if (CompileThreshold == 0) { | |
3141 set_mode_flags(_int); | |
3142 } | |
3143 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3144 // 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
|
3145 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
|
3146 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
|
3147 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3148 |
0 | 3149 #ifndef COMPILER2 |
3150 // Don't degrade server performance for footprint | |
3151 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3152 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3153 // No need for large granularity pages w/small heaps. | |
3154 // Note that large pages are enabled/disabled for both the | |
3155 // Java heap and the code cache. | |
3156 FLAG_SET_DEFAULT(UseLargePages, false); | |
3157 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3158 |
0 | 3159 #else |
3160 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3161 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3162 } | |
3163 #endif | |
3164 | |
11999
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3165 #ifndef TIERED |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3166 // Tiered compilation is undefined. |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3167 UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation"); |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3168 #endif |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3169 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3170 // 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
|
3171 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3172 // 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
|
3173 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3174 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3175 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3176 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3177 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3178 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3179 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3180 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3181 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3182 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3183 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3184 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3185 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3186 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3187 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3188 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3189 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3190 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3191 |
0 | 3192 if (!check_vm_args_consistency()) { |
3193 return JNI_ERR; | |
3194 } | |
3195 | |
3196 return JNI_OK; | |
3197 } | |
3198 | |
3199 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3200 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3201 scp_assembly_required_p); | |
3202 } | |
3203 | |
3204 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3205 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3206 scp_assembly_required_p); | |
3207 } | |
3208 | |
3209 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3210 const int N_MAX_OPTIONS = 64; | |
3211 const int OPTION_BUFFER_SIZE = 1024; | |
3212 char buffer[OPTION_BUFFER_SIZE]; | |
3213 | |
3214 // The variable will be ignored if it exceeds the length of the buffer. | |
3215 // Don't check this variable if user has special privileges | |
3216 // (e.g. unix su command). | |
3217 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3218 !os::have_special_privileges()) { | |
3219 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3220 jio_fprintf(defaultStream::error_stream(), | |
3221 "Picked up %s: %s\n", name, buffer); | |
3222 char* rd = buffer; // pointer to the input string (rd) | |
3223 int i; | |
3224 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3225 while (isspace(*rd)) rd++; // skip whitespace | |
3226 if (*rd == 0) break; // we re done when the input string is read completely | |
3227 | |
3228 // The output, option string, overwrites the input string. | |
3229 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3230 // input string (rd). | |
3231 char* wrt = rd; | |
3232 | |
3233 options[i++].optionString = wrt; // Fill in option | |
3234 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3235 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3236 int quote = *rd; // matching quote to look for | |
3237 rd++; // don't copy open quote | |
3238 while (*rd != quote) { // include everything (even spaces) up until quote | |
3239 if (*rd == 0) { // string termination means unmatched string | |
3240 jio_fprintf(defaultStream::error_stream(), | |
3241 "Unmatched quote in %s\n", name); | |
3242 return JNI_ERR; | |
3243 } | |
3244 *wrt++ = *rd++; // copy to option string | |
3245 } | |
3246 rd++; // don't copy close quote | |
3247 } else { | |
3248 *wrt++ = *rd++; // copy to option string | |
3249 } | |
3250 } | |
3251 // Need to check if we're done before writing a NULL, | |
3252 // because the write could be to the byte that rd is pointing to. | |
3253 if (*rd++ == 0) { | |
3254 *wrt = 0; | |
3255 break; | |
3256 } | |
3257 *wrt = 0; // Zero terminate option | |
3258 } | |
3259 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3260 JavaVMInitArgs vm_args; | |
3261 vm_args.version = JNI_VERSION_1_2; | |
3262 vm_args.options = options; | |
3263 vm_args.nOptions = i; | |
564 | 3264 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3265 |
3266 if (PrintVMOptions) { | |
3267 const char* tail; | |
3268 for (int i = 0; i < vm_args.nOptions; i++) { | |
3269 const JavaVMOption *option = vm_args.options + i; | |
3270 if (match_option(option, "-XX:", &tail)) { | |
3271 logOption(tail); | |
3272 } | |
3273 } | |
3274 } | |
3275 | |
3276 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3277 } | |
3278 return JNI_OK; | |
3279 } | |
3280 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
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2302
diff
changeset
|
3281 void Arguments::set_shared_spaces_flags() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6628
diff
changeset
|
3282 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3283 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3284 warning("cannot dump shared archive while using shared archive"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6628
diff
changeset
|
3285 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6628
diff
changeset
|
3286 UseSharedSpaces = false; |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
