Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/arguments.cpp @ 14354:5e1086b5b726
Merge
author | ehelin |
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date | Mon, 10 Feb 2014 13:31:22 +0100 |
parents | 47ee29d0e3f7 1020b892787b |
children | 8a9bb7821e28 de7f1b016d55 |
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" | |
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31 #include "memory/genCollectedHeap.hpp" |
1972 | 32 #include "memory/referenceProcessor.hpp" |
33 #include "memory/universe.inline.hpp" | |
34 #include "oops/oop.inline.hpp" | |
35 #include "prims/jvmtiExport.hpp" | |
36 #include "runtime/arguments.hpp" | |
37 #include "runtime/globals_extension.hpp" | |
38 #include "runtime/java.hpp" | |
39 #include "services/management.hpp" | |
6197 | 40 #include "services/memTracker.hpp" |
1972 | 41 #include "utilities/defaultStream.hpp" |
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42 #include "utilities/macros.hpp" |
1972 | 43 #include "utilities/taskqueue.hpp" |
44 #ifdef TARGET_OS_FAMILY_linux | |
45 # include "os_linux.inline.hpp" | |
46 #endif | |
47 #ifdef TARGET_OS_FAMILY_solaris | |
48 # include "os_solaris.inline.hpp" | |
49 #endif | |
50 #ifdef TARGET_OS_FAMILY_windows | |
51 # include "os_windows.inline.hpp" | |
52 #endif | |
3960 | 53 #ifdef TARGET_OS_FAMILY_bsd |
54 # include "os_bsd.inline.hpp" | |
55 #endif | |
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56 #if INCLUDE_ALL_GCS |
1972 | 57 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
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58 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
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59 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" |
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60 #endif // INCLUDE_ALL_GCS |
0 | 61 |
2474 | 62 // Note: This is a special bug reporting site for the JVM |
63 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 64 #define DEFAULT_JAVA_LAUNCHER "generic" |
65 | |
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66 // Disable options not supported in this release, with a warning if they |
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67 // were explicitly requested on the command-line |
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68 #define UNSUPPORTED_OPTION(opt, description) \ |
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69 do { \ |
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70 if (opt) { \ |
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71 if (FLAG_IS_CMDLINE(opt)) { \ |
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72 warning(description " is disabled in this release."); \ |
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73 } \ |
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74 FLAG_SET_DEFAULT(opt, false); \ |
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75 } \ |
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76 } while(0) |
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77 |
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78 #define UNSUPPORTED_GC_OPTION(gc) \ |
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79 do { \ |
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80 if (gc) { \ |
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81 if (FLAG_IS_CMDLINE(gc)) { \ |
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82 warning(#gc " is not supported in this VM. Using Serial GC."); \ |
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83 } \ |
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84 FLAG_SET_DEFAULT(gc, false); \ |
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85 } \ |
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86 } while(0) |
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87 |
0 | 88 char** Arguments::_jvm_flags_array = NULL; |
89 int Arguments::_num_jvm_flags = 0; | |
90 char** Arguments::_jvm_args_array = NULL; | |
91 int Arguments::_num_jvm_args = 0; | |
92 char* Arguments::_java_command = NULL; | |
93 SystemProperty* Arguments::_system_properties = NULL; | |
94 const char* Arguments::_gc_log_filename = NULL; | |
95 bool Arguments::_has_profile = false; | |
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96 size_t Arguments::_conservative_max_heap_alignment = 0; |
0 | 97 uintx Arguments::_min_heap_size = 0; |
98 Arguments::Mode Arguments::_mode = _mixed; | |
99 bool Arguments::_java_compiler = false; | |
100 bool Arguments::_xdebug_mode = false; | |
101 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
102 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
103 int Arguments::_sun_java_launcher_pid = -1; | |
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104 bool Arguments::_sun_java_launcher_is_altjvm = false; |
0 | 105 |
106 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
107 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
108 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
109 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
110 bool Arguments::_ClipInlining = ClipInlining; | |
111 | |
112 char* Arguments::SharedArchivePath = NULL; | |
113 | |
114 AgentLibraryList Arguments::_libraryList; | |
115 AgentLibraryList Arguments::_agentList; | |
116 | |
117 abort_hook_t Arguments::_abort_hook = NULL; | |
118 exit_hook_t Arguments::_exit_hook = NULL; | |
119 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
120 | |
121 | |
122 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
123 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
124 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
125 SystemProperty *Arguments::_java_library_path = NULL; | |
126 SystemProperty *Arguments::_java_home = NULL; | |
127 SystemProperty *Arguments::_java_class_path = NULL; | |
128 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
129 | |
130 char* Arguments::_meta_index_path = NULL; | |
131 char* Arguments::_meta_index_dir = NULL; | |
132 | |
133 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
134 | |
135 static bool match_option(const JavaVMOption *option, const char* name, | |
136 const char** tail) { | |
137 int len = (int)strlen(name); | |
138 if (strncmp(option->optionString, name, len) == 0) { | |
139 *tail = option->optionString + len; | |
140 return true; | |
141 } else { | |
142 return false; | |
143 } | |
144 } | |
145 | |
146 static void logOption(const char* opt) { | |
147 if (PrintVMOptions) { | |
148 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
149 } | |
150 } | |
151 | |
152 // Process java launcher properties. | |
153 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
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154 // See if sun.java.launcher, sun.java.launcher.is_altjvm or |
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155 // sun.java.launcher.pid is defined. |
0 | 156 // Must do this before setting up other system properties, |
157 // as some of them may depend on launcher type. | |
158 for (int index = 0; index < args->nOptions; index++) { | |
159 const JavaVMOption* option = args->options + index; | |
160 const char* tail; | |
161 | |
162 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
163 process_java_launcher_argument(tail, option->extraInfo); | |
164 continue; | |
165 } | |
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166 if (match_option(option, "-Dsun.java.launcher.is_altjvm=", &tail)) { |
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167 if (strcmp(tail, "true") == 0) { |
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168 _sun_java_launcher_is_altjvm = true; |
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169 } |
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170 continue; |
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171 } |
0 | 172 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { |
173 _sun_java_launcher_pid = atoi(tail); | |
174 continue; | |
175 } | |
176 } | |
177 } | |
178 | |
179 // Initialize system properties key and value. | |
180 void Arguments::init_system_properties() { | |
181 | |
182 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
183 "Java Virtual Machine Specification", false)); | |
184 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
185 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
186 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
187 | |
14309 | 188 // Following are JVMTI agent writable properties. |
0 | 189 // Properties values are set to NULL and they are |
190 // os specific they are initialized in os::init_system_properties_values(). | |
191 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
192 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
193 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
194 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
195 _java_home = new SystemProperty("java.home", NULL, true); | |
196 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
197 | |
198 _java_class_path = new SystemProperty("java.class.path", "", true); | |
199 | |
200 // Add to System Property list. | |
201 PropertyList_add(&_system_properties, _java_ext_dirs); | |
202 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
203 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
204 PropertyList_add(&_system_properties, _java_library_path); | |
205 PropertyList_add(&_system_properties, _java_home); | |
206 PropertyList_add(&_system_properties, _java_class_path); | |
207 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
208 | |
209 // Set OS specific system properties values | |
210 os::init_system_properties_values(); | |
211 } | |
212 | |
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213 |
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214 // Update/Initialize System properties after JDK version number is known |
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215 void Arguments::init_version_specific_system_properties() { |
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216 enum { bufsz = 16 }; |
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217 char buffer[bufsz]; |
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218 const char* spec_vendor = "Sun Microsystems Inc."; |
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219 uint32_t spec_version = 0; |
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220 |
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221 if (JDK_Version::is_gte_jdk17x_version()) { |
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222 spec_vendor = "Oracle Corporation"; |
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223 spec_version = JDK_Version::current().major_version(); |
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224 } |
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225 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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226 |
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227 PropertyList_add(&_system_properties, |
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228 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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229 PropertyList_add(&_system_properties, |
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230 new SystemProperty("java.vm.specification.version", buffer, false)); |
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231 PropertyList_add(&_system_properties, |
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232 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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233 } |
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234 |
242 | 235 /** |
236 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
237 * When a flag is eliminated, it can be added to this list in order to | |
238 * continue accepting this flag on the command-line, while issuing a warning | |
239 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
240 * limit, we flatly refuse to admit the existence of the flag. This allows | |
241 * a flag to die correctly over JDK releases using HSX. | |
242 */ | |
243 typedef struct { | |
244 const char* name; | |
245 JDK_Version obsoleted_in; // when the flag went away | |
246 JDK_Version accept_until; // which version to start denying the existence | |
247 } ObsoleteFlag; | |
0 | 248 |
242 | 249 static ObsoleteFlag obsolete_jvm_flags[] = { |
250 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
251 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
252 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
253 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
254 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
255 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
256 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
257 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
258 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
259 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
260 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
261 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
262 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
263 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 264 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
265 { "DefaultInitialRAMFraction", | |
266 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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267 { "UseDepthFirstScavengeOrder", |
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268 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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269 { "HandlePromotionFailure", |
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270 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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271 { "MaxLiveObjectEvacuationRatio", |
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272 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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273 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
3251
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274 { "UseParallelOldGCCompacting", |
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275 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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276 { "UseParallelDensePrefixUpdate", |
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277 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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278 { "UseParallelOldGCDensePrefix", |
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279 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 280 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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281 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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282 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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283 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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284 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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285 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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286 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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287 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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288 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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289 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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290 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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291 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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292 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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293 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 294 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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295 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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296 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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297 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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298 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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299 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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300 #ifdef PRODUCT |
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301 { "DesiredMethodLimit", |
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302 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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303 #endif // PRODUCT |
242 | 304 { NULL, JDK_Version(0), JDK_Version(0) } |
305 }; | |
306 | |
307 // Returns true if the flag is obsolete and fits into the range specified | |
308 // for being ignored. In the case that the flag is ignored, the 'version' | |
309 // value is filled in with the version number when the flag became | |
310 // obsolete so that that value can be displayed to the user. | |
311 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 312 int i = 0; |
242 | 313 assert(version != NULL, "Must provide a version buffer"); |
314 while (obsolete_jvm_flags[i].name != NULL) { | |
315 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 316 // <flag>=xxx form |
317 // [-|+]<flag> form | |
242 | 318 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 319 ((s[0] == '+' || s[0] == '-') && |
242 | 320 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
321 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
322 *version = flag_status.obsoleted_in; | |
323 return true; | |
324 } | |
0 | 325 } |
326 i++; | |
327 } | |
328 return false; | |
329 } | |
330 | |
331 // Constructs the system class path (aka boot class path) from the following | |
332 // components, in order: | |
333 // | |
334 // prefix // from -Xbootclasspath/p:... | |
335 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
336 // base // from os::get_system_properties() or -Xbootclasspath= | |
337 // suffix // from -Xbootclasspath/a:... | |
338 // | |
339 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
340 // directories are added to the sysclasspath just before the base. | |
341 // | |
342 // This could be AllStatic, but it isn't needed after argument processing is | |
343 // complete. | |
344 class SysClassPath: public StackObj { | |
345 public: | |
346 SysClassPath(const char* base); | |
347 ~SysClassPath(); | |
348 | |
349 inline void set_base(const char* base); | |
350 inline void add_prefix(const char* prefix); | |
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351 inline void add_suffix_to_prefix(const char* suffix); |
0 | 352 inline void add_suffix(const char* suffix); |
353 inline void reset_path(const char* base); | |
354 | |
355 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
356 // property. Must be called after all command-line arguments have been | |
357 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
358 // combined_path(). | |
359 void expand_endorsed(); | |
360 | |
361 inline const char* get_base() const { return _items[_scp_base]; } | |
362 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
363 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
364 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
365 | |
366 // Combine all the components into a single c-heap-allocated string; caller | |
367 // must free the string if/when no longer needed. | |
368 char* combined_path(); | |
369 | |
370 private: | |
371 // Utility routines. | |
372 static char* add_to_path(const char* path, const char* str, bool prepend); | |
373 static char* add_jars_to_path(char* path, const char* directory); | |
374 | |
375 inline void reset_item_at(int index); | |
376 | |
377 // Array indices for the items that make up the sysclasspath. All except the | |
378 // base are allocated in the C heap and freed by this class. | |
379 enum { | |
380 _scp_prefix, // from -Xbootclasspath/p:... | |
381 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
382 _scp_base, // the default sysclasspath | |
383 _scp_suffix, // from -Xbootclasspath/a:... | |
384 _scp_nitems // the number of items, must be last. | |
385 }; | |
386 | |
387 const char* _items[_scp_nitems]; | |
388 DEBUG_ONLY(bool _expansion_done;) | |
389 }; | |
390 | |
391 SysClassPath::SysClassPath(const char* base) { | |
392 memset(_items, 0, sizeof(_items)); | |
393 _items[_scp_base] = base; | |
394 DEBUG_ONLY(_expansion_done = false;) | |
395 } | |
396 | |
397 SysClassPath::~SysClassPath() { | |
398 // Free everything except the base. | |
399 for (int i = 0; i < _scp_nitems; ++i) { | |
400 if (i != _scp_base) reset_item_at(i); | |
401 } | |
402 DEBUG_ONLY(_expansion_done = false;) | |
403 } | |
404 | |
405 inline void SysClassPath::set_base(const char* base) { | |
406 _items[_scp_base] = base; | |
407 } | |
408 | |
409 inline void SysClassPath::add_prefix(const char* prefix) { | |
410 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
411 } | |
412 | |
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413 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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414 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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415 } |
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416 |
0 | 417 inline void SysClassPath::add_suffix(const char* suffix) { |
418 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
419 } | |
420 | |
421 inline void SysClassPath::reset_item_at(int index) { | |
422 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
423 if (_items[index] != NULL) { | |
6197 | 424 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 425 _items[index] = NULL; |
426 } | |
427 } | |
428 | |
429 inline void SysClassPath::reset_path(const char* base) { | |
430 // Clear the prefix and suffix. | |
431 reset_item_at(_scp_prefix); | |
432 reset_item_at(_scp_suffix); | |
433 set_base(base); | |
434 } | |
435 | |
436 //------------------------------------------------------------------------------ | |
437 | |
438 void SysClassPath::expand_endorsed() { | |
439 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
440 | |
441 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
442 if (path == NULL) { | |
443 path = Arguments::get_endorsed_dir(); | |
444 assert(path != NULL, "no default for java.endorsed.dirs"); | |
445 } | |
446 | |
447 char* expanded_path = NULL; | |
448 const char separator = *os::path_separator(); | |
449 const char* const end = path + strlen(path); | |
450 while (path < end) { | |
451 const char* tmp_end = strchr(path, separator); | |
452 if (tmp_end == NULL) { | |
453 expanded_path = add_jars_to_path(expanded_path, path); | |
454 path = end; | |
455 } else { | |
6197 | 456 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 457 memcpy(dirpath, path, tmp_end - path); |
458 dirpath[tmp_end - path] = '\0'; | |
459 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 460 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 461 path = tmp_end + 1; |
462 } | |
463 } | |
464 _items[_scp_endorsed] = expanded_path; | |
465 DEBUG_ONLY(_expansion_done = true;) | |
466 } | |
467 | |
468 // Combine the bootclasspath elements, some of which may be null, into a single | |
469 // c-heap-allocated string. | |
470 char* SysClassPath::combined_path() { | |
471 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
472 assert(_expansion_done, "must call expand_endorsed() first."); | |
473 | |
474 size_t lengths[_scp_nitems]; | |
475 size_t total_len = 0; | |
476 | |
477 const char separator = *os::path_separator(); | |
478 | |
479 // Get the lengths. | |
480 int i; | |
481 for (i = 0; i < _scp_nitems; ++i) { | |
482 if (_items[i] != NULL) { | |
483 lengths[i] = strlen(_items[i]); | |
484 // Include space for the separator char (or a NULL for the last item). | |
485 total_len += lengths[i] + 1; | |
486 } | |
487 } | |
488 assert(total_len > 0, "empty sysclasspath not allowed"); | |
489 | |
490 // Copy the _items to a single string. | |
6197 | 491 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 492 char* cp_tmp = cp; |
493 for (i = 0; i < _scp_nitems; ++i) { | |
494 if (_items[i] != NULL) { | |
495 memcpy(cp_tmp, _items[i], lengths[i]); | |
496 cp_tmp += lengths[i]; | |
497 *cp_tmp++ = separator; | |
498 } | |
499 } | |
500 *--cp_tmp = '\0'; // Replace the extra separator. | |
501 return cp; | |
502 } | |
503 | |
504 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
505 char* | |
506 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
507 char *cp; | |
508 | |
509 assert(str != NULL, "just checking"); | |
510 if (path == NULL) { | |
511 size_t len = strlen(str) + 1; | |
6197 | 512 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 513 memcpy(cp, str, len); // copy the trailing null |
514 } else { | |
515 const char separator = *os::path_separator(); | |
516 size_t old_len = strlen(path); | |
517 size_t str_len = strlen(str); | |
518 size_t len = old_len + str_len + 2; | |
519 | |
520 if (prepend) { | |
6197 | 521 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 522 char* cp_tmp = cp; |
523 memcpy(cp_tmp, str, str_len); | |
524 cp_tmp += str_len; | |
525 *cp_tmp = separator; | |
526 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 527 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 528 } else { |
6197 | 529 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 530 char* cp_tmp = cp + old_len; |
531 *cp_tmp = separator; | |
532 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
533 } | |
534 } | |
535 return cp; | |
536 } | |
537 | |
538 // Scan the directory and append any jar or zip files found to path. | |
539 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
540 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
541 DIR* dir = os::opendir(directory); | |
542 if (dir == NULL) return path; | |
543 | |
544 char dir_sep[2] = { '\0', '\0' }; | |
545 size_t directory_len = strlen(directory); | |
546 const char fileSep = *os::file_separator(); | |
547 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
548 | |
549 /* Scan the directory for jars/zips, appending them to path. */ | |
550 struct dirent *entry; | |
6197 | 551 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 552 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
553 const char* name = entry->d_name; | |
554 const char* ext = name + strlen(name) - 4; | |
555 bool isJarOrZip = ext > name && | |
556 (os::file_name_strcmp(ext, ".jar") == 0 || | |
557 os::file_name_strcmp(ext, ".zip") == 0); | |
558 if (isJarOrZip) { | |
6197 | 559 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 560 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
561 path = add_to_path(path, jarpath, false); | |
6197 | 562 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 563 } |
564 } | |
6197 | 565 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 566 os::closedir(dir); |
567 return path; | |
568 } | |
569 | |
570 // Parses a memory size specification string. | |
489
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571 static bool atomull(const char *s, julong* result) { |
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572 julong n = 0; |
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573 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 574 if (args_read != 1) { |
575 return false; | |
576 } | |
577 while (*s != '\0' && isdigit(*s)) { | |
578 s++; | |
579 } | |
580 // 4705540: illegal if more characters are found after the first non-digit | |
