Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/arguments.cpp @ 8883:b9a918201d47
Merge with hsx25
author | Gilles Duboscq <duboscq@ssw.jku.at> |
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date | Sat, 06 Apr 2013 20:04:06 +0200 |
parents | c92949b1ec8a 0c039865ef2b |
children | 89e4d67fdd2a |
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 bool Arguments::_has_alloc_profile = false; | |
76 uintx Arguments::_min_heap_size = 0; | |
77 Arguments::Mode Arguments::_mode = _mixed; | |
78 bool Arguments::_java_compiler = false; | |
79 bool Arguments::_xdebug_mode = false; | |
80 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
81 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
82 int Arguments::_sun_java_launcher_pid = -1; | |
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83 bool Arguments::_created_by_gamma_launcher = false; |
0 | 84 |
85 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
86 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
87 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
88 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
89 bool Arguments::_ClipInlining = ClipInlining; | |
90 | |
91 char* Arguments::SharedArchivePath = NULL; | |
92 | |
93 AgentLibraryList Arguments::_libraryList; | |
94 AgentLibraryList Arguments::_agentList; | |
95 | |
96 abort_hook_t Arguments::_abort_hook = NULL; | |
97 exit_hook_t Arguments::_exit_hook = NULL; | |
98 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
99 | |
100 | |
101 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
102 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
103 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
104 SystemProperty *Arguments::_java_library_path = NULL; | |
105 SystemProperty *Arguments::_java_home = NULL; | |
106 SystemProperty *Arguments::_java_class_path = NULL; | |
107 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
108 | |
109 char* Arguments::_meta_index_path = NULL; | |
110 char* Arguments::_meta_index_dir = NULL; | |
111 | |
112 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
113 | |
114 static bool match_option(const JavaVMOption *option, const char* name, | |
115 const char** tail) { | |
116 int len = (int)strlen(name); | |
117 if (strncmp(option->optionString, name, len) == 0) { | |
118 *tail = option->optionString + len; | |
119 return true; | |
120 } else { | |
121 return false; | |
122 } | |
123 } | |
124 | |
125 static void logOption(const char* opt) { | |
126 if (PrintVMOptions) { | |
127 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
128 } | |
129 } | |
130 | |
131 // Process java launcher properties. | |
132 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
133 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
134 // Must do this before setting up other system properties, | |
135 // as some of them may depend on launcher type. | |
136 for (int index = 0; index < args->nOptions; index++) { | |
137 const JavaVMOption* option = args->options + index; | |
138 const char* tail; | |
139 | |
140 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
141 process_java_launcher_argument(tail, option->extraInfo); | |
142 continue; | |
143 } | |
144 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
145 _sun_java_launcher_pid = atoi(tail); | |
146 continue; | |
147 } | |
148 } | |
149 } | |
150 | |
151 // Initialize system properties key and value. | |
152 void Arguments::init_system_properties() { | |
153 | |
154 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
155 "Java Virtual Machine Specification", false)); | |
156 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
157 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
158 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
159 | |
160 // following are JVMTI agent writeable properties. | |
161 // Properties values are set to NULL and they are | |
162 // os specific they are initialized in os::init_system_properties_values(). | |
163 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
164 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
165 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
166 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
167 _java_home = new SystemProperty("java.home", NULL, true); | |
168 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
169 | |
170 _java_class_path = new SystemProperty("java.class.path", "", true); | |
171 | |
172 // Add to System Property list. | |
173 PropertyList_add(&_system_properties, _java_ext_dirs); | |
174 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
175 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
176 PropertyList_add(&_system_properties, _java_library_path); | |
177 PropertyList_add(&_system_properties, _java_home); | |
178 PropertyList_add(&_system_properties, _java_class_path); | |
179 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
180 | |
181 // Set OS specific system properties values | |
182 os::init_system_properties_values(); | |
183 } | |
184 | |
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185 |
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186 // Update/Initialize System properties after JDK version number is known |
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187 void Arguments::init_version_specific_system_properties() { |
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188 enum { bufsz = 16 }; |
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189 char buffer[bufsz]; |
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190 const char* spec_vendor = "Sun Microsystems Inc."; |
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191 uint32_t spec_version = 0; |
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192 |
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193 if (JDK_Version::is_gte_jdk17x_version()) { |
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194 spec_vendor = "Oracle Corporation"; |
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195 spec_version = JDK_Version::current().major_version(); |
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196 } |
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197 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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198 |
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199 PropertyList_add(&_system_properties, |
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200 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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201 PropertyList_add(&_system_properties, |
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202 new SystemProperty("java.vm.specification.version", buffer, false)); |
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203 PropertyList_add(&_system_properties, |
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204 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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205 } |
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206 |
242 | 207 /** |
208 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
209 * When a flag is eliminated, it can be added to this list in order to | |
210 * continue accepting this flag on the command-line, while issuing a warning | |
211 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
212 * limit, we flatly refuse to admit the existence of the flag. This allows | |
213 * a flag to die correctly over JDK releases using HSX. | |
214 */ | |
215 typedef struct { | |
216 const char* name; | |
217 JDK_Version obsoleted_in; // when the flag went away | |
218 JDK_Version accept_until; // which version to start denying the existence | |
219 } ObsoleteFlag; | |
0 | 220 |
242 | 221 static ObsoleteFlag obsolete_jvm_flags[] = { |
222 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
223 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
224 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
225 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
226 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
227 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
228 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
229 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
230 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
231 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
232 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
233 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
234 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
235 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 236 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
237 { "DefaultInitialRAMFraction", | |
238 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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239 { "UseDepthFirstScavengeOrder", |
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240 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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241 { "HandlePromotionFailure", |
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242 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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243 { "MaxLiveObjectEvacuationRatio", |
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244 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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245 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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246 { "UseParallelOldGCCompacting", |
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247 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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248 { "UseParallelDensePrefixUpdate", |
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249 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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250 { "UseParallelOldGCDensePrefix", |
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251 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 252 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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253 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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254 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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255 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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256 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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257 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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258 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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259 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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260 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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261 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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262 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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263 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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264 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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265 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 266 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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267 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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268 #ifdef PRODUCT |
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269 { "DesiredMethodLimit", |
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270 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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271 #endif // PRODUCT |
242 | 272 { NULL, JDK_Version(0), JDK_Version(0) } |
273 }; | |
274 | |
275 // Returns true if the flag is obsolete and fits into the range specified | |
276 // for being ignored. In the case that the flag is ignored, the 'version' | |
277 // value is filled in with the version number when the flag became | |
278 // obsolete so that that value can be displayed to the user. | |
279 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 280 int i = 0; |
242 | 281 assert(version != NULL, "Must provide a version buffer"); |
282 while (obsolete_jvm_flags[i].name != NULL) { | |
283 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 284 // <flag>=xxx form |
285 // [-|+]<flag> form | |
242 | 286 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 287 ((s[0] == '+' || s[0] == '-') && |
242 | 288 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
289 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
290 *version = flag_status.obsoleted_in; | |
291 return true; | |
292 } | |
0 | 293 } |
294 i++; | |
295 } | |
296 return false; | |
297 } | |
298 | |
299 // Constructs the system class path (aka boot class path) from the following | |
300 // components, in order: | |
301 // | |
302 // prefix // from -Xbootclasspath/p:... | |
303 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
304 // base // from os::get_system_properties() or -Xbootclasspath= | |
305 // suffix // from -Xbootclasspath/a:... | |
306 // | |
307 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
308 // directories are added to the sysclasspath just before the base. | |
309 // | |
310 // This could be AllStatic, but it isn't needed after argument processing is | |
311 // complete. | |
312 class SysClassPath: public StackObj { | |
313 public: | |
314 SysClassPath(const char* base); | |
315 ~SysClassPath(); | |
316 | |
317 inline void set_base(const char* base); | |
318 inline void add_prefix(const char* prefix); | |
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319 inline void add_suffix_to_prefix(const char* suffix); |
0 | 320 inline void add_suffix(const char* suffix); |
321 inline void reset_path(const char* base); | |
322 | |
323 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
324 // property. Must be called after all command-line arguments have been | |
325 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
326 // combined_path(). | |
327 void expand_endorsed(); | |
328 | |
329 inline const char* get_base() const { return _items[_scp_base]; } | |
330 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
331 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
332 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
333 | |
334 // Combine all the components into a single c-heap-allocated string; caller | |
335 // must free the string if/when no longer needed. | |
336 char* combined_path(); | |
337 | |
338 private: | |
339 // Utility routines. | |
340 static char* add_to_path(const char* path, const char* str, bool prepend); | |
341 static char* add_jars_to_path(char* path, const char* directory); | |
342 | |
343 inline void reset_item_at(int index); | |
344 | |
345 // Array indices for the items that make up the sysclasspath. All except the | |
346 // base are allocated in the C heap and freed by this class. | |
347 enum { | |
348 _scp_prefix, // from -Xbootclasspath/p:... | |
349 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
350 _scp_base, // the default sysclasspath | |
351 _scp_suffix, // from -Xbootclasspath/a:... | |
352 _scp_nitems // the number of items, must be last. | |
353 }; | |
354 | |
355 const char* _items[_scp_nitems]; | |
356 DEBUG_ONLY(bool _expansion_done;) | |
357 }; | |
358 | |
359 SysClassPath::SysClassPath(const char* base) { | |
360 memset(_items, 0, sizeof(_items)); | |
361 _items[_scp_base] = base; | |
362 DEBUG_ONLY(_expansion_done = false;) | |
363 } | |
364 | |
365 SysClassPath::~SysClassPath() { | |
366 // Free everything except the base. | |
367 for (int i = 0; i < _scp_nitems; ++i) { | |
368 if (i != _scp_base) reset_item_at(i); | |
369 } | |
370 DEBUG_ONLY(_expansion_done = false;) | |
371 } | |
372 | |
373 inline void SysClassPath::set_base(const char* base) { | |
374 _items[_scp_base] = base; | |
375 } | |
376 | |
377 inline void SysClassPath::add_prefix(const char* prefix) { | |
378 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
379 } | |
380 | |
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381 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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382 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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383 } |
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384 |
0 | 385 inline void SysClassPath::add_suffix(const char* suffix) { |
386 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
387 } | |
388 | |
389 inline void SysClassPath::reset_item_at(int index) { | |
390 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
391 if (_items[index] != NULL) { | |
6197 | 392 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 393 _items[index] = NULL; |
394 } | |
395 } | |
396 | |
397 inline void SysClassPath::reset_path(const char* base) { | |
398 // Clear the prefix and suffix. | |
399 reset_item_at(_scp_prefix); | |
400 reset_item_at(_scp_suffix); | |
401 set_base(base); | |
402 } | |
403 | |
404 //------------------------------------------------------------------------------ | |
405 | |
406 void SysClassPath::expand_endorsed() { | |
407 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
408 | |
409 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
410 if (path == NULL) { | |
411 path = Arguments::get_endorsed_dir(); | |
412 assert(path != NULL, "no default for java.endorsed.dirs"); | |
413 } | |
414 | |
415 char* expanded_path = NULL; | |
416 const char separator = *os::path_separator(); | |
417 const char* const end = path + strlen(path); | |
418 while (path < end) { | |
419 const char* tmp_end = strchr(path, separator); | |
420 if (tmp_end == NULL) { | |
421 expanded_path = add_jars_to_path(expanded_path, path); | |
422 path = end; | |
423 } else { | |
6197 | 424 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 425 memcpy(dirpath, path, tmp_end - path); |
426 dirpath[tmp_end - path] = '\0'; | |
427 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 428 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 429 path = tmp_end + 1; |
430 } | |
431 } | |
432 _items[_scp_endorsed] = expanded_path; | |
433 DEBUG_ONLY(_expansion_done = true;) | |
434 } | |
435 | |
436 // Combine the bootclasspath elements, some of which may be null, into a single | |
437 // c-heap-allocated string. | |
438 char* SysClassPath::combined_path() { | |
439 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
440 assert(_expansion_done, "must call expand_endorsed() first."); | |
441 | |
442 size_t lengths[_scp_nitems]; | |
443 size_t total_len = 0; | |
444 | |
445 const char separator = *os::path_separator(); | |
446 | |
447 // Get the lengths. | |
448 int i; | |
449 for (i = 0; i < _scp_nitems; ++i) { | |
450 if (_items[i] != NULL) { | |
451 lengths[i] = strlen(_items[i]); | |
452 // Include space for the separator char (or a NULL for the last item). | |
453 total_len += lengths[i] + 1; | |
454 } | |
455 } | |
456 assert(total_len > 0, "empty sysclasspath not allowed"); | |
457 | |
458 // Copy the _items to a single string. | |
6197 | 459 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 460 char* cp_tmp = cp; |
461 for (i = 0; i < _scp_nitems; ++i) { | |
462 if (_items[i] != NULL) { | |
463 memcpy(cp_tmp, _items[i], lengths[i]); | |
464 cp_tmp += lengths[i]; | |
465 *cp_tmp++ = separator; | |
466 } | |
467 } | |
468 *--cp_tmp = '\0'; // Replace the extra separator. | |
469 return cp; | |
470 } | |
471 | |
472 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
473 char* | |
474 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
475 char *cp; | |
476 | |
477 assert(str != NULL, "just checking"); | |
478 if (path == NULL) { | |
479 size_t len = strlen(str) + 1; | |
6197 | 480 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 481 memcpy(cp, str, len); // copy the trailing null |
482 } else { | |
483 const char separator = *os::path_separator(); | |
484 size_t old_len = strlen(path); | |
485 size_t str_len = strlen(str); | |
486 size_t len = old_len + str_len + 2; | |
487 | |
488 if (prepend) { | |
6197 | 489 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 490 char* cp_tmp = cp; |
491 memcpy(cp_tmp, str, str_len); | |
492 cp_tmp += str_len; | |
493 *cp_tmp = separator; | |
494 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 495 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 496 } else { |
6197 | 497 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 498 char* cp_tmp = cp + old_len; |
499 *cp_tmp = separator; | |
500 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
501 } | |
502 } | |
503 return cp; | |
504 } | |
505 | |
506 // Scan the directory and append any jar or zip files found to path. | |
507 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
508 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
509 DIR* dir = os::opendir(directory); | |
510 if (dir == NULL) return path; | |
511 | |
512 char dir_sep[2] = { '\0', '\0' }; | |
513 size_t directory_len = strlen(directory); | |
514 const char fileSep = *os::file_separator(); | |
515 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
516 | |
517 /* Scan the directory for jars/zips, appending them to path. */ | |
518 struct dirent *entry; | |
6197 | 519 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 520 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
521 const char* name = entry->d_name; | |
522 const char* ext = name + strlen(name) - 4; | |
523 bool isJarOrZip = ext > name && | |
524 (os::file_name_strcmp(ext, ".jar") == 0 || | |
525 os::file_name_strcmp(ext, ".zip") == 0); | |
526 if (isJarOrZip) { | |
6197 | 527 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 528 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
529 path = add_to_path(path, jarpath, false); | |
6197 | 530 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 531 } |
532 } | |
6197 | 533 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 534 os::closedir(dir); |
535 return path; | |
536 } | |
537 | |
538 // Parses a memory size specification string. | |
489
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539 static bool atomull(const char *s, julong* result) { |
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540 julong n = 0; |
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541 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 542 if (args_read != 1) { |
543 return false; | |
544 } | |
545 while (*s != '\0' && isdigit(*s)) { | |
546 s++; | |
547 } | |
548 // 4705540: illegal if more characters are found after the first non-digit | |
549 if (strlen(s) > 1) { | |
550 return false; | |
551 } | |
552 switch (*s) { | |
553 case 'T': case 't': | |
554 *result = n * G * K; | |
489
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555 // Check for overflow. |
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556 if (*result/((julong)G * K) != n) return false; |
0 | 557 return true; |
558 case 'G': case 'g': | |
559 *result = n * G; | |
489
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560 if (*result/G != n) return false; |
0 | 561 return true; |
562 case 'M': case 'm': | |
563 *result = n * M; | |
489
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564 if (*result/M != n) return false; |
0 | 565 return true; |
566 case 'K': case 'k': | |
567 *result = n * K; | |
489
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568 if (*result/K != n) return false; |
