Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 11112:ec173c8f3739
Merge
author | roland |
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date | Thu, 11 Jul 2013 01:11:52 -0700 |
parents | fa6929d0b0a9 dec841e0c9aa |
children | 02d7aa1456c9 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved. |
0 | 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
4 * | |
5 * This code is free software; you can redistribute it and/or modify it | |
6 * under the terms of the GNU General Public License version 2 only, as | |
7 * published by the Free Software Foundation. | |
8 * | |
9 * This code is distributed in the hope that it will be useful, but WITHOUT | |
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
12 * version 2 for more details (a copy is included in the LICENSE file that | |
13 * accompanied this code). | |
14 * | |
15 * You should have received a copy of the GNU General Public License version | |
16 * 2 along with this work; if not, write to the Free Software Foundation, | |
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. | |
18 * | |
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19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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20 * or visit www.oracle.com if you need additional information or have any |
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21 * questions. |
0 | 22 * |
23 */ | |
24 | |
1972 | 25 #include "precompiled.hpp" |
26 #include "classfile/javaAssertions.hpp" | |
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27 #include "classfile/symbolTable.hpp" |
1972 | 28 #include "compiler/compilerOracle.hpp" |
29 #include "memory/allocation.inline.hpp" | |
30 #include "memory/cardTableRS.hpp" | |
31 #include "memory/referenceProcessor.hpp" | |
32 #include "memory/universe.inline.hpp" | |
33 #include "oops/oop.inline.hpp" | |
34 #include "prims/jvmtiExport.hpp" | |
35 #include "runtime/arguments.hpp" | |
36 #include "runtime/globals_extension.hpp" | |
37 #include "runtime/java.hpp" | |
38 #include "services/management.hpp" | |
6197 | 39 #include "services/memTracker.hpp" |
1972 | 40 #include "utilities/defaultStream.hpp" |
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41 #include "utilities/macros.hpp" |
1972 | 42 #include "utilities/taskqueue.hpp" |
43 #ifdef TARGET_OS_FAMILY_linux | |
44 # include "os_linux.inline.hpp" | |
45 #endif | |
46 #ifdef TARGET_OS_FAMILY_solaris | |
47 # include "os_solaris.inline.hpp" | |
48 #endif | |
49 #ifdef TARGET_OS_FAMILY_windows | |
50 # include "os_windows.inline.hpp" | |
51 #endif | |
3960 | 52 #ifdef TARGET_OS_FAMILY_bsd |
53 # include "os_bsd.inline.hpp" | |
54 #endif | |
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55 #if INCLUDE_ALL_GCS |
1972 | 56 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
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57 #endif // INCLUDE_ALL_GCS |
0 | 58 |
2474 | 59 // Note: This is a special bug reporting site for the JVM |
60 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 61 #define DEFAULT_JAVA_LAUNCHER "generic" |
62 | |
63 char** Arguments::_jvm_flags_array = NULL; | |
64 int Arguments::_num_jvm_flags = 0; | |
65 char** Arguments::_jvm_args_array = NULL; | |
66 int Arguments::_num_jvm_args = 0; | |
67 char* Arguments::_java_command = NULL; | |
68 SystemProperty* Arguments::_system_properties = NULL; | |
69 const char* Arguments::_gc_log_filename = NULL; | |
70 bool Arguments::_has_profile = false; | |
71 uintx Arguments::_min_heap_size = 0; | |
72 Arguments::Mode Arguments::_mode = _mixed; | |
73 bool Arguments::_java_compiler = false; | |
74 bool Arguments::_xdebug_mode = false; | |
75 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
76 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
77 int Arguments::_sun_java_launcher_pid = -1; | |
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78 bool Arguments::_created_by_gamma_launcher = false; |
0 | 79 |
80 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
81 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
82 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
83 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
84 bool Arguments::_ClipInlining = ClipInlining; | |
85 | |
86 char* Arguments::SharedArchivePath = NULL; | |
87 | |
88 AgentLibraryList Arguments::_libraryList; | |
89 AgentLibraryList Arguments::_agentList; | |
90 | |
91 abort_hook_t Arguments::_abort_hook = NULL; | |
92 exit_hook_t Arguments::_exit_hook = NULL; | |
93 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
94 | |
95 | |
96 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
97 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
98 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
99 SystemProperty *Arguments::_java_library_path = NULL; | |
100 SystemProperty *Arguments::_java_home = NULL; | |
101 SystemProperty *Arguments::_java_class_path = NULL; | |
102 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
103 | |
104 char* Arguments::_meta_index_path = NULL; | |
105 char* Arguments::_meta_index_dir = NULL; | |
106 | |
107 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
108 | |
109 static bool match_option(const JavaVMOption *option, const char* name, | |
110 const char** tail) { | |
111 int len = (int)strlen(name); | |
112 if (strncmp(option->optionString, name, len) == 0) { | |
113 *tail = option->optionString + len; | |
114 return true; | |
115 } else { | |
116 return false; | |
117 } | |
118 } | |
119 | |
120 static void logOption(const char* opt) { | |
121 if (PrintVMOptions) { | |
122 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
123 } | |
124 } | |
125 | |
126 // Process java launcher properties. | |
127 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
128 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
129 // Must do this before setting up other system properties, | |
130 // as some of them may depend on launcher type. | |
131 for (int index = 0; index < args->nOptions; index++) { | |
132 const JavaVMOption* option = args->options + index; | |
133 const char* tail; | |
134 | |
135 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
136 process_java_launcher_argument(tail, option->extraInfo); | |
137 continue; | |
138 } | |
139 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
140 _sun_java_launcher_pid = atoi(tail); | |
141 continue; | |
142 } | |
143 } | |
144 } | |
145 | |
146 // Initialize system properties key and value. | |
147 void Arguments::init_system_properties() { | |
148 | |
149 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
150 "Java Virtual Machine Specification", false)); | |
151 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
152 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
153 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
154 | |
155 // following are JVMTI agent writeable properties. | |
156 // Properties values are set to NULL and they are | |
157 // os specific they are initialized in os::init_system_properties_values(). | |
158 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
159 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
160 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
161 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
162 _java_home = new SystemProperty("java.home", NULL, true); | |
163 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
164 | |
165 _java_class_path = new SystemProperty("java.class.path", "", true); | |
166 | |
167 // Add to System Property list. | |
168 PropertyList_add(&_system_properties, _java_ext_dirs); | |
169 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
170 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
171 PropertyList_add(&_system_properties, _java_library_path); | |
172 PropertyList_add(&_system_properties, _java_home); | |
173 PropertyList_add(&_system_properties, _java_class_path); | |
174 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
175 | |
176 // Set OS specific system properties values | |
177 os::init_system_properties_values(); | |
178 } | |
179 | |
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180 |
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181 // Update/Initialize System properties after JDK version number is known |
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182 void Arguments::init_version_specific_system_properties() { |
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183 enum { bufsz = 16 }; |
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184 char buffer[bufsz]; |
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185 const char* spec_vendor = "Sun Microsystems Inc."; |
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186 uint32_t spec_version = 0; |
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187 |
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188 if (JDK_Version::is_gte_jdk17x_version()) { |
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189 spec_vendor = "Oracle Corporation"; |
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190 spec_version = JDK_Version::current().major_version(); |
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191 } |
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192 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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193 |
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194 PropertyList_add(&_system_properties, |
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195 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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196 PropertyList_add(&_system_properties, |
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197 new SystemProperty("java.vm.specification.version", buffer, false)); |
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198 PropertyList_add(&_system_properties, |
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199 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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200 } |
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201 |
242 | 202 /** |
203 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
204 * When a flag is eliminated, it can be added to this list in order to | |
205 * continue accepting this flag on the command-line, while issuing a warning | |
206 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
207 * limit, we flatly refuse to admit the existence of the flag. This allows | |
208 * a flag to die correctly over JDK releases using HSX. | |
209 */ | |
210 typedef struct { | |
211 const char* name; | |
212 JDK_Version obsoleted_in; // when the flag went away | |
213 JDK_Version accept_until; // which version to start denying the existence | |
214 } ObsoleteFlag; | |
0 | 215 |
242 | 216 static ObsoleteFlag obsolete_jvm_flags[] = { |
217 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
218 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
219 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
220 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
221 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
222 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
223 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
224 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
225 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
226 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
227 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
228 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
229 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
230 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 231 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
232 { "DefaultInitialRAMFraction", | |
233 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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234 { "UseDepthFirstScavengeOrder", |
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235 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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236 { "HandlePromotionFailure", |
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237 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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238 { "MaxLiveObjectEvacuationRatio", |
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239 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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240 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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241 { "UseParallelOldGCCompacting", |
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242 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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243 { "UseParallelDensePrefixUpdate", |
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244 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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245 { "UseParallelOldGCDensePrefix", |
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246 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 247 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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248 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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249 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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250 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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251 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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252 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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253 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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254 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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255 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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256 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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257 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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258 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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259 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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260 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 261 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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262 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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263 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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264 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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265 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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266 #ifdef PRODUCT |
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267 { "DesiredMethodLimit", |
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268 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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269 #endif // PRODUCT |
242 | 270 { NULL, JDK_Version(0), JDK_Version(0) } |
271 }; | |
272 | |
273 // Returns true if the flag is obsolete and fits into the range specified | |
274 // for being ignored. In the case that the flag is ignored, the 'version' | |
275 // value is filled in with the version number when the flag became | |
276 // obsolete so that that value can be displayed to the user. | |
277 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 278 int i = 0; |
242 | 279 assert(version != NULL, "Must provide a version buffer"); |
280 while (obsolete_jvm_flags[i].name != NULL) { | |
281 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 282 // <flag>=xxx form |
283 // [-|+]<flag> form | |
242 | 284 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 285 ((s[0] == '+' || s[0] == '-') && |
242 | 286 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
287 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
288 *version = flag_status.obsoleted_in; | |
289 return true; | |
290 } | |
0 | 291 } |
292 i++; | |
293 } | |
294 return false; | |
295 } | |
296 | |
297 // Constructs the system class path (aka boot class path) from the following | |
298 // components, in order: | |
299 // | |
300 // prefix // from -Xbootclasspath/p:... | |
301 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
302 // base // from os::get_system_properties() or -Xbootclasspath= | |
303 // suffix // from -Xbootclasspath/a:... | |
304 // | |
305 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
306 // directories are added to the sysclasspath just before the base. | |
307 // | |
308 // This could be AllStatic, but it isn't needed after argument processing is | |
309 // complete. | |
310 class SysClassPath: public StackObj { | |
311 public: | |
312 SysClassPath(const char* base); | |
313 ~SysClassPath(); | |
314 | |
315 inline void set_base(const char* base); | |
316 inline void add_prefix(const char* prefix); | |
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317 inline void add_suffix_to_prefix(const char* suffix); |
0 | 318 inline void add_suffix(const char* suffix); |
319 inline void reset_path(const char* base); | |
320 | |
321 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
322 // property. Must be called after all command-line arguments have been | |
323 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
324 // combined_path(). | |
325 void expand_endorsed(); | |
326 | |
327 inline const char* get_base() const { return _items[_scp_base]; } | |
328 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
329 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
330 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
331 | |
332 // Combine all the components into a single c-heap-allocated string; caller | |
333 // must free the string if/when no longer needed. | |
334 char* combined_path(); | |
335 | |
336 private: | |
337 // Utility routines. | |
338 static char* add_to_path(const char* path, const char* str, bool prepend); | |
339 static char* add_jars_to_path(char* path, const char* directory); | |
340 | |
341 inline void reset_item_at(int index); | |
342 | |
343 // Array indices for the items that make up the sysclasspath. All except the | |
344 // base are allocated in the C heap and freed by this class. | |
345 enum { | |
346 _scp_prefix, // from -Xbootclasspath/p:... | |
347 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
348 _scp_base, // the default sysclasspath | |
349 _scp_suffix, // from -Xbootclasspath/a:... | |
350 _scp_nitems // the number of items, must be last. | |
351 }; | |
352 | |
353 const char* _items[_scp_nitems]; | |
354 DEBUG_ONLY(bool _expansion_done;) | |
355 }; | |
356 | |
357 SysClassPath::SysClassPath(const char* base) { | |
358 memset(_items, 0, sizeof(_items)); | |
359 _items[_scp_base] = base; | |
360 DEBUG_ONLY(_expansion_done = false;) | |
361 } | |
362 | |
363 SysClassPath::~SysClassPath() { | |
364 // Free everything except the base. | |
365 for (int i = 0; i < _scp_nitems; ++i) { | |
366 if (i != _scp_base) reset_item_at(i); | |
367 } | |
368 DEBUG_ONLY(_expansion_done = false;) | |
369 } | |
370 | |
371 inline void SysClassPath::set_base(const char* base) { | |
372 _items[_scp_base] = base; | |
373 } | |
374 | |
375 inline void SysClassPath::add_prefix(const char* prefix) { | |
376 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
377 } | |
378 | |
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379 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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380 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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381 } |
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382 |
0 | 383 inline void SysClassPath::add_suffix(const char* suffix) { |
384 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
385 } | |
386 | |
387 inline void SysClassPath::reset_item_at(int index) { | |
388 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
389 if (_items[index] != NULL) { | |
6197 | 390 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 391 _items[index] = NULL; |
392 } | |
393 } | |
394 | |
395 inline void SysClassPath::reset_path(const char* base) { | |
396 // Clear the prefix and suffix. | |
397 reset_item_at(_scp_prefix); | |
398 reset_item_at(_scp_suffix); | |
399 set_base(base); | |
400 } | |
401 | |
402 //------------------------------------------------------------------------------ | |
403 | |
404 void SysClassPath::expand_endorsed() { | |
405 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
406 | |
407 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
408 if (path == NULL) { | |
409 path = Arguments::get_endorsed_dir(); | |
410 assert(path != NULL, "no default for java.endorsed.dirs"); | |
411 } | |
412 | |
413 char* expanded_path = NULL; | |
414 const char separator = *os::path_separator(); | |
415 const char* const end = path + strlen(path); | |
416 while (path < end) { | |
417 const char* tmp_end = strchr(path, separator); | |
418 if (tmp_end == NULL) { | |
419 expanded_path = add_jars_to_path(expanded_path, path); | |
420 path = end; | |
421 } else { | |
6197 | 422 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 423 memcpy(dirpath, path, tmp_end - path); |
424 dirpath[tmp_end - path] = '\0'; | |
425 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 426 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 427 path = tmp_end + 1; |
428 } | |
429 } | |
430 _items[_scp_endorsed] = expanded_path; | |
431 DEBUG_ONLY(_expansion_done = true;) | |
432 } | |
433 | |
434 // Combine the bootclasspath elements, some of which may be null, into a single | |
435 // c-heap-allocated string. | |
436 char* SysClassPath::combined_path() { | |
437 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
438 assert(_expansion_done, "must call expand_endorsed() first."); | |
439 | |
440 size_t lengths[_scp_nitems]; | |
441 size_t total_len = 0; | |
442 | |
443 const char separator = *os::path_separator(); | |
444 | |
445 // Get the lengths. | |
446 int i; | |
447 for (i = 0; i < _scp_nitems; ++i) { | |
448 if (_items[i] != NULL) { | |
449 lengths[i] = strlen(_items[i]); | |
450 // Include space for the separator char (or a NULL for the last item). | |
451 total_len += lengths[i] + 1; | |
452 } | |
453 } | |
454 assert(total_len > 0, "empty sysclasspath not allowed"); | |
455 | |
456 // Copy the _items to a single string. | |
6197 | 457 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 458 char* cp_tmp = cp; |
459 for (i = 0; i < _scp_nitems; ++i) { | |
460 if (_items[i] != NULL) { | |
461 memcpy(cp_tmp, _items[i], lengths[i]); | |
462 cp_tmp += lengths[i]; | |
463 *cp_tmp++ = separator; | |
464 } | |
465 } | |
466 *--cp_tmp = '\0'; // Replace the extra separator. | |
467 return cp; | |
468 } | |
469 | |
470 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
471 char* | |
472 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
473 char *cp; | |
474 | |
475 assert(str != NULL, "just checking"); | |
476 if (path == NULL) { | |
477 size_t len = strlen(str) + 1; | |
6197 | 478 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 479 memcpy(cp, str, len); // copy the trailing null |
480 } else { | |
481 const char separator = *os::path_separator(); | |
482 size_t old_len = strlen(path); | |
483 size_t str_len = strlen(str); | |
484 size_t len = old_len + str_len + 2; | |
485 | |
486 if (prepend) { | |
6197 | 487 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 488 char* cp_tmp = cp; |
489 memcpy(cp_tmp, str, str_len); | |
490 cp_tmp += str_len; | |
491 *cp_tmp = separator; | |
492 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 493 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 494 } else { |
6197 | 495 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 496 char* cp_tmp = cp + old_len; |
497 *cp_tmp = separator; | |
498 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
499 } | |
500 } | |
501 return cp; | |
502 } | |
503 | |
504 // Scan the directory and append any jar or zip files found to path. | |
505 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
506 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
507 DIR* dir = os::opendir(directory); | |
508 if (dir == NULL) return path; | |
509 | |
510 char dir_sep[2] = { '\0', '\0' }; | |
511 size_t directory_len = strlen(directory); | |
512 const char fileSep = *os::file_separator(); | |
513 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
514 | |
515 /* Scan the directory for jars/zips, appending them to path. */ | |
516 struct dirent *entry; | |
6197 | 517 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 518 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
519 const char* name = entry->d_name; | |
520 const char* ext = name + strlen(name) - 4; | |