581 if (strlen(s) > 1) { | |
582 return false; | |
583 } | |
584 switch (*s) { | |
585 case 'T': case 't': | |
586 *result = n * G * K; | |
489
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587 // Check for overflow. |
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588 if (*result/((julong)G * K) != n) return false; |
0 | 589 return true; |
590 case 'G': case 'g': | |
591 *result = n * G; | |
489
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592 if (*result/G != n) return false; |
0 | 593 return true; |
594 case 'M': case 'm': | |
595 *result = n * M; | |
489
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596 if (*result/M != n) return false; |
0 | 597 return true; |
598 case 'K': case 'k': | |
599 *result = n * K; | |
489
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600 if (*result/K != n) return false; |
0 | 601 return true; |
602 case '\0': | |
603 *result = n; | |
604 return true; | |
605 default: | |
606 return false; | |
607 } | |
608 } | |
609 | |
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610 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 611 if (size < min_size) return arg_too_small; |
612 // Check that size will fit in a size_t (only relevant on 32-bit) | |
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613 if (size > max_uintx) return arg_too_big; |
0 | 614 return arg_in_range; |
615 } | |
616 | |
617 // Describe an argument out of range error | |
618 void Arguments::describe_range_error(ArgsRange errcode) { | |
619 switch(errcode) { | |
620 case arg_too_big: | |
621 jio_fprintf(defaultStream::error_stream(), | |
622 "The specified size exceeds the maximum " | |
623 "representable size.\n"); | |
624 break; | |
625 case arg_too_small: | |
626 case arg_unreadable: | |
627 case arg_in_range: | |
628 // do nothing for now | |
629 break; | |
630 default: | |
631 ShouldNotReachHere(); | |
632 } | |
633 } | |
634 | |
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635 static bool set_bool_flag(char* name, bool value, Flag::Flags origin) { |
0 | 636 return CommandLineFlags::boolAtPut(name, &value, origin); |
637 } | |
638 | |
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639 static bool set_fp_numeric_flag(char* name, char* value, Flag::Flags origin) { |
0 | 640 double v; |
641 if (sscanf(value, "%lf", &v) != 1) { | |
642 return false; | |
643 } | |
644 | |
645 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
646 return true; | |
647 } | |
648 return false; | |
649 } | |
650 | |
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651 static bool set_numeric_flag(char* name, char* value, Flag::Flags origin) { |
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652 julong v; |
0 | 653 intx intx_v; |
654 bool is_neg = false; | |
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655 // Check the sign first since atomull() parses only unsigned values. |
0 | 656 if (*value == '-') { |
657 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
658 return false; | |
659 } | |
660 value++; | |
661 is_neg = true; | |
662 } | |
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663 if (!atomull(value, &v)) { |
0 | 664 return false; |
665 } | |
666 intx_v = (intx) v; | |
667 if (is_neg) { | |
668 intx_v = -intx_v; | |
669 } | |
670 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
671 return true; | |
672 } | |
673 uintx uintx_v = (uintx) v; | |
674 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
675 return true; | |
676 } | |
1064 | 677 uint64_t uint64_t_v = (uint64_t) v; |
678 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
679 return true; | |
680 } | |
0 | 681 return false; |
682 } | |
683 | |
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684 static bool set_string_flag(char* name, const char* value, Flag::Flags origin) { |
0 | 685 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; |
686 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 687 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 688 return true; |
689 } | |
690 | |
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691 static bool append_to_string_flag(char* name, const char* new_value, Flag::Flags origin) { |
0 | 692 const char* old_value = ""; |
693 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
694 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
695 size_t new_len = strlen(new_value); | |
696 const char* value; | |
697 char* free_this_too = NULL; | |
698 if (old_len == 0) { | |
699 value = new_value; | |
700 } else if (new_len == 0) { | |
701 value = old_value; | |
702 } else { | |
6197 | 703 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 704 // each new setting adds another LINE to the switch: |
705 sprintf(buf, "%s\n%s", old_value, new_value); | |
706 value = buf; | |
707 free_this_too = buf; | |
708 } | |
709 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
710 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 711 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 712 if (free_this_too != NULL) { |
713 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 714 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 715 } |
716 return true; | |
717 } | |
718 | |
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719 bool Arguments::parse_argument(const char* arg, Flag::Flags origin) { |
0 | 720 |
721 // range of acceptable characters spelled out for portability reasons | |
722 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
723 #define BUFLEN 255 | |
724 char name[BUFLEN+1]; | |
725 char dummy; | |
726 | |
727 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
728 return set_bool_flag(name, false, origin); | |
729 } | |
730 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
731 return set_bool_flag(name, true, origin); | |
732 } | |
733 | |
734 char punct; | |
735 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
736 const char* value = strchr(arg, '=') + 1; | |
737 Flag* flag = Flag::find_flag(name, strlen(name)); | |
738 if (flag != NULL && flag->is_ccstr()) { | |
739 if (flag->ccstr_accumulates()) { | |
740 return append_to_string_flag(name, value, origin); | |
741 } else { | |
742 if (value[0] == '\0') { | |
743 value = NULL; | |
744 } | |
745 return set_string_flag(name, value, origin); | |
746 } | |
747 } | |
748 } | |
749 | |
750 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
751 const char* value = strchr(arg, '=') + 1; | |
752 // -XX:Foo:=xxx will reset the string flag to the given value. | |
753 if (value[0] == '\0') { | |
754 value = NULL; | |
755 } | |
756 return set_string_flag(name, value, origin); | |
757 } | |
758 | |
759 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
760 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
761 #define NUMBER_RANGE "[0123456789]" | |
762 char value[BUFLEN + 1]; | |
763 char value2[BUFLEN + 1]; | |
764 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
765 // Looks like a floating-point number -- try again with more lenient format string | |
766 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
767 return set_fp_numeric_flag(name, value, origin); | |
768 } | |
769 } | |
770 | |
771 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
772 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
773 return set_numeric_flag(name, value, origin); | |
774 } | |
775 | |
776 return false; | |
777 } | |
778 | |
779 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
780 assert(bldarray != NULL, "illegal argument"); | |
781 | |
782 if (arg == NULL) { | |
783 return; | |
784 } | |
785 | |
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786 int new_count = *count + 1; |
0 | 787 |
788 // expand the array and add arg to the last element | |
789 if (*bldarray == NULL) { | |
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790 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 791 } else { |
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792 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 793 } |
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794 (*bldarray)[*count] = strdup(arg); |
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795 *count = new_count; |
0 | 796 } |
797 | |
798 void Arguments::build_jvm_args(const char* arg) { | |
799 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
800 } | |
801 | |
802 void Arguments::build_jvm_flags(const char* arg) { | |
803 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
804 } | |
805 | |
806 // utility function to return a string that concatenates all | |
807 // strings in a given char** array | |
808 const char* Arguments::build_resource_string(char** args, int count) { | |
809 if (args == NULL || count == 0) { | |
810 return NULL; | |
811 } | |
812 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
813 for (int i = 1; i < count; i++) { | |
814 length += strlen(args[i]) + 1; // add 1 for a space | |
815 } | |
816 char* s = NEW_RESOURCE_ARRAY(char, length); | |
817 strcpy(s, args[0]); | |
818 for (int j = 1; j < count; j++) { | |
819 strcat(s, " "); | |
820 strcat(s, args[j]); | |
821 } | |
822 return (const char*) s; | |
823 } | |
824 | |
825 void Arguments::print_on(outputStream* st) { | |
826 st->print_cr("VM Arguments:"); | |
827 if (num_jvm_flags() > 0) { | |
828 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
829 } | |
830 if (num_jvm_args() > 0) { | |
831 st->print("jvm_args: "); print_jvm_args_on(st); | |
832 } | |
833 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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834 if (_java_class_path != NULL) { |
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835 char* path = _java_class_path->value(); |
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836 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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837 } |
0 | 838 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
839 } | |
840 | |
841 void Arguments::print_jvm_flags_on(outputStream* st) { | |
842 if (_num_jvm_flags > 0) { | |
843 for (int i=0; i < _num_jvm_flags; i++) { | |
844 st->print("%s ", _jvm_flags_array[i]); | |
845 } | |
846 st->print_cr(""); | |
847 } | |
848 } | |
849 | |
850 void Arguments::print_jvm_args_on(outputStream* st) { | |
851 if (_num_jvm_args > 0) { | |
852 for (int i=0; i < _num_jvm_args; i++) { | |
853 st->print("%s ", _jvm_args_array[i]); | |
854 } | |
855 st->print_cr(""); | |
856 } | |
857 } | |
858 | |
242 | 859 bool Arguments::process_argument(const char* arg, |
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860 jboolean ignore_unrecognized, Flag::Flags origin) { |
242 | 861 |
862 JDK_Version since = JDK_Version(); | |
0 | 863 |
3250 | 864 if (parse_argument(arg, origin) || ignore_unrecognized) { |
865 return true; | |
0 | 866 } |
3250 | 867 |
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868 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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869 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 870 if (is_newly_obsolete(arg, &since)) { |
871 char version[256]; | |
872 since.to_string(version, sizeof(version)); | |
873 warning("ignoring option %s; support was removed in %s", argname, version); | |
874 return true; | |
875 } | |
876 | |
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877 // For locked flags, report a custom error message if available. |
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878 // Otherwise, report the standard unrecognized VM option. |
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879 |
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880 size_t arg_len; |
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881 const char* equal_sign = strchr(argname, '='); |
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882 if (equal_sign == NULL) { |
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883 arg_len = strlen(argname); |
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884 } else { |
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885 arg_len = equal_sign - argname; |
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886 } |
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887 |
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888 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true, true); |
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889 if (found_flag != NULL) { |
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890 char locked_message_buf[BUFLEN]; |
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891 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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892 if (strlen(locked_message_buf) == 0) { |
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893 if (found_flag->is_bool() && !has_plus_minus) { |
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894 jio_fprintf(defaultStream::error_stream(), |
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895 "Missing +/- setting for VM option '%s'\n", argname); |
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896 } else if (!found_flag->is_bool() && has_plus_minus) { |
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897 jio_fprintf(defaultStream::error_stream(), |
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898 "Unexpected +/- setting in VM option '%s'\n", argname); |
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899 } else { |
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900 jio_fprintf(defaultStream::error_stream(), |
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901 "Improperly specified VM option '%s'\n", argname); |
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902 } |
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903 } else { |
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904 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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905 } |
6017 | 906 } else { |
907 jio_fprintf(defaultStream::error_stream(), | |
908 "Unrecognized VM option '%s'\n", argname); | |
11070 | 909 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
910 if (fuzzy_matched != NULL) { | |
911 jio_fprintf(defaultStream::error_stream(), | |
912 "Did you mean '%s%s%s'?\n", | |
913 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
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914 fuzzy_matched->_name, |
11070 | 915 (fuzzy_matched->is_bool()) ? "" : "=<value>"); |
916 } | |
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917 } |
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918 |
3250 | 919 // allow for commandline "commenting out" options like -XX:#+Verbose |
920 return arg[0] == '#'; | |
0 | 921 } |
922 | |
923 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
924 FILE* stream = fopen(file_name, "rb"); | |
925 if (stream == NULL) { | |
926 if (should_exist) { | |
927 jio_fprintf(defaultStream::error_stream(), | |
928 "Could not open settings file %s\n", file_name); | |
929 return false; | |
930 } else { | |
931 return true; | |
932 } | |
933 } | |
934 | |
935 char token[1024]; | |
936 int pos = 0; | |
937 | |
938 bool in_white_space = true; | |
939 bool in_comment = false; | |
940 bool in_quote = false; | |
941 char quote_c = 0; | |
942 bool result = true; | |
943 | |
944 int c = getc(stream); | |
6901 | 945 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 946 if (in_white_space) { |
947 if (in_comment) { | |
948 if (c == '\n') in_comment = false; | |
949 } else { | |
950 if (c == '#') in_comment = true; | |
951 else if (!isspace(c)) { | |
952 in_white_space = false; | |
953 token[pos++] = c; | |
954 } | |
955 } | |
956 } else { | |
957 if (c == '\n' || (!in_quote && isspace(c))) { | |
958 // token ends at newline, or at unquoted whitespace | |
959 // this allows a way to include spaces in string-valued options | |
960 token[pos] = '\0'; | |
961 logOption(token); | |
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962 result &= process_argument(token, ignore_unrecognized, Flag::CONFIG_FILE); |
0 | 963 build_jvm_flags(token); |
964 pos = 0; | |
965 in_white_space = true; | |
966 in_quote = false; | |
967 } else if (!in_quote && (c == '\'' || c == '"')) { | |
968 in_quote = true; | |
969 quote_c = c; | |
970 } else if (in_quote && (c == quote_c)) { | |
971 in_quote = false; | |
972 } else { | |
973 token[pos++] = c; | |
974 } | |
975 } | |
976 c = getc(stream); | |
977 } | |
978 if (pos > 0) { | |
979 token[pos] = '\0'; | |
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980 result &= process_argument(token, ignore_unrecognized, Flag::CONFIG_FILE); |
0 | 981 build_jvm_flags(token); |
982 } | |
983 fclose(stream); | |
984 return result; | |
985 } | |
986 | |
987 //============================================================================================================= | |
988 // Parsing of properties (-D) | |
989 | |
990 const char* Arguments::get_property(const char* key) { | |
991 return PropertyList_get_value(system_properties(), key); | |
992 } | |
993 | |
994 bool Arguments::add_property(const char* prop) { | |
995 const char* eq = strchr(prop, '='); | |
996 char* key; | |
997 // ns must be static--its address may be stored in a SystemProperty object. | |
998 const static char ns[1] = {0}; | |
999 char* value = (char *)ns; | |
1000 | |
1001 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 1002 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 1003 strncpy(key, prop, key_len); |
1004 key[key_len] = '\0'; | |
1005 | |
1006 if (eq != NULL) { | |
1007 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 1008 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 1009 strncpy(value, &prop[key_len + 1], value_len + 1); |
1010 } | |
1011 | |
1012 if (strcmp(key, "java.compiler") == 0) { | |
1013 process_java_compiler_argument(value); | |
1014 FreeHeap(key); | |
1015 if (eq != NULL) { | |
1016 FreeHeap(value); | |
1017 } | |
1018 return true; | |
691 | 1019 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 1020 _java_command = value; |
1021 | |
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1022 // Record value in Arguments, but let it get passed to Java. |
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1023 } else if (strcmp(key, "sun.java.launcher.is_altjvm") == 0 || |
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1024 strcmp(key, "sun.java.launcher.pid") == 0) { |
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1025 // sun.java.launcher.is_altjvm and sun.java.launcher.pid property are |
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1026 // private and are processed in process_sun_java_launcher_properties(); |
0 | 1027 // the sun.java.launcher property is passed on to the java application |
1028 FreeHeap(key); | |
1029 if (eq != NULL) { | |
1030 FreeHeap(value); | |
1031 } | |
1032 return true; | |
691 | 1033 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 1034 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1035 // its value without going through the property list or making a Java call. | |
1036 _java_vendor_url_bug = value; | |
691 | 1037 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1038 PropertyList_unique_add(&_system_properties, key, value, true); | |
1039 return true; | |
0 | 1040 } |
1041 // Create new property and add at the end of the list | |
1042 PropertyList_unique_add(&_system_properties, key, value); | |
1043 return true; | |
1044 } | |
1045 | |
1046 //=========================================================================================================== | |
1047 // Setting int/mixed/comp mode flags | |
1048 | |
1049 void Arguments::set_mode_flags(Mode mode) { | |
1050 // Set up default values for all flags. | |
1051 // If you add a flag to any of the branches below, | |
1052 // add a default value for it here. | |
1053 set_java_compiler(false); | |
1054 _mode = mode; | |
1055 | |
1056 // Ensure Agent_OnLoad has the correct initial values. | |
1057 // This may not be the final mode; mode may change later in onload phase. | |
1058 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1059 (char*)VM_Version::vm_info_string(), false); |
0 | 1060 |
1061 UseInterpreter = true; | |
1062 UseCompiler = true; | |
1063 UseLoopCounter = true; | |
1064 | |
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1065 #ifndef ZERO |
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1066 // Turn these off for mixed and comp. Leave them on for Zero. |
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1067 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1068 UseFastAccessorMethods = (mode == _int); |
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1069 } |
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1070 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1071 UseFastEmptyMethods = (mode == _int); |
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1072 } |
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1073 #endif |
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1074 |
0 | 1075 // Default values may be platform/compiler dependent - |
1076 // use the saved values | |
1077 ClipInlining = Arguments::_ClipInlining; | |
1078 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1079 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1080 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1081 | |
1082 // Change from defaults based on mode | |
1083 switch (mode) { | |
1084 default: | |
1085 ShouldNotReachHere(); | |
1086 break; | |
1087 case _int: | |
1088 UseCompiler = false; | |
1089 UseLoopCounter = false; | |
1090 AlwaysCompileLoopMethods = false; | |
1091 UseOnStackReplacement = false; | |
1092 break; | |
1093 case _mixed: | |
1094 // same as default | |
1095 break; | |
1096 case _comp: | |
1097 UseInterpreter = false; | |
1098 BackgroundCompilation = false; | |
1099 ClipInlining = false; | |
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1100 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1101 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1102 // compile a level 4 (C2) and then continue executing it. |
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1103 if (TieredCompilation) { |
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1104 Tier3InvokeNotifyFreqLog = 0; |
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1105 Tier4InvocationThreshold = 0; |
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1106 } |
0 | 1107 break; |
1108 } | |
1109 } | |
1110 | |
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1111 #if defined(COMPILER2) || defined(_LP64) || !INCLUDE_CDS |
0 | 1112 // Conflict: required to use shared spaces (-Xshare:on), but |
1113 // incompatible command line options were chosen. | |
1114 | |
1115 static void no_shared_spaces() { | |
1116 if (RequireSharedSpaces) { | |
1117 jio_fprintf(defaultStream::error_stream(), | |
1118 "Class data sharing is inconsistent with other specified options.\n"); | |
1119 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1120 } else { | |
1121 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1122 } | |
1123 } | |
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1124 #endif |
0 | 1125 |
1783 | 1126 void Arguments::set_tiered_flags() { |
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1127 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1128 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1129 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1130 } |
1131 if (CompilationPolicyChoice < 2) { | |
1132 vm_exit_during_initialization( | |
1133 "Incompatible compilation policy selected", NULL); | |
1134 } | |
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1135 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1136 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
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1137 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1138 } |
10278 | 1139 if (!UseInterpreter) { // -Xcomp |
1140 Tier3InvokeNotifyFreqLog = 0; | |
1141 Tier4InvocationThreshold = 0; | |
1142 } | |
1783 | 1143 } |
1144 | |
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1145 #if INCLUDE_ALL_GCS |
4838 | 1146 static void disable_adaptive_size_policy(const char* collector_name) { |
1147 if (UseAdaptiveSizePolicy) { | |
1148 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1149 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1150 collector_name); | |
1151 } | |
1152 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1153 } | |
1154 } | |
1155 | |
0 | 1156 void Arguments::set_parnew_gc_flags() { |
1064 | 1157 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1158 "control point invariant"); |
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1159 assert(UseParNewGC, "Error"); |
0 | 1160 |
4838 | 1161 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1162 disable_adaptive_size_policy("UseParNewGC"); | |
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1163 |
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1164 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1165 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1166 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1167 } else if (ParallelGCThreads == 0) { |
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1168 jio_fprintf(defaultStream::error_stream(), |
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1169 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1170 vm_exit(1); |
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1171 } |
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1172 |
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1173 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1174 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1175 // we set them to 1024 and 1024. |
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1176 // See CR 6362902. |
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1177 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1178 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1179 } |
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1180 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1181 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1182 } |
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1183 |
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1184 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1185 // See CR 6362902. |
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1186 if (AlwaysTenure) { |
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1187 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1188 } |
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1189 // When using compressed oops, we use local overflow stacks, |
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1190 // rather than using a global overflow list chained through |
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1191 // the klass word of the object's pre-image. |
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1192 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1193 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1194 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1195 } |
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1196 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1197 } |
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1198 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1199 } |
1200 | |
1201 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1202 // sparc/solaris for certain applications, but would gain from | |
1203 // further optimization and tuning efforts, and would almost | |
1204 // certainly gain from analysis of platform and environment. | |
1205 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1206 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1207 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1208 |
0 | 1209 // If we are using CMS, we prefer to UseParNewGC, |
1210 // unless explicitly forbidden. | |