0 | 569 return true; |
570 case '\0': | |
571 *result = n; | |
572 return true; | |
573 default: | |
574 return false; | |
575 } | |
576 } | |
577 | |
489
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578 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 579 if (size < min_size) return arg_too_small; |
580 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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581 if (size > max_uintx) return arg_too_big; |
0 | 582 return arg_in_range; |
583 } | |
584 | |
585 // Describe an argument out of range error | |
586 void Arguments::describe_range_error(ArgsRange errcode) { | |
587 switch(errcode) { | |
588 case arg_too_big: | |
589 jio_fprintf(defaultStream::error_stream(), | |
590 "The specified size exceeds the maximum " | |
591 "representable size.\n"); | |
592 break; | |
593 case arg_too_small: | |
594 case arg_unreadable: | |
595 case arg_in_range: | |
596 // do nothing for now | |
597 break; | |
598 default: | |
599 ShouldNotReachHere(); | |
600 } | |
601 } | |
602 | |
603 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
604 return CommandLineFlags::boolAtPut(name, &value, origin); | |
605 } | |
606 | |
607 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
608 double v; | |
609 if (sscanf(value, "%lf", &v) != 1) { | |
610 return false; | |
611 } | |
612 | |
613 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
614 return true; | |
615 } | |
616 return false; | |
617 } | |
618 | |
619 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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620 julong v; |
0 | 621 intx intx_v; |
622 bool is_neg = false; | |
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623 // Check the sign first since atomull() parses only unsigned values. |
0 | 624 if (*value == '-') { |
625 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
626 return false; | |
627 } | |
628 value++; | |
629 is_neg = true; | |
630 } | |
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631 if (!atomull(value, &v)) { |
0 | 632 return false; |
633 } | |
634 intx_v = (intx) v; | |
635 if (is_neg) { | |
636 intx_v = -intx_v; | |
637 } | |
638 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
639 return true; | |
640 } | |
641 uintx uintx_v = (uintx) v; | |
642 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
643 return true; | |
644 } | |
1064 | 645 uint64_t uint64_t_v = (uint64_t) v; |
646 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
647 return true; | |
648 } | |
0 | 649 return false; |
650 } | |
651 | |
652 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
653 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
654 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 655 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 656 return true; |
657 } | |
658 | |
659 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
660 const char* old_value = ""; | |
661 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
662 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
663 size_t new_len = strlen(new_value); | |
664 const char* value; | |
665 char* free_this_too = NULL; | |
666 if (old_len == 0) { | |
667 value = new_value; | |
668 } else if (new_len == 0) { | |
669 value = old_value; | |
670 } else { | |
6197 | 671 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 672 // each new setting adds another LINE to the switch: |
673 sprintf(buf, "%s\n%s", old_value, new_value); | |
674 value = buf; | |
675 free_this_too = buf; | |
676 } | |
677 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
678 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 679 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 680 if (free_this_too != NULL) { |
681 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 682 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 683 } |
684 return true; | |
685 } | |
686 | |
687 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
688 | |
689 // range of acceptable characters spelled out for portability reasons | |
690 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
691 #define BUFLEN 255 | |
692 char name[BUFLEN+1]; | |
693 char dummy; | |
694 | |
695 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
696 return set_bool_flag(name, false, origin); | |
697 } | |
698 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
699 return set_bool_flag(name, true, origin); | |
700 } | |
701 | |
702 char punct; | |
703 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
704 const char* value = strchr(arg, '=') + 1; | |
705 Flag* flag = Flag::find_flag(name, strlen(name)); | |
706 if (flag != NULL && flag->is_ccstr()) { | |
707 if (flag->ccstr_accumulates()) { | |
708 return append_to_string_flag(name, value, origin); | |
709 } else { | |
710 if (value[0] == '\0') { | |
711 value = NULL; | |
712 } | |
713 return set_string_flag(name, value, origin); | |
714 } | |
715 } | |
716 } | |
717 | |
718 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
719 const char* value = strchr(arg, '=') + 1; | |
720 // -XX:Foo:=xxx will reset the string flag to the given value. | |
721 if (value[0] == '\0') { | |
722 value = NULL; | |
723 } | |
724 return set_string_flag(name, value, origin); | |
725 } | |
726 | |
727 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
728 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
729 #define NUMBER_RANGE "[0123456789]" | |
730 char value[BUFLEN + 1]; | |
731 char value2[BUFLEN + 1]; | |
732 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
733 // Looks like a floating-point number -- try again with more lenient format string | |
734 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
735 return set_fp_numeric_flag(name, value, origin); | |
736 } | |
737 } | |
738 | |
739 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
740 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
741 return set_numeric_flag(name, value, origin); | |
742 } | |
743 | |
744 return false; | |
745 } | |
746 | |
747 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
748 assert(bldarray != NULL, "illegal argument"); | |
749 | |
750 if (arg == NULL) { | |
751 return; | |
752 } | |
753 | |
754 int index = *count; | |
755 | |
756 // expand the array and add arg to the last element | |
757 (*count)++; | |
758 if (*bldarray == NULL) { | |
6197 | 759 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
0 | 760 } else { |
6197 | 761 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
0 | 762 } |
763 (*bldarray)[index] = strdup(arg); | |
764 } | |
765 | |
766 void Arguments::build_jvm_args(const char* arg) { | |
767 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
768 } | |
769 | |
770 void Arguments::build_jvm_flags(const char* arg) { | |
771 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
772 } | |
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773 #ifdef GRAAL |
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774 void Arguments::add_graal_arg(const char* arg) { |
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775 add_string(&_graal_args_array, &_num_graal_args, arg); |
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776 } |
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777 #endif |
0 | 778 |
779 // utility function to return a string that concatenates all | |
780 // strings in a given char** array | |
781 const char* Arguments::build_resource_string(char** args, int count) { | |
782 if (args == NULL || count == 0) { | |
783 return NULL; | |
784 } | |
785 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
786 for (int i = 1; i < count; i++) { | |
787 length += strlen(args[i]) + 1; // add 1 for a space | |
788 } | |
789 char* s = NEW_RESOURCE_ARRAY(char, length); | |
790 strcpy(s, args[0]); | |
791 for (int j = 1; j < count; j++) { | |
792 strcat(s, " "); | |
793 strcat(s, args[j]); | |
794 } | |
795 return (const char*) s; | |
796 } | |
797 | |
798 void Arguments::print_on(outputStream* st) { | |
799 st->print_cr("VM Arguments:"); | |
800 if (num_jvm_flags() > 0) { | |
801 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
802 } | |
803 if (num_jvm_args() > 0) { | |
804 st->print("jvm_args: "); print_jvm_args_on(st); | |
805 } | |
806 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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807 if (_java_class_path != NULL) { |
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808 char* path = _java_class_path->value(); |
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809 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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810 } |
0 | 811 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
812 } | |
813 | |
814 void Arguments::print_jvm_flags_on(outputStream* st) { | |
815 if (_num_jvm_flags > 0) { | |
816 for (int i=0; i < _num_jvm_flags; i++) { | |
817 st->print("%s ", _jvm_flags_array[i]); | |
818 } | |
819 st->print_cr(""); | |
820 } | |
821 } | |
822 | |
823 void Arguments::print_jvm_args_on(outputStream* st) { | |
824 if (_num_jvm_args > 0) { | |
825 for (int i=0; i < _num_jvm_args; i++) { | |
826 st->print("%s ", _jvm_args_array[i]); | |
827 } | |
828 st->print_cr(""); | |
829 } | |
830 } | |
831 | |
242 | 832 bool Arguments::process_argument(const char* arg, |
833 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
834 | |
835 JDK_Version since = JDK_Version(); | |
0 | 836 |
3250 | 837 if (parse_argument(arg, origin) || ignore_unrecognized) { |
838 return true; | |
0 | 839 } |
3250 | 840 |
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841 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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842 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 843 if (is_newly_obsolete(arg, &since)) { |
844 char version[256]; | |
845 since.to_string(version, sizeof(version)); | |
846 warning("ignoring option %s; support was removed in %s", argname, version); | |
847 return true; | |
848 } | |
849 | |
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850 // For locked flags, report a custom error message if available. |
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851 // Otherwise, report the standard unrecognized VM option. |
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852 |
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853 size_t arg_len; |
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854 const char* equal_sign = strchr(argname, '='); |
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855 if (equal_sign == NULL) { |
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856 arg_len = strlen(argname); |
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857 } else { |
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858 arg_len = equal_sign - argname; |
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859 } |
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860 |
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861 Flag* found_flag = Flag::find_flag((char*)argname, arg_len, true); |
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862 if (found_flag != NULL) { |
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863 char locked_message_buf[BUFLEN]; |
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864 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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865 if (strlen(locked_message_buf) == 0) { |
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866 if (found_flag->is_bool() && !has_plus_minus) { |
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867 jio_fprintf(defaultStream::error_stream(), |
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868 "Missing +/- setting for VM option '%s'\n", argname); |
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869 } else if (!found_flag->is_bool() && has_plus_minus) { |
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870 jio_fprintf(defaultStream::error_stream(), |
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871 "Unexpected +/- setting in VM option '%s'\n", argname); |
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872 } else { |
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873 jio_fprintf(defaultStream::error_stream(), |
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874 "Improperly specified VM option '%s'\n", argname); |
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875 } |
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876 } else { |
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877 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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878 } |
6017 | 879 } else { |
880 jio_fprintf(defaultStream::error_stream(), | |
881 "Unrecognized VM option '%s'\n", argname); | |
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882 } |
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883 |
3250 | 884 // allow for commandline "commenting out" options like -XX:#+Verbose |
885 return arg[0] == '#'; | |
0 | 886 } |
887 | |
888 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
889 FILE* stream = fopen(file_name, "rb"); | |
890 if (stream == NULL) { | |
891 if (should_exist) { | |
892 jio_fprintf(defaultStream::error_stream(), | |
893 "Could not open settings file %s\n", file_name); | |
894 return false; | |
895 } else { | |
896 return true; | |
897 } | |
898 } | |
899 | |
900 char token[1024]; | |
901 int pos = 0; | |
902 | |
903 bool in_white_space = true; | |
904 bool in_comment = false; | |
905 bool in_quote = false; | |
906 char quote_c = 0; | |
907 bool result = true; | |
908 | |
909 int c = getc(stream); | |
6901 | 910 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 911 if (in_white_space) { |
912 if (in_comment) { | |
913 if (c == '\n') in_comment = false; | |
914 } else { | |
915 if (c == '#') in_comment = true; | |
916 else if (!isspace(c)) { | |
917 in_white_space = false; | |
918 token[pos++] = c; | |
919 } | |
920 } | |
921 } else { | |
922 if (c == '\n' || (!in_quote && isspace(c))) { | |
923 // token ends at newline, or at unquoted whitespace | |
924 // this allows a way to include spaces in string-valued options | |
925 token[pos] = '\0'; | |
926 logOption(token); | |
927 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
928 build_jvm_flags(token); | |
929 pos = 0; | |
930 in_white_space = true; | |
931 in_quote = false; | |
932 } else if (!in_quote && (c == '\'' || c == '"')) { | |
933 in_quote = true; | |
934 quote_c = c; | |
935 } else if (in_quote && (c == quote_c)) { | |
936 in_quote = false; | |
937 } else { | |
938 token[pos++] = c; | |
939 } | |
940 } | |
941 c = getc(stream); | |
942 } | |
943 if (pos > 0) { | |
944 token[pos] = '\0'; | |
945 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
946 build_jvm_flags(token); | |
947 } | |
948 fclose(stream); | |
949 return result; | |
950 } | |
951 | |
952 //============================================================================================================= | |
953 // Parsing of properties (-D) | |
954 | |
955 const char* Arguments::get_property(const char* key) { | |
956 return PropertyList_get_value(system_properties(), key); | |
957 } | |
958 | |
959 bool Arguments::add_property(const char* prop) { | |
960 const char* eq = strchr(prop, '='); | |
961 char* key; | |
962 // ns must be static--its address may be stored in a SystemProperty object. | |
963 const static char ns[1] = {0}; | |
964 char* value = (char *)ns; | |
965 | |
966 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 967 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 968 strncpy(key, prop, key_len); |
969 key[key_len] = '\0'; | |
970 | |
971 if (eq != NULL) { | |
972 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 973 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 974 strncpy(value, &prop[key_len + 1], value_len + 1); |
975 } | |
976 | |
977 if (strcmp(key, "java.compiler") == 0) { | |
978 process_java_compiler_argument(value); | |
979 FreeHeap(key); | |
980 if (eq != NULL) { | |
981 FreeHeap(value); | |
982 } | |
983 return true; | |
691 | 984 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 985 _java_command = value; |
986 | |
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987 // Record value in Arguments, but let it get passed to Java. |
691 | 988 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 989 // launcher.pid property is private and is processed |
990 // in process_sun_java_launcher_properties(); | |
991 // the sun.java.launcher property is passed on to the java application | |
992 FreeHeap(key); | |
993 if (eq != NULL) { | |
994 FreeHeap(value); | |
995 } | |
996 return true; | |
691 | 997 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 998 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
999 // its value without going through the property list or making a Java call. | |
1000 _java_vendor_url_bug = value; | |
691 | 1001 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1002 PropertyList_unique_add(&_system_properties, key, value, true); | |
1003 return true; | |
0 | 1004 } |
1005 // Create new property and add at the end of the list | |
1006 PropertyList_unique_add(&_system_properties, key, value); | |
1007 return true; | |
1008 } | |
1009 | |
1010 //=========================================================================================================== | |
1011 // Setting int/mixed/comp mode flags | |
1012 | |
1013 void Arguments::set_mode_flags(Mode mode) { | |
1014 // Set up default values for all flags. | |
1015 // If you add a flag to any of the branches below, | |
1016 // add a default value for it here. | |
1017 set_java_compiler(false); | |
1018 _mode = mode; | |
1019 | |
1020 // Ensure Agent_OnLoad has the correct initial values. | |
1021 // This may not be the final mode; mode may change later in onload phase. | |
1022 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1023 (char*)VM_Version::vm_info_string(), false); |
0 | 1024 |
1025 UseInterpreter = true; | |
1026 UseCompiler = true; | |
1027 UseLoopCounter = true; | |
1028 | |
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1029 #ifndef ZERO |
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1030 // Turn these off for mixed and comp. Leave them on for Zero. |
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1031 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1032 UseFastAccessorMethods = (mode == _int); |
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1033 } |
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1034 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1035 UseFastEmptyMethods = (mode == _int); |
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1036 } |
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1037 #endif |
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1038 |
0 | 1039 // Default values may be platform/compiler dependent - |
1040 // use the saved values | |
1041 ClipInlining = Arguments::_ClipInlining; | |
1042 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1043 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1044 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1045 | |
1046 // Change from defaults based on mode | |
1047 switch (mode) { | |
1048 default: | |
1049 ShouldNotReachHere(); | |
1050 break; | |
1051 case _int: | |
1052 UseCompiler = false; | |
1053 UseLoopCounter = false; | |
1054 AlwaysCompileLoopMethods = false; | |
1055 UseOnStackReplacement = false; | |
1056 break; | |
1057 case _mixed: | |
1058 // same as default | |
1059 break; | |
1060 case _comp: | |
1061 UseInterpreter = false; | |
1062 BackgroundCompilation = false; | |
1063 ClipInlining = false; | |
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1064 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1065 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1066 // compile a level 4 (C2) and then continue executing it. |
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1067 if (TieredCompilation) { |
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1068 Tier3InvokeNotifyFreqLog = 0; |
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1069 Tier4InvocationThreshold = 0; |
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1070 } |
0 | 1071 break; |
1072 } | |
1073 } | |
1074 | |
1075 // Conflict: required to use shared spaces (-Xshare:on), but | |
1076 // incompatible command line options were chosen. | |
1077 | |
1078 static void no_shared_spaces() { | |
1079 if (RequireSharedSpaces) { | |
1080 jio_fprintf(defaultStream::error_stream(), | |
1081 "Class data sharing is inconsistent with other specified options.\n"); | |
1082 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1083 } else { | |
1084 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1085 } | |
1086 } | |
1087 | |
1783 | 1088 void Arguments::set_tiered_flags() { |
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1089 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1090 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1091 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1092 } |
1093 if (CompilationPolicyChoice < 2) { | |
1094 vm_exit_during_initialization( | |
1095 "Incompatible compilation policy selected", NULL); | |
1096 } | |
1891
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1097 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1098 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
8043
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1099 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1100 } |
1101 } | |
1102 | |
8001
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1103 #if INCLUDE_ALL_GCS |
4838 | 1104 static void disable_adaptive_size_policy(const char* collector_name) { |
1105 if (UseAdaptiveSizePolicy) { | |
1106 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1107 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1108 collector_name); | |
1109 } | |
1110 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1111 } | |
1112 } | |
1113 | |
0 | 1114 void Arguments::set_parnew_gc_flags() { |
1064 | 1115 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
342
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1116 "control point invariant"); |
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1117 assert(UseParNewGC, "Error"); |
0 | 1118 |
4838 | 1119 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1120 disable_adaptive_size_policy("UseParNewGC"); | |
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1121 |
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1122 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1123 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1124 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1125 } else if (ParallelGCThreads == 0) { |
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1126 jio_fprintf(defaultStream::error_stream(), |
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1127 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1128 vm_exit(1); |
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1129 } |
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1130 |
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1131 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1132 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1133 // we set them to 1024 and 1024. |
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1134 // See CR 6362902. |
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1135 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1136 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1137 } |
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1138 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1139 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1140 } |
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1141 |
