Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 11239:6c098f64a7a6
added support for handling volatile registers across native runtime calls
author | Doug Simon <doug.simon@oracle.com> |
---|---|
date | Wed, 07 Aug 2013 01:52:44 +0200 |
parents | e28663a9f5ef |
children | f49ee75d2a8b |
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; | |
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67 #ifdef GRAAL |
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68 char** Arguments::_graal_args_array = NULL; |
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69 int Arguments::_num_graal_args = 0; |
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70 #endif |
0 | 71 char* Arguments::_java_command = NULL; |
72 SystemProperty* Arguments::_system_properties = NULL; | |
73 const char* Arguments::_gc_log_filename = NULL; | |
74 bool Arguments::_has_profile = false; | |
75 uintx Arguments::_min_heap_size = 0; | |
76 Arguments::Mode Arguments::_mode = _mixed; | |
77 bool Arguments::_java_compiler = false; | |
78 bool Arguments::_xdebug_mode = false; | |
79 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
80 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
81 int Arguments::_sun_java_launcher_pid = -1; | |
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82 bool Arguments::_created_by_gamma_launcher = false; |
0 | 83 |
84 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
85 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
86 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
87 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
88 bool Arguments::_ClipInlining = ClipInlining; | |
89 | |
90 char* Arguments::SharedArchivePath = NULL; | |
91 | |
92 AgentLibraryList Arguments::_libraryList; | |
93 AgentLibraryList Arguments::_agentList; | |
94 | |
95 abort_hook_t Arguments::_abort_hook = NULL; | |
96 exit_hook_t Arguments::_exit_hook = NULL; | |
97 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
98 | |
99 | |
100 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
101 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
102 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
103 SystemProperty *Arguments::_java_library_path = NULL; | |
104 SystemProperty *Arguments::_java_home = NULL; | |
105 SystemProperty *Arguments::_java_class_path = NULL; | |
106 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
107 | |
108 char* Arguments::_meta_index_path = NULL; | |
109 char* Arguments::_meta_index_dir = NULL; | |
110 | |
111 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
112 | |
113 static bool match_option(const JavaVMOption *option, const char* name, | |
114 const char** tail) { | |
115 int len = (int)strlen(name); | |
116 if (strncmp(option->optionString, name, len) == 0) { | |
117 *tail = option->optionString + len; | |
118 return true; | |
119 } else { | |
120 return false; | |
121 } | |
122 } | |
123 | |
124 static void logOption(const char* opt) { | |
125 if (PrintVMOptions) { | |
126 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
127 } | |
128 } | |
129 | |
130 // Process java launcher properties. | |
131 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
132 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
133 // Must do this before setting up other system properties, | |
134 // as some of them may depend on launcher type. | |
135 for (int index = 0; index < args->nOptions; index++) { | |
136 const JavaVMOption* option = args->options + index; | |
137 const char* tail; | |
138 | |
139 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
140 process_java_launcher_argument(tail, option->extraInfo); | |
141 continue; | |
142 } | |
143 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
144 _sun_java_launcher_pid = atoi(tail); | |
145 continue; | |
146 } | |
147 } | |
148 } | |
149 | |
150 // Initialize system properties key and value. | |
151 void Arguments::init_system_properties() { | |
152 | |
153 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
154 "Java Virtual Machine Specification", false)); | |
155 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
156 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
157 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
158 | |
159 // following are JVMTI agent writeable properties. | |
160 // Properties values are set to NULL and they are | |
161 // os specific they are initialized in os::init_system_properties_values(). | |
162 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
163 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
164 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
165 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
166 _java_home = new SystemProperty("java.home", NULL, true); | |
167 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
168 | |
169 _java_class_path = new SystemProperty("java.class.path", "", true); | |
170 | |
171 // Add to System Property list. | |
172 PropertyList_add(&_system_properties, _java_ext_dirs); | |
173 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
174 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
175 PropertyList_add(&_system_properties, _java_library_path); | |
176 PropertyList_add(&_system_properties, _java_home); | |
177 PropertyList_add(&_system_properties, _java_class_path); | |
178 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
179 | |
180 // Set OS specific system properties values | |
181 os::init_system_properties_values(); | |
182 } | |
183 | |
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184 |
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185 // Update/Initialize System properties after JDK version number is known |
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186 void Arguments::init_version_specific_system_properties() { |
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187 enum { bufsz = 16 }; |
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188 char buffer[bufsz]; |
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189 const char* spec_vendor = "Sun Microsystems Inc."; |
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190 uint32_t spec_version = 0; |
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191 |
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192 if (JDK_Version::is_gte_jdk17x_version()) { |
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193 spec_vendor = "Oracle Corporation"; |
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194 spec_version = JDK_Version::current().major_version(); |
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195 } |
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196 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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197 |
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198 PropertyList_add(&_system_properties, |
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199 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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200 PropertyList_add(&_system_properties, |
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201 new SystemProperty("java.vm.specification.version", buffer, false)); |
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202 PropertyList_add(&_system_properties, |
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203 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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204 } |
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205 |
242 | 206 /** |
207 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
208 * When a flag is eliminated, it can be added to this list in order to | |
209 * continue accepting this flag on the command-line, while issuing a warning | |
210 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
211 * limit, we flatly refuse to admit the existence of the flag. This allows | |
212 * a flag to die correctly over JDK releases using HSX. | |
213 */ | |
214 typedef struct { | |
215 const char* name; | |
216 JDK_Version obsoleted_in; // when the flag went away | |
217 JDK_Version accept_until; // which version to start denying the existence | |
218 } ObsoleteFlag; | |
0 | 219 |
242 | 220 static ObsoleteFlag obsolete_jvm_flags[] = { |
221 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
222 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
223 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
224 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
225 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
226 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
227 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
228 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
229 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
230 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
231 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
232 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
233 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
234 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 235 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
236 { "DefaultInitialRAMFraction", | |
237 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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238 { "UseDepthFirstScavengeOrder", |
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239 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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240 { "HandlePromotionFailure", |
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241 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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242 { "MaxLiveObjectEvacuationRatio", |
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243 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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244 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
3251
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245 { "UseParallelOldGCCompacting", |
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246 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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247 { "UseParallelDensePrefixUpdate", |
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248 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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249 { "UseParallelOldGCDensePrefix", |
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250 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 251 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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252 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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253 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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254 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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255 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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256 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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257 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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258 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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259 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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260 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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261 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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262 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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263 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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264 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 265 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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266 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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267 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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268 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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269 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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270 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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271 #ifdef PRODUCT |
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272 { "DesiredMethodLimit", |
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273 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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274 #endif // PRODUCT |
242 | 275 { NULL, JDK_Version(0), JDK_Version(0) } |
276 }; | |
277 | |
278 // Returns true if the flag is obsolete and fits into the range specified | |
279 // for being ignored. In the case that the flag is ignored, the 'version' | |
280 // value is filled in with the version number when the flag became | |
281 // obsolete so that that value can be displayed to the user. | |
282 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 283 int i = 0; |
242 | 284 assert(version != NULL, "Must provide a version buffer"); |
285 while (obsolete_jvm_flags[i].name != NULL) { | |
286 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 287 // <flag>=xxx form |
288 // [-|+]<flag> form | |
242 | 289 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 290 ((s[0] == '+' || s[0] == '-') && |
242 | 291 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
292 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
293 *version = flag_status.obsoleted_in; | |
294 return true; | |
295 } | |
0 | 296 } |
297 i++; | |
298 } | |
299 return false; | |
300 } | |
301 | |
302 // Constructs the system class path (aka boot class path) from the following | |
303 // components, in order: | |
304 // | |
305 // prefix // from -Xbootclasspath/p:... | |
306 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
307 // base // from os::get_system_properties() or -Xbootclasspath= | |
308 // suffix // from -Xbootclasspath/a:... | |
309 // | |
310 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
311 // directories are added to the sysclasspath just before the base. | |
312 // | |
313 // This could be AllStatic, but it isn't needed after argument processing is | |
314 // complete. | |
315 class SysClassPath: public StackObj { | |
316 public: | |
317 SysClassPath(const char* base); | |
318 ~SysClassPath(); | |
319 | |
320 inline void set_base(const char* base); | |
321 inline void add_prefix(const char* prefix); | |
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322 inline void add_suffix_to_prefix(const char* suffix); |
0 | 323 inline void add_suffix(const char* suffix); |
324 inline void reset_path(const char* base); | |
325 | |
326 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
327 // property. Must be called after all command-line arguments have been | |
328 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
329 // combined_path(). | |
330 void expand_endorsed(); | |
331 | |
332 inline const char* get_base() const { return _items[_scp_base]; } | |
333 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
334 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
335 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
336 | |
337 // Combine all the components into a single c-heap-allocated string; caller | |
338 // must free the string if/when no longer needed. | |
339 char* combined_path(); | |
340 | |
341 private: | |
342 // Utility routines. | |
343 static char* add_to_path(const char* path, const char* str, bool prepend); | |
344 static char* add_jars_to_path(char* path, const char* directory); | |
345 | |
346 inline void reset_item_at(int index); | |
347 | |
348 // Array indices for the items that make up the sysclasspath. All except the | |
349 // base are allocated in the C heap and freed by this class. | |
350 enum { | |
351 _scp_prefix, // from -Xbootclasspath/p:... | |
352 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
353 _scp_base, // the default sysclasspath | |
354 _scp_suffix, // from -Xbootclasspath/a:... | |
355 _scp_nitems // the number of items, must be last. | |
356 }; | |
357 | |
358 const char* _items[_scp_nitems]; | |
359 DEBUG_ONLY(bool _expansion_done;) | |
360 }; | |
361 | |
362 SysClassPath::SysClassPath(const char* base) { | |
363 memset(_items, 0, sizeof(_items)); | |
364 _items[_scp_base] = base; | |
365 DEBUG_ONLY(_expansion_done = false;) | |
366 } | |
367 | |
368 SysClassPath::~SysClassPath() { | |
369 // Free everything except the base. | |
370 for (int i = 0; i < _scp_nitems; ++i) { | |
371 if (i != _scp_base) reset_item_at(i); | |
372 } | |
373 DEBUG_ONLY(_expansion_done = false;) | |
374 } | |
375 | |
376 inline void SysClassPath::set_base(const char* base) { | |
377 _items[_scp_base] = base; | |
378 } | |
379 | |
380 inline void SysClassPath::add_prefix(const char* prefix) { | |
381 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
382 } | |
383 | |
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384 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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385 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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386 } |
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387 |
0 | 388 inline void SysClassPath::add_suffix(const char* suffix) { |
389 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
390 } | |
391 | |
392 inline void SysClassPath::reset_item_at(int index) { | |
393 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
394 if (_items[index] != NULL) { | |
6197 | 395 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 396 _items[index] = NULL; |
397 } | |
398 } | |
399 | |
400 inline void SysClassPath::reset_path(const char* base) { | |
401 // Clear the prefix and suffix. | |
402 reset_item_at(_scp_prefix); | |
403 reset_item_at(_scp_suffix); | |
404 set_base(base); | |
405 } | |
406 | |
407 //------------------------------------------------------------------------------ | |
408 | |
409 void SysClassPath::expand_endorsed() { | |
410 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
411 | |
412 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
413 if (path == NULL) { | |
414 path = Arguments::get_endorsed_dir(); | |
415 assert(path != NULL, "no default for java.endorsed.dirs"); | |
416 } | |
417 | |
418 char* expanded_path = NULL; | |
419 const char separator = *os::path_separator(); | |
420 const char* const end = path + strlen(path); | |
421 while (path < end) { | |
422 const char* tmp_end = strchr(path, separator); | |
423 if (tmp_end == NULL) { | |
424 expanded_path = add_jars_to_path(expanded_path, path); | |
425 path = end; | |
426 } else { | |
6197 | 427 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 428 memcpy(dirpath, path, tmp_end - path); |
429 dirpath[tmp_end - path] = '\0'; | |
430 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 431 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 432 path = tmp_end + 1; |
433 } | |
434 } | |
435 _items[_scp_endorsed] = expanded_path; | |
436 DEBUG_ONLY(_expansion_done = true;) | |
437 } | |
438 | |
439 // Combine the bootclasspath elements, some of which may be null, into a single | |
440 // c-heap-allocated string. | |
441 char* SysClassPath::combined_path() { | |
442 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
443 assert(_expansion_done, "must call expand_endorsed() first."); | |
444 | |
445 size_t lengths[_scp_nitems]; | |
446 size_t total_len = 0; | |
447 | |
448 const char separator = *os::path_separator(); | |
449 | |
450 // Get the lengths. | |
451 int i; | |
452 for (i = 0; i < _scp_nitems; ++i) { | |
453 if (_items[i] != NULL) { | |
454 lengths[i] = strlen(_items[i]); | |
455 // Include space for the separator char (or a NULL for the last item). | |
456 total_len += lengths[i] + 1; | |
457 } | |
458 } | |
459 assert(total_len > 0, "empty sysclasspath not allowed"); | |
460 | |
461 // Copy the _items to a single string. | |
6197 | 462 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 463 char* cp_tmp = cp; |
464 for (i = 0; i < _scp_nitems; ++i) { | |
465 if (_items[i] != NULL) { | |
466 memcpy(cp_tmp, _items[i], lengths[i]); | |
467 cp_tmp += lengths[i]; | |
468 *cp_tmp++ = separator; | |
469 } | |
470 } | |
471 *--cp_tmp = '\0'; // Replace the extra separator. | |
472 return cp; | |
473 } | |
474 | |
475 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
476 char* | |
477 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
478 char *cp; | |
479 | |
480 assert(str != NULL, "just checking"); | |
481 if (path == NULL) { | |
482 size_t len = strlen(str) + 1; | |
6197 | 483 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 484 memcpy(cp, str, len); // copy the trailing null |
485 } else { | |
486 const char separator = *os::path_separator(); | |
487 size_t old_len = strlen(path); | |
488 size_t str_len = strlen(str); | |
489 size_t len = old_len + str_len + 2; | |
490 | |
491 if (prepend) { | |
6197 | 492 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 493 char* cp_tmp = cp; |
494 memcpy(cp_tmp, str, str_len); | |
495 cp_tmp += str_len; | |
496 *cp_tmp = separator; | |
497 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 498 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 499 } else { |
6197 | 500 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 501 char* cp_tmp = cp + old_len; |
502 *cp_tmp = separator; | |
503 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
504 } | |
505 } | |
506 return cp; | |
507 } | |
508 | |
509 // Scan the directory and append any jar or zip files found to path. | |
510 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
511 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
512 DIR* dir = os::opendir(directory); | |
513 if (dir == NULL) return path; | |
514 | |
515 char dir_sep[2] = { '\0', '\0' }; | |
516 size_t directory_len = strlen(directory); | |
517 const char fileSep = *os::file_separator(); | |
518 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
519 | |
520 /* Scan the directory for jars/zips, appending them to path. */ | |
521 struct dirent *entry; | |
6197 | 522 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 523 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
524 const char* name = entry->d_name; | |
525 const char* ext = name + strlen(name) - 4; | |
526 bool isJarOrZip = ext > name && | |
527 (os::file_name_strcmp(ext, ".jar") == 0 || | |
528 os::file_name_strcmp(ext, ".zip") == 0); | |
529 if (isJarOrZip) { | |
6197 | 530 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 531 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
532 path = add_to_path(path, jarpath, false); | |
6197 | 533 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 534 } |
535 } | |
6197 | 536 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 537 os::closedir(dir); |
538 return path; | |
539 } | |
540 | |
541 // Parses a memory size specification string. | |
489
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542 static bool atomull(const char *s, julong* result) { |
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543 julong n = 0; |
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544 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 545 if (args_read != 1) { |
546 return false; | |
547 } | |
548 while (*s != '\0' && isdigit(*s)) { | |
549 s++; | |
550 } | |
551 // 4705540: illegal if more characters are found after the first non-digit | |
552 if (strlen(s) > 1) { | |
553 return false; | |
554 } | |
555 switch (*s) { | |
556 case 'T': case 't': | |
557 *result = n * G * K; | |
489
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558 // Check for overflow. |
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559 if (*result/((julong)G * K) != n) return false; |
0 | 560 return true; |
561 case 'G': case 'g': | |
562 *result = n * G; | |
489
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563 if (*result/G != n) return false; |
0 | 564 return true; |
565 case 'M': case 'm': | |
566 *result = n * M; | |
489
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567 if (*result/M != n) return false; |
0 | 568 return true; |
569 case 'K': case 'k': | |
570 *result = n * K; | |
489
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571 if (*result/K != n) return false; |
0 | 572 return true; |
573 case '\0': | |
574 *result = n; | |
575 return true; | |
576 default: | |
577 return false; | |
578 } | |
579 } | |
580 | |
489
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581 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 582 if (size < min_size) return arg_too_small; |
