Mercurial > hg > graal-jvmci-8
annotate src/share/vm/runtime/arguments.cpp @ 8504:86b4965f0c9a
-Cleanup code
author | Christos Kotselidis <christos.kotselidis@oracle.com> |
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date | Wed, 20 Mar 2013 21:39:24 +0100 |
parents | 9412b1915547 |
children | c3657d00e343 |
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" |
41 #include "utilities/taskqueue.hpp" | |
42 #ifdef TARGET_OS_FAMILY_linux | |
43 # include "os_linux.inline.hpp" | |
44 #endif | |
45 #ifdef TARGET_OS_FAMILY_solaris | |
46 # include "os_solaris.inline.hpp" | |
47 #endif | |
48 #ifdef TARGET_OS_FAMILY_windows | |
49 # include "os_windows.inline.hpp" | |
50 #endif | |
3960 | 51 #ifdef TARGET_OS_FAMILY_bsd |
52 # include "os_bsd.inline.hpp" | |
53 #endif | |
1972 | 54 #ifndef SERIALGC |
55 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" | |
56 #endif | |
0 | 57 |
2474 | 58 // Note: This is a special bug reporting site for the JVM |
59 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 60 #define DEFAULT_JAVA_LAUNCHER "generic" |
61 | |
62 char** Arguments::_jvm_flags_array = NULL; | |
63 int Arguments::_num_jvm_flags = 0; | |
64 char** Arguments::_jvm_args_array = NULL; | |
65 int Arguments::_num_jvm_args = 0; | |
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66 #ifdef GRAAL |
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67 char** Arguments::_graal_args_array = NULL; |
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68 int Arguments::_num_graal_args = 0; |
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69 #endif |
0 | 70 char* Arguments::_java_command = NULL; |
71 SystemProperty* Arguments::_system_properties = NULL; | |
72 const char* Arguments::_gc_log_filename = NULL; | |
73 bool Arguments::_has_profile = false; | |
74 bool Arguments::_has_alloc_profile = false; | |
75 uintx Arguments::_min_heap_size = 0; | |
76 Arguments::Mode Arguments::_mode = _mixed; | |
77 bool Arguments::_java_compiler = false; | |
78 bool Arguments::_xdebug_mode = false; | |
79 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
80 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
81 int Arguments::_sun_java_launcher_pid = -1; | |
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82 bool Arguments::_created_by_gamma_launcher = false; |
0 | 83 |
84 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
85 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
86 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
87 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
88 bool Arguments::_ClipInlining = ClipInlining; | |
89 | |
90 char* Arguments::SharedArchivePath = NULL; | |
91 | |
92 AgentLibraryList Arguments::_libraryList; | |
93 AgentLibraryList Arguments::_agentList; | |
94 | |
95 abort_hook_t Arguments::_abort_hook = NULL; | |
96 exit_hook_t Arguments::_exit_hook = NULL; | |
97 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
98 | |
99 | |
100 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
101 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
102 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
103 SystemProperty *Arguments::_java_library_path = NULL; | |
104 SystemProperty *Arguments::_java_home = NULL; | |
105 SystemProperty *Arguments::_java_class_path = NULL; | |
106 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
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107 #ifdef GRAAL |
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108 SystemProperty *Arguments::_compiler_class_path = NULL; |
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109 #endif |
0 | 110 |
111 char* Arguments::_meta_index_path = NULL; | |
112 char* Arguments::_meta_index_dir = NULL; | |
113 | |
114 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
115 | |
116 static bool match_option(const JavaVMOption *option, const char* name, | |
117 const char** tail) { | |
118 int len = (int)strlen(name); | |
119 if (strncmp(option->optionString, name, len) == 0) { | |
120 *tail = option->optionString + len; | |
121 return true; | |
122 } else { | |
123 return false; | |
124 } | |
125 } | |
126 | |
127 static void logOption(const char* opt) { | |
128 if (PrintVMOptions) { | |
129 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
130 } | |
131 } | |
132 | |
133 // Process java launcher properties. | |
134 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
135 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
136 // Must do this before setting up other system properties, | |
137 // as some of them may depend on launcher type. | |
138 for (int index = 0; index < args->nOptions; index++) { | |
139 const JavaVMOption* option = args->options + index; | |
140 const char* tail; | |
141 | |
142 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
143 process_java_launcher_argument(tail, option->extraInfo); | |
144 continue; | |
145 } | |
146 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
147 _sun_java_launcher_pid = atoi(tail); | |
148 continue; | |
149 } | |
150 } | |
151 } | |
152 | |
153 // Initialize system properties key and value. | |
154 void Arguments::init_system_properties() { | |
155 | |
156 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
157 "Java Virtual Machine Specification", false)); | |
158 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
159 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
160 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
161 | |
162 // following are JVMTI agent writeable properties. | |
163 // Properties values are set to NULL and they are | |
164 // os specific they are initialized in os::init_system_properties_values(). | |
165 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
