Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 11963:1b6395189726
8012263: ciReplay: gracefully exit & report meaningful error when replay data parsing fails
Summary: find_method could return NULL so need explicitly check if there is error after parse_method, exit on error to avoid crash.
Reviewed-by: kvn, twisti
Contributed-by: yumin.qi@oracle.com
author | minqi |
---|---|
date | Fri, 19 Jul 2013 14:43:45 -0700 |
parents | 02d7aa1456c9 |
children | 6b0fd0964b87 313227279a05 79a5283f4595 |
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 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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267 #ifdef PRODUCT |
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268 { "DesiredMethodLimit", |
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269 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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270 #endif // PRODUCT |
242 | 271 { NULL, JDK_Version(0), JDK_Version(0) } |
272 }; | |
273 | |
274 // Returns true if the flag is obsolete and fits into the range specified | |
275 // for being ignored. In the case that the flag is ignored, the 'version' | |
276 // value is filled in with the version number when the flag became | |
277 // obsolete so that that value can be displayed to the user. | |
278 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 279 int i = 0; |
242 | 280 assert(version != NULL, "Must provide a version buffer"); |
281 while (obsolete_jvm_flags[i].name != NULL) { | |
282 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 283 // <flag>=xxx form |
284 // [-|+]<flag> form | |
242 | 285 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 286 ((s[0] == '+' || s[0] == '-') && |
242 | 287 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
288 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
289 *version = flag_status.obsoleted_in; | |
290 return true; | |
291 } | |
0 | 292 } |
293 i++; | |
294 } | |
295 return false; | |
296 } | |
297 | |
298 // Constructs the system class path (aka boot class path) from the following | |
299 // components, in order: | |
300 // | |
301 // prefix // from -Xbootclasspath/p:... | |
302 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
303 // base // from os::get_system_properties() or -Xbootclasspath= | |
304 // suffix // from -Xbootclasspath/a:... | |
305 // | |
306 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
307 // directories are added to the sysclasspath just before the base. | |
308 // | |
309 // This could be AllStatic, but it isn't needed after argument processing is | |
310 // complete. | |
311 class SysClassPath: public StackObj { | |
312 public: | |
313 SysClassPath(const char* base); | |
314 ~SysClassPath(); | |
315 | |
316 inline void set_base(const char* base); | |
317 inline void add_prefix(const char* prefix); | |
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318 inline void add_suffix_to_prefix(const char* suffix); |
0 | 319 inline void add_suffix(const char* suffix); |
320 inline void reset_path(const char* base); | |
321 | |
322 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
323 // property. Must be called after all command-line arguments have been | |
324 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
325 // combined_path(). | |
326 void expand_endorsed(); | |
327 | |
328 inline const char* get_base() const { return _items[_scp_base]; } | |
329 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
330 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
331 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
332 | |
333 // Combine all the components into a single c-heap-allocated string; caller | |
334 // must free the string if/when no longer needed. | |
335 char* combined_path(); | |
336 | |
337 private: | |
338 // Utility routines. | |
339 static char* add_to_path(const char* path, const char* str, bool prepend); | |
340 static char* add_jars_to_path(char* path, const char* directory); | |
341 | |
342 inline void reset_item_at(int index); | |
343 | |
344 // Array indices for the items that make up the sysclasspath. All except the | |
345 // base are allocated in the C heap and freed by this class. | |
346 enum { | |
347 _scp_prefix, // from -Xbootclasspath/p:... | |
348 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
349 _scp_base, // the default sysclasspath | |
350 _scp_suffix, // from -Xbootclasspath/a:... | |
351 _scp_nitems // the number of items, must be last. | |
352 }; | |
353 | |
354 const char* _items[_scp_nitems]; | |
355 DEBUG_ONLY(bool _expansion_done;) | |
356 }; | |
357 | |
358 SysClassPath::SysClassPath(const char* base) { | |
359 memset(_items, 0, sizeof(_items)); | |
360 _items[_scp_base] = base; | |
361 DEBUG_ONLY(_expansion_done = false;) | |
362 } | |
363 | |
364 SysClassPath::~SysClassPath() { | |
365 // Free everything except the base. | |
366 for (int i = 0; i < _scp_nitems; ++i) { | |
367 if (i != _scp_base) reset_item_at(i); | |
368 } | |
369 DEBUG_ONLY(_expansion_done = false;) | |
370 } | |
371 | |
372 inline void SysClassPath::set_base(const char* base) { | |
373 _items[_scp_base] = base; | |
374 } | |
375 | |
376 inline void SysClassPath::add_prefix(const char* prefix) { | |
377 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
378 } | |
379 | |
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380 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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381 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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382 } |
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383 |
0 | 384 inline void SysClassPath::add_suffix(const char* suffix) { |
385 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
386 } | |
387 | |
388 inline void SysClassPath::reset_item_at(int index) { | |
389 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
390 if (_items[index] != NULL) { | |
6197 | 391 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 392 _items[index] = NULL; |
393 } | |
394 } | |
395 | |
396 inline void SysClassPath::reset_path(const char* base) { | |
397 // Clear the prefix and suffix. | |
398 reset_item_at(_scp_prefix); | |
399 reset_item_at(_scp_suffix); | |
400 set_base(base); | |
401 } | |
402 | |
403 //------------------------------------------------------------------------------ | |
404 | |
405 void SysClassPath::expand_endorsed() { | |
406 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
407 | |
408 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
409 if (path == NULL) { | |
410 path = Arguments::get_endorsed_dir(); | |
411 assert(path != NULL, "no default for java.endorsed.dirs"); | |
412 } | |
413 | |
414 char* expanded_path = NULL; | |
415 const char separator = *os::path_separator(); | |
416 const char* const end = path + strlen(path); | |
417 while (path < end) { | |
418 const char* tmp_end = strchr(path, separator); | |
419 if (tmp_end == NULL) { | |
420 expanded_path = add_jars_to_path(expanded_path, path); | |
421 path = end; | |
422 } else { | |
6197 | 423 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 424 memcpy(dirpath, path, tmp_end - path); |
425 dirpath[tmp_end - path] = '\0'; | |
426 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 427 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 428 path = tmp_end + 1; |
429 } | |
430 } | |
431 _items[_scp_endorsed] = expanded_path; | |
432 DEBUG_ONLY(_expansion_done = true;) | |
433 } | |
434 | |
435 // Combine the bootclasspath elements, some of which may be null, into a single | |
436 // c-heap-allocated string. | |
437 char* SysClassPath::combined_path() { | |
438 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
439 assert(_expansion_done, "must call expand_endorsed() first."); | |
440 | |
441 size_t lengths[_scp_nitems]; | |
442 size_t total_len = 0; | |
443 | |
444 const char separator = *os::path_separator(); | |
445 | |
446 // Get the lengths. | |
447 int i; | |
448 for (i = 0; i < _scp_nitems; ++i) { | |
449 if (_items[i] != NULL) { | |
450 lengths[i] = strlen(_items[i]); | |
451 // Include space for the separator char (or a NULL for the last item). | |
452 total_len += lengths[i] + 1; | |
453 } | |
454 } | |
455 assert(total_len > 0, "empty sysclasspath not allowed"); | |
456 | |
457 // Copy the _items to a single string. | |
6197 | 458 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 459 char* cp_tmp = cp; |
460 for (i = 0; i < _scp_nitems; ++i) { | |
461 if (_items[i] != NULL) { | |
462 memcpy(cp_tmp, _items[i], lengths[i]); | |
463 cp_tmp += lengths[i]; | |
464 *cp_tmp++ = separator; | |
465 } | |
466 } | |
467 *--cp_tmp = '\0'; // Replace the extra separator. | |
468 return cp; | |
469 } | |
470 | |
471 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
472 char* | |
473 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
474 char *cp; | |
475 | |
476 assert(str != NULL, "just checking"); | |
477 if (path == NULL) { | |
478 size_t len = strlen(str) + 1; | |
6197 | 479 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 480 memcpy(cp, str, len); // copy the trailing null |
481 } else { | |
482 const char separator = *os::path_separator(); | |
483 size_t old_len = strlen(path); | |
484 size_t str_len = strlen(str); | |
485 size_t len = old_len + str_len + 2; | |
486 | |
487 if (prepend) { | |
6197 | 488 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 489 char* cp_tmp = cp; |
490 memcpy(cp_tmp, str, str_len); | |
491 cp_tmp += str_len; | |
492 *cp_tmp = separator; | |
493 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 494 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 495 } else { |
6197 | 496 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 497 char* cp_tmp = cp + old_len; |
498 *cp_tmp = separator; | |
499 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
500 } | |
501 } | |
502 return cp; | |
503 } | |
504 | |
505 // Scan the directory and append any jar or zip files found to path. | |
506 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
507 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
508 DIR* dir = os::opendir(directory); | |
509 if (dir == NULL) return path; | |
510 | |
511 char dir_sep[2] = { '\0', '\0' }; | |
512 size_t directory_len = strlen(directory); | |
513 const char fileSep = *os::file_separator(); | |
514 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
515 | |
516 /* Scan the directory for jars/zips, appending them to path. */ | |
517 struct dirent *entry; | |
6197 | 518 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 519 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
520 const char* name = entry->d_name; | |
521 const char* ext = name + strlen(name) - 4; | |
522 bool isJarOrZip = ext > name && | |
523 (os::file_name_strcmp(ext, ".jar") == 0 || | |
524 os::file_name_strcmp(ext, ".zip") == 0); | |
525 if (isJarOrZip) { | |
6197 | 526 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 527 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
528 path = add_to_path(path, jarpath, false); | |
6197 | 529 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 530 } |
531 } | |
6197 | 532 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 533 os::closedir(dir); |
534 return path; | |
535 } | |
536 | |
537 // Parses a memory size specification string. | |
489
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538 static bool atomull(const char *s, julong* result) { |
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539 julong n = 0; |
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540 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 541 if (args_read != 1) { |
542 return false; | |
543 } | |
544 while (*s != '\0' && isdigit(*s)) { | |
545 s++; | |
546 } | |
547 // 4705540: illegal if more characters are found after the first non-digit | |
548 if (strlen(s) > 1) { | |
549 return false; | |
550 } | |
551 switch (*s) { | |
552 case 'T': case 't': | |
553 *result = n * G * K; | |
489
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554 // Check for overflow. |
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555 if (*result/((julong)G * K) != n) return false; |
0 | 556 return true; |
557 case 'G': case 'g': | |
558 *result = n * G; | |
489
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559 if (*result/G != n) return false; |
0 | 560 return true; |
561 case 'M': case 'm': | |
562 *result = n * M; | |
489
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563 if (*result/M != n) return false; |
0 | 564 return true; |
565 case 'K': case 'k': | |
566 *result = n * K; | |
489
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567 if (*result/K != n) return false; |
0 | 568 return true; |
569 case '\0': | |
570 *result = n; | |
571 return true; | |
572 default: | |
573 return false; | |
574 } | |
575 } | |
576 | |
489
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577 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 578 if (size < min_size) return arg_too_small; |
579 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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580 if (size > max_uintx) return arg_too_big; |
0 | 581 return arg_in_range; |
582 } | |
583 | |
584 // Describe an argument out of range error | |
585 void Arguments::describe_range_error(ArgsRange errcode) { | |
586 switch(errcode) { | |
587 case arg_too_big: | |
588 jio_fprintf(defaultStream::error_stream(), | |
589 "The specified size exceeds the maximum " | |
590 "representable size.\n"); | |
591 break; | |
592 case arg_too_small: | |
593 case arg_unreadable: | |
594 case arg_in_range: | |
595 // do nothing for now | |
596 break; | |
597 default: | |
598 ShouldNotReachHere(); | |
599 } | |
600 } | |
601 | |
602 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
603 return CommandLineFlags::boolAtPut(name, &value, origin); | |
604 } | |
605 | |
606 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
607 double v; | |
608 if (sscanf(value, "%lf", &v) != 1) { | |
609 return false; | |
610 } | |
611 | |
612 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
613 return true; | |
614 } | |
615 return false; | |
616 } | |
617 | |
618 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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619 julong v; |
0 | 620 intx intx_v; |
621 bool is_neg = false; | |
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622 // Check the sign first since atomull() parses only unsigned values. |
0 | 623 if (*value == '-') { |
624 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
625 return false; | |
626 } | |
627 value++; | |
628 is_neg = true; | |
629 } | |
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630 if (!atomull(value, &v)) { |
0 | 631 return false; |
632 } | |
633 intx_v = (intx) v; | |
634 if (is_neg) { | |
635 intx_v = -intx_v; | |
636 } | |
637 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
638 return true; | |
639 } | |
640 uintx uintx_v = (uintx) v; | |
641 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
642 return true; | |
643 } | |
1064 | 644 uint64_t uint64_t_v = (uint64_t) v; |
645 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
646 return true; | |
647 } | |
0 | 648 return false; |
649 } | |
650 | |
651 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
652 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
653 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 654 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 655 return true; |
656 } | |
657 | |
658 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
659 const char* old_value = ""; | |
660 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
661 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
662 size_t new_len = strlen(new_value); | |
663 const char* value; | |
664 char* free_this_too = NULL; | |
665 if (old_len == 0) { | |
666 value = new_value; | |
667 } else if (new_len == 0) { | |
668 value = old_value; | |
669 } else { | |
6197 | 670 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 671 // each new setting adds another LINE to the switch: |
672 sprintf(buf, "%s\n%s", old_value, new_value); | |
673 value = buf; | |
674 free_this_too = buf; | |
675 } | |
676 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
677 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 678 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 679 if (free_this_too != NULL) { |
680 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 681 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 682 } |
683 return true; | |
684 } | |
685 | |
686 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
687 | |
688 // range of acceptable characters spelled out for portability reasons | |
689 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
690 #define BUFLEN 255 | |
691 char name[BUFLEN+1]; | |
692 char dummy; | |
693 | |
694 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
695 return set_bool_flag(name, false, origin); | |
696 } | |
697 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
698 return set_bool_flag(name, true, origin); | |
699 } | |
700 | |
701 char punct; | |
702 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
703 const char* value = strchr(arg, '=') + 1; | |
704 Flag* flag = Flag::find_flag(name, strlen(name)); | |
705 if (flag != NULL && flag->is_ccstr()) { | |
706 if (flag->ccstr_accumulates()) { | |
707 return append_to_string_flag(name, value, origin); | |
708 } else { | |
709 if (value[0] == '\0') { | |
710 value = NULL; | |
711 } | |
712 return set_string_flag(name, value, origin); | |
713 } | |
714 } | |
715 } | |
716 | |
717 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
718 const char* value = strchr(arg, '=') + 1; | |
719 // -XX:Foo:=xxx will reset the string flag to the given value. | |
720 if (value[0] == '\0') { | |
721 value = NULL; | |
722 } | |
723 return set_string_flag(name, value, origin); | |
724 } | |
725 | |
726 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
727 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
728 #define NUMBER_RANGE "[0123456789]" | |
729 char value[BUFLEN + 1]; | |
730 char value2[BUFLEN + 1]; | |
731 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
732 // Looks like a floating-point number -- try again with more lenient format string | |
733 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
734 return set_fp_numeric_flag(name, value, origin); | |
735 } | |
736 } | |
737 | |
738 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
739 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
740 return set_numeric_flag(name, value, origin); | |
741 } | |
742 | |
743 return false; | |
744 } | |
745 | |
746 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
747 assert(bldarray != NULL, "illegal argument"); | |
748 | |
749 if (arg == NULL) { | |
750 return; | |
751 } | |
752 | |
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753 int new_count = *count + 1; |
0 | 754 |
755 // expand the array and add arg to the last element | |
756 if (*bldarray == NULL) { | |
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757 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 758 } else { |
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759 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 760 } |
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761 (*bldarray)[*count] = strdup(arg); |
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762 *count = new_count; |
0 | 763 } |
764 | |
765 void Arguments::build_jvm_args(const char* arg) { | |
766 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
767 } | |
768 | |
769 void Arguments::build_jvm_flags(const char* arg) { | |
770 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
771 } | |
772 | |
773 // utility function to return a string that concatenates all | |
774 // strings in a given char** array | |
775 const char* Arguments::build_resource_string(char** args, int count) { | |
776 if (args == NULL || count == 0) { | |
777 return NULL; | |
778 } | |
779 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
780 for (int i = 1; i < count; i++) { | |
781 length += strlen(args[i]) + 1; // add 1 for a space | |
782 } | |
783 char* s = NEW_RESOURCE_ARRAY(char, length); | |
784 strcpy(s, args[0]); | |
785 for (int j = 1; j < count; j++) { | |
786 strcat(s, " "); | |
787 strcat(s, args[j]); | |
788 } | |
789 return (const char*) s; | |
790 } | |
791 | |
792 void Arguments::print_on(outputStream* st) { | |
793 st->print_cr("VM Arguments:"); | |
794 if (num_jvm_flags() > 0) { | |
795 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
796 } | |
797 if (num_jvm_args() > 0) { | |
798 st->print("jvm_args: "); print_jvm_args_on(st); | |
799 } | |
800 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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801 if (_java_class_path != NULL) { |
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802 char* path = _java_class_path->value(); |
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803 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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804 } |
0 | 805 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
806 } | |
807 | |
808 void Arguments::print_jvm_flags_on(outputStream* st) { | |
809 if (_num_jvm_flags > 0) { | |
810 for (int i=0; i < _num_jvm_flags; i++) { | |
811 st->print("%s ", _jvm_flags_array[i]); | |
812 } | |
813 st->print_cr(""); | |
814 } | |
815 } | |
816 | |
817 void Arguments::print_jvm_args_on(outputStream* st) { | |
818 if (_num_jvm_args > 0) { | |
819 for (int i=0; i < _num_jvm_args; i++) { | |
820 st->print("%s ", _jvm_args_array[i]); | |
821 } | |
822 st->print_cr(""); | |
823 } | |
824 } | |
825 | |
242 | 826 bool Arguments::process_argument(const char* arg, |
827 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
828 | |
829 JDK_Version since = JDK_Version(); | |
0 | 830 |
3250 | 831 if (parse_argument(arg, origin) || ignore_unrecognized) { |
832 return true; | |
0 | 833 } |
3250 | 834 |
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835 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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836 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 837 if (is_newly_obsolete(arg, &since)) { |
838 char version[256]; | |
839 since.to_string(version, sizeof(version)); | |
840 warning("ignoring option %s; support was removed in %s", argname, version); | |
841 return true; | |
842 } | |
843 | |
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844 // For locked flags, report a custom error message if available. |
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845 // Otherwise, report the standard unrecognized VM option. |
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846 |
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847 size_t arg_len; |
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848 const char* equal_sign = strchr(argname, '='); |
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849 if (equal_sign == NULL) { |
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850 arg_len = strlen(argname); |
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851 } else { |
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852 arg_len = equal_sign - argname; |
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853 } |
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854 |
11070 | 855 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true); |
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856 if (found_flag != NULL) { |
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857 char locked_message_buf[BUFLEN]; |
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858 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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859 if (strlen(locked_message_buf) == 0) { |