583 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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584 if (size > max_uintx) return arg_too_big; |
0 | 585 return arg_in_range; |
586 } | |
587 | |
588 // Describe an argument out of range error | |
589 void Arguments::describe_range_error(ArgsRange errcode) { | |
590 switch(errcode) { | |
591 case arg_too_big: | |
592 jio_fprintf(defaultStream::error_stream(), | |
593 "The specified size exceeds the maximum " | |
594 "representable size.\n"); | |
595 break; | |
596 case arg_too_small: | |
597 case arg_unreadable: | |
598 case arg_in_range: | |
599 // do nothing for now | |
600 break; | |
601 default: | |
602 ShouldNotReachHere(); | |
603 } | |
604 } | |
605 | |
606 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
607 return CommandLineFlags::boolAtPut(name, &value, origin); | |
608 } | |
609 | |
610 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
611 double v; | |
612 if (sscanf(value, "%lf", &v) != 1) { | |
613 return false; | |
614 } | |
615 | |
616 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
617 return true; | |
618 } | |
619 return false; | |
620 } | |
621 | |
622 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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623 julong v; |
0 | 624 intx intx_v; |
625 bool is_neg = false; | |
489
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626 // Check the sign first since atomull() parses only unsigned values. |
0 | 627 if (*value == '-') { |
628 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
629 return false; | |
630 } | |
631 value++; | |
632 is_neg = true; | |
633 } | |
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634 if (!atomull(value, &v)) { |
0 | 635 return false; |
636 } | |
637 intx_v = (intx) v; | |
638 if (is_neg) { | |
639 intx_v = -intx_v; | |
640 } | |
641 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
642 return true; | |
643 } | |
644 uintx uintx_v = (uintx) v; | |
645 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
646 return true; | |
647 } | |
1064 | 648 uint64_t uint64_t_v = (uint64_t) v; |
649 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
650 return true; | |
651 } | |
0 | 652 return false; |
653 } | |
654 | |
655 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
656 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
657 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 658 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 659 return true; |
660 } | |
661 | |
662 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
663 const char* old_value = ""; | |
664 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
665 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
666 size_t new_len = strlen(new_value); | |
667 const char* value; | |
668 char* free_this_too = NULL; | |
669 if (old_len == 0) { | |
670 value = new_value; | |
671 } else if (new_len == 0) { | |
672 value = old_value; | |
673 } else { | |
6197 | 674 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 675 // each new setting adds another LINE to the switch: |
676 sprintf(buf, "%s\n%s", old_value, new_value); | |
677 value = buf; | |
678 free_this_too = buf; | |
679 } | |
680 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
681 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 682 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 683 if (free_this_too != NULL) { |
684 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 685 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 686 } |
687 return true; | |
688 } | |
689 | |
690 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
691 | |
692 // range of acceptable characters spelled out for portability reasons | |
693 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
694 #define BUFLEN 255 | |
695 char name[BUFLEN+1]; | |
696 char dummy; | |
697 | |
698 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
699 return set_bool_flag(name, false, origin); | |
700 } | |
701 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
702 return set_bool_flag(name, true, origin); | |
703 } | |
704 | |
705 char punct; | |
706 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
707 const char* value = strchr(arg, '=') + 1; | |
708 Flag* flag = Flag::find_flag(name, strlen(name)); | |
709 if (flag != NULL && flag->is_ccstr()) { | |
710 if (flag->ccstr_accumulates()) { | |
711 return append_to_string_flag(name, value, origin); | |
712 } else { | |
713 if (value[0] == '\0') { | |
714 value = NULL; | |
715 } | |
716 return set_string_flag(name, value, origin); | |
717 } | |
718 } | |
719 } | |
720 | |
721 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
722 const char* value = strchr(arg, '=') + 1; | |
723 // -XX:Foo:=xxx will reset the string flag to the given value. | |
724 if (value[0] == '\0') { | |
725 value = NULL; | |
726 } | |
727 return set_string_flag(name, value, origin); | |
728 } | |
729 | |
730 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
731 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
732 #define NUMBER_RANGE "[0123456789]" | |
733 char value[BUFLEN + 1]; | |
734 char value2[BUFLEN + 1]; | |
735 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
736 // Looks like a floating-point number -- try again with more lenient format string | |
737 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
738 return set_fp_numeric_flag(name, value, origin); | |
739 } | |
740 } | |
741 | |
742 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
743 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
744 return set_numeric_flag(name, value, origin); | |
745 } | |
746 | |
747 return false; | |
748 } | |
749 | |
750 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
751 assert(bldarray != NULL, "illegal argument"); | |
752 | |
753 if (arg == NULL) { | |
754 return; | |
755 } | |
756 | |
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757 int new_count = *count + 1; |
0 | 758 |
759 // expand the array and add arg to the last element | |
760 if (*bldarray == NULL) { | |
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761 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 762 } else { |
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763 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 764 } |
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765 (*bldarray)[*count] = strdup(arg); |
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766 *count = new_count; |
0 | 767 } |
768 | |
769 void Arguments::build_jvm_args(const char* arg) { | |
770 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
771 } | |
772 | |
773 void Arguments::build_jvm_flags(const char* arg) { | |
774 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
775 } | |
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776 #ifdef GRAAL |
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777 void Arguments::add_graal_arg(const char* arg) { |
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778 add_string(&_graal_args_array, &_num_graal_args, arg); |
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779 } |
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780 #endif |
0 | 781 |
782 // utility function to return a string that concatenates all | |
783 // strings in a given char** array | |
784 const char* Arguments::build_resource_string(char** args, int count) { | |
785 if (args == NULL || count == 0) { | |
786 return NULL; | |
787 } | |
788 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
789 for (int i = 1; i < count; i++) { | |
790 length += strlen(args[i]) + 1; // add 1 for a space | |
791 } | |
792 char* s = NEW_RESOURCE_ARRAY(char, length); | |
793 strcpy(s, args[0]); | |
794 for (int j = 1; j < count; j++) { | |
795 strcat(s, " "); | |
796 strcat(s, args[j]); | |
797 } | |
798 return (const char*) s; | |
799 } | |
800 | |
801 void Arguments::print_on(outputStream* st) { | |
802 st->print_cr("VM Arguments:"); | |
803 if (num_jvm_flags() > 0) { | |
804 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
805 } | |
806 if (num_jvm_args() > 0) { | |
807 st->print("jvm_args: "); print_jvm_args_on(st); | |
808 } | |
809 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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810 if (_java_class_path != NULL) { |
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811 char* path = _java_class_path->value(); |
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812 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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813 } |
0 | 814 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
815 } | |
816 | |
817 void Arguments::print_jvm_flags_on(outputStream* st) { | |
818 if (_num_jvm_flags > 0) { | |
819 for (int i=0; i < _num_jvm_flags; i++) { | |
820 st->print("%s ", _jvm_flags_array[i]); | |
821 } | |
822 st->print_cr(""); | |
823 } | |
824 } | |
825 | |
826 void Arguments::print_jvm_args_on(outputStream* st) { | |
827 if (_num_jvm_args > 0) { | |
828 for (int i=0; i < _num_jvm_args; i++) { | |
829 st->print("%s ", _jvm_args_array[i]); | |
830 } | |
831 st->print_cr(""); | |
832 } | |
833 } | |
834 | |
242 | 835 bool Arguments::process_argument(const char* arg, |
836 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
837 | |
838 JDK_Version since = JDK_Version(); | |
0 | 839 |
3250 | 840 if (parse_argument(arg, origin) || ignore_unrecognized) { |
841 return true; | |
0 | 842 } |
3250 | 843 |
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844 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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845 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 846 if (is_newly_obsolete(arg, &since)) { |
847 char version[256]; | |
848 since.to_string(version, sizeof(version)); | |
849 warning("ignoring option %s; support was removed in %s", argname, version); | |
850 return true; | |
851 } | |
852 | |
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853 // For locked flags, report a custom error message if available. |
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854 // Otherwise, report the standard unrecognized VM option. |
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855 |
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856 size_t arg_len; |
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857 const char* equal_sign = strchr(argname, '='); |
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858 if (equal_sign == NULL) { |
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859 arg_len = strlen(argname); |
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860 } else { |
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861 arg_len = equal_sign - argname; |
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862 } |
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863 |
11070 | 864 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true); |
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865 if (found_flag != NULL) { |
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866 char locked_message_buf[BUFLEN]; |
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867 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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868 if (strlen(locked_message_buf) == 0) { |
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869 if (found_flag->is_bool() && !has_plus_minus) { |
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870 jio_fprintf(defaultStream::error_stream(), |
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871 "Missing +/- setting for VM option '%s'\n", argname); |
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872 } else if (!found_flag->is_bool() && has_plus_minus) { |
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873 jio_fprintf(defaultStream::error_stream(), |
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874 "Unexpected +/- setting in VM option '%s'\n", argname); |
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875 } else { |
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876 jio_fprintf(defaultStream::error_stream(), |
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877 "Improperly specified VM option '%s'\n", argname); |
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878 } |
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879 } else { |
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880 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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881 } |
6017 | 882 } else { |
883 jio_fprintf(defaultStream::error_stream(), | |
884 "Unrecognized VM option '%s'\n", argname); | |
11070 | 885 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
886 if (fuzzy_matched != NULL) { | |
887 jio_fprintf(defaultStream::error_stream(), | |
888 "Did you mean '%s%s%s'?\n", | |
889 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
890 fuzzy_matched->name, | |
891 (fuzzy_matched->is_bool()) ? "" : "=<value>"); | |
892 } | |
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893 } |
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894 |
3250 | 895 // allow for commandline "commenting out" options like -XX:#+Verbose |
896 return arg[0] == '#'; | |
0 | 897 } |
898 | |
899 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
900 FILE* stream = fopen(file_name, "rb"); | |
901 if (stream == NULL) { | |
902 if (should_exist) { | |
903 jio_fprintf(defaultStream::error_stream(), | |
904 "Could not open settings file %s\n", file_name); | |
905 return false; | |
906 } else { | |
907 return true; | |
908 } | |
909 } | |
910 | |
911 char token[1024]; | |
912 int pos = 0; | |
913 | |
914 bool in_white_space = true; | |
915 bool in_comment = false; | |
916 bool in_quote = false; | |
917 char quote_c = 0; | |
918 bool result = true; | |
919 | |
920 int c = getc(stream); | |
6901 | 921 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 922 if (in_white_space) { |
923 if (in_comment) { | |
924 if (c == '\n') in_comment = false; | |
925 } else { | |
926 if (c == '#') in_comment = true; | |
927 else if (!isspace(c)) { | |
928 in_white_space = false; | |
929 token[pos++] = c; | |
930 } | |
931 } | |
932 } else { | |
933 if (c == '\n' || (!in_quote && isspace(c))) { | |
934 // token ends at newline, or at unquoted whitespace | |
935 // this allows a way to include spaces in string-valued options | |
936 token[pos] = '\0'; | |
937 logOption(token); | |
938 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
939 build_jvm_flags(token); | |
940 pos = 0; | |
941 in_white_space = true; | |
942 in_quote = false; | |
943 } else if (!in_quote && (c == '\'' || c == '"')) { | |
944 in_quote = true; | |
945 quote_c = c; | |
946 } else if (in_quote && (c == quote_c)) { | |
947 in_quote = false; | |
948 } else { | |
949 token[pos++] = c; | |
950 } | |
951 } | |
952 c = getc(stream); | |
953 } | |
954 if (pos > 0) { | |
955 token[pos] = '\0'; | |
956 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
957 build_jvm_flags(token); | |
958 } | |
959 fclose(stream); | |
960 return result; | |
961 } | |
962 | |
963 //============================================================================================================= | |
964 // Parsing of properties (-D) | |
965 | |
966 const char* Arguments::get_property(const char* key) { | |
967 return PropertyList_get_value(system_properties(), key); | |
968 } | |
969 | |
970 bool Arguments::add_property(const char* prop) { | |
971 const char* eq = strchr(prop, '='); | |
972 char* key; | |
973 // ns must be static--its address may be stored in a SystemProperty object. | |
974 const static char ns[1] = {0}; | |
975 char* value = (char *)ns; | |
976 | |
977 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 978 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 979 strncpy(key, prop, key_len); |
980 key[key_len] = '\0'; | |
981 | |
982 if (eq != NULL) { | |
983 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 984 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 985 strncpy(value, &prop[key_len + 1], value_len + 1); |
986 } | |
987 | |
988 if (strcmp(key, "java.compiler") == 0) { | |
989 process_java_compiler_argument(value); | |
990 FreeHeap(key); | |
991 if (eq != NULL) { | |
992 FreeHeap(value); | |
993 } | |
994 return true; | |
691 | 995 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 996 _java_command = value; |
997 | |
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998 // Record value in Arguments, but let it get passed to Java. |
691 | 999 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 1000 // launcher.pid property is private and is processed |
1001 // in process_sun_java_launcher_properties(); | |
1002 // the sun.java.launcher property is passed on to the java application | |
1003 FreeHeap(key); | |
1004 if (eq != NULL) { | |
1005 FreeHeap(value); | |
1006 } | |
1007 return true; | |
691 | 1008 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 1009 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1010 // its value without going through the property list or making a Java call. | |
1011 _java_vendor_url_bug = value; | |
691 | 1012 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1013 PropertyList_unique_add(&_system_properties, key, value, true); | |
1014 return true; | |
0 | 1015 } |
1016 // Create new property and add at the end of the list | |
1017 PropertyList_unique_add(&_system_properties, key, value); | |
1018 return true; | |
1019 } | |
1020 | |
1021 //=========================================================================================================== | |
1022 // Setting int/mixed/comp mode flags | |
1023 | |
1024 void Arguments::set_mode_flags(Mode mode) { | |
1025 // Set up default values for all flags. | |
1026 // If you add a flag to any of the branches below, | |
1027 // add a default value for it here. | |
1028 set_java_compiler(false); | |
1029 _mode = mode; | |
1030 | |
1031 // Ensure Agent_OnLoad has the correct initial values. | |
1032 // This may not be the final mode; mode may change later in onload phase. | |
1033 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1034 (char*)VM_Version::vm_info_string(), false); |
0 | 1035 |
1036 UseInterpreter = true; | |
1037 UseCompiler = true; | |
1038 UseLoopCounter = true; | |
1039 | |
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1040 #ifndef ZERO |
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1041 // Turn these off for mixed and comp. Leave them on for Zero. |
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1042 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1043 UseFastAccessorMethods = (mode == _int); |
2458
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1044 } |
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1045 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1046 UseFastEmptyMethods = (mode == _int); |
2458
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1047 } |
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1048 #endif |
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1049 |
0 | 1050 // Default values may be platform/compiler dependent - |
1051 // use the saved values | |
1052 ClipInlining = Arguments::_ClipInlining; | |
1053 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1054 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1055 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1056 | |
1057 // Change from defaults based on mode | |
1058 switch (mode) { | |
1059 default: | |
1060 ShouldNotReachHere(); | |
1061 break; | |
1062 case _int: | |
1063 UseCompiler = false; | |
1064 UseLoopCounter = false; | |
1065 AlwaysCompileLoopMethods = false; | |
1066 UseOnStackReplacement = false; | |
1067 break; | |
1068 case _mixed: | |
1069 // same as default | |
1070 break; | |
1071 case _comp: | |
1072 UseInterpreter = false; | |
1073 BackgroundCompilation = false; | |
1074 ClipInlining = false; | |
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1075 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1076 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1077 // compile a level 4 (C2) and then continue executing it. |
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1078 if (TieredCompilation) { |
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1079 Tier3InvokeNotifyFreqLog = 0; |
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1080 Tier4InvocationThreshold = 0; |
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1081 } |
0 | 1082 break; |
1083 } | |
1084 } | |
1085 | |
1086 // Conflict: required to use shared spaces (-Xshare:on), but | |
1087 // incompatible command line options were chosen. | |
1088 | |
1089 static void no_shared_spaces() { | |
1090 if (RequireSharedSpaces) { | |
1091 jio_fprintf(defaultStream::error_stream(), | |
1092 "Class data sharing is inconsistent with other specified options.\n"); | |
1093 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1094 } else { | |
1095 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1096 } | |
1097 } | |
1098 | |
1783 | 1099 void Arguments::set_tiered_flags() { |
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1100 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1101 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1102 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1103 } |
1104 if (CompilationPolicyChoice < 2) { | |
1105 vm_exit_during_initialization( | |
1106 "Incompatible compilation policy selected", NULL); | |
1107 } | |
1891
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1108 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1109 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
8043
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1110 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1111 } |
10278 | 1112 if (!UseInterpreter) { // -Xcomp |
1113 Tier3InvokeNotifyFreqLog = 0; | |
1114 Tier4InvocationThreshold = 0; | |
1115 } | |
1783 | 1116 } |
1117 | |
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1118 #if INCLUDE_ALL_GCS |
4838 | 1119 static void disable_adaptive_size_policy(const char* collector_name) { |
1120 if (UseAdaptiveSizePolicy) { | |
1121 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1122 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1123 collector_name); | |
1124 } | |
1125 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1126 } | |
1127 } | |
1128 | |
0 | 1129 void Arguments::set_parnew_gc_flags() { |
1064 | 1130 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1131 "control point invariant"); |
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1132 assert(UseParNewGC, "Error"); |
0 | 1133 |
4838 | 1134 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1135 disable_adaptive_size_policy("UseParNewGC"); | |
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1136 |
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1137 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1138 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1139 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1140 } else if (ParallelGCThreads == 0) { |
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1141 jio_fprintf(defaultStream::error_stream(), |
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1142 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1143 vm_exit(1); |
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1144 } |
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1145 |
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1146 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1147 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1148 // we set them to 1024 and 1024. |
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1149 // See CR 6362902. |
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1150 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1151 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1152 } |
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1153 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1154 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1155 } |
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1156 |
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1157 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1158 // See CR 6362902. |
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1159 if (AlwaysTenure) { |
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1160 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1161 } |
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1162 // When using compressed oops, we use local overflow stacks, |
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1163 // rather than using a global overflow list chained through |
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1164 // the klass word of the object's pre-image. |
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1165 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1166 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1167 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1168 } |