166 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
167 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
168 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
169 _java_home = new SystemProperty("java.home", NULL, true); | |
170 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
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171 #ifdef GRAAL |
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172 _compiler_class_path = new SystemProperty("compiler.class.path", NULL, true); |
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173 #endif |
0 | 174 |
175 _java_class_path = new SystemProperty("java.class.path", "", true); | |
176 | |
177 // Add to System Property list. | |
178 PropertyList_add(&_system_properties, _java_ext_dirs); | |
179 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
180 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
181 PropertyList_add(&_system_properties, _java_library_path); | |
182 PropertyList_add(&_system_properties, _java_home); | |
183 PropertyList_add(&_system_properties, _java_class_path); | |
184 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
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185 #ifdef GRAAL |
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186 PropertyList_add(&_system_properties, _compiler_class_path); |
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187 #endif |
0 | 188 |
189 // Set OS specific system properties values | |
190 os::init_system_properties_values(); | |
191 } | |
192 | |
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193 |
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194 // Update/Initialize System properties after JDK version number is known |
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195 void Arguments::init_version_specific_system_properties() { |
1956
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196 enum { bufsz = 16 }; |
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197 char buffer[bufsz]; |
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198 const char* spec_vendor = "Sun Microsystems Inc."; |
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199 uint32_t spec_version = 0; |
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200 |
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201 if (JDK_Version::is_gte_jdk17x_version()) { |
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202 spec_vendor = "Oracle Corporation"; |
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203 spec_version = JDK_Version::current().major_version(); |
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204 } |
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205 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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206 |
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207 PropertyList_add(&_system_properties, |
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208 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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209 PropertyList_add(&_system_properties, |
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210 new SystemProperty("java.vm.specification.version", buffer, false)); |
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211 PropertyList_add(&_system_properties, |
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212 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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213 } |
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214 |
242 | 215 /** |
216 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
217 * When a flag is eliminated, it can be added to this list in order to | |
218 * continue accepting this flag on the command-line, while issuing a warning | |
219 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
220 * limit, we flatly refuse to admit the existence of the flag. This allows | |
221 * a flag to die correctly over JDK releases using HSX. | |
222 */ | |
223 typedef struct { | |
224 const char* name; | |
225 JDK_Version obsoleted_in; // when the flag went away | |
226 JDK_Version accept_until; // which version to start denying the existence | |
227 } ObsoleteFlag; | |
0 | 228 |
242 | 229 static ObsoleteFlag obsolete_jvm_flags[] = { |
230 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
231 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
232 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
233 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
234 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
235 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
236 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
237 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
238 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
239 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
240 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
241 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
242 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
243 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 244 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
245 { "DefaultInitialRAMFraction", | |
246 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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247 { "UseDepthFirstScavengeOrder", |
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248 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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249 { "HandlePromotionFailure", |
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250 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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251 { "MaxLiveObjectEvacuationRatio", |