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1211 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1212 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1213 } |
1214 | |
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1215 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1216 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1217 |
1218 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1219 // as needed. | |
10
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1220 if (UseParNewGC) { |
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1221 set_parnew_gc_flags(); |
0 | 1222 } |
1223 | |
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1224 size_t max_heap = align_size_down(MaxHeapSize, |
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1225 CardTableRS::ct_max_alignment_constraint()); |
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1226 |
0 | 1227 // Now make adjustments for CMS |
2368
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1228 intx tenuring_default = (intx)6; |
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1229 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1230 |
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1231 // Preferred young gen size for "short" pauses: |
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1232 // upper bound depends on # of threads and NewRatio. |
0 | 1233 const uintx parallel_gc_threads = |
1234 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1235 const size_t preferred_max_new_size_unaligned = | |
2368
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1236 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1237 size_t preferred_max_new_size = |
0 | 1238 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1239 | |
1240 // Unless explicitly requested otherwise, size young gen | |
2368
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1241 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
886
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1242 |
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1243 // If either MaxNewSize or NewRatio is set on the command line, |
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1244 // assume the user is trying to set the size of the young gen. |
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1245 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1246 |
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1247 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1248 // NewSize was set on the command line and it is larger than |
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1249 // preferred_max_new_size. |
0 | 1250 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1251 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1252 } else { |
13
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1253 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1254 } |
1064 | 1255 if (PrintGCDetails && Verbose) { |
13
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1256 // Too early to use gclog_or_tty |
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1257 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
886
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1258 } |
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1259 |
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1260 // Code along this path potentially sets NewSize and OldSize |
1064 | 1261 if (PrintGCDetails && Verbose) { |
13
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1262 // Too early to use gclog_or_tty |
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1263 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1264 " initial_heap_size: " SIZE_FORMAT |
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1265 " max_heap: " SIZE_FORMAT, |
1064 | 1266 min_heap_size(), InitialHeapSize, max_heap); |
13
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1267 } |
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1268 size_t min_new = preferred_max_new_size; |
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1269 if (FLAG_IS_CMDLINE(NewSize)) { |
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1270 min_new = NewSize; |
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1271 } |
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1272 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1273 // Unless explicitly requested otherwise, make young gen |
1274 // at least min_new, and at most preferred_max_new_size. | |
1275 if (FLAG_IS_DEFAULT(NewSize)) { | |
13
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1276 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1277 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1278 if (PrintGCDetails && Verbose) { |
13
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1279 // Too early to use gclog_or_tty |
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1280 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1281 } |
0 | 1282 } |
1283 // Unless explicitly requested otherwise, size old gen | |
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1284 // so it's NewRatio x of NewSize. |
0 | 1285 if (FLAG_IS_DEFAULT(OldSize)) { |
1286 if (max_heap > NewSize) { | |
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1287 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1288 if (PrintGCDetails && Verbose) { |
13
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1289 // Too early to use gclog_or_tty |
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1290 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1291 } |
0 | 1292 } |
1293 } | |
1294 } | |
1295 } | |
1296 // Unless explicitly requested otherwise, definitely | |
1297 // promote all objects surviving "tenuring_default" scavenges. | |
1298 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1299 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1300 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1301 } |
1302 // If we decided above (or user explicitly requested) | |
1303 // `promote all' (via MaxTenuringThreshold := 0), | |
1304 // prefer minuscule survivor spaces so as not to waste | |
1305 // space for (non-existent) survivors | |
1306 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1307 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1308 } |
1309 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1310 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1311 // This is done in order to make ParNew+CMS configuration to work | |
1312 // with YoungPLABSize and OldPLABSize options. | |
1313 // See CR 6362902. | |
1314 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1315 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1316 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
14309 | 1317 // is. In this situation let CMSParPromoteBlocksToClaim follow |
13
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1318 // the value (either from the command line or ergonomics) of |
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1319 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1320 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
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1321 } else { |
0 | 1322 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1323 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1324 // we'll let it to take precedence. | |
1325 jio_fprintf(defaultStream::error_stream(), | |
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1326 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1327 " options are specified for the CMS collector." |
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1328 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1329 } |
1330 } | |
1145
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1331 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1332 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1333 // unless it was manually specified. This is because a too-low value |
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1334 // will slow down scavenges. |
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1335 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1336 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1337 } |
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1338 } |
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1339 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1340 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1341 // If either of the static initialization defaults have changed, note this |
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1342 // modification. |
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1343 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1344 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1345 } |
1284 | 1346 if (PrintGCDetails && Verbose) { |
1347 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1348 MarkStackSize / K, MarkStackSizeMax / K); | |
1349 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1350 } | |
0 | 1351 } |
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1352 #endif // INCLUDE_ALL_GCS |
0 | 1353 |
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1354 void set_object_alignment() { |
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1355 // Object alignment. |
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1356 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1357 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1358 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1359 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1360 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1361 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1362 |
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1363 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1364 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1365 |
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1366 // Oop encoding heap max |
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1367 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1368 |
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1369 #if INCLUDE_ALL_GCS |
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1370 // Set CMS global values |
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1371 CompactibleFreeListSpace::set_cms_values(); |
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1372 #endif // INCLUDE_ALL_GCS |
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1373 } |
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1374 |
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1375 bool verify_object_alignment() { |
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1376 // Object alignment. |
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1377 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1378 jio_fprintf(defaultStream::error_stream(), |
1829
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1379 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1380 (int)ObjectAlignmentInBytes); |
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1381 return false; |
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1382 } |
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1383 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1384 jio_fprintf(defaultStream::error_stream(), |
1829
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1385 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1386 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1387 return false; |
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|
1388 } |
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|
1389 // It does not make sense to have big object alignment |
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|
1390 // since a space lost due to alignment will be greater |
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1391 // then a saved space from compressed oops. |
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1392 if ((int)ObjectAlignmentInBytes > 256) { |
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1393 jio_fprintf(defaultStream::error_stream(), |
7461
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1394 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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|
1395 (int)ObjectAlignmentInBytes); |
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1396 return false; |
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|
1397 } |
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1398 // In case page size is very small. |
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1399 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1400 jio_fprintf(defaultStream::error_stream(), |
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1401 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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1402 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
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1403 return false; |
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1404 } |
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1405 return true; |
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1406 } |
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1407 |
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1408 uintx Arguments::max_heap_for_compressed_oops() { |
1963 | 1409 // Avoid sign flip. |
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1410 assert(OopEncodingHeapMax > (uint64_t)os::vm_page_size(), "Unusual page size"); |
12233
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1411 // We need to fit both the NULL page and the heap into the memory budget, while |
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1412 // keeping alignment constraints of the heap. To guarantee the latter, as the |
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1413 // NULL page is located before the heap, we pad the NULL page to the conservative |
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1414 // maximum alignment that the GC may ever impose upon the heap. |
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1415 size_t displacement_due_to_null_page = align_size_up_(os::vm_page_size(), |
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1416 _conservative_max_heap_alignment); |
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1417 |
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1418 LP64_ONLY(return OopEncodingHeapMax - displacement_due_to_null_page); |
1064 | 1419 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1420 } |
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1421 |
0 | 1422 bool Arguments::should_auto_select_low_pause_collector() { |
1423 if (UseAutoGCSelectPolicy && | |
1424 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1425 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1426 if (PrintGCDetails) { | |
1427 // Cannot use gclog_or_tty yet. | |
1428 tty->print_cr("Automatic selection of the low pause collector" | |
1429 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1430 } | |
1431 return true; | |
1432 } | |
1433 return false; | |
1434 } | |
1435 | |
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1436 void Arguments::set_use_compressed_oops() { |
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1437 #ifndef ZERO |
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1438 #ifdef _LP64 |
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1439 // MaxHeapSize is not set up properly at this point, but |
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1440 // the only value that can override MaxHeapSize if we are |
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1441 // to use UseCompressedOops is InitialHeapSize. |
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|
1442 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1443 |
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1444 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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|
1445 #if !defined(COMPILER1) || defined(TIERED) |
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1446 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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|
1447 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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|
1448 } |
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|
1449 #endif |
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|
1450 #ifdef _WIN64 |
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|
1451 if (UseLargePages && UseCompressedOops) { |
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|
1452 // Cannot allocate guard pages for implicit checks in indexed addressing |
eac371996b44
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|
1453 // mode, when large pages are specified on windows. |
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|
1454 // This flag could be switched ON if narrow oop base address is set to 0, |
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1455 // see code in Universe::initialize_heap(). |
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|
1456 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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|
1457 } |
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|
1458 #endif // _WIN64 |
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1459 } else { |
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|
1460 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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|
1461 warning("Max heap size too large for Compressed Oops"); |
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|
1462 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1463 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
8741
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1464 } |
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|
1465 } |
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1466 #endif // _LP64 |
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1467 #endif // ZERO |
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|
1468 } |
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|
1469 |
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|
1470 |
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1471 // NOTE: set_use_compressed_klass_ptrs() must be called after calling |
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1472 // set_use_compressed_oops(). |
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|
1473 void Arguments::set_use_compressed_klass_ptrs() { |
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1474 #ifndef ZERO |
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1475 #ifdef _LP64 |
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1476 // UseCompressedOops must be on for UseCompressedClassPointers to be on. |
12056
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1477 if (!UseCompressedOops) { |
12226
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1478 if (UseCompressedClassPointers) { |
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|
1479 warning("UseCompressedClassPointers requires UseCompressedOops"); |
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1480 } |
12226
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1481 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
12056
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1482 } else { |
12226
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|
1483 // Turn on UseCompressedClassPointers too |
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|
1484 if (FLAG_IS_DEFAULT(UseCompressedClassPointers)) { |
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|
1485 FLAG_SET_ERGO(bool, UseCompressedClassPointers, true); |
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1486 } |
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1487 // Check the CompressedClassSpaceSize to make sure we use compressed klass ptrs. |
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1488 if (UseCompressedClassPointers) { |
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|
1489 if (CompressedClassSpaceSize > KlassEncodingMetaspaceMax) { |
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|
1490 warning("CompressedClassSpaceSize is too large for UseCompressedClassPointers"); |
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|
1491 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
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|
1492 } |
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|
1493 } |
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|
1494 } |
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|
1495 #endif // _LP64 |
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1496 #endif // !ZERO |
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|
1497 } |
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|
1498 |
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1499 void Arguments::set_conservative_max_heap_alignment() { |
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1500 // The conservative maximum required alignment for the heap is the maximum of |
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1501 // the alignments imposed by several sources: any requirements from the heap |
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1502 // itself, the collector policy and the maximum page size we may run the VM |
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1503 // with. |
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1504 size_t heap_alignment = GenCollectedHeap::conservative_max_heap_alignment(); |
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1505 #if INCLUDE_ALL_GCS |
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1506 if (UseParallelGC) { |
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1507 heap_alignment = ParallelScavengeHeap::conservative_max_heap_alignment(); |
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1508 } else if (UseG1GC) { |
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1509 heap_alignment = G1CollectedHeap::conservative_max_heap_alignment(); |
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1510 } |
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1511 #endif // INCLUDE_ALL_GCS |
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1512 _conservative_max_heap_alignment = MAX3(heap_alignment, os::max_page_size(), |
13060
8f07aa079343
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|
1513 CollectorPolicy::compute_heap_alignment()); |
12233
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|
1514 } |
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|
1515 |
0 | 1516 void Arguments::set_ergonomics_flags() { |
1517 | |
4946 | 1518 if (os::is_server_class_machine()) { |
0 | 1519 // If no other collector is requested explicitly, |
1520 // let the VM select the collector based on | |
1521 // machine class and automatic selection policy. | |
1522 if (!UseSerialGC && | |
1523 !UseConcMarkSweepGC && | |
342
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|
1524 !UseG1GC && |
0 | 1525 !UseParNewGC && |
1526 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1527 if (should_auto_select_low_pause_collector()) { | |
1528 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1529 } else { | |
1530 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1531 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
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6628
diff
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|
1532 } |
0 | 1533 } |
12280
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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12276
diff
changeset
|
1534 #ifdef COMPILER2 |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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changeset
|
1535 // Shared spaces work fine with other GCs but causes bytecode rewriting |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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diff
changeset
|
1536 // to be disabled, which hurts interpreter performance and decreases |
9ed97b511b26
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diff
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|
1537 // server performance. When -server is specified, keep the default off |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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diff
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|
1538 // unless it is asked for. Future work: either add bytecode rewriting |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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diff
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|
1539 // at link time, or rewrite bytecodes in non-shared methods. |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1540 if (!DumpSharedSpaces && !RequireSharedSpaces && |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
parents:
12276
diff
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|
1541 (FLAG_IS_DEFAULT(UseSharedSpaces) || !UseSharedSpaces)) { |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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12276
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|
1542 no_shared_spaces(); |
9ed97b511b26
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diff
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|
1543 } |
9ed97b511b26
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|
1544 #endif |
113
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|
1545 |
12233
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|
1546 set_conservative_max_heap_alignment(); |
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|
1547 |
1010 | 1548 #ifndef ZERO |
113
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|
1549 #ifdef _LP64 |
8741
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
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|
1550 set_use_compressed_oops(); |
12056
740e263c80c6
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|
1551 |
740e263c80c6
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diff
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|
1552 // set_use_compressed_klass_ptrs() must be called after calling |
740e263c80c6
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|
1553 // set_use_compressed_oops(). |
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|
1554 set_use_compressed_klass_ptrs(); |
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|
1555 |
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1556 // Also checks that certain machines are slower with compressed oops |
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|
1557 // in vm_version initialization code. |
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1558 #endif // _LP64 |
1010 | 1559 #endif // !ZERO |
0 | 1560 } |
1561 | |
1562 void Arguments::set_parallel_gc_flags() { | |
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1563 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1564 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1565 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1566 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1567 } |
4879 | 1568 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1569 |
1570 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1571 // of the physical memory, up to a maximum of 1GB. | |
7471
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|
1572 FLAG_SET_DEFAULT(ParallelGCThreads, |
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8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1573 Abstract_VM_Version::parallel_worker_threads()); |
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8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1574 if (ParallelGCThreads == 0) { |
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|