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1169 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1170 } |
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1171 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1172 } |
1173 | |
1174 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1175 // sparc/solaris for certain applications, but would gain from | |
1176 // further optimization and tuning efforts, and would almost | |
1177 // certainly gain from analysis of platform and environment. | |
1178 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1179 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1180 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1181 |
0 | 1182 // If we are using CMS, we prefer to UseParNewGC, |
1183 // unless explicitly forbidden. | |
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1184 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1185 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1186 } |
1187 | |
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1188 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1189 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1190 |
1191 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1192 // as needed. | |
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1193 if (UseParNewGC) { |
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1194 set_parnew_gc_flags(); |
0 | 1195 } |
1196 | |
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1197 size_t max_heap = align_size_down(MaxHeapSize, |
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1198 CardTableRS::ct_max_alignment_constraint()); |
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1199 |
0 | 1200 // Now make adjustments for CMS |
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1201 intx tenuring_default = (intx)6; |
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1202 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1203 |
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1204 // Preferred young gen size for "short" pauses: |
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1205 // upper bound depends on # of threads and NewRatio. |
0 | 1206 const uintx parallel_gc_threads = |
1207 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1208 const size_t preferred_max_new_size_unaligned = | |
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1209 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1210 size_t preferred_max_new_size = |
0 | 1211 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1212 | |
1213 // Unless explicitly requested otherwise, size young gen | |
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1214 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
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1215 |
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1216 // If either MaxNewSize or NewRatio is set on the command line, |
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1217 // assume the user is trying to set the size of the young gen. |
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1218 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1219 |
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1220 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1221 // NewSize was set on the command line and it is larger than |
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1222 // preferred_max_new_size. |
0 | 1223 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1224 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1225 } else { |
13
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1226 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1227 } |
1064 | 1228 if (PrintGCDetails && Verbose) { |
13
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1229 // Too early to use gclog_or_tty |
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1230 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1231 } |
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1232 |
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1233 // Code along this path potentially sets NewSize and OldSize |
1064 | 1234 if (PrintGCDetails && Verbose) { |
13
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1235 // Too early to use gclog_or_tty |
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1236 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1237 " initial_heap_size: " SIZE_FORMAT |
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1238 " max_heap: " SIZE_FORMAT, |
1064 | 1239 min_heap_size(), InitialHeapSize, max_heap); |
13
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1240 } |
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1241 size_t min_new = preferred_max_new_size; |
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1242 if (FLAG_IS_CMDLINE(NewSize)) { |
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1243 min_new = NewSize; |
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1244 } |
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1245 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1246 // Unless explicitly requested otherwise, make young gen |
1247 // at least min_new, and at most preferred_max_new_size. | |
1248 if (FLAG_IS_DEFAULT(NewSize)) { | |
13
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1249 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1250 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1251 if (PrintGCDetails && Verbose) { |
13
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1252 // Too early to use gclog_or_tty |
2368
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1253 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1254 } |
0 | 1255 } |
1256 // Unless explicitly requested otherwise, size old gen | |
2368
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1257 // so it's NewRatio x of NewSize. |
0 | 1258 if (FLAG_IS_DEFAULT(OldSize)) { |
1259 if (max_heap > NewSize) { | |
2368
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1260 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1261 if (PrintGCDetails && Verbose) { |
13
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1262 // Too early to use gclog_or_tty |
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1263 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1264 } |
0 | 1265 } |
1266 } | |
1267 } | |
1268 } | |
1269 // Unless explicitly requested otherwise, definitely | |
1270 // promote all objects surviving "tenuring_default" scavenges. | |
1271 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1272 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1273 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1274 } |
1275 // If we decided above (or user explicitly requested) | |
1276 // `promote all' (via MaxTenuringThreshold := 0), | |
1277 // prefer minuscule survivor spaces so as not to waste | |
1278 // space for (non-existent) survivors | |
1279 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1280 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1281 } |
1282 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1283 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1284 // This is done in order to make ParNew+CMS configuration to work | |
1285 // with YoungPLABSize and OldPLABSize options. | |
1286 // See CR 6362902. | |
1287 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1288 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1289 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1290 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1291 // the value (either from the command line or ergonomics) of |
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1292 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1293 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
1145
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1294 } else { |
0 | 1295 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1296 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1297 // we'll let it to take precedence. | |
1298 jio_fprintf(defaultStream::error_stream(), | |
886
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1299 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1300 " options are specified for the CMS collector." |
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1301 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1302 } |
1303 } | |
1145
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1304 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1305 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1306 // unless it was manually specified. This is because a too-low value |
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1307 // will slow down scavenges. |
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1308 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1309 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1310 } |
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1311 } |
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1312 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1313 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1314 // If either of the static initialization defaults have changed, note this |
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1315 // modification. |
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1316 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1317 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1318 } |
1284 | 1319 if (PrintGCDetails && Verbose) { |
1320 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1321 MarkStackSize / K, MarkStackSizeMax / K); | |
1322 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1323 } | |
0 | 1324 } |
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1325 #endif // INCLUDE_ALL_GCS |
0 | 1326 |
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1327 void set_object_alignment() { |
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1328 // Object alignment. |
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1329 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1330 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1331 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1332 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1333 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1334 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1335 |
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1336 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1337 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1338 |
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1339 // Oop encoding heap max |
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1340 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1341 |
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1342 #if INCLUDE_ALL_GCS |
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1343 // Set CMS global values |
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1344 CompactibleFreeListSpace::set_cms_values(); |
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1345 #endif // INCLUDE_ALL_GCS |
1571
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1346 } |
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1347 |
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1348 bool verify_object_alignment() { |
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1349 // Object alignment. |
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1350 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1351 jio_fprintf(defaultStream::error_stream(), |
1829
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1352 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1353 (int)ObjectAlignmentInBytes); |
1571
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1354 return false; |
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1355 } |
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1356 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1357 jio_fprintf(defaultStream::error_stream(), |
1829
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1358 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1359 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1360 return false; |
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1361 } |
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1362 // It does not make sense to have big object alignment |
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1363 // since a space lost due to alignment will be greater |
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1364 // then a saved space from compressed oops. |
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1365 if ((int)ObjectAlignmentInBytes > 256) { |
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1366 jio_fprintf(defaultStream::error_stream(), |
7461
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1367 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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1368 (int)ObjectAlignmentInBytes); |
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1369 return false; |
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1370 } |
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1371 // In case page size is very small. |
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1372 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1373 jio_fprintf(defaultStream::error_stream(), |
7461
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1374 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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1375 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1376 return false; |
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1377 } |
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1378 return true; |
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1379 } |
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1380 |
135
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1381 inline uintx max_heap_for_compressed_oops() { |
1963 | 1382 // Avoid sign flip. |
6725
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1383 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
1963 | 1384 return 0; |
1385 } | |
6725
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1386 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
1064 | 1387 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1388 } |
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1389 |
0 | 1390 bool Arguments::should_auto_select_low_pause_collector() { |
1391 if (UseAutoGCSelectPolicy && | |
1392 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1393 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1394 if (PrintGCDetails) { | |
1395 // Cannot use gclog_or_tty yet. | |
1396 tty->print_cr("Automatic selection of the low pause collector" | |
1397 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1398 } | |
1399 return true; | |
1400 } | |
1401 return false; | |
1402 } | |
1403 | |
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1404 void Arguments::set_use_compressed_oops() { |
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1405 #ifndef ZERO |
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1406 #ifdef _LP64 |
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1407 // MaxHeapSize is not set up properly at this point, but |
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1408 // the only value that can override MaxHeapSize if we are |
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1409 // to use UseCompressedOops is InitialHeapSize. |
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1410 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1411 |
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1412 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1413 #if !defined(COMPILER1) || defined(TIERED) |
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1414 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1415 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1416 } |
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1417 #endif |
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1418 #ifdef _WIN64 |
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1419 if (UseLargePages && UseCompressedOops) { |
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1420 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1421 // mode, when large pages are specified on windows. |
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1422 // This flag could be switched ON if narrow oop base address is set to 0, |
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1423 // see code in Universe::initialize_heap(). |
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1424 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1425 } |
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1426 #endif // _WIN64 |
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1427 } else { |
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1428 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1429 warning("Max heap size too large for Compressed Oops"); |
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1430 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1431 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1432 } |
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1433 } |
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1434 #endif // _LP64 |
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1435 #endif // ZERO |
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1436 } |
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1437 |
0 | 1438 void Arguments::set_ergonomics_flags() { |
1439 | |
4946 | 1440 if (os::is_server_class_machine()) { |
0 | 1441 // If no other collector is requested explicitly, |
1442 // let the VM select the collector based on | |
1443 // machine class and automatic selection policy. | |
1444 if (!UseSerialGC && | |
1445 !UseConcMarkSweepGC && | |
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1446 !UseG1GC && |
0 | 1447 !UseParNewGC && |
1448 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1449 if (should_auto_select_low_pause_collector()) { | |
1450 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1451 } else { | |
1452 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1453 } | |
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1454 } |
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1455 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1456 // to be disabled, which hurts interpreter performance and decreases |
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1457 // server performance. On server class machines, keep the default |
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1458 // off unless it is asked for. Future work: either add bytecode rewriting |
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1459 // at link time, or rewrite bytecodes in non-shared methods. |
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1460 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
0 | 1461 no_shared_spaces(); |
1462 } | |
1463 } | |
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1464 |
1010 | 1465 #ifndef ZERO |
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1466 #ifdef _LP64 |
8741
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1467 set_use_compressed_oops(); |
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1468 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1469 if (!UseCompressedOops) { |
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1470 if (UseCompressedKlassPointers) { |
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1471 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1472 } |
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1473 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1474 } else { |
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1475 // Turn on UseCompressedKlassPointers too |
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1476 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1477 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1478 } |
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1479 // Set the ClassMetaspaceSize to something that will not need to be |
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1480 // expanded, since it cannot be expanded. |
7982
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1481 if (UseCompressedKlassPointers) { |
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1482 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
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1483 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
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1484 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1485 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
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1486 // 100,000 classes seems like a good size, so 100M assumes around 1K |
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|
1487 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
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1488 // size per klass. Eventually, this will be parameterized because it |
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1489 // would also be useful to determine the optimal size of the |
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1490 // systemDictionary. |
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|
1491 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
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1492 } |
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1493 } |
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1494 } |
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1495 // Also checks that certain machines are slower with compressed oops |
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1496 // in vm_version initialization code. |
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1497 #endif // _LP64 |
1010 | 1498 #endif // !ZERO |
0 | 1499 } |
1500 | |
1501 void Arguments::set_parallel_gc_flags() { | |
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1502 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1503 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1504 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1505 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1506 } |
4879 | 1507 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1508 |
1509 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1510 // of the physical memory, up to a maximum of 1GB. | |
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1511 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1512 Abstract_VM_Version::parallel_worker_threads()); |
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1513 if (ParallelGCThreads == 0) { |
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1514 jio_fprintf(defaultStream::error_stream(), |
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1515 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1516 vm_exit(1); |
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1517 } |
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1518 |
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1519 |
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1520 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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1521 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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1522 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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1523 // See CR 6362902 for details. |
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1524 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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1525 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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1526 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1527 } |
7471
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1528 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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|
1529 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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1530 } |
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1531 } |
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1532 |
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1533 if (UseParallelOldGC) { |
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|
1534 // Par compact uses lower default values since they are treated as |
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1535 // minimums. These are different defaults because of the different |
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1536 // interpretation and are not ergonomically set. |
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1537 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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|