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12003
diff
changeset
|
3287 #ifdef _LP64 |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3288 if (!UseCompressedOops || !UseCompressedKlassPointers) { |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3289 vm_exit_during_initialization( |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3290 "Cannot dump shared archive when UseCompressedOops or UseCompressedKlassPointers is off.", NULL); |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3291 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3292 } else { |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3293 // UseCompressedOops and UseCompressedKlassPointers must be on for UseSharedSpaces. |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3294 if (!UseCompressedOops || !UseCompressedKlassPointers) { |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3295 no_shared_spaces(); |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
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12003
diff
changeset
|
3296 } |
740e263c80c6
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hseigel
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12003
diff
changeset
|
3297 #endif |
6725
da91efe96a93
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diff
changeset
|
3298 } |
2362
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jcoomes
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2302
diff
changeset
|
3299 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
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1890
diff
changeset
|
3300 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
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8847
diff
changeset
|
3301 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3302 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3303 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
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diff
changeset
|
3304 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3305 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3306 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3307 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3308 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3309 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3310 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
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8847
diff
changeset
|
3311 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3312 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3313 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
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diff
changeset
|
3314 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
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10264
diff
changeset
|
3315 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3316 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3317 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3318 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3319 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
|
3320 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
|
3321 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3322 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
|
3323 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
|
3324 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
|
3325 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3326 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3327 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
|
3328 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
|
3329 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3330 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3331 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3332 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
|
3333 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3334 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
|
3335 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3336 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3337 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3338 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3339 |
0 | 3340 // Parse entry point called from JNI_CreateJavaVM |
3341 | |
3342 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3343 | |
3344 // Remaining part of option string | |
3345 const char* tail; | |
3346 | |
3347 // 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
|
3348 const char* hotspotrc = ".hotspotrc"; |
0 | 3349 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
|
3350 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
|
3351 |
564 | 3352 const char* flags_file; |
0 | 3353 int index; |
3354 for (index = 0; index < args->nOptions; index++) { | |
3355 const JavaVMOption *option = args->options + index; | |
3356 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3357 flags_file = tail; |
0 | 3358 settings_file_specified = true; |
3359 } | |
3360 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3361 PrintVMOptions = true; | |
3362 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3363 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
|
3364 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3365 } |
564 | 3366 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3367 IgnoreUnrecognizedVMOptions = true; | |
3368 } | |
3369 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3370 IgnoreUnrecognizedVMOptions = false; | |
3371 } | |
1150 | 3372 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3373 CommandLineFlags::printFlags(tty, false); |
1150 | 3374 vm_exit(0); |
3375 } | |
6197 | 3376 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3377 #if INCLUDE_NMT |
6197 | 3378 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3379 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3380 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
|
3381 "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
|
3382 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3383 #endif |
6197 | 3384 } |
3385 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3386 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3387 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3388 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3389 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3390 vm_exit(0); |
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 #endif |
564 | 3393 } |
3394 | |
3395 if (IgnoreUnrecognizedVMOptions) { | |
3396 // uncast const to modify the flag args->ignoreUnrecognized | |
3397 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3398 } | |