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252 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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253 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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254 { "UseParallelOldGCCompacting", |
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255 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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256 { "UseParallelDensePrefixUpdate", |
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257 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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258 { "UseParallelOldGCDensePrefix", |
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259 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 260 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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261 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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262 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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263 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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264 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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265 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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266 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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267 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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268 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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269 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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270 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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271 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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272 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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273 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 274 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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275 #ifdef PRODUCT |
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276 { "DesiredMethodLimit", |
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277 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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278 #endif // PRODUCT |
242 | 279 { NULL, JDK_Version(0), JDK_Version(0) } |
280 }; | |
281 | |
282 // Returns true if the flag is obsolete and fits into the range specified | |
283 // for being ignored. In the case that the flag is ignored, the 'version' | |
284 // value is filled in with the version number when the flag became | |
285 // obsolete so that that value can be displayed to the user. | |
286 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 287 int i = 0; |
242 | 288 assert(version != NULL, "Must provide a version buffer"); |
289 while (obsolete_jvm_flags[i].name != NULL) { | |
290 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 291 // <flag>=xxx form |
292 // [-|+]<flag> form | |
242 | 293 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 294 ((s[0] == '+' || s[0] == '-') && |
242 | 295 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
296 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
297 *version = flag_status.obsoleted_in; | |
298 return true; | |
299 } | |
0 | 300 } |
301 i++; | |
302 } | |
303 return false; | |
304 } | |
305 | |
306 // Constructs the system class path (aka boot class path) from the following | |
307 // components, in order: | |
308 // | |
309 // prefix // from -Xbootclasspath/p:... | |
310 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
311 // base // from os::get_system_properties() or -Xbootclasspath= | |
312 // suffix // from -Xbootclasspath/a:... | |
313 // | |
314 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
315 // directories are added to the sysclasspath just before the base. | |
316 // | |
317 // This could be AllStatic, but it isn't needed after argument processing is | |
318 // complete. | |
319 class SysClassPath: public StackObj { | |
320 public: | |
321 SysClassPath(const char* base); | |
322 ~SysClassPath(); | |
323 | |
324 inline void set_base(const char* base); | |
325 inline void add_prefix(const char* prefix); | |
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326 inline void add_suffix_to_prefix(const char* suffix); |
0 | 327 inline void add_suffix(const char* suffix); |
328 inline void reset_path(const char* base); | |
329 | |
330 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
331 // property. Must be called after all command-line arguments have been | |
332 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
333 // combined_path(). | |
334 void expand_endorsed(); | |
335 | |
336 inline const char* get_base() const { return _items[_scp_base]; } | |
337 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
338 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
339 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
340 | |
341 // Combine all the components into a single c-heap-allocated string; caller | |
342 // must free the string if/when no longer needed. | |
343 char* combined_path(); | |
344 | |
345 private: | |
346 // Utility routines. | |
347 static char* add_to_path(const char* path, const char* str, bool prepend); | |
348 static char* add_jars_to_path(char* path, const char* directory); | |