1575 jio_fprintf(defaultStream::error_stream(), |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1576 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1577 vm_exit(1); |
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|
1578 } |
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|
1579 |
14313
44315152d434
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|
1580 if (UseAdaptiveSizePolicy) { |
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|
1581 // We don't want to limit adaptive heap sizing's freedom to adjust the heap |
44315152d434
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diff
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|
1582 // unless the user actually sets these flags. |
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diff
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|
1583 if (FLAG_IS_DEFAULT(MinHeapFreeRatio)) { |
44315152d434
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|
1584 FLAG_SET_DEFAULT(MinHeapFreeRatio, 0); |
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|
1585 } |
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diff
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|
1586 if (FLAG_IS_DEFAULT(MaxHeapFreeRatio)) { |
44315152d434
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diff
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|
1587 FLAG_SET_DEFAULT(MaxHeapFreeRatio, 100); |
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|
1588 } |
44315152d434
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diff
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|
1589 } |
7471
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1590 |
4c8bf5e55392
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diff
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|
1591 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
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|
1592 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1593 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1594 // See CR 6362902 for details. |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
changeset
|
1595 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
changeset
|
1596 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
changeset
|
1597 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1598 } |
7471
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1599 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1600 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1601 } |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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7453
diff
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|
1602 } |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
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|
1603 |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1604 if (UseParallelOldGC) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
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|
1605 // Par compact uses lower default values since they are treated as |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1606 // minimums. These are different defaults because of the different |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1607 // interpretation and are not ergonomically set. |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
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|
1608 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
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|
1609 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1610 } |
1611 } | |
1612 } | |
1613 | |
342
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|
1614 void Arguments::set_g1_gc_flags() { |
37f87013dfd8
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|
1615 assert(UseG1GC, "Error"); |
37f87013dfd8
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135
diff
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|
1616 #ifdef COMPILER1 |
37f87013dfd8
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135
diff
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|
1617 FastTLABRefill = false; |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
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|
1618 #endif |
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6711316: Open source the Garbage-First garbage collector
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changeset
|
1619 FLAG_SET_DEFAULT(ParallelGCThreads, |
37f87013dfd8
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135
diff
changeset
|
1620 Abstract_VM_Version::parallel_worker_threads()); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
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|
1621 if (ParallelGCThreads == 0) { |
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|
1622 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1623 Abstract_VM_Version::parallel_worker_threads()); |
342
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|
1624 } |
751 | 1625 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
diff
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|
1626 // MarkStackSize will be set (if it hasn't been set by the user) |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
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|
1627 // when concurrent marking is initialized. |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
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|
1628 // Its value will be based upon the number of parallel marking threads. |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
diff
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|
1629 // But we do set the maximum mark stack size here. |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
diff
changeset
|
1630 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
changeset
|
1631 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1632 } |
1356 | 1633 |
1634 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1635 // In G1, we want the default GC overhead goal to be higher than | |
1636 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1637 // be expanded more aggressively than we would like it to. In | |
1638 // fact, even 10% seems to not be high enough in some cases | |
1639 // (especially small GC stress tests that the main thing they do | |
1640 // is allocation). We might consider increase it further. | |
1641 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1642 } | |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
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|
1643 |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
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changeset
|
1644 if (PrintGCDetails && Verbose) { |
442f942757c0
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7177
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changeset
|
1645 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
442f942757c0
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7177
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|
1646 MarkStackSize / K, MarkStackSizeMax / K); |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
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|
1647 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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|
1648 } |
342
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|
1649 } |
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|
1650 |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1651 julong Arguments::limit_by_allocatable_memory(julong limit) { |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
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|
1652 julong max_allocatable; |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
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|
1653 julong result = limit; |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1654 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
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|
1655 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
754c24457b20
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tschatzl
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8824
diff
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|
1656 } |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1657 return result; |
754c24457b20
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8824
diff
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|
1658 } |
754c24457b20
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8824
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|
1659 |
1064 | 1660 void Arguments::set_heap_size() { |
1661 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1662 // Deprecated flag | |
1663 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1664 } | |
1665 | |
1666 const julong phys_mem = | |
1667 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1668 : (julong)MaxRAM; | |
1669 | |
1670 // If the maximum heap size has not been set with -Xmx, | |
1671 // then set it as fraction of the size of physical memory, | |
1672 // respecting the maximum and minimum sizes of the heap. | |
342
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|
1673 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1674 julong reasonable_max = phys_mem / MaxRAMFraction; |
1675 | |
1676 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1677 // Small physical memory, so use a minimum fraction of it for the heap | |
1678 reasonable_max = phys_mem / MinRAMFraction; | |
1679 } else { | |
1680 // Not-small physical memory, so require a heap at least | |
1681 // as large as MaxHeapSize | |
1682 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1683 } | |
1684 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1685 // Limit the heap size to ErgoHeapSizeLimit | |
1686 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
342
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|
1687 } |
1064 | 1688 if (UseCompressedOops) { |
1689 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1690 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1691 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1692 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1693 // but it should be not less than default MaxHeapSize. | |
1694 max_coop_heap -= HeapBaseMinAddress; | |
1695 } | |
1696 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1697 } |
8854
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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|
1698 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1699 |
1700 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1701 // An initial heap size was specified on the command line, | |
1702 // so be sure that the maximum size is consistent. Done | |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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8824
diff
changeset
|
1703 // after call to limit_by_allocatable_memory because that |
1064 | 1704 // method might reduce the allocation size. |
1705 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1706 } | |
1707 | |
342
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6711316: Open source the Garbage-First garbage collector
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|
1708 if (PrintGCDetails && Verbose) { |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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diff
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|
1709 // Cannot use gclog_or_tty yet. |
1064 | 1710 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1711 } |
1064 | 1712 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1713 } | |
1714 | |
10241
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|
1715 // If the minimum or initial heap_size have not been set or requested to be set |
d17700c82d7d
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diff
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|
1716 // ergonomically, set them accordingly. |
d17700c82d7d
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diff
changeset
|
1717 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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parents:
1069
diff
changeset
|
1718 julong reasonable_minimum = (julong)(OldSize + NewSize); |
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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diff
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|
1719 |
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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changeset
|
1720 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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|
1721 |
8854
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|
1722 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
84cb6f20afb3
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parents:
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|
1723 |
10241
d17700c82d7d
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changeset
|
1724 if (InitialHeapSize == 0) { |
d17700c82d7d
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changeset
|
1725 julong reasonable_initial = phys_mem / InitialRAMFraction; |
d17700c82d7d
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tschatzl
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changeset
|
1726 |
d17700c82d7d
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|
1727 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1728 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1729 |
d17700c82d7d
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|
1730 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
d17700c82d7d
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|
1731 |
d17700c82d7d
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|
1732 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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|
1733 // Cannot use gclog_or_tty yet. |
d17700c82d7d
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changeset
|
1734 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10240
diff
changeset
|
1735 } |
d17700c82d7d
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10240
diff
changeset
|
1736 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
342
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6711316: Open source the Garbage-First garbage collector
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diff
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|
1737 } |
10241
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changeset
|
1738 // If the minimum heap size has not been set (via -Xms), |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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diff
changeset
|
1739 // synchronize with InitialHeapSize to avoid errors with the default value. |
d17700c82d7d
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tschatzl
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diff
changeset
|
1740 if (min_heap_size() == 0) { |
d17700c82d7d
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tschatzl
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10240
diff
changeset
|
1741 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
d17700c82d7d
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10240
diff
changeset
|
1742 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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tschatzl
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diff
changeset
|
1743 // Cannot use gclog_or_tty yet. |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10240
diff
changeset
|
1744 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
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diff
changeset
|
1745 } |
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diff
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|
1746 } |
342
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diff
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|
1747 } |
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changeset
|
1748 } |
37f87013dfd8
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135
diff
changeset
|
1749 |
0 | 1750 // This must be called after ergonomics because we want bytecode rewriting |
1751 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1752 void Arguments::set_bytecode_flags() { | |
1753 // Better not attempt to store into a read-only space. | |
1754 if (UseSharedSpaces) { | |
1755 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1756 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1757 } | |
1758 | |
1759 if (!RewriteBytecodes) { | |
1760 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1761 } | |
1762 } | |
1763 | |
1764 // Aggressive optimization flags -XX:+AggressiveOpts | |
1765 void Arguments::set_aggressive_opts_flags() { | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1766 #ifdef COMPILER2 |
10278 | 1767 if (AggressiveUnboxing) { |
1768 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1769 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1770 } else if (!EliminateAutoBox) { | |
1771 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1772 AggressiveUnboxing = false; | |
1773 } | |
1774 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1775 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1776 } else if (!DoEscapeAnalysis) { | |
1777 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1778 AggressiveUnboxing = false; | |
1779 } | |
1780 } | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1781 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1782 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1783 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1784 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1785 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1786 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1787 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1788 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1789 // Feed the cache size setting into the JDK |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1790 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1791 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)
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parents:
0
diff
changeset
|
1792 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1793 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1794 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1795 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1796 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1797 #endif |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1798 |
0 | 1799 if (AggressiveOpts) { |
61 | 1800 // Sample flag setting code |
1801 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1802 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1803 // } | |
0 | 1804 } |
1805 } | |
1806 | |
1807 //=========================================================================================================== | |
1808 // Parsing of java.compiler property | |
1809 | |
1810 void Arguments::process_java_compiler_argument(char* arg) { | |
1811 // For backwards compatibility, Djava.compiler=NONE or "" | |
1812 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1813 // is also specified. | |
1814 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1815 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1816 } | |
1817 } | |
1818 | |
1819 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1820 _sun_java_launcher = strdup(launcher); | |
1821 } | |
1822 | |
1823 bool Arguments::created_by_java_launcher() { | |
1824 assert(_sun_java_launcher != NULL, "property must have value"); | |
1825 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1826 } | |
1827 | |
14317
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14282
diff
changeset
|
1828 bool Arguments::sun_java_launcher_is_altjvm() { |
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14282
diff
changeset
|
1829 return _sun_java_launcher_is_altjvm; |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1830 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1831 |
0 | 1832 //=========================================================================================================== |
1833 // Parsing of main arguments | |
1834 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
1188
diff
changeset
|
1835 bool Arguments::verify_interval(uintx val, uintx min, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
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diff
changeset
|
1836 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1837 // Returns true iff value is in the inclusive interval [min..max] |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1838 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1839 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1840 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1841 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1842 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1843 "%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
|
1844 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1845 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1846 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1847 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1848 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1849 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
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2362
diff
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|
1850 // 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
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diff
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|
1851 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1852 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1853 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1854 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1855 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1856 "%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
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1681
diff
changeset
|
1857 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1858 return false; |
f8c5d1bdaad4
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1681
diff
changeset
|
1859 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1860 |
0 | 1861 bool Arguments::verify_percentage(uintx value, const char* name) { |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
1862 if (is_percentage(value)) { |
0 | 1863 return true; |
1864 } | |
1865 jio_fprintf(defaultStream::error_stream(), | |
1866 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1867 name, value); | |
1868 return false; | |
1869 } | |
1870 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1871 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1872 #ifdef ASSERT |
0 | 1873 static bool verify_serial_gc_flags() { |
1874 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1875 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1876 UseParallelGC || UseParallelOldGC)); |
0 | 1877 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1878 #endif // ASSERT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1879 #endif // INCLUDE_ALL_GCS |
0 | 1880 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1881 // check if do gclog rotation |
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1882 // +UseGCLogFileRotation is a must, |
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1883 // no gc log rotation when log file not supplied or |
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1884 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
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1885 void check_gclog_consistency() { |
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1886 if (UseGCLogFileRotation) { |
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1887 if ((Arguments::gc_log_filename() == NULL) || |
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1888 (NumberOfGCLogFiles == 0) || |
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1889 (GCLogFileSize == 0)) { |
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1890 jio_fprintf(defaultStream::output_stream(), |
12215 | 1891 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>[k|K|m|M|g|G]\n" |
3767
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1892 "where num_of_file > 0 and num_of_size > 0\n" |
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1893 "GC log rotation is turned off\n"); |
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1894 UseGCLogFileRotation = false; |
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1895 } |
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1896 } |
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1897 |
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1898 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
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1899 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
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1900 jio_fprintf(defaultStream::output_stream(), |
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1901 "GCLogFileSize changed to minimum 8K\n"); |
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1902 } |
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1903 } |
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1904 |
12215 | 1905 // This function is called for -Xloggc:<filename>, it can be used |
1906 // to check if a given file name(or string) conforms to the following | |
1907 // specification: | |
1908 // A valid string only contains "[A-Z][a-z][0-9].-_%[p|t]" | |
1909 // %p and %t only allowed once. We only limit usage of filename not path | |
1910 bool is_filename_valid(const char *file_name) { | |
1911 const char* p = file_name; | |
1912 char file_sep = os::file_separator()[0]; | |
1913 const char* cp; | |
1914 // skip prefix path | |
1915 for (cp = file_name; *cp != '\0'; cp++) { | |
1916 if (*cp == '/' || *cp == file_sep) { | |
1917 p = cp + 1; | |
1918 } | |
1919 } | |
1920 | |
1921 int count_p = 0; | |
1922 int count_t = 0; | |
1923 while (*p != '\0') { | |
1924 if ((*p >= '0' && *p <= '9') || | |
1925 (*p >= 'A' && *p <= 'Z') || | |
1926 (*p >= 'a' && *p <= 'z') || | |
1927 *p == '-' || | |
1928 *p == '_' || | |
1929 *p == '.') { | |
1930 p++; | |
1931 continue; | |
1932 } | |
1933 if (*p == '%') { | |
1934 if(*(p + 1) == 'p') { | |
1935 p += 2; | |
1936 count_p ++; | |
1937 continue; | |
1938 } | |
1939 if (*(p + 1) == 't') { | |
1940 p += 2; | |
1941 count_t ++; | |
1942 continue; | |
1943 } | |
1944 } | |
1945 return false; | |
1946 } | |
1947 return count_p < 2 && count_t < 2; | |
1948 } | |
1949 | |
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1950 bool Arguments::verify_MinHeapFreeRatio(FormatBuffer<80>& err_msg, uintx min_heap_free_ratio) { |
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1951 if (!is_percentage(min_heap_free_ratio)) { |
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1952 err_msg.print("MinHeapFreeRatio must have a value between 0 and 100"); |
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1953 return false; |
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1954 } |
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1955 if (min_heap_free_ratio > MaxHeapFreeRatio) { |
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1956 err_msg.print("MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " |
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1957 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")", min_heap_free_ratio, |
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1958 MaxHeapFreeRatio); |
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1959 return false; |
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1960 } |