3399 | |
3400 // Parse specified settings file | |
3401 if (settings_file_specified) { | |
3402 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3403 return JNI_EINVAL; | |
3404 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3405 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3406 #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
|
3407 // Parse default .hotspotrc settings file |
0 | 3408 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3409 return JNI_EINVAL; | |
3410 } | |
6196
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
|
3411 #else |
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
|
3412 struct stat buf; |
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
|
3413 if (os::stat(hotspotrc, &buf) == 0) { |
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
|
3414 needs_hotspotrc_warning = true; |
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
|
3415 } |
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
|
3416 #endif |
0 | 3417 } |
3418 | |
3419 if (PrintVMOptions) { | |
3420 for (index = 0; index < args->nOptions; index++) { | |
3421 const JavaVMOption *option = args->options + index; | |
3422 if (match_option(option, "-XX:", &tail)) { | |
3423 logOption(tail); | |
3424 } | |
3425 } | |
3426 } | |
3427 | |
3428 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3429 jint result = parse_vm_init_args(args); | |
3430 if (result != JNI_OK) { | |
3431 return result; | |
3432 } | |
3433 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3434 // 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
|
3435 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3436 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3437 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3438 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
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10264
diff
changeset
|
3439 |
6196
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
|
3440 // 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
|
3441 // 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
|
3442 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
|
3443 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
|
3444 "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
|
3445 hotspotrc, hotspotrc); |
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
|
3446 } |
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
|
3447 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3448 #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
|
3449 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3450 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3451 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3452 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3453 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3454 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3455 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3456 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3457 |
0 | 3458 #ifndef PRODUCT |
3459 if (TraceBytecodesAt != 0) { | |
3460 TraceBytecodes = true; | |
3461 } | |
3462 if (CountCompiledCalls) { | |
3463 if (UseCounterDecay) { | |
3464 warning("UseCounterDecay disabled because CountCalls is set"); | |
3465 UseCounterDecay = false; | |
3466 } | |
3467 } | |
3468 #endif // PRODUCT | |
3469 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3470 // 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
|
3471 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3472 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3473 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3474 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
|
3475 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3476 EnableInvokeDynamic = false; |
710 | 3477 } |
3478 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3479 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3480 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3481 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3482 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
|
3483 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3484 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3485 } |
710 | 3486 |
0 | 3487 if (PrintGCDetails) { |
3488 // Turn on -verbose:gc options as well | |
3489 PrintGC = true; | |
3490 } | |
3491 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3492 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3493 // 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
|
3494 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3495 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3496 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3497 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3498 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3499 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3500 // 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
|
3501 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
|
3502 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3503 #if !INCLUDE_ALL_GCS |
1064 | 3504 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3505 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3506 #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
|
3507 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3508 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
|
3509 "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
|
3510 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3511 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3512 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
|
3513 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
|
3514 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
|
3515 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
|
3516 } |
0 | 3517 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3518 #endif // INCLUDE_CDS |
0 | 3519 |
3520 // Set flags based on ergonomics. | |
3521 set_ergonomics_flags(); | |
3522 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3523 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3524 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3525 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3526 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3527 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3528 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3529 |
1783 | 3530 if (TieredCompilation) { |
3531 set_tiered_flags(); | |
3532 } else { | |
3533 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3534 if (CompilationPolicyChoice >= 2) { | |
3535 vm_exit_during_initialization( | |
3536 "Incompatible compilation policy selected", NULL); | |