521 bool isJarOrZip = ext > name && | |
522 (os::file_name_strcmp(ext, ".jar") == 0 || | |
523 os::file_name_strcmp(ext, ".zip") == 0); | |
524 if (isJarOrZip) { | |
6197 | 525 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 526 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
527 path = add_to_path(path, jarpath, false); | |
6197 | 528 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 529 } |
530 } | |
6197 | 531 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 532 os::closedir(dir); |
533 return path; | |
534 } | |
535 | |
536 // Parses a memory size specification string. | |
489
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537 static bool atomull(const char *s, julong* result) { |
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538 julong n = 0; |
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539 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 540 if (args_read != 1) { |
541 return false; | |
542 } | |
543 while (*s != '\0' && isdigit(*s)) { | |
544 s++; | |
545 } | |
546 // 4705540: illegal if more characters are found after the first non-digit | |
547 if (strlen(s) > 1) { | |
548 return false; | |
549 } | |
550 switch (*s) { | |
551 case 'T': case 't': | |
552 *result = n * G * K; | |
489
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553 // Check for overflow. |
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554 if (*result/((julong)G * K) != n) return false; |
0 | 555 return true; |
556 case 'G': case 'g': | |
557 *result = n * G; | |
489
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558 if (*result/G != n) return false; |
0 | 559 return true; |
560 case 'M': case 'm': | |
561 *result = n * M; | |
489
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562 if (*result/M != n) return false; |
0 | 563 return true; |
564 case 'K': case 'k': | |
565 *result = n * K; | |
489
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566 if (*result/K != n) return false; |
0 | 567 return true; |
568 case '\0': | |
569 *result = n; | |
570 return true; | |
571 default: | |
572 return false; | |
573 } | |
574 } | |
575 | |
489
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576 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 577 if (size < min_size) return arg_too_small; |
578 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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579 if (size > max_uintx) return arg_too_big; |
0 | 580 return arg_in_range; |
581 } | |
582 | |
583 // Describe an argument out of range error | |
584 void Arguments::describe_range_error(ArgsRange errcode) { | |
585 switch(errcode) { | |
586 case arg_too_big: | |
587 jio_fprintf(defaultStream::error_stream(), | |
588 "The specified size exceeds the maximum " | |
589 "representable size.\n"); | |
590 break; | |
591 case arg_too_small: | |
592 case arg_unreadable: | |
593 case arg_in_range: | |
594 // do nothing for now | |
595 break; | |
596 default: | |
597 ShouldNotReachHere(); | |
598 } | |
599 } | |
600 | |
601 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
602 return CommandLineFlags::boolAtPut(name, &value, origin); | |
603 } | |
604 | |
605 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
606 double v; | |
607 if (sscanf(value, "%lf", &v) != 1) { | |
608 return false; | |
609 } | |
610 | |
611 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
612 return true; | |
613 } | |
614 return false; | |
615 } | |
616 | |
617 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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618 julong v; |
0 | 619 intx intx_v; |
620 bool is_neg = false; | |
489
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621 // Check the sign first since atomull() parses only unsigned values. |
0 | 622 if (*value == '-') { |
623 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
624 return false; | |
625 } | |
626 value++; | |
627 is_neg = true; | |
628 } | |
489
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629 if (!atomull(value, &v)) { |
0 | 630 return false; |
631 } | |
632 intx_v = (intx) v; | |
633 if (is_neg) { | |
634 intx_v = -intx_v; | |
635 } | |
636 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
637 return true; | |
638 } | |
639 uintx uintx_v = (uintx) v; | |
640 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
641 return true; | |
642 } | |
1064 | 643 uint64_t uint64_t_v = (uint64_t) v; |
644 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
645 return true; | |
646 } | |
0 | 647 return false; |
648 } | |
649 | |
650 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
651 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
652 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 653 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 654 return true; |
655 } | |
656 | |
657 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
658 const char* old_value = ""; | |
659 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
660 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
661 size_t new_len = strlen(new_value); | |
662 const char* value; | |
663 char* free_this_too = NULL; | |
664 if (old_len == 0) { | |
665 value = new_value; | |
666 } else if (new_len == 0) { | |
667 value = old_value; | |
668 } else { | |
6197 | 669 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 670 // each new setting adds another LINE to the switch: |
671 sprintf(buf, "%s\n%s", old_value, new_value); | |
672 value = buf; | |
673 free_this_too = buf; | |
674 } | |
675 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
676 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 677 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 678 if (free_this_too != NULL) { |
679 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 680 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 681 } |
682 return true; | |
683 } | |
684 | |
685 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
686 | |
687 // range of acceptable characters spelled out for portability reasons | |
688 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
689 #define BUFLEN 255 | |
690 char name[BUFLEN+1]; | |
691 char dummy; | |
692 | |
693 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
694 return set_bool_flag(name, false, origin); | |
695 } | |
696 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
697 return set_bool_flag(name, true, origin); | |
698 } | |
699 | |
700 char punct; | |
701 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
702 const char* value = strchr(arg, '=') + 1; | |
703 Flag* flag = Flag::find_flag(name, strlen(name)); | |
704 if (flag != NULL && flag->is_ccstr()) { | |
705 if (flag->ccstr_accumulates()) { | |
706 return append_to_string_flag(name, value, origin); | |
707 } else { | |
708 if (value[0] == '\0') { | |
709 value = NULL; | |
710 } | |
711 return set_string_flag(name, value, origin); | |
712 } | |
713 } | |
714 } | |
715 | |
716 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
717 const char* value = strchr(arg, '=') + 1; | |
718 // -XX:Foo:=xxx will reset the string flag to the given value. | |
719 if (value[0] == '\0') { | |
720 value = NULL; | |
721 } | |
722 return set_string_flag(name, value, origin); | |
723 } | |
724 | |
725 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
726 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
727 #define NUMBER_RANGE "[0123456789]" | |
728 char value[BUFLEN + 1]; | |
729 char value2[BUFLEN + 1]; | |
730 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
731 // Looks like a floating-point number -- try again with more lenient format string | |
732 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
733 return set_fp_numeric_flag(name, value, origin); | |
734 } | |
735 } | |
736 | |
737 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
738 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
739 return set_numeric_flag(name, value, origin); | |
740 } | |
741 | |
742 return false; | |
743 } | |
744 | |
745 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
746 assert(bldarray != NULL, "illegal argument"); | |
747 | |
748 if (arg == NULL) { | |
749 return; | |
750 } | |
751 | |
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752 int new_count = *count + 1; |
0 | 753 |
754 // expand the array and add arg to the last element | |
755 if (*bldarray == NULL) { | |
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756 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 757 } else { |
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758 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 759 } |
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760 (*bldarray)[*count] = strdup(arg); |
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761 *count = new_count; |
0 | 762 } |
763 | |
764 void Arguments::build_jvm_args(const char* arg) { | |
765 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
766 } | |
767 | |
768 void Arguments::build_jvm_flags(const char* arg) { | |
769 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
770 } | |
771 | |
772 // utility function to return a string that concatenates all | |
773 // strings in a given char** array | |
774 const char* Arguments::build_resource_string(char** args, int count) { | |
775 if (args == NULL || count == 0) { | |
776 return NULL; | |
777 } | |
778 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
779 for (int i = 1; i < count; i++) { | |
780 length += strlen(args[i]) + 1; // add 1 for a space | |
781 } | |
782 char* s = NEW_RESOURCE_ARRAY(char, length); | |
783 strcpy(s, args[0]); | |
784 for (int j = 1; j < count; j++) { | |
785 strcat(s, " "); | |
786 strcat(s, args[j]); | |
787 } | |
788 return (const char*) s; | |
789 } | |
790 | |
791 void Arguments::print_on(outputStream* st) { | |
792 st->print_cr("VM Arguments:"); | |
793 if (num_jvm_flags() > 0) { | |
794 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
795 } | |
796 if (num_jvm_args() > 0) { | |
797 st->print("jvm_args: "); print_jvm_args_on(st); | |
798 } | |
799 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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800 if (_java_class_path != NULL) { |
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801 char* path = _java_class_path->value(); |
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802 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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803 } |
0 | 804 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
805 } | |
806 | |
807 void Arguments::print_jvm_flags_on(outputStream* st) { | |
808 if (_num_jvm_flags > 0) { | |
809 for (int i=0; i < _num_jvm_flags; i++) { | |
810 st->print("%s ", _jvm_flags_array[i]); | |
811 } | |
812 st->print_cr(""); | |
813 } | |
814 } | |
815 | |
816 void Arguments::print_jvm_args_on(outputStream* st) { | |
817 if (_num_jvm_args > 0) { | |
818 for (int i=0; i < _num_jvm_args; i++) { | |
819 st->print("%s ", _jvm_args_array[i]); | |
820 } | |
821 st->print_cr(""); | |
822 } | |
823 } | |
824 | |
242 | 825 bool Arguments::process_argument(const char* arg, |
826 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
827 | |
828 JDK_Version since = JDK_Version(); | |
0 | 829 |
3250 | 830 if (parse_argument(arg, origin) || ignore_unrecognized) { |
831 return true; | |
0 | 832 } |
3250 | 833 |
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834 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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835 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 836 if (is_newly_obsolete(arg, &since)) { |
837 char version[256]; | |
838 since.to_string(version, sizeof(version)); | |
839 warning("ignoring option %s; support was removed in %s", argname, version); | |
840 return true; | |
841 } | |
842 | |
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843 // For locked flags, report a custom error message if available. |
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844 // Otherwise, report the standard unrecognized VM option. |
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845 |
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846 size_t arg_len; |
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847 const char* equal_sign = strchr(argname, '='); |
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848 if (equal_sign == NULL) { |
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849 arg_len = strlen(argname); |
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850 } else { |
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851 arg_len = equal_sign - argname; |
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852 } |
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853 |
11070 | 854 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true); |
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855 if (found_flag != NULL) { |
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856 char locked_message_buf[BUFLEN]; |
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857 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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858 if (strlen(locked_message_buf) == 0) { |
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859 if (found_flag->is_bool() && !has_plus_minus) { |
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860 jio_fprintf(defaultStream::error_stream(), |
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861 "Missing +/- setting for VM option '%s'\n", argname); |
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862 } else if (!found_flag->is_bool() && has_plus_minus) { |
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863 jio_fprintf(defaultStream::error_stream(), |
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864 "Unexpected +/- setting in VM option '%s'\n", argname); |
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865 } else { |
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866 jio_fprintf(defaultStream::error_stream(), |
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867 "Improperly specified VM option '%s'\n", argname); |
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868 } |
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869 } else { |
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870 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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871 } |
6017 | 872 } else { |
873 jio_fprintf(defaultStream::error_stream(), | |
874 "Unrecognized VM option '%s'\n", argname); | |
11070 | 875 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
876 if (fuzzy_matched != NULL) { | |
877 jio_fprintf(defaultStream::error_stream(), | |
878 "Did you mean '%s%s%s'?\n", | |
879 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
880 fuzzy_matched->name, | |
881 (fuzzy_matched->is_bool()) ? "" : "=<value>"); | |
882 } | |
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883 } |
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884 |
3250 | 885 // allow for commandline "commenting out" options like -XX:#+Verbose |
886 return arg[0] == '#'; | |
0 | 887 } |
888 | |
889 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
890 FILE* stream = fopen(file_name, "rb"); | |
891 if (stream == NULL) { | |
892 if (should_exist) { | |
893 jio_fprintf(defaultStream::error_stream(), | |
894 "Could not open settings file %s\n", file_name); | |
895 return false; | |
896 } else { | |
897 return true; | |
898 } | |
899 } | |
900 | |
901 char token[1024]; | |
902 int pos = 0; | |
903 | |
904 bool in_white_space = true; | |
905 bool in_comment = false; | |
906 bool in_quote = false; | |
907 char quote_c = 0; | |
908 bool result = true; | |
909 | |
910 int c = getc(stream); | |
6901 | 911 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 912 if (in_white_space) { |
913 if (in_comment) { | |
914 if (c == '\n') in_comment = false; | |
915 } else { | |
916 if (c == '#') in_comment = true; | |
917 else if (!isspace(c)) { | |
918 in_white_space = false; | |
919 token[pos++] = c; | |
920 } | |
921 } | |
922 } else { | |
923 if (c == '\n' || (!in_quote && isspace(c))) { | |
924 // token ends at newline, or at unquoted whitespace | |
925 // this allows a way to include spaces in string-valued options | |
926 token[pos] = '\0'; | |
927 logOption(token); | |
928 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
929 build_jvm_flags(token); | |
930 pos = 0; | |
931 in_white_space = true; | |
932 in_quote = false; | |
933 } else if (!in_quote && (c == '\'' || c == '"')) { | |
934 in_quote = true; | |
935 quote_c = c; | |
936 } else if (in_quote && (c == quote_c)) { | |
937 in_quote = false; | |
938 } else { | |
939 token[pos++] = c; | |
940 } | |
941 } | |
942 c = getc(stream); | |
943 } | |
944 if (pos > 0) { | |
945 token[pos] = '\0'; | |
946 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
947 build_jvm_flags(token); | |
948 } | |
949 fclose(stream); | |
950 return result; | |
951 } | |
952 | |
953 //============================================================================================================= | |
954 // Parsing of properties (-D) | |
955 | |
956 const char* Arguments::get_property(const char* key) { | |
957 return PropertyList_get_value(system_properties(), key); | |
958 } | |
959 | |
960 bool Arguments::add_property(const char* prop) { | |
961 const char* eq = strchr(prop, '='); | |
962 char* key; | |
963 // ns must be static--its address may be stored in a SystemProperty object. | |
964 const static char ns[1] = {0}; | |
965 char* value = (char *)ns; | |
966 | |
967 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 968 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 969 strncpy(key, prop, key_len); |
970 key[key_len] = '\0'; | |
971 | |
972 if (eq != NULL) { | |
973 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 974 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 975 strncpy(value, &prop[key_len + 1], value_len + 1); |
976 } | |
977 | |
978 if (strcmp(key, "java.compiler") == 0) { | |
979 process_java_compiler_argument(value); | |
980 FreeHeap(key); | |
981 if (eq != NULL) { | |
982 FreeHeap(value); | |
983 } | |
984 return true; | |
691 | 985 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 986 _java_command = value; |
987 | |
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988 // Record value in Arguments, but let it get passed to Java. |
691 | 989 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 990 // launcher.pid property is private and is processed |
991 // in process_sun_java_launcher_properties(); | |
992 // the sun.java.launcher property is passed on to the java application | |
993 FreeHeap(key); | |
994 if (eq != NULL) { | |
995 FreeHeap(value); | |
996 } | |
997 return true; | |
691 | 998 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 999 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1000 // its value without going through the property list or making a Java call. | |
1001 _java_vendor_url_bug = value; | |
691 | 1002 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1003 PropertyList_unique_add(&_system_properties, key, value, true); | |
1004 return true; | |
0 | 1005 } |
1006 // Create new property and add at the end of the list | |
1007 PropertyList_unique_add(&_system_properties, key, value); | |
1008 return true; | |
1009 } | |
1010 | |
1011 //=========================================================================================================== | |
1012 // Setting int/mixed/comp mode flags | |
1013 | |
1014 void Arguments::set_mode_flags(Mode mode) { | |
1015 // Set up default values for all flags. | |
1016 // If you add a flag to any of the branches below, | |
1017 // add a default value for it here. | |
1018 set_java_compiler(false); | |
1019 _mode = mode; | |
1020 | |
1021 // Ensure Agent_OnLoad has the correct initial values. | |
1022 // This may not be the final mode; mode may change later in onload phase. | |
1023 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1024 (char*)VM_Version::vm_info_string(), false); |
0 | 1025 |
1026 UseInterpreter = true; | |
1027 UseCompiler = true; | |
1028 UseLoopCounter = true; | |
1029 | |
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1030 #ifndef ZERO |
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1031 // Turn these off for mixed and comp. Leave them on for Zero. |
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1032 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1033 UseFastAccessorMethods = (mode == _int); |
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1034 } |
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1035 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1036 UseFastEmptyMethods = (mode == _int); |
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1037 } |
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1038 #endif |
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1039 |
0 | 1040 // Default values may be platform/compiler dependent - |
1041 // use the saved values | |
1042 ClipInlining = Arguments::_ClipInlining; | |
1043 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1044 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1045 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1046 | |
1047 // Change from defaults based on mode | |
1048 switch (mode) { | |
1049 default: | |
1050 ShouldNotReachHere(); | |
1051 break; | |
1052 case _int: | |
1053 UseCompiler = false; | |
1054 UseLoopCounter = false; | |
1055 AlwaysCompileLoopMethods = false; | |
1056 UseOnStackReplacement = false; | |
1057 break; | |
1058 case _mixed: | |
1059 // same as default | |
1060 break; | |
1061 case _comp: | |
1062 UseInterpreter = false; | |
1063 BackgroundCompilation = false; | |
1064 ClipInlining = false; | |
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1065 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1066 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1067 // compile a level 4 (C2) and then continue executing it. |
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1068 if (TieredCompilation) { |
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1069 Tier3InvokeNotifyFreqLog = 0; |
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1070 Tier4InvocationThreshold = 0; |
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1071 } |
0 | 1072 break; |
1073 } | |
1074 } | |
1075 | |
1076 // Conflict: required to use shared spaces (-Xshare:on), but | |
1077 // incompatible command line options were chosen. | |
1078 | |
1079 static void no_shared_spaces() { | |
1080 if (RequireSharedSpaces) { | |
1081 jio_fprintf(defaultStream::error_stream(), | |
1082 "Class data sharing is inconsistent with other specified options.\n"); | |
1083 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1084 } else { | |
1085 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1086 } | |
1087 } | |
1088 | |
1783 | 1089 void Arguments::set_tiered_flags() { |
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1090 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1091 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1092 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1093 } |
1094 if (CompilationPolicyChoice < 2) { | |
1095 vm_exit_during_initialization( | |
1096 "Incompatible compilation policy selected", NULL); | |
1097 } | |
1891
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1098 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1099 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
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1100 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1101 } |
10278 | 1102 if (!UseInterpreter) { // -Xcomp |
1103 Tier3InvokeNotifyFreqLog = 0; | |
1104 Tier4InvocationThreshold = 0; | |
1105 } | |
1783 | 1106 } |
1107 | |
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1108 #if INCLUDE_ALL_GCS |
4838 | 1109 static void disable_adaptive_size_policy(const char* collector_name) { |
1110 if (UseAdaptiveSizePolicy) { | |
1111 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1112 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1113 collector_name); | |
1114 } | |
1115 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1116 } | |
1117 } | |
1118 | |
0 | 1119 void Arguments::set_parnew_gc_flags() { |
1064 | 1120 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
342
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1121 "control point invariant"); |
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1122 assert(UseParNewGC, "Error"); |
0 | 1123 |
4838 | 1124 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1125 disable_adaptive_size_policy("UseParNewGC"); | |
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1126 |
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1127 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1128 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1129 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1130 } else if (ParallelGCThreads == 0) { |
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1131 jio_fprintf(defaultStream::error_stream(), |
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1132 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1133 vm_exit(1); |