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1961 return true; |
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1962 } |
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1963 |
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1964 bool Arguments::verify_MaxHeapFreeRatio(FormatBuffer<80>& err_msg, uintx max_heap_free_ratio) { |
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1965 if (!is_percentage(max_heap_free_ratio)) { |
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1966 err_msg.print("MaxHeapFreeRatio must have a value between 0 and 100"); |
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1967 return false; |
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1968 } |
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1969 if (max_heap_free_ratio < MinHeapFreeRatio) { |
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1970 err_msg.print("MaxHeapFreeRatio (" UINTX_FORMAT ") must be greater than or " |
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1971 "equal to MinHeapFreeRatio (" UINTX_FORMAT ")", max_heap_free_ratio, |
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1972 MinHeapFreeRatio); |
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1973 return false; |
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1974 } |
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1975 return true; |
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1976 } |
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1977 |
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1978 // Check consistency of GC selection |
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1979 bool Arguments::check_gc_consistency() { |
3767
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1980 check_gclog_consistency(); |
10
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1981 bool status = true; |
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1982 // Ensure that the user has not selected conflicting sets |
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1983 // of collectors. [Note: this check is merely a user convenience; |
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1984 // collectors over-ride each other so that only a non-conflicting |
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1985 // set is selected; however what the user gets is not what they |
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1986 // may have expected from the combination they asked for. It's |
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1987 // better to reduce user confusion by not allowing them to |
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1988 // select conflicting combinations. |
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1989 uint i = 0; |
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1990 if (UseSerialGC) i++; |
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1991 if (UseConcMarkSweepGC || UseParNewGC) i++; |
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1992 if (UseParallelGC || UseParallelOldGC) i++; |
845
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1993 if (UseG1GC) i++; |
10
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1994 if (i > 1) { |
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1995 jio_fprintf(defaultStream::error_stream(), |
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1996 "Conflicting collector combinations in option list; " |
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1997 "please refer to the release notes for the combinations " |
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1998 "allowed\n"); |
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1999 status = false; |
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2000 } |
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2001 return status; |
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2002 } |
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2003 |
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2004 void Arguments::check_deprecated_gcs() { |
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2005 if (UseConcMarkSweepGC && !UseParNewGC) { |
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2006 warning("Using the DefNew young collector with the CMS collector is deprecated " |
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2007 "and will likely be removed in a future release"); |
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2008 } |
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2009 |
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2010 if (UseParNewGC && !UseConcMarkSweepGC) { |
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2011 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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2012 // set up UseSerialGC properly, so that can't be used in the check here. |
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2013 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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2014 "and will likely be removed in a future release"); |
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2015 } |
7453 | 2016 |
2017 if (CMSIncrementalMode) { | |
2018 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
2019 } | |
7452
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2020 } |
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2021 |
8734 | 2022 void Arguments::check_deprecated_gc_flags() { |
2023 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
2024 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
2025 "and will likely be removed in future release"); | |
2026 } | |
11977 | 2027 if (FLAG_IS_CMDLINE(DefaultMaxRAMFraction)) { |
2028 warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. " | |
2029 "Use MaxRAMFraction instead."); | |
2030 } | |
13008
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2031 if (FLAG_IS_CMDLINE(UseCMSCompactAtFullCollection)) { |
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2032 warning("UseCMSCompactAtFullCollection is deprecated and will likely be removed in a future release."); |
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2033 } |
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2034 if (FLAG_IS_CMDLINE(CMSFullGCsBeforeCompaction)) { |
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2035 warning("CMSFullGCsBeforeCompaction is deprecated and will likely be removed in a future release."); |
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2036 } |
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2037 if (FLAG_IS_CMDLINE(UseCMSCollectionPassing)) { |
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2038 warning("UseCMSCollectionPassing is deprecated and will likely be removed in a future release."); |
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2039 } |
8734 | 2040 } |
2041 | |
1744
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2042 // Check stack pages settings |
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2043 bool Arguments::check_stack_pages() |
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2044 { |
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2045 bool status = true; |
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2046 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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2047 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
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2048 // greater stack shadow pages can't generate instruction to bang stack |
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2049 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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2050 return status; |
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2051 } |
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|
2052 |
0 | 2053 // Check the consistency of vm_init_args |
2054 bool Arguments::check_vm_args_consistency() { | |
2055 // Method for adding checks for flag consistency. | |
2056 // The intent is to warn the user of all possible conflicts, | |
2057 // before returning an error. | |
2058 // Note: Needs platform-dependent factoring. | |
2059 bool status = true; | |
2060 | |
2061 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
2062 // builds so the cost of stack banging can be measured. | |
2063 #if (defined(PRODUCT) && defined(SOLARIS)) | |
2064 if (!UseBoundThreads && !UseStackBanging) { | |
2065 jio_fprintf(defaultStream::error_stream(), | |
2066 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
2067 | |
2068 status = false; | |
2069 } | |
2070 #endif | |
2071 | |
2072 if (TLABRefillWasteFraction == 0) { | |
2073 jio_fprintf(defaultStream::error_stream(), | |
2074 "TLABRefillWasteFraction should be a denominator, " | |
2075 "not " SIZE_FORMAT "\n", | |
2076 TLABRefillWasteFraction); | |
2077 status = false; | |
2078 } | |
2079 | |
10287
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6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2080 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 2081 "AdaptiveSizePolicyWeight"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2082 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
0 | 2083 |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2084 // Divide by bucket size to prevent a large size from causing rollover when |
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2085 // calculating amount of memory needed to be allocated for the String table. |
10126
63e31ce40bdb
8009928: PSR:PERF Increase default string table size
hseigel
parents:
9077
diff
changeset
|
2086 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2087 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2088 |
12825
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
2089 status = status && verify_interval(SymbolTableSize, minimumSymbolTableSize, |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
2090 (max_uintx / SymbolTable::bucket_size()), "SymbolTable size"); |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
2091 |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2092 { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2093 // Using "else if" below to avoid printing two error messages if min > max. |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2094 // This will also prevent us from reporting both min>100 and max>100 at the |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2095 // same time, but that is less annoying than printing two identical errors IMHO. |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2096 FormatBuffer<80> err_msg(""); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2097 if (!verify_MinHeapFreeRatio(err_msg, MinHeapFreeRatio)) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2098 jio_fprintf(defaultStream::error_stream(), "%s\n", err_msg.buffer()); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2099 status = false; |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2100 } else if (!verify_MaxHeapFreeRatio(err_msg, MaxHeapFreeRatio)) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2101 jio_fprintf(defaultStream::error_stream(), "%s\n", err_msg.buffer()); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2102 status = false; |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2103 } |
0 | 2104 } |
2105 | |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2106 // Min/MaxMetaspaceFreeRatio |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2107 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2108 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2109 |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2110 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2111 jio_fprintf(defaultStream::error_stream(), |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2112 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2113 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2114 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2115 MinMetaspaceFreeRatio, |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2116 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2117 MaxMetaspaceFreeRatio); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2118 status = false; |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2119 } |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2120 |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2121 // Trying to keep 100% free is not practical |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2122 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2123 |
0 | 2124 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
2125 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
2126 } | |
2127 | |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2128 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2129 // Settings to encourage splitting. |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2130 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 2131 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2132 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2133 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2134 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2135 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2136 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2137 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2138 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2139 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 2140 if (GCTimeLimit == 100) { |
2141 // Turn off gc-overhead-limit-exceeded checks | |
2142 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
2143 } | |
2144 | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2145 status = status && check_gc_consistency(); |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
2146 status = status && check_stack_pages(); |
0 | 2147 |
2148 if (CMSIncrementalMode) { | |
2149 if (!UseConcMarkSweepGC) { | |
2150 jio_fprintf(defaultStream::error_stream(), | |
2151 "error: invalid argument combination.\n" | |
2152 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2153 "selected in order\nto use CMSIncrementalMode.\n"); | |
2154 status = false; | |
2155 } else { | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2156 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2157 "CMSIncrementalDutyCycle"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2158 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2159 "CMSIncrementalDutyCycleMin"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2160 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2161 "CMSIncrementalSafetyFactor"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2162 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2163 "CMSIncrementalOffset"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2164 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2165 "CMSExpAvgFactor"); |
2166 // If it was not set on the command line, set | |
2167 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2168 if (CMSInitiatingOccupancyFraction < 0) { | |
2169 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2170 } | |
2171 } | |
2172 } | |
2173 | |
2174 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2175 // insists that we hold the requisite locks so that the iteration is | |
2176 // MT-safe. For the verification at start-up and shut-down, we don't | |
2177 // yet have a good way of acquiring and releasing these locks, | |
2178 // which are not visible at the CollectedHeap level. We want to | |
2179 // be able to acquire these locks and then do the iteration rather | |
2180 // than just disable the lock verification. This will be fixed under | |
2181 // bug 4788986. | |
2182 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2183 if (VerifyDuringStartup) { |
0 | 2184 warning("Heap verification at start-up disabled " |
2185 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2186 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2187 } |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2188 |
0 | 2189 if (VerifyBeforeExit) { |
2190 warning("Heap verification at shutdown disabled " | |
2191 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2192 VerifyBeforeExit = false; // Disable verification at shutdown | |
2193 } | |
2194 } | |
2195 | |
2196 // Note: only executed in non-PRODUCT mode | |
2197 if (!UseAsyncConcMarkSweepGC && | |
2198 (ExplicitGCInvokesConcurrent || | |
2199 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2200 jio_fprintf(defaultStream::error_stream(), | |
6628
bb3f6194fedb
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
brutisso
parents:
6266
diff
changeset
|
2201 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2202 " with -UseAsyncConcMarkSweepGC"); |
2203 status = false; | |
2204 } | |
2205 | |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2206 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2207 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2208 #if INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2209 if (UseG1GC) { |
13060
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2210 status = status && verify_percentage(G1NewSizePercent, "G1NewSizePercent"); |
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2211 status = status && verify_percentage(G1MaxNewSizePercent, "G1MaxNewSizePercent"); |
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2212 status = status && verify_interval(G1NewSizePercent, 0, G1MaxNewSizePercent, "G1NewSizePercent"); |
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2213 |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2214 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2215 "InitiatingHeapOccupancyPercent"); |
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2216 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2217 "G1RefProcDrainInterval"); |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2218 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2219 "G1ConcMarkStepDurationMillis"); |
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2220 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2221 "G1ConcRSHotCardLimit"); |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2222 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2223 "G1ConcRSLogCacheSize"); |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2224 } |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2225 if (UseConcMarkSweepGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2226 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2227 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2228 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2229 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2230 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2231 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2232 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2233 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2234 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2235 status = status && verify_interval(CMS_FLSWeight, 0, 100, "CMS_FLSWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2236 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2237 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2238 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2239 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2240 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2241 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2242 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2243 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2244 status = status && verify_interval(CMSPrecleanNumerator, 0, CMSPrecleanDenominator - 1, "CMSPrecleanNumerator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2245 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2246 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2247 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2248 status = status && verify_min_value(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2249 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2250 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2251 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2252 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2253 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2254 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2255 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2256 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2257 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2258 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2259 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2260 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2261 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2262 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2263 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2264 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2265 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2266 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2267 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2268 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2269 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2270 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2271 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2272 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2273 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2274 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2275 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2276 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2277 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2278 // 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
|
2279 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2280 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2281 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2282 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2283 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
|
2284 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
2285 status = status && verify_interval(CompressedClassSpaceSize, 1*M, 3*G, |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
2286 "CompressedClassSpaceSize"); |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2287 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2288 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2289 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2290 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2291 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2292 status = status && verify_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2293 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2294 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
|
2295 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2296 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2297 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2298 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2299 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2300 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2301 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2302 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2303 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2304 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2305 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2306 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2307 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2308 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2309 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2310 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2311 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2312 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2313 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2314 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2315 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2316 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2317 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2318 // 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
|
2319 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2320 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2321 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2322 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2323 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2324 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2325 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2326 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2327 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2328 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2329 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2330 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2331 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
|
2332 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2333 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2334 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2335 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2336 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2337 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2338 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2339 // 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
|
2340 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2341 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2342 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2343 jio_fprintf(defaultStream::error_stream(), |
12129 | 2344 "ContendedPaddingWidth=" INTX_FORMAT " must be in between %d and %d\n", |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2345 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2346 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2347 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2348 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2349 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2350 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2351 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2352 jio_fprintf(defaultStream::error_stream(), |
12129 | 2353 "ContendedPaddingWidth=" INTX_FORMAT " must be a multiple of %d\n", |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2354 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2355 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2356 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2357 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2358 // 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
|
2359 // 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
|
2360 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
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8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2361 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
10392
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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
|
2362 jio_fprintf(defaultStream::error_stream(), |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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11006
diff
changeset
|
2363 "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
|
2364 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2365 status = false; |
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8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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parents:
11006
diff
changeset
|
2366 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2367 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2368 "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.
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diff
changeset
|
2369 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.