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860 if (found_flag->is_bool() && !has_plus_minus) { |
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861 jio_fprintf(defaultStream::error_stream(), |
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862 "Missing +/- setting for VM option '%s'\n", argname); |
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863 } else if (!found_flag->is_bool() && has_plus_minus) { |
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864 jio_fprintf(defaultStream::error_stream(), |
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865 "Unexpected +/- setting in VM option '%s'\n", argname); |
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866 } else { |
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867 jio_fprintf(defaultStream::error_stream(), |
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868 "Improperly specified VM option '%s'\n", argname); |
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869 } |
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870 } else { |
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871 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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872 } |
6017 | 873 } else { |
874 jio_fprintf(defaultStream::error_stream(), | |
875 "Unrecognized VM option '%s'\n", argname); | |
11070 | 876 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
877 if (fuzzy_matched != NULL) { | |
878 jio_fprintf(defaultStream::error_stream(), | |
879 "Did you mean '%s%s%s'?\n", | |
880 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
881 fuzzy_matched->name, | |
882 (fuzzy_matched->is_bool()) ? "" : "=<value>"); | |
883 } | |
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884 } |
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885 |
3250 | 886 // allow for commandline "commenting out" options like -XX:#+Verbose |
887 return arg[0] == '#'; | |
0 | 888 } |
889 | |
890 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
891 FILE* stream = fopen(file_name, "rb"); | |
892 if (stream == NULL) { | |
893 if (should_exist) { | |
894 jio_fprintf(defaultStream::error_stream(), | |
895 "Could not open settings file %s\n", file_name); | |
896 return false; | |
897 } else { | |
898 return true; | |
899 } | |
900 } | |
901 | |
902 char token[1024]; | |
903 int pos = 0; | |
904 | |
905 bool in_white_space = true; | |
906 bool in_comment = false; | |
907 bool in_quote = false; | |
908 char quote_c = 0; | |
909 bool result = true; | |
910 | |
911 int c = getc(stream); | |
6901 | 912 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 913 if (in_white_space) { |
914 if (in_comment) { | |
915 if (c == '\n') in_comment = false; | |
916 } else { | |
917 if (c == '#') in_comment = true; | |
918 else if (!isspace(c)) { | |
919 in_white_space = false; | |
920 token[pos++] = c; | |
921 } | |
922 } | |
923 } else { | |
924 if (c == '\n' || (!in_quote && isspace(c))) { | |
925 // token ends at newline, or at unquoted whitespace | |
926 // this allows a way to include spaces in string-valued options | |
927 token[pos] = '\0'; | |
928 logOption(token); | |
929 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
930 build_jvm_flags(token); | |
931 pos = 0; | |
932 in_white_space = true; | |
933 in_quote = false; | |
934 } else if (!in_quote && (c == '\'' || c == '"')) { | |
935 in_quote = true; | |
936 quote_c = c; | |
937 } else if (in_quote && (c == quote_c)) { | |
938 in_quote = false; | |
939 } else { | |
940 token[pos++] = c; | |
941 } | |
942 } | |
943 c = getc(stream); | |
944 } | |
945 if (pos > 0) { | |
946 token[pos] = '\0'; | |
947 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
948 build_jvm_flags(token); | |
949 } | |
950 fclose(stream); | |
951 return result; | |
952 } | |
953 | |
954 //============================================================================================================= | |
955 // Parsing of properties (-D) | |
956 | |
957 const char* Arguments::get_property(const char* key) { | |
958 return PropertyList_get_value(system_properties(), key); | |
959 } | |
960 | |
961 bool Arguments::add_property(const char* prop) { | |
962 const char* eq = strchr(prop, '='); | |
963 char* key; | |
964 // ns must be static--its address may be stored in a SystemProperty object. | |
965 const static char ns[1] = {0}; | |
966 char* value = (char *)ns; | |
967 | |
968 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 969 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 970 strncpy(key, prop, key_len); |
971 key[key_len] = '\0'; | |
972 | |
973 if (eq != NULL) { | |
974 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 975 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 976 strncpy(value, &prop[key_len + 1], value_len + 1); |
977 } | |
978 | |
979 if (strcmp(key, "java.compiler") == 0) { | |
980 process_java_compiler_argument(value); | |
981 FreeHeap(key); | |
982 if (eq != NULL) { | |
983 FreeHeap(value); | |
984 } | |
985 return true; | |
691 | 986 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 987 _java_command = value; |
988 | |
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989 // Record value in Arguments, but let it get passed to Java. |
691 | 990 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 991 // launcher.pid property is private and is processed |
992 // in process_sun_java_launcher_properties(); | |
993 // the sun.java.launcher property is passed on to the java application | |
994 FreeHeap(key); | |
995 if (eq != NULL) { | |
996 FreeHeap(value); | |
997 } | |
998 return true; | |
691 | 999 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 1000 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1001 // its value without going through the property list or making a Java call. | |
1002 _java_vendor_url_bug = value; | |
691 | 1003 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1004 PropertyList_unique_add(&_system_properties, key, value, true); | |
1005 return true; | |
0 | 1006 } |
1007 // Create new property and add at the end of the list | |
1008 PropertyList_unique_add(&_system_properties, key, value); | |
1009 return true; | |
1010 } | |
1011 | |
1012 //=========================================================================================================== | |
1013 // Setting int/mixed/comp mode flags | |
1014 | |
1015 void Arguments::set_mode_flags(Mode mode) { | |
1016 // Set up default values for all flags. | |
1017 // If you add a flag to any of the branches below, | |
1018 // add a default value for it here. | |
1019 set_java_compiler(false); | |
1020 _mode = mode; | |
1021 | |
1022 // Ensure Agent_OnLoad has the correct initial values. | |
1023 // This may not be the final mode; mode may change later in onload phase. | |
1024 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1025 (char*)VM_Version::vm_info_string(), false); |
0 | 1026 |
1027 UseInterpreter = true; | |
1028 UseCompiler = true; | |
1029 UseLoopCounter = true; | |
1030 | |
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1031 #ifndef ZERO |
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1032 // Turn these off for mixed and comp. Leave them on for Zero. |
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1033 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1034 UseFastAccessorMethods = (mode == _int); |
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1035 } |
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1036 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1037 UseFastEmptyMethods = (mode == _int); |
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1038 } |
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1039 #endif |
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1040 |
0 | 1041 // Default values may be platform/compiler dependent - |
1042 // use the saved values | |
1043 ClipInlining = Arguments::_ClipInlining; | |
1044 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1045 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1046 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1047 | |
1048 // Change from defaults based on mode | |
1049 switch (mode) { | |
1050 default: | |
1051 ShouldNotReachHere(); | |
1052 break; | |
1053 case _int: | |
1054 UseCompiler = false; | |
1055 UseLoopCounter = false; | |
1056 AlwaysCompileLoopMethods = false; | |
1057 UseOnStackReplacement = false; | |
1058 break; | |
1059 case _mixed: | |
1060 // same as default | |
1061 break; | |
1062 case _comp: | |
1063 UseInterpreter = false; | |
1064 BackgroundCompilation = false; | |
1065 ClipInlining = false; | |
4758
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1066 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1067 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1068 // compile a level 4 (C2) and then continue executing it. |
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1069 if (TieredCompilation) { |
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1070 Tier3InvokeNotifyFreqLog = 0; |
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1071 Tier4InvocationThreshold = 0; |
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1072 } |
0 | 1073 break; |
1074 } | |
1075 } | |
1076 | |
1077 // Conflict: required to use shared spaces (-Xshare:on), but | |
1078 // incompatible command line options were chosen. | |
1079 | |
1080 static void no_shared_spaces() { | |
1081 if (RequireSharedSpaces) { | |
1082 jio_fprintf(defaultStream::error_stream(), | |
1083 "Class data sharing is inconsistent with other specified options.\n"); | |
1084 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1085 } else { | |
1086 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1087 } | |
1088 } | |
1089 | |
1783 | 1090 void Arguments::set_tiered_flags() { |
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1091 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1092 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1093 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1094 } |
1095 if (CompilationPolicyChoice < 2) { | |
1096 vm_exit_during_initialization( | |
1097 "Incompatible compilation policy selected", NULL); | |
1098 } | |
1891
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1099 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1100 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
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1101 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1102 } |
10278 | 1103 if (!UseInterpreter) { // -Xcomp |
1104 Tier3InvokeNotifyFreqLog = 0; | |
1105 Tier4InvocationThreshold = 0; | |
1106 } | |
1783 | 1107 } |
1108 | |
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1109 #if INCLUDE_ALL_GCS |
4838 | 1110 static void disable_adaptive_size_policy(const char* collector_name) { |
1111 if (UseAdaptiveSizePolicy) { | |
1112 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1113 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1114 collector_name); | |
1115 } | |
1116 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1117 } | |
1118 } | |
1119 | |
0 | 1120 void Arguments::set_parnew_gc_flags() { |
1064 | 1121 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1122 "control point invariant"); |
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1123 assert(UseParNewGC, "Error"); |
0 | 1124 |
4838 | 1125 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1126 disable_adaptive_size_policy("UseParNewGC"); | |
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1127 |
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1128 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1129 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1130 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1131 } else if (ParallelGCThreads == 0) { |
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1132 jio_fprintf(defaultStream::error_stream(), |
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1133 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1134 vm_exit(1); |
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1135 } |
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1136 |
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1137 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1138 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1139 // we set them to 1024 and 1024. |
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1140 // See CR 6362902. |
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1141 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1142 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1143 } |
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1144 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1145 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1146 } |
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1147 |
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1148 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1149 // See CR 6362902. |
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1150 if (AlwaysTenure) { |
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1151 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1152 } |
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1153 // When using compressed oops, we use local overflow stacks, |
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1154 // rather than using a global overflow list chained through |
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1155 // the klass word of the object's pre-image. |
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1156 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1157 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1158 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1159 } |
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1160 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1161 } |
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1162 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1163 } |
1164 | |
1165 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1166 // sparc/solaris for certain applications, but would gain from | |
1167 // further optimization and tuning efforts, and would almost | |
1168 // certainly gain from analysis of platform and environment. | |
1169 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1170 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1171 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1172 |
0 | 1173 // If we are using CMS, we prefer to UseParNewGC, |
1174 // unless explicitly forbidden. | |
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1175 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1176 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1177 } |
1178 | |
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1179 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1180 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1181 |
1182 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1183 // as needed. | |
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1184 if (UseParNewGC) { |
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1185 set_parnew_gc_flags(); |
0 | 1186 } |
1187 | |
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1188 size_t max_heap = align_size_down(MaxHeapSize, |
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1189 CardTableRS::ct_max_alignment_constraint()); |
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1190 |
0 | 1191 // Now make adjustments for CMS |
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1192 intx tenuring_default = (intx)6; |
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1193 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1194 |
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1195 // Preferred young gen size for "short" pauses: |
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1196 // upper bound depends on # of threads and NewRatio. |
0 | 1197 const uintx parallel_gc_threads = |
1198 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1199 const size_t preferred_max_new_size_unaligned = | |
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1200 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1201 size_t preferred_max_new_size = |
0 | 1202 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1203 | |
1204 // Unless explicitly requested otherwise, size young gen | |
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1205 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
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1206 |
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1207 // If either MaxNewSize or NewRatio is set on the command line, |
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1208 // assume the user is trying to set the size of the young gen. |
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1209 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1210 |
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1211 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1212 // NewSize was set on the command line and it is larger than |
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1213 // preferred_max_new_size. |
0 | 1214 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1215 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1216 } else { |
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1217 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1218 } |
1064 | 1219 if (PrintGCDetails && Verbose) { |
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1220 // Too early to use gclog_or_tty |
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1221 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1222 } |
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1223 |
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1224 // Code along this path potentially sets NewSize and OldSize |
1064 | 1225 if (PrintGCDetails && Verbose) { |
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1226 // Too early to use gclog_or_tty |
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1227 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1228 " initial_heap_size: " SIZE_FORMAT |
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1229 " max_heap: " SIZE_FORMAT, |
1064 | 1230 min_heap_size(), InitialHeapSize, max_heap); |
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1231 } |
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1232 size_t min_new = preferred_max_new_size; |
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1233 if (FLAG_IS_CMDLINE(NewSize)) { |
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1234 min_new = NewSize; |
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1235 } |
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1236 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1237 // Unless explicitly requested otherwise, make young gen |
1238 // at least min_new, and at most preferred_max_new_size. | |
1239 if (FLAG_IS_DEFAULT(NewSize)) { | |
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1240 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1241 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1242 if (PrintGCDetails && Verbose) { |
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1243 // Too early to use gclog_or_tty |
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1244 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1245 } |
0 | 1246 } |
1247 // Unless explicitly requested otherwise, size old gen | |
2368
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1248 // so it's NewRatio x of NewSize. |
0 | 1249 if (FLAG_IS_DEFAULT(OldSize)) { |
1250 if (max_heap > NewSize) { | |
2368
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1251 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1252 if (PrintGCDetails && Verbose) { |
13
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1253 // Too early to use gclog_or_tty |
2368
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1254 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1255 } |
0 | 1256 } |
1257 } | |
1258 } | |
1259 } | |
1260 // Unless explicitly requested otherwise, definitely | |
1261 // promote all objects surviving "tenuring_default" scavenges. | |
1262 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1263 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1264 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1265 } |
1266 // If we decided above (or user explicitly requested) | |
1267 // `promote all' (via MaxTenuringThreshold := 0), | |
1268 // prefer minuscule survivor spaces so as not to waste | |
1269 // space for (non-existent) survivors | |
1270 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1271 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1272 } |
1273 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1274 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1275 // This is done in order to make ParNew+CMS configuration to work | |
1276 // with YoungPLABSize and OldPLABSize options. | |
1277 // See CR 6362902. | |
1278 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1279 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1280 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1281 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1282 // the value (either from the command line or ergonomics) of |
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1283 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1284 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
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1285 } else { |
0 | 1286 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1287 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1288 // we'll let it to take precedence. | |
1289 jio_fprintf(defaultStream::error_stream(), | |
886
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1290 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1291 " options are specified for the CMS collector." |
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1292 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1293 } |
1294 } | |
1145
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1295 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1296 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1297 // unless it was manually specified. This is because a too-low value |
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1298 // will slow down scavenges. |
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1299 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1300 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1301 } |
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1302 } |
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1303 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1304 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1305 // If either of the static initialization defaults have changed, note this |
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1306 // modification. |
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1307 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1308 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1309 } |
1284 | 1310 if (PrintGCDetails && Verbose) { |
1311 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1312 MarkStackSize / K, MarkStackSizeMax / K); | |
1313 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1314 } | |
0 | 1315 } |
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1316 #endif // INCLUDE_ALL_GCS |
0 | 1317 |
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1318 void set_object_alignment() { |
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1319 // Object alignment. |
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1320 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1321 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1322 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1323 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1324 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1325 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1326 |