1538 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1539 } |
1540 } | |
1541 } | |
1542 | |
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1543 void Arguments::set_g1_gc_flags() { |
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1544 assert(UseG1GC, "Error"); |
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1545 #if defined(COMPILER1) || defined(GRAAL) |
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1546 FastTLABRefill = false; |
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1547 #endif |
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1548 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1549 Abstract_VM_Version::parallel_worker_threads()); |
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1550 if (ParallelGCThreads == 0) { |
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1551 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1552 Abstract_VM_Version::parallel_worker_threads()); |
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1553 } |
751 | 1554 |
7397
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1555 // MarkStackSize will be set (if it hasn't been set by the user) |
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1556 // when concurrent marking is initialized. |
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1557 // Its value will be based upon the number of parallel marking threads. |
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1558 // But we do set the maximum mark stack size here. |
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1559 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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1560 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1561 } |
1356 | 1562 |
1563 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1564 // In G1, we want the default GC overhead goal to be higher than | |
1565 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1566 // be expanded more aggressively than we would like it to. In | |
1567 // fact, even 10% seems to not be high enough in some cases | |
1568 // (especially small GC stress tests that the main thing they do | |
1569 // is allocation). We might consider increase it further. | |
1570 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1571 } | |
7397
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1572 |
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1573 if (PrintGCDetails && Verbose) { |
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1574 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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1575 MarkStackSize / K, MarkStackSizeMax / K); |
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1576 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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1577 } |
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1578 } |
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1579 |
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1580 julong Arguments::limit_by_allocatable_memory(julong limit) { |
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1581 julong max_allocatable; |
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1582 julong result = limit; |
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1583 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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1584 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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1585 } |
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1586 return result; |
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1587 } |
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1588 |
10990
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1589 void Arguments::set_heap_base_min_address() { |
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1590 if (FLAG_IS_DEFAULT(HeapBaseMinAddress) && UseG1GC && HeapBaseMinAddress < 1*G) { |
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1591 // By default HeapBaseMinAddress is 2G on all platforms except Solaris x86. |
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1592 // G1 currently needs a lot of C-heap, so on Solaris we have to give G1 |
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1593 // some extra space for the C-heap compared to other collectors. |
11066
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1594 // Use FLAG_SET_DEFAULT here rather than FLAG_SET_ERGO to make sure that |
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1595 // code that checks for default values work correctly. |
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1596 FLAG_SET_DEFAULT(HeapBaseMinAddress, 1*G); |
10990
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1597 } |
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|
1598 } |
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1599 |
1064 | 1600 void Arguments::set_heap_size() { |
1601 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1602 // Deprecated flag | |
1603 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1604 } | |
1605 | |
1606 const julong phys_mem = | |
1607 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1608 : (julong)MaxRAM; | |
1609 | |
1610 // If the maximum heap size has not been set with -Xmx, | |
1611 // then set it as fraction of the size of physical memory, | |
1612 // respecting the maximum and minimum sizes of the heap. | |
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1613 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1614 julong reasonable_max = phys_mem / MaxRAMFraction; |
1615 | |
1616 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1617 // Small physical memory, so use a minimum fraction of it for the heap | |
1618 reasonable_max = phys_mem / MinRAMFraction; | |
1619 } else { | |
1620 // Not-small physical memory, so require a heap at least | |
1621 // as large as MaxHeapSize | |
1622 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1623 } | |
1624 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1625 // Limit the heap size to ErgoHeapSizeLimit | |
1626 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
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1627 } |
1064 | 1628 if (UseCompressedOops) { |
1629 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1630 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1631 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1632 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1633 // but it should be not less than default MaxHeapSize. | |
1634 max_coop_heap -= HeapBaseMinAddress; | |
1635 } | |
1636 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1637 } |
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1638 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1639 |
1640 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1641 // An initial heap size was specified on the command line, | |
1642 // so be sure that the maximum size is consistent. Done | |
8854
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1643 // after call to limit_by_allocatable_memory because that |
1064 | 1644 // method might reduce the allocation size. |
1645 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1646 } | |
1647 | |
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1648 if (PrintGCDetails && Verbose) { |
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1649 // Cannot use gclog_or_tty yet. |
1064 | 1650 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
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1651 } |
1064 | 1652 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1653 } | |
1654 | |
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1655 // If the minimum or initial heap_size have not been set or requested to be set |
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1656 // ergonomically, set them accordingly. |
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1657 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
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|
1658 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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|
1659 |
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|
1660 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1661 |
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|
1662 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
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|
1663 |
10241
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|
1664 if (InitialHeapSize == 0) { |
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|
1665 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1666 |
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|
1667 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1668 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1669 |
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|
1670 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
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|
1671 |
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|
1672 if (PrintGCDetails && Verbose) { |
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|
1673 // Cannot use gclog_or_tty yet. |
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|
1674 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
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|
1675 } |
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|
1676 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
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1677 } |
10241
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|
1678 // If the minimum heap size has not been set (via -Xms), |
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|
1679 // synchronize with InitialHeapSize to avoid errors with the default value. |
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|
1680 if (min_heap_size() == 0) { |
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|
1681 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
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|
1682 if (PrintGCDetails && Verbose) { |
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|
1683 // Cannot use gclog_or_tty yet. |
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|
1684 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
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|
1685 } |
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|
1686 } |
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1687 } |
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1688 } |
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|
1689 |
0 | 1690 // This must be called after ergonomics because we want bytecode rewriting |
1691 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1692 void Arguments::set_bytecode_flags() { | |
1693 // Better not attempt to store into a read-only space. | |
1694 if (UseSharedSpaces) { | |
1695 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1696 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1697 } | |
1698 | |
1699 if (!RewriteBytecodes) { | |
1700 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1701 } | |
1702 } | |
1703 | |
1704 // Aggressive optimization flags -XX:+AggressiveOpts | |
1705 void Arguments::set_aggressive_opts_flags() { | |
17
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|
1706 #ifdef COMPILER2 |
10278 | 1707 if (AggressiveUnboxing) { |
1708 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1709 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1710 } else if (!EliminateAutoBox) { | |
1711 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1712 AggressiveUnboxing = false; | |
1713 } | |
1714 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1715 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1716 } else if (!DoEscapeAnalysis) { | |
1717 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1718 AggressiveUnboxing = false; | |
1719 } | |
1720 } | |
17
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|
1721 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
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|
1722 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
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|
1723 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
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|
1724 } |
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|
1725 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
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0
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|
1726 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
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|
1727 } |
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|
1728 |
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|
1729 // Feed the cache size setting into the JDK |
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|
1730 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
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diff
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|
1731 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
17
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|
1732 add_property(buffer); |
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|
1733 } |
416
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|
1734 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
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|
1735 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
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|
1736 } |
17
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|
1737 #endif |
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|
1738 |
0 | 1739 if (AggressiveOpts) { |
61 | 1740 // Sample flag setting code |
1741 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1742 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1743 // } | |
0 | 1744 } |
1745 } | |
1746 | |
1747 //=========================================================================================================== | |
1748 // Parsing of java.compiler property | |
1749 | |
1750 void Arguments::process_java_compiler_argument(char* arg) { | |
1751 // For backwards compatibility, Djava.compiler=NONE or "" | |
1752 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1753 // is also specified. | |
1754 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1755 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1756 } | |
1757 } | |
1758 | |
1759 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1760 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2243
diff
changeset
|
1761 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1762 _created_by_gamma_launcher = true; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2243
diff
changeset
|
1763 } |
0 | 1764 } |
1765 | |
1766 bool Arguments::created_by_java_launcher() { | |
1767 assert(_sun_java_launcher != NULL, "property must have value"); | |
1768 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1769 } | |
1770 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2243
diff
changeset
|
1771 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2243
diff
changeset
|
1772 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2243
diff
changeset
|
1773 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
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diff
changeset
|
1774 |
0 | 1775 //=========================================================================================================== |
1776 // Parsing of main arguments | |
1777 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
1188
diff
changeset
|
1778 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
|
1779 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1780 // 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
|
1781 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1782 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1783 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1784 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1785 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1786 "%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
|
1787 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1788 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1789 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1790 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1791 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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changeset
|
1792 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.
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2362
diff
changeset
|
1793 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1794 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1795 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1796 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1797 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1798 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
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2362
diff
changeset
|
1799 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1800 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1801 return false; |
f8c5d1bdaad4
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1681
diff
changeset
|
1802 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1803 |
0 | 1804 bool Arguments::verify_percentage(uintx value, const char* name) { |
1805 if (value <= 100) { | |
1806 return true; | |
1807 } | |
1808 jio_fprintf(defaultStream::error_stream(), | |
1809 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1810 name, value); | |
1811 return false; | |
1812 } | |
1813 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
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parents:
8847
diff
changeset
|
1814 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1815 #ifdef ASSERT |
0 | 1816 static bool verify_serial_gc_flags() { |
1817 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
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932
diff
changeset
|
1818 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
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6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
changeset
|
1819 UseParallelGC || UseParallelOldGC)); |
0 | 1820 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
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diff
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|
1821 #endif // ASSERT |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
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8847
diff
changeset
|
1822 #endif // INCLUDE_ALL_GCS |
0 | 1823 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1824 // check if do gclog rotation |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
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diff
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|
1825 // +UseGCLogFileRotation is a must, |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1826 // no gc log rotation when log file not supplied or |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1827 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
1828 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1829 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1830 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
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3349
diff
changeset
|
1831 (NumberOfGCLogFiles == 0) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1832 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
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diff
changeset
|
1833 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
|
1834 "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
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parents:
3349
diff
changeset
|
1835 "where num_of_file > 0 and num_of_size > 0\n" |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
changeset
|
1836 "GC log rotation is turned off\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
changeset
|
1837 UseGCLogFileRotation = false; |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1838 } |
2a241e764894
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3349
diff
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|
1839 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
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|
1840 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1841 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
changeset
|
1842 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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parents:
3349
diff
changeset
|
1843 jio_fprintf(defaultStream::output_stream(), |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
changeset
|
1844 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
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diff
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|
1845 } |
2a241e764894
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diff
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|
1846 } |
2a241e764894
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parents:
3349
diff
changeset
|
1847 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1848 // Check consistency of GC selection |
28372612af5e
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jmasa
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0
diff
changeset
|
1849 bool Arguments::check_gc_consistency() { |
3767
2a241e764894
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parents:
3349
diff
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|
1850 check_gclog_consistency(); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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diff
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|
1851 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1852 // 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
|
1853 // of collectors. [Note: this check is merely a user convenience; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
changeset
|
1854 // collectors over-ride each other so that only a non-conflicting |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
changeset
|
1855 // 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
|
1856 // 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
|
1857 // 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
|
1858 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1859 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1860 if (UseSerialGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1861 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1862 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1863 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1864 if (i > 1) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
changeset
|
1865 jio_fprintf(defaultStream::error_stream(), |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
changeset
|
1866 "Conflicting collector combinations in option list; " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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0
diff
changeset
|
1867 "please refer to the release notes for the combinations " |
28372612af5e
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0
diff
changeset
|
1868 "allowed\n"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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diff
changeset
|
1869 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
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|
1870 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
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|
1871 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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parents:
11083
diff
changeset
|
1872 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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parents:
11083
diff
changeset
|
1873 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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parents:
11083
diff
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|
1874 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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diff
changeset
|
1875 status = false; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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diff
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|
1876 } |
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6362677: Change parallel GC collector default number of parallel GC threads.
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parents:
0
diff
changeset
|
1877 return status; |
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parents:
0
diff
changeset
|
1878 } |
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6362677: Change parallel GC collector default number of parallel GC threads.