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diff
changeset
|
2370 status = false; |
11079
738e04fb1232
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11006
diff
changeset
|
2371 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2372 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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11006
diff
changeset
|
2373 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2374 min_code_cache_size/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2375 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
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11083
diff
changeset
|
2376 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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parents:
11083
diff
changeset
|
2377 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
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11083
diff
changeset
|
2378 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
changeset
|
2379 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
changeset
|
2380 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
changeset
|
2381 status = false; |
10392
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10319
diff
changeset
|
2382 } |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
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12322
diff
changeset
|
2383 |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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12322
diff
changeset
|
2384 status &= verify_interval(NmethodSweepFraction, 1, ReservedCodeCacheSize/K, "NmethodSweepFraction"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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parents:
12322
diff
changeset
|
2385 status &= verify_interval(NmethodSweepActivity, 0, 2000, "NmethodSweepActivity"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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12322
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|
2386 |
0 | 2387 return status; |
2388 } | |
2389 | |
2390 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2391 const char* option_type) { | |
2392 if (ignore) return false; | |
2393 | |
2394 const char* spacer = " "; | |
2395 if (option_type == NULL) { | |
2396 option_type = ++spacer; // Set both to the empty string. | |
2397 } | |
2398 | |
2399 if (os::obsolete_option(option)) { | |
2400 jio_fprintf(defaultStream::error_stream(), | |
2401 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2402 option->optionString); | |
2403 return false; | |
2404 } else { | |
2405 jio_fprintf(defaultStream::error_stream(), | |
2406 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2407 option->optionString); | |
2408 return true; | |
2409 } | |
2410 } | |
2411 | |
2412 static const char* user_assertion_options[] = { | |
2413 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2414 }; | |
2415 | |
2416 static const char* system_assertion_options[] = { | |
2417 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2418 }; | |
2419 | |
2420 // Return true if any of the strings in null-terminated array 'names' matches. | |
2421 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2422 // the option must match exactly. | |
2423 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2424 bool tail_allowed) { | |
2425 for (/* empty */; *names != NULL; ++names) { | |
2426 if (match_option(option, *names, tail)) { | |
2427 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2428 return true; | |
2429 } | |
2430 } | |
2431 } | |
2432 return false; | |
2433 } | |
2434 | |
1284 | 2435 bool Arguments::parse_uintx(const char* value, |
2436 uintx* uintx_arg, | |
2437 uintx min_size) { | |
2438 | |
2439 // Check the sign first since atomull() parses only unsigned values. | |
2440 bool value_is_positive = !(*value == '-'); | |
2441 | |
2442 if (value_is_positive) { | |
2443 julong n; | |
2444 bool good_return = atomull(value, &n); | |
2445 if (good_return) { | |
2446 bool above_minimum = n >= min_size; | |
2447 bool value_is_too_large = n > max_uintx; | |
2448 | |
2449 if (above_minimum && !value_is_too_large) { | |
2450 *uintx_arg = n; | |
2451 return true; | |
2452 } | |
2453 } | |
2454 } | |
2455 return false; | |
2456 } | |
2457 | |
0 | 2458 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
|
2459 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2460 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2461 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2462 return check_memory_size(*long_arg, min_size); |
2463 } | |
2464 | |
2465 // Parse JavaVMInitArgs structure | |
2466 | |
2467 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2468 // For components of the system classpath. | |
2469 SysClassPath scp(Arguments::get_sysclasspath()); | |
2470 bool scp_assembly_required = false; | |
2471 | |
2472 // Save default settings for some mode flags | |
2473 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2474 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2475 Arguments::_ClipInlining = ClipInlining; | |
2476 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2477 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2478 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2479 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2480 |
0 | 2481 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2482 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2483 if (result != JNI_OK) { | |
2484 return result; | |
2485 } | |
2486 | |
2487 // Parse JavaVMInitArgs structure passed in | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
2488 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, Flag::COMMAND_LINE); |
0 | 2489 if (result != JNI_OK) { |
2490 return result; | |
2491 } | |
2492 | |
2493 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) | |
2494 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2495 if (result != JNI_OK) { | |
2496 return result; | |
2497 } | |
2498 | |
2499 // Do final processing now that all arguments have been parsed | |
2500 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2501 if (result != JNI_OK) { | |
2502 return result; | |
2503 } | |
2504 | |
2505 return JNI_OK; | |
2506 } | |
2507 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2508 // 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
|
2509 // 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
|
2510 // 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
|
2511 // -agentlib |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2512 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
|
2513 char *_name; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2514 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
|
2515 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
|
2516 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2517 if (is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2518 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
|
2519 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2520 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2521 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2522 _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
|
2523 _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
|
2524 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2525 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
|
2526 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2527 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2528 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2529 _name += _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2530 _len_hprof = strlen(_hprof); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2531 _len_jdwp = strlen(_jdwp); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2532 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2533 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2534 _name += _len_hprof; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2535 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2536 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2537 _name += _len_jdwp; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2538 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2539 else { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2540 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2541 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2542 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2543 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2544 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2545 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2546 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2547 return true; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2548 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2549 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2550 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2551 return true; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2552 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2553 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2554 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2555 } |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2556 |
0 | 2557 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2558 SysClassPath* scp_p, | |
2559 bool* scp_assembly_required_p, | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12269
diff
changeset
|
2560 Flag::Flags origin) { |
0 | 2561 // Remaining part of option string |
2562 const char* tail; | |
2563 | |
2564 // iterate over arguments | |
2565 for (int index = 0; index < args->nOptions; index++) { | |
2566 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2567 | |
2568 const JavaVMOption* option = args->options + index; | |
2569 | |
2570 if (!match_option(option, "-Djava.class.path", &tail) && | |
2571 !match_option(option, "-Dsun.java.command", &tail) && | |
2572 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2573 | |
2574 // add all jvm options to the jvm_args string. This string | |
2575 // is used later to set the java.vm.args PerfData string constant. | |
2576 // the -Djava.class.path and the -Dsun.java.command options are | |
2577 // omitted from jvm_args string as each have their own PerfData | |
2578 // string constant object. | |
2579 build_jvm_args(option->optionString); | |
2580 } | |
2581 | |
2582 // -verbose:[class/gc/jni] | |
2583 if (match_option(option, "-verbose", &tail)) { | |
2584 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2585 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2586 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2587 } else if (!strcmp(tail, ":gc")) { | |
2588 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2589 } else if (!strcmp(tail, ":jni")) { | |
2590 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2591 } | |
2592 // -da / -ea / -disableassertions / -enableassertions | |
2593 // These accept an optional class/package name separated by a colon, e.g., | |
2594 // -da:java.lang.Thread. | |
2595 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2596 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2597 if (*tail == '\0') { | |
2598 JavaAssertions::setUserClassDefault(enable); | |
2599 } else { | |
2600 assert(*tail == ':', "bogus match by match_option()"); | |
2601 JavaAssertions::addOption(tail + 1, enable); | |
2602 } | |
2603 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2604 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2605 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2606 JavaAssertions::setSystemClassDefault(enable); | |
2607 // -bootclasspath: | |
2608 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2609 scp_p->reset_path(tail); | |
2610 *scp_assembly_required_p = true; | |
2611 // -bootclasspath/a: | |
2612 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2613 scp_p->add_suffix(tail); | |
2614 *scp_assembly_required_p = true; | |
2615 // -bootclasspath/p: | |
2616 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2617 scp_p->add_prefix(tail); | |
2618 *scp_assembly_required_p = true; | |
2619 // -Xrun | |
2620 } else if (match_option(option, "-Xrun", &tail)) { | |
531
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|
2621 if (tail != NULL) { |
0 | 2622 const char* pos = strchr(tail, ':'); |
2623 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2624 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2625 name[len] = '\0'; |
2626 | |
2627 char *options = NULL; | |
2628 if(pos != NULL) { | |
2629 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2630 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2631 } |
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|
2632 #if !INCLUDE_JVMTI |
0 | 2633 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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|
2634 jio_fprintf(defaultStream::error_stream(), |
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2635 "Profiling and debugging agents are not supported in this VM\n"); |
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|
2636 return JNI_ERR; |
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|
2637 } |
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|
2638 #endif // !INCLUDE_JVMTI |
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|
2639 add_init_library(name, options); |
0 | 2640 } |
2641 // -agentlib and -agentpath | |
2642 } else if (match_option(option, "-agentlib:", &tail) || | |
2643 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2644 if(tail != NULL) { | |
2645 const char* pos = strchr(tail, '='); | |
2646 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2647 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2648 name[len] = '\0'; |
2649 | |
2650 char *options = NULL; | |
2651 if(pos != NULL) { | |
6197 | 2652 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2653 } |
6854
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|
2654 #if !INCLUDE_JVMTI |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
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9077
diff
changeset
|
2655 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
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|
2656 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
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changeset
|
2657 "Profiling and debugging agents are not supported in this VM\n"); |
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8105
diff
changeset
|
2658 return JNI_ERR; |
fad90b102190
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diff
changeset
|
2659 } |
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changeset
|
2660 #endif // !INCLUDE_JVMTI |
0 | 2661 add_init_agent(name, options, is_absolute_path); |
2662 } | |
2663 // -javaagent | |
2664 } else if (match_option(option, "-javaagent:", &tail)) { | |
6854
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diff
changeset
|
2665 #if !INCLUDE_JVMTI |
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diff
changeset
|
2666 jio_fprintf(defaultStream::error_stream(), |
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changeset
|
2667 "Instrumentation agents are not supported in this VM\n"); |
fad90b102190
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|
2668 return JNI_ERR; |
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diff
changeset
|
2669 #else |
0 | 2670 if(tail != NULL) { |
6197 | 2671 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2672 add_init_agent("instrument", options, false); |
2673 } | |
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|
2674 #endif // !INCLUDE_JVMTI |
0 | 2675 // -Xnoclassgc |
2676 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2677 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2678 // -Xincgc: i-CMS | |
2679 } else if (match_option(option, "-Xincgc", &tail)) { | |
2680 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2681 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2682 // -Xnoincgc: no i-CMS | |
2683 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2684 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2685 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2686 // -Xconcgc | |
2687 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2688 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2689 // -Xnoconcgc | |
2690 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2691 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2692 // -Xbatch | |
2693 } else if (match_option(option, "-Xbatch", &tail)) { | |
2694 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2695 // -Xmn for compatibility with other JVM vendors | |
2696 } else if (match_option(option, "-Xmn", &tail)) { | |
12831 | 2697 julong long_initial_young_size = 0; |
2698 ArgsRange errcode = parse_memory_size(tail, &long_initial_young_size, 1); | |
0 | 2699 if (errcode != arg_in_range) { |
2700 jio_fprintf(defaultStream::error_stream(), | |
12831 | 2701 "Invalid initial young generation size: %s\n", option->optionString); |
0 | 2702 describe_range_error(errcode); |
2703 return JNI_EINVAL; | |
2704 } | |
12831 | 2705 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_young_size); |
2706 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_young_size); | |
0 | 2707 // -Xms |
2708 } else if (match_option(option, "-Xms", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2709 julong long_initial_heap_size = 0; |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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10240
diff
changeset
|
2710 // an initial heap size of 0 means automatically determine |
d17700c82d7d
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10240
diff
changeset
|
2711 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2712 if (errcode != arg_in_range) { |
2713 jio_fprintf(defaultStream::error_stream(), | |
2714 "Invalid initial heap size: %s\n", option->optionString); | |
2715 describe_range_error(errcode); | |
2716 return JNI_EINVAL; | |
2717 } | |
13059
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diff
changeset
|
2718 set_min_heap_size((uintx)long_initial_heap_size); |
0 | 2719 // Currently the minimum size and the initial heap sizes are the same. |
13059
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13008
diff
changeset
|
2720 // Can be overridden with -XX:InitialHeapSize. |
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diff
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|
2721 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2722 // -Xmx |
10241
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|
2723 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
489
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|
2724 julong long_max_heap_size = 0; |
0 | 2725 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2726 if (errcode != arg_in_range) { | |
2727 jio_fprintf(defaultStream::error_stream(), | |
2728 "Invalid maximum heap size: %s\n", option->optionString); | |
2729 describe_range_error(errcode); | |
2730 return JNI_EINVAL; | |
2731 } | |
1064 | 2732 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2733 // Xmaxf |
2734 } else if (match_option(option, "-Xmaxf", &tail)) { | |
12896
027006a47a6d
8025661: Ill-formed -Xminf and -Xmaxf options values interpreted as 0
sjohanss
parents:
12840
diff
changeset
|
2735 char* err; |
027006a47a6d
8025661: Ill-formed -Xminf and -Xmaxf options values interpreted as 0
sjohanss
parents:
12840
diff
changeset
|
2736 int maxf = (int)(strtod(tail, &err) * 100); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2737 if (*err != '\0' || *tail == '\0' || maxf < 0 || maxf > 100) { |
0 | 2738 jio_fprintf(defaultStream::error_stream(), |
2739 "Bad max heap free percentage size: %s\n", | |
2740 option->optionString); | |
2741 return JNI_EINVAL; | |
2742 } else { | |
2743 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2744 } | |
2745 // Xminf | |
2746 } else if (match_option(option, "-Xminf", &tail)) { | |
12896
027006a47a6d
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sjohanss
parents:
12840
diff
changeset
|
2747 char* err; |
027006a47a6d
8025661: Ill-formed -Xminf and -Xmaxf options values interpreted as 0
sjohanss
parents:
12840
diff
changeset
|
2748 int minf = (int)(strtod(tail, &err) * 100); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2749 if (*err != '\0' || *tail == '\0' || minf < 0 || minf > 100) { |
0 | 2750 jio_fprintf(defaultStream::error_stream(), |
2751 "Bad min heap free percentage size: %s\n", | |
2752 option->optionString); | |
2753 return JNI_EINVAL; | |
2754 } else { | |
2755 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2756 } | |
2757 // -Xss | |
2758 } else if (match_option(option, "-Xss", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2759 julong long_ThreadStackSize = 0; |
0 | 2760 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2761 if (errcode != arg_in_range) { | |
2762 jio_fprintf(defaultStream::error_stream(), | |
2763 "Invalid thread stack size: %s\n", option->optionString); | |
2764 describe_range_error(errcode); | |
2765 return JNI_EINVAL; | |
2766 } | |
2767 // Internally track ThreadStackSize in units of 1024 bytes. | |
2768 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2769 round_to((int)long_ThreadStackSize, K) / K); | |
2770 // -Xoss | |
2771 } else if (match_option(option, "-Xoss", &tail)) { | |
2772 // 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
anoll
parents:
11006
diff
changeset
|
2773 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2774 julong long_CodeCacheExpansionSize = 0; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2775 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2776 if (errcode != arg_in_range) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2777 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2778 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2779 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2780 return JNI_EINVAL; |
738e04fb1232
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anoll
parents:
11006
diff
changeset
|
2781 } |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2782 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
parents:
2002
diff
changeset
|
2783 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2784 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2785 julong long_ReservedCodeCacheSize = 0; |
11079
738e04fb1232
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anoll
parents:
11006
diff
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|
2786 |
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
|
2787 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2788 if (errcode != arg_in_range) { |
2789 jio_fprintf(defaultStream::error_stream(), | |
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
|
2790 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2791 return JNI_EINVAL; |
2792 } | |
2793 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
10319
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2794 //-XX:IncreaseFirstTierCompileThresholdAt= |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2795 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2796 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2797 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2798 jio_fprintf(defaultStream::error_stream(), |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2799 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2800 option->optionString); |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2801 return JNI_EINVAL; |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2802 } |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2803 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2804 // -green |
2805 } else if (match_option(option, "-green", &tail)) { | |
2806 jio_fprintf(defaultStream::error_stream(), | |
2807 "Green threads support not available\n"); | |
2808 return JNI_EINVAL; | |
2809 // -native | |
2810 } else if (match_option(option, "-native", &tail)) { | |
2811 // HotSpot always uses native threads, ignore silently for compatibility | |
2812 // -Xsqnopause | |
2813 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2814 // EVM option, ignore silently for compatibility | |
2815 // -Xrs | |
2816 } else if (match_option(option, "-Xrs", &tail)) { | |
2817 // Classic/EVM option, new functionality | |
2818 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2819 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2820 // change default internal VM signals used - lower case for back compat | |
2821 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2822 // -Xoptimize | |
2823 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2824 // EVM option, ignore silently for compatibility | |
2825 // -Xprof | |
2826 } else if (match_option(option, "-Xprof", &tail)) { | |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
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6818
diff
changeset
|
2827 #if INCLUDE_FPROF |
0 | 2828 _has_profile = true; |
6854
fb19af007ffc
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jprovino
parents:
6818
diff
changeset
|
2829 #else // INCLUDE_FPROF |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2830 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
|
2831 "Flat profiling is not supported in this VM.\n"); |
fad90b102190
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jprovino
parents:
8105
diff
changeset
|
2832 return JNI_ERR; |
6854
fb19af007ffc
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6818
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changeset
|
2833 #endif // INCLUDE_FPROF |
0 | 2834 // -Xconcurrentio |
2835 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2836 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2837 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2838 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2839 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2840 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2841 | |
2842 // -Xinternalversion | |
2843 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2844 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2845 VM_Version::internal_vm_info_string()); | |
2846 vm_exit(0); | |
2847 #ifndef PRODUCT | |
2848 // -Xprintflags | |
2849 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2850 CommandLineFlags::printFlags(tty, false); |
0 | 2851 vm_exit(0); |
2852 #endif | |
2853 // -D | |
2854 } else if (match_option(option, "-D", &tail)) { | |
2855 if (!add_property(tail)) { | |
2856 return JNI_ENOMEM; | |
2857 } | |
2858 // Out of the box management support | |
2859 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
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2860 #if INCLUDE_MANAGEMENT |
0 | 2861 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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2862 #else |
8720
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2863 jio_fprintf(defaultStream::output_stream(), |
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|
2864 "-Dcom.sun.management is not supported in this VM.\n"); |
fad90b102190
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2865 return JNI_ERR; |
8081
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2866 #endif |
0 | 2867 } |
2868 // -Xint | |
2869 } else if (match_option(option, "-Xint", &tail)) { | |
2870 set_mode_flags(_int); | |
2871 // -Xmixed | |
2872 } else if (match_option(option, "-Xmixed", &tail)) { | |
2873 set_mode_flags(_mixed); | |
2874 // -Xcomp | |
2875 } else if (match_option(option, "-Xcomp", &tail)) { | |
2876 // for testing the compiler; turn off all flags that inhibit compilation | |
2877 set_mode_flags(_comp); | |
2878 // -Xshare:dump | |
2879 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2880 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2881 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2882 // -Xshare:on | |
2883 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2884 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2885 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2886 // -Xshare:auto | |