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1134 } |
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1135 |
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1136 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1137 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1138 // we set them to 1024 and 1024. |
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1139 // See CR 6362902. |
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1140 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1141 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1142 } |
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1143 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1144 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1145 } |
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1146 |
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1147 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1148 // See CR 6362902. |
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1149 if (AlwaysTenure) { |
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1150 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1151 } |
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1152 // When using compressed oops, we use local overflow stacks, |
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1153 // rather than using a global overflow list chained through |
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1154 // the klass word of the object's pre-image. |
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1155 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1156 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1157 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1158 } |
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1159 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1160 } |
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1161 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1162 } |
1163 | |
1164 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1165 // sparc/solaris for certain applications, but would gain from | |
1166 // further optimization and tuning efforts, and would almost | |
1167 // certainly gain from analysis of platform and environment. | |
1168 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1169 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1170 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1171 |
0 | 1172 // If we are using CMS, we prefer to UseParNewGC, |
1173 // unless explicitly forbidden. | |
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1174 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1175 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1176 } |
1177 | |
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1178 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1179 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1180 |
1181 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1182 // as needed. | |
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1183 if (UseParNewGC) { |
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1184 set_parnew_gc_flags(); |
0 | 1185 } |
1186 | |
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1187 size_t max_heap = align_size_down(MaxHeapSize, |
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1188 CardTableRS::ct_max_alignment_constraint()); |
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1189 |
0 | 1190 // Now make adjustments for CMS |
2368
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1191 intx tenuring_default = (intx)6; |
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1192 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1193 |
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1194 // Preferred young gen size for "short" pauses: |
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1195 // upper bound depends on # of threads and NewRatio. |
0 | 1196 const uintx parallel_gc_threads = |
1197 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1198 const size_t preferred_max_new_size_unaligned = | |
2368
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1199 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1200 size_t preferred_max_new_size = |
0 | 1201 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1202 | |
1203 // Unless explicitly requested otherwise, size young gen | |
2368
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1204 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
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1205 |
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1206 // If either MaxNewSize or NewRatio is set on the command line, |
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1207 // assume the user is trying to set the size of the young gen. |
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1208 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1209 |
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1210 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1211 // NewSize was set on the command line and it is larger than |
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1212 // preferred_max_new_size. |
0 | 1213 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1214 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1215 } else { |
13
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1216 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1217 } |
1064 | 1218 if (PrintGCDetails && Verbose) { |
13
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1219 // Too early to use gclog_or_tty |
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1220 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1221 } |
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1222 |
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1223 // Code along this path potentially sets NewSize and OldSize |
1064 | 1224 if (PrintGCDetails && Verbose) { |
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1225 // Too early to use gclog_or_tty |
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1226 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1227 " initial_heap_size: " SIZE_FORMAT |
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1228 " max_heap: " SIZE_FORMAT, |
1064 | 1229 min_heap_size(), InitialHeapSize, max_heap); |
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1230 } |
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1231 size_t min_new = preferred_max_new_size; |
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1232 if (FLAG_IS_CMDLINE(NewSize)) { |
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1233 min_new = NewSize; |
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1234 } |
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1235 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1236 // Unless explicitly requested otherwise, make young gen |
1237 // at least min_new, and at most preferred_max_new_size. | |
1238 if (FLAG_IS_DEFAULT(NewSize)) { | |
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1239 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1240 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1241 if (PrintGCDetails && Verbose) { |
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1242 // Too early to use gclog_or_tty |
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1243 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1244 } |
0 | 1245 } |
1246 // Unless explicitly requested otherwise, size old gen | |
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1247 // so it's NewRatio x of NewSize. |
0 | 1248 if (FLAG_IS_DEFAULT(OldSize)) { |
1249 if (max_heap > NewSize) { | |
2368
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1250 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1251 if (PrintGCDetails && Verbose) { |
13
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1252 // Too early to use gclog_or_tty |
2368
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1253 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1254 } |
0 | 1255 } |
1256 } | |
1257 } | |
1258 } | |
1259 // Unless explicitly requested otherwise, definitely | |
1260 // promote all objects surviving "tenuring_default" scavenges. | |
1261 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1262 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1263 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1264 } |
1265 // If we decided above (or user explicitly requested) | |
1266 // `promote all' (via MaxTenuringThreshold := 0), | |
1267 // prefer minuscule survivor spaces so as not to waste | |
1268 // space for (non-existent) survivors | |
1269 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1270 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1271 } |
1272 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1273 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1274 // This is done in order to make ParNew+CMS configuration to work | |
1275 // with YoungPLABSize and OldPLABSize options. | |
1276 // See CR 6362902. | |
1277 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1278 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1279 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1280 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1281 // the value (either from the command line or ergonomics) of |
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1282 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1283 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
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1284 } else { |
0 | 1285 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1286 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1287 // we'll let it to take precedence. | |
1288 jio_fprintf(defaultStream::error_stream(), | |
886
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1289 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1290 " options are specified for the CMS collector." |
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1291 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1292 } |
1293 } | |
1145
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1294 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1295 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1296 // unless it was manually specified. This is because a too-low value |
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1297 // will slow down scavenges. |
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1298 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1299 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1300 } |
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1301 } |
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1302 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1303 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1304 // If either of the static initialization defaults have changed, note this |
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1305 // modification. |
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1306 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1307 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1308 } |
1284 | 1309 if (PrintGCDetails && Verbose) { |
1310 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1311 MarkStackSize / K, MarkStackSizeMax / K); | |
1312 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1313 } | |
0 | 1314 } |
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1315 #endif // INCLUDE_ALL_GCS |
0 | 1316 |
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1317 void set_object_alignment() { |
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1318 // Object alignment. |
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1319 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1320 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1321 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1322 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1323 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1324 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1325 |
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1326 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1327 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1328 |
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1329 // Oop encoding heap max |
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1330 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1331 |
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1332 #if INCLUDE_ALL_GCS |
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1333 // Set CMS global values |
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1334 CompactibleFreeListSpace::set_cms_values(); |
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1335 #endif // INCLUDE_ALL_GCS |
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1336 } |
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1337 |
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1338 bool verify_object_alignment() { |
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1339 // Object alignment. |
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1340 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1341 jio_fprintf(defaultStream::error_stream(), |
1829
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1342 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1343 (int)ObjectAlignmentInBytes); |
1571
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1344 return false; |
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1345 } |
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1346 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1347 jio_fprintf(defaultStream::error_stream(), |
1829
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1348 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1349 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1350 return false; |
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1351 } |
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1352 // It does not make sense to have big object alignment |
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1353 // since a space lost due to alignment will be greater |
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1354 // then a saved space from compressed oops. |
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1355 if ((int)ObjectAlignmentInBytes > 256) { |
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1356 jio_fprintf(defaultStream::error_stream(), |
7461
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1357 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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1358 (int)ObjectAlignmentInBytes); |
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1359 return false; |
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1360 } |
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1361 // In case page size is very small. |
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1362 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1363 jio_fprintf(defaultStream::error_stream(), |
7461
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1364 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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1365 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1366 return false; |
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1367 } |
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1368 return true; |
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1369 } |
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1370 |
135
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1371 inline uintx max_heap_for_compressed_oops() { |
1963 | 1372 // Avoid sign flip. |
6725
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1373 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
1963 | 1374 return 0; |
1375 } | |
6725
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1376 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
1064 | 1377 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1378 } |
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1379 |
0 | 1380 bool Arguments::should_auto_select_low_pause_collector() { |
1381 if (UseAutoGCSelectPolicy && | |
1382 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1383 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1384 if (PrintGCDetails) { | |
1385 // Cannot use gclog_or_tty yet. | |
1386 tty->print_cr("Automatic selection of the low pause collector" | |
1387 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1388 } | |
1389 return true; | |
1390 } | |
1391 return false; | |
1392 } | |
1393 | |
8741
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1394 void Arguments::set_use_compressed_oops() { |
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1395 #ifndef ZERO |
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1396 #ifdef _LP64 |
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1397 // MaxHeapSize is not set up properly at this point, but |
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1398 // the only value that can override MaxHeapSize if we are |
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1399 // to use UseCompressedOops is InitialHeapSize. |
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1400 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1401 |
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1402 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1403 #if !defined(COMPILER1) || defined(TIERED) |
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1404 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1405 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1406 } |
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1407 #endif |
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1408 #ifdef _WIN64 |
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1409 if (UseLargePages && UseCompressedOops) { |
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1410 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1411 // mode, when large pages are specified on windows. |
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1412 // This flag could be switched ON if narrow oop base address is set to 0, |
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1413 // see code in Universe::initialize_heap(). |
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1414 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1415 } |
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1416 #endif // _WIN64 |
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1417 } else { |
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1418 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1419 warning("Max heap size too large for Compressed Oops"); |
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1420 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1421 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1422 } |
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1423 } |
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1424 #endif // _LP64 |
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1425 #endif // ZERO |
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1426 } |
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1427 |
0 | 1428 void Arguments::set_ergonomics_flags() { |
1429 | |
4946 | 1430 if (os::is_server_class_machine()) { |
0 | 1431 // If no other collector is requested explicitly, |
1432 // let the VM select the collector based on | |
1433 // machine class and automatic selection policy. | |
1434 if (!UseSerialGC && | |
1435 !UseConcMarkSweepGC && | |
342
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1436 !UseG1GC && |
0 | 1437 !UseParNewGC && |
1438 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1439 if (should_auto_select_low_pause_collector()) { | |
1440 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1441 } else { | |
1442 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1443 } | |
6725
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1444 } |
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1445 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1446 // to be disabled, which hurts interpreter performance and decreases |
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1447 // server performance. On server class machines, keep the default |
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1448 // off unless it is asked for. Future work: either add bytecode rewriting |
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1449 // at link time, or rewrite bytecodes in non-shared methods. |
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1450 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
0 | 1451 no_shared_spaces(); |
1452 } | |
1453 } | |
113
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1454 |
1010 | 1455 #ifndef ZERO |
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1456 #ifdef _LP64 |
8741
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1457 set_use_compressed_oops(); |
6725
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1458 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1459 if (!UseCompressedOops) { |
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1460 if (UseCompressedKlassPointers) { |
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1461 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1462 } |
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1463 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1464 } else { |
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1465 // Turn on UseCompressedKlassPointers too |
6848
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1466 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1467 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1468 } |
6736
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1469 // Set the ClassMetaspaceSize to something that will not need to be |
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1470 // expanded, since it cannot be expanded. |
7982
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1471 if (UseCompressedKlassPointers) { |
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1472 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
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1473 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
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1474 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1475 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
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1476 // 100,000 classes seems like a good size, so 100M assumes around 1K |
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1477 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
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1478 // size per klass. Eventually, this will be parameterized because it |
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1479 // would also be useful to determine the optimal size of the |
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1480 // systemDictionary. |
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1481 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
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1482 } |
6736
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1483 } |
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1484 } |
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1485 // Also checks that certain machines are slower with compressed oops |
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1486 // in vm_version initialization code. |
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1487 #endif // _LP64 |
1010 | 1488 #endif // !ZERO |
0 | 1489 } |
1490 | |
1491 void Arguments::set_parallel_gc_flags() { | |
342
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1492 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1493 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1494 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1495 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1496 } |
4879 | 1497 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1498 |
1499 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1500 // of the physical memory, up to a maximum of 1GB. | |
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1501 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1502 Abstract_VM_Version::parallel_worker_threads()); |
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1503 if (ParallelGCThreads == 0) { |
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1504 jio_fprintf(defaultStream::error_stream(), |
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1505 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1506 vm_exit(1); |
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1507 } |
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1508 |
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1509 |