349 | |
350 inline void reset_item_at(int index); | |
351 | |
352 // Array indices for the items that make up the sysclasspath. All except the | |
353 // base are allocated in the C heap and freed by this class. | |
354 enum { | |
355 _scp_prefix, // from -Xbootclasspath/p:... | |
356 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
357 _scp_base, // the default sysclasspath | |
358 _scp_suffix, // from -Xbootclasspath/a:... | |
359 _scp_nitems // the number of items, must be last. | |
360 }; | |
361 | |
362 const char* _items[_scp_nitems]; | |
363 DEBUG_ONLY(bool _expansion_done;) | |
364 }; | |
365 | |
366 SysClassPath::SysClassPath(const char* base) { | |
367 memset(_items, 0, sizeof(_items)); | |
368 _items[_scp_base] = base; | |
369 DEBUG_ONLY(_expansion_done = false;) | |
370 } | |
371 | |
372 SysClassPath::~SysClassPath() { | |
373 // Free everything except the base. | |
374 for (int i = 0; i < _scp_nitems; ++i) { | |
375 if (i != _scp_base) reset_item_at(i); | |
376 } | |
377 DEBUG_ONLY(_expansion_done = false;) | |
378 } | |
379 | |
380 inline void SysClassPath::set_base(const char* base) { | |
381 _items[_scp_base] = base; | |
382 } | |
383 | |
384 inline void SysClassPath::add_prefix(const char* prefix) { | |
385 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
386 } | |
387 | |
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388 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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389 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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390 } |
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391 |
0 | 392 inline void SysClassPath::add_suffix(const char* suffix) { |
393 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
394 } | |
395 | |
396 inline void SysClassPath::reset_item_at(int index) { | |
397 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
398 if (_items[index] != NULL) { | |
6197 | 399 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 400 _items[index] = NULL; |
401 } | |
402 } | |
403 | |
404 inline void SysClassPath::reset_path(const char* base) { | |
405 // Clear the prefix and suffix. | |
406 reset_item_at(_scp_prefix); | |
407 reset_item_at(_scp_suffix); | |
408 set_base(base); | |
409 } | |
410 | |
411 //------------------------------------------------------------------------------ | |
412 | |
413 void SysClassPath::expand_endorsed() { | |
414 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
415 | |
416 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
417 if (path == NULL) { | |
418 path = Arguments::get_endorsed_dir(); | |
419 assert(path != NULL, "no default for java.endorsed.dirs"); | |
420 } | |
421 | |
422 char* expanded_path = NULL; | |
423 const char separator = *os::path_separator(); | |
424 const char* const end = path + strlen(path); | |
425 while (path < end) { | |
426 const char* tmp_end = strchr(path, separator); | |
427 if (tmp_end == NULL) { | |
428 expanded_path = add_jars_to_path(expanded_path, path); | |
429 path = end; | |
430 } else { | |
6197 | 431 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 432 memcpy(dirpath, path, tmp_end - path); |
433 dirpath[tmp_end - path] = '\0'; | |
434 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 435 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 436 path = tmp_end + 1; |
437 } | |
438 } | |
439 _items[_scp_endorsed] = expanded_path; | |
440 DEBUG_ONLY(_expansion_done = true;) | |
441 } | |
442 | |
443 // Combine the bootclasspath elements, some of which may be null, into a single | |
444 // c-heap-allocated string. | |
445 char* SysClassPath::combined_path() { | |
446 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
447 assert(_expansion_done, "must call expand_endorsed() first."); | |
448 | |
449 size_t lengths[_scp_nitems]; | |
450 size_t total_len = 0; | |
451 | |
452 const char separator = *os::path_separator(); | |
453 | |
454 // Get the lengths. | |
455 int i; | |
456 for (i = 0; i < _scp_nitems; ++i) { | |
457 if (_items[i] != NULL) { | |
458 lengths[i] = strlen(_items[i]); | |
459 // Include space for the separator char (or a NULL for the last item). | |
460 total_len += lengths[i] + 1; | |
461 } | |
462 } | |
463 assert(total_len > 0, "empty sysclasspath not allowed"); | |
464 | |
465 // Copy the _items to a single string. | |
6197 | 466 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 467 char* cp_tmp = cp; |
468 for (i = 0; i < _scp_nitems; ++i) { | |
469 if (_items[i] != NULL) { | |
470 memcpy(cp_tmp, _items[i], lengths[i]); | |
471 cp_tmp += lengths[i]; | |
472 *cp_tmp++ = separator; | |
473 } | |
474 } | |
475 *--cp_tmp = '\0'; // Replace the extra separator. | |
476 return cp; | |
477 } | |
478 | |
479 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
480 char* | |
481 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
482 char *cp; | |
483 | |
484 assert(str != NULL, "just checking"); | |
485 if (path == NULL) { | |
486 size_t len = strlen(str) + 1; | |
6197 | 487 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 488 memcpy(cp, str, len); // copy the trailing null |
489 } else { | |
490 const char separator = *os::path_separator(); | |
491 size_t old_len = strlen(path); | |
492 size_t str_len = strlen(str); | |
493 size_t len = old_len + str_len + 2; | |
494 | |
495 if (prepend) { | |
6197 | 496 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 497 char* cp_tmp = cp; |
498 memcpy(cp_tmp, str, str_len); | |
499 cp_tmp += str_len; | |
500 *cp_tmp = separator; | |
501 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 502 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 503 } else { |