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parents:
0
diff
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|
1879 |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
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parents:
7451
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changeset
|
1880 void Arguments::check_deprecated_gcs() { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
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diff
changeset
|
1881 if (UseConcMarkSweepGC && !UseParNewGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
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diff
changeset
|
1882 warning("Using the DefNew young collector with the CMS collector is deprecated " |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
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diff
changeset
|
1883 "and will likely be removed in a future release"); |
e0ab18eafbde
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diff
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|
1884 } |
e0ab18eafbde
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|
1885 |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
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|
1886 if (UseParNewGC && !UseConcMarkSweepGC) { |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
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7451
diff
changeset
|
1887 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
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7451
diff
changeset
|
1888 // set up UseSerialGC properly, so that can't be used in the check here. |
e0ab18eafbde
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7451
diff
changeset
|
1889 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
e0ab18eafbde
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diff
changeset
|
1890 "and will likely be removed in a future release"); |
e0ab18eafbde
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|
1891 } |
7453 | 1892 |
1893 if (CMSIncrementalMode) { | |
1894 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1895 } | |
7452
e0ab18eafbde
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|
1896 } |
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|
1897 |
8734 | 1898 void Arguments::check_deprecated_gc_flags() { |
1899 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1900 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1901 "and will likely be removed in future release"); | |
1902 } | |
1903 } | |
1904 | |
1744
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1905 // Check stack pages settings |
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1906 bool Arguments::check_stack_pages() |
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1907 { |
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1908 bool status = true; |
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1909 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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1910 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
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1911 // greater stack shadow pages can't generate instruction to bang stack |
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1912 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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1913 return status; |
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1914 } |
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1915 |
0 | 1916 // Check the consistency of vm_init_args |
1917 bool Arguments::check_vm_args_consistency() { | |
1918 // Method for adding checks for flag consistency. | |
1919 // The intent is to warn the user of all possible conflicts, | |
1920 // before returning an error. | |
1921 // Note: Needs platform-dependent factoring. | |
1922 bool status = true; | |
1923 | |
1924 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1925 // builds so the cost of stack banging can be measured. | |
1926 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1927 if (!UseBoundThreads && !UseStackBanging) { | |
1928 jio_fprintf(defaultStream::error_stream(), | |
1929 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1930 | |
1931 status = false; | |
1932 } | |
1933 #endif | |
1934 | |
1935 if (TLABRefillWasteFraction == 0) { | |
1936 jio_fprintf(defaultStream::error_stream(), | |
1937 "TLABRefillWasteFraction should be a denominator, " | |
1938 "not " SIZE_FORMAT "\n", | |
1939 TLABRefillWasteFraction); | |
1940 status = false; | |
1941 } | |
1942 | |
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1943 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 1944 "AdaptiveSizePolicyWeight"); |
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1945 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1946 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1947 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1948 |
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1949 // Divide by bucket size to prevent a large size from causing rollover when |
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1950 // calculating amount of memory needed to be allocated for the String table. |
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1951 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
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1952 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1953 |
0 | 1954 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1955 jio_fprintf(defaultStream::error_stream(), | |
1956 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1957 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1958 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1959 status = false; | |
1960 } | |
1961 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1962 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1963 | |
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1964 // Min/MaxMetaspaceFreeRatio |
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1965 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1966 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1967 |
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1968 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1969 jio_fprintf(defaultStream::error_stream(), |
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1970 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1971 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1972 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1973 MinMetaspaceFreeRatio, |
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1974 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1975 MaxMetaspaceFreeRatio); |
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1976 status = false; |
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1977 } |
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1978 |
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1979 // Trying to keep 100% free is not practical |
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1980 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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1981 |
0 | 1982 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
1983 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1984 } | |
1985 | |
483
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1986 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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1987 // Settings to encourage splitting. |
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1988 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 1989 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
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1990 } |
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1991 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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1992 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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1993 } |
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1994 } |
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1995 |
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1996 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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1997 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1998 if (GCTimeLimit == 100) { |
1999 // Turn off gc-overhead-limit-exceeded checks | |
2000 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
2001 } | |
2002 | |
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2003 status = status && check_gc_consistency(); |
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2004 status = status && check_stack_pages(); |
0 | 2005 |
2006 if (CMSIncrementalMode) { | |
2007 if (!UseConcMarkSweepGC) { | |
2008 jio_fprintf(defaultStream::error_stream(), | |
2009 "error: invalid argument combination.\n" | |
2010 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2011 "selected in order\nto use CMSIncrementalMode.\n"); | |
2012 status = false; | |
2013 } else { | |
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2014 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2015 "CMSIncrementalDutyCycle"); |
10
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2016 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2017 "CMSIncrementalDutyCycleMin"); |
10
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2018 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2019 "CMSIncrementalSafetyFactor"); |
10
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2020 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2021 "CMSIncrementalOffset"); |
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|
2022 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2023 "CMSExpAvgFactor"); |
2024 // If it was not set on the command line, set | |
2025 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2026 if (CMSInitiatingOccupancyFraction < 0) { | |
2027 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2028 } | |
2029 } | |
2030 } | |
2031 | |
2032 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2033 // insists that we hold the requisite locks so that the iteration is | |
2034 // MT-safe. For the verification at start-up and shut-down, we don't | |
2035 // yet have a good way of acquiring and releasing these locks, | |
2036 // which are not visible at the CollectedHeap level. We want to | |
2037 // be able to acquire these locks and then do the iteration rather | |
2038 // than just disable the lock verification. This will be fixed under | |
2039 // bug 4788986. | |
2040 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
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|
2041 if (VerifyDuringStartup) { |
0 | 2042 warning("Heap verification at start-up disabled " |
2043 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
9071
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2044 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2045 } |
9071
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|
2046 |
0 | 2047 if (VerifyBeforeExit) { |
2048 warning("Heap verification at shutdown disabled " | |
2049 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2050 VerifyBeforeExit = false; // Disable verification at shutdown | |
2051 } | |
2052 } | |
2053 | |
2054 // Note: only executed in non-PRODUCT mode | |
2055 if (!UseAsyncConcMarkSweepGC && | |
2056 (ExplicitGCInvokesConcurrent || | |
2057 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2058 jio_fprintf(defaultStream::error_stream(), | |
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|
2059 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2060 " with -UseAsyncConcMarkSweepGC"); |
2061 status = false; | |
2062 } | |
2063 | |
2366
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|
2064 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
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|
2065 |
8001
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2066 #if INCLUDE_ALL_GCS |
1283
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2067 if (UseG1GC) { |
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|
2068 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
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|
2069 "InitiatingHeapOccupancyPercent"); |
2174
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|
2070 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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|
2071 "G1RefProcDrainInterval"); |
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2072 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
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2073 "G1ConcMarkStepDurationMillis"); |
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2074 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
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2075 "G1ConcRSHotCardLimit"); |
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2076 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
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|
2077 "G1ConcRSLogCacheSize"); |
1283
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2078 } |
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2079 if (UseConcMarkSweepGC) { |
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2080 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
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2081 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
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2082 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
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2083 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
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2084 |
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2085 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
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2086 |
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2087 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
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2088 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
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2089 status = status && verify_interval(CMS_FLSWeight, 0, 100, "CMS_FLSWeight"); |
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2090 |
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2091 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
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2092 |
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2093 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
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|
2094 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
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|
2095 |
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|
2096 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
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|
2097 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2098 status = status && verify_interval(CMSPrecleanNumerator, 0, CMSPrecleanDenominator - 1, "CMSPrecleanNumerator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2099 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2100 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
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 status = status && verify_min_value(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2103 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2104 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2105 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2106 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2107 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2108 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2109 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2110 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2111 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2112 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2113 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2114 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2115 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2116 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2117 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2118 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2119 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2120 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2121 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2122 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2123 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2124 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2125 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2126 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2127 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2128 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2129 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2130 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2131 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2132 // 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
|
2133 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2134 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2135 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2136 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2137 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
|
2138 |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2139 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
|
2140 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2141 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2142 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2143 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2144 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
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(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
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(HeapSizePerGCThread, (uintx) os::vm_page_size(), "HeapSizePerGCThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2149 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2150 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2151 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2152 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2153 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2154 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2155 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2156 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2157 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2158 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2159 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2160 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2161 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2162 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2163 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2164 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2165 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2166 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2167 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2168 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2169 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2170 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2171 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2172 // 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
|
2173 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2174 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2175 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2176 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2177 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2178 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2179 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2180 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2181 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2182 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2183 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2184 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2185 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2186 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2187 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2188 " 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
|
2189 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2190 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2191 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2192 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2193 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2194 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2195 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2196 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2197 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
|
2198 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2199 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2200 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2201 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2202 } |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2203 #ifdef GRAAL |
10409 | 2204 if (UseG1GC) { |
2205 if (IgnoreUnrecognizedVMOptions) { | |
2206 warning("UseG1GC is still experimental in Graal, use SerialGC instead "); | |
2207 FLAG_SET_CMDLINE(bool, UseG1GC, true); | |
2208 } else { | |
2209 warning("UseG1GC is still experimental in Graal, use SerialGC instead "); | |
2210 status = true; | |
2211 } | |
10864
6457dc4227e3
Add compressed klass pointers in gate
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
10739
diff
changeset
|
2212 } else { |
10409 | 2213 // This prevents the flag being set to true by set_ergonomics_flags() |
2214 FLAG_SET_CMDLINE(bool, UseG1GC, false); | |
10864
6457dc4227e3
Add compressed klass pointers in gate
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
10739
diff
changeset
|
2215 } |
10409 | 2216 |
2217 if (!ScavengeRootsInCode) { | |
2218 warning("forcing ScavengeRootsInCode non-zero because Graal is enabled"); | |
2219 ScavengeRootsInCode = 1; | |
2220 } | |
2221 #endif | |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2222 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2223 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2224 // 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
|
2225 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2226 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2227 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2228 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2229 "ContendedPaddingWidth=" INTX_FORMAT " must be the between %d and %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2230 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2231 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2232 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2233 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2234 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2235 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2236 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2237 jio_fprintf(defaultStream::error_stream(), |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2238 "ContendedPaddingWidth=" INTX_FORMAT " must be the multiple of %d\n", |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2239 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2240 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2241 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2242 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2243 // 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
|
2244 // Template Interpreter code is approximately 3X larger in debug builds. |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2245 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2246 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2247 jio_fprintf(defaultStream::error_stream(), |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2248 "Invalid InitialCodeCacheSize=%dK. Must be at least %dK.\n", InitialCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2249 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2250 status = false; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2251 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2252 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2253 "Invalid ReservedCodeCacheSize: %dK. Must be at least InitialCodeCacheSize=%dK.\n", |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2254 ReservedCodeCacheSize/K, InitialCodeCacheSize/K); |
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2255 status = false; |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2256 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2257 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2258 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2259 min_code_cache_size/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2260 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2261 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2262 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2263 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2264 "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
|
2265 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2266 status = false; |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2267 } |
11173
6b0fd0964b87
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2268 |
0 | 2269 return status; |
2270 } | |
2271 | |
2272 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2273 const char* option_type) { | |
2274 if (ignore) return false; | |
2275 | |
2276 const char* spacer = " "; | |
2277 if (option_type == NULL) { | |
2278 option_type = ++spacer; // Set both to the empty string. | |
2279 } | |
2280 | |
2281 if (os::obsolete_option(option)) { | |
2282 jio_fprintf(defaultStream::error_stream(), | |
2283 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2284 option->optionString); | |
2285 return false; | |
2286 } else { | |
2287 jio_fprintf(defaultStream::error_stream(), | |
2288 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2289 option->optionString); | |
2290 return true; | |
2291 } | |
2292 } | |
2293 | |
2294 static const char* user_assertion_options[] = { | |
2295 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2296 }; | |
2297 | |
2298 static const char* system_assertion_options[] = { | |
2299 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2300 }; | |
2301 | |
2302 // Return true if any of the strings in null-terminated array 'names' matches. | |
2303 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2304 // the option must match exactly. | |
2305 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2306 bool tail_allowed) { | |
2307 for (/* empty */; *names != NULL; ++names) { | |
2308 if (match_option(option, *names, tail)) { | |
2309 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2310 return true; | |
2311 } | |
2312 } | |
2313 } | |
2314 return false; | |
2315 } | |
2316 | |
1284 | 2317 bool Arguments::parse_uintx(const char* value, |
2318 uintx* uintx_arg, | |
2319 uintx min_size) { | |
2320 | |
2321 // Check the sign first since atomull() parses only unsigned values. | |
2322 bool value_is_positive = !(*value == '-'); | |
2323 | |
2324 if (value_is_positive) { | |
2325 julong n; | |
2326 bool good_return = atomull(value, &n); | |
2327 if (good_return) { | |
2328 bool above_minimum = n >= min_size; | |
2329 bool value_is_too_large = n > max_uintx; | |
2330 | |
2331 if (above_minimum && !value_is_too_large) { | |
2332 *uintx_arg = n; | |
2333 return true; | |
2334 } | |
2335 } | |
2336 } | |
2337 return false; | |
2338 } | |
2339 | |
0 | 2340 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2341 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2342 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2343 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2344 return check_memory_size(*long_arg, min_size); |
2345 } | |
2346 | |
2347 // Parse JavaVMInitArgs structure | |
2348 | |
2349 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2350 // For components of the system classpath. | |
2351 SysClassPath scp(Arguments::get_sysclasspath()); | |
2352 bool scp_assembly_required = false; | |
2353 | |
2354 // Save default settings for some mode flags | |
2355 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2356 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2357 Arguments::_ClipInlining = ClipInlining; | |
2358 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2359 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2360 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2361 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2362 |
0 | 2363 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2364 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2365 if (result != JNI_OK) { | |
2366 return result; | |
2367 } | |
2368 | |
2369 // Parse JavaVMInitArgs structure passed in | |
2370 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2371 if (result != JNI_OK) { | |
2372 return result; | |
2373 } | |
2374 | |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2375 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2376 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2377 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2378 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2379 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2380 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2381 strlen(altclasses_jar); |
6197 | 2382 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2383 strcpy(altclasses_path, get_meta_index_dir()); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2384 strcat(altclasses_path, altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2385 scp.add_suffix_to_prefix(altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2386 scp_assembly_required = true; |
6197 | 2387 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2388 } |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2389 |
0 | 2390 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2391 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2392 if (result != JNI_OK) { | |
2393 return result; | |
2394 } | |
2395 | |
2396 // Do final processing now that all arguments have been parsed | |
2397 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2398 if (result != JNI_OK) { | |