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1327 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1328 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1329 |
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1330 // Oop encoding heap max |
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1331 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1332 |
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1333 #if INCLUDE_ALL_GCS |
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1334 // Set CMS global values |
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1335 CompactibleFreeListSpace::set_cms_values(); |
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1336 #endif // INCLUDE_ALL_GCS |
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1337 } |
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1338 |
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1339 bool verify_object_alignment() { |
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1340 // Object alignment. |
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1341 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1342 jio_fprintf(defaultStream::error_stream(), |
1829
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1343 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1344 (int)ObjectAlignmentInBytes); |
1571
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1345 return false; |
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1346 } |
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1347 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1348 jio_fprintf(defaultStream::error_stream(), |
1829
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1349 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1350 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1351 return false; |
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1352 } |
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1353 // It does not make sense to have big object alignment |
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1354 // since a space lost due to alignment will be greater |
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1355 // then a saved space from compressed oops. |
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1356 if ((int)ObjectAlignmentInBytes > 256) { |
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1357 jio_fprintf(defaultStream::error_stream(), |
7461
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1358 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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1359 (int)ObjectAlignmentInBytes); |
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1360 return false; |
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1361 } |
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1362 // In case page size is very small. |
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1363 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1364 jio_fprintf(defaultStream::error_stream(), |
7461
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1365 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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1366 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1367 return false; |
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1368 } |
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1369 return true; |
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1370 } |
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1371 |
135
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1372 inline uintx max_heap_for_compressed_oops() { |
1963 | 1373 // Avoid sign flip. |
6725
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1374 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
1963 | 1375 return 0; |
1376 } | |
6725
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1377 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
1064 | 1378 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1379 } |
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1380 |
0 | 1381 bool Arguments::should_auto_select_low_pause_collector() { |
1382 if (UseAutoGCSelectPolicy && | |
1383 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1384 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1385 if (PrintGCDetails) { | |
1386 // Cannot use gclog_or_tty yet. | |
1387 tty->print_cr("Automatic selection of the low pause collector" | |
1388 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1389 } | |
1390 return true; | |
1391 } | |
1392 return false; | |
1393 } | |
1394 | |
8741
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1395 void Arguments::set_use_compressed_oops() { |
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1396 #ifndef ZERO |
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1397 #ifdef _LP64 |
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1398 // MaxHeapSize is not set up properly at this point, but |
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1399 // the only value that can override MaxHeapSize if we are |
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1400 // to use UseCompressedOops is InitialHeapSize. |
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1401 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1402 |
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1403 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1404 #if !defined(COMPILER1) || defined(TIERED) |
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1405 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1406 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1407 } |
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1408 #endif |
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1409 #ifdef _WIN64 |
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1410 if (UseLargePages && UseCompressedOops) { |
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1411 // Cannot allocate guard pages for implicit checks in indexed addressing |
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|
1412 // mode, when large pages are specified on windows. |
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1413 // This flag could be switched ON if narrow oop base address is set to 0, |
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1414 // see code in Universe::initialize_heap(). |
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|
1415 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1416 } |
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1417 #endif // _WIN64 |
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1418 } else { |
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1419 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1420 warning("Max heap size too large for Compressed Oops"); |
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1421 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1422 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1423 } |
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1424 } |
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1425 #endif // _LP64 |
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1426 #endif // ZERO |
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1427 } |
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1428 |
0 | 1429 void Arguments::set_ergonomics_flags() { |
1430 | |
4946 | 1431 if (os::is_server_class_machine()) { |
0 | 1432 // If no other collector is requested explicitly, |
1433 // let the VM select the collector based on | |
1434 // machine class and automatic selection policy. | |
1435 if (!UseSerialGC && | |
1436 !UseConcMarkSweepGC && | |
342
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1437 !UseG1GC && |
0 | 1438 !UseParNewGC && |
1439 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1440 if (should_auto_select_low_pause_collector()) { | |
1441 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1442 } else { | |
1443 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1444 } | |
6725
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1445 } |
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1446 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1447 // to be disabled, which hurts interpreter performance and decreases |
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1448 // server performance. On server class machines, keep the default |
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1449 // off unless it is asked for. Future work: either add bytecode rewriting |
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1450 // at link time, or rewrite bytecodes in non-shared methods. |
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1451 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
0 | 1452 no_shared_spaces(); |
1453 } | |
1454 } | |
113
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1455 |
1010 | 1456 #ifndef ZERO |
113
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1457 #ifdef _LP64 |
8741
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1458 set_use_compressed_oops(); |
6725
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1459 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1460 if (!UseCompressedOops) { |
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1461 if (UseCompressedKlassPointers) { |
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1462 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1463 } |
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1464 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1465 } else { |
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1466 // Turn on UseCompressedKlassPointers too |
6848
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1467 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1468 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1469 } |
6736
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1470 // Set the ClassMetaspaceSize to something that will not need to be |
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1471 // expanded, since it cannot be expanded. |
7982
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1472 if (UseCompressedKlassPointers) { |
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1473 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
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|
1474 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
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1475 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1476 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
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1477 // 100,000 classes seems like a good size, so 100M assumes around 1K |
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1478 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
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1479 // size per klass. Eventually, this will be parameterized because it |
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1480 // would also be useful to determine the optimal size of the |
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1481 // systemDictionary. |
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|
1482 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
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1483 } |
6736
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1484 } |
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1485 } |
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1486 // Also checks that certain machines are slower with compressed oops |
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1487 // in vm_version initialization code. |
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1488 #endif // _LP64 |
1010 | 1489 #endif // !ZERO |
0 | 1490 } |
1491 | |
1492 void Arguments::set_parallel_gc_flags() { | |
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1493 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1494 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1495 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1496 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1497 } |
4879 | 1498 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1499 |
1500 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1501 // of the physical memory, up to a maximum of 1GB. | |
7471
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1502 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
1503 Abstract_VM_Version::parallel_worker_threads()); |
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1504 if (ParallelGCThreads == 0) { |
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|
1505 jio_fprintf(defaultStream::error_stream(), |
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1506 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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|
1507 vm_exit(1); |
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1508 } |
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|
1509 |
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1510 |
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1511 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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|
1512 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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|
1513 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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1514 // See CR 6362902 for details. |
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|
1515 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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1516 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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|
1517 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1518 } |
7471
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1519 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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|
1520 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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1521 } |
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|
1522 } |
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1523 |
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1524 if (UseParallelOldGC) { |
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1525 // Par compact uses lower default values since they are treated as |
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1526 // minimums. These are different defaults because of the different |
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1527 // interpretation and are not ergonomically set. |
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1528 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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1529 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1530 } |
1531 } | |
1532 } | |
1533 | |
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1534 void Arguments::set_g1_gc_flags() { |
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1535 assert(UseG1GC, "Error"); |
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1536 #ifdef COMPILER1 |
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1537 FastTLABRefill = false; |
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1538 #endif |
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1539 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1540 Abstract_VM_Version::parallel_worker_threads()); |
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1541 if (ParallelGCThreads == 0) { |
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1542 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1543 Abstract_VM_Version::parallel_worker_threads()); |
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1544 } |
751 | 1545 |
7397
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1546 // MarkStackSize will be set (if it hasn't been set by the user) |
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1547 // when concurrent marking is initialized. |
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|
1548 // Its value will be based upon the number of parallel marking threads. |
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1549 // But we do set the maximum mark stack size here. |
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1550 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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|
1551 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1552 } |
1356 | 1553 |
1554 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1555 // In G1, we want the default GC overhead goal to be higher than | |
1556 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1557 // be expanded more aggressively than we would like it to. In | |
1558 // fact, even 10% seems to not be high enough in some cases | |
1559 // (especially small GC stress tests that the main thing they do | |
1560 // is allocation). We might consider increase it further. | |
1561 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1562 } | |
7397
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|
1563 |
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|
1564 if (PrintGCDetails && Verbose) { |
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|
1565 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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|
1566 MarkStackSize / K, MarkStackSizeMax / K); |
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|
1567 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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|
1568 } |
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|
1569 } |
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|
1570 |
8854
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1571 julong Arguments::limit_by_allocatable_memory(julong limit) { |
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1572 julong max_allocatable; |
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|
1573 julong result = limit; |
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|
1574 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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|
1575 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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|
1576 } |
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|
1577 return result; |
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|
1578 } |
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|
1579 |
10990
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|
1580 void Arguments::set_heap_base_min_address() { |
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|
1581 if (FLAG_IS_DEFAULT(HeapBaseMinAddress) && UseG1GC && HeapBaseMinAddress < 1*G) { |
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1582 // By default HeapBaseMinAddress is 2G on all platforms except Solaris x86. |
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1583 // G1 currently needs a lot of C-heap, so on Solaris we have to give G1 |
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|
1584 // some extra space for the C-heap compared to other collectors. |
11066
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|
1585 // Use FLAG_SET_DEFAULT here rather than FLAG_SET_ERGO to make sure that |
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|
1586 // code that checks for default values work correctly. |
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|
1587 FLAG_SET_DEFAULT(HeapBaseMinAddress, 1*G); |
10990
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|
1588 } |
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|
1589 } |
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|
1590 |
1064 | 1591 void Arguments::set_heap_size() { |
1592 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1593 // Deprecated flag | |
1594 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1595 } | |
1596 | |
1597 const julong phys_mem = | |
1598 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1599 : (julong)MaxRAM; | |
1600 | |
1601 // If the maximum heap size has not been set with -Xmx, | |
1602 // then set it as fraction of the size of physical memory, | |
1603 // respecting the maximum and minimum sizes of the heap. | |
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1604 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1605 julong reasonable_max = phys_mem / MaxRAMFraction; |
1606 | |
1607 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1608 // Small physical memory, so use a minimum fraction of it for the heap | |
1609 reasonable_max = phys_mem / MinRAMFraction; | |
1610 } else { | |
1611 // Not-small physical memory, so require a heap at least | |
1612 // as large as MaxHeapSize | |
1613 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1614 } | |
1615 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1616 // Limit the heap size to ErgoHeapSizeLimit | |
1617 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
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|
1618 } |
1064 | 1619 if (UseCompressedOops) { |
1620 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1621 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1622 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1623 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1624 // but it should be not less than default MaxHeapSize. | |
1625 max_coop_heap -= HeapBaseMinAddress; | |
1626 } | |
1627 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1628 } |
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|
1629 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1630 |
1631 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1632 // An initial heap size was specified on the command line, | |
1633 // so be sure that the maximum size is consistent. Done | |
8854
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|
1634 // after call to limit_by_allocatable_memory because that |
1064 | 1635 // method might reduce the allocation size. |
1636 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1637 } | |
1638 | |
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|
1639 if (PrintGCDetails && Verbose) { |
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|
1640 // Cannot use gclog_or_tty yet. |
1064 | 1641 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1642 } |
1064 | 1643 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1644 } | |
1645 | |
10241
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|
1646 // If the minimum or initial heap_size have not been set or requested to be set |
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|
1647 // ergonomically, set them accordingly. |
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|
1648 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
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6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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|
1649 julong reasonable_minimum = (julong)(OldSize + NewSize); |
84cb6f20afb3
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|
1650 |
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|
1651 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1652 |
8854
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|
1653 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
84cb6f20afb3
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|
1654 |
10241
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|
1655 if (InitialHeapSize == 0) { |
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|
1656 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1657 |