6197 | 504 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 505 char* cp_tmp = cp + old_len; |
506 *cp_tmp = separator; | |
507 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
508 } | |
509 } | |
510 return cp; | |
511 } | |
512 | |
513 // Scan the directory and append any jar or zip files found to path. | |
514 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
515 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
516 DIR* dir = os::opendir(directory); | |
517 if (dir == NULL) return path; | |
518 | |
519 char dir_sep[2] = { '\0', '\0' }; | |
520 size_t directory_len = strlen(directory); | |
521 const char fileSep = *os::file_separator(); | |
522 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
523 | |
524 /* Scan the directory for jars/zips, appending them to path. */ | |
525 struct dirent *entry; | |
6197 | 526 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 527 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
528 const char* name = entry->d_name; | |
529 const char* ext = name + strlen(name) - 4; | |
530 bool isJarOrZip = ext > name && | |
531 (os::file_name_strcmp(ext, ".jar") == 0 || | |
532 os::file_name_strcmp(ext, ".zip") == 0); | |
533 if (isJarOrZip) { | |
6197 | 534 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 535 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
536 path = add_to_path(path, jarpath, false); | |
6197 | 537 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 538 } |
539 } | |
6197 | 540 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 541 os::closedir(dir); |
542 return path; | |
543 } | |
544 | |
545 // Parses a memory size specification string. | |
489
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546 static bool atomull(const char *s, julong* result) { |
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547 julong n = 0; |
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548 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 549 if (args_read != 1) { |
550 return false; | |
551 } | |
552 while (*s != '\0' && isdigit(*s)) { | |
553 s++; | |
554 } | |
555 // 4705540: illegal if more characters are found after the first non-digit | |
556 if (strlen(s) > 1) { | |
557 return false; | |
558 } | |
559 switch (*s) { | |
560 case 'T': case 't': | |
561 *result = n * G * K; | |
489
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562 // Check for overflow. |
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563 if (*result/((julong)G * K) != n) return false; |
0 | 564 return true; |
565 case 'G': case 'g': | |
566 *result = n * G; | |
489
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567 if (*result/G != n) return false; |
0 | 568 return true; |
569 case 'M': case 'm': | |
570 *result = n * M; | |
489
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571 if (*result/M != n) return false; |
0 | 572 return true; |
573 case 'K': case 'k': | |
574 *result = n * K; | |
489
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575 if (*result/K != n) return false; |
0 | 576 return true; |
577 case '\0': | |
578 *result = n; | |
579 return true; | |
580 default: | |
581 return false; | |
582 } | |
583 } | |
584 | |
489
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585 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 586 if (size < min_size) return arg_too_small; |
587 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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588 if (size > max_uintx) return arg_too_big; |
0 | 589 return arg_in_range; |
590 } | |
591 | |
592 // Describe an argument out of range error | |
593 void Arguments::describe_range_error(ArgsRange errcode) { | |
594 switch(errcode) { | |
595 case arg_too_big: | |
596 jio_fprintf(defaultStream::error_stream(), | |
597 "The specified size exceeds the maximum " | |
598 "representable size.\n"); | |
599 break; | |
600 case arg_too_small: | |
601 case arg_unreadable: | |
602 case arg_in_range: | |
603 // do nothing for now | |
604 break; | |
605 default: | |
606 ShouldNotReachHere(); | |
607 } | |
608 } | |
609 | |
610 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
611 return CommandLineFlags::boolAtPut(name, &value, origin); | |
612 } | |
613 | |
614 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
615 double v; | |
616 if (sscanf(value, "%lf", &v) != 1) { | |
617 return false; | |
618 } | |
619 | |
620 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
621 return true; | |
622 } | |
623 return false; | |
624 } | |
625 | |
626 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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627 julong v; |
0 | 628 intx intx_v; |
629 bool is_neg = false; | |
489
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630 // Check the sign first since atomull() parses only unsigned values. |
0 | 631 if (*value == '-') { |
632 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
633 return false; | |
634 } | |
635 value++; | |
636 is_neg = true; | |
637 } | |
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638 if (!atomull(value, &v)) { |
0 | 639 return false; |
640 } | |
641 intx_v = (intx) v; | |
642 if (is_neg) { | |
643 intx_v = -intx_v; | |
644 } | |
645 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
646 return true; | |
647 } | |
648 uintx uintx_v = (uintx) v; | |
649 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
650 return true; | |
651 } | |
1064 | 652 uint64_t uint64_t_v = (uint64_t) v; |
653 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
654 return true; | |
655 } | |
0 | 656 return false; |
657 } | |
658 | |
659 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
660 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