2399 return result; | |
2400 } | |
2401 | |
2402 return JNI_OK; | |
2403 } | |
2404 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2405 // Checks if name in command-line argument -agent{lib,path}:name[=options] |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2406 // represents a valid HPROF of JDWP agent. is_path==true denotes that we |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2407 // are dealing with -agentpath (case where name is a path), otherwise with |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2408 // -agentlib |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2409 bool valid_hprof_or_jdwp_agent(char *name, bool is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2410 char *_name; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2411 const char *_hprof = "hprof", *_jdwp = "jdwp"; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2412 size_t _len_hprof, _len_jdwp, _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2413 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2414 if (is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2415 if ((_name = strrchr(name, (int) *os::file_separator())) == NULL) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2416 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2417 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2418 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2419 _name++; // skip past last path separator |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2420 _len_prefix = strlen(JNI_LIB_PREFIX); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2421 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2422 if (strncmp(_name, JNI_LIB_PREFIX, _len_prefix) != 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2423 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2424 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2425 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2426 _name += _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2427 _len_hprof = strlen(_hprof); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2428 _len_jdwp = strlen(_jdwp); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2429 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2430 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2431 _name += _len_hprof; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2432 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2433 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2434 _name += _len_jdwp; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2435 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2436 else { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2437 return false; |
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diff
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|
2438 } |
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diff
changeset
|
2439 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2440 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2441 return false; |
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diff
changeset
|
2442 } |
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diff
changeset
|
2443 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2444 return true; |
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diff
changeset
|
2445 } |
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diff
changeset
|
2446 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2447 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2448 return true; |
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9077
diff
changeset
|
2449 } |
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diff
changeset
|
2450 |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
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diff
changeset
|
2451 return false; |
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diff
changeset
|
2452 } |
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|
2453 |
0 | 2454 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2455 SysClassPath* scp_p, | |
2456 bool* scp_assembly_required_p, | |
2457 FlagValueOrigin origin) { | |
2458 // Remaining part of option string | |
2459 const char* tail; | |
2460 | |
2461 // iterate over arguments | |
2462 for (int index = 0; index < args->nOptions; index++) { | |
2463 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2464 | |
2465 const JavaVMOption* option = args->options + index; | |
2466 | |
2467 if (!match_option(option, "-Djava.class.path", &tail) && | |
2468 !match_option(option, "-Dsun.java.command", &tail) && | |
2469 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2470 | |
2471 // add all jvm options to the jvm_args string. This string | |
2472 // is used later to set the java.vm.args PerfData string constant. | |
2473 // the -Djava.class.path and the -Dsun.java.command options are | |
2474 // omitted from jvm_args string as each have their own PerfData | |
2475 // string constant object. | |
2476 build_jvm_args(option->optionString); | |
2477 } | |
2478 | |
2479 // -verbose:[class/gc/jni] | |
2480 if (match_option(option, "-verbose", &tail)) { | |
2481 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2482 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2483 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2484 } else if (!strcmp(tail, ":gc")) { | |
2485 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2486 } else if (!strcmp(tail, ":jni")) { | |
2487 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2488 } | |
2489 // -da / -ea / -disableassertions / -enableassertions | |
2490 // These accept an optional class/package name separated by a colon, e.g., | |
2491 // -da:java.lang.Thread. | |
2492 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2493 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2494 if (*tail == '\0') { | |
2495 JavaAssertions::setUserClassDefault(enable); | |
2496 } else { | |
2497 assert(*tail == ':', "bogus match by match_option()"); | |
2498 JavaAssertions::addOption(tail + 1, enable); | |
2499 } | |
2500 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2501 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2502 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2503 JavaAssertions::setSystemClassDefault(enable); | |
2504 // -bootclasspath: | |
2505 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2506 scp_p->reset_path(tail); | |
2507 *scp_assembly_required_p = true; | |
2508 // -bootclasspath/a: | |
2509 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2510 scp_p->add_suffix(tail); | |
2511 *scp_assembly_required_p = true; | |
2512 // -bootclasspath/p: | |
2513 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2514 scp_p->add_prefix(tail); | |
2515 *scp_assembly_required_p = true; | |
2516 // -Xrun | |
2517 } else if (match_option(option, "-Xrun", &tail)) { | |
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2518 if (tail != NULL) { |
0 | 2519 const char* pos = strchr(tail, ':'); |
2520 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2521 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2522 name[len] = '\0'; |
2523 | |
2524 char *options = NULL; | |
2525 if(pos != NULL) { | |
2526 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2527 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2528 } |
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|
2529 #if !INCLUDE_JVMTI |
0 | 2530 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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|
2531 jio_fprintf(defaultStream::error_stream(), |
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2532 "Profiling and debugging agents are not supported in this VM\n"); |
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8105
diff
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|
2533 return JNI_ERR; |
fad90b102190
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8105
diff
changeset
|
2534 } |
6854
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6818
diff
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|
2535 #endif // !INCLUDE_JVMTI |
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fad90b102190
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jprovino
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8105
diff
changeset
|
2536 add_init_library(name, options); |
0 | 2537 } |
2538 // -agentlib and -agentpath | |
2539 } else if (match_option(option, "-agentlib:", &tail) || | |
2540 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2541 if(tail != NULL) { | |
2542 const char* pos = strchr(tail, '='); | |
2543 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2544 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2545 name[len] = '\0'; |
2546 | |
2547 char *options = NULL; | |
2548 if(pos != NULL) { | |
6197 | 2549 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2550 } |
6854
fb19af007ffc
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6818
diff
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|
2551 #if !INCLUDE_JVMTI |
10170
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9077
diff
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|
2552 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
8720
fad90b102190
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jprovino
parents:
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diff
changeset
|
2553 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
|
2554 "Profiling and debugging agents 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
|
2555 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2556 } |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
changeset
|
2557 #endif // !INCLUDE_JVMTI |
0 | 2558 add_init_agent(name, options, is_absolute_path); |
2559 } | |
2560 // -javaagent | |
2561 } else if (match_option(option, "-javaagent:", &tail)) { | |
6854
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7189254: Change makefiles for more flexibility to override defaults
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6818
diff
changeset
|
2562 #if !INCLUDE_JVMTI |
8720
fad90b102190
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jprovino
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diff
changeset
|
2563 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
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diff
changeset
|
2564 "Instrumentation agents are not supported in this VM\n"); |
fad90b102190
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jprovino
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8105
diff
changeset
|
2565 return JNI_ERR; |
6854
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6818
diff
changeset
|
2566 #else |
0 | 2567 if(tail != NULL) { |
6197 | 2568 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2569 add_init_agent("instrument", options, false); |
2570 } | |
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6818
diff
changeset
|
2571 #endif // !INCLUDE_JVMTI |
0 | 2572 // -Xnoclassgc |
2573 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2574 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2575 // -Xincgc: i-CMS | |
2576 } else if (match_option(option, "-Xincgc", &tail)) { | |
2577 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2578 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2579 // -Xnoincgc: no i-CMS | |
2580 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2581 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2582 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2583 // -Xconcgc | |
2584 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2585 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2586 // -Xnoconcgc | |
2587 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2588 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2589 // -Xbatch | |
2590 } else if (match_option(option, "-Xbatch", &tail)) { | |
2591 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2592 // -Xmn for compatibility with other JVM vendors | |
2593 } else if (match_option(option, "-Xmn", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2594 julong long_initial_eden_size = 0; |
0 | 2595 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2596 if (errcode != arg_in_range) { | |
2597 jio_fprintf(defaultStream::error_stream(), | |
2598 "Invalid initial eden size: %s\n", option->optionString); | |
2599 describe_range_error(errcode); | |
2600 return JNI_EINVAL; | |
2601 } | |
1064 | 2602 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2603 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2604 // -Xms |
2605 } else if (match_option(option, "-Xms", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2606 julong long_initial_heap_size = 0; |
10241
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
parents:
10240
diff
changeset
|
2607 // an initial heap size of 0 means automatically determine |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
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10240
diff
changeset
|
2608 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2609 if (errcode != arg_in_range) { |
2610 jio_fprintf(defaultStream::error_stream(), | |
2611 "Invalid initial heap size: %s\n", option->optionString); | |
2612 describe_range_error(errcode); | |
2613 return JNI_EINVAL; | |
2614 } | |
1064 | 2615 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2616 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2617 set_min_heap_size(InitialHeapSize); |
0 | 2618 // -Xmx |
10241
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8006088: Incompatible heap size flags accepted by VM
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10240
diff
changeset
|
2619 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
489
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483
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|
2620 julong long_max_heap_size = 0; |
0 | 2621 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2622 if (errcode != arg_in_range) { | |
2623 jio_fprintf(defaultStream::error_stream(), | |
2624 "Invalid maximum heap size: %s\n", option->optionString); | |
2625 describe_range_error(errcode); | |
2626 return JNI_EINVAL; | |
2627 } | |
1064 | 2628 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2629 // Xmaxf |
2630 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2631 int maxf = (int)(atof(tail) * 100); | |
2632 if (maxf < 0 || maxf > 100) { | |
2633 jio_fprintf(defaultStream::error_stream(), | |
2634 "Bad max heap free percentage size: %s\n", | |
2635 option->optionString); | |
2636 return JNI_EINVAL; | |
2637 } else { | |
2638 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2639 } | |
2640 // Xminf | |
2641 } else if (match_option(option, "-Xminf", &tail)) { | |
2642 int minf = (int)(atof(tail) * 100); | |
2643 if (minf < 0 || minf > 100) { | |
2644 jio_fprintf(defaultStream::error_stream(), | |
2645 "Bad min heap free percentage size: %s\n", | |
2646 option->optionString); | |
2647 return JNI_EINVAL; | |
2648 } else { | |
2649 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2650 } | |
2651 // -Xss | |
2652 } else if (match_option(option, "-Xss", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2653 julong long_ThreadStackSize = 0; |
0 | 2654 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2655 if (errcode != arg_in_range) { | |
2656 jio_fprintf(defaultStream::error_stream(), | |
2657 "Invalid thread stack size: %s\n", option->optionString); | |
2658 describe_range_error(errcode); | |
2659 return JNI_EINVAL; | |
2660 } | |
2661 // Internally track ThreadStackSize in units of 1024 bytes. | |
2662 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2663 round_to((int)long_ThreadStackSize, K) / K); | |
2664 // -Xoss | |
2665 } else if (match_option(option, "-Xoss", &tail)) { | |
2666 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2667 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2668 julong long_CodeCacheExpansionSize = 0; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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11006
diff
changeset
|
2669 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2670 if (errcode != arg_in_range) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2671 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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diff
changeset
|
2672 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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diff
changeset
|
2673 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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diff
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|
2674 return JNI_EINVAL; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
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|
2675 } |
738e04fb1232
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anoll
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diff
changeset
|
2676 FLAG_SET_CMDLINE(uintx, CodeCacheExpansionSize, (uintx)long_CodeCacheExpansionSize); |
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2677 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
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diff
changeset
|
2678 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
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swamyv
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483
diff
changeset
|
2679 julong long_ReservedCodeCacheSize = 0; |
11079
738e04fb1232
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anoll
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diff
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|
2680 |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2681 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2682 if (errcode != arg_in_range) { |
2683 jio_fprintf(defaultStream::error_stream(), | |
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anoll
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diff
changeset
|
2684 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2685 return JNI_EINVAL; |
2686 } | |
2687 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
10319
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
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10294
diff
changeset
|
2688 //-XX:IncreaseFirstTierCompileThresholdAt= |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
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10294
diff
changeset
|
2689 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2690 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
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2691 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
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2692 jio_fprintf(defaultStream::error_stream(), |
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2693 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
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2694 option->optionString); |
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2695 return JNI_EINVAL; |
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|
2696 } |
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2697 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2698 // -green |
2699 } else if (match_option(option, "-green", &tail)) { | |
2700 jio_fprintf(defaultStream::error_stream(), | |
2701 "Green threads support not available\n"); | |
2702 return JNI_EINVAL; | |
2703 // -native | |
2704 } else if (match_option(option, "-native", &tail)) { | |
2705 // HotSpot always uses native threads, ignore silently for compatibility | |
2706 // -Xsqnopause | |
2707 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2708 // EVM option, ignore silently for compatibility | |
2709 // -Xrs | |
2710 } else if (match_option(option, "-Xrs", &tail)) { | |
2711 // Classic/EVM option, new functionality | |
2712 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2713 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2714 // change default internal VM signals used - lower case for back compat | |
2715 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2716 // -Xoptimize | |
2717 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2718 // EVM option, ignore silently for compatibility | |
2719 // -Xprof | |
2720 } else if (match_option(option, "-Xprof", &tail)) { | |
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2721 #if INCLUDE_FPROF |
0 | 2722 _has_profile = true; |
6854
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2723 #else // INCLUDE_FPROF |
8720
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2724 jio_fprintf(defaultStream::error_stream(), |
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2725 "Flat profiling is not supported in this VM.\n"); |
fad90b102190
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2726 return JNI_ERR; |
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|
2727 #endif // INCLUDE_FPROF |
0 | 2728 // -Xconcurrentio |
2729 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2730 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2731 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2732 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2733 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2734 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2735 | |
2736 // -Xinternalversion | |
2737 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2738 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2739 VM_Version::internal_vm_info_string()); | |
2740 vm_exit(0); | |
2741 #ifndef PRODUCT | |
2742 // -Xprintflags | |
2743 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2744 CommandLineFlags::printFlags(tty, false); |
0 | 2745 vm_exit(0); |
2746 #endif | |
2747 // -D | |
2748 } else if (match_option(option, "-D", &tail)) { | |
2749 if (!add_property(tail)) { | |
2750 return JNI_ENOMEM; | |
2751 } | |
2752 // Out of the box management support | |
2753 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
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|
2754 #if INCLUDE_MANAGEMENT |
0 | 2755 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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2756 #else |
8720
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2757 jio_fprintf(defaultStream::output_stream(), |
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2758 "-Dcom.sun.management is not supported in this VM.\n"); |
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2759 return JNI_ERR; |
8081
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2760 #endif |
0 | 2761 } |
2762 // -Xint | |
2763 } else if (match_option(option, "-Xint", &tail)) { | |
2764 set_mode_flags(_int); | |
2765 // -Xmixed | |
2766 } else if (match_option(option, "-Xmixed", &tail)) { | |
2767 set_mode_flags(_mixed); | |
2768 // -Xcomp | |
2769 } else if (match_option(option, "-Xcomp", &tail)) { | |
2770 // for testing the compiler; turn off all flags that inhibit compilation | |
2771 set_mode_flags(_comp); | |
2772 // -Xshare:dump | |
2773 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2774 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2775 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2776 // -Xshare:on | |
2777 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2778 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2779 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2780 // -Xshare:auto | |
2781 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2782 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2783 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2784 // -Xshare:off | |
2785 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2786 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2787 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2788 // -Xverify | |
2789 } else if (match_option(option, "-Xverify", &tail)) { | |
2790 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2791 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2792 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2793 } else if (strcmp(tail, ":remote") == 0) { | |
2794 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2795 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2796 } else if (strcmp(tail, ":none") == 0) { | |
2797 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2798 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2799 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2800 return JNI_EINVAL; | |
2801 } | |
2802 // -Xdebug | |
2803 } else if (match_option(option, "-Xdebug", &tail)) { | |
2804 // note this flag has been used, then ignore | |
2805 set_xdebug_mode(true); | |
2806 // -Xnoagent | |
2807 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2808 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2809 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2810 // Bind user level threads to kernel threads (Solaris only) | |
2811 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2812 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2813 // Redirect GC output to the file. -Xloggc:<filename> | |
2814 // ostream_init_log(), when called will use this filename | |
2815 // to initialize a fileStream. | |
2816 _gc_log_filename = strdup(tail); | |
2817 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2818 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2819 | |
2820 // JNI hooks | |
2821 } else if (match_option(option, "-Xcheck", &tail)) { | |
2822 if (!strcmp(tail, ":jni")) { | |
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2823 #if !INCLUDE_JNI_CHECK |
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|
2824 warning("JNI CHECKING is not supported in this VM"); |
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|
2825 #else |
0 | 2826 CheckJNICalls = true; |
6854
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|
2827 #endif // INCLUDE_JNI_CHECK |
0 | 2828 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2829 "check")) { | |
2830 return JNI_EINVAL; | |
2831 } | |
2832 } else if (match_option(option, "vfprintf", &tail)) { | |
2833 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2834 } else if (match_option(option, "exit", &tail)) { | |
2835 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2836 } else if (match_option(option, "abort", &tail)) { | |
2837 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2838 // -XX:+AggressiveHeap | |
2839 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2840 | |
2841 // This option inspects the machine and attempts to set various | |
2842 // parameters to be optimal for long-running, memory allocation | |
2843 // intensive jobs. It is intended for machines with large | |
2844 // amounts of cpu and memory. | |
2845 | |
2846 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2847 // VM, but we may not be able to represent the total physical memory | |
2848 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2849 // Thus, we need to make sure we're using a julong for intermediate | |
2850 // calculations. | |
2851 julong initHeapSize; | |
2852 julong total_memory = os::physical_memory(); | |
2853 | |
2854 if (total_memory < (julong)256*M) { | |
2855 jio_fprintf(defaultStream::error_stream(), | |
2856 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2857 vm_exit(1); | |
2858 } | |
2859 | |
2860 // The heap size is half of available memory, or (at most) | |
2861 // all of possible memory less 160mb (leaving room for the OS | |
2862 // when using ISM). This is the maximum; because adaptive sizing | |
2863 // is turned on below, the actual space used may be smaller. | |
2864 | |
2865 initHeapSize = MIN2(total_memory / (julong)2, | |
2866 total_memory - (julong)160*M); | |
2867 | |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
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|
2868 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2869 |
2870 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2871 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2872 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2873 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2874 set_min_heap_size(initHeapSize); |
0 | 2875 } |
2876 if (FLAG_IS_DEFAULT(NewSize)) { | |
2877 // Make the young generation 3/8ths of the total heap. | |
2878 FLAG_SET_CMDLINE(uintx, NewSize, | |
2879 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2880 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2881 } | |
2882 | |
6917
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|
2883 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2884 FLAG_SET_DEFAULT(UseLargePages, true); |
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7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
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|
2885 #endif |
0 | 2886 |
2887 // Increase some data structure sizes for efficiency | |
2888 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2889 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2890 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2891 | |
2892 // See the OldPLABSize comment below, but replace 'after promotion' | |
2893 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2894 // space per-gc-thread buffers. The default is 4kw. | |
2895 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2896 | |
2897 // OldPLABSize is the size of the buffers in the old gen that | |
2898 // UseParallelGC uses to promote live data that doesn't fit in the | |
2899 // survivor spaces. At any given time, there's one for each gc thread. | |
2900 // The default size is 1kw. These buffers are rarely used, since the | |
2901 // survivor spaces are usually big enough. For specjbb, however, there | |
2902 // are occasions when there's lots of live data in the young gen | |
2903 // and we end up promoting some of it. We don't have a definite | |
2904 // explanation for why bumping OldPLABSize helps, but the theory | |
2905 // is that a bigger PLAB results in retaining something like the | |
2906 // original allocation order after promotion, which improves mutator | |
2907 // locality. A minor effect may be that larger PLABs reduce the | |
2908 // number of PLAB allocation events during gc. The value of 8kw | |
2909 // was arrived at by experimenting with specjbb. | |
2910 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2911 | |
2912 // Enable parallel GC and adaptive generation sizing | |
2913 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
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diff
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|
2914 FLAG_SET_DEFAULT(ParallelGCThreads, |
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6362677: Change parallel GC collector default number of parallel GC threads.