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|
1658 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1659 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1660 |
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|
1661 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
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|
1662 |
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|
1663 if (PrintGCDetails && Verbose) { |
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|
1664 // Cannot use gclog_or_tty yet. |
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|
1665 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
d17700c82d7d
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|
1666 } |
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|
1667 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
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|
1668 } |
10241
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|
1669 // If the minimum heap size has not been set (via -Xms), |
d17700c82d7d
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|
1670 // synchronize with InitialHeapSize to avoid errors with the default value. |
d17700c82d7d
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diff
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|
1671 if (min_heap_size() == 0) { |
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|
1672 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
d17700c82d7d
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|
1673 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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|
1674 // Cannot use gclog_or_tty yet. |
d17700c82d7d
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|
1675 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
d17700c82d7d
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diff
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|
1676 } |
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diff
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|
1677 } |
342
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diff
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|
1678 } |
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|
1679 } |
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|
1680 |
0 | 1681 // This must be called after ergonomics because we want bytecode rewriting |
1682 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1683 void Arguments::set_bytecode_flags() { | |
1684 // Better not attempt to store into a read-only space. | |
1685 if (UseSharedSpaces) { | |
1686 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1687 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1688 } | |
1689 | |
1690 if (!RewriteBytecodes) { | |
1691 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1692 } | |
1693 } | |
1694 | |
1695 // Aggressive optimization flags -XX:+AggressiveOpts | |
1696 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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0
diff
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|
1697 #ifdef COMPILER2 |
10278 | 1698 if (AggressiveUnboxing) { |
1699 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1700 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1701 } else if (!EliminateAutoBox) { | |
1702 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1703 AggressiveUnboxing = false; | |
1704 } | |
1705 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1706 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1707 } else if (!DoEscapeAnalysis) { | |
1708 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1709 AggressiveUnboxing = false; | |
1710 } | |
1711 } | |
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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|
1712 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1713 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1714 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1715 } |
ff5961f4c095
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0
diff
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|
1716 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
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|
1717 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1718 } |
ff5961f4c095
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0
diff
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|
1719 |
ff5961f4c095
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parents:
0
diff
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|
1720 // 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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|
1721 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1722 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
17
ff5961f4c095
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0
diff
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|
1723 add_property(buffer); |
ff5961f4c095
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0
diff
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|
1724 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
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|
1725 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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|
1726 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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363
diff
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|
1727 } |
17
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diff
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|
1728 #endif |
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0
diff
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|
1729 |
0 | 1730 if (AggressiveOpts) { |
61 | 1731 // Sample flag setting code |
1732 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1733 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1734 // } | |
0 | 1735 } |
1736 } | |
1737 | |
1738 //=========================================================================================================== | |
1739 // Parsing of java.compiler property | |
1740 | |
1741 void Arguments::process_java_compiler_argument(char* arg) { | |
1742 // For backwards compatibility, Djava.compiler=NONE or "" | |
1743 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1744 // is also specified. | |
1745 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1746 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1747 } | |
1748 } | |
1749 | |
1750 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1751 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
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2243
diff
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|
1752 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1753 _created_by_gamma_launcher = true; |
da091bb67459
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2243
diff
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|
1754 } |
0 | 1755 } |
1756 | |
1757 bool Arguments::created_by_java_launcher() { | |
1758 assert(_sun_java_launcher != NULL, "property must have value"); | |
1759 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1760 } | |
1761 | |
2302
da091bb67459
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2243
diff
changeset
|
1762 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
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parents:
2243
diff
changeset
|
1763 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1764 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1765 |
0 | 1766 //=========================================================================================================== |
1767 // Parsing of main arguments | |
1768 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1769 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
|
1770 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1771 // 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
|
1772 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1773 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1774 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1775 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1776 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1777 "%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
|
1778 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1779 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1780 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1781 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1782 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1783 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1784 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1785 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1786 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1787 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1788 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1789 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1790 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1791 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1792 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1793 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1794 |
0 | 1795 bool Arguments::verify_percentage(uintx value, const char* name) { |
1796 if (value <= 100) { | |
1797 return true; | |
1798 } | |
1799 jio_fprintf(defaultStream::error_stream(), | |
1800 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1801 name, value); | |
1802 return false; | |
1803 } | |
1804 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1805 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1806 #ifdef ASSERT |
0 | 1807 static bool verify_serial_gc_flags() { |
1808 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1809 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1810 UseParallelGC || UseParallelOldGC)); |
0 | 1811 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1812 #endif // ASSERT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1813 #endif // INCLUDE_ALL_GCS |
0 | 1814 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1815 // check if do gclog rotation |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1816 // +UseGCLogFileRotation is a must, |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1817 // 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
|
1818 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1819 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1820 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1821 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1822 (NumberOfGCLogFiles == 0) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1823 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1824 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
|
1825 "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
|
1826 "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
|
1827 "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
|
1828 UseGCLogFileRotation = false; |
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 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1832 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1833 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
|
1834 jio_fprintf(defaultStream::output_stream(), |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1835 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1838 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1839 // Check consistency of GC selection |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1840 bool Arguments::check_gc_consistency() { |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1841 check_gclog_consistency(); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1842 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1843 // 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
|
1844 // 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
|
1845 // 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
|
1846 // 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
|
1847 // 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
|
1848 // 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
|
1849 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1850 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1851 if (UseSerialGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1852 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1853 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1854 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1855 if (i > 1) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1856 jio_fprintf(defaultStream::error_stream(), |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1857 "Conflicting collector combinations in option list; " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1858 "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
|
1859 "allowed\n"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1860 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1861 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1862 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1863 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1864 "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
|
1865 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
1866 status = false; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1867 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1868 return status; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1869 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1870 |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1871 void Arguments::check_deprecated_gcs() { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1872 if (UseConcMarkSweepGC && !UseParNewGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1873 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
|
1874 "and will likely be removed in a future release"); |
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 |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1877 if (UseParNewGC && !UseConcMarkSweepGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1878 // !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
|
1879 // 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
|
1880 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
|
1881 "and will likely be removed in a future release"); |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1882 } |
7453 | 1883 |
1884 if (CMSIncrementalMode) { | |
1885 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1886 } | |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1887 } |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
1888 |
8734 | 1889 void Arguments::check_deprecated_gc_flags() { |
1890 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1891 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1892 "and will likely be removed in future release"); | |
1893 } | |
1894 } | |
1895 | |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1896 // Check stack pages settings |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1897 bool Arguments::check_stack_pages() |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1898 { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1899 bool status = true; |
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(StackYellowPages, 1, "StackYellowPages"); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1901 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1902 // 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
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|
1903 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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1904 return status; |
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1905 } |
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1906 |
0 | 1907 // Check the consistency of vm_init_args |
1908 bool Arguments::check_vm_args_consistency() { | |
1909 // Method for adding checks for flag consistency. | |
1910 // The intent is to warn the user of all possible conflicts, | |
1911 // before returning an error. | |
1912 // Note: Needs platform-dependent factoring. | |
1913 bool status = true; | |
1914 | |
1915 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1916 // builds so the cost of stack banging can be measured. | |
1917 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1918 if (!UseBoundThreads && !UseStackBanging) { | |
1919 jio_fprintf(defaultStream::error_stream(), | |
1920 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1921 | |
1922 status = false; | |
1923 } | |
1924 #endif | |
1925 | |
1926 if (TLABRefillWasteFraction == 0) { | |
1927 jio_fprintf(defaultStream::error_stream(), | |
1928 "TLABRefillWasteFraction should be a denominator, " | |
1929 "not " SIZE_FORMAT "\n", | |
1930 TLABRefillWasteFraction); | |
1931 status = false; | |
1932 } | |
1933 | |
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1934 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 1935 "AdaptiveSizePolicyWeight"); |
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1936 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1937 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1938 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1939 |
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1940 // Divide by bucket size to prevent a large size from causing rollover when |
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1941 // calculating amount of memory needed to be allocated for the String table. |
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1942 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
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1943 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1944 |
0 | 1945 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1946 jio_fprintf(defaultStream::error_stream(), | |
1947 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1948 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1949 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1950 status = false; | |
1951 } | |
1952 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1953 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1954 | |
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1955 // Min/MaxMetaspaceFreeRatio |
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1956 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1957 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1958 |
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1959 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1960 jio_fprintf(defaultStream::error_stream(), |
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1961 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1962 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1963 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1964 MinMetaspaceFreeRatio, |
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1965 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1966 MaxMetaspaceFreeRatio); |
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1967 status = false; |
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1968 } |
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1969 |
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1970 // Trying to keep 100% free is not practical |
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1971 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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1972 |
0 | 1973 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
1974 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1975 } | |
1976 | |
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1977 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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1978 // Settings to encourage splitting. |
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1979 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 1980 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
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1981 } |
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|
1982 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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1983 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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|
1984 } |
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|
1985 } |
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|
1986 |
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1987 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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|
1988 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1989 if (GCTimeLimit == 100) { |
1990 // Turn off gc-overhead-limit-exceeded checks | |
1991 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
1992 } | |
1993 | |
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1994 status = status && check_gc_consistency(); |
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1995 status = status && check_stack_pages(); |
0 | 1996 |
1997 if (CMSIncrementalMode) { | |
1998 if (!UseConcMarkSweepGC) { | |
1999 jio_fprintf(defaultStream::error_stream(), | |
2000 "error: invalid argument combination.\n" | |
2001 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2002 "selected in order\nto use CMSIncrementalMode.\n"); | |
2003 status = false; | |
2004 } else { | |
10
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|
2005 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2006 "CMSIncrementalDutyCycle"); |
10
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|
2007 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2008 "CMSIncrementalDutyCycleMin"); |
10
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|
2009 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2010 "CMSIncrementalSafetyFactor"); |
10
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|
2011 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2012 "CMSIncrementalOffset"); |
10
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|
2013 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2014 "CMSExpAvgFactor"); |
2015 // If it was not set on the command line, set | |
2016 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2017 if (CMSInitiatingOccupancyFraction < 0) { | |
2018 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2019 } | |
2020 } | |
2021 } | |
2022 | |
2023 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2024 // insists that we hold the requisite locks so that the iteration is | |
2025 // MT-safe. For the verification at start-up and shut-down, we don't | |
2026 // yet have a good way of acquiring and releasing these locks, | |
2027 // which are not visible at the CollectedHeap level. We want to | |
2028 // be able to acquire these locks and then do the iteration rather | |
2029 // than just disable the lock verification. This will be fixed under | |
2030 // bug 4788986. | |
2031 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
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|
2032 if (VerifyDuringStartup) { |
0 | 2033 warning("Heap verification at start-up disabled " |
2034 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
9071
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|
2035 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2036 } |
9071
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|
2037 |
0 | 2038 if (VerifyBeforeExit) { |
2039 warning("Heap verification at shutdown disabled " | |
2040 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2041 VerifyBeforeExit = false; // Disable verification at shutdown | |
2042 } | |
2043 } | |
2044 | |
2045 // Note: only executed in non-PRODUCT mode | |
2046 if (!UseAsyncConcMarkSweepGC && | |
2047 (ExplicitGCInvokesConcurrent || | |