2887 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2888 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2889 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2890 // -Xshare:off | |
2891 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2892 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2893 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2894 // -Xverify | |
2895 } else if (match_option(option, "-Xverify", &tail)) { | |
2896 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2897 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2898 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2899 } else if (strcmp(tail, ":remote") == 0) { | |
2900 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2901 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2902 } else if (strcmp(tail, ":none") == 0) { | |
2903 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2904 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2905 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2906 return JNI_EINVAL; | |
2907 } | |
2908 // -Xdebug | |
2909 } else if (match_option(option, "-Xdebug", &tail)) { | |
2910 // note this flag has been used, then ignore | |
2911 set_xdebug_mode(true); | |
2912 // -Xnoagent | |
2913 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2914 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2915 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2916 // Bind user level threads to kernel threads (Solaris only) | |
2917 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2918 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2919 // Redirect GC output to the file. -Xloggc:<filename> | |
2920 // ostream_init_log(), when called will use this filename | |
2921 // to initialize a fileStream. | |
2922 _gc_log_filename = strdup(tail); | |
12215 | 2923 if (!is_filename_valid(_gc_log_filename)) { |
2924 jio_fprintf(defaultStream::output_stream(), | |
2925 "Invalid file name for use with -Xloggc: Filename can only contain the " | |
2926 "characters [A-Z][a-z][0-9]-_.%%[p|t] but it has been %s\n" | |
2927 "Note %%p or %%t can only be used once\n", _gc_log_filename); | |
2928 return JNI_EINVAL; | |
2929 } | |
0 | 2930 FLAG_SET_CMDLINE(bool, PrintGC, true); |
2931 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2932 | |
2933 // JNI hooks | |
2934 } else if (match_option(option, "-Xcheck", &tail)) { | |
2935 if (!strcmp(tail, ":jni")) { | |
6854
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2936 #if !INCLUDE_JNI_CHECK |
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|
2937 warning("JNI CHECKING is not supported in this VM"); |
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|
2938 #else |
0 | 2939 CheckJNICalls = true; |
6854
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|
2940 #endif // INCLUDE_JNI_CHECK |
0 | 2941 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2942 "check")) { | |
2943 return JNI_EINVAL; | |
2944 } | |
2945 } else if (match_option(option, "vfprintf", &tail)) { | |
2946 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2947 } else if (match_option(option, "exit", &tail)) { | |
2948 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2949 } else if (match_option(option, "abort", &tail)) { | |
2950 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2951 // -XX:+AggressiveHeap | |
2952 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2953 | |
2954 // This option inspects the machine and attempts to set various | |
2955 // parameters to be optimal for long-running, memory allocation | |
2956 // intensive jobs. It is intended for machines with large | |
2957 // amounts of cpu and memory. | |
2958 | |
2959 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2960 // VM, but we may not be able to represent the total physical memory | |
2961 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2962 // Thus, we need to make sure we're using a julong for intermediate | |
2963 // calculations. | |
2964 julong initHeapSize; | |
2965 julong total_memory = os::physical_memory(); | |
2966 | |
2967 if (total_memory < (julong)256*M) { | |
2968 jio_fprintf(defaultStream::error_stream(), | |
2969 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2970 vm_exit(1); | |
2971 } | |
2972 | |
2973 // The heap size is half of available memory, or (at most) | |
2974 // all of possible memory less 160mb (leaving room for the OS | |
2975 // when using ISM). This is the maximum; because adaptive sizing | |
2976 // is turned on below, the actual space used may be smaller. | |
2977 | |
2978 initHeapSize = MIN2(total_memory / (julong)2, | |
2979 total_memory - (julong)160*M); | |
2980 | |
8854
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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|
2981 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2982 |
2983 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2984 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2985 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2986 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2987 set_min_heap_size(initHeapSize); |
0 | 2988 } |
2989 if (FLAG_IS_DEFAULT(NewSize)) { | |
2990 // Make the young generation 3/8ths of the total heap. | |
2991 FLAG_SET_CMDLINE(uintx, NewSize, | |
2992 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2993 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2994 } | |
2995 | |
6917
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2996 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2997 FLAG_SET_DEFAULT(UseLargePages, true); |
6917
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2998 #endif |
0 | 2999 |
3000 // Increase some data structure sizes for efficiency | |
3001 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
3002 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
3003 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
3004 | |
3005 // See the OldPLABSize comment below, but replace 'after promotion' | |
3006 // with 'after copying'. YoungPLABSize is the size of the survivor | |
3007 // space per-gc-thread buffers. The default is 4kw. | |
3008 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
3009 | |
3010 // OldPLABSize is the size of the buffers in the old gen that | |
3011 // UseParallelGC uses to promote live data that doesn't fit in the | |
3012 // survivor spaces. At any given time, there's one for each gc thread. | |
3013 // The default size is 1kw. These buffers are rarely used, since the | |
3014 // survivor spaces are usually big enough. For specjbb, however, there | |
3015 // are occasions when there's lots of live data in the young gen | |
3016 // and we end up promoting some of it. We don't have a definite | |
3017 // explanation for why bumping OldPLABSize helps, but the theory | |
3018 // is that a bigger PLAB results in retaining something like the | |
3019 // original allocation order after promotion, which improves mutator | |
3020 // locality. A minor effect may be that larger PLABs reduce the | |
3021 // number of PLAB allocation events during gc. The value of 8kw | |
3022 // was arrived at by experimenting with specjbb. | |
3023 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
3024 | |
3025 // Enable parallel GC and adaptive generation sizing | |
3026 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
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3027 FLAG_SET_DEFAULT(ParallelGCThreads, |
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3028 Abstract_VM_Version::parallel_worker_threads()); |
0 | 3029 |
3030 // Encourage steady state memory management | |
3031 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
3032 | |
3033 // This appears to improve mutator locality | |
3034 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3035 | |
3036 // Get around early Solaris scheduling bug | |
3037 // (affinity vs other jobs on system) | |
3038 // but disallow DR and offlining (5008695). | |
3039 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
3040 | |
3041 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
3042 // The last option must always win. | |
3043 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
3044 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
3045 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
3046 // The last option must always win. | |
3047 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
3048 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
3049 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
3050 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
3051 jio_fprintf(defaultStream::error_stream(), | |
3052 "Please use CMSClassUnloadingEnabled in place of " | |
3053 "CMSPermGenSweepingEnabled in the future\n"); | |
3054 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
3055 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
3056 jio_fprintf(defaultStream::error_stream(), | |
3057 "Please use -XX:+UseGCOverheadLimit in place of " | |
3058 "-XX:+UseGCTimeLimit in the future\n"); | |
3059 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
3060 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
3061 jio_fprintf(defaultStream::error_stream(), | |
3062 "Please use -XX:-UseGCOverheadLimit in place of " | |
3063 "-XX:-UseGCTimeLimit in the future\n"); | |
3064 // The TLE options are for compatibility with 1.3 and will be | |
3065 // removed without notice in a future release. These options | |
3066 // are not to be documented. | |
3067 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
3068 // No longer used. | |
3069 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
3070 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
3071 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
3072 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
3073 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
3074 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
3075 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
3076 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
3077 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
3078 // No longer used. | |
3079 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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|
3080 julong long_tlab_size = 0; |
0 | 3081 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
3082 if (errcode != arg_in_range) { | |
3083 jio_fprintf(defaultStream::error_stream(), | |
3084 "Invalid TLAB size: %s\n", option->optionString); | |
3085 describe_range_error(errcode); | |
3086 return JNI_EINVAL; | |
3087 } | |
3088 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
3089 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
3090 // No longer used. | |
3091 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
3092 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
3093 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
3094 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
3095 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
3096 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
3097 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
3098 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
3099 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
3100 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
3101 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 3102 #if defined(DTRACE_ENABLED) |
0 | 3103 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
3104 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
3105 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
3106 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 3107 #else // defined(DTRACE_ENABLED) |
0 | 3108 jio_fprintf(defaultStream::error_stream(), |
4006 | 3109 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 3110 return JNI_EINVAL; |
4006 | 3111 #endif // defined(DTRACE_ENABLED) |
0 | 3112 #ifdef ASSERT |
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3113 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 3114 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
3115 // disable scavenge before parallel mark-compact | |
3116 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3117 #endif | |
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3118 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 3119 julong cms_blocks_to_claim = (julong)atol(tail); |
3120 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
3121 jio_fprintf(defaultStream::error_stream(), | |
1145
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3122 "Please use -XX:OldPLABSize in place of " |
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6631166: CMS: better heuristics when combatting fragmentation
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|
3123 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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6631166: CMS: better heuristics when combatting fragmentation
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|
3124 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
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6631166: CMS: better heuristics when combatting fragmentation
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|
3125 julong cms_blocks_to_claim = (julong)atol(tail); |
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|
3126 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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|
3127 jio_fprintf(defaultStream::error_stream(), |
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6631166: CMS: better heuristics when combatting fragmentation
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|
3128 "Please use -XX:OldPLABSize in place of " |
0 | 3129 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
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|
3130 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
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|
3131 julong old_plab_size = 0; |
0 | 3132 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
3133 if (errcode != arg_in_range) { | |
3134 jio_fprintf(defaultStream::error_stream(), | |
3135 "Invalid old PLAB size: %s\n", option->optionString); | |
3136 describe_range_error(errcode); | |
3137 return JNI_EINVAL; | |
3138 } | |
489
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|
3139 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 3140 jio_fprintf(defaultStream::error_stream(), |
3141 "Please use -XX:OldPLABSize in place of " | |
3142 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
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|
3143 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
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|
3144 julong young_plab_size = 0; |
0 | 3145 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3146 if (errcode != arg_in_range) { | |
3147 jio_fprintf(defaultStream::error_stream(), | |
3148 "Invalid young PLAB size: %s\n", option->optionString); | |
3149 describe_range_error(errcode); | |
3150 return JNI_EINVAL; | |
3151 } | |
489
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|
3152 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3153 jio_fprintf(defaultStream::error_stream(), |
3154 "Please use -XX:YoungPLABSize in place of " | |
3155 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3156 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3157 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3158 julong stack_size = 0; | |
3159 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3160 if (errcode != arg_in_range) { | |
3161 jio_fprintf(defaultStream::error_stream(), | |
3162 "Invalid mark stack size: %s\n", option->optionString); | |
3163 describe_range_error(errcode); | |
3164 return JNI_EINVAL; | |
3165 } | |
3166 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3167 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3168 julong max_stack_size = 0; | |
3169 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3170 if (errcode != arg_in_range) { | |
3171 jio_fprintf(defaultStream::error_stream(), | |
3172 "Invalid maximum mark stack size: %s\n", | |
3173 option->optionString); | |
3174 describe_range_error(errcode); | |
3175 return JNI_EINVAL; | |
3176 } | |
3177 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3178 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3179 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3180 uintx conc_threads = 0; | |
3181 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3182 jio_fprintf(defaultStream::error_stream(), | |
3183 "Invalid concurrent threads: %s\n", option->optionString); | |
3184 return JNI_EINVAL; | |
3185 } | |
3186 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3187 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3188 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3189 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
|
3190 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3191 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3192 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3193 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3194 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3195 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3196 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3197 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3198 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3199 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3200 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3201 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
|
3202 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
|
3203 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3204 } 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
|
3205 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
|
3206 "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
|
3207 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3208 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3209 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3210 // Skip -XX:Flags= since that case has already been handled |
3211 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3212 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3213 return JNI_EINVAL; | |
3214 } | |
3215 } | |
3216 // Unknown option | |
3217 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3218 return JNI_ERR; | |
3219 } | |
3220 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3221 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3222 // 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
|
3223 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3224 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3225 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3226 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3227 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3228 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3229 #endif // LINUX |
0 | 3230 return JNI_OK; |
3231 } | |
3232 | |
3233 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3234 // This must be done after all -D arguments have been processed. | |
3235 scp_p->expand_endorsed(); | |
3236 | |
3237 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3238 // Assemble the bootclasspath elements into the final path. | |
3239 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3240 } | |
3241 | |
3242 // This must be done after all arguments have been processed. | |
3243 // java_compiler() true means set to "NONE" or empty. | |
3244 if (java_compiler() && !xdebug_mode()) { | |
3245 // For backwards compatibility, we switch to interpreted mode if | |
3246 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3247 // not specified. | |
3248 set_mode_flags(_int); | |
3249 } | |
3250 if (CompileThreshold == 0) { | |
3251 set_mode_flags(_int); | |
3252 } | |
3253 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3254 // 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
|
3255 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
|
3256 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
|
3257 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3258 |
0 | 3259 #ifndef COMPILER2 |
3260 // Don't degrade server performance for footprint | |
3261 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3262 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3263 // No need for large granularity pages w/small heaps. | |
3264 // Note that large pages are enabled/disabled for both the | |
3265 // Java heap and the code cache. | |
3266 FLAG_SET_DEFAULT(UseLargePages, false); | |
3267 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3268 |
0 | 3269 #else |
3270 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3271 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3272 } | |
3273 #endif | |
3274 | |
11999
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3275 #ifndef TIERED |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3276 // Tiered compilation is undefined. |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3277 UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation"); |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3278 #endif |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3279 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3280 // 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
|
3281 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3282 // 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
|
3283 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3284 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3285 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3286 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3287 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3288 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3289 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3290 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3291 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3292 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3293 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3294 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3295 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3296 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3297 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3298 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3299 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3300 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3301 |
0 | 3302 if (!check_vm_args_consistency()) { |
3303 return JNI_ERR; | |
3304 } | |
3305 | |
3306 return JNI_OK; | |
3307 } | |
3308 | |
3309 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3310 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3311 scp_assembly_required_p); | |
3312 } | |
3313 | |
3314 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3315 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3316 scp_assembly_required_p); | |
3317 } | |
3318 | |
3319 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3320 const int N_MAX_OPTIONS = 64; | |
3321 const int OPTION_BUFFER_SIZE = 1024; | |
3322 char buffer[OPTION_BUFFER_SIZE]; | |
3323 | |
3324 // The variable will be ignored if it exceeds the length of the buffer. | |
3325 // Don't check this variable if user has special privileges | |
3326 // (e.g. unix su command). | |
3327 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3328 !os::have_special_privileges()) { | |
3329 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3330 jio_fprintf(defaultStream::error_stream(), | |
3331 "Picked up %s: %s\n", name, buffer); | |
3332 char* rd = buffer; // pointer to the input string (rd) | |
3333 int i; | |
3334 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3335 while (isspace(*rd)) rd++; // skip whitespace | |
3336 if (*rd == 0) break; // we re done when the input string is read completely | |
3337 | |
3338 // The output, option string, overwrites the input string. | |
3339 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3340 // input string (rd). | |
3341 char* wrt = rd; | |
3342 | |
3343 options[i++].optionString = wrt; // Fill in option | |
3344 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3345 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3346 int quote = *rd; // matching quote to look for | |
3347 rd++; // don't copy open quote | |
3348 while (*rd != quote) { // include everything (even spaces) up until quote | |
3349 if (*rd == 0) { // string termination means unmatched string | |
3350 jio_fprintf(defaultStream::error_stream(), | |
3351 "Unmatched quote in %s\n", name); | |
3352 return JNI_ERR; | |
3353 } | |
3354 *wrt++ = *rd++; // copy to option string | |
3355 } | |
3356 rd++; // don't copy close quote | |
3357 } else { | |
3358 *wrt++ = *rd++; // copy to option string | |
3359 } | |
3360 } | |
3361 // Need to check if we're done before writing a NULL, | |
3362 // because the write could be to the byte that rd is pointing to. | |
3363 if (*rd++ == 0) { | |
3364 *wrt = 0; | |
3365 break; | |
3366 } | |
3367 *wrt = 0; // Zero terminate option | |
3368 } | |
3369 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3370 JavaVMInitArgs vm_args; | |
3371 vm_args.version = JNI_VERSION_1_2; | |
3372 vm_args.options = options; | |
3373 vm_args.nOptions = i; | |
564 | 3374 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3375 |
3376 if (PrintVMOptions) { | |
3377 const char* tail; | |
3378 for (int i = 0; i < vm_args.nOptions; i++) { | |
3379 const JavaVMOption *option = vm_args.options + i; | |
3380 if (match_option(option, "-XX:", &tail)) { | |
3381 logOption(tail); | |
3382 } | |
3383 } | |
3384 } | |
3385 | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3386 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, Flag::ENVIRON_VAR)); |
0 | 3387 } |
3388 return JNI_OK; | |
3389 } | |
3390 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3391 void Arguments::set_shared_spaces_flags() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3392 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3393 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3394 warning("cannot dump shared archive while using shared archive"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3395 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3396 UseSharedSpaces = false; |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3397 #ifdef _LP64 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3398 if (!UseCompressedOops || !UseCompressedClassPointers) { |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3399 vm_exit_during_initialization( |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3400 "Cannot dump shared archive when UseCompressedOops or UseCompressedClassPointers is off.", NULL); |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3401 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3402 } else { |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3403 // UseCompressedOops and UseCompressedClassPointers must be on for UseSharedSpaces. |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3404 if (!UseCompressedOops || !UseCompressedClassPointers) { |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3405 no_shared_spaces(); |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3406 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3407 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3408 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3409 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3410 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3411 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3412 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3413 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3414 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3415 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3416 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3417 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3418 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3419 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3420 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3421 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3422 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3423 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3424 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3425 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3426 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3427 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3428 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3429 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