661 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 662 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 663 return true; |
664 } | |
665 | |
666 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
667 const char* old_value = ""; | |
668 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
669 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
670 size_t new_len = strlen(new_value); | |
671 const char* value; | |
672 char* free_this_too = NULL; | |
673 if (old_len == 0) { | |
674 value = new_value; | |
675 } else if (new_len == 0) { | |
676 value = old_value; | |
677 } else { | |
6197 | 678 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 679 // each new setting adds another LINE to the switch: |
680 sprintf(buf, "%s\n%s", old_value, new_value); | |
681 value = buf; | |
682 free_this_too = buf; | |
683 } | |
684 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
685 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 686 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 687 if (free_this_too != NULL) { |
688 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 689 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 690 } |
691 return true; | |
692 } | |
693 | |
694 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
695 | |
696 // range of acceptable characters spelled out for portability reasons | |
697 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
698 #define BUFLEN 255 | |
699 char name[BUFLEN+1]; | |
700 char dummy; | |
701 | |
702 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
703 return set_bool_flag(name, false, origin); | |
704 } | |
705 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
706 return set_bool_flag(name, true, origin); | |
707 } | |
708 | |
709 char punct; | |
710 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
711 const char* value = strchr(arg, '=') + 1; | |
712 Flag* flag = Flag::find_flag(name, strlen(name)); | |
713 if (flag != NULL && flag->is_ccstr()) { | |
714 if (flag->ccstr_accumulates()) { | |
715 return append_to_string_flag(name, value, origin); | |
716 } else { | |
717 if (value[0] == '\0') { | |
718 value = NULL; | |
719 } | |
720 return set_string_flag(name, value, origin); | |
721 } | |
722 } | |
723 } | |
724 | |
725 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
726 const char* value = strchr(arg, '=') + 1; | |
727 // -XX:Foo:=xxx will reset the string flag to the given value. | |
728 if (value[0] == '\0') { | |
729 value = NULL; | |
730 } | |
731 return set_string_flag(name, value, origin); | |
732 } | |
733 | |
734 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
735 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
736 #define NUMBER_RANGE "[0123456789]" | |
737 char value[BUFLEN + 1]; | |
738 char value2[BUFLEN + 1]; | |
739 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
740 // Looks like a floating-point number -- try again with more lenient format string | |
741 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
742 return set_fp_numeric_flag(name, value, origin); | |
743 } | |
744 } | |
745 | |
746 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
747 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
748 return set_numeric_flag(name, value, origin); | |
749 } | |
750 | |
751 return false; | |
752 } | |
753 | |
754 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
755 assert(bldarray != NULL, "illegal argument"); | |
756 | |
757 if (arg == NULL) { | |
758 return; | |
759 } | |
760 | |
761 int index = *count; | |
762 | |
763 // expand the array and add arg to the last element | |
764 (*count)++; | |
765 if (*bldarray == NULL) { | |
6197 | 766 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
0 | 767 } else { |
6197 | 768 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
0 | 769 } |
770 (*bldarray)[index] = strdup(arg); | |
771 } | |
772 | |
773 void Arguments::build_jvm_args(const char* arg) { | |
774 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
775 } | |
776 | |
777 void Arguments::build_jvm_flags(const char* arg) { | |
778 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
779 } | |
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780 #ifdef GRAAL |
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781 void Arguments::add_graal_arg(const char* arg) { |
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782 add_string(&_graal_args_array, &_num_graal_args, arg); |
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783 } |
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784 #endif |
0 | 785 |
786 // utility function to return a string that concatenates all | |
787 // strings in a given char** array | |
788 const char* Arguments::build_resource_string(char** args, int count) { | |
789 if (args == NULL || count == 0) { | |
790 return NULL; | |
791 } | |
792 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
793 for (int i = 1; i < count; i++) { | |
794 length += strlen(args[i]) + 1; // add 1 for a space | |
795 } | |
796 char* s = NEW_RESOURCE_ARRAY(char, length); | |
797 strcpy(s, args[0]); | |
798 for (int j = 1; j < count; j++) { | |
799 strcat(s, " "); | |
800 strcat(s, args[j]); | |
801 } | |
802 return (const char*) s; | |
803 } | |
804 | |
805 void Arguments::print_on(outputStream* st) { | |
806 st->print_cr("VM Arguments:"); | |
807 if (num_jvm_flags() > 0) { | |
808 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
809 } | |
810 if (num_jvm_args() > 0) { | |
811 st->print("jvm_args: "); print_jvm_args_on(st); | |
812 } | |
813 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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814 if (_java_class_path != NULL) { |
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815 char* path = _java_class_path->value(); |