2048 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2049 jio_fprintf(defaultStream::error_stream(), | |
6628
bb3f6194fedb
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
brutisso
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6266
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|
2050 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2051 " with -UseAsyncConcMarkSweepGC"); |
2052 status = false; | |
2053 } | |
2054 | |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
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2362
diff
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|
2055 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
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2362
diff
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|
2056 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
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7479
diff
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|
2057 #if INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
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|
2058 if (UseG1GC) { |
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diff
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|
2059 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
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1257
diff
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|
2060 "InitiatingHeapOccupancyPercent"); |
2174
234761c55641
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|
2061 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
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2129
diff
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|
2062 "G1RefProcDrainInterval"); |
234761c55641
6608385: G1: need to support parallel reference processing
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2129
diff
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|
2063 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
234761c55641
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diff
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|
2064 "G1ConcMarkStepDurationMillis"); |
10246
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|
2065 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
194f52aa2f23
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|
2066 "G1ConcRSHotCardLimit"); |
194f52aa2f23
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|
2067 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
194f52aa2f23
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|
2068 "G1ConcRSLogCacheSize"); |
1283
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|
2069 } |
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2070 if (UseConcMarkSweepGC) { |
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|
2071 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
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2072 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
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2073 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
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2074 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
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|
2075 |
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|
2076 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
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|
2077 |
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|
2078 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
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2079 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
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2080 status = status && verify_interval(CMS_FLSWeight, 0, 100, "CMS_FLSWeight"); |
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|
2081 |
12f651e29f6b
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|
2082 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
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|
2083 |
12f651e29f6b
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|
2084 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
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|
2085 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
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|
2086 |
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|
2087 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
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|
2088 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
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|
2089 status = status && verify_interval(CMSPrecleanNumerator, 0, CMSPrecleanDenominator - 1, "CMSPrecleanNumerator"); |
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|
2090 |
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|
2091 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
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6843347: Boundary values in some public GC options cause crashes
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|
2092 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
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|
2093 status = status && verify_min_value(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
12f651e29f6b
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|
2094 |
12f651e29f6b
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|
2095 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
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|
2096 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
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changeset
|
2097 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2098 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2099 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
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 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2102 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2103 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2104 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2105 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2106 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2107 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2108 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2109 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2110 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2111 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2112 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2113 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2114 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2115 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2116 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2117 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2118 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2119 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2120 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2121 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2122 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2123 // 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
|
2124 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2125 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2126 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2127 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2128 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
|
2129 |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2130 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
|
2131 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2132 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2133 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2134 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2135 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2136 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2137 status = status && verify_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2138 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2139 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
|
2140 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2141 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2142 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2143 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2144 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2145 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2146 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2147 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2148 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2149 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2150 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2151 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2152 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2153 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2154 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2155 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2156 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2157 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2158 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2159 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2160 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2161 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2162 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2163 // 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
|
2164 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2165 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2166 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2167 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2168 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2169 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2170 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2171 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2172 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2173 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2174 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2175 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2176 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2177 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2178 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2179 " 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
|
2180 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2181 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2182 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2183 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2184 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2185 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2186 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2187 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2188 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
|
2189 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2190 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2191 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2192 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2193 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2194 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2195 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2196 // 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
|
2197 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2198 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2199 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2200 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2201 "ContendedPaddingWidth=" INTX_FORMAT " must be the between %d and %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2202 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2203 status = false; |
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 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2206 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2207 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2208 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2209 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2210 "ContendedPaddingWidth=" INTX_FORMAT " must be the multiple of %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2211 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2212 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2213 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2214 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2215 // 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
|
2216 // Template Interpreter code is approximately 3X larger in debug builds. |
738e04fb1232
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2217 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
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2218 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
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2219 jio_fprintf(defaultStream::error_stream(), |
11079
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2220 "Invalid InitialCodeCacheSize=%dK. Must be at least %dK.\n", InitialCodeCacheSize/K, |
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|
2221 os::vm_page_size()/K); |
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|
2222 status = false; |
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|
2223 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
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|
2224 jio_fprintf(defaultStream::error_stream(), |
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8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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|
2225 "Invalid ReservedCodeCacheSize: %dK. Must be at least InitialCodeCacheSize=%dK.\n", |
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|
2226 ReservedCodeCacheSize/K, InitialCodeCacheSize/K); |
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|
2227 status = false; |
11079
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|
2228 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
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|
2229 jio_fprintf(defaultStream::error_stream(), |
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|
2230 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
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|
2231 min_code_cache_size/K); |
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|
2232 status = false; |
11109
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|
2233 } else if (ReservedCodeCacheSize > 2*G) { |
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|
2234 // Code cache size larger than MAXINT is not supported. |
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|
2235 jio_fprintf(defaultStream::error_stream(), |
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|
2236 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
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|
2237 (2*G)/M); |
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|
2238 status = false; |
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|
2239 } |
0 | 2240 return status; |
2241 } | |
2242 | |
2243 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2244 const char* option_type) { | |
2245 if (ignore) return false; | |
2246 | |
2247 const char* spacer = " "; | |
2248 if (option_type == NULL) { | |
2249 option_type = ++spacer; // Set both to the empty string. | |
2250 } | |
2251 | |
2252 if (os::obsolete_option(option)) { | |
2253 jio_fprintf(defaultStream::error_stream(), | |
2254 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2255 option->optionString); | |
2256 return false; | |
2257 } else { | |
2258 jio_fprintf(defaultStream::error_stream(), | |
2259 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2260 option->optionString); | |
2261 return true; | |
2262 } | |
2263 } | |
2264 | |
2265 static const char* user_assertion_options[] = { | |
2266 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2267 }; | |
2268 | |
2269 static const char* system_assertion_options[] = { | |
2270 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2271 }; | |
2272 | |
2273 // Return true if any of the strings in null-terminated array 'names' matches. | |
2274 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2275 // the option must match exactly. | |
2276 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2277 bool tail_allowed) { | |
2278 for (/* empty */; *names != NULL; ++names) { | |
2279 if (match_option(option, *names, tail)) { | |
2280 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2281 return true; | |
2282 } | |
2283 } | |
2284 } | |
2285 return false; | |
2286 } | |
2287 | |
1284 | 2288 bool Arguments::parse_uintx(const char* value, |
2289 uintx* uintx_arg, | |
2290 uintx min_size) { | |
2291 | |
2292 // Check the sign first since atomull() parses only unsigned values. | |
2293 bool value_is_positive = !(*value == '-'); | |
2294 | |
2295 if (value_is_positive) { | |
2296 julong n; | |
2297 bool good_return = atomull(value, &n); | |
2298 if (good_return) { | |
2299 bool above_minimum = n >= min_size; | |
2300 bool value_is_too_large = n > max_uintx; | |
2301 | |
2302 if (above_minimum && !value_is_too_large) { | |
2303 *uintx_arg = n; | |
2304 return true; | |
2305 } | |
2306 } | |
2307 } | |
2308 return false; | |
2309 } | |
2310 | |
0 | 2311 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
489
2494ab195856
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|
2312 julong* long_arg, |
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|
2313 julong min_size) { |
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
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|
2314 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2315 return check_memory_size(*long_arg, min_size); |
2316 } | |
2317 | |
2318 // Parse JavaVMInitArgs structure | |
2319 | |
2320 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2321 // For components of the system classpath. | |
2322 SysClassPath scp(Arguments::get_sysclasspath()); | |
2323 bool scp_assembly_required = false; | |
2324 | |
2325 // Save default settings for some mode flags | |
2326 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2327 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2328 Arguments::_ClipInlining = ClipInlining; | |
2329 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2330 | |
3341
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7041582: set_mode_flags isn't called without -Xmixed specified
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|
2331 // Setup flags for mixed which is the default |
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diff
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|
2332 set_mode_flags(_mixed); |
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|
2333 |
0 | 2334 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2335 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2336 if (result != JNI_OK) { | |
2337 return result; | |
2338 } | |
2339 | |
2340 // Parse JavaVMInitArgs structure passed in | |
2341 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2342 if (result != JNI_OK) { | |
2343 return result; | |
2344 } | |
2345 | |
531
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|
2346 if (AggressiveOpts) { |
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|
2347 // Insert alt-rt.jar between user-specified bootclasspath |
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2348 // prefix and the default bootclasspath. os::set_boot_path() |
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2349 // uses meta_index_dir as the default bootclasspath directory. |
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|
2350 const char* altclasses_jar = "alt-rt.jar"; |
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|
2351 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
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diff
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|
2352 strlen(altclasses_jar); |
6197 | 2353 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
531
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diff
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|
2354 strcpy(altclasses_path, get_meta_index_dir()); |
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diff
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|
2355 strcat(altclasses_path, altclasses_jar); |
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diff
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|
2356 scp.add_suffix_to_prefix(altclasses_path); |
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|
2357 scp_assembly_required = true; |
6197 | 2358 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
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|
2359 } |
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|
2360 |
0 | 2361 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2362 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2363 if (result != JNI_OK) { | |
2364 return result; | |
2365 } | |
2366 | |
2367 // Do final processing now that all arguments have been parsed | |
2368 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2369 if (result != JNI_OK) { | |
2370 return result; | |
2371 } | |
2372 | |
2373 return JNI_OK; | |
2374 } | |
2375 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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9077
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|
2376 // Checks if name in command-line argument -agent{lib,path}:name[=options] |
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9077
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|
2377 // represents a valid HPROF of JDWP agent. is_path==true denotes that we |
3c0584fec1e6
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diff
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|
2378 // 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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diff
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|
2379 // -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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|
2380 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
|
2381 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
|
2382 const char *_hprof = "hprof", *_jdwp = "jdwp"; |
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diff
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|
2383 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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|
2384 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2385 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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|
2386 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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|
2387 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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|
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 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2390 _name++; // skip past last path separator |
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|
2391 _len_prefix = strlen(JNI_LIB_PREFIX); |
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|
2392 |
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|
2393 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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|
2394 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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|
2395 } |
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|
2396 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2397 _name += _len_prefix; |