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1510 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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1511 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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1512 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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1513 // See CR 6362902 for details. |
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1514 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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1515 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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1516 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1517 } |
7471
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1518 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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1519 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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1520 } |
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1521 } |
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1522 |
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1523 if (UseParallelOldGC) { |
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1524 // Par compact uses lower default values since they are treated as |
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1525 // minimums. These are different defaults because of the different |
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1526 // interpretation and are not ergonomically set. |
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1527 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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1528 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1529 } |
1530 } | |
1531 } | |
1532 | |
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1533 void Arguments::set_g1_gc_flags() { |
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1534 assert(UseG1GC, "Error"); |
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1535 #ifdef COMPILER1 |
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1536 FastTLABRefill = false; |
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1537 #endif |
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1538 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1539 Abstract_VM_Version::parallel_worker_threads()); |
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1540 if (ParallelGCThreads == 0) { |
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1541 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1542 Abstract_VM_Version::parallel_worker_threads()); |
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1543 } |
751 | 1544 |
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1545 // MarkStackSize will be set (if it hasn't been set by the user) |
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1546 // when concurrent marking is initialized. |
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1547 // Its value will be based upon the number of parallel marking threads. |
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1548 // But we do set the maximum mark stack size here. |
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1549 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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1550 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1551 } |
1356 | 1552 |
1553 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1554 // In G1, we want the default GC overhead goal to be higher than | |
1555 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1556 // be expanded more aggressively than we would like it to. In | |
1557 // fact, even 10% seems to not be high enough in some cases | |
1558 // (especially small GC stress tests that the main thing they do | |
1559 // is allocation). We might consider increase it further. | |
1560 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1561 } | |
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1562 |
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|
1563 if (PrintGCDetails && Verbose) { |
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1564 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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|
1565 MarkStackSize / K, MarkStackSizeMax / K); |
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|
1566 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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|
1567 } |
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|
1568 } |
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|
1569 |
8854
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|
1570 julong Arguments::limit_by_allocatable_memory(julong limit) { |
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1571 julong max_allocatable; |
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1572 julong result = limit; |
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|
1573 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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|
1574 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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|
1575 } |
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|
1576 return result; |
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|
1577 } |
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|
1578 |
10990
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|
1579 void Arguments::set_heap_base_min_address() { |
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|
1580 if (FLAG_IS_DEFAULT(HeapBaseMinAddress) && UseG1GC && HeapBaseMinAddress < 1*G) { |
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|
1581 // By default HeapBaseMinAddress is 2G on all platforms except Solaris x86. |
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1582 // G1 currently needs a lot of C-heap, so on Solaris we have to give G1 |
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|
1583 // some extra space for the C-heap compared to other collectors. |
11066
c92b74c62d97
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|
1584 // Use FLAG_SET_DEFAULT here rather than FLAG_SET_ERGO to make sure that |
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|
1585 // code that checks for default values work correctly. |
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|
1586 FLAG_SET_DEFAULT(HeapBaseMinAddress, 1*G); |
10990
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|
1587 } |
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|
1588 } |
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|
1589 |
1064 | 1590 void Arguments::set_heap_size() { |
1591 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1592 // Deprecated flag | |
1593 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1594 } | |
1595 | |
1596 const julong phys_mem = | |
1597 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1598 : (julong)MaxRAM; | |
1599 | |
1600 // If the maximum heap size has not been set with -Xmx, | |
1601 // then set it as fraction of the size of physical memory, | |
1602 // respecting the maximum and minimum sizes of the heap. | |
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1603 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1604 julong reasonable_max = phys_mem / MaxRAMFraction; |
1605 | |
1606 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1607 // Small physical memory, so use a minimum fraction of it for the heap | |
1608 reasonable_max = phys_mem / MinRAMFraction; | |
1609 } else { | |
1610 // Not-small physical memory, so require a heap at least | |
1611 // as large as MaxHeapSize | |
1612 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1613 } | |
1614 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1615 // Limit the heap size to ErgoHeapSizeLimit | |
1616 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
342
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|
1617 } |
1064 | 1618 if (UseCompressedOops) { |
1619 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1620 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1621 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1622 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1623 // but it should be not less than default MaxHeapSize. | |
1624 max_coop_heap -= HeapBaseMinAddress; | |
1625 } | |
1626 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1627 } |
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|
1628 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1629 |
1630 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1631 // An initial heap size was specified on the command line, | |
1632 // so be sure that the maximum size is consistent. Done | |
8854
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|
1633 // after call to limit_by_allocatable_memory because that |
1064 | 1634 // method might reduce the allocation size. |
1635 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1636 } | |
1637 | |
342
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|
1638 if (PrintGCDetails && Verbose) { |
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|
1639 // Cannot use gclog_or_tty yet. |
1064 | 1640 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1641 } |
1064 | 1642 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1643 } | |
1644 | |
10241
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|
1645 // If the minimum or initial heap_size have not been set or requested to be set |
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|
1646 // ergonomically, set them accordingly. |
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|
1647 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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|
1648 julong reasonable_minimum = (julong)(OldSize + NewSize); |
84cb6f20afb3
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|
1649 |
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|
1650 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1651 |
8854
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|
1652 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
84cb6f20afb3
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|
1653 |
10241
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|
1654 if (InitialHeapSize == 0) { |
d17700c82d7d
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|
1655 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1656 |
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|
1657 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1658 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1659 |
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|
1660 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
d17700c82d7d
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|
1661 |
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|
1662 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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|
1663 // Cannot use gclog_or_tty yet. |
d17700c82d7d
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|
1664 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
d17700c82d7d
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tschatzl
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diff
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|
1665 } |
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diff
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|
1666 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
342
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|
1667 } |
10241
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|
1668 // If the minimum heap size has not been set (via -Xms), |
d17700c82d7d
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diff
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|
1669 // synchronize with InitialHeapSize to avoid errors with the default value. |
d17700c82d7d
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diff
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|
1670 if (min_heap_size() == 0) { |
d17700c82d7d
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diff
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|
1671 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
d17700c82d7d
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diff
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|
1672 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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diff
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|
1673 // Cannot use gclog_or_tty yet. |
d17700c82d7d
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|
1674 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
d17700c82d7d
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diff
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|
1675 } |
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diff
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|
1676 } |
342
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diff
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|
1677 } |
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|
1678 } |
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diff
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|
1679 |
0 | 1680 // This must be called after ergonomics because we want bytecode rewriting |
1681 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1682 void Arguments::set_bytecode_flags() { | |
1683 // Better not attempt to store into a read-only space. | |
1684 if (UseSharedSpaces) { | |
1685 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1686 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1687 } | |
1688 | |
1689 if (!RewriteBytecodes) { | |
1690 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1691 } | |
1692 } | |
1693 | |
1694 // Aggressive optimization flags -XX:+AggressiveOpts | |
1695 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
|
1696 #ifdef COMPILER2 |
10278 | 1697 if (AggressiveUnboxing) { |
1698 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1699 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1700 } else if (!EliminateAutoBox) { | |
1701 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1702 AggressiveUnboxing = false; | |
1703 } | |
1704 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1705 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1706 } else if (!DoEscapeAnalysis) { | |
1707 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1708 AggressiveUnboxing = false; | |
1709 } | |
1710 } | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1711 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
|
1712 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1713 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
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|
1714 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1715 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1716 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
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|
1717 } |
ff5961f4c095
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parents:
0
diff
changeset
|
1718 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1719 // 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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0
diff
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|
1720 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
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489
diff
changeset
|
1721 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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0
diff
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|
1722 add_property(buffer); |
ff5961f4c095
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0
diff
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|
1723 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
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|
1724 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
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|
1725 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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363
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|
1726 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1727 #endif |
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0
diff
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|
1728 |
0 | 1729 if (AggressiveOpts) { |
61 | 1730 // Sample flag setting code |
1731 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1732 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1733 // } | |
0 | 1734 } |
1735 } | |
1736 | |
1737 //=========================================================================================================== | |
1738 // Parsing of java.compiler property | |
1739 | |
1740 void Arguments::process_java_compiler_argument(char* arg) { | |
1741 // For backwards compatibility, Djava.compiler=NONE or "" | |
1742 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1743 // is also specified. | |
1744 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1745 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1746 } | |
1747 } | |
1748 | |
1749 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1750 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
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sla
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2243
diff
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|
1751 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1752 _created_by_gamma_launcher = true; |
da091bb67459
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2243
diff
changeset
|
1753 } |
0 | 1754 } |
1755 | |
1756 bool Arguments::created_by_java_launcher() { | |
1757 assert(_sun_java_launcher != NULL, "property must have value"); | |
1758 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1759 } | |
1760 | |
2302
da091bb67459
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2243
diff
changeset
|
1761 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
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parents:
2243
diff
changeset
|
1762 return _created_by_gamma_launcher; |
da091bb67459
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parents:
2243
diff
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|
1763 } |
da091bb67459
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diff
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|
1764 |
0 | 1765 //=========================================================================================================== |
1766 // Parsing of main arguments | |
1767 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1768 bool Arguments::verify_interval(uintx val, uintx min, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1769 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1770 // Returns true iff value is in the inclusive interval [min..max] |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1771 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1772 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1773 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1774 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1775 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1776 "%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
|
1777 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
1188
diff
changeset
|
1778 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1779 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
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diff
changeset
|
1780 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
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diff
changeset
|
1781 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1782 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
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diff
changeset
|
1783 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
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diff
changeset
|
1784 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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changeset
|
1785 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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parents:
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diff
changeset
|
1786 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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parents:
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diff
changeset
|
1787 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
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diff
changeset
|
1788 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1789 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
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diff
changeset
|
1790 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1791 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1792 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1793 |
0 | 1794 bool Arguments::verify_percentage(uintx value, const char* name) { |
1795 if (value <= 100) { | |
1796 return true; | |
1797 } | |
1798 jio_fprintf(defaultStream::error_stream(), | |
1799 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1800 name, value); | |
1801 return false; | |
1802 } | |
1803 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1804 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1805 #ifdef ASSERT |
0 | 1806 static bool verify_serial_gc_flags() { |
1807 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1808 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1809 UseParallelGC || UseParallelOldGC)); |
0 | 1810 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1811 #endif // ASSERT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1812 #endif // INCLUDE_ALL_GCS |
0 | 1813 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1814 // check if do gclog rotation |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
changeset
|
1815 // +UseGCLogFileRotation is a must, |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1816 // no gc log rotation when log file not supplied or |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1817 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
changeset
|
1818 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1819 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1820 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1821 (NumberOfGCLogFiles == 0) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1822 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1823 jio_fprintf(defaultStream::output_stream(), |
3769
ef2d1b8f2dd4
7051430: CMS: ongoing CMS cycle should terminate abruptly to allow prompt JVM termination at exit
ysr
parents:
3767
diff
changeset
|
1824 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1825 "where num_of_file > 0 and num_of_size > 0\n" |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1826 "GC log rotation is turned off\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1827 UseGCLogFileRotation = false; |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1828 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1829 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1830 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1831 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1832 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1833 jio_fprintf(defaultStream::output_stream(), |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1834 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1835 } |
2a241e764894
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minqi
parents:
3349
diff
changeset
|