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1142 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1143 // See CR 6362902. |
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1144 if (AlwaysTenure) { |
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1145 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1146 } |
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1147 // When using compressed oops, we use local overflow stacks, |
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1148 // rather than using a global overflow list chained through |
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1149 // the klass word of the object's pre-image. |
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1150 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1151 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1152 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1153 } |
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1154 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1155 } |
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1156 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1157 } |
1158 | |
1159 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1160 // sparc/solaris for certain applications, but would gain from | |
1161 // further optimization and tuning efforts, and would almost | |
1162 // certainly gain from analysis of platform and environment. | |
1163 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1164 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1165 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1166 |
0 | 1167 // If we are using CMS, we prefer to UseParNewGC, |
1168 // unless explicitly forbidden. | |
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1169 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1170 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1171 } |
1172 | |
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1173 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1174 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1175 |
1176 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1177 // as needed. | |
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1178 if (UseParNewGC) { |
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1179 set_parnew_gc_flags(); |
0 | 1180 } |
1181 | |
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1182 size_t max_heap = align_size_down(MaxHeapSize, |
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1183 CardTableRS::ct_max_alignment_constraint()); |
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1184 |
0 | 1185 // Now make adjustments for CMS |
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1186 intx tenuring_default = (intx)6; |
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1187 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1188 |
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1189 // Preferred young gen size for "short" pauses: |
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1190 // upper bound depends on # of threads and NewRatio. |
0 | 1191 const uintx parallel_gc_threads = |
1192 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1193 const size_t preferred_max_new_size_unaligned = | |
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1194 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1195 size_t preferred_max_new_size = |
0 | 1196 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1197 | |
1198 // Unless explicitly requested otherwise, size young gen | |
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1199 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
886
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1200 |
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1201 // If either MaxNewSize or NewRatio is set on the command line, |
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1202 // assume the user is trying to set the size of the young gen. |
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1203 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1204 |
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1205 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1206 // NewSize was set on the command line and it is larger than |
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1207 // preferred_max_new_size. |
0 | 1208 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1209 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1210 } else { |
13
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1211 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1212 } |
1064 | 1213 if (PrintGCDetails && Verbose) { |
13
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1214 // Too early to use gclog_or_tty |
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1215 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1216 } |
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1217 |
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1218 // Code along this path potentially sets NewSize and OldSize |
1064 | 1219 if (PrintGCDetails && Verbose) { |
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1220 // Too early to use gclog_or_tty |
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1221 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1222 " initial_heap_size: " SIZE_FORMAT |
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1223 " max_heap: " SIZE_FORMAT, |
1064 | 1224 min_heap_size(), InitialHeapSize, max_heap); |
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1225 } |
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1226 size_t min_new = preferred_max_new_size; |
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1227 if (FLAG_IS_CMDLINE(NewSize)) { |
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1228 min_new = NewSize; |
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1229 } |
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1230 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1231 // Unless explicitly requested otherwise, make young gen |
1232 // at least min_new, and at most preferred_max_new_size. | |
1233 if (FLAG_IS_DEFAULT(NewSize)) { | |
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1234 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1235 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1236 if (PrintGCDetails && Verbose) { |
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1237 // Too early to use gclog_or_tty |
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1238 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
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1239 } |
0 | 1240 } |
1241 // Unless explicitly requested otherwise, size old gen | |
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1242 // so it's NewRatio x of NewSize. |
0 | 1243 if (FLAG_IS_DEFAULT(OldSize)) { |
1244 if (max_heap > NewSize) { | |
2368
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1245 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1246 if (PrintGCDetails && Verbose) { |
13
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1247 // Too early to use gclog_or_tty |
2368
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1248 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1249 } |
0 | 1250 } |
1251 } | |
1252 } | |
1253 } | |
1254 // Unless explicitly requested otherwise, definitely | |
1255 // promote all objects surviving "tenuring_default" scavenges. | |
1256 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1257 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1258 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1259 } |
1260 // If we decided above (or user explicitly requested) | |
1261 // `promote all' (via MaxTenuringThreshold := 0), | |
1262 // prefer minuscule survivor spaces so as not to waste | |
1263 // space for (non-existent) survivors | |
1264 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1265 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1266 } |
1267 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1268 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1269 // This is done in order to make ParNew+CMS configuration to work | |
1270 // with YoungPLABSize and OldPLABSize options. | |
1271 // See CR 6362902. | |
1272 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1273 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1274 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1275 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1276 // the value (either from the command line or ergonomics) of |
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1277 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1278 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
1145
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1279 } else { |
0 | 1280 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1281 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1282 // we'll let it to take precedence. | |
1283 jio_fprintf(defaultStream::error_stream(), | |
886
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1284 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1285 " options are specified for the CMS collector." |
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1286 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1287 } |
1288 } | |
1145
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1289 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1290 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1291 // unless it was manually specified. This is because a too-low value |
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1292 // will slow down scavenges. |
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1293 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1294 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1295 } |
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1296 } |
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1297 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1298 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1299 // If either of the static initialization defaults have changed, note this |
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1300 // modification. |
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1301 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1302 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1303 } |
1284 | 1304 if (PrintGCDetails && Verbose) { |
1305 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1306 MarkStackSize / K, MarkStackSizeMax / K); | |
1307 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1308 } | |
0 | 1309 } |
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1310 #endif // INCLUDE_ALL_GCS |
0 | 1311 |
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1312 void set_object_alignment() { |
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1313 // Object alignment. |
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1314 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1315 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1316 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1317 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1318 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1319 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1320 |
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1321 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1322 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1323 |
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1324 // Oop encoding heap max |
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1325 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1326 |
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1327 #if INCLUDE_ALL_GCS |
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1328 // Set CMS global values |
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1329 CompactibleFreeListSpace::set_cms_values(); |
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1330 #endif // INCLUDE_ALL_GCS |
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1331 } |
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1332 |
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1333 bool verify_object_alignment() { |
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1334 // Object alignment. |
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1335 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1336 jio_fprintf(defaultStream::error_stream(), |
1829
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1337 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1338 (int)ObjectAlignmentInBytes); |
1571
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1339 return false; |
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1340 } |
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1341 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1342 jio_fprintf(defaultStream::error_stream(), |
1829
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1343 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1344 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1345 return false; |
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1346 } |
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1347 // It does not make sense to have big object alignment |
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1348 // since a space lost due to alignment will be greater |
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1349 // then a saved space from compressed oops. |
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1350 if ((int)ObjectAlignmentInBytes > 256) { |
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1351 jio_fprintf(defaultStream::error_stream(), |
7461
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1352 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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1353 (int)ObjectAlignmentInBytes); |
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1354 return false; |
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1355 } |
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1356 // In case page size is very small. |
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1357 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1358 jio_fprintf(defaultStream::error_stream(), |
7461
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1359 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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1360 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1361 return false; |
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1362 } |
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1363 return true; |
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1364 } |
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1365 |
135
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1366 inline uintx max_heap_for_compressed_oops() { |
1963 | 1367 // Avoid sign flip. |
6725
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1368 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
1963 | 1369 return 0; |
1370 } | |
6725
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1371 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
1064 | 1372 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1373 } |
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1374 |
0 | 1375 bool Arguments::should_auto_select_low_pause_collector() { |
1376 if (UseAutoGCSelectPolicy && | |
1377 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1378 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1379 if (PrintGCDetails) { | |
1380 // Cannot use gclog_or_tty yet. | |
1381 tty->print_cr("Automatic selection of the low pause collector" | |
1382 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1383 } | |
1384 return true; | |
1385 } | |
1386 return false; | |
1387 } | |
1388 | |
8741
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1389 void Arguments::set_use_compressed_oops() { |
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1390 #ifndef ZERO |
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1391 #ifdef _LP64 |
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1392 // MaxHeapSize is not set up properly at this point, but |
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1393 // the only value that can override MaxHeapSize if we are |
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1394 // to use UseCompressedOops is InitialHeapSize. |
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1395 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1396 |
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1397 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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1398 #if !defined(COMPILER1) || defined(TIERED) |
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1399 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1400 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1401 } |
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1402 #endif |
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1403 #ifdef _WIN64 |
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1404 if (UseLargePages && UseCompressedOops) { |
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1405 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1406 // mode, when large pages are specified on windows. |
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1407 // This flag could be switched ON if narrow oop base address is set to 0, |
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1408 // see code in Universe::initialize_heap(). |
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1409 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1410 } |
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1411 #endif // _WIN64 |
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1412 } else { |
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1413 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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1414 warning("Max heap size too large for Compressed Oops"); |
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1415 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1416 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1417 } |
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1418 } |
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1419 #endif // _LP64 |
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1420 #endif // ZERO |
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1421 } |
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1422 |
0 | 1423 void Arguments::set_ergonomics_flags() { |
1424 | |
4946 | 1425 if (os::is_server_class_machine()) { |
0 | 1426 // If no other collector is requested explicitly, |
1427 // let the VM select the collector based on | |
1428 // machine class and automatic selection policy. | |
1429 if (!UseSerialGC && | |
1430 !UseConcMarkSweepGC && | |
342
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1431 !UseG1GC && |
0 | 1432 !UseParNewGC && |
1433 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1434 if (should_auto_select_low_pause_collector()) { | |
1435 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1436 } else { | |
1437 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1438 } | |
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1439 } |
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1440 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1441 // to be disabled, which hurts interpreter performance and decreases |
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1442 // server performance. On server class machines, keep the default |
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1443 // off unless it is asked for. Future work: either add bytecode rewriting |
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1444 // at link time, or rewrite bytecodes in non-shared methods. |
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1445 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
0 | 1446 no_shared_spaces(); |
1447 } | |
1448 } | |
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1449 |
1010 | 1450 #ifndef ZERO |
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1451 #ifdef _LP64 |
8741
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1452 set_use_compressed_oops(); |
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1453 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1454 if (!UseCompressedOops) { |
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1455 if (UseCompressedKlassPointers) { |
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1456 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1457 } |
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1458 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1459 } else { |
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1460 // Turn on UseCompressedKlassPointers too |
6848
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1461 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1462 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1463 } |
6736
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1464 // Set the ClassMetaspaceSize to something that will not need to be |
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1465 // expanded, since it cannot be expanded. |
7982
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1466 if (UseCompressedKlassPointers) { |
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1467 if (ClassMetaspaceSize > KlassEncodingMetaspaceMax) { |
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|
1468 warning("Class metaspace size is too large for UseCompressedKlassPointers"); |
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1469 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1470 } else if (FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
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1471 // 100,000 classes seems like a good size, so 100M assumes around 1K |
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|
1472 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
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1473 // size per klass. Eventually, this will be parameterized because it |
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1474 // would also be useful to determine the optimal size of the |
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1475 // systemDictionary. |
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|
1476 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
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1477 } |
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1478 } |
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1479 } |
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1480 // Also checks that certain machines are slower with compressed oops |
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1481 // in vm_version initialization code. |
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1482 #endif // _LP64 |
1010 | 1483 #endif // !ZERO |
0 | 1484 } |
1485 | |
1486 void Arguments::set_parallel_gc_flags() { | |
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1487 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1488 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1489 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1490 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1491 } |
4879 | 1492 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1493 |
1494 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1495 // of the physical memory, up to a maximum of 1GB. | |