3537 } | |
3538 } | |
3539 | |
10990
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3540 set_heap_base_min_address(); |
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3541 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3542 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3543 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3544 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3545 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3546 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3547 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3548 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3549 } 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
|
3550 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3551 } 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
|
3552 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3553 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3554 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3555 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3556 check_deprecated_gcs(); |
8734 | 3557 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3558 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3559 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
|
3560 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
|
3561 " 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
|
3562 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3563 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3564 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3565 #else // INCLUDE_ALL_GCS |
0 | 3566 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3567 #endif // INCLUDE_ALL_GCS |
0 | 3568 |
3569 // Set bytecode rewriting flags | |
3570 set_bytecode_flags(); | |
3571 | |
3572 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3573 set_aggressive_opts_flags(); | |
3574 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3575 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3576 // 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
|
3577 // biased locking. |
2331 | 3578 if (UseHeavyMonitors |
3579 #ifdef COMPILER1 | |
3580 || !UseFastLocking | |
3581 #endif // COMPILER1 | |
3582 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3583 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3584 // 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
|
3585 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3586 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3587 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3588 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3589 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3590 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3591 |
0 | 3592 #ifdef CC_INTERP |
1131 | 3593 // Clear flags not supported by the C++ interpreter |
3594 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3595 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3596 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3597 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3598 #endif // CC_INTERP |
3599 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3600 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3601 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3602 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3603 } |
4777 | 3604 if (!EliminateLocks) { |
3605 EliminateNestedLocks = false; | |
3606 } | |
7473 | 3607 if (!Inline) { |
3608 IncrementalInline = false; | |
3609 } | |
3610 #ifndef PRODUCT | |
3611 if (!IncrementalInline) { | |
3612 AlwaysIncrementalInline = false; | |
3613 } | |
3614 #endif | |
3615 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3616 // incremental inlining: bump MaxNodeLimit | |
3617 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3618 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3619 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3620 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3621 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3622 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
|
3623 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3624 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3625 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3626 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3627 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3628 // 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
|
3629 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3630 NmethodSweepFraction = 1; |
99af867dfa05
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diff
changeset
|
3631 } |
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diff
changeset
|
3632 } |
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changeset
|
3633 #endif |
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changeset
|
3634 |
0 | 3635 if (PrintCommandLineFlags) { |
4773 | 3636 CommandLineFlags::printSetFlags(tty); |
0 | 3637 } |
3638 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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parents:
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diff
changeset
|
3639 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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diff
changeset
|
3640 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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diff
changeset
|
3641 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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parents:
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diff
changeset
|
3642 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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changeset
|
3643 UseBiasedLocking = false; |
126ea7725993
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bobv
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changeset
|
3644 } |
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6953477: Increase portability and flexibility of building Hotspot
bobv
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changeset
|
3645 } |
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6953477: Increase portability and flexibility of building Hotspot
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diff
changeset
|
3646 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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diff
changeset
|
3647 // set PauseAtExit if the gamma launcher was used and a debugger is attached |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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3648 // but only if not already set on the commandline |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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changeset