1836 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1837 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1838 // Check consistency of GC selection |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1839 bool Arguments::check_gc_consistency() { |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1840 check_gclog_consistency(); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1841 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1842 // Ensure that the user has not selected conflicting sets |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1843 // of collectors. [Note: this check is merely a user convenience; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1844 // collectors over-ride each other so that only a non-conflicting |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1845 // set is selected; however what the user gets is not what they |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1846 // may have expected from the combination they asked for. It's |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1847 // better to reduce user confusion by not allowing them to |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1848 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1849 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1850 if (UseSerialGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1851 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1852 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1853 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1854 if (i > 1) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1855 jio_fprintf(defaultStream::error_stream(), |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1856 "Conflicting collector combinations in option list; " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1857 "please refer to the release notes for the combinations " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1858 "allowed\n"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1859 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1860 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1861 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1862 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1863 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1864 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1865 status = false; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1866 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1867 return status; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1868 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1869 |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1870 void Arguments::check_deprecated_gcs() { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1871 if (UseConcMarkSweepGC && !UseParNewGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1872 warning("Using the DefNew young collector with the CMS collector is deprecated " |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1873 "and will likely be removed in a future release"); |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1874 } |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1875 |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1876 if (UseParNewGC && !UseConcMarkSweepGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1877 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1878 // set up UseSerialGC properly, so that can't be used in the check here. |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1879 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1880 "and will likely be removed in a future release"); |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
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diff
changeset
|
1881 } |
7453 | 1882 |
1883 if (CMSIncrementalMode) { | |
1884 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1885 } | |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
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diff
changeset
|
1886 } |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1887 |
8734 | 1888 void Arguments::check_deprecated_gc_flags() { |
1889 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1890 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1891 "and will likely be removed in future release"); | |
1892 } | |
1893 } | |
1894 | |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
changeset
|
1895 // Check stack pages settings |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1896 bool Arguments::check_stack_pages() |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
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changeset
|
1897 { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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diff
changeset
|
1898 bool status = true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
changeset
|
1899 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1900 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1901 // greater stack shadow pages can't generate instruction to bang stack |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1902 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1903 return status; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
changeset
|
1904 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1905 |
0 | 1906 // Check the consistency of vm_init_args |
1907 bool Arguments::check_vm_args_consistency() { | |
1908 // Method for adding checks for flag consistency. | |
1909 // The intent is to warn the user of all possible conflicts, | |
1910 // before returning an error. | |
1911 // Note: Needs platform-dependent factoring. | |
1912 bool status = true; | |
1913 | |
1914 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1915 // builds so the cost of stack banging can be measured. | |
1916 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1917 if (!UseBoundThreads && !UseStackBanging) { | |
1918 jio_fprintf(defaultStream::error_stream(), | |
1919 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1920 | |
1921 status = false; | |
1922 } | |
1923 #endif | |
1924 | |
1925 if (TLABRefillWasteFraction == 0) { | |
1926 jio_fprintf(defaultStream::error_stream(), | |
1927 "TLABRefillWasteFraction should be a denominator, " | |
1928 "not " SIZE_FORMAT "\n", | |
1929 TLABRefillWasteFraction); | |
1930 status = false; | |
1931 } | |
1932 | |
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1933 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 1934 "AdaptiveSizePolicyWeight"); |
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1935 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1936 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1937 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1938 |
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1939 // Divide by bucket size to prevent a large size from causing rollover when |
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1940 // calculating amount of memory needed to be allocated for the String table. |
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1941 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
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1942 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1943 |
0 | 1944 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1945 jio_fprintf(defaultStream::error_stream(), | |
1946 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1947 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1948 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1949 status = false; | |
1950 } | |
1951 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1952 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1953 | |
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1954 // Min/MaxMetaspaceFreeRatio |
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1955 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1956 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1957 |
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1958 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1959 jio_fprintf(defaultStream::error_stream(), |
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1960 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1961 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1962 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1963 MinMetaspaceFreeRatio, |
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1964 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1965 MaxMetaspaceFreeRatio); |
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1966 status = false; |
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1967 } |
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1968 |
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1969 // Trying to keep 100% free is not practical |
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1970 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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1971 |
0 | 1972 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
1973 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1974 } | |
1975 | |
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1976 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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1977 // Settings to encourage splitting. |
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1978 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 1979 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
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1980 } |
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|
1981 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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1982 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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1983 } |
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|
1984 } |
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1985 |
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1986 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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1987 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1988 if (GCTimeLimit == 100) { |
1989 // Turn off gc-overhead-limit-exceeded checks | |
1990 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
1991 } | |
1992 | |
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1993 status = status && check_gc_consistency(); |
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1994 status = status && check_stack_pages(); |
0 | 1995 |
1996 if (CMSIncrementalMode) { | |
1997 if (!UseConcMarkSweepGC) { | |
1998 jio_fprintf(defaultStream::error_stream(), | |
1999 "error: invalid argument combination.\n" | |
2000 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2001 "selected in order\nto use CMSIncrementalMode.\n"); | |
2002 status = false; | |
2003 } else { | |
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2004 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2005 "CMSIncrementalDutyCycle"); |
10
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2006 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2007 "CMSIncrementalDutyCycleMin"); |
10
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2008 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2009 "CMSIncrementalSafetyFactor"); |
10
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2010 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2011 "CMSIncrementalOffset"); |
10
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2012 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2013 "CMSExpAvgFactor"); |
2014 // If it was not set on the command line, set | |
2015 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2016 if (CMSInitiatingOccupancyFraction < 0) { | |
2017 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2018 } | |
2019 } | |
2020 } | |
2021 | |
2022 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2023 // insists that we hold the requisite locks so that the iteration is | |
2024 // MT-safe. For the verification at start-up and shut-down, we don't | |
2025 // yet have a good way of acquiring and releasing these locks, | |
2026 // which are not visible at the CollectedHeap level. We want to | |
2027 // be able to acquire these locks and then do the iteration rather | |
2028 // than just disable the lock verification. This will be fixed under | |
2029 // bug 4788986. | |
2030 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
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|
2031 if (VerifyDuringStartup) { |
0 | 2032 warning("Heap verification at start-up disabled " |
2033 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
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2034 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2035 } |
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2036 |
0 | 2037 if (VerifyBeforeExit) { |
2038 warning("Heap verification at shutdown disabled " | |
2039 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2040 VerifyBeforeExit = false; // Disable verification at shutdown | |
2041 } | |
2042 } | |
2043 | |
2044 // Note: only executed in non-PRODUCT mode | |
2045 if (!UseAsyncConcMarkSweepGC && | |
2046 (ExplicitGCInvokesConcurrent || | |
2047 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2048 jio_fprintf(defaultStream::error_stream(), | |
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7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
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|
2049 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2050 " with -UseAsyncConcMarkSweepGC"); |
2051 status = false; | |
2052 } | |
2053 | |
2366
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6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
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|
2054 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
1fb790245268
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|
2055 |
8001
db9981fd3124
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|
2056 #if INCLUDE_ALL_GCS |
1283
1c72304f1885
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|
2057 if (UseG1GC) { |
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|
2058 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
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|
2059 "InitiatingHeapOccupancyPercent"); |
2174
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|
2060 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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|
2061 "G1RefProcDrainInterval"); |
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|
2062 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
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|
2063 "G1ConcMarkStepDurationMillis"); |
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|
2064 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
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|
2065 "G1ConcRSHotCardLimit"); |
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|
2066 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
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|
2067 "G1ConcRSLogCacheSize"); |
1283
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|
2068 } |
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2069 if (UseConcMarkSweepGC) { |
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2070 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
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2071 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
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2072 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
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2073 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
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2074 |
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2075 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
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2076 |
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2077 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
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2078 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
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2079 status = status && verify_interval(CMS_FLSWeight, 0, 100, "CMS_FLSWeight"); |
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|
2080 |
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|
2081 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
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|
2082 |
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|
2083 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
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|
2084 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
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|
2085 |
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|
2086 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
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|
2087 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
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|
2088 status = status && verify_interval(CMSPrecleanNumerator, 0, CMSPrecleanDenominator - 1, "CMSPrecleanNumerator"); |
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|
2089 |
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|
2090 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
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|
2091 |
12f651e29f6b
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|
2092 status = status && verify_min_value(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
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|
2093 |
12f651e29f6b
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|
2094 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
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|
2095 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
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|
2096 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
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|
2097 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
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|
2098 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
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|
2099 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2100 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2101 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2102 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2103 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2104 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2105 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2106 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2107 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2108 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2109 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2110 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2111 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2112 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2113 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2114 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2115 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2116 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2117 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2118 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2119 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2120 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2121 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2122 // 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
|
2123 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2124 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2125 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2126 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2127 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
|
2128 |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2129 status = status && verify_min_value(ClassMetaspaceSize, 1*M, |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2130 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2131 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2132 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2133 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2134 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2135 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2136 status = status && verify_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2137 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2138 status = status && verify_min_value(HeapSizePerGCThread, (uintx) os::vm_page_size(), "HeapSizePerGCThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2139 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2140 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2141 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2142 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2143 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2144 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2145 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2146 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2147 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2148 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2149 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2150 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2151 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2152 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2153 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2154 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2155 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2156 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2157 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2158 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2159 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2160 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2161 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2162 // 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
|
2163 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2164 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2165 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2166 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2167 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2168 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2169 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2170 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2171 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2172 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2173 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2174 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2175 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2176 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2177 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2178 " on sun4v; please understand that you are using at your own risk!"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2179 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2180 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2181 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2182 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2183 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2184 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2185 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2186 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2187 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
|
2188 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2189 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2190 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2191 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2192 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2193 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2194 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2195 // 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
|
2196 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2197 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2198 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2199 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2200 "ContendedPaddingWidth=" INTX_FORMAT " must be the between %d and %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2201 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2202 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2203 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2204 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2205 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2206 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2207 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2208 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2209 "ContendedPaddingWidth=" INTX_FORMAT " must be the multiple of %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2210 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2211 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2212 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2213 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2214 // 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
|
2215 // 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
|
2216 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2217 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2218 jio_fprintf(defaultStream::error_stream(), |
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2219 "Invalid InitialCodeCacheSize=%dK. Must be at least %dK.\n", InitialCodeCacheSize/K, |
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|
2220 os::vm_page_size()/K); |
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|
2221 status = false; |
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|
2222 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
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|
2223 jio_fprintf(defaultStream::error_stream(), |
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|
2224 "Invalid ReservedCodeCacheSize: %dK. Must be at least InitialCodeCacheSize=%dK.\n", |