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|
1496 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
1497 Abstract_VM_Version::parallel_worker_threads()); |
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|
1498 if (ParallelGCThreads == 0) { |
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|
1499 jio_fprintf(defaultStream::error_stream(), |
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1500 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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|
1501 vm_exit(1); |
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|
1502 } |
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|
1503 |
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|
1504 |
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|
1505 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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|
1506 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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|
1507 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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|
1508 // See CR 6362902 for details. |
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|
1509 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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|
1510 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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|
1511 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1512 } |
7471
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|
1513 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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|
1514 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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|
1515 } |
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|
1516 } |
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1517 |
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|
1518 if (UseParallelOldGC) { |
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|
1519 // Par compact uses lower default values since they are treated as |
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|
1520 // minimums. These are different defaults because of the different |
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1521 // interpretation and are not ergonomically set. |
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1522 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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|
1523 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1524 } |
1525 } | |
1526 } | |
1527 | |
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1528 void Arguments::set_g1_gc_flags() { |
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1529 assert(UseG1GC, "Error"); |
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1530 #if defined(COMPILER1) || defined(GRAAL) |
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1531 FastTLABRefill = false; |
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1532 #endif |
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1533 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1534 Abstract_VM_Version::parallel_worker_threads()); |
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1535 if (ParallelGCThreads == 0) { |
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1536 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1537 Abstract_VM_Version::parallel_worker_threads()); |
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1538 } |
751 | 1539 |
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1540 // MarkStackSize will be set (if it hasn't been set by the user) |
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1541 // when concurrent marking is initialized. |
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1542 // Its value will be based upon the number of parallel marking threads. |
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1543 // But we do set the maximum mark stack size here. |
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1544 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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|
1545 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1546 } |
1356 | 1547 |
1548 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1549 // In G1, we want the default GC overhead goal to be higher than | |
1550 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1551 // be expanded more aggressively than we would like it to. In | |
1552 // fact, even 10% seems to not be high enough in some cases | |
1553 // (especially small GC stress tests that the main thing they do | |
1554 // is allocation). We might consider increase it further. | |
1555 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1556 } | |
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1557 |
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1558 if (PrintGCDetails && Verbose) { |
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|
1559 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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|
1560 MarkStackSize / K, MarkStackSizeMax / K); |
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|
1561 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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|
1562 } |
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|
1563 } |
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1564 |
8854
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|
1565 julong Arguments::limit_by_allocatable_memory(julong limit) { |
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|
1566 julong max_allocatable; |
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|
1567 julong result = limit; |
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|
1568 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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|
1569 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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|
1570 } |
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|
1571 return result; |
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|
1572 } |
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|
1573 |
1064 | 1574 void Arguments::set_heap_size() { |
1575 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1576 // Deprecated flag | |
1577 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1578 } | |
1579 | |
1580 const julong phys_mem = | |
1581 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1582 : (julong)MaxRAM; | |
1583 | |
1584 // If the maximum heap size has not been set with -Xmx, | |
1585 // then set it as fraction of the size of physical memory, | |
1586 // respecting the maximum and minimum sizes of the heap. | |
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|
1587 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1588 julong reasonable_max = phys_mem / MaxRAMFraction; |
1589 | |
1590 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1591 // Small physical memory, so use a minimum fraction of it for the heap | |
1592 reasonable_max = phys_mem / MinRAMFraction; | |
1593 } else { | |
1594 // Not-small physical memory, so require a heap at least | |
1595 // as large as MaxHeapSize | |
1596 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1597 } | |
1598 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1599 // Limit the heap size to ErgoHeapSizeLimit | |
1600 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
342
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|
1601 } |
1064 | 1602 if (UseCompressedOops) { |
1603 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1604 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1605 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1606 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1607 // but it should be not less than default MaxHeapSize. | |
1608 max_coop_heap -= HeapBaseMinAddress; | |
1609 } | |
1610 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1611 } |
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|
1612 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1613 |
1614 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1615 // An initial heap size was specified on the command line, | |
1616 // so be sure that the maximum size is consistent. Done | |
8854
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|
1617 // after call to limit_by_allocatable_memory because that |
1064 | 1618 // method might reduce the allocation size. |
1619 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1620 } | |
1621 | |
342
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|
1622 if (PrintGCDetails && Verbose) { |
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|
1623 // Cannot use gclog_or_tty yet. |
1064 | 1624 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1625 } |
1064 | 1626 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1627 } | |
1628 | |
1629 // If the initial_heap_size has not been set with InitialHeapSize | |
1630 // or -Xms, then set it as fraction of the size of physical memory, | |
1631 // respecting the maximum and minimum sizes of the heap. | |
1632 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1074
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|
1633 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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|
1634 |
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|
1635 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1636 |
8854
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|
1637 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
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|
1638 |
1064 | 1639 julong reasonable_initial = phys_mem / InitialRAMFraction; |
1640 | |
1074
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|
1641 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
1064 | 1642 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
1643 | |
8854
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|
1644 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
1064 | 1645 |
1646 if (PrintGCDetails && Verbose) { | |
1647 // Cannot use gclog_or_tty yet. | |
1648 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
1074
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|
1649 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
342
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|
1650 } |
1064 | 1651 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
1074
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|
1652 set_min_heap_size((uintx)reasonable_minimum); |
342
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|
1653 } |
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diff
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|
1654 } |
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|
1655 |
0 | 1656 // This must be called after ergonomics because we want bytecode rewriting |
1657 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1658 void Arguments::set_bytecode_flags() { | |
1659 // Better not attempt to store into a read-only space. | |
1660 if (UseSharedSpaces) { | |
1661 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1662 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1663 } | |
1664 | |
1665 if (!RewriteBytecodes) { | |
1666 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1667 } | |
1668 } | |
1669 | |
1670 // Aggressive optimization flags -XX:+AggressiveOpts | |
1671 void Arguments::set_aggressive_opts_flags() { | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
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|
1672 #ifdef COMPILER2 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1673 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1674 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1675 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1676 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1677 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1678 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1679 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1680 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1681 // Feed the cache size setting into the JDK |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1682 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1683 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1684 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1685 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1686 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1687 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1688 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1689 #endif |
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parents:
0
diff
changeset
|
1690 |
0 | 1691 if (AggressiveOpts) { |
61 | 1692 // Sample flag setting code |
1693 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1694 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1695 // } | |
0 | 1696 } |
1697 } | |
1698 | |
1699 //=========================================================================================================== | |
1700 // Parsing of java.compiler property | |
1701 | |
1702 void Arguments::process_java_compiler_argument(char* arg) { | |
1703 // For backwards compatibility, Djava.compiler=NONE or "" | |
1704 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1705 // is also specified. | |
1706 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1707 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1708 } | |
1709 } | |
1710 | |
1711 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1712 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1713 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1714 _created_by_gamma_launcher = true; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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2243
diff
changeset
|
1715 } |
0 | 1716 } |
1717 | |
1718 bool Arguments::created_by_java_launcher() { | |
1719 assert(_sun_java_launcher != NULL, "property must have value"); | |
1720 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1721 } | |
1722 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1723 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1724 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1725 } |
da091bb67459
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2243
diff
changeset
|
1726 |
0 | 1727 //=========================================================================================================== |
1728 // Parsing of main arguments | |
1729 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1730 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
|
1731 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
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|
1732 // Returns true iff value is in the inclusive interval [min..max] |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1733 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1734 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1735 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1736 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1737 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1738 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1739 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
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|
1740 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1741 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1742 } |
745c853ee57f
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diff
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|
1743 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1744 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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diff
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|
1745 // 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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|
1746 // 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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|
1747 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1748 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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|
1749 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1750 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1751 "%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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parents:
1681
diff
changeset
|
1752 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1753 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
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|
1754 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
changeset
|
1755 |
0 | 1756 bool Arguments::verify_percentage(uintx value, const char* name) { |
1757 if (value <= 100) { | |
1758 return true; | |
1759 } | |
1760 jio_fprintf(defaultStream::error_stream(), | |
1761 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1762 name, value); | |
1763 return false; | |
1764 } | |
1765 | |
1766 static bool verify_serial_gc_flags() { | |
1767 return (UseSerialGC && | |
945
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1768 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
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1769 UseParallelGC || UseParallelOldGC)); |
0 | 1770 } |
1771 | |
3767
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1772 // check if do gclog rotation |
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1773 // +UseGCLogFileRotation is a must, |
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1774 // no gc log rotation when log file not supplied or |
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1775 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
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1776 void check_gclog_consistency() { |
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1777 if (UseGCLogFileRotation) { |
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1778 if ((Arguments::gc_log_filename() == NULL) || |
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1779 (NumberOfGCLogFiles == 0) || |
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1780 (GCLogFileSize == 0)) { |
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1781 jio_fprintf(defaultStream::output_stream(), |
3769
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|
1782 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
3767
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1783 "where num_of_file > 0 and num_of_size > 0\n" |
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1784 "GC log rotation is turned off\n"); |
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1785 UseGCLogFileRotation = false; |
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1786 } |
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1787 } |
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1788 |
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1789 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
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1790 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
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1791 jio_fprintf(defaultStream::output_stream(), |
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1792 "GCLogFileSize changed to minimum 8K\n"); |
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1793 } |
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1794 } |
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1795 |
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1796 // Check consistency of GC selection |
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1797 bool Arguments::check_gc_consistency() { |
3767
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1798 check_gclog_consistency(); |
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1799 bool status = true; |
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1800 // Ensure that the user has not selected conflicting sets |
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1801 // of collectors. [Note: this check is merely a user convenience; |
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1802 // collectors over-ride each other so that only a non-conflicting |
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1803 // set is selected; however what the user gets is not what they |
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1804 // may have expected from the combination they asked for. It's |
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1805 // better to reduce user confusion by not allowing them to |
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|
1806 // select conflicting combinations. |
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|
1807 uint i = 0; |
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|
1808 if (UseSerialGC) i++; |
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1809 if (UseConcMarkSweepGC || UseParNewGC) i++; |
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1810 if (UseParallelGC || UseParallelOldGC) i++; |
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1811 if (UseG1GC) i++; |
10
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1812 if (i > 1) { |
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1813 jio_fprintf(defaultStream::error_stream(), |
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1814 "Conflicting collector combinations in option list; " |
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1815 "please refer to the release notes for the combinations " |
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|
1816 "allowed\n"); |
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1817 status = false; |
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1818 } |
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|
1819 |
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1820 return status; |
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1821 } |
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1822 |
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1823 void Arguments::check_deprecated_gcs() { |
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1824 if (UseConcMarkSweepGC && !UseParNewGC) { |
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1825 warning("Using the DefNew young collector with the CMS collector is deprecated " |
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1826 "and will likely be removed in a future release"); |
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1827 } |
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1828 |
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1829 if (UseParNewGC && !UseConcMarkSweepGC) { |
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1830 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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1831 // set up UseSerialGC properly, so that can't be used in the check here. |
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1832 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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1833 "and will likely be removed in a future release"); |
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1834 } |
7453 | 1835 |
1836 if (CMSIncrementalMode) { | |
1837 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1838 } | |
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1839 } |
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1840 |
8734 | 1841 void Arguments::check_deprecated_gc_flags() { |