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|
2915 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2916 |
2917 // Encourage steady state memory management | |
2918 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2919 | |
2920 // This appears to improve mutator locality | |
2921 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2922 | |
2923 // Get around early Solaris scheduling bug | |
2924 // (affinity vs other jobs on system) | |
2925 // but disallow DR and offlining (5008695). | |
2926 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2927 | |
2928 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2929 // The last option must always win. | |
2930 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2931 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2932 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2933 // The last option must always win. | |
2934 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2935 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2936 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2937 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2938 jio_fprintf(defaultStream::error_stream(), | |
2939 "Please use CMSClassUnloadingEnabled in place of " | |
2940 "CMSPermGenSweepingEnabled in the future\n"); | |
2941 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2942 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2943 jio_fprintf(defaultStream::error_stream(), | |
2944 "Please use -XX:+UseGCOverheadLimit in place of " | |
2945 "-XX:+UseGCTimeLimit in the future\n"); | |
2946 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2947 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2948 jio_fprintf(defaultStream::error_stream(), | |
2949 "Please use -XX:-UseGCOverheadLimit in place of " | |
2950 "-XX:-UseGCTimeLimit in the future\n"); | |
2951 // The TLE options are for compatibility with 1.3 and will be | |
2952 // removed without notice in a future release. These options | |
2953 // are not to be documented. | |
2954 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2955 // No longer used. | |
2956 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2957 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2958 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2959 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2960 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2961 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2962 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2963 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2964 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2965 // No longer used. | |
2966 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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diff
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|
2967 julong long_tlab_size = 0; |
0 | 2968 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2969 if (errcode != arg_in_range) { | |
2970 jio_fprintf(defaultStream::error_stream(), | |
2971 "Invalid TLAB size: %s\n", option->optionString); | |
2972 describe_range_error(errcode); | |
2973 return JNI_EINVAL; | |
2974 } | |
2975 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2976 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2977 // No longer used. | |
2978 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2979 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2980 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2981 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2982 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2983 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2984 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2985 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2986 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2987 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2988 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2989 #if defined(DTRACE_ENABLED) |
0 | 2990 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2991 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2992 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2993 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2994 #else // defined(DTRACE_ENABLED) |
0 | 2995 jio_fprintf(defaultStream::error_stream(), |
4006 | 2996 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2997 return JNI_EINVAL; |
4006 | 2998 #endif // defined(DTRACE_ENABLED) |
0 | 2999 #ifdef ASSERT |
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|
3000 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 3001 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
3002 // disable scavenge before parallel mark-compact | |
3003 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3004 #endif | |
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|
3005 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 3006 julong cms_blocks_to_claim = (julong)atol(tail); |
3007 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
3008 jio_fprintf(defaultStream::error_stream(), | |
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|
3009 "Please use -XX:OldPLABSize in place of " |
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diff
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|
3010 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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6631166: CMS: better heuristics when combatting fragmentation
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|
3011 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
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6631166: CMS: better heuristics when combatting fragmentation
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|
3012 julong cms_blocks_to_claim = (julong)atol(tail); |
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|
3013 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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ysr
parents:
1074
diff
changeset
|
3014 jio_fprintf(defaultStream::error_stream(), |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3015 "Please use -XX:OldPLABSize in place of " |
0 | 3016 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3017 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3018 julong old_plab_size = 0; |
0 | 3019 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
3020 if (errcode != arg_in_range) { | |
3021 jio_fprintf(defaultStream::error_stream(), | |
3022 "Invalid old PLAB size: %s\n", option->optionString); | |
3023 describe_range_error(errcode); | |
3024 return JNI_EINVAL; | |
3025 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3026 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 3027 jio_fprintf(defaultStream::error_stream(), |
3028 "Please use -XX:OldPLABSize in place of " | |
3029 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3030 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3031 julong young_plab_size = 0; |
0 | 3032 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3033 if (errcode != arg_in_range) { | |
3034 jio_fprintf(defaultStream::error_stream(), | |
3035 "Invalid young PLAB size: %s\n", option->optionString); | |
3036 describe_range_error(errcode); | |
3037 return JNI_EINVAL; | |
3038 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
3039 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3040 jio_fprintf(defaultStream::error_stream(), |
3041 "Please use -XX:YoungPLABSize in place of " | |
3042 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3043 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3044 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3045 julong stack_size = 0; | |
3046 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3047 if (errcode != arg_in_range) { | |
3048 jio_fprintf(defaultStream::error_stream(), | |
3049 "Invalid mark stack size: %s\n", option->optionString); | |
3050 describe_range_error(errcode); | |
3051 return JNI_EINVAL; | |
3052 } | |
3053 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3054 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3055 julong max_stack_size = 0; | |
3056 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3057 if (errcode != arg_in_range) { | |
3058 jio_fprintf(defaultStream::error_stream(), | |
3059 "Invalid maximum mark stack size: %s\n", | |
3060 option->optionString); | |
3061 describe_range_error(errcode); | |
3062 return JNI_EINVAL; | |
3063 } | |
3064 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3065 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3066 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3067 uintx conc_threads = 0; | |
3068 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3069 jio_fprintf(defaultStream::error_stream(), | |
3070 "Invalid concurrent threads: %s\n", option->optionString); | |
3071 return JNI_EINVAL; | |
3072 } | |
3073 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3074 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3075 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3076 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
|
3077 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3078 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3079 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3080 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3081 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3082 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3083 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3084 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3085 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3086 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3087 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3088 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
|
3089 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
|
3090 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3091 } 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
|
3092 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
|
3093 "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
|
3094 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3095 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3096 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3097 // Skip -XX:Flags= since that case has already been handled |
3098 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3099 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3100 return JNI_EINVAL; | |
3101 } | |
3102 } | |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
3103 } |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
3104 #ifdef GRAAL |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
3105 else if (match_option(option, "-G:", &tail)) { // -G:XXX |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
3106 // Option for the Graal compiler. |
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
3107 if (PrintVMOptions) { |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
3108 tty->print_cr("Graal option %s", tail); |
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
3109 } |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
3110 Arguments::add_graal_arg(tail); |
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
3111 |
0 | 3112 // Unknown option |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
3113 } |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
3114 #endif |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
3115 else if (is_bad_option(option, args->ignoreUnrecognized)) { |
0 | 3116 return JNI_ERR; |
3117 } | |
3118 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3119 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3120 // 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
|
3121 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3122 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3123 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3124 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3125 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3126 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3127 #endif // LINUX |
0 | 3128 return JNI_OK; |
3129 } | |
3130 | |
3131 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3132 // This must be done after all -D arguments have been processed. | |
3133 scp_p->expand_endorsed(); | |
3134 | |
3135 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3136 // Assemble the bootclasspath elements into the final path. | |
3137 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3138 } | |
3139 | |
3140 // This must be done after all arguments have been processed. | |
3141 // java_compiler() true means set to "NONE" or empty. | |
3142 if (java_compiler() && !xdebug_mode()) { | |
3143 // For backwards compatibility, we switch to interpreted mode if | |
3144 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3145 // not specified. | |
3146 set_mode_flags(_int); | |
3147 } | |
3148 if (CompileThreshold == 0) { | |
3149 set_mode_flags(_int); | |
3150 } | |
3151 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3152 // 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
|
3153 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
|
3154 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
|
3155 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3156 |
0 | 3157 #ifndef COMPILER2 |
3158 // Don't degrade server performance for footprint | |
3159 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3160 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3161 // No need for large granularity pages w/small heaps. | |
3162 // Note that large pages are enabled/disabled for both the | |
3163 // Java heap and the code cache. | |
3164 FLAG_SET_DEFAULT(UseLargePages, false); | |
3165 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3166 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3167 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3168 TieredCompilation = false; |
0 | 3169 #else |
3170 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3171 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3172 } | |
3173 #endif | |
3174 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3175 // 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
|
3176 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3177 // 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
|
3178 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3179 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3180 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3181 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3182 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3183 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3184 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3185 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3186 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3187 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3188 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3189 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3190 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3191 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3192 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3193 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3194 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3195 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3196 |
0 | 3197 if (!check_vm_args_consistency()) { |
3198 return JNI_ERR; | |
3199 } | |
3200 | |
3201 return JNI_OK; | |
3202 } | |
3203 | |
3204 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3205 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3206 scp_assembly_required_p); | |
3207 } | |
3208 | |
3209 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3210 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3211 scp_assembly_required_p); | |
3212 } | |
3213 | |
3214 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3215 const int N_MAX_OPTIONS = 64; | |
3216 const int OPTION_BUFFER_SIZE = 1024; | |
3217 char buffer[OPTION_BUFFER_SIZE]; | |
3218 | |
3219 // The variable will be ignored if it exceeds the length of the buffer. | |
3220 // Don't check this variable if user has special privileges | |
3221 // (e.g. unix su command). | |
3222 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3223 !os::have_special_privileges()) { | |
3224 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3225 jio_fprintf(defaultStream::error_stream(), | |
3226 "Picked up %s: %s\n", name, buffer); | |
3227 char* rd = buffer; // pointer to the input string (rd) | |
3228 int i; | |
3229 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3230 while (isspace(*rd)) rd++; // skip whitespace | |
3231 if (*rd == 0) break; // we re done when the input string is read completely | |
3232 | |
3233 // The output, option string, overwrites the input string. | |
3234 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3235 // input string (rd). | |
3236 char* wrt = rd; | |
3237 | |
3238 options[i++].optionString = wrt; // Fill in option | |
3239 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3240 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3241 int quote = *rd; // matching quote to look for | |
3242 rd++; // don't copy open quote | |
3243 while (*rd != quote) { // include everything (even spaces) up until quote | |
3244 if (*rd == 0) { // string termination means unmatched string | |
3245 jio_fprintf(defaultStream::error_stream(), | |
3246 "Unmatched quote in %s\n", name); | |
3247 return JNI_ERR; | |
3248 } | |
3249 *wrt++ = *rd++; // copy to option string | |
3250 } | |
3251 rd++; // don't copy close quote | |
3252 } else { | |
3253 *wrt++ = *rd++; // copy to option string | |
3254 } | |
3255 } | |
3256 // Need to check if we're done before writing a NULL, | |
3257 // because the write could be to the byte that rd is pointing to. | |
3258 if (*rd++ == 0) { | |
3259 *wrt = 0; | |
3260 break; | |
3261 } | |
3262 *wrt = 0; // Zero terminate option | |
3263 } | |
3264 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3265 JavaVMInitArgs vm_args; | |
3266 vm_args.version = JNI_VERSION_1_2; | |
3267 vm_args.options = options; | |
3268 vm_args.nOptions = i; | |
564 | 3269 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3270 |
3271 if (PrintVMOptions) { | |
3272 const char* tail; | |
3273 for (int i = 0; i < vm_args.nOptions; i++) { | |
3274 const JavaVMOption *option = vm_args.options + i; | |
3275 if (match_option(option, "-XX:", &tail)) { | |
3276 logOption(tail); | |
3277 } | |
3278 } | |
3279 } | |
3280 | |
3281 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3282 } | |
3283 return JNI_OK; | |
3284 } | |
3285 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3286 void Arguments::set_shared_spaces_flags() { |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3287 #ifdef _LP64 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3288 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3289 |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3290 // 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
|
3291 // 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
|
3292 // initialization, this restriction can probably be lifted. |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3293 if (UseCompressedOops) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3294 if (must_share) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3295 warning("disabling compressed oops because of %s", |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3296 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3297 FLAG_SET_CMDLINE(bool, UseCompressedOops, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3298 FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false); |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3299 } else { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3300 // Prefer compressed oops to class data sharing |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3301 if (UseSharedSpaces && Verbose) { |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3302 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
|
3303 } |
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3304 no_shared_spaces(); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3305 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3306 } |
10256
64340da5b68c
8007018: RFE: -XX:+UseLargePages does not work with CDS
hseigel
parents:
10172
diff
changeset
|
3307 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3308 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3309 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3310 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3311 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
|
3312 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3313 UseSharedSpaces = false; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3314 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3315 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3316 |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3317 // 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
|
3318 // were explicitly requested on the command-line |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3319 #define UNSUPPORTED_OPTION(opt, description) \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3320 do { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3321 if (opt) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3322 if (FLAG_IS_CMDLINE(opt)) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3323 warning(description " is disabled in this release."); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3324 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3325 FLAG_SET_DEFAULT(opt, false); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3326 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3327 } while(0) |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3328 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3329 |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3330 #define UNSUPPORTED_GC_OPTION(gc) \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3331 do { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3332 if (gc) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3333 if (FLAG_IS_CMDLINE(gc)) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3334 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
|
3335 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3336 FLAG_SET_DEFAULT(gc, false); \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3337 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3338 } while(0) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3339 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3340 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3341 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3342 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3343 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
|