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|
2225 ReservedCodeCacheSize/K, InitialCodeCacheSize/K); |
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|
2226 status = false; |
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|
2227 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
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|
2228 jio_fprintf(defaultStream::error_stream(), |
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|
2229 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
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|
2230 min_code_cache_size/K); |
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|
2231 status = false; |
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7ac80525ece9
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|
2232 } else if (ReservedCodeCacheSize > 2*G) { |
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diff
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|
2233 // Code cache size larger than MAXINT is not supported. |
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8015635: Crash when specifying very large code cache size
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diff
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|
2234 jio_fprintf(defaultStream::error_stream(), |
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diff
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|
2235 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
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diff
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|
2236 (2*G)/M); |
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|
2237 status = false; |
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|
2238 } |
0 | 2239 return status; |
2240 } | |
2241 | |
2242 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2243 const char* option_type) { | |
2244 if (ignore) return false; | |
2245 | |
2246 const char* spacer = " "; | |
2247 if (option_type == NULL) { | |
2248 option_type = ++spacer; // Set both to the empty string. | |
2249 } | |
2250 | |
2251 if (os::obsolete_option(option)) { | |
2252 jio_fprintf(defaultStream::error_stream(), | |
2253 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2254 option->optionString); | |
2255 return false; | |
2256 } else { | |
2257 jio_fprintf(defaultStream::error_stream(), | |
2258 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2259 option->optionString); | |
2260 return true; | |
2261 } | |
2262 } | |
2263 | |
2264 static const char* user_assertion_options[] = { | |
2265 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2266 }; | |
2267 | |
2268 static const char* system_assertion_options[] = { | |
2269 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2270 }; | |
2271 | |
2272 // Return true if any of the strings in null-terminated array 'names' matches. | |
2273 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2274 // the option must match exactly. | |
2275 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2276 bool tail_allowed) { | |
2277 for (/* empty */; *names != NULL; ++names) { | |
2278 if (match_option(option, *names, tail)) { | |
2279 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2280 return true; | |
2281 } | |
2282 } | |
2283 } | |
2284 return false; | |
2285 } | |
2286 | |
1284 | 2287 bool Arguments::parse_uintx(const char* value, |
2288 uintx* uintx_arg, | |
2289 uintx min_size) { | |
2290 | |
2291 // Check the sign first since atomull() parses only unsigned values. | |
2292 bool value_is_positive = !(*value == '-'); | |
2293 | |
2294 if (value_is_positive) { | |
2295 julong n; | |
2296 bool good_return = atomull(value, &n); | |
2297 if (good_return) { | |
2298 bool above_minimum = n >= min_size; | |
2299 bool value_is_too_large = n > max_uintx; | |
2300 | |
2301 if (above_minimum && !value_is_too_large) { | |
2302 *uintx_arg = n; | |
2303 return true; | |
2304 } | |
2305 } | |
2306 } | |
2307 return false; | |
2308 } | |
2309 | |
0 | 2310 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
489
2494ab195856
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|
2311 julong* long_arg, |
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|
2312 julong min_size) { |
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|
2313 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2314 return check_memory_size(*long_arg, min_size); |
2315 } | |
2316 | |
2317 // Parse JavaVMInitArgs structure | |
2318 | |
2319 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2320 // For components of the system classpath. | |
2321 SysClassPath scp(Arguments::get_sysclasspath()); | |
2322 bool scp_assembly_required = false; | |
2323 | |
2324 // Save default settings for some mode flags | |
2325 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2326 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2327 Arguments::_ClipInlining = ClipInlining; | |
2328 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2329 | |
3341
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|
2330 // Setup flags for mixed which is the default |
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|
2331 set_mode_flags(_mixed); |
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|
2332 |
0 | 2333 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2334 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2335 if (result != JNI_OK) { | |
2336 return result; | |
2337 } | |
2338 | |
2339 // Parse JavaVMInitArgs structure passed in | |
2340 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2341 if (result != JNI_OK) { | |
2342 return result; | |
2343 } | |
2344 | |
531
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2345 if (AggressiveOpts) { |
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|
2346 // Insert alt-rt.jar between user-specified bootclasspath |
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2347 // prefix and the default bootclasspath. os::set_boot_path() |
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2348 // uses meta_index_dir as the default bootclasspath directory. |
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|
2349 const char* altclasses_jar = "alt-rt.jar"; |
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|
2350 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
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diff
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|
2351 strlen(altclasses_jar); |
6197 | 2352 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
531
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diff
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|
2353 strcpy(altclasses_path, get_meta_index_dir()); |
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|
2354 strcat(altclasses_path, altclasses_jar); |
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diff
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|
2355 scp.add_suffix_to_prefix(altclasses_path); |
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diff
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|
2356 scp_assembly_required = true; |
6197 | 2357 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
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|
2358 } |
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|
2359 |
0 | 2360 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2361 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2362 if (result != JNI_OK) { | |
2363 return result; | |
2364 } | |
2365 | |
2366 // Do final processing now that all arguments have been parsed | |
2367 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2368 if (result != JNI_OK) { | |
2369 return result; | |
2370 } | |
2371 | |
2372 return JNI_OK; | |
2373 } | |
2374 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2375 // Checks if name in command-line argument -agent{lib,path}:name[=options] |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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9077
diff
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|
2376 // 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
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diff
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|
2377 // 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
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9077
diff
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|
2378 // -agentlib |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2379 bool valid_hprof_or_jdwp_agent(char *name, bool is_path) { |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
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9077
diff
changeset
|
2380 char *_name; |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
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9077
diff
changeset
|
2381 const char *_hprof = "hprof", *_jdwp = "jdwp"; |
3c0584fec1e6
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diff
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|
2382 size_t _len_hprof, _len_jdwp, _len_prefix; |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2383 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2384 if (is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2385 if ((_name = strrchr(name, (int) *os::file_separator())) == NULL) { |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2386 return false; |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2387 } |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2388 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2389 _name++; // skip past last path separator |
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diff
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|
2390 _len_prefix = strlen(JNI_LIB_PREFIX); |
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|
2391 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2392 if (strncmp(_name, JNI_LIB_PREFIX, _len_prefix) != 0) { |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2393 return false; |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2394 } |
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|
2395 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2396 _name += _len_prefix; |
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diff
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|
2397 _len_hprof = strlen(_hprof); |
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|
2398 _len_jdwp = strlen(_jdwp); |
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|
2399 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
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|
2400 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
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|
2401 _name += _len_hprof; |
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diff
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|
2402 } |
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|
2403 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
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|
2404 _name += _len_jdwp; |
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diff
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|
2405 } |
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|
2406 else { |
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diff
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|
2407 return false; |
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diff
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|
2408 } |
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|
2409 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2410 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2411 return false; |
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diff
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|
2412 } |
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|
2413 |
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diff
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|
2414 return true; |
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diff
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|
2415 } |
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|
2416 |
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|
2417 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
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|
2418 return true; |
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diff
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|
2419 } |
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|
2420 |
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|
2421 return false; |
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|
2422 } |
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|
2423 |
0 | 2424 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2425 SysClassPath* scp_p, | |
2426 bool* scp_assembly_required_p, | |
2427 FlagValueOrigin origin) { | |
2428 // Remaining part of option string | |
2429 const char* tail; | |
2430 | |
2431 // iterate over arguments | |
2432 for (int index = 0; index < args->nOptions; index++) { | |
2433 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2434 | |
2435 const JavaVMOption* option = args->options + index; | |
2436 | |
2437 if (!match_option(option, "-Djava.class.path", &tail) && | |
2438 !match_option(option, "-Dsun.java.command", &tail) && | |
2439 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2440 | |
2441 // add all jvm options to the jvm_args string. This string | |
2442 // is used later to set the java.vm.args PerfData string constant. | |
2443 // the -Djava.class.path and the -Dsun.java.command options are | |
2444 // omitted from jvm_args string as each have their own PerfData | |
2445 // string constant object. | |
2446 build_jvm_args(option->optionString); | |
2447 } | |
2448 | |
2449 // -verbose:[class/gc/jni] | |
2450 if (match_option(option, "-verbose", &tail)) { | |
2451 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2452 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2453 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2454 } else if (!strcmp(tail, ":gc")) { | |
2455 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2456 } else if (!strcmp(tail, ":jni")) { | |
2457 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2458 } | |
2459 // -da / -ea / -disableassertions / -enableassertions | |
2460 // These accept an optional class/package name separated by a colon, e.g., | |
2461 // -da:java.lang.Thread. | |
2462 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2463 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2464 if (*tail == '\0') { | |
2465 JavaAssertions::setUserClassDefault(enable); | |
2466 } else { | |
2467 assert(*tail == ':', "bogus match by match_option()"); | |
2468 JavaAssertions::addOption(tail + 1, enable); | |
2469 } | |
2470 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2471 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2472 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2473 JavaAssertions::setSystemClassDefault(enable); | |
2474 // -bootclasspath: | |
2475 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2476 scp_p->reset_path(tail); | |
2477 *scp_assembly_required_p = true; | |
2478 // -bootclasspath/a: | |
2479 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2480 scp_p->add_suffix(tail); | |
2481 *scp_assembly_required_p = true; | |
2482 // -bootclasspath/p: | |
2483 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2484 scp_p->add_prefix(tail); | |
2485 *scp_assembly_required_p = true; | |
2486 // -Xrun | |
2487 } else if (match_option(option, "-Xrun", &tail)) { | |
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2488 if (tail != NULL) { |
0 | 2489 const char* pos = strchr(tail, ':'); |
2490 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2491 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2492 name[len] = '\0'; |
2493 | |
2494 char *options = NULL; | |
2495 if(pos != NULL) { | |
2496 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2497 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2498 } |
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2499 #if !INCLUDE_JVMTI |
0 | 2500 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2501 jio_fprintf(defaultStream::error_stream(), |
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2502 "Profiling and debugging agents are not supported in this VM\n"); |
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2503 return JNI_ERR; |
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|
2504 } |
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2505 #endif // !INCLUDE_JVMTI |
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2506 add_init_library(name, options); |
0 | 2507 } |
2508 // -agentlib and -agentpath | |
2509 } else if (match_option(option, "-agentlib:", &tail) || | |
2510 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2511 if(tail != NULL) { | |
2512 const char* pos = strchr(tail, '='); | |
2513 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2514 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2515 name[len] = '\0'; |
2516 | |
2517 char *options = NULL; | |
2518 if(pos != NULL) { | |
6197 | 2519 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2520 } |
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2521 #if !INCLUDE_JVMTI |
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|
2522 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
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2523 jio_fprintf(defaultStream::error_stream(), |
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2524 "Profiling and debugging agents are not supported in this VM\n"); |
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|
2525 return JNI_ERR; |
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|
2526 } |
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|
2527 #endif // !INCLUDE_JVMTI |
0 | 2528 add_init_agent(name, options, is_absolute_path); |
2529 } | |
2530 // -javaagent | |
2531 } else if (match_option(option, "-javaagent:", &tail)) { | |
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2532 #if !INCLUDE_JVMTI |
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2533 jio_fprintf(defaultStream::error_stream(), |
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2534 "Instrumentation agents are not supported in this VM\n"); |
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2535 return JNI_ERR; |
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|
2536 #else |
0 | 2537 if(tail != NULL) { |
6197 | 2538 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2539 add_init_agent("instrument", options, false); |
2540 } | |
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|
2541 #endif // !INCLUDE_JVMTI |
0 | 2542 // -Xnoclassgc |
2543 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2544 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2545 // -Xincgc: i-CMS | |
2546 } else if (match_option(option, "-Xincgc", &tail)) { | |
2547 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2548 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2549 // -Xnoincgc: no i-CMS | |
2550 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2551 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2552 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2553 // -Xconcgc | |
2554 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2555 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2556 // -Xnoconcgc | |
2557 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2558 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2559 // -Xbatch | |
2560 } else if (match_option(option, "-Xbatch", &tail)) { | |
2561 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2562 // -Xmn for compatibility with other JVM vendors | |
2563 } else if (match_option(option, "-Xmn", &tail)) { | |
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2564 julong long_initial_eden_size = 0; |
0 | 2565 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2566 if (errcode != arg_in_range) { | |
2567 jio_fprintf(defaultStream::error_stream(), | |
2568 "Invalid initial eden size: %s\n", option->optionString); | |
2569 describe_range_error(errcode); | |
2570 return JNI_EINVAL; | |
2571 } | |
1064 | 2572 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2573 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2574 // -Xms |
2575 } else if (match_option(option, "-Xms", &tail)) { | |
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|
2576 julong long_initial_heap_size = 0; |
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2577 // an initial heap size of 0 means automatically determine |
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2578 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2579 if (errcode != arg_in_range) { |
2580 jio_fprintf(defaultStream::error_stream(), | |
2581 "Invalid initial heap size: %s\n", option->optionString); | |
2582 describe_range_error(errcode); | |
2583 return JNI_EINVAL; | |
2584 } | |
1064 | 2585 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2586 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2587 set_min_heap_size(InitialHeapSize); |
0 | 2588 // -Xmx |
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|
2589 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
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2590 julong long_max_heap_size = 0; |
0 | 2591 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2592 if (errcode != arg_in_range) { | |
2593 jio_fprintf(defaultStream::error_stream(), | |
2594 "Invalid maximum heap size: %s\n", option->optionString); | |
2595 describe_range_error(errcode); | |
2596 return JNI_EINVAL; | |
2597 } | |
1064 | 2598 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2599 // Xmaxf |
2600 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2601 int maxf = (int)(atof(tail) * 100); | |
2602 if (maxf < 0 || maxf > 100) { | |
2603 jio_fprintf(defaultStream::error_stream(), | |
2604 "Bad max heap free percentage size: %s\n", | |
2605 option->optionString); | |
2606 return JNI_EINVAL; | |
2607 } else { | |
2608 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2609 } | |
2610 // Xminf | |
2611 } else if (match_option(option, "-Xminf", &tail)) { | |
2612 int minf = (int)(atof(tail) * 100); | |
2613 if (minf < 0 || minf > 100) { | |
2614 jio_fprintf(defaultStream::error_stream(), | |
2615 "Bad min heap free percentage size: %s\n", | |
2616 option->optionString); | |
2617 return JNI_EINVAL; | |
2618 } else { | |
2619 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2620 } | |
2621 // -Xss | |
2622 } else if (match_option(option, "-Xss", &tail)) { | |
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|
2623 julong long_ThreadStackSize = 0; |
0 | 2624 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2625 if (errcode != arg_in_range) { | |
2626 jio_fprintf(defaultStream::error_stream(), | |
2627 "Invalid thread stack size: %s\n", option->optionString); | |
2628 describe_range_error(errcode); | |
2629 return JNI_EINVAL; | |
2630 } | |
2631 // Internally track ThreadStackSize in units of 1024 bytes. | |
2632 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2633 round_to((int)long_ThreadStackSize, K) / K); | |
2634 // -Xoss | |
2635 } else if (match_option(option, "-Xoss", &tail)) { | |
2636 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
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|
2637 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
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diff
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|
2638 julong long_CodeCacheExpansionSize = 0; |
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|
2639 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
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diff
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|
2640 if (errcode != arg_in_range) { |
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|
2641 jio_fprintf(defaultStream::error_stream(), |
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|
2642 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
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|
2643 os::vm_page_size()/K); |
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|
2644 return JNI_EINVAL; |
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|
2645 } |
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diff
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|
2646 FLAG_SET_CMDLINE(uintx, CodeCacheExpansionSize, (uintx)long_CodeCacheExpansionSize); |
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
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diff
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|
2647 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
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diff
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|
2648 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
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|
2649 julong long_ReservedCodeCacheSize = 0; |
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|
2650 |
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.