1842 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1843 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1844 "and will likely be removed in future release"); | |
1845 } | |
1846 } | |
1847 | |
1744
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1848 // Check stack pages settings |
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1849 bool Arguments::check_stack_pages() |
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1850 { |
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1851 bool status = true; |
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1852 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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1853 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
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1854 // greater stack shadow pages can't generate instruction to bang stack |
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1855 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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1856 return status; |
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1857 } |
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1858 |
0 | 1859 // Check the consistency of vm_init_args |
1860 bool Arguments::check_vm_args_consistency() { | |
1861 // Method for adding checks for flag consistency. | |
1862 // The intent is to warn the user of all possible conflicts, | |
1863 // before returning an error. | |
1864 // Note: Needs platform-dependent factoring. | |
1865 bool status = true; | |
1866 | |
1867 #if ( (defined(COMPILER2) && defined(SPARC))) | |
1868 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
1869 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
1870 // x86. Normally, VM_Version_init must be called from init_globals in | |
1871 // init.cpp, which is called by the initial java thread *after* arguments | |
1872 // have been parsed. VM_Version_init gets called twice on sparc. | |
1873 extern void VM_Version_init(); | |
1874 VM_Version_init(); | |
1875 if (!VM_Version::has_v9()) { | |
1876 jio_fprintf(defaultStream::error_stream(), | |
1877 "V8 Machine detected, Server requires V9\n"); | |
1878 status = false; | |
1879 } | |
1880 #endif /* COMPILER2 && SPARC */ | |
1881 | |
1882 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1883 // builds so the cost of stack banging can be measured. | |
1884 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1885 if (!UseBoundThreads && !UseStackBanging) { | |
1886 jio_fprintf(defaultStream::error_stream(), | |
1887 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1888 | |
1889 status = false; | |
1890 } | |
1891 #endif | |
1892 | |
1893 if (TLABRefillWasteFraction == 0) { | |
1894 jio_fprintf(defaultStream::error_stream(), | |
1895 "TLABRefillWasteFraction should be a denominator, " | |
1896 "not " SIZE_FORMAT "\n", | |
1897 TLABRefillWasteFraction); | |
1898 status = false; | |
1899 } | |
1900 | |
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1901 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
0 | 1902 "AdaptiveSizePolicyWeight"); |
10
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1903 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1904 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1905 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1906 |
6982
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1907 // Divide by bucket size to prevent a large size from causing rollover when |
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1908 // calculating amount of memory needed to be allocated for the String table. |
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1909 status = status && verify_interval(StringTableSize, defaultStringTableSize, |
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1910 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1911 |
0 | 1912 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1913 jio_fprintf(defaultStream::error_stream(), | |
1914 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1915 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1916 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1917 status = false; | |
1918 } | |
1919 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1920 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1921 | |
8040
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1922 // Min/MaxMetaspaceFreeRatio |
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1923 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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1924 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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1925 |
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1926 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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1927 jio_fprintf(defaultStream::error_stream(), |
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1928 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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1929 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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1930 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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1931 MinMetaspaceFreeRatio, |
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1932 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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1933 MaxMetaspaceFreeRatio); |
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1934 status = false; |
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1935 } |
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1936 |
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1937 // Trying to keep 100% free is not practical |
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|
1938 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
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8037
diff
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|
1939 |
0 | 1940 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
1941 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1942 } | |
1943 | |
483
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jcoomes
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diff
changeset
|
1944 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1945 // Settings to encourage splitting. |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1946 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 1947 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1948 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1949 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1950 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
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|
1951 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1952 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
1953 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
changeset
|
1954 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
changeset
|
1955 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1956 if (GCTimeLimit == 100) { |
1957 // Turn off gc-overhead-limit-exceeded checks | |
1958 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
1959 } | |
1960 | |
10
28372612af5e
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jmasa
parents:
0
diff
changeset
|
1961 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
0 | 1962 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1963 status = status && check_gc_consistency(); |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1964 status = status && check_stack_pages(); |
0 | 1965 |
1966 if (_has_alloc_profile) { | |
1967 if (UseParallelGC || UseParallelOldGC) { | |
1968 jio_fprintf(defaultStream::error_stream(), | |
1969 "error: invalid argument combination.\n" | |
1970 "Allocation profiling (-Xaprof) cannot be used together with " | |
1971 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
1972 status = false; | |
1973 } | |
1974 if (UseConcMarkSweepGC) { | |
1975 jio_fprintf(defaultStream::error_stream(), | |
1976 "error: invalid argument combination.\n" | |
1977 "Allocation profiling (-Xaprof) cannot be used together with " | |
1978 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
1979 status = false; | |
1980 } | |
1981 } | |
1982 | |
1983 if (CMSIncrementalMode) { | |
1984 if (!UseConcMarkSweepGC) { | |
1985 jio_fprintf(defaultStream::error_stream(), | |
1986 "error: invalid argument combination.\n" | |
1987 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
1988 "selected in order\nto use CMSIncrementalMode.\n"); | |
1989 status = false; | |
1990 } else { | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1991 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 1992 "CMSIncrementalDutyCycle"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1993 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 1994 "CMSIncrementalDutyCycleMin"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1995 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 1996 "CMSIncrementalSafetyFactor"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1997 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 1998 "CMSIncrementalOffset"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1999 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2000 "CMSExpAvgFactor"); |
2001 // If it was not set on the command line, set | |
2002 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2003 if (CMSInitiatingOccupancyFraction < 0) { | |
2004 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2005 } | |
2006 } | |
2007 } | |
2008 | |
2009 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2010 // insists that we hold the requisite locks so that the iteration is | |
2011 // MT-safe. For the verification at start-up and shut-down, we don't | |
2012 // yet have a good way of acquiring and releasing these locks, | |
2013 // which are not visible at the CollectedHeap level. We want to | |
2014 // be able to acquire these locks and then do the iteration rather | |
2015 // than just disable the lock verification. This will be fixed under | |
2016 // bug 4788986. | |
2017 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
2018 if (VerifyGCStartAt == 0) { | |
2019 warning("Heap verification at start-up disabled " | |
2020 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2021 VerifyGCStartAt = 1; // Disable verification at start-up | |
2022 } | |
2023 if (VerifyBeforeExit) { | |
2024 warning("Heap verification at shutdown disabled " | |
2025 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2026 VerifyBeforeExit = false; // Disable verification at shutdown | |
2027 } | |
2028 } | |
2029 | |
2030 // Note: only executed in non-PRODUCT mode | |
2031 if (!UseAsyncConcMarkSweepGC && | |
2032 (ExplicitGCInvokesConcurrent || | |
2033 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2034 jio_fprintf(defaultStream::error_stream(), | |
6628
bb3f6194fedb
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
brutisso
parents:
6266
diff
changeset
|
2035 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2036 " with -UseAsyncConcMarkSweepGC"); |
2037 status = false; | |
2038 } | |
2039 | |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2040 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2041 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2042 #if INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2043 if (UseG1GC) { |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2044 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2045 "InitiatingHeapOccupancyPercent"); |
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2046 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2047 "G1RefProcDrainInterval"); |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2048 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2049 "G1ConcMarkStepDurationMillis"); |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2050 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2051 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2052 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2053 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2054 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2055 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2056 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2057 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2058 // 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
|
2059 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2060 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2061 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2062 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2063 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
|
2064 |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2065 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
|
2066 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2067 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2068 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2069 1, (max_jint - 1), "MarkStackSizeMax"); |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2070 |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2071 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2072 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2073 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2074 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2075 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2076 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2077 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2078 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2079 " 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
|
2080 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2081 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2082 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2083 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2084 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2085 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2086 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2087 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2088 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
|
2089 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2090 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2091 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2092 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2093 } |
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
|
2094 #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
|
2095 if (UseCompressedOops) { |
8393
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2096 if (IgnoreUnrecognizedVMOptions) { |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2097 warning("UseCompressedOops is disabled, because it is not supported by Graal"); |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2098 FLAG_SET_CMDLINE(bool, UseCompressedOops, false); |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2099 } else { |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2100 jio_fprintf(defaultStream::error_stream(), |
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
|
2101 "CompressedOops are not supported in Graal at the moment\n"); |
8393
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2102 status = false; |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2103 } |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2104 } else { |
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2105 // This prevents the flag being set to true by set_ergonomics_flags() |
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2106 FLAG_SET_CMDLINE(bool, UseCompressedOops, false); |
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
|
2107 } |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2108 |
6995
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2109 if (UseCompressedKlassPointers) { |
8393
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2110 if (IgnoreUnrecognizedVMOptions) { |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2111 warning("UseCompressedKlassPointers is disabled, because it is not supported by Graal"); |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2112 FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false); |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2113 } else { |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2114 jio_fprintf(defaultStream::error_stream(), |
6995
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2115 "UseCompressedKlassPointers are not supported in Graal at the moment\n"); |
8393
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If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2116 status = false; |
0e2c530885d1
If IgnoreUnrecognizedVMOptions is set then the Graal checks for unsupported options is just a warning instead of an error
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
8213
diff
changeset
|
2117 } |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2118 } else { |
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2119 // This prevents the flag being set to true by set_ergonomics_flags() |
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2120 FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false); |
6995
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2121 } |
8507
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2122 if (UseG1GC) { |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2123 if (IgnoreUnrecognizedVMOptions) { |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2124 warning("UseG1GC is still experimental in Graal, use SerialGC instead "); |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2125 FLAG_SET_CMDLINE(bool, UseG1GC, true); |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2126 } else { |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2127 warning("UseG1GC is still experimental in Graal, use SerialGC instead "); |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2128 status = true; |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2129 } |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2130 } else { |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2131 // This prevents the flag being set to true by set_ergonomics_flags() |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2132 FLAG_SET_CMDLINE(bool, UseG1GC, false); |
c92949b1ec8a
-Changes after CR-243
Christos Kotselidis <christos.kotselidis@oracle.com>
parents:
8506
diff
changeset
|
2133 } |
6948
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2134 |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2135 if (!ScavengeRootsInCode) { |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2136 warning("forcing ScavengeRootsInCode non-zero because Graal is enabled"); |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2137 ScavengeRootsInCode = 1; |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2138 } |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2139 |
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
|
2140 #endif |
0 | 2141 return status; |
2142 } | |
2143 | |
2144 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2145 const char* option_type) { | |
2146 if (ignore) return false; | |
2147 | |
2148 const char* spacer = " "; | |
2149 if (option_type == NULL) { | |
2150 option_type = ++spacer; // Set both to the empty string. | |
2151 } | |
2152 | |
2153 if (os::obsolete_option(option)) { | |
2154 jio_fprintf(defaultStream::error_stream(), | |
2155 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2156 option->optionString); | |
2157 return false; | |
2158 } else { | |
2159 jio_fprintf(defaultStream::error_stream(), | |
2160 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2161 option->optionString); | |
2162 return true; | |
2163 } | |
2164 } | |
2165 | |
2166 static const char* user_assertion_options[] = { | |
2167 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2168 }; | |
2169 | |
2170 static const char* system_assertion_options[] = { | |
2171 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2172 }; | |
2173 | |
2174 // Return true if any of the strings in null-terminated array 'names' matches. | |
2175 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2176 // the option must match exactly. | |
2177 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2178 bool tail_allowed) { | |
2179 for (/* empty */; *names != NULL; ++names) { | |
2180 if (match_option(option, *names, tail)) { | |
2181 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2182 return true; | |
2183 } | |
2184 } | |
2185 } | |
2186 return false; | |
2187 } | |
2188 | |
1284 | 2189 bool Arguments::parse_uintx(const char* value, |
2190 uintx* uintx_arg, | |
2191 uintx min_size) { | |
2192 | |
2193 // Check the sign first since atomull() parses only unsigned values. | |
2194 bool value_is_positive = !(*value == '-'); | |
2195 | |
2196 if (value_is_positive) { | |
2197 julong n; | |
2198 bool good_return = atomull(value, &n); | |
2199 if (good_return) { | |
2200 bool above_minimum = n >= min_size; | |
2201 bool value_is_too_large = n > max_uintx; | |
2202 | |
2203 if (above_minimum && !value_is_too_large) { | |
2204 *uintx_arg = n; | |
2205 return true; | |
2206 } | |
2207 } | |
2208 } | |
2209 return false; | |
2210 } | |
2211 | |
0 | 2212 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
|
2213 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2214 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2215 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2216 return check_memory_size(*long_arg, min_size); |
2217 } | |
2218 | |
2219 // Parse JavaVMInitArgs structure | |
2220 | |
2221 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2222 // For components of the system classpath. | |
2223 SysClassPath scp(Arguments::get_sysclasspath()); | |
2224 bool scp_assembly_required = false; | |
2225 | |
2226 // Save default settings for some mode flags | |
2227 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2228 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2229 Arguments::_ClipInlining = ClipInlining; | |
2230 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2231 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2232 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2233 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
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parents:
3261
diff
changeset
|
2234 |
0 | 2235 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2236 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2237 if (result != JNI_OK) { | |
2238 return result; | |
2239 } | |
2240 | |
2241 // Parse JavaVMInitArgs structure passed in | |
2242 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2243 if (result != JNI_OK) { | |
2244 return result; | |
2245 } | |
2246 | |
531
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6792705: Add JAR file to bootclasspath when using AggressiveOpts
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diff
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|
2247 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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513
diff
changeset
|
2248 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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parents:
513
diff
changeset
|
2249 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
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diff
changeset
|
2250 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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513
diff
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|
2251 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