3344 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3345 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3346 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3347 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3348 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3349 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3350 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3351 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3352 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3353 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3354 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3355 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3356 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3357 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3358 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
|
3359 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
|
3360 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3361 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
|
3362 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
|
3363 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
|
3364 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3365 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3366 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
|
3367 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
|
3368 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3369 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3370 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3371 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
|
3372 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3373 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
|
3374 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3375 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3376 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3377 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3378 |
0 | 3379 // Parse entry point called from JNI_CreateJavaVM |
3380 | |
3381 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3382 | |
3383 // Remaining part of option string | |
3384 const char* tail; | |
3385 | |
3386 // 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
|
3387 const char* hotspotrc = ".hotspotrc"; |
0 | 3388 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
|
3389 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
|
3390 |
564 | 3391 const char* flags_file; |
0 | 3392 int index; |
3393 for (index = 0; index < args->nOptions; index++) { | |
3394 const JavaVMOption *option = args->options + index; | |
3395 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3396 flags_file = tail; |
0 | 3397 settings_file_specified = true; |
3398 } | |
3399 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3400 PrintVMOptions = true; | |
3401 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3402 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
|
3403 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3404 } |
564 | 3405 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3406 IgnoreUnrecognizedVMOptions = true; | |
3407 } | |
3408 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3409 IgnoreUnrecognizedVMOptions = false; | |
3410 } | |
1150 | 3411 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3412 CommandLineFlags::printFlags(tty, false); |
1150 | 3413 vm_exit(0); |
3414 } | |
6197 | 3415 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3416 #if INCLUDE_NMT |
6197 | 3417 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3418 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3419 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
|
3420 "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
|
3421 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3422 #endif |
6197 | 3423 } |
3424 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3425 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3426 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3427 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3428 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3429 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3430 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3431 #endif |
564 | 3432 } |
3433 | |
3434 if (IgnoreUnrecognizedVMOptions) { | |
3435 // uncast const to modify the flag args->ignoreUnrecognized | |
3436 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3437 } | |
3438 | |
3439 // Parse specified settings file | |
3440 if (settings_file_specified) { | |
3441 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3442 return JNI_EINVAL; | |
3443 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3444 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3445 #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
|
3446 // Parse default .hotspotrc settings file |
0 | 3447 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3448 return JNI_EINVAL; | |
3449 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3450 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3451 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
|
3452 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
|
3453 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
|
3454 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3455 #endif |
0 | 3456 } |
3457 | |
3458 if (PrintVMOptions) { | |
3459 for (index = 0; index < args->nOptions; index++) { | |
3460 const JavaVMOption *option = args->options + index; | |
3461 if (match_option(option, "-XX:", &tail)) { | |
3462 logOption(tail); | |
3463 } | |
3464 } | |
3465 } | |
3466 | |
3467 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3468 jint result = parse_vm_init_args(args); | |
3469 if (result != JNI_OK) { | |
3470 return result; | |
3471 } | |
3472 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3473 // 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
|
3474 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3475 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3476 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3477 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3478 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3479 // 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
|
3480 // 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
|
3481 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
|
3482 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
|
3483 "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
|
3484 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3485 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3486 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3487 #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
|
3488 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3489 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3490 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3491 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3492 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3493 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3494 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3495 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3496 |
0 | 3497 #ifndef PRODUCT |
3498 if (TraceBytecodesAt != 0) { | |
3499 TraceBytecodes = true; | |
3500 } | |
3501 if (CountCompiledCalls) { | |
3502 if (UseCounterDecay) { | |
3503 warning("UseCounterDecay disabled because CountCalls is set"); | |
3504 UseCounterDecay = false; | |
3505 } | |
3506 } | |
3507 #endif // PRODUCT | |
3508 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3509 // 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
|
3510 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3511 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3512 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3513 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
|
3514 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3515 EnableInvokeDynamic = false; |
710 | 3516 } |
3517 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3518 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3519 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3520 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3521 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
|
3522 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3523 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3524 } |
710 | 3525 |
0 | 3526 if (PrintGCDetails) { |
3527 // Turn on -verbose:gc options as well | |
3528 PrintGC = true; | |
3529 } | |
3530 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3531 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3532 // 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
|
3533 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3534 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3535 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3536 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3537 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3538 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3539 // 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
|
3540 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
|
3541 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3542 #if !INCLUDE_ALL_GCS |
1064 | 3543 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3544 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3545 #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
|
3546 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3547 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
|
3548 "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
|
3549 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3550 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3551 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
|
3552 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
|
3553 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
|
3554 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
|
3555 } |
0 | 3556 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3557 #endif // INCLUDE_CDS |
0 | 3558 |
3559 // Set flags based on ergonomics. | |
3560 set_ergonomics_flags(); | |
3561 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3562 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3563 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3564 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3565 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3566 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3567 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3568 |
1783 | 3569 if (TieredCompilation) { |
3570 set_tiered_flags(); | |
3571 } else { | |
3572 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
5176
af59b4dfc9e4
compilation queue changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
5152
diff
changeset
|
3573 if (CompilationPolicyChoice >= 2 && CompilationPolicyChoice < 4) { |
1783 | 3574 vm_exit_during_initialization( |
3575 "Incompatible compilation policy selected", NULL); | |
3576 } | |
3577 } | |
3578 | |
10990
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3579 set_heap_base_min_address(); |
0abfeed51c9e
8012265: VM often crashes on solaris with a lot of memory
brutisso
parents:
10392
diff
changeset
|
3580 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3581 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3582 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3583 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3584 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3585 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3586 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3587 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3588 } 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
|
3589 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3590 } 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
|
3591 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3592 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3593 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3594 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3595 check_deprecated_gcs(); |
8734 | 3596 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3597 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3598 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
|
3599 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
|
3600 " 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
|
3601 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3602 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3603 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3604 #else // INCLUDE_ALL_GCS |
0 | 3605 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3606 #endif // INCLUDE_ALL_GCS |
0 | 3607 |
3608 // Set bytecode rewriting flags | |
3609 set_bytecode_flags(); | |
3610 | |
3611 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3612 set_aggressive_opts_flags(); | |
3613 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3614 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3615 // 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
|
3616 // biased locking. |
2331 | 3617 if (UseHeavyMonitors |
3618 #ifdef COMPILER1 | |
3619 || !UseFastLocking | |
3620 #endif // COMPILER1 | |
7154
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
7125
diff
changeset
|
3621 #ifdef GRAAL |
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
7125
diff
changeset
|
3622 || !GraalUseFastLocking |
5d0bb7d52783
changes to support Graal co-existing with the other HotSpot compiler(s) and being used for explicit compilation requests and code installation via the Graal API
Doug Simon <doug.simon@oracle.com>
parents:
7125
diff
changeset
|
3623 #endif // GRAAL |
2331 | 3624 ) { |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3625 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3626 // 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
|
3627 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3628 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3629 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3630 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3631 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3632 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3633 |
0 | 3634 #ifdef CC_INTERP |
1131 | 3635 // Clear flags not supported by the C++ interpreter |
3636 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3637 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3638 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3639 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3640 #endif // CC_INTERP |
3641 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3642 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3643 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3644 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3645 } |
4777 | 3646 if (!EliminateLocks) { |
3647 EliminateNestedLocks = false; | |
3648 } | |
7473 | 3649 if (!Inline) { |
3650 IncrementalInline = false; | |
3651 } | |
3652 #ifndef PRODUCT | |
3653 if (!IncrementalInline) { | |
3654 AlwaysIncrementalInline = false; | |
3655 } | |
3656 #endif | |
3657 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3658 // incremental inlining: bump MaxNodeLimit | |
3659 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3660 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3661 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3662 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3663 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3664 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
|
3665 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3666 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3667 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3668 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3669 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3670 // Force NmethodSweeper to sweep whole CodeCache each time. |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3671 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3672 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3673 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3674 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3675 #endif |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3676 |
0 | 3677 if (PrintCommandLineFlags) { |
4773 | 3678 CommandLineFlags::printSetFlags(tty); |
0 | 3679 } |
3680 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3681 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3682 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3683 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3684 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3685 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3686 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3687 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3688 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3689 // set PauseAtExit if the gamma launcher was used and a debugger is attached |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3690 // but only if not already set on the commandline |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3691 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3692 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3693 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3694 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3695 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3696 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3697 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3698 |
0 | 3699 return JNI_OK; |
3700 } | |
3701 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3702 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3703 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3704 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3705 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3706 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3707 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3708 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3709 // For those collectors or operating systems (eg, Windows) that do |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3710 // not support full UseNUMA, we will map to UseNUMAInterleaving for now |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3711 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3712 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3713 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3714 #endif // INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3715 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3716 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3717 |
0 | 3718 int Arguments::PropertyList_count(SystemProperty* pl) { |
3719 int count = 0; | |
3720 while(pl != NULL) { | |
3721 count++; | |
3722 pl = pl->next(); | |
3723 } | |
3724 return count; | |
3725 } | |
3726 | |
3727 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3728 assert(key != NULL, "just checking"); | |
3729 SystemProperty* prop; | |
3730 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3731 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3732 } | |
3733 return NULL; | |
3734 } | |
3735 | |
3736 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3737 int count = 0; | |
3738 const char* ret_val = NULL; | |
3739 | |
3740 while(pl != NULL) { | |
3741 if(count >= index) { | |
3742 ret_val = pl->key(); | |
3743 break; | |
3744 } | |
3745 count++; | |
3746 pl = pl->next(); | |
3747 } | |
3748 | |
3749 return ret_val; | |
3750 } | |
3751 | |
3752 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3753 int count = 0; | |
3754 char* ret_val = NULL; | |
3755 | |
3756 while(pl != NULL) { | |
3757 if(count >= index) { | |
3758 ret_val = pl->value(); | |
3759 break; | |
3760 } | |
3761 count++; | |
3762 pl = pl->next(); | |
3763 } | |
3764 | |
3765 return ret_val; | |
3766 } | |
3767 | |
3768 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3769 SystemProperty* p = *plist; | |
3770 if (p == NULL) { | |
3771 *plist = new_p; | |
3772 } else { | |
3773 while (p->next() != NULL) { | |
3774 p = p->next(); | |
3775 } | |
3776 p->set_next(new_p); | |
3777 } | |
3778 } | |
3779 | |
3780 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3781 if (plist == NULL) | |
3782 return; | |
3783 | |
3784 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3785 PropertyList_add(plist, new_p); | |
3786 } | |
3787 | |
3788 // This add maintains unique property key in the list. | |
691 | 3789 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3790 if (plist == NULL) |
3791 return; | |
3792 | |
3793 // If property key exist then update with new value. | |
3794 SystemProperty* prop; | |
3795 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3796 if (strcmp(k, prop->key()) == 0) { | |
691 | 3797 if (append) { |
3798 prop->append_value(v); | |
3799 } else { | |
3800 prop->set_value(v); | |
3801 } | |
0 | 3802 return; |
3803 } | |
3804 } | |
3805 | |
3806 PropertyList_add(plist, k, v); | |
3807 } | |
3808 | |
3809 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3810 // Returns true if all of the source pointed by src has been copied over to | |
3811 // the destination buffer pointed by buf. Otherwise, returns false. | |
3812 // Notes: | |
3813 // 1. If the length (buflen) of the destination buffer excluding the | |
3814 // NULL terminator character is not long enough for holding the expanded | |
3815 // pid characters, it also returns false instead of returning the partially | |
3816 // expanded one. | |
3817 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3818 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3819 char* buf, size_t buflen) { | |
3820 const char* p = src; | |
3821 char* b = buf; | |
3822 const char* src_end = &src[srclen]; | |
3823 char* buf_end = &buf[buflen - 1]; | |
3824 | |
3825 while (p < src_end && b < buf_end) { | |
3826 if (*p == '%') { | |
3827 switch (*(++p)) { | |
3828 case '%': // "%%" ==> "%" | |
3829 *b++ = *p++; | |
3830 break; | |
3831 case 'p': { // "%p" ==> current process id | |
3832 // buf_end points to the character before the last character so | |
3833 // that we could write '\0' to the end of the buffer. | |
3834 size_t buf_sz = buf_end - b + 1; | |
3835 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3836 | |
3837 // if jio_snprintf fails or the buffer is not long enough to hold | |
3838 // the expanded pid, returns false. | |
3839 if (ret < 0 || ret >= (int)buf_sz) { | |
3840 return false; | |
3841 } else { | |
3842 b += ret; | |
3843 assert(*b == '\0', "fail in copy_expand_pid"); | |
3844 if (p == src_end && b == buf_end + 1) { | |
3845 // reach the end of the buffer. | |
3846 return true; | |
3847 } | |
3848 } | |
3849 p++; | |
3850 break; | |
3851 } | |
3852 default : | |
3853 *b++ = '%'; | |
3854 } | |
3855 } else { | |
3856 *b++ = *p++; | |
3857 } | |
3858 } | |
3859 *b = '\0'; | |
3860 return (p == src_end); // return false if not all of the source was copied | |
3861 } |