anoll
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10319
diff
changeset
|
2651 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2652 if (errcode != arg_in_range) { |
2653 jio_fprintf(defaultStream::error_stream(), | |
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|
2654 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2655 return JNI_EINVAL; |
2656 } | |
2657 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
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diff
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|
2658 //-XX:IncreaseFirstTierCompileThresholdAt= |
91eba9f82325
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diff
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|
2659 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
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|
2660 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
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|
2661 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
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|
2662 jio_fprintf(defaultStream::error_stream(), |
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diff
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|
2663 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
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|
2664 option->optionString); |
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|
2665 return JNI_EINVAL; |
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|
2666 } |
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|
2667 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2668 // -green |
2669 } else if (match_option(option, "-green", &tail)) { | |
2670 jio_fprintf(defaultStream::error_stream(), | |
2671 "Green threads support not available\n"); | |
2672 return JNI_EINVAL; | |
2673 // -native | |
2674 } else if (match_option(option, "-native", &tail)) { | |
2675 // HotSpot always uses native threads, ignore silently for compatibility | |
2676 // -Xsqnopause | |
2677 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2678 // EVM option, ignore silently for compatibility | |
2679 // -Xrs | |
2680 } else if (match_option(option, "-Xrs", &tail)) { | |
2681 // Classic/EVM option, new functionality | |
2682 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2683 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2684 // change default internal VM signals used - lower case for back compat | |
2685 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2686 // -Xoptimize | |
2687 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2688 // EVM option, ignore silently for compatibility | |
2689 // -Xprof | |
2690 } else if (match_option(option, "-Xprof", &tail)) { | |
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|
2691 #if INCLUDE_FPROF |
0 | 2692 _has_profile = true; |
6854
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|
2693 #else // INCLUDE_FPROF |
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|
2694 jio_fprintf(defaultStream::error_stream(), |
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|
2695 "Flat profiling is not supported in this VM.\n"); |
fad90b102190
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|
2696 return JNI_ERR; |
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|
2697 #endif // INCLUDE_FPROF |
0 | 2698 // -Xconcurrentio |
2699 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2700 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2701 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2702 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2703 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2704 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2705 | |
2706 // -Xinternalversion | |
2707 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2708 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2709 VM_Version::internal_vm_info_string()); | |
2710 vm_exit(0); | |
2711 #ifndef PRODUCT | |
2712 // -Xprintflags | |
2713 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2714 CommandLineFlags::printFlags(tty, false); |
0 | 2715 vm_exit(0); |
2716 #endif | |
2717 // -D | |
2718 } else if (match_option(option, "-D", &tail)) { | |
2719 if (!add_property(tail)) { | |
2720 return JNI_ENOMEM; | |
2721 } | |
2722 // Out of the box management support | |
2723 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
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|
2724 #if INCLUDE_MANAGEMENT |
0 | 2725 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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|
2726 #else |
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2727 jio_fprintf(defaultStream::output_stream(), |
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2728 "-Dcom.sun.management is not supported in this VM.\n"); |
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2729 return JNI_ERR; |
8081
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2730 #endif |
0 | 2731 } |
2732 // -Xint | |
2733 } else if (match_option(option, "-Xint", &tail)) { | |
2734 set_mode_flags(_int); | |
2735 // -Xmixed | |
2736 } else if (match_option(option, "-Xmixed", &tail)) { | |
2737 set_mode_flags(_mixed); | |
2738 // -Xcomp | |
2739 } else if (match_option(option, "-Xcomp", &tail)) { | |
2740 // for testing the compiler; turn off all flags that inhibit compilation | |
2741 set_mode_flags(_comp); | |
2742 // -Xshare:dump | |
2743 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2744 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2745 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2746 // -Xshare:on | |
2747 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2748 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2749 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2750 // -Xshare:auto | |
2751 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2752 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2753 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2754 // -Xshare:off | |
2755 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2756 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2757 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2758 // -Xverify | |
2759 } else if (match_option(option, "-Xverify", &tail)) { | |
2760 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2761 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2762 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2763 } else if (strcmp(tail, ":remote") == 0) { | |
2764 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2765 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2766 } else if (strcmp(tail, ":none") == 0) { | |
2767 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2768 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2769 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2770 return JNI_EINVAL; | |
2771 } | |
2772 // -Xdebug | |
2773 } else if (match_option(option, "-Xdebug", &tail)) { | |
2774 // note this flag has been used, then ignore | |
2775 set_xdebug_mode(true); | |
2776 // -Xnoagent | |
2777 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2778 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2779 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2780 // Bind user level threads to kernel threads (Solaris only) | |
2781 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2782 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2783 // Redirect GC output to the file. -Xloggc:<filename> | |
2784 // ostream_init_log(), when called will use this filename | |
2785 // to initialize a fileStream. | |
2786 _gc_log_filename = strdup(tail); | |
2787 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2788 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2789 | |
2790 // JNI hooks | |
2791 } else if (match_option(option, "-Xcheck", &tail)) { | |
2792 if (!strcmp(tail, ":jni")) { | |
6854
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2793 #if !INCLUDE_JNI_CHECK |
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2794 warning("JNI CHECKING is not supported in this VM"); |
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|
2795 #else |
0 | 2796 CheckJNICalls = true; |
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2797 #endif // INCLUDE_JNI_CHECK |
0 | 2798 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2799 "check")) { | |
2800 return JNI_EINVAL; | |
2801 } | |
2802 } else if (match_option(option, "vfprintf", &tail)) { | |
2803 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2804 } else if (match_option(option, "exit", &tail)) { | |
2805 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2806 } else if (match_option(option, "abort", &tail)) { | |
2807 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2808 // -XX:+AggressiveHeap | |
2809 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2810 | |
2811 // This option inspects the machine and attempts to set various | |
2812 // parameters to be optimal for long-running, memory allocation | |
2813 // intensive jobs. It is intended for machines with large | |
2814 // amounts of cpu and memory. | |
2815 | |
2816 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2817 // VM, but we may not be able to represent the total physical memory | |
2818 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2819 // Thus, we need to make sure we're using a julong for intermediate | |
2820 // calculations. | |
2821 julong initHeapSize; | |
2822 julong total_memory = os::physical_memory(); | |
2823 | |
2824 if (total_memory < (julong)256*M) { | |
2825 jio_fprintf(defaultStream::error_stream(), | |
2826 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2827 vm_exit(1); | |
2828 } | |
2829 | |
2830 // The heap size is half of available memory, or (at most) | |
2831 // all of possible memory less 160mb (leaving room for the OS | |
2832 // when using ISM). This is the maximum; because adaptive sizing | |
2833 // is turned on below, the actual space used may be smaller. | |
2834 | |
2835 initHeapSize = MIN2(total_memory / (julong)2, | |
2836 total_memory - (julong)160*M); | |
2837 | |
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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|
2838 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2839 |
2840 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2841 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2842 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2843 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2844 set_min_heap_size(initHeapSize); |
0 | 2845 } |
2846 if (FLAG_IS_DEFAULT(NewSize)) { | |
2847 // Make the young generation 3/8ths of the total heap. | |
2848 FLAG_SET_CMDLINE(uintx, NewSize, | |
2849 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2850 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2851 } | |
2852 | |
6917
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2853 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2854 FLAG_SET_DEFAULT(UseLargePages, true); |
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2855 #endif |
0 | 2856 |
2857 // Increase some data structure sizes for efficiency | |
2858 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2859 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2860 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2861 | |
2862 // See the OldPLABSize comment below, but replace 'after promotion' | |
2863 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2864 // space per-gc-thread buffers. The default is 4kw. | |
2865 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2866 | |
2867 // OldPLABSize is the size of the buffers in the old gen that | |
2868 // UseParallelGC uses to promote live data that doesn't fit in the | |
2869 // survivor spaces. At any given time, there's one for each gc thread. | |
2870 // The default size is 1kw. These buffers are rarely used, since the | |
2871 // survivor spaces are usually big enough. For specjbb, however, there | |
2872 // are occasions when there's lots of live data in the young gen | |
2873 // and we end up promoting some of it. We don't have a definite | |
2874 // explanation for why bumping OldPLABSize helps, but the theory | |
2875 // is that a bigger PLAB results in retaining something like the | |
2876 // original allocation order after promotion, which improves mutator | |
2877 // locality. A minor effect may be that larger PLABs reduce the | |
2878 // number of PLAB allocation events during gc. The value of 8kw | |
2879 // was arrived at by experimenting with specjbb. | |
2880 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2881 | |
2882 // Enable parallel GC and adaptive generation sizing | |
2883 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
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2884 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
2885 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2886 |
2887 // Encourage steady state memory management | |
2888 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2889 | |
2890 // This appears to improve mutator locality | |
2891 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2892 | |
2893 // Get around early Solaris scheduling bug | |
2894 // (affinity vs other jobs on system) | |
2895 // but disallow DR and offlining (5008695). | |
2896 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2897 | |
2898 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2899 // The last option must always win. | |
2900 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2901 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2902 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2903 // The last option must always win. | |
2904 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2905 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2906 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2907 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2908 jio_fprintf(defaultStream::error_stream(), | |
2909 "Please use CMSClassUnloadingEnabled in place of " | |
2910 "CMSPermGenSweepingEnabled in the future\n"); | |
2911 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2912 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2913 jio_fprintf(defaultStream::error_stream(), | |
2914 "Please use -XX:+UseGCOverheadLimit in place of " | |
2915 "-XX:+UseGCTimeLimit in the future\n"); | |
2916 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2917 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2918 jio_fprintf(defaultStream::error_stream(), | |
2919 "Please use -XX:-UseGCOverheadLimit in place of " | |
2920 "-XX:-UseGCTimeLimit in the future\n"); | |
2921 // The TLE options are for compatibility with 1.3 and will be | |
2922 // removed without notice in a future release. These options | |
2923 // are not to be documented. | |
2924 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2925 // No longer used. | |
2926 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2927 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2928 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2929 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2930 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2931 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2932 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2933 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2934 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2935 // No longer used. | |
2936 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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|
2937 julong long_tlab_size = 0; |
0 | 2938 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2939 if (errcode != arg_in_range) { | |
2940 jio_fprintf(defaultStream::error_stream(), | |
2941 "Invalid TLAB size: %s\n", option->optionString); | |
2942 describe_range_error(errcode); | |
2943 return JNI_EINVAL; | |
2944 } | |
2945 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2946 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2947 // No longer used. | |
2948 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2949 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2950 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2951 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2952 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2953 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2954 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2955 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2956 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2957 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2958 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2959 #if defined(DTRACE_ENABLED) |
0 | 2960 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2961 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2962 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2963 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2964 #else // defined(DTRACE_ENABLED) |
0 | 2965 jio_fprintf(defaultStream::error_stream(), |
4006 | 2966 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2967 return JNI_EINVAL; |
4006 | 2968 #endif // defined(DTRACE_ENABLED) |
0 | 2969 #ifdef ASSERT |
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|
2970 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2971 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2972 // disable scavenge before parallel mark-compact | |
2973 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2974 #endif | |
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|
2975 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 2976 julong cms_blocks_to_claim = (julong)atol(tail); |
2977 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
2978 jio_fprintf(defaultStream::error_stream(), | |
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2979 "Please use -XX:OldPLABSize in place of " |
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2980 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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|
2981 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
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6631166: CMS: better heuristics when combatting fragmentation
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|
2982 julong cms_blocks_to_claim = (julong)atol(tail); |
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2983 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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|
2984 jio_fprintf(defaultStream::error_stream(), |
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|
2985 "Please use -XX:OldPLABSize in place of " |
0 | 2986 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
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|
2987 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
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2988 julong old_plab_size = 0; |
0 | 2989 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
2990 if (errcode != arg_in_range) { | |
2991 jio_fprintf(defaultStream::error_stream(), | |
2992 "Invalid old PLAB size: %s\n", option->optionString); | |
2993 describe_range_error(errcode); | |
2994 return JNI_EINVAL; | |
2995 } | |
489
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|
2996 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 2997 jio_fprintf(defaultStream::error_stream(), |
2998 "Please use -XX:OldPLABSize in place of " | |
2999 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
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3000 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
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|
3001 julong young_plab_size = 0; |
0 | 3002 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3003 if (errcode != arg_in_range) { | |
3004 jio_fprintf(defaultStream::error_stream(), | |
3005 "Invalid young PLAB size: %s\n", option->optionString); | |
3006 describe_range_error(errcode); | |
3007 return JNI_EINVAL; | |
3008 } | |
489
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|
3009 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3010 jio_fprintf(defaultStream::error_stream(), |
3011 "Please use -XX:YoungPLABSize in place of " | |
3012 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3013 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3014 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3015 julong stack_size = 0; | |
3016 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3017 if (errcode != arg_in_range) { | |
3018 jio_fprintf(defaultStream::error_stream(), | |
3019 "Invalid mark stack size: %s\n", option->optionString); | |
3020 describe_range_error(errcode); | |
3021 return JNI_EINVAL; | |
3022 } | |
3023 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3024 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3025 julong max_stack_size = 0; | |
3026 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3027 if (errcode != arg_in_range) { | |
3028 jio_fprintf(defaultStream::error_stream(), | |
3029 "Invalid maximum mark stack size: %s\n", | |
3030 option->optionString); | |
3031 describe_range_error(errcode); | |
3032 return JNI_EINVAL; | |
3033 } | |
3034 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3035 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3036 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3037 uintx conc_threads = 0; | |
3038 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3039 jio_fprintf(defaultStream::error_stream(), | |
3040 "Invalid concurrent threads: %s\n", option->optionString); | |
3041 return JNI_EINVAL; | |
3042 } | |
3043 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3044 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3045 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3046 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
|
3047 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3048 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3049 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3050 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3051 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3052 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3053 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3054 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3055 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3056 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3057 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3058 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
|
3059 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
|
3060 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3061 } 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
|
3062 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
|
3063 "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
|
3064 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3065 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3066 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3067 // Skip -XX:Flags= since that case has already been handled |
3068 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3069 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3070 return JNI_EINVAL; | |
3071 } | |
3072 } | |
3073 // Unknown option | |
3074 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3075 return JNI_ERR; | |
3076 } | |
3077 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3078 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3079 // 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
|
3080 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3081 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3082 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3083 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3084 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3085 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3086 #endif // LINUX |
0 | 3087 return JNI_OK; |
3088 } | |
3089 | |
3090 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3091 // This must be done after all -D arguments have been processed. | |
3092 scp_p->expand_endorsed(); | |
3093 | |
3094 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3095 // Assemble the bootclasspath elements into the final path. | |
3096 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3097 } | |
3098 | |
3099 // This must be done after all arguments have been processed. | |
3100 // java_compiler() true means set to "NONE" or empty. | |
3101 if (java_compiler() && !xdebug_mode()) { | |
3102 // For backwards compatibility, we switch to interpreted mode if | |
3103 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3104 // not specified. | |
3105 set_mode_flags(_int); | |
3106 } | |
3107 if (CompileThreshold == 0) { | |
3108 set_mode_flags(_int); | |
3109 } | |
3110 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3111 // 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
|
3112 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
|
3113 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
|
3114 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3115 |
0 | 3116 #ifndef COMPILER2 |
3117 // Don't degrade server performance for footprint | |
3118 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3119 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3120 // No need for large granularity pages w/small heaps. | |
3121 // Note that large pages are enabled/disabled for both the | |
3122 // Java heap and the code cache. | |
3123 FLAG_SET_DEFAULT(UseLargePages, false); | |
3124 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3125 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3126 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3127 TieredCompilation = false; |
0 | 3128 #else |
3129 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3130 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3131 } | |
3132 #endif | |
3133 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3134 // 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
|
3135 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3136 // 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
|
3137 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3138 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3139 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3140 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3141 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3142 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3143 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3144 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3145 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3146 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3147 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3148 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3149 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3150 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3151 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3152 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3153 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3154 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3155 |
0 | 3156 if (!check_vm_args_consistency()) { |
3157 return JNI_ERR; | |
3158 } | |
3159 | |
3160 return JNI_OK; | |
3161 } | |
3162 | |
3163 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3164 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3165 scp_assembly_required_p); | |
3166 } | |
3167 | |
3168 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3169 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3170 scp_assembly_required_p); | |
3171 } | |
3172 | |
3173 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3174 const int N_MAX_OPTIONS = 64; | |
3175 const int OPTION_BUFFER_SIZE = 1024; | |
3176 char buffer[OPTION_BUFFER_SIZE]; | |
3177 | |
3178 // The variable will be ignored if it exceeds the length of the buffer. | |
3179 // Don't check this variable if user has special privileges | |
3180 // (e.g. unix su command). | |
3181 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3182 !os::have_special_privileges()) { | |
3183 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3184 jio_fprintf(defaultStream::error_stream(), | |
3185 "Picked up %s: %s\n", name, buffer); | |
3186 char* rd = buffer; // pointer to the input string (rd) | |
3187 int i; | |
3188 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3189 while (isspace(*rd)) rd++; // skip whitespace | |
3190 if (*rd == 0) break; // we re done when the input string is read completely | |
3191 | |
3192 // The output, option string, overwrites the input string. | |
3193 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3194 // input string (rd). | |
3195 char* wrt = rd; | |
3196 | |
3197 options[i++].optionString = wrt; // Fill in option | |
3198 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3199 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3200 int quote = *rd; // matching quote to look for | |
3201 rd++; // don't copy open quote | |