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513
diff
changeset
|
2252 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
|
2253 strlen(altclasses_jar); |
6197 | 2254 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
|
2255 strcpy(altclasses_path, get_meta_index_dir()); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2256 strcat(altclasses_path, altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2257 scp.add_suffix_to_prefix(altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2258 scp_assembly_required = true; |
6197 | 2259 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2260 } |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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513
diff
changeset
|
2261 |
0 | 2262 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2263 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2264 if (result != JNI_OK) { | |
2265 return result; | |
2266 } | |
2267 | |
2268 // Do final processing now that all arguments have been parsed | |
2269 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2270 if (result != JNI_OK) { | |
2271 return result; | |
2272 } | |
2273 | |
2274 return JNI_OK; | |
2275 } | |
2276 | |
2277 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
2278 SysClassPath* scp_p, | |
2279 bool* scp_assembly_required_p, | |
2280 FlagValueOrigin origin) { | |
2281 // Remaining part of option string | |
2282 const char* tail; | |
2283 | |
2284 // iterate over arguments | |
2285 for (int index = 0; index < args->nOptions; index++) { | |
2286 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2287 | |
2288 const JavaVMOption* option = args->options + index; | |
2289 | |
2290 if (!match_option(option, "-Djava.class.path", &tail) && | |
2291 !match_option(option, "-Dsun.java.command", &tail) && | |
2292 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2293 | |
2294 // add all jvm options to the jvm_args string. This string | |
2295 // is used later to set the java.vm.args PerfData string constant. | |
2296 // the -Djava.class.path and the -Dsun.java.command options are | |
2297 // omitted from jvm_args string as each have their own PerfData | |
2298 // string constant object. | |
2299 build_jvm_args(option->optionString); | |
2300 } | |
2301 | |
2302 // -verbose:[class/gc/jni] | |
2303 if (match_option(option, "-verbose", &tail)) { | |
2304 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2305 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2306 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2307 } else if (!strcmp(tail, ":gc")) { | |
2308 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2309 } else if (!strcmp(tail, ":jni")) { | |
2310 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2311 } | |
2312 // -da / -ea / -disableassertions / -enableassertions | |
2313 // These accept an optional class/package name separated by a colon, e.g., | |
2314 // -da:java.lang.Thread. | |
2315 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2316 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2317 if (*tail == '\0') { | |
2318 JavaAssertions::setUserClassDefault(enable); | |
2319 } else { | |
2320 assert(*tail == ':', "bogus match by match_option()"); | |
2321 JavaAssertions::addOption(tail + 1, enable); | |
2322 } | |
2323 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2324 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2325 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2326 JavaAssertions::setSystemClassDefault(enable); | |
2327 // -bootclasspath: | |
2328 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2329 scp_p->reset_path(tail); | |
2330 *scp_assembly_required_p = true; | |
2331 // -bootclasspath/a: | |
2332 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2333 scp_p->add_suffix(tail); | |
2334 *scp_assembly_required_p = true; | |
2335 // -bootclasspath/p: | |
2336 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2337 scp_p->add_prefix(tail); | |
2338 *scp_assembly_required_p = true; | |
2339 // -Xrun | |
2340 } else if (match_option(option, "-Xrun", &tail)) { | |
531
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6792705: Add JAR file to bootclasspath when using AggressiveOpts
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513
diff
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|
2341 if (tail != NULL) { |
0 | 2342 const char* pos = strchr(tail, ':'); |
2343 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2344 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2345 name[len] = '\0'; |
2346 | |
2347 char *options = NULL; | |
2348 if(pos != NULL) { | |
2349 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2350 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2351 } |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
changeset
|
2352 #if !INCLUDE_JVMTI |
0 | 2353 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
8720
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8105
diff
changeset
|
2354 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
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8105
diff
changeset
|
2355 "Profiling and debugging agents are not supported in this VM\n"); |
fad90b102190
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jprovino
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8105
diff
changeset
|
2356 return JNI_ERR; |
fad90b102190
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8105
diff
changeset
|
2357 } |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
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6818
diff
changeset
|
2358 #endif // !INCLUDE_JVMTI |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
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8105
diff
changeset
|
2359 add_init_library(name, options); |
0 | 2360 } |
2361 // -agentlib and -agentpath | |
2362 } else if (match_option(option, "-agentlib:", &tail) || | |
2363 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2364 if(tail != NULL) { | |
2365 const char* pos = strchr(tail, '='); | |
2366 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2367 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2368 name[len] = '\0'; |
2369 | |
2370 char *options = NULL; | |
2371 if(pos != NULL) { | |
6197 | 2372 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2373 } |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
changeset
|
2374 #if !INCLUDE_JVMTI |
0 | 2375 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
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8105
diff
changeset
|
2376 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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8105
diff
changeset
|
2377 "Profiling and debugging agents are not supported in this VM\n"); |
fad90b102190
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jprovino
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8105
diff
changeset
|
2378 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
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8105
diff
changeset
|
2379 } |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
changeset
|
2380 #endif // !INCLUDE_JVMTI |
0 | 2381 add_init_agent(name, options, is_absolute_path); |
2382 } | |
2383 // -javaagent | |
2384 } else if (match_option(option, "-javaagent:", &tail)) { | |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
changeset
|
2385 #if !INCLUDE_JVMTI |
8720
fad90b102190
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8105
diff
changeset
|
2386 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
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jprovino
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8105
diff
changeset
|
2387 "Instrumentation 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
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8105
diff
changeset
|
2388 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
changeset
|
2389 #else |
0 | 2390 if(tail != NULL) { |
6197 | 2391 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2392 add_init_agent("instrument", options, false); |
2393 } | |
6854
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6818
diff
changeset
|
2394 #endif // !INCLUDE_JVMTI |
0 | 2395 // -Xnoclassgc |
2396 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2397 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2398 // -Xincgc: i-CMS | |
2399 } else if (match_option(option, "-Xincgc", &tail)) { | |
2400 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2401 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2402 // -Xnoincgc: no i-CMS | |
2403 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2404 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2405 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2406 // -Xconcgc | |
2407 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2408 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2409 // -Xnoconcgc | |
2410 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2411 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2412 // -Xbatch | |
2413 } else if (match_option(option, "-Xbatch", &tail)) { | |
2414 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2415 // -Xmn for compatibility with other JVM vendors | |
2416 } else if (match_option(option, "-Xmn", &tail)) { | |
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2417 julong long_initial_eden_size = 0; |
0 | 2418 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2419 if (errcode != arg_in_range) { | |
2420 jio_fprintf(defaultStream::error_stream(), | |
2421 "Invalid initial eden size: %s\n", option->optionString); | |
2422 describe_range_error(errcode); | |
2423 return JNI_EINVAL; | |
2424 } | |
1064 | 2425 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2426 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2427 // -Xms |
2428 } else if (match_option(option, "-Xms", &tail)) { | |
489
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2429 julong long_initial_heap_size = 0; |
0 | 2430 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
2431 if (errcode != arg_in_range) { | |
2432 jio_fprintf(defaultStream::error_stream(), | |
2433 "Invalid initial heap size: %s\n", option->optionString); | |
2434 describe_range_error(errcode); | |
2435 return JNI_EINVAL; | |
2436 } | |
1064 | 2437 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2438 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2439 set_min_heap_size(InitialHeapSize); |
0 | 2440 // -Xmx |
2441 } else if (match_option(option, "-Xmx", &tail)) { | |
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2442 julong long_max_heap_size = 0; |
0 | 2443 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2444 if (errcode != arg_in_range) { | |
2445 jio_fprintf(defaultStream::error_stream(), | |
2446 "Invalid maximum heap size: %s\n", option->optionString); | |
2447 describe_range_error(errcode); | |
2448 return JNI_EINVAL; | |
2449 } | |
1064 | 2450 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2451 // Xmaxf |
2452 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2453 int maxf = (int)(atof(tail) * 100); | |
2454 if (maxf < 0 || maxf > 100) { | |
2455 jio_fprintf(defaultStream::error_stream(), | |
2456 "Bad max heap free percentage size: %s\n", | |
2457 option->optionString); | |
2458 return JNI_EINVAL; | |
2459 } else { | |
2460 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2461 } | |
2462 // Xminf | |
2463 } else if (match_option(option, "-Xminf", &tail)) { | |
2464 int minf = (int)(atof(tail) * 100); | |
2465 if (minf < 0 || minf > 100) { | |
2466 jio_fprintf(defaultStream::error_stream(), | |
2467 "Bad min heap free percentage size: %s\n", | |
2468 option->optionString); | |
2469 return JNI_EINVAL; | |
2470 } else { | |
2471 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2472 } | |
2473 // -Xss | |
2474 } else if (match_option(option, "-Xss", &tail)) { | |
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2475 julong long_ThreadStackSize = 0; |
0 | 2476 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2477 if (errcode != arg_in_range) { | |
2478 jio_fprintf(defaultStream::error_stream(), | |
2479 "Invalid thread stack size: %s\n", option->optionString); | |
2480 describe_range_error(errcode); | |
2481 return JNI_EINVAL; | |
2482 } | |
2483 // Internally track ThreadStackSize in units of 1024 bytes. | |
2484 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2485 round_to((int)long_ThreadStackSize, K) / K); | |
2486 // -Xoss | |
2487 } else if (match_option(option, "-Xoss", &tail)) { | |
2488 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
2489 // -Xmaxjitcodesize | |
2095
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2490 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
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2491 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
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2492 julong long_ReservedCodeCacheSize = 0; |
0 | 2493 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
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2494 (size_t)InitialCodeCacheSize); |
0 | 2495 if (errcode != arg_in_range) { |
2496 jio_fprintf(defaultStream::error_stream(), | |
2095
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|
2497 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
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2498 option->optionString, InitialCodeCacheSize/K); |
0 | 2499 describe_range_error(errcode); |
2500 return JNI_EINVAL; | |
2501 } | |
2502 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
2503 // -green | |
2504 } else if (match_option(option, "-green", &tail)) { | |
2505 jio_fprintf(defaultStream::error_stream(), | |
2506 "Green threads support not available\n"); | |
2507 return JNI_EINVAL; | |
2508 // -native | |
2509 } else if (match_option(option, "-native", &tail)) { | |
2510 // HotSpot always uses native threads, ignore silently for compatibility | |
2511 // -Xsqnopause | |
2512 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2513 // EVM option, ignore silently for compatibility | |
2514 // -Xrs | |
2515 } else if (match_option(option, "-Xrs", &tail)) { | |
2516 // Classic/EVM option, new functionality | |
2517 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2518 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2519 // change default internal VM signals used - lower case for back compat | |
2520 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2521 // -Xoptimize | |
2522 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2523 // EVM option, ignore silently for compatibility | |
2524 // -Xprof | |
2525 } else if (match_option(option, "-Xprof", &tail)) { | |
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2526 #if INCLUDE_FPROF |
0 | 2527 _has_profile = true; |
6854
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2528 #else // INCLUDE_FPROF |
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2529 jio_fprintf(defaultStream::error_stream(), |
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2530 "Flat profiling is not supported in this VM.\n"); |
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2531 return JNI_ERR; |
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2532 #endif // INCLUDE_FPROF |
0 | 2533 // -Xaprof |
2534 } else if (match_option(option, "-Xaprof", &tail)) { | |
2535 _has_alloc_profile = true; | |
2536 // -Xconcurrentio | |
2537 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2538 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2539 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2540 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2541 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2542 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2543 | |
2544 // -Xinternalversion | |
2545 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2546 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2547 VM_Version::internal_vm_info_string()); | |
2548 vm_exit(0); | |
2549 #ifndef PRODUCT | |
2550 // -Xprintflags | |
2551 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2552 CommandLineFlags::printFlags(tty, false); |
0 | 2553 vm_exit(0); |
2554 #endif | |
2555 // -D | |
2556 } else if (match_option(option, "-D", &tail)) { | |
2557 if (!add_property(tail)) { | |
2558 return JNI_ENOMEM; | |
2559 } | |
2560 // Out of the box management support | |
2561 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
579f6adb7f51
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8002
diff
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|
2562 #if INCLUDE_MANAGEMENT |
0 | 2563 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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|
2564 #else |
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2565 jio_fprintf(defaultStream::output_stream(), |
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|
2566 "-Dcom.sun.management is not supported in this VM.\n"); |
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8105
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|
2567 return JNI_ERR; |
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diff
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|
2568 #endif |
0 | 2569 } |
2570 // -Xint | |
2571 } else if (match_option(option, "-Xint", &tail)) { | |
2572 set_mode_flags(_int); | |
2573 // -Xmixed | |
2574 } else if (match_option(option, "-Xmixed", &tail)) { | |
2575 set_mode_flags(_mixed); | |
2576 // -Xcomp | |
2577 } else if (match_option(option, "-Xcomp", &tail)) { | |
2578 // for testing the compiler; turn off all flags that inhibit compilation | |
2579 set_mode_flags(_comp); | |
2580 // -Xshare:dump | |
2581 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2582 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2583 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2584 // -Xshare:on | |
2585 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2586 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2587 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2588 // -Xshare:auto | |
2589 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2590 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2591 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2592 // -Xshare:off | |
2593 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2594 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2595 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2596 // -Xverify | |
2597 } else if (match_option(option, "-Xverify", &tail)) { | |
2598 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2599 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2600 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2601 } else if (strcmp(tail, ":remote") == 0) { | |
2602 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2603 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2604 } else if (strcmp(tail, ":none") == 0) { | |
2605 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2606 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2607 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2608 return JNI_EINVAL; | |
2609 } | |
2610 // -Xdebug | |
2611 } else if (match_option(option, "-Xdebug", &tail)) { | |
2612 // note this flag has been used, then ignore | |
2613 set_xdebug_mode(true); | |
2614 // -Xnoagent | |
2615 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2616 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2617 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2618 // Bind user level threads to kernel threads (Solaris only) | |
2619 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2620 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2621 // Redirect GC output to the file. -Xloggc:<filename> | |
2622 // ostream_init_log(), when called will use this filename | |
2623 // to initialize a fileStream. | |
2624 _gc_log_filename = strdup(tail); | |
2625 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2626 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2627 | |
2628 // JNI hooks | |
2629 } else if (match_option(option, "-Xcheck", &tail)) { | |
2630 if (!strcmp(tail, ":jni")) { | |
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|
2631 #if !INCLUDE_JNI_CHECK |
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|
2632 warning("JNI CHECKING is not supported in this VM"); |
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|
2633 #else |
0 | 2634 CheckJNICalls = true; |
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|
2635 #endif // INCLUDE_JNI_CHECK |
0 | 2636 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2637 "check")) { | |
2638 return JNI_EINVAL; | |
2639 } | |
2640 } else if (match_option(option, "vfprintf", &tail)) { | |
2641 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2642 } else if (match_option(option, "exit", &tail)) { | |
2643 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2644 } else if (match_option(option, "abort", &tail)) { | |
2645 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2646 // -XX:+AggressiveHeap | |
2647 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2648 | |
2649 // This option inspects the machine and attempts to set various | |
2650 // parameters to be optimal for long-running, memory allocation | |
2651 // intensive jobs. It is intended for machines with large | |
2652 // amounts of cpu and memory. | |
2653 | |
2654 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2655 // VM, but we may not be able to represent the total physical memory | |
2656 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2657 // Thus, we need to make sure we're using a julong for intermediate | |
2658 // calculations. | |
2659 julong initHeapSize; | |
2660 julong total_memory = os::physical_memory(); | |
2661 | |
2662 if (total_memory < (julong)256*M) { | |
2663 jio_fprintf(defaultStream::error_stream(), | |
2664 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2665 vm_exit(1); | |
2666 } | |
2667 | |
2668 // The heap size is half of available memory, or (at most) | |
2669 // all of possible memory less 160mb (leaving room for the OS | |
2670 // when using ISM). This is the maximum; because adaptive sizing | |
2671 // is turned on below, the actual space used may be smaller. | |
2672 | |
2673 initHeapSize = MIN2(total_memory / (julong)2, | |
2674 total_memory - (julong)160*M); | |
2675 | |
8854
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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8824
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|
2676 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2677 |
2678 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2679 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2680 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2681 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2682 set_min_heap_size(initHeapSize); |
0 | 2683 } |
2684 if (FLAG_IS_DEFAULT(NewSize)) { | |
2685 // Make the young generation 3/8ths of the total heap. | |
2686 FLAG_SET_CMDLINE(uintx, NewSize, | |
2687 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2688 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2689 } | |
2690 | |
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6916
diff
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|
2691 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2692 FLAG_SET_DEFAULT(UseLargePages, true); |
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|
2693 #endif |
0 | 2694 |
2695 // Increase some data structure sizes for efficiency | |
2696 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2697 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2698 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2699 | |
2700 // See the OldPLABSize comment below, but replace 'after promotion' | |
2701 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2702 // space per-gc-thread buffers. The default is 4kw. | |