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816 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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817 } |
0 | 818 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
819 } | |
820 | |
821 void Arguments::print_jvm_flags_on(outputStream* st) { | |
822 if (_num_jvm_flags > 0) { | |
823 for (int i=0; i < _num_jvm_flags; i++) { | |
824 st->print("%s ", _jvm_flags_array[i]); | |
825 } | |
826 st->print_cr(""); | |
827 } | |
828 } | |
829 | |
830 void Arguments::print_jvm_args_on(outputStream* st) { | |
831 if (_num_jvm_args > 0) { | |
832 for (int i=0; i < _num_jvm_args; i++) { | |
833 st->print("%s ", _jvm_args_array[i]); | |
834 } | |
835 st->print_cr(""); | |
836 } | |
837 } | |
838 | |
242 | 839 bool Arguments::process_argument(const char* arg, |
840 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
841 | |
842 JDK_Version since = JDK_Version(); | |
0 | 843 |
3250 | 844 if (parse_argument(arg, origin) || ignore_unrecognized) { |
845 return true; | |
0 | 846 } |
3250 | 847 |
848 const char * const argname = *arg == '+' || *arg == '-' ? arg + 1 : arg; | |
849 if (is_newly_obsolete(arg, &since)) { | |
850 char version[256]; | |
851 since.to_string(version, sizeof(version)); | |
852 warning("ignoring option %s; support was removed in %s", argname, version); | |
853 return true; | |
854 } | |
855 | |
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856 // For locked flags, report a custom error message if available. |
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857 // Otherwise, report the standard unrecognized VM option. |
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858 |
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859 Flag* locked_flag = Flag::find_flag((char*)argname, strlen(argname), true); |
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860 if (locked_flag != NULL) { |
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861 char locked_message_buf[BUFLEN]; |
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862 locked_flag->get_locked_message(locked_message_buf, BUFLEN); |
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863 if (strlen(locked_message_buf) == 0) { |
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864 jio_fprintf(defaultStream::error_stream(), |
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865 "Unrecognized VM option '%s'\n", argname); |
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866 } else { |
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867 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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868 } |
6017 | 869 } else { |
870 jio_fprintf(defaultStream::error_stream(), | |
871 "Unrecognized VM option '%s'\n", argname); | |
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872 } |
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873 |
3250 | 874 // allow for commandline "commenting out" options like -XX:#+Verbose |
875 return arg[0] == '#'; | |
0 | 876 } |
877 | |
878 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
879 FILE* stream = fopen(file_name, "rb"); | |
880 if (stream == NULL) { | |
881 if (should_exist) { | |
882 jio_fprintf(defaultStream::error_stream(), | |
883 "Could not open settings file %s\n", file_name); | |
884 return false; | |
885 } else { | |
886 return true; | |
887 } | |
888 } | |
889 | |
890 char token[1024]; | |
891 int pos = 0; | |
892 | |
893 bool in_white_space = true; | |
894 bool in_comment = false; | |
895 bool in_quote = false; | |
896 char quote_c = 0; | |
897 bool result = true; | |
898 | |
899 int c = getc(stream); | |
6901 | 900 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 901 if (in_white_space) { |
902 if (in_comment) { | |
903 if (c == '\n') in_comment = false; | |
904 } else { | |
905 if (c == '#') in_comment = true; | |
906 else if (!isspace(c)) { | |
907 in_white_space = false; | |
908 token[pos++] = c; | |
909 } | |
910 } | |
911 } else { | |
912 if (c == '\n' || (!in_quote && isspace(c))) { | |
913 // token ends at newline, or at unquoted whitespace | |
914 // this allows a way to include spaces in string-valued options | |
915 token[pos] = '\0'; | |
916 logOption(token); | |
917 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
918 build_jvm_flags(token); | |
919 pos = 0; | |
920 in_white_space = true; | |
921 in_quote = false; | |
922 } else if (!in_quote && (c == '\'' || c == '"')) { | |
923 in_quote = true; | |
924 quote_c = c; | |
925 } else if (in_quote && (c == quote_c)) { | |
926 in_quote = false; | |
927 } else { | |
928 token[pos++] = c; | |
929 } | |
930 } | |
931 c = getc(stream); | |
932 } | |
933 if (pos > 0) { | |
934 token[pos] = '\0'; | |
935 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
936 build_jvm_flags(token); | |
937 } | |
938 fclose(stream); | |
939 return result; | |
940 } | |
941 | |
942 //============================================================================================================= | |
943 // Parsing of properties (-D) | |
944 | |
945 const char* Arguments::get_property(const char* key) { | |
946 return PropertyList_get_value(system_properties(), key); | |
947 } | |
948 | |
949 bool Arguments::add_property(const char* prop) { | |
950 const char* eq = strchr(prop, '='); | |
951 char* key; | |
952 // ns must be static--its address may be stored in a SystemProperty object. | |
953 const static char ns[1] = {0}; | |
954 char* value = (char *)ns; | |
955 | |
956 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 957 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 958 strncpy(key, prop, key_len); |
959 key[key_len] = '\0'; | |
960 | |
961 if (eq != NULL) { | |
962 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