3202 while (*rd != quote) { // include everything (even spaces) up until quote | |
3203 if (*rd == 0) { // string termination means unmatched string | |
3204 jio_fprintf(defaultStream::error_stream(), | |
3205 "Unmatched quote in %s\n", name); | |
3206 return JNI_ERR; | |
3207 } | |
3208 *wrt++ = *rd++; // copy to option string | |
3209 } | |
3210 rd++; // don't copy close quote | |
3211 } else { | |
3212 *wrt++ = *rd++; // copy to option string | |
3213 } | |
3214 } | |
3215 // Need to check if we're done before writing a NULL, | |
3216 // because the write could be to the byte that rd is pointing to. | |
3217 if (*rd++ == 0) { | |
3218 *wrt = 0; | |
3219 break; | |
3220 } | |
3221 *wrt = 0; // Zero terminate option | |
3222 } | |
3223 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3224 JavaVMInitArgs vm_args; | |
3225 vm_args.version = JNI_VERSION_1_2; | |
3226 vm_args.options = options; | |
3227 vm_args.nOptions = i; | |
564 | 3228 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3229 |
3230 if (PrintVMOptions) { | |
3231 const char* tail; | |
3232 for (int i = 0; i < vm_args.nOptions; i++) { | |
3233 const JavaVMOption *option = vm_args.options + i; | |
3234 if (match_option(option, "-XX:", &tail)) { | |
3235 logOption(tail); | |
3236 } | |
3237 } | |
3238 } | |
3239 | |
3240 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3241 } | |
3242 return JNI_OK; | |
3243 } | |
3244 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3245 void Arguments::set_shared_spaces_flags() { |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3246 #ifdef _LP64 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3247 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3248 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3249 // CompressedOops cannot be used with CDS. The offsets of oopmaps and |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3250 // static fields are incorrect in the archive. With some more clever |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3251 // initialization, this restriction can probably be lifted. |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3252 if (UseCompressedOops) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3253 if (must_share) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3254 warning("disabling compressed oops because of %s", |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3255 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3256 FLAG_SET_CMDLINE(bool, UseCompressedOops, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3257 FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3258 } else { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3259 // Prefer compressed oops to class data sharing |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3260 if (UseSharedSpaces && Verbose) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3261 warning("turning off use of shared archive because of compressed oops"); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3262 } |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3263 no_shared_spaces(); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3264 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3265 } |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3266 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3267 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3268 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3269 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3270 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
|
3271 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3272 UseSharedSpaces = false; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3273 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3274 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3275 |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3276 // Disable options not supported in this release, with a warning if they |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3277 // were explicitly requested on the command-line |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3278 #define UNSUPPORTED_OPTION(opt, description) \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3279 do { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3280 if (opt) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3281 if (FLAG_IS_CMDLINE(opt)) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3282 warning(description " is disabled in this release."); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3283 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3284 FLAG_SET_DEFAULT(opt, false); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3285 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3286 } while(0) |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3287 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3288 |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3289 #define UNSUPPORTED_GC_OPTION(gc) \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3290 do { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3291 if (gc) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3292 if (FLAG_IS_CMDLINE(gc)) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3293 warning(#gc " is not supported in this VM. Using Serial GC."); \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3294 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3295 FLAG_SET_DEFAULT(gc, false); \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3296 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3297 } while(0) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3298 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3299 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3300 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3301 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3302 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
|
3303 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3304 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3305 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3306 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3307 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3308 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3309 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3310 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3311 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3312 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3313 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3314 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3315 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3316 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3317 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
|
3318 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
|
3319 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3320 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
|
3321 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
|
3322 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
|
3323 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3324 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3325 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
|
3326 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
|
3327 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3328 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3329 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3330 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
|
3331 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3332 strncpy(shared_archive_path, SharedArchiveFile, strlen(SharedArchiveFile) + 1); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3333 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3334 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3335 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3336 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3337 |
0 | 3338 // Parse entry point called from JNI_CreateJavaVM |
3339 | |
3340 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3341 | |
3342 // Remaining part of option string | |
3343 const char* tail; | |
3344 | |
3345 // 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
|
3346 const char* hotspotrc = ".hotspotrc"; |
0 | 3347 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
|
3348 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
|
3349 |
564 | 3350 const char* flags_file; |
0 | 3351 int index; |
3352 for (index = 0; index < args->nOptions; index++) { | |
3353 const JavaVMOption *option = args->options + index; | |
3354 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3355 flags_file = tail; |
0 | 3356 settings_file_specified = true; |
3357 } | |
3358 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3359 PrintVMOptions = true; | |
3360 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3361 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
|
3362 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3363 } |
564 | 3364 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3365 IgnoreUnrecognizedVMOptions = true; | |
3366 } | |
3367 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3368 IgnoreUnrecognizedVMOptions = false; | |
3369 } | |
1150 | 3370 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3371 CommandLineFlags::printFlags(tty, false); |
1150 | 3372 vm_exit(0); |
3373 } | |
6197 | 3374 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3375 #if INCLUDE_NMT |
6197 | 3376 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3377 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3378 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
|
3379 "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
|
3380 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3381 #endif |
6197 | 3382 } |
3383 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3384 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3385 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3386 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3387 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3388 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3389 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3390 #endif |
564 | 3391 } |
3392 | |
3393 if (IgnoreUnrecognizedVMOptions) { | |
3394 // uncast const to modify the flag args->ignoreUnrecognized | |
3395 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3396 } | |
3397 | |
3398 // Parse specified settings file | |
3399 if (settings_file_specified) { | |
3400 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3401 return JNI_EINVAL; | |
3402 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3403 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3404 #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
|
3405 // Parse default .hotspotrc settings file |
0 | 3406 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3407 return JNI_EINVAL; | |
3408 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3409 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3410 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
|
3411 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
|
3412 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
|
3413 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3414 #endif |
0 | 3415 } |
3416 | |
3417 if (PrintVMOptions) { | |
3418 for (index = 0; index < args->nOptions; index++) { | |
3419 const JavaVMOption *option = args->options + index; | |
3420 if (match_option(option, "-XX:", &tail)) { | |
3421 logOption(tail); | |
3422 } | |
3423 } | |
3424 } | |
3425 | |
3426 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3427 jint result = parse_vm_init_args(args); | |
3428 if (result != JNI_OK) { | |
3429 return result; | |
3430 } | |
3431 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3432 // 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
|
3433 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3434 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3435 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3436 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3437 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3438 // 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
|
3439 // 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
|
3440 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
|
3441 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
|
3442 "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
|
3443 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3444 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3445 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3446 #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
|
3447 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3448 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3449 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3450 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3451 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3452 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3453 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3454 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3455 |
0 | 3456 #ifndef PRODUCT |
3457 if (TraceBytecodesAt != 0) { | |
3458 TraceBytecodes = true; | |
3459 } | |
3460 if (CountCompiledCalls) { | |
3461 if (UseCounterDecay) { | |
3462 warning("UseCounterDecay disabled because CountCalls is set"); | |
3463 UseCounterDecay = false; | |
3464 } | |
3465 } | |
3466 #endif // PRODUCT | |
3467 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3468 // 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
|
3469 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3470 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3471 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3472 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
|
3473 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3474 EnableInvokeDynamic = false; |
710 | 3475 } |
3476 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3477 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3478 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3479 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3480 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
|
3481 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3482 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3483 } |
710 | 3484 |
0 | 3485 if (PrintGCDetails) { |
3486 // Turn on -verbose:gc options as well | |
3487 PrintGC = true; | |
3488 } | |
3489 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3490 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3491 // 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
|
3492 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3493 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3494 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3495 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3496 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3497 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3498 // 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
|
3499 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
|
3500 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3501 #if !INCLUDE_ALL_GCS |
1064 | 3502 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3503 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3504 #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
|
3505 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3506 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
|
3507 "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
|
3508 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3509 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3510 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
|
3511 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
|
3512 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
|
3513 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
|
3514 } |
0 | 3515 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3516 #endif // INCLUDE_CDS |
0 | 3517 |
3518 // Set flags based on ergonomics. | |
3519 set_ergonomics_flags(); | |
3520 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3521 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3522 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3523 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3524 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3525 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3526 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3527 |
1783 | 3528 if (TieredCompilation) { |
3529 set_tiered_flags(); | |
3530 } else { | |
3531 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3532 if (CompilationPolicyChoice >= 2) { | |
3533 vm_exit_during_initialization( | |
3534 "Incompatible compilation policy selected", NULL); | |
3535 } | |
3536 } | |
3537 | |
10990
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3538 set_heap_base_min_address(); |
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3539 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3540 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3541 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3542 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3543 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3544 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3545 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3546 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3547 } 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
|
3548 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3549 } else if (UseParNewGC) { // skipped if CMS is set above |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3550 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3551 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3552 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3553 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3554 check_deprecated_gcs(); |
8734 | 3555 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3556 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3557 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
|
3558 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
|
3559 " 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
|
3560 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3561 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3562 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3563 #else // INCLUDE_ALL_GCS |
0 | 3564 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3565 #endif // INCLUDE_ALL_GCS |
0 | 3566 |
3567 // Set bytecode rewriting flags | |
3568 set_bytecode_flags(); | |
3569 | |
3570 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3571 set_aggressive_opts_flags(); | |
3572 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3573 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3574 // which are subtlely different from each other but neither works with |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3575 // biased locking. |
2331 | 3576 if (UseHeavyMonitors |
3577 #ifdef COMPILER1 | |
3578 || !UseFastLocking | |
3579 #endif // COMPILER1 | |
3580 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3581 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3582 // 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
|
3583 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3584 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3585 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3586 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3587 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3588 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3589 |
0 | 3590 #ifdef CC_INTERP |
1131 | 3591 // Clear flags not supported by the C++ interpreter |
3592 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3593 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3594 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3595 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3596 #endif // CC_INTERP |
3597 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3598 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3599 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3600 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3601 } |
4777 | 3602 if (!EliminateLocks) { |
3603 EliminateNestedLocks = false; | |
3604 } | |
7473 | 3605 if (!Inline) { |
3606 IncrementalInline = false; | |
3607 } | |
3608 #ifndef PRODUCT | |
3609 if (!IncrementalInline) { | |
3610 AlwaysIncrementalInline = false; | |
3611 } | |
3612 #endif | |
3613 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3614 // incremental inlining: bump MaxNodeLimit | |
3615 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3616 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3617 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3618 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3619 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3620 warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3621 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3622 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3623 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3624 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3625 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3626 // Force NmethodSweeper to sweep whole CodeCache each time. |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
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diff
changeset
|
3627 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
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diff
changeset
|
3628 NmethodSweepFraction = 1; |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3629 } |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3630 } |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3631 #endif |
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diff
changeset
|
3632 |
0 | 3633 if (PrintCommandLineFlags) { |
4773 | 3634 CommandLineFlags::printSetFlags(tty); |
0 | 3635 } |
3636 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3637 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3638 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3639 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3640 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3641 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
3642 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3643 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3644 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3645 // set PauseAtExit if the gamma launcher was used and a debugger is attached |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
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diff
changeset
|
3646 // but only if not already set on the commandline |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
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diff
changeset
|
3647 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3648 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3649 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3650 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3651 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3652 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3653 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3654 |
0 | 3655 return JNI_OK; |
3656 } | |
3657 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3658 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3659 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3660 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3661 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3662 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3663 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3664 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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6982
diff
changeset
|
3665 // For those collectors or operating systems (eg, Windows) that do |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3666 // not support full UseNUMA, we will map to UseNUMAInterleaving for now |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3667 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3668 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3669 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3670 #endif // INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3671 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3672 } |
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7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
changeset
|
3673 |
0 | 3674 int Arguments::PropertyList_count(SystemProperty* pl) { |
3675 int count = 0; | |
3676 while(pl != NULL) { | |
3677 count++; | |
3678 pl = pl->next(); | |
3679 } | |
3680 return count; | |
3681 } | |
3682 | |
3683 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3684 assert(key != NULL, "just checking"); | |
3685 SystemProperty* prop; | |
3686 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3687 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3688 } | |
3689 return NULL; | |
3690 } | |
3691 | |
3692 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3693 int count = 0; | |
3694 const char* ret_val = NULL; | |
3695 | |
3696 while(pl != NULL) { | |
3697 if(count >= index) { | |
3698 ret_val = pl->key(); | |
3699 break; | |
3700 } | |
3701 count++; | |
3702 pl = pl->next(); | |
3703 } | |
3704 | |
3705 return ret_val; | |
3706 } | |
3707 | |
3708 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3709 int count = 0; | |
3710 char* ret_val = NULL; | |
3711 | |
3712 while(pl != NULL) { | |
3713 if(count >= index) { | |
3714 ret_val = pl->value(); | |
3715 break; | |
3716 } | |
3717 count++; | |
3718 pl = pl->next(); | |
3719 } | |
3720 | |
3721 return ret_val; | |
3722 } | |
3723 | |
3724 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3725 SystemProperty* p = *plist; | |
3726 if (p == NULL) { | |
3727 *plist = new_p; | |
3728 } else { | |
3729 while (p->next() != NULL) { | |
3730 p = p->next(); | |
3731 } | |
3732 p->set_next(new_p); | |
3733 } | |
3734 } | |
3735 | |
3736 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3737 if (plist == NULL) | |
3738 return; | |
3739 | |
3740 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3741 PropertyList_add(plist, new_p); | |
3742 } | |
3743 | |
3744 // This add maintains unique property key in the list. | |
691 | 3745 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3746 if (plist == NULL) |
3747 return; | |
3748 | |
3749 // If property key exist then update with new value. | |
3750 SystemProperty* prop; | |
3751 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3752 if (strcmp(k, prop->key()) == 0) { | |
691 | 3753 if (append) { |
3754 prop->append_value(v); | |
3755 } else { | |
3756 prop->set_value(v); | |
3757 } | |
0 | 3758 return; |
3759 } | |
3760 } | |
3761 | |
3762 PropertyList_add(plist, k, v); | |
3763 } | |
3764 | |
3765 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3766 // Returns true if all of the source pointed by src has been copied over to | |
3767 // the destination buffer pointed by buf. Otherwise, returns false. | |
3768 // Notes: | |
3769 // 1. If the length (buflen) of the destination buffer excluding the | |
3770 // NULL terminator character is not long enough for holding the expanded | |
3771 // pid characters, it also returns false instead of returning the partially | |
3772 // expanded one. | |
3773 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3774 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3775 char* buf, size_t buflen) { | |
3776 const char* p = src; | |
3777 char* b = buf; | |
3778 const char* src_end = &src[srclen]; | |
3779 char* buf_end = &buf[buflen - 1]; | |
3780 | |
3781 while (p < src_end && b < buf_end) { | |
3782 if (*p == '%') { | |
3783 switch (*(++p)) { | |
3784 case '%': // "%%" ==> "%" | |
3785 *b++ = *p++; | |
3786 break; | |
3787 case 'p': { // "%p" ==> current process id | |
3788 // buf_end points to the character before the last character so | |
3789 // that we could write '\0' to the end of the buffer. | |
3790 size_t buf_sz = buf_end - b + 1; | |
3791 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3792 | |
3793 // if jio_snprintf fails or the buffer is not long enough to hold | |
3794 // the expanded pid, returns false. | |
3795 if (ret < 0 || ret >= (int)buf_sz) { | |
3796 return false; | |
3797 } else { | |
3798 b += ret; | |
3799 assert(*b == '\0', "fail in copy_expand_pid"); | |
3800 if (p == src_end && b == buf_end + 1) { | |
3801 // reach the end of the buffer. | |
3802 return true; | |
3803 } | |
3804 } | |
3805 p++; | |
3806 break; | |
3807 } | |
3808 default : | |
3809 *b++ = '%'; | |
3810 } | |
3811 } else { | |
3812 *b++ = *p++; | |
3813 } | |
3814 } | |
3815 *b = '\0'; | |
3816 return (p == src_end); // return false if not all of the source was copied | |
3817 } |