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|
2398 _len_hprof = strlen(_hprof); |
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|
2399 _len_jdwp = strlen(_jdwp); |
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|
2400 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2401 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
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|
2402 _name += _len_hprof; |
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diff
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|
2403 } |
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|
2404 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
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|
2405 _name += _len_jdwp; |
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diff
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|
2406 } |
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|
2407 else { |
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|
2408 return false; |
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diff
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|
2409 } |
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|
2410 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2411 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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|
2412 return false; |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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|
2413 } |
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|
2414 |
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|
2415 return true; |
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|
2416 } |
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|
2417 |
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|
2418 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
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|
2419 return true; |
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|
2420 } |
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|
2421 |
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|
2422 return false; |
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|
2423 } |
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|
2424 |
0 | 2425 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2426 SysClassPath* scp_p, | |
2427 bool* scp_assembly_required_p, | |
2428 FlagValueOrigin origin) { | |
2429 // Remaining part of option string | |
2430 const char* tail; | |
2431 | |
2432 // iterate over arguments | |
2433 for (int index = 0; index < args->nOptions; index++) { | |
2434 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2435 | |
2436 const JavaVMOption* option = args->options + index; | |
2437 | |
2438 if (!match_option(option, "-Djava.class.path", &tail) && | |
2439 !match_option(option, "-Dsun.java.command", &tail) && | |
2440 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2441 | |
2442 // add all jvm options to the jvm_args string. This string | |
2443 // is used later to set the java.vm.args PerfData string constant. | |
2444 // the -Djava.class.path and the -Dsun.java.command options are | |
2445 // omitted from jvm_args string as each have their own PerfData | |
2446 // string constant object. | |
2447 build_jvm_args(option->optionString); | |
2448 } | |
2449 | |
2450 // -verbose:[class/gc/jni] | |
2451 if (match_option(option, "-verbose", &tail)) { | |
2452 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2453 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2454 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2455 } else if (!strcmp(tail, ":gc")) { | |
2456 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2457 } else if (!strcmp(tail, ":jni")) { | |
2458 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2459 } | |
2460 // -da / -ea / -disableassertions / -enableassertions | |
2461 // These accept an optional class/package name separated by a colon, e.g., | |
2462 // -da:java.lang.Thread. | |
2463 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2464 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2465 if (*tail == '\0') { | |
2466 JavaAssertions::setUserClassDefault(enable); | |
2467 } else { | |
2468 assert(*tail == ':', "bogus match by match_option()"); | |
2469 JavaAssertions::addOption(tail + 1, enable); | |
2470 } | |
2471 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2472 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2473 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2474 JavaAssertions::setSystemClassDefault(enable); | |
2475 // -bootclasspath: | |
2476 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2477 scp_p->reset_path(tail); | |
2478 *scp_assembly_required_p = true; | |
2479 // -bootclasspath/a: | |
2480 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2481 scp_p->add_suffix(tail); | |
2482 *scp_assembly_required_p = true; | |
2483 // -bootclasspath/p: | |
2484 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2485 scp_p->add_prefix(tail); | |
2486 *scp_assembly_required_p = true; | |
2487 // -Xrun | |
2488 } else if (match_option(option, "-Xrun", &tail)) { | |
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2489 if (tail != NULL) { |
0 | 2490 const char* pos = strchr(tail, ':'); |
2491 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2492 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2493 name[len] = '\0'; |
2494 | |
2495 char *options = NULL; | |
2496 if(pos != NULL) { | |
2497 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2498 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2499 } |
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2500 #if !INCLUDE_JVMTI |
0 | 2501 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2502 jio_fprintf(defaultStream::error_stream(), |
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2503 "Profiling and debugging agents are not supported in this VM\n"); |
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2504 return JNI_ERR; |
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2505 } |
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2506 #endif // !INCLUDE_JVMTI |
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2507 add_init_library(name, options); |
0 | 2508 } |
2509 // -agentlib and -agentpath | |
2510 } else if (match_option(option, "-agentlib:", &tail) || | |
2511 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2512 if(tail != NULL) { | |
2513 const char* pos = strchr(tail, '='); | |
2514 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2515 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2516 name[len] = '\0'; |
2517 | |
2518 char *options = NULL; | |
2519 if(pos != NULL) { | |
6197 | 2520 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2521 } |
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2522 #if !INCLUDE_JVMTI |
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2523 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
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2524 jio_fprintf(defaultStream::error_stream(), |
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2525 "Profiling and debugging agents are not supported in this VM\n"); |
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2526 return JNI_ERR; |
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|
2527 } |
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|
2528 #endif // !INCLUDE_JVMTI |
0 | 2529 add_init_agent(name, options, is_absolute_path); |
2530 } | |
2531 // -javaagent | |
2532 } else if (match_option(option, "-javaagent:", &tail)) { | |
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2533 #if !INCLUDE_JVMTI |
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2534 jio_fprintf(defaultStream::error_stream(), |
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2535 "Instrumentation agents are not supported in this VM\n"); |
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2536 return JNI_ERR; |
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2537 #else |
0 | 2538 if(tail != NULL) { |
6197 | 2539 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2540 add_init_agent("instrument", options, false); |
2541 } | |
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2542 #endif // !INCLUDE_JVMTI |
0 | 2543 // -Xnoclassgc |
2544 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2545 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2546 // -Xincgc: i-CMS | |
2547 } else if (match_option(option, "-Xincgc", &tail)) { | |
2548 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2549 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2550 // -Xnoincgc: no i-CMS | |
2551 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2552 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2553 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2554 // -Xconcgc | |
2555 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2556 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2557 // -Xnoconcgc | |
2558 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2559 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2560 // -Xbatch | |
2561 } else if (match_option(option, "-Xbatch", &tail)) { | |
2562 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2563 // -Xmn for compatibility with other JVM vendors | |
2564 } else if (match_option(option, "-Xmn", &tail)) { | |
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2565 julong long_initial_eden_size = 0; |
0 | 2566 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2567 if (errcode != arg_in_range) { | |
2568 jio_fprintf(defaultStream::error_stream(), | |
2569 "Invalid initial eden size: %s\n", option->optionString); | |
2570 describe_range_error(errcode); | |
2571 return JNI_EINVAL; | |
2572 } | |
1064 | 2573 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2574 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2575 // -Xms |
2576 } else if (match_option(option, "-Xms", &tail)) { | |
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|
2577 julong long_initial_heap_size = 0; |
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2578 // an initial heap size of 0 means automatically determine |
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2579 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2580 if (errcode != arg_in_range) { |
2581 jio_fprintf(defaultStream::error_stream(), | |
2582 "Invalid initial heap size: %s\n", option->optionString); | |
2583 describe_range_error(errcode); | |
2584 return JNI_EINVAL; | |
2585 } | |
1064 | 2586 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2587 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2588 set_min_heap_size(InitialHeapSize); |
0 | 2589 // -Xmx |
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2590 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
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2591 julong long_max_heap_size = 0; |
0 | 2592 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2593 if (errcode != arg_in_range) { | |
2594 jio_fprintf(defaultStream::error_stream(), | |
2595 "Invalid maximum heap size: %s\n", option->optionString); | |
2596 describe_range_error(errcode); | |
2597 return JNI_EINVAL; | |
2598 } | |
1064 | 2599 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2600 // Xmaxf |
2601 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2602 int maxf = (int)(atof(tail) * 100); | |
2603 if (maxf < 0 || maxf > 100) { | |
2604 jio_fprintf(defaultStream::error_stream(), | |
2605 "Bad max heap free percentage size: %s\n", | |
2606 option->optionString); | |
2607 return JNI_EINVAL; | |
2608 } else { | |
2609 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2610 } | |
2611 // Xminf | |
2612 } else if (match_option(option, "-Xminf", &tail)) { | |
2613 int minf = (int)(atof(tail) * 100); | |
2614 if (minf < 0 || minf > 100) { | |
2615 jio_fprintf(defaultStream::error_stream(), | |
2616 "Bad min heap free percentage size: %s\n", | |
2617 option->optionString); | |
2618 return JNI_EINVAL; | |
2619 } else { | |
2620 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2621 } | |
2622 // -Xss | |
2623 } else if (match_option(option, "-Xss", &tail)) { | |
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|
2624 julong long_ThreadStackSize = 0; |
0 | 2625 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2626 if (errcode != arg_in_range) { | |
2627 jio_fprintf(defaultStream::error_stream(), | |
2628 "Invalid thread stack size: %s\n", option->optionString); | |
2629 describe_range_error(errcode); | |
2630 return JNI_EINVAL; | |
2631 } | |
2632 // Internally track ThreadStackSize in units of 1024 bytes. | |
2633 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2634 round_to((int)long_ThreadStackSize, K) / K); | |
2635 // -Xoss | |
2636 } else if (match_option(option, "-Xoss", &tail)) { | |
2637 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
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|
2638 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
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|
2639 julong long_CodeCacheExpansionSize = 0; |
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|
2640 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
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|
2641 if (errcode != arg_in_range) { |
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|
2642 jio_fprintf(defaultStream::error_stream(), |
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|
2643 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
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|
2644 os::vm_page_size()/K); |
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2645 return JNI_EINVAL; |
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|
2646 } |
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|
2647 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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|
2648 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
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|
2649 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
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|
2650 julong long_ReservedCodeCacheSize = 0; |
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|
2651 |
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8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
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10319
diff
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|
2652 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2653 if (errcode != arg_in_range) { |
2654 jio_fprintf(defaultStream::error_stream(), | |
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2655 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2656 return JNI_EINVAL; |
2657 } | |
2658 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
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|
2659 //-XX:IncreaseFirstTierCompileThresholdAt= |
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diff
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|
2660 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
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|
2661 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
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|
2662 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
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|
2663 jio_fprintf(defaultStream::error_stream(), |
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|
2664 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
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|
2665 option->optionString); |
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|
2666 return JNI_EINVAL; |
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|
2667 } |
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|
2668 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2669 // -green |
2670 } else if (match_option(option, "-green", &tail)) { | |
2671 jio_fprintf(defaultStream::error_stream(), | |
2672 "Green threads support not available\n"); | |
2673 return JNI_EINVAL; | |
2674 // -native | |
2675 } else if (match_option(option, "-native", &tail)) { | |
2676 // HotSpot always uses native threads, ignore silently for compatibility | |
2677 // -Xsqnopause | |
2678 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2679 // EVM option, ignore silently for compatibility | |
2680 // -Xrs | |
2681 } else if (match_option(option, "-Xrs", &tail)) { | |
2682 // Classic/EVM option, new functionality | |
2683 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2684 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2685 // change default internal VM signals used - lower case for back compat | |
2686 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2687 // -Xoptimize | |
2688 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2689 // EVM option, ignore silently for compatibility | |
2690 // -Xprof | |
2691 } else if (match_option(option, "-Xprof", &tail)) { | |
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|
2692 #if INCLUDE_FPROF |
0 | 2693 _has_profile = true; |
6854
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|
2694 #else // INCLUDE_FPROF |
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|
2695 jio_fprintf(defaultStream::error_stream(), |
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|
2696 "Flat profiling is not supported in this VM.\n"); |
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2697 return JNI_ERR; |
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2698 #endif // INCLUDE_FPROF |
0 | 2699 // -Xconcurrentio |
2700 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2701 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2702 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2703 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2704 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2705 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2706 | |
2707 // -Xinternalversion | |
2708 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2709 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2710 VM_Version::internal_vm_info_string()); | |
2711 vm_exit(0); | |
2712 #ifndef PRODUCT | |
2713 // -Xprintflags | |
2714 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2715 CommandLineFlags::printFlags(tty, false); |
0 | 2716 vm_exit(0); |
2717 #endif | |
2718 // -D | |
2719 } else if (match_option(option, "-D", &tail)) { | |
2720 if (!add_property(tail)) { | |
2721 return JNI_ENOMEM; | |
2722 } | |
2723 // Out of the box management support | |
2724 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
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2725 #if INCLUDE_MANAGEMENT |
0 | 2726 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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2727 #else |
8720
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2728 jio_fprintf(defaultStream::output_stream(), |
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2729 "-Dcom.sun.management is not supported in this VM.\n"); |
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2730 return JNI_ERR; |
8081
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2731 #endif |
0 | 2732 } |
2733 // -Xint | |
2734 } else if (match_option(option, "-Xint", &tail)) { | |
2735 set_mode_flags(_int); | |
2736 // -Xmixed | |
2737 } else if (match_option(option, "-Xmixed", &tail)) { | |
2738 set_mode_flags(_mixed); | |
2739 // -Xcomp | |
2740 } else if (match_option(option, "-Xcomp", &tail)) { | |
2741 // for testing the compiler; turn off all flags that inhibit compilation | |
2742 set_mode_flags(_comp); | |
2743 // -Xshare:dump | |
2744 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2745 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2746 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2747 // -Xshare:on | |
2748 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2749 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2750 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2751 // -Xshare:auto | |
2752 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2753 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2754 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2755 // -Xshare:off | |
2756 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2757 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2758 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2759 // -Xverify | |
2760 } else if (match_option(option, "-Xverify", &tail)) { | |
2761 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2762 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2763 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2764 } else if (strcmp(tail, ":remote") == 0) { | |
2765 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2766 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2767 } else if (strcmp(tail, ":none") == 0) { | |
2768 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2769 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2770 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2771 return JNI_EINVAL; | |
2772 } | |
2773 // -Xdebug | |
2774 } else if (match_option(option, "-Xdebug", &tail)) { | |
2775 // note this flag has been used, then ignore | |
2776 set_xdebug_mode(true); | |
2777 // -Xnoagent | |
2778 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2779 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2780 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2781 // Bind user level threads to kernel threads (Solaris only) | |
2782 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2783 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2784 // Redirect GC output to the file. -Xloggc:<filename> | |
2785 // ostream_init_log(), when called will use this filename | |
2786 // to initialize a fileStream. | |
2787 _gc_log_filename = strdup(tail); | |
2788 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2789 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2790 | |
2791 // JNI hooks | |
2792 } else if (match_option(option, "-Xcheck", &tail)) { | |
2793 if (!strcmp(tail, ":jni")) { | |
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2794 #if !INCLUDE_JNI_CHECK |
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2795 warning("JNI CHECKING is not supported in this VM"); |
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2796 #else |
0 | 2797 CheckJNICalls = true; |
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2798 #endif // INCLUDE_JNI_CHECK |
0 | 2799 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2800 "check")) { | |
2801 return JNI_EINVAL; | |
2802 } | |
2803 } else if (match_option(option, "vfprintf", &tail)) { | |
2804 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2805 } else if (match_option(option, "exit", &tail)) { | |
2806 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2807 } else if (match_option(option, "abort", &tail)) { | |
2808 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2809 // -XX:+AggressiveHeap | |
2810 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2811 | |
2812 // This option inspects the machine and attempts to set various | |
2813 // parameters to be optimal for long-running, memory allocation | |
2814 // intensive jobs. It is intended for machines with large | |
2815 // amounts of cpu and memory. | |
2816 | |
2817 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2818 // VM, but we may not be able to represent the total physical memory | |
2819 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2820 // Thus, we need to make sure we're using a julong for intermediate | |
2821 // calculations. | |
2822 julong initHeapSize; | |
2823 julong total_memory = os::physical_memory(); | |
2824 | |
2825 if (total_memory < (julong)256*M) { | |
2826 jio_fprintf(defaultStream::error_stream(), | |
2827 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2828 vm_exit(1); | |