2703 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2704 | |
2705 // OldPLABSize is the size of the buffers in the old gen that | |
2706 // UseParallelGC uses to promote live data that doesn't fit in the | |
2707 // survivor spaces. At any given time, there's one for each gc thread. | |
2708 // The default size is 1kw. These buffers are rarely used, since the | |
2709 // survivor spaces are usually big enough. For specjbb, however, there | |
2710 // are occasions when there's lots of live data in the young gen | |
2711 // and we end up promoting some of it. We don't have a definite | |
2712 // explanation for why bumping OldPLABSize helps, but the theory | |
2713 // is that a bigger PLAB results in retaining something like the | |
2714 // original allocation order after promotion, which improves mutator | |
2715 // locality. A minor effect may be that larger PLABs reduce the | |
2716 // number of PLAB allocation events during gc. The value of 8kw | |
2717 // was arrived at by experimenting with specjbb. | |
2718 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2719 | |
2720 // Enable parallel GC and adaptive generation sizing | |
2721 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
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diff
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|
2722 FLAG_SET_DEFAULT(ParallelGCThreads, |
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diff
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|
2723 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2724 |
2725 // Encourage steady state memory management | |
2726 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2727 | |
2728 // This appears to improve mutator locality | |
2729 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2730 | |
2731 // Get around early Solaris scheduling bug | |
2732 // (affinity vs other jobs on system) | |
2733 // but disallow DR and offlining (5008695). | |
2734 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2735 | |
2736 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2737 // The last option must always win. | |
2738 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2739 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2740 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2741 // The last option must always win. | |
2742 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2743 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2744 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2745 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2746 jio_fprintf(defaultStream::error_stream(), | |
2747 "Please use CMSClassUnloadingEnabled in place of " | |
2748 "CMSPermGenSweepingEnabled in the future\n"); | |
2749 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2750 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2751 jio_fprintf(defaultStream::error_stream(), | |
2752 "Please use -XX:+UseGCOverheadLimit in place of " | |
2753 "-XX:+UseGCTimeLimit in the future\n"); | |
2754 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2755 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2756 jio_fprintf(defaultStream::error_stream(), | |
2757 "Please use -XX:-UseGCOverheadLimit in place of " | |
2758 "-XX:-UseGCTimeLimit in the future\n"); | |
2759 // The TLE options are for compatibility with 1.3 and will be | |
2760 // removed without notice in a future release. These options | |
2761 // are not to be documented. | |
2762 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2763 // No longer used. | |
2764 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2765 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2766 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2767 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2768 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2769 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2770 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2771 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2772 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2773 // No longer used. | |
2774 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2775 julong long_tlab_size = 0; |
0 | 2776 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2777 if (errcode != arg_in_range) { | |
2778 jio_fprintf(defaultStream::error_stream(), | |
2779 "Invalid TLAB size: %s\n", option->optionString); | |
2780 describe_range_error(errcode); | |
2781 return JNI_EINVAL; | |
2782 } | |
2783 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2784 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2785 // No longer used. | |
2786 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2787 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2788 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2789 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2790 SOLARIS_ONLY( | |
2791 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
2792 warning("-XX:+UsePermISM is obsolete."); | |
2793 FLAG_SET_CMDLINE(bool, UseISM, true); | |
2794 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
2795 FLAG_SET_CMDLINE(bool, UseISM, false); | |
2796 ) | |
2797 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2798 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2799 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2800 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2801 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2802 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2803 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2804 #if defined(DTRACE_ENABLED) |
0 | 2805 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2806 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2807 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2808 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2809 #else // defined(DTRACE_ENABLED) |
0 | 2810 jio_fprintf(defaultStream::error_stream(), |
4006 | 2811 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2812 return JNI_EINVAL; |
4006 | 2813 #endif // defined(DTRACE_ENABLED) |
0 | 2814 #ifdef ASSERT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2815 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2816 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2817 // disable scavenge before parallel mark-compact | |
2818 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2819 #endif | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2820 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 2821 julong cms_blocks_to_claim = (julong)atol(tail); |
2822 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
2823 jio_fprintf(defaultStream::error_stream(), | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2824 "Please use -XX:OldPLABSize in place of " |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2825 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2826 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2827 julong cms_blocks_to_claim = (julong)atol(tail); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2828 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2829 jio_fprintf(defaultStream::error_stream(), |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2830 "Please use -XX:OldPLABSize in place of " |
0 | 2831 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2832 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2833 julong old_plab_size = 0; |
0 | 2834 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
2835 if (errcode != arg_in_range) { | |
2836 jio_fprintf(defaultStream::error_stream(), | |
2837 "Invalid old PLAB size: %s\n", option->optionString); | |
2838 describe_range_error(errcode); | |
2839 return JNI_EINVAL; | |
2840 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2841 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 2842 jio_fprintf(defaultStream::error_stream(), |
2843 "Please use -XX:OldPLABSize in place of " | |
2844 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2845 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2846 julong young_plab_size = 0; |
0 | 2847 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
2848 if (errcode != arg_in_range) { | |
2849 jio_fprintf(defaultStream::error_stream(), | |
2850 "Invalid young PLAB size: %s\n", option->optionString); | |
2851 describe_range_error(errcode); | |
2852 return JNI_EINVAL; | |
2853 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2854 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 2855 jio_fprintf(defaultStream::error_stream(), |
2856 "Please use -XX:YoungPLABSize in place of " | |
2857 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 2858 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
2859 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
2860 julong stack_size = 0; | |
2861 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
2862 if (errcode != arg_in_range) { | |
2863 jio_fprintf(defaultStream::error_stream(), | |
2864 "Invalid mark stack size: %s\n", option->optionString); | |
2865 describe_range_error(errcode); | |
2866 return JNI_EINVAL; | |
2867 } | |
2868 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
2869 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
2870 julong max_stack_size = 0; | |
2871 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
2872 if (errcode != arg_in_range) { | |
2873 jio_fprintf(defaultStream::error_stream(), | |
2874 "Invalid maximum mark stack size: %s\n", | |
2875 option->optionString); | |
2876 describe_range_error(errcode); | |
2877 return JNI_EINVAL; | |
2878 } | |
2879 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
2880 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
2881 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
2882 uintx conc_threads = 0; | |
2883 if (!parse_uintx(tail, &conc_threads, 1)) { | |
2884 jio_fprintf(defaultStream::error_stream(), | |
2885 "Invalid concurrent threads: %s\n", option->optionString); | |
2886 return JNI_EINVAL; | |
2887 } | |
2888 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2889 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2890 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2891 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
|
2892 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2893 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2894 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2895 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2896 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2897 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2898 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2899 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2900 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2901 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2902 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2903 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
|
2904 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
|
2905 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2906 } 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
|
2907 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
|
2908 "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
|
2909 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2910 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2911 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 2912 // Skip -XX:Flags= since that case has already been handled |
2913 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
2914 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
2915 return JNI_EINVAL; | |
2916 } | |
2917 } | |
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
|
2918 } |
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
|
2919 #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
|
2920 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
|
2921 // 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
|
2922 if (PrintVMOptions) { |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2923 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
|
2924 } |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2925 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
|
2926 |
0 | 2927 // 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
|
2928 } |
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
|
2929 #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
|
2930 else if (is_bad_option(option, args->ignoreUnrecognized)) { |
0 | 2931 return JNI_ERR; |
2932 } | |
2933 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2934 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2935 // 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
|
2936 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2937 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2938 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2939 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2940 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2941 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2942 #endif // LINUX |
0 | 2943 return JNI_OK; |
2944 } | |
2945 | |
2946 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
2947 // This must be done after all -D arguments have been processed. | |
2948 scp_p->expand_endorsed(); | |
2949 | |
2950 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
2951 // Assemble the bootclasspath elements into the final path. | |
2952 Arguments::set_sysclasspath(scp_p->combined_path()); | |
2953 } | |
2954 | |
2955 // This must be done after all arguments have been processed. | |
2956 // java_compiler() true means set to "NONE" or empty. | |
2957 if (java_compiler() && !xdebug_mode()) { | |
2958 // For backwards compatibility, we switch to interpreted mode if | |
2959 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
2960 // not specified. | |
2961 set_mode_flags(_int); | |
2962 } | |
2963 if (CompileThreshold == 0) { | |
2964 set_mode_flags(_int); | |
2965 } | |
2966 | |
2967 #ifndef COMPILER2 | |
2968 // Don't degrade server performance for footprint | |
2969 if (FLAG_IS_DEFAULT(UseLargePages) && | |
2970 MaxHeapSize < LargePageHeapSizeThreshold) { | |
2971 // No need for large granularity pages w/small heaps. | |
2972 // Note that large pages are enabled/disabled for both the | |
2973 // Java heap and the code cache. | |
2974 FLAG_SET_DEFAULT(UseLargePages, false); | |
2975 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
2976 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
2977 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2978 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2979 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2980 TieredCompilation = false; |
0 | 2981 #else |
2982 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
2983 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
2984 } | |
2985 #endif | |
2986 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2987 // 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
|
2988 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
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diff
changeset
|
2989 // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state. |
126ea7725993
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diff
changeset
|
2990 if (os::is_headless_jre()) { |
126ea7725993
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parents:
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diff
changeset
|
2991 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2992 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2993 char envbuffer[128]; |
126ea7725993
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bobv
parents:
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diff
changeset
|
2994 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
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bobv
parents:
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diff
changeset
|
2995 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2996 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2997 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2998 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
2999 char buffer[256]; |
126ea7725993
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bobv
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diff
changeset
|
3000 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
3001 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
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diff
changeset
|
3002 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
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diff
changeset
|
3003 return JNI_ENOMEM; |
126ea7725993
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bobv
parents:
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diff
changeset
|
3004 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3005 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3006 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3007 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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diff
changeset
|
3008 |
0 | 3009 if (!check_vm_args_consistency()) { |
3010 return JNI_ERR; | |
3011 } | |
3012 | |
3013 return JNI_OK; | |
3014 } | |
3015 | |
3016 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3017 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3018 scp_assembly_required_p); | |
3019 } | |
3020 | |
3021 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3022 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3023 scp_assembly_required_p); | |
3024 } | |
3025 | |
3026 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3027 const int N_MAX_OPTIONS = 64; | |
3028 const int OPTION_BUFFER_SIZE = 1024; | |
3029 char buffer[OPTION_BUFFER_SIZE]; | |
3030 | |
3031 // The variable will be ignored if it exceeds the length of the buffer. | |
3032 // Don't check this variable if user has special privileges | |
3033 // (e.g. unix su command). | |
3034 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3035 !os::have_special_privileges()) { | |
3036 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3037 jio_fprintf(defaultStream::error_stream(), | |
3038 "Picked up %s: %s\n", name, buffer); | |
3039 char* rd = buffer; // pointer to the input string (rd) | |
3040 int i; | |
3041 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3042 while (isspace(*rd)) rd++; // skip whitespace | |
3043 if (*rd == 0) break; // we re done when the input string is read completely | |
3044 | |
3045 // The output, option string, overwrites the input string. | |
3046 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3047 // input string (rd). | |
3048 char* wrt = rd; | |
3049 | |
3050 options[i++].optionString = wrt; // Fill in option | |
3051 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3052 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3053 int quote = *rd; // matching quote to look for | |
3054 rd++; // don't copy open quote | |
3055 while (*rd != quote) { // include everything (even spaces) up until quote | |
3056 if (*rd == 0) { // string termination means unmatched string | |
3057 jio_fprintf(defaultStream::error_stream(), | |
3058 "Unmatched quote in %s\n", name); | |
3059 return JNI_ERR; | |
3060 } | |
3061 *wrt++ = *rd++; // copy to option string | |
3062 } | |
3063 rd++; // don't copy close quote | |
3064 } else { | |
3065 *wrt++ = *rd++; // copy to option string | |
3066 } | |
3067 } | |
3068 // Need to check if we're done before writing a NULL, | |
3069 // because the write could be to the byte that rd is pointing to. | |
3070 if (*rd++ == 0) { | |
3071 *wrt = 0; | |
3072 break; | |
3073 } | |
3074 *wrt = 0; // Zero terminate option | |
3075 } | |
3076 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3077 JavaVMInitArgs vm_args; | |
3078 vm_args.version = JNI_VERSION_1_2; | |
3079 vm_args.options = options; | |
3080 vm_args.nOptions = i; | |
564 | 3081 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3082 |
3083 if (PrintVMOptions) { | |
3084 const char* tail; | |
3085 for (int i = 0; i < vm_args.nOptions; i++) { | |
3086 const JavaVMOption *option = vm_args.options + i; | |
3087 if (match_option(option, "-XX:", &tail)) { | |
3088 logOption(tail); | |
3089 } | |
3090 } | |
3091 } | |
3092 | |
3093 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3094 } | |
3095 return JNI_OK; | |
3096 } | |
3097 | |
2362
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diff
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|
3098 void Arguments::set_shared_spaces_flags() { |
2378 | 3099 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
3100 const bool might_share = must_share || UseSharedSpaces; | |
3101 | |
6725
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diff
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|
3102 // CompressedOops cannot be used with CDS. The offsets of oopmaps and |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
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diff
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|
3103 // static fields are incorrect in the archive. With some more clever |
da91efe96a93
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coleenp
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diff
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|
3104 // initialization, this restriction can probably be lifted. |
da91efe96a93
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coleenp
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diff
changeset
|
3105 // ??? UseLargePages might be okay now |
da91efe96a93
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coleenp
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diff
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|
3106 const bool cannot_share = UseCompressedOops || |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6628
diff
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|
3107 (UseLargePages && FLAG_IS_CMDLINE(UseLargePages)); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3108 if (cannot_share) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3109 if (must_share) { |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
3110 warning("disabling large pages %s" |
2378 | 3111 "because of %s", "" LP64_ONLY("and compressed oops "), |
3112 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
3113 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
3114 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3115 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false)); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3116 } else { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3117 // Prefer compressed oops and large pages to class data sharing |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3118 if (UseSharedSpaces && Verbose) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3119 warning("turning off use of shared archive because of large pages%s", |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3120 "" LP64_ONLY(" and/or compressed oops")); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3121 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3122 no_shared_spaces(); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3123 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3124 } else if (UseLargePages && might_share) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3125 // Disable large pages to allow shared spaces. This is sub-optimal, since |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3126 // there may not even be a shared archive to use. |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3127 FLAG_SET_DEFAULT(UseLargePages, false); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3128 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3129 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3130 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3131 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3132 warning("cannot dump shared archive while using shared archive"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