|
3649 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
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diff
changeset
|
3650 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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changeset
|
3651 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3652 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
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diff
changeset
|
3653 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3654 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3655 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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|
3656 |
0 | 3657 return JNI_OK; |
3658 } | |
3659 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3660 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
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diff
changeset
|
3661 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
changeset
|
3662 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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changeset
|
3663 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3664 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3665 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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changeset
|
3666 } |
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7198334: UseNUMA modifies system parameters on non-NUMA system
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changeset
|
3667 // For those collectors or operating systems (eg, Windows) that do |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3668 // not support full UseNUMA, we will map to UseNUMAInterleaving for now |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3669 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3670 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3671 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3672 #endif // INCLUDE_ALL_GCS |
7177
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7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3673 return JNI_OK; |
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7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
changeset
|
3674 } |
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|
3675 |
0 | 3676 int Arguments::PropertyList_count(SystemProperty* pl) { |
3677 int count = 0; | |
3678 while(pl != NULL) { | |
3679 count++; | |
3680 pl = pl->next(); | |
3681 } | |
3682 return count; | |
3683 } | |
3684 | |
3685 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3686 assert(key != NULL, "just checking"); | |
3687 SystemProperty* prop; | |
3688 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3689 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3690 } | |
3691 return NULL; | |
3692 } | |
3693 | |
3694 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3695 int count = 0; | |
3696 const char* ret_val = NULL; | |
3697 | |
3698 while(pl != NULL) { | |
3699 if(count >= index) { | |
3700 ret_val = pl->key(); | |
3701 break; | |
3702 } | |
3703 count++; | |
3704 pl = pl->next(); | |
3705 } | |
3706 | |
3707 return ret_val; | |
3708 } | |
3709 | |
3710 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3711 int count = 0; | |
3712 char* ret_val = NULL; | |
3713 | |
3714 while(pl != NULL) { | |
3715 if(count >= index) { | |
3716 ret_val = pl->value(); | |
3717 break; | |
3718 } | |
3719 count++; | |
3720 pl = pl->next(); | |
3721 } | |
3722 | |
3723 return ret_val; | |
3724 } | |
3725 | |
3726 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3727 SystemProperty* p = *plist; | |
3728 if (p == NULL) { | |
3729 *plist = new_p; | |
3730 } else { | |
3731 while (p->next() != NULL) { | |
3732 p = p->next(); | |
3733 } | |
3734 p->set_next(new_p); | |
3735 } | |
3736 } | |
3737 | |
3738 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3739 if (plist == NULL) | |
3740 return; | |
3741 | |
3742 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3743 PropertyList_add(plist, new_p); | |
3744 } | |
3745 | |
3746 // This add maintains unique property key in the list. | |
691 | 3747 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3748 if (plist == NULL) |
3749 return; | |
3750 | |
3751 // If property key exist then update with new value. | |
3752 SystemProperty* prop; | |
3753 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3754 if (strcmp(k, prop->key()) == 0) { | |
691 | 3755 if (append) { |
3756 prop->append_value(v); | |
3757 } else { | |
3758 prop->set_value(v); | |
3759 } | |
0 | 3760 return; |
3761 } | |
3762 } | |
3763 | |
3764 PropertyList_add(plist, k, v); | |
3765 } | |
3766 | |
3767 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3768 // Returns true if all of the source pointed by src has been copied over to | |
3769 // the destination buffer pointed by buf. Otherwise, returns false. | |
3770 // Notes: | |
3771 // 1. If the length (buflen) of the destination buffer excluding the | |
3772 // NULL terminator character is not long enough for holding the expanded | |
3773 // pid characters, it also returns false instead of returning the partially | |
3774 // expanded one. | |
3775 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3776 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3777 char* buf, size_t buflen) { | |
3778 const char* p = src; | |
3779 char* b = buf; | |
3780 const char* src_end = &src[srclen]; | |
3781 char* buf_end = &buf[buflen - 1]; | |
3782 | |
3783 while (p < src_end && b < buf_end) { | |
3784 if (*p == '%') { | |
3785 switch (*(++p)) { | |
3786 case '%': // "%%" ==> "%" | |
3787 *b++ = *p++; | |
3788 break; | |
3789 case 'p': { // "%p" ==> current process id | |
3790 // buf_end points to the character before the last character so | |
3791 // that we could write '\0' to the end of the buffer. | |
3792 size_t buf_sz = buf_end - b + 1; | |
3793 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3794 | |
3795 // if jio_snprintf fails or the buffer is not long enough to hold | |
3796 // the expanded pid, returns false. | |
3797 if (ret < 0 || ret >= (int)buf_sz) { | |
3798 return false; | |
3799 } else { | |
3800 b += ret; | |
3801 assert(*b == '\0', "fail in copy_expand_pid"); | |
3802 if (p == src_end && b == buf_end + 1) { | |
3803 // reach the end of the buffer. | |
3804 return true; | |
3805 } | |
3806 } | |
3807 p++; | |
3808 break; | |
3809 } | |
3810 default : | |
3811 *b++ = '%'; | |
3812 } | |
3813 } else { | |
3814 *b++ = *p++; | |
3815 } | |
3816 } | |
3817 *b = '\0'; | |
3818 return (p == src_end); // return false if not all of the source was copied | |
3819 } |