2829 } | |
2830 | |
2831 // The heap size is half of available memory, or (at most) | |
2832 // all of possible memory less 160mb (leaving room for the OS | |
2833 // when using ISM). This is the maximum; because adaptive sizing | |
2834 // is turned on below, the actual space used may be smaller. | |
2835 | |
2836 initHeapSize = MIN2(total_memory / (julong)2, | |
2837 total_memory - (julong)160*M); | |
2838 | |
8854
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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2839 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2840 |
2841 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2842 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2843 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2844 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2845 set_min_heap_size(initHeapSize); |
0 | 2846 } |
2847 if (FLAG_IS_DEFAULT(NewSize)) { | |
2848 // Make the young generation 3/8ths of the total heap. | |
2849 FLAG_SET_CMDLINE(uintx, NewSize, | |
2850 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2851 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2852 } | |
2853 | |
6917
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2854 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2855 FLAG_SET_DEFAULT(UseLargePages, true); |
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2856 #endif |
0 | 2857 |
2858 // Increase some data structure sizes for efficiency | |
2859 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2860 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2861 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2862 | |
2863 // See the OldPLABSize comment below, but replace 'after promotion' | |
2864 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2865 // space per-gc-thread buffers. The default is 4kw. | |
2866 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2867 | |
2868 // OldPLABSize is the size of the buffers in the old gen that | |
2869 // UseParallelGC uses to promote live data that doesn't fit in the | |
2870 // survivor spaces. At any given time, there's one for each gc thread. | |
2871 // The default size is 1kw. These buffers are rarely used, since the | |
2872 // survivor spaces are usually big enough. For specjbb, however, there | |
2873 // are occasions when there's lots of live data in the young gen | |
2874 // and we end up promoting some of it. We don't have a definite | |
2875 // explanation for why bumping OldPLABSize helps, but the theory | |
2876 // is that a bigger PLAB results in retaining something like the | |
2877 // original allocation order after promotion, which improves mutator | |
2878 // locality. A minor effect may be that larger PLABs reduce the | |
2879 // number of PLAB allocation events during gc. The value of 8kw | |
2880 // was arrived at by experimenting with specjbb. | |
2881 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2882 | |
2883 // Enable parallel GC and adaptive generation sizing | |
2884 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
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2885 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2886 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2887 |
2888 // Encourage steady state memory management | |
2889 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2890 | |
2891 // This appears to improve mutator locality | |
2892 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2893 | |
2894 // Get around early Solaris scheduling bug | |
2895 // (affinity vs other jobs on system) | |
2896 // but disallow DR and offlining (5008695). | |
2897 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2898 | |
2899 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2900 // The last option must always win. | |
2901 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2902 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2903 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2904 // The last option must always win. | |
2905 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2906 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2907 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2908 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2909 jio_fprintf(defaultStream::error_stream(), | |
2910 "Please use CMSClassUnloadingEnabled in place of " | |
2911 "CMSPermGenSweepingEnabled in the future\n"); | |
2912 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2913 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2914 jio_fprintf(defaultStream::error_stream(), | |
2915 "Please use -XX:+UseGCOverheadLimit in place of " | |
2916 "-XX:+UseGCTimeLimit in the future\n"); | |
2917 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2918 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2919 jio_fprintf(defaultStream::error_stream(), | |
2920 "Please use -XX:-UseGCOverheadLimit in place of " | |
2921 "-XX:-UseGCTimeLimit in the future\n"); | |
2922 // The TLE options are for compatibility with 1.3 and will be | |
2923 // removed without notice in a future release. These options | |
2924 // are not to be documented. | |
2925 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2926 // No longer used. | |
2927 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2928 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2929 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2930 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2931 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2932 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2933 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2934 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2935 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2936 // No longer used. | |
2937 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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2938 julong long_tlab_size = 0; |
0 | 2939 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2940 if (errcode != arg_in_range) { | |
2941 jio_fprintf(defaultStream::error_stream(), | |
2942 "Invalid TLAB size: %s\n", option->optionString); | |
2943 describe_range_error(errcode); | |
2944 return JNI_EINVAL; | |
2945 } | |
2946 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2947 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2948 // No longer used. | |
2949 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2950 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2951 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2952 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2953 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2954 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2955 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2956 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2957 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2958 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2959 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2960 #if defined(DTRACE_ENABLED) |
0 | 2961 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2962 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2963 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2964 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2965 #else // defined(DTRACE_ENABLED) |
0 | 2966 jio_fprintf(defaultStream::error_stream(), |
4006 | 2967 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2968 return JNI_EINVAL; |
4006 | 2969 #endif // defined(DTRACE_ENABLED) |
0 | 2970 #ifdef ASSERT |
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2971 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2972 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2973 // disable scavenge before parallel mark-compact | |
2974 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2975 #endif | |
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2976 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 2977 julong cms_blocks_to_claim = (julong)atol(tail); |
2978 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
2979 jio_fprintf(defaultStream::error_stream(), | |
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2980 "Please use -XX:OldPLABSize in place of " |
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2981 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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2982 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
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2983 julong cms_blocks_to_claim = (julong)atol(tail); |
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2984 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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2985 jio_fprintf(defaultStream::error_stream(), |
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|
2986 "Please use -XX:OldPLABSize in place of " |
0 | 2987 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
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2988 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
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2989 julong old_plab_size = 0; |
0 | 2990 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
2991 if (errcode != arg_in_range) { | |
2992 jio_fprintf(defaultStream::error_stream(), | |
2993 "Invalid old PLAB size: %s\n", option->optionString); | |
2994 describe_range_error(errcode); | |
2995 return JNI_EINVAL; | |
2996 } | |
489
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2997 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 2998 jio_fprintf(defaultStream::error_stream(), |
2999 "Please use -XX:OldPLABSize in place of " | |
3000 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
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3001 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
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3002 julong young_plab_size = 0; |
0 | 3003 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3004 if (errcode != arg_in_range) { | |
3005 jio_fprintf(defaultStream::error_stream(), | |
3006 "Invalid young PLAB size: %s\n", option->optionString); | |
3007 describe_range_error(errcode); | |
3008 return JNI_EINVAL; | |
3009 } | |
489
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|
3010 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3011 jio_fprintf(defaultStream::error_stream(), |
3012 "Please use -XX:YoungPLABSize in place of " | |
3013 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3014 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3015 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3016 julong stack_size = 0; | |
3017 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3018 if (errcode != arg_in_range) { | |
3019 jio_fprintf(defaultStream::error_stream(), | |
3020 "Invalid mark stack size: %s\n", option->optionString); | |
3021 describe_range_error(errcode); | |
3022 return JNI_EINVAL; | |
3023 } | |
3024 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3025 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3026 julong max_stack_size = 0; | |
3027 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3028 if (errcode != arg_in_range) { | |
3029 jio_fprintf(defaultStream::error_stream(), | |
3030 "Invalid maximum mark stack size: %s\n", | |
3031 option->optionString); | |
3032 describe_range_error(errcode); | |
3033 return JNI_EINVAL; | |
3034 } | |
3035 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3036 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3037 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3038 uintx conc_threads = 0; | |
3039 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3040 jio_fprintf(defaultStream::error_stream(), | |
3041 "Invalid concurrent threads: %s\n", option->optionString); | |
3042 return JNI_EINVAL; | |
3043 } | |
3044 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3045 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3046 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3047 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
|
3048 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3049 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3050 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3051 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3052 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3053 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3054 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3055 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3056 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3057 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3058 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3059 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
|
3060 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
|
3061 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3062 } 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
|
3063 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
|
3064 "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
|
3065 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3066 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3067 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3068 // Skip -XX:Flags= since that case has already been handled |
3069 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3070 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3071 return JNI_EINVAL; | |
3072 } | |
3073 } | |
3074 // Unknown option | |
3075 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3076 return JNI_ERR; | |
3077 } | |
3078 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3079 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3080 // 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
|
3081 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3082 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3083 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3084 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3085 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3086 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3087 #endif // LINUX |
0 | 3088 return JNI_OK; |
3089 } | |
3090 | |
3091 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3092 // This must be done after all -D arguments have been processed. | |
3093 scp_p->expand_endorsed(); | |
3094 | |
3095 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3096 // Assemble the bootclasspath elements into the final path. | |
3097 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3098 } | |
3099 | |
3100 // This must be done after all arguments have been processed. | |
3101 // java_compiler() true means set to "NONE" or empty. | |
3102 if (java_compiler() && !xdebug_mode()) { | |
3103 // For backwards compatibility, we switch to interpreted mode if | |
3104 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3105 // not specified. | |
3106 set_mode_flags(_int); | |
3107 } | |
3108 if (CompileThreshold == 0) { | |
3109 set_mode_flags(_int); | |
3110 } | |
3111 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3112 // 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
|
3113 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
|
3114 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
|
3115 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3116 |
0 | 3117 #ifndef COMPILER2 |
3118 // Don't degrade server performance for footprint | |
3119 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3120 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3121 // No need for large granularity pages w/small heaps. | |
3122 // Note that large pages are enabled/disabled for both the | |
3123 // Java heap and the code cache. | |
3124 FLAG_SET_DEFAULT(UseLargePages, false); | |
3125 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3126 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3127 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3128 TieredCompilation = false; |
0 | 3129 #else |
3130 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3131 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3132 } | |
3133 #endif | |
3134 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3135 // 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
|
3136 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3137 // 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
|
3138 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3139 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3140 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3141 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3142 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3143 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3144 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3145 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3146 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3147 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3148 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3149 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3150 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3151 return JNI_ENOMEM; |
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 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3156 |
0 | 3157 if (!check_vm_args_consistency()) { |
3158 return JNI_ERR; | |
3159 } | |
3160 | |
3161 return JNI_OK; | |
3162 } | |
3163 | |
3164 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3165 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3166 scp_assembly_required_p); | |
3167 } | |
3168 | |
3169 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3170 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3171 scp_assembly_required_p); | |
3172 } | |
3173 | |
3174 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3175 const int N_MAX_OPTIONS = 64; | |
3176 const int OPTION_BUFFER_SIZE = 1024; | |
3177 char buffer[OPTION_BUFFER_SIZE]; | |
3178 | |
3179 // The variable will be ignored if it exceeds the length of the buffer. | |
3180 // Don't check this variable if user has special privileges | |
3181 // (e.g. unix su command). | |
3182 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3183 !os::have_special_privileges()) { | |
3184 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3185 jio_fprintf(defaultStream::error_stream(), | |
3186 "Picked up %s: %s\n", name, buffer); | |
3187 char* rd = buffer; // pointer to the input string (rd) | |
3188 int i; | |
3189 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3190 while (isspace(*rd)) rd++; // skip whitespace | |
3191 if (*rd == 0) break; // we re done when the input string is read completely | |
3192 | |
3193 // The output, option string, overwrites the input string. | |
3194 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3195 // input string (rd). | |
3196 char* wrt = rd; | |
3197 | |
3198 options[i++].optionString = wrt; // Fill in option | |
3199 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3200 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3201 int quote = *rd; // matching quote to look for | |
3202 rd++; // don't copy open quote | |
3203 while (*rd != quote) { // include everything (even spaces) up until quote | |
3204 if (*rd == 0) { // string termination means unmatched string | |
3205 jio_fprintf(defaultStream::error_stream(), | |
3206 "Unmatched quote in %s\n", name); | |
3207 return JNI_ERR; | |
3208 } | |
3209 *wrt++ = *rd++; // copy to option string | |
3210 } | |
3211 rd++; // don't copy close quote | |
3212 } else { | |
3213 *wrt++ = *rd++; // copy to option string | |
3214 } | |
3215 } | |
3216 // Need to check if we're done before writing a NULL, | |
3217 // because the write could be to the byte that rd is pointing to. | |
3218 if (*rd++ == 0) { | |
3219 *wrt = 0; | |
3220 break; | |
3221 } | |
3222 *wrt = 0; // Zero terminate option | |
3223 } | |
3224 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3225 JavaVMInitArgs vm_args; | |
3226 vm_args.version = JNI_VERSION_1_2; | |
3227 vm_args.options = options; | |
3228 vm_args.nOptions = i; | |
564 | 3229 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3230 |
3231 if (PrintVMOptions) { | |
3232 const char* tail; | |
3233 for (int i = 0; i < vm_args.nOptions; i++) { | |
3234 const JavaVMOption *option = vm_args.options + i; | |
3235 if (match_option(option, "-XX:", &tail)) { | |
3236 logOption(tail); | |
3237 } | |
3238 } | |
3239 } | |
3240 | |
3241 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3242 } | |
3243 return JNI_OK; | |
3244 } | |
3245 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3246 void Arguments::set_shared_spaces_flags() { |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3247 #ifdef _LP64 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3248 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3249 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3250 // 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
|
3251 // 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
|
3252 // initialization, this restriction can probably be lifted. |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3253 if (UseCompressedOops) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3254 if (must_share) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3255 warning("disabling compressed oops because of %s", |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3256 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3257 FLAG_SET_CMDLINE(bool, UseCompressedOops, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3258 FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3259 } else { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3260 // Prefer compressed oops to class data sharing |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3261 if (UseSharedSpaces && Verbose) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3262 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
|
3263 } |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3264 no_shared_spaces(); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3265 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3266 } |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3267 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3268 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3269 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3270 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3271 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
|
3272 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3273 UseSharedSpaces = false; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3274 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3275 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3276 |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3277 // 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
|
3278 // were explicitly requested on the command-line |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3279 #define UNSUPPORTED_OPTION(opt, description) \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3280 do { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3281 if (opt) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3282 if (FLAG_IS_CMDLINE(opt)) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3283 warning(description " is disabled in this release."); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3284 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3285 FLAG_SET_DEFAULT(opt, false); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3286 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3287 } while(0) |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3288 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3289 |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3290 #define UNSUPPORTED_GC_OPTION(gc) \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3291 do { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3292 if (gc) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3293 if (FLAG_IS_CMDLINE(gc)) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3294 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