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diff
changeset
|
3133 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3134 UseSharedSpaces = false; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3135 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3136 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3137 |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3138 // 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
|
3139 // were explicitly requested on the command-line |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3140 #define UNSUPPORTED_OPTION(opt, description) \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3141 do { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3142 if (opt) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3143 if (FLAG_IS_CMDLINE(opt)) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3144 warning(description " is disabled in this release."); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3145 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3146 FLAG_SET_DEFAULT(opt, false); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3147 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3148 } while(0) |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3149 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3150 |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3151 #define UNSUPPORTED_GC_OPTION(gc) \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3152 do { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3153 if (gc) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3154 if (FLAG_IS_CMDLINE(gc)) { \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3155 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
|
3156 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3157 FLAG_SET_DEFAULT(gc, false); \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3158 } \ |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3159 } while(0) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3160 |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3161 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3162 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3163 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
|
3164 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3165 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3166 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3167 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
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jprovino
parents:
8083
diff
changeset
|
3168 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3169 } |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
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8083
diff
changeset
|
3170 |
0 | 3171 // Parse entry point called from JNI_CreateJavaVM |
3172 | |
3173 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3174 | |
3175 // Sharing support | |
3176 // Construct the path to the archive | |
3177 char jvm_path[JVM_MAXPATHLEN]; | |
3178 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
3179 char *end = strrchr(jvm_path, *os::file_separator()); | |
3180 if (end != NULL) *end = '\0'; | |
3181 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
6197 | 3182 strlen(os::file_separator()) + 20, mtInternal); |
0 | 3183 if (shared_archive_path == NULL) return JNI_ENOMEM; |
3184 strcpy(shared_archive_path, jvm_path); | |
3185 strcat(shared_archive_path, os::file_separator()); | |
3186 strcat(shared_archive_path, "classes"); | |
3187 strcat(shared_archive_path, ".jsa"); | |
3188 SharedArchivePath = shared_archive_path; | |
3189 | |
3190 // Remaining part of option string | |
3191 const char* tail; | |
3192 | |
3193 // 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
|
3194 const char* hotspotrc = ".hotspotrc"; |
0 | 3195 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
|
3196 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
|
3197 |
564 | 3198 const char* flags_file; |
0 | 3199 int index; |
3200 for (index = 0; index < args->nOptions; index++) { | |
3201 const JavaVMOption *option = args->options + index; | |
3202 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3203 flags_file = tail; |
0 | 3204 settings_file_specified = true; |
3205 } | |
3206 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3207 PrintVMOptions = true; | |
3208 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3209 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
|
3210 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3211 } |
564 | 3212 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3213 IgnoreUnrecognizedVMOptions = true; | |
3214 } | |
3215 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3216 IgnoreUnrecognizedVMOptions = false; | |
3217 } | |
1150 | 3218 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3219 CommandLineFlags::printFlags(tty, false); |
1150 | 3220 vm_exit(0); |
3221 } | |
6197 | 3222 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3223 #if INCLUDE_NMT |
6197 | 3224 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3225 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3226 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
|
3227 "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
|
3228 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3229 #endif |
6197 | 3230 } |
3231 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3232 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3233 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3234 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3235 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3236 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3237 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3238 #endif |
564 | 3239 } |
3240 | |
3241 if (IgnoreUnrecognizedVMOptions) { | |
3242 // uncast const to modify the flag args->ignoreUnrecognized | |
3243 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3244 } | |
3245 | |
3246 // Parse specified settings file | |
3247 if (settings_file_specified) { | |
3248 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3249 return JNI_EINVAL; | |
3250 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3251 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3252 #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
|
3253 // Parse default .hotspotrc settings file |
0 | 3254 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3255 return JNI_EINVAL; | |
3256 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3257 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3258 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
|
3259 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
|
3260 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
|
3261 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3262 #endif |
0 | 3263 } |
3264 | |
3265 if (PrintVMOptions) { | |
3266 for (index = 0; index < args->nOptions; index++) { | |
3267 const JavaVMOption *option = args->options + index; | |
3268 if (match_option(option, "-XX:", &tail)) { | |
3269 logOption(tail); | |
3270 } | |
3271 } | |
3272 } | |
3273 | |
3274 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3275 jint result = parse_vm_init_args(args); | |
3276 if (result != JNI_OK) { | |
3277 return result; | |
3278 } | |
3279 | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3280 // 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
|
3281 // 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
|
3282 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
|
3283 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
|
3284 "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
|
3285 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3286 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3287 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3288 #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
|
3289 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3290 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3291 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3292 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3293 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3294 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3295 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3296 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3297 |
0 | 3298 #ifndef PRODUCT |
3299 if (TraceBytecodesAt != 0) { | |
3300 TraceBytecodes = true; | |
3301 } | |
3302 if (CountCompiledCalls) { | |
3303 if (UseCounterDecay) { | |
3304 warning("UseCounterDecay disabled because CountCalls is set"); | |
3305 UseCounterDecay = false; | |
3306 } | |
3307 } | |
3308 #endif // PRODUCT | |
3309 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3310 // 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
|
3311 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3312 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3313 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3314 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
|
3315 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3316 EnableInvokeDynamic = false; |
710 | 3317 } |
3318 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3319 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3320 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3321 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3322 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
|
3323 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3324 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3325 } |
710 | 3326 |
0 | 3327 if (PrintGCDetails) { |
3328 // Turn on -verbose:gc options as well | |
3329 PrintGC = true; | |
3330 } | |
3331 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3332 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3333 // 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
|
3334 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3335 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3336 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3337 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3338 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3339 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3340 // 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
|
3341 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
|
3342 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3343 #if !INCLUDE_ALL_GCS |
1064 | 3344 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3345 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3346 #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
|
3347 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3348 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
|
3349 "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
|
3350 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3351 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3352 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
|
3353 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
|
3354 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
|
3355 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
|
3356 } |
0 | 3357 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3358 #endif // INCLUDE_CDS |
0 | 3359 |
3360 // Set flags based on ergonomics. | |
3361 set_ergonomics_flags(); | |
3362 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3363 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3364 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3365 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3366 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3367 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3368 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3369 |
1783 | 3370 if (TieredCompilation) { |
3371 set_tiered_flags(); | |
3372 } else { | |
3373 // 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
|
3374 if (CompilationPolicyChoice >= 2 && CompilationPolicyChoice < 4) { |
1783 | 3375 vm_exit_during_initialization( |
3376 "Incompatible compilation policy selected", NULL); | |
3377 } | |
3378 } | |
3379 | |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3380 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3381 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3382 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3383 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3384 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3385 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3386 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3387 } 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
|
3388 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3389 } 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
|
3390 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3391 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3392 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3393 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3394 check_deprecated_gcs(); |
8734 | 3395 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3396 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3397 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
|
3398 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
|
3399 " 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
|
3400 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3401 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3402 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3403 #else // INCLUDE_ALL_GCS |
0 | 3404 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3405 #endif // INCLUDE_ALL_GCS |
0 | 3406 |
3407 // Set bytecode rewriting flags | |
3408 set_bytecode_flags(); | |
3409 | |
3410 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3411 set_aggressive_opts_flags(); | |
3412 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3413 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3414 // 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
|
3415 // biased locking. |
2331 | 3416 if (UseHeavyMonitors |
3417 #ifdef COMPILER1 | |
3418 || !UseFastLocking | |
3419 #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
|
3420 #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
|
3421 || !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
|
3422 #endif // GRAAL |
2331 | 3423 ) { |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3424 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3425 // 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
|
3426 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3427 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3428 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3429 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3430 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3431 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3432 |
0 | 3433 #ifdef CC_INTERP |
1131 | 3434 // Clear flags not supported by the C++ interpreter |
3435 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3436 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3437 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3438 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3439 #endif // CC_INTERP |
3440 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3441 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3442 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3443 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3444 } |
4777 | 3445 if (!EliminateLocks) { |
3446 EliminateNestedLocks = false; | |
3447 } | |
7473 | 3448 if (!Inline) { |
3449 IncrementalInline = false; | |
3450 } | |
3451 #ifndef PRODUCT | |
3452 if (!IncrementalInline) { | |
3453 AlwaysIncrementalInline = false; | |
3454 } | |
3455 #endif | |
3456 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3457 // incremental inlining: bump MaxNodeLimit | |
3458 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3459 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3460 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3461 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3462 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3463 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
|
3464 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3465 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3466 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3467 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3468 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3469 // 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
|
3470 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3471 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3472 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3473 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3474 #endif |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3475 |
0 | 3476 if (PrintCommandLineFlags) { |
4773 | 3477 CommandLineFlags::printSetFlags(tty); |
0 | 3478 } |
3479 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3480 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3481 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3482 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3483 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3484 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3485 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3486 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3487 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3488 // 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
|
3489 // 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
|
3490 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
|
3491 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3492 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3493 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3494 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3495 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3496 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3497 |
0 | 3498 return JNI_OK; |
3499 } | |
3500 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3501 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3502 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3503 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3504 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3505 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3506 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3507 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3508 // 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
|
3509 // 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
|
3510 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3511 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3512 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3513 #endif // INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3514 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3515 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3516 |
0 | 3517 int Arguments::PropertyList_count(SystemProperty* pl) { |
3518 int count = 0; | |
3519 while(pl != NULL) { | |
3520 count++; | |
3521 pl = pl->next(); | |
3522 } | |
3523 return count; | |
3524 } | |
3525 | |
3526 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3527 assert(key != NULL, "just checking"); | |
3528 SystemProperty* prop; | |
3529 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3530 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3531 } | |
3532 return NULL; | |
3533 } | |
3534 | |
3535 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3536 int count = 0; | |
3537 const char* ret_val = NULL; | |
3538 | |
3539 while(pl != NULL) { | |
3540 if(count >= index) { | |
3541 ret_val = pl->key(); | |
3542 break; | |
3543 } | |
3544 count++; | |
3545 pl = pl->next(); | |
3546 } | |
3547 | |
3548 return ret_val; | |
3549 } | |
3550 | |
3551 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3552 int count = 0; | |
3553 char* ret_val = NULL; | |
3554 | |
3555 while(pl != NULL) { | |
3556 if(count >= index) { | |
3557 ret_val = pl->value(); | |
3558 break; | |
3559 } | |
3560 count++; | |
3561 pl = pl->next(); | |
3562 } | |
3563 | |
3564 return ret_val; | |
3565 } | |
3566 | |
3567 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3568 SystemProperty* p = *plist; | |
3569 if (p == NULL) { | |
3570 *plist = new_p; | |
3571 } else { | |
3572 while (p->next() != NULL) { | |
3573 p = p->next(); | |
3574 } | |
3575 p->set_next(new_p); | |
3576 } | |
3577 } | |
3578 | |
3579 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3580 if (plist == NULL) | |
3581 return; | |
3582 | |
3583 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3584 PropertyList_add(plist, new_p); | |
3585 } | |
3586 | |
3587 // This add maintains unique property key in the list. | |
691 | 3588 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3589 if (plist == NULL) |
3590 return; | |
3591 | |
3592 // If property key exist then update with new value. | |
3593 SystemProperty* prop; | |
3594 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3595 if (strcmp(k, prop->key()) == 0) { | |
691 | 3596 if (append) { |
3597 prop->append_value(v); | |
3598 } else { | |
3599 prop->set_value(v); | |
3600 } | |
0 | 3601 return; |
3602 } | |
3603 } | |
3604 | |
3605 PropertyList_add(plist, k, v); | |
3606 } | |
3607 | |
3608 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3609 // Returns true if all of the source pointed by src has been copied over to | |
3610 // the destination buffer pointed by buf. Otherwise, returns false. | |
3611 // Notes: | |
3612 // 1. If the length (buflen) of the destination buffer excluding the | |
3613 // NULL terminator character is not long enough for holding the expanded | |
3614 // pid characters, it also returns false instead of returning the partially | |
3615 // expanded one. | |
3616 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3617 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3618 char* buf, size_t buflen) { | |
3619 const char* p = src; | |
3620 char* b = buf; | |
3621 const char* src_end = &src[srclen]; | |
3622 char* buf_end = &buf[buflen - 1]; | |
3623 | |
3624 while (p < src_end && b < buf_end) { | |
3625 if (*p == '%') { | |
3626 switch (*(++p)) { | |
3627 case '%': // "%%" ==> "%" | |
3628 *b++ = *p++; | |
3629 break; | |
3630 case 'p': { // "%p" ==> current process id | |
3631 // buf_end points to the character before the last character so | |
3632 // that we could write '\0' to the end of the buffer. | |
3633 size_t buf_sz = buf_end - b + 1; | |
3634 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3635 | |
3636 // if jio_snprintf fails or the buffer is not long enough to hold | |
3637 // the expanded pid, returns false. | |
3638 if (ret < 0 || ret >= (int)buf_sz) { | |
3639 return false; | |
3640 } else { | |
3641 b += ret; | |
3642 assert(*b == '\0', "fail in copy_expand_pid"); | |
3643 if (p == src_end && b == buf_end + 1) { | |
3644 // reach the end of the buffer. | |
3645 return true; | |
3646 } | |
3647 } | |
3648 p++; | |
3649 break; | |
3650 } | |
3651 default : | |
3652 *b++ = '%'; | |
3653 } | |
3654 } else { | |
3655 *b++ = *p++; | |
3656 } | |
3657 } | |
3658 *b = '\0'; | |
3659 return (p == src_end); // return false if not all of the source was copied | |
3660 } |