|
3430 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
|
3431 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3432 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
|
3433 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
|
3434 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
|
3435 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3436 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3437 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
|
3438 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
|
3439 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3440 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3441 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3442 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
|
3443 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3444 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
|
3445 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3446 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3447 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3448 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3449 |
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3450 #ifndef PRODUCT |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3451 // Determine whether LogVMOutput should be implicitly turned on. |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3452 static bool use_vm_log() { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3453 if (LogCompilation || !FLAG_IS_DEFAULT(LogFile) || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3454 PrintCompilation || PrintInlining || PrintDependencies || PrintNativeNMethods || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3455 PrintDebugInfo || PrintRelocations || PrintNMethods || PrintExceptionHandlers || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3456 PrintAssembly || TraceDeoptimization || TraceDependencies || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3457 (VerifyDependencies && FLAG_IS_CMDLINE(VerifyDependencies))) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3458 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3459 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3460 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3461 #ifdef COMPILER1 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3462 if (PrintC1Statistics) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3463 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3464 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3465 #endif // COMPILER1 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3466 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3467 #ifdef COMPILER2 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3468 if (PrintOptoAssembly || PrintOptoStatistics) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3469 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3470 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3471 #endif // COMPILER2 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3472 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3473 return false; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3474 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3475 #endif // PRODUCT |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3476 |
0 | 3477 // Parse entry point called from JNI_CreateJavaVM |
3478 | |
3479 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3480 | |
3481 // Remaining part of option string | |
3482 const char* tail; | |
3483 | |
3484 // 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
|
3485 const char* hotspotrc = ".hotspotrc"; |
0 | 3486 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
|
3487 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
|
3488 |
564 | 3489 const char* flags_file; |
0 | 3490 int index; |
3491 for (index = 0; index < args->nOptions; index++) { | |
3492 const JavaVMOption *option = args->options + index; | |
3493 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3494 flags_file = tail; |
0 | 3495 settings_file_specified = true; |
3496 } | |
3497 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3498 PrintVMOptions = true; | |
3499 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3500 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
|
3501 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3502 } |
564 | 3503 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3504 IgnoreUnrecognizedVMOptions = true; | |
3505 } | |
3506 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3507 IgnoreUnrecognizedVMOptions = false; | |
3508 } | |
1150 | 3509 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3510 CommandLineFlags::printFlags(tty, false); |
1150 | 3511 vm_exit(0); |
3512 } | |
6197 | 3513 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3514 #if INCLUDE_NMT |
6197 | 3515 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3516 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3517 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
|
3518 "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
|
3519 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3520 #endif |
6197 | 3521 } |
3522 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3523 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3524 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3525 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3526 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3527 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3528 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3529 #endif |
564 | 3530 } |
3531 | |
3532 if (IgnoreUnrecognizedVMOptions) { | |
3533 // uncast const to modify the flag args->ignoreUnrecognized | |
3534 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3535 } | |
3536 | |
3537 // Parse specified settings file | |
3538 if (settings_file_specified) { | |
3539 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3540 return JNI_EINVAL; | |
3541 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3542 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3543 #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
|
3544 // Parse default .hotspotrc settings file |
0 | 3545 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3546 return JNI_EINVAL; | |
3547 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3548 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3549 struct stat buf; |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3550 if (os::stat(hotspotrc, &buf) == 0) { |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3551 needs_hotspotrc_warning = true; |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3552 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3553 #endif |
0 | 3554 } |
3555 | |
3556 if (PrintVMOptions) { | |
3557 for (index = 0; index < args->nOptions; index++) { | |
3558 const JavaVMOption *option = args->options + index; | |
3559 if (match_option(option, "-XX:", &tail)) { | |
3560 logOption(tail); | |
3561 } | |
3562 } | |
3563 } | |
3564 | |
3565 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3566 jint result = parse_vm_init_args(args); | |
3567 if (result != JNI_OK) { | |
3568 return result; | |
3569 } | |
3570 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3571 // 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
parents:
10264
diff
changeset
|
3572 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3573 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3574 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3575 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3576 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3577 // 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
|
3578 // 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
|
3579 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
|
3580 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
|
3581 "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
|
3582 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3583 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3584 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3585 #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
|
3586 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3587 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3588 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3589 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3590 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3591 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3592 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3593 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3594 |
0 | 3595 #ifndef PRODUCT |
3596 if (TraceBytecodesAt != 0) { | |
3597 TraceBytecodes = true; | |
3598 } | |
3599 if (CountCompiledCalls) { | |
3600 if (UseCounterDecay) { | |
3601 warning("UseCounterDecay disabled because CountCalls is set"); | |
3602 UseCounterDecay = false; | |
3603 } | |
3604 } | |
3605 #endif // PRODUCT | |
3606 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3607 // 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
|
3608 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3609 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3610 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3611 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
|
3612 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3613 EnableInvokeDynamic = false; |
710 | 3614 } |
3615 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3616 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3617 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3618 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3619 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
|
3620 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3621 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3622 } |
710 | 3623 |
0 | 3624 if (PrintGCDetails) { |
3625 // Turn on -verbose:gc options as well | |
3626 PrintGC = true; | |
3627 } | |
3628 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3629 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3630 // 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
|
3631 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3632 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3633 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3634 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3635 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3636 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3637 // 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
|
3638 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
|
3639 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3640 #if !INCLUDE_ALL_GCS |
1064 | 3641 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3642 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3643 #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
|
3644 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3645 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
|
3646 "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
|
3647 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3648 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3649 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
|
3650 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
|
3651 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
|
3652 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
|
3653 } |
0 | 3654 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3655 #endif // INCLUDE_CDS |
0 | 3656 |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3657 return JNI_OK; |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3658 } |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3659 |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3660 jint Arguments::apply_ergo() { |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3661 |
0 | 3662 // Set flags based on ergonomics. |
3663 set_ergonomics_flags(); | |
3664 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3665 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3666 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3667 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3668 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3669 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3670 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3671 |
1783 | 3672 if (TieredCompilation) { |
3673 set_tiered_flags(); | |
3674 } else { | |
3675 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3676 if (CompilationPolicyChoice >= 2) { | |
3677 vm_exit_during_initialization( | |
3678 "Incompatible compilation policy selected", NULL); | |
3679 } | |
3680 } | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3681 // Set NmethodSweepFraction after the size of the code cache is adapted (in case of tiered) |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3682 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3683 FLAG_SET_DEFAULT(NmethodSweepFraction, 1 + ReservedCodeCacheSize / (16 * M)); |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3684 } |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3685 |
1783 | 3686 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3687 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3688 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3689 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3690 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3691 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3692 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3693 set_parallel_gc_flags(); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3694 } 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
|
3695 set_cms_and_parnew_gc_flags(); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3696 } else if (UseParNewGC) { // Skipped if CMS is set above |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3697 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3698 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3699 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3700 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3701 check_deprecated_gcs(); |
8734 | 3702 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3703 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3704 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
|
3705 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
|
3706 " 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
|
3707 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3708 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3709 } |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3710 if (MinHeapFreeRatio == 100) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3711 // Keeping the heap 100% free is hard ;-) so limit it to 99%. |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3712 FLAG_SET_ERGO(uintx, MinHeapFreeRatio, 99); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3713 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3714 #else // INCLUDE_ALL_GCS |
0 | 3715 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3716 #endif // INCLUDE_ALL_GCS |
0 | 3717 |
14309 | 3718 // Initialize Metaspace flags and alignments |
12838
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3719 Metaspace::ergo_initialize(); |
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3720 |
0 | 3721 // Set bytecode rewriting flags |
3722 set_bytecode_flags(); | |
3723 | |
14309 | 3724 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled |
0 | 3725 set_aggressive_opts_flags(); |
3726 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3727 // Turn off biased locking for locking debug mode flags, |
14309 | 3728 // which are subtly different from each other but neither works with |
3729 // biased locking | |
2331 | 3730 if (UseHeavyMonitors |
3731 #ifdef COMPILER1 | |
3732 || !UseFastLocking | |
3733 #endif // COMPILER1 | |
3734 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3735 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3736 // 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
|
3737 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3738 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3739 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3740 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3741 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3742 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3743 |
0 | 3744 #ifdef CC_INTERP |
1131 | 3745 // Clear flags not supported by the C++ interpreter |
3746 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3747 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3748 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3749 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedClassPointers, false)); |
1131 | 3750 #endif // CC_INTERP |
3751 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
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3752 #ifdef COMPILER2 |
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3753 if (!UseBiasedLocking || EmitSync != 0) { |
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3754 UseOptoBiasInlining = false; |
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3755 } |
4777 | 3756 if (!EliminateLocks) { |
3757 EliminateNestedLocks = false; | |
3758 } | |
7473 | 3759 if (!Inline) { |
3760 IncrementalInline = false; | |
3761 } | |
3762 #ifndef PRODUCT | |
3763 if (!IncrementalInline) { | |
3764 AlwaysIncrementalInline = false; | |
3765 } | |
3766 #endif | |
3767 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3768 // incremental inlining: bump MaxNodeLimit | |
3769 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3770 } | |
12966 | 3771 if (!UseTypeSpeculation && FLAG_IS_DEFAULT(TypeProfileLevel)) { |
3772 // nothing to use the profiling, turn if off | |
3773 FLAG_SET_DEFAULT(TypeProfileLevel, 0); | |
3774 } | |
3775 if (UseTypeSpeculation && FLAG_IS_DEFAULT(ReplaceInParentMaps)) { | |
3776 // Doing the replace in parent maps helps speculation | |
3777 FLAG_SET_DEFAULT(ReplaceInParentMaps, true); | |
3778 } | |
420
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3779 #endif |
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3780 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
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3781 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
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3782 warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
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3783 DebugNonSafepoints = true; |
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3784 } |
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|
3785 |
12226
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3786 if (FLAG_IS_CMDLINE(CompressedClassSpaceSize) && !UseCompressedClassPointers) { |
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3787 warning("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used"); |
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3788 } |
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3789 |
1188
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
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1161
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changeset
|
3790 #ifndef PRODUCT |
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3791 if (CompileTheWorld) { |
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3792 // Force NmethodSweeper to sweep whole CodeCache each time. |
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3793 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
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3794 NmethodSweepFraction = 1; |
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3795 } |
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3796 } |
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
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diff
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|
3797 |
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3798 if (!LogVMOutput && FLAG_IS_DEFAULT(LogVMOutput)) { |
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3799 if (use_vm_log()) { |
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3800 LogVMOutput = true; |
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3801 } |
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3802 } |
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3803 #endif // PRODUCT |
1188
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3804 |
0 | 3805 if (PrintCommandLineFlags) { |
4773 | 3806 CommandLineFlags::printSetFlags(tty); |
0 | 3807 } |
3808 | |
1681
126ea7725993
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diff
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|
3809 // Apply CPU specific policy for the BiasedLocking |
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changeset
|
3810 if (UseBiasedLocking) { |
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3811 if (!VM_Version::use_biased_locking() && |
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6953477: Increase portability and flexibility of building Hotspot
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3812 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
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|
3813 UseBiasedLocking = false; |
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|
3814 } |
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|
3815 } |
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3816 |
0 | 3817 return JNI_OK; |
3818 } | |
3819 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
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3820 jint Arguments::adjust_after_os() { |
14346 | 3821 if (UseNUMA) { |
3822 if (UseParallelGC || UseParallelOldGC) { | |
7177
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|
3823 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
14346 | 3824 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
7177
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3825 } |
14346 | 3826 } |
3827 // UseNUMAInterleaving is set to ON for all collectors and | |
3828 // platforms when UseNUMA is set to ON. NUMA-aware collectors | |
3829 // such as the parallel collector for Linux and Solaris will | |
3830 // interleave old gen and survivor spaces on top of NUMA | |
3831 // allocation policy for the eden space. | |
3832 // Non NUMA-aware collectors such as CMS, G1 and Serial-GC on | |
3833 // all platforms and ParallelGC on Windows will interleave all | |
3834 // of the heap spaces across NUMA nodes. | |
3835 if (FLAG_IS_DEFAULT(UseNUMAInterleaving)) { | |
3836 FLAG_SET_ERGO(bool, UseNUMAInterleaving, true); | |
7177
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7198334: UseNUMA modifies system parameters on non-NUMA system
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|
3837 } |
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|
3838 } |
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diff
changeset
|
3839 return JNI_OK; |
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diff
changeset
|
3840 } |
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|
3841 |
0 | 3842 int Arguments::PropertyList_count(SystemProperty* pl) { |
3843 int count = 0; | |
3844 while(pl != NULL) { | |
3845 count++; | |
3846 pl = pl->next(); | |
3847 } | |
3848 return count; | |
3849 } | |
3850 | |
3851 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3852 assert(key != NULL, "just checking"); | |
3853 SystemProperty* prop; | |
3854 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3855 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3856 } | |
3857 return NULL; | |
3858 } | |
3859 | |
3860 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3861 int count = 0; | |
3862 const char* ret_val = NULL; | |
3863 | |
3864 while(pl != NULL) { | |
3865 if(count >= index) { | |
3866 ret_val = pl->key(); | |
3867 break; | |
3868 } | |
3869 count++; | |
3870 pl = pl->next(); | |
3871 } | |
3872 | |
3873 return ret_val; | |
3874 } | |
3875 | |
3876 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3877 int count = 0; | |
3878 char* ret_val = NULL; | |
3879 | |
3880 while(pl != NULL) { | |
3881 if(count >= index) { | |
3882 ret_val = pl->value(); | |
3883 break; | |
3884 } | |
3885 count++; | |
3886 pl = pl->next(); | |
3887 } | |
3888 | |
3889 return ret_val; | |
3890 } | |
3891 | |
3892 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3893 SystemProperty* p = *plist; | |
3894 if (p == NULL) { | |
3895 *plist = new_p; | |
3896 } else { | |
3897 while (p->next() != NULL) { | |
3898 p = p->next(); | |
3899 } | |
3900 p->set_next(new_p); | |
3901 } | |
3902 } | |
3903 | |
3904 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3905 if (plist == NULL) | |
3906 return; | |
3907 | |
3908 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3909 PropertyList_add(plist, new_p); | |
3910 } | |
3911 | |
3912 // This add maintains unique property key in the list. | |
691 | 3913 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3914 if (plist == NULL) |
3915 return; | |
3916 | |
3917 // If property key exist then update with new value. | |
3918 SystemProperty* prop; | |
3919 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3920 if (strcmp(k, prop->key()) == 0) { | |
691 | 3921 if (append) { |
3922 prop->append_value(v); | |
3923 } else { | |
3924 prop->set_value(v); | |
3925 } | |
0 | 3926 return; |
3927 } | |
3928 } | |
3929 | |
3930 PropertyList_add(plist, k, v); | |
3931 } | |
3932 | |
3933 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3934 // Returns true if all of the source pointed by src has been copied over to | |
3935 // the destination buffer pointed by buf. Otherwise, returns false. | |
3936 // Notes: | |
3937 // 1. If the length (buflen) of the destination buffer excluding the | |
3938 // NULL terminator character is not long enough for holding the expanded | |
3939 // pid characters, it also returns false instead of returning the partially | |
3940 // expanded one. | |
3941 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3942 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3943 char* buf, size_t buflen) { | |
3944 const char* p = src; | |
3945 char* b = buf; | |
3946 const char* src_end = &src[srclen]; | |
3947 char* buf_end = &buf[buflen - 1]; | |
3948 | |
3949 while (p < src_end && b < buf_end) { | |
3950 if (*p == '%') { | |
3951 switch (*(++p)) { | |
3952 case '%': // "%%" ==> "%" | |
3953 *b++ = *p++; | |
3954 break; | |
3955 case 'p': { // "%p" ==> current process id | |
3956 // buf_end points to the character before the last character so | |
3957 // that we could write '\0' to the end of the buffer. | |
3958 size_t buf_sz = buf_end - b + 1; | |
3959 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3960 | |
3961 // if jio_snprintf fails or the buffer is not long enough to hold | |
3962 // the expanded pid, returns false. | |
3963 if (ret < 0 || ret >= (int)buf_sz) { | |
3964 return false; | |
3965 } else { | |
3966 b += ret; | |
3967 assert(*b == '\0', "fail in copy_expand_pid"); | |
3968 if (p == src_end && b == buf_end + 1) { | |
3969 // reach the end of the buffer. | |
3970 return true; | |
3971 } | |
3972 } | |
3973 p++; | |
3974 break; | |
3975 } | |
3976 default : | |
3977 *b++ = '%'; | |
3978 } | |
3979 } else { | |
3980 *b++ = *p++; | |
3981 } | |
3982 } | |
3983 *b = '\0'; | |
3984 return (p == src_end); // return false if not all of the source was copied | |
3985 } |