|
3295 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3296 FLAG_SET_DEFAULT(gc, false); \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3297 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3298 } while(0) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3299 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3300 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3301 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3302 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3303 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
|
3304 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3305 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3306 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3307 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3308 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3309 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3310 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3311 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3312 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3313 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3314 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3315 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3316 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3317 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3318 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
|
3319 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
|
3320 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3321 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
|
3322 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
|
3323 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
|
3324 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3325 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3326 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
|
3327 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
|
3328 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3329 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3330 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3331 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
|
3332 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3333 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
|
3334 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3335 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3336 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3337 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3338 |
0 | 3339 // Parse entry point called from JNI_CreateJavaVM |
3340 | |
3341 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3342 | |
3343 // Remaining part of option string | |
3344 const char* tail; | |
3345 | |
3346 // 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
|
3347 const char* hotspotrc = ".hotspotrc"; |
0 | 3348 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
|
3349 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
|
3350 |
564 | 3351 const char* flags_file; |
0 | 3352 int index; |
3353 for (index = 0; index < args->nOptions; index++) { | |
3354 const JavaVMOption *option = args->options + index; | |
3355 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3356 flags_file = tail; |
0 | 3357 settings_file_specified = true; |
3358 } | |
3359 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3360 PrintVMOptions = true; | |
3361 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3362 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
|
3363 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3364 } |
564 | 3365 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3366 IgnoreUnrecognizedVMOptions = true; | |
3367 } | |
3368 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3369 IgnoreUnrecognizedVMOptions = false; | |
3370 } | |
1150 | 3371 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3372 CommandLineFlags::printFlags(tty, false); |
1150 | 3373 vm_exit(0); |
3374 } | |
6197 | 3375 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3376 #if INCLUDE_NMT |
6197 | 3377 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3378 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3379 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
|
3380 "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
|
3381 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3382 #endif |
6197 | 3383 } |
3384 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3385 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3386 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3387 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3388 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3389 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3390 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3391 #endif |
564 | 3392 } |
3393 | |
3394 if (IgnoreUnrecognizedVMOptions) { | |
3395 // uncast const to modify the flag args->ignoreUnrecognized | |
3396 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3397 } | |
3398 | |
3399 // Parse specified settings file | |
3400 if (settings_file_specified) { | |
3401 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3402 return JNI_EINVAL; | |
3403 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3404 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3405 #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
|
3406 // Parse default .hotspotrc settings file |
0 | 3407 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3408 return JNI_EINVAL; | |
3409 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3410 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3411 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
|
3412 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
|
3413 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
|
3414 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3415 #endif |
0 | 3416 } |
3417 | |
3418 if (PrintVMOptions) { | |
3419 for (index = 0; index < args->nOptions; index++) { | |
3420 const JavaVMOption *option = args->options + index; | |
3421 if (match_option(option, "-XX:", &tail)) { | |
3422 logOption(tail); | |
3423 } | |
3424 } | |
3425 } | |
3426 | |
3427 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3428 jint result = parse_vm_init_args(args); | |
3429 if (result != JNI_OK) { | |
3430 return result; | |
3431 } | |
3432 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3433 // 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
|
3434 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3435 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3436 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3437 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3438 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3439 // 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
|
3440 // 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
|
3441 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
|
3442 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
|
3443 "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
|
3444 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3445 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3446 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3447 #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
|
3448 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3449 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3450 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3451 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3452 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3453 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3454 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3455 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3456 |
0 | 3457 #ifndef PRODUCT |
3458 if (TraceBytecodesAt != 0) { | |
3459 TraceBytecodes = true; | |
3460 } | |
3461 if (CountCompiledCalls) { | |
3462 if (UseCounterDecay) { | |
3463 warning("UseCounterDecay disabled because CountCalls is set"); | |
3464 UseCounterDecay = false; | |
3465 } | |
3466 } | |
3467 #endif // PRODUCT | |
3468 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3469 // 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
|
3470 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3471 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3472 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3473 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
|
3474 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3475 EnableInvokeDynamic = false; |
710 | 3476 } |
3477 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3478 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3479 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3480 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3481 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
|
3482 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3483 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3484 } |
710 | 3485 |
0 | 3486 if (PrintGCDetails) { |
3487 // Turn on -verbose:gc options as well | |
3488 PrintGC = true; | |
3489 } | |
3490 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3491 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3492 // 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
|
3493 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3494 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3495 FLAG_SET_DEFAULT(PrintGCCause, false); |
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 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3498 |
1571
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 values. |
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3500 set_object_alignment(); |
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3501 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3502 #if !INCLUDE_ALL_GCS |
1064 | 3503 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3504 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3505 #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
|
3506 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3507 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
|
3508 "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
|
3509 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3510 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3511 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
|
3512 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
|
3513 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
|
3514 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
|
3515 } |
0 | 3516 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3517 #endif // INCLUDE_CDS |
0 | 3518 |
3519 // Set flags based on ergonomics. | |
3520 set_ergonomics_flags(); | |
3521 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3522 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3523 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3524 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3525 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3526 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3527 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3528 |
1783 | 3529 if (TieredCompilation) { |
3530 set_tiered_flags(); | |
3531 } else { | |
3532 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3533 if (CompilationPolicyChoice >= 2) { | |
3534 vm_exit_during_initialization( | |
3535 "Incompatible compilation policy selected", NULL); | |
3536 } | |
3537 } | |
3538 | |
10990
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3539 set_heap_base_min_address(); |
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3540 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3541 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3542 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3543 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3544 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3545 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3546 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3547 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3548 } 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
|
3549 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3550 } 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
|
3551 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3552 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3553 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3554 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3555 check_deprecated_gcs(); |
8734 | 3556 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3557 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3558 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
|
3559 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
|
3560 " 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
|
3561 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3562 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3563 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3564 #else // INCLUDE_ALL_GCS |
0 | 3565 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3566 #endif // INCLUDE_ALL_GCS |
0 | 3567 |
3568 // Set bytecode rewriting flags | |
3569 set_bytecode_flags(); | |
3570 | |
3571 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3572 set_aggressive_opts_flags(); | |
3573 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3574 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3575 // 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
|
3576 // biased locking. |
2331 | 3577 if (UseHeavyMonitors |
3578 #ifdef COMPILER1 | |
3579 || !UseFastLocking | |
3580 #endif // COMPILER1 | |
3581 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3582 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3583 // 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
|
3584 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3585 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3586 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3587 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3588 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3589 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3590 |
0 | 3591 #ifdef CC_INTERP |
1131 | 3592 // Clear flags not supported by the C++ interpreter |
3593 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3594 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3595 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3596 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3597 #endif // CC_INTERP |
3598 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3599 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3600 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3601 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3602 } |
4777 | 3603 if (!EliminateLocks) { |
3604 EliminateNestedLocks = false; | |
3605 } | |
7473 | 3606 if (!Inline) { |
3607 IncrementalInline = false; | |
3608 } | |
3609 #ifndef PRODUCT | |
3610 if (!IncrementalInline) { | |
3611 AlwaysIncrementalInline = false; | |
3612 } | |
3613 #endif | |
3614 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3615 // incremental inlining: bump MaxNodeLimit | |
3616 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3617 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3618 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3619 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3620 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3621 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
|
3622 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3623 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
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diff
changeset
|
3624 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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changeset
|
3625 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3626 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3627 // Force NmethodSweeper to sweep whole CodeCache each time. |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3628 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3629 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
|
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 } |
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6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
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diff
changeset
|
3632 #endif |
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changeset
|
3633 |
0 | 3634 if (PrintCommandLineFlags) { |
4773 | 3635 CommandLineFlags::printSetFlags(tty); |
0 | 3636 } |
3637 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3638 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3639 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3640 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3641 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3642 UseBiasedLocking = false; |
126ea7725993
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bobv
parents:
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diff
changeset
|
3643 } |
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bobv
parents:
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diff
changeset
|
3644 } |
126ea7725993
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bobv
parents:
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diff
changeset
|
3645 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3646 // 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
|
3647 // but only if not already set on the commandline |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3648 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
|
3649 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
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diff
changeset
|
3650 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3651 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3652 FLAG_SET_DEFAULT(PauseAtExit, true); |
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:
2243
diff
changeset
|
3654 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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diff
changeset
|
3655 |
0 | 3656 return JNI_OK; |
3657 } | |
3658 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3659 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3660 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3661 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3662 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3663 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3664 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3665 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3666 // 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
|
3667 // 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
|
3668 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3669 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3670 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3671 #endif // INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
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diff
changeset
|
3672 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3673 } |
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diff
changeset
|
3674 |
0 | 3675 int Arguments::PropertyList_count(SystemProperty* pl) { |
3676 int count = 0; | |
3677 while(pl != NULL) { | |
3678 count++; | |
3679 pl = pl->next(); | |
3680 } | |
3681 return count; | |
3682 } | |
3683 | |
3684 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3685 assert(key != NULL, "just checking"); | |
3686 SystemProperty* prop; | |
3687 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3688 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3689 } | |
3690 return NULL; | |
3691 } | |
3692 | |
3693 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3694 int count = 0; | |
3695 const char* ret_val = NULL; | |
3696 | |
3697 while(pl != NULL) { | |
3698 if(count >= index) { | |
3699 ret_val = pl->key(); | |
3700 break; | |
3701 } | |
3702 count++; | |
3703 pl = pl->next(); | |
3704 } | |
3705 | |
3706 return ret_val; | |
3707 } | |
3708 | |
3709 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3710 int count = 0; | |
3711 char* ret_val = NULL; | |
3712 | |
3713 while(pl != NULL) { | |
3714 if(count >= index) { | |
3715 ret_val = pl->value(); | |
3716 break; | |
3717 } | |
3718 count++; | |
3719 pl = pl->next(); | |
3720 } | |
3721 | |
3722 return ret_val; | |
3723 } | |
3724 | |
3725 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3726 SystemProperty* p = *plist; | |
3727 if (p == NULL) { | |
3728 *plist = new_p; | |
3729 } else { | |
3730 while (p->next() != NULL) { | |
3731 p = p->next(); | |
3732 } | |
3733 p->set_next(new_p); | |
3734 } | |
3735 } | |
3736 | |
3737 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3738 if (plist == NULL) | |
3739 return; | |
3740 | |
3741 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3742 PropertyList_add(plist, new_p); | |
3743 } | |
3744 | |
3745 // This add maintains unique property key in the list. | |
691 | 3746 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3747 if (plist == NULL) |
3748 return; | |
3749 | |
3750 // If property key exist then update with new value. | |
3751 SystemProperty* prop; | |
3752 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3753 if (strcmp(k, prop->key()) == 0) { | |
691 | 3754 if (append) { |
3755 prop->append_value(v); | |
3756 } else { | |
3757 prop->set_value(v); | |
3758 } | |
0 | 3759 return; |
3760 } | |
3761 } | |
3762 | |
3763 PropertyList_add(plist, k, v); | |
3764 } | |
3765 | |
3766 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3767 // Returns true if all of the source pointed by src has been copied over to | |
3768 // the destination buffer pointed by buf. Otherwise, returns false. | |
3769 // Notes: | |
3770 // 1. If the length (buflen) of the destination buffer excluding the | |
3771 // NULL terminator character is not long enough for holding the expanded | |
3772 // pid characters, it also returns false instead of returning the partially | |
3773 // expanded one. | |
3774 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3775 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3776 char* buf, size_t buflen) { | |
3777 const char* p = src; | |
3778 char* b = buf; | |
3779 const char* src_end = &src[srclen]; | |
3780 char* buf_end = &buf[buflen - 1]; | |
3781 | |
3782 while (p < src_end && b < buf_end) { | |
3783 if (*p == '%') { | |
3784 switch (*(++p)) { | |
3785 case '%': // "%%" ==> "%" | |
3786 *b++ = *p++; | |
3787 break; | |
3788 case 'p': { // "%p" ==> current process id | |
3789 // buf_end points to the character before the last character so | |
3790 // that we could write '\0' to the end of the buffer. | |
3791 size_t buf_sz = buf_end - b + 1; | |
3792 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3793 | |
3794 // if jio_snprintf fails or the buffer is not long enough to hold | |
3795 // the expanded pid, returns false. | |
3796 if (ret < 0 || ret >= (int)buf_sz) { | |
3797 return false; | |
3798 } else { | |
3799 b += ret; | |
3800 assert(*b == '\0', "fail in copy_expand_pid"); | |
3801 if (p == src_end && b == buf_end + 1) { | |
3802 // reach the end of the buffer. | |
3803 return true; | |
3804 } | |
3805 } | |
3806 p++; | |
3807 break; | |
3808 } | |
3809 default : | |
3810 *b++ = '%'; | |
3811 } | |
3812 } else { | |
3813 *b++ = *p++; | |
3814 } | |
3815 } | |
3816 *b = '\0'; | |
3817 return (p == src_end); // return false if not all of the source was copied | |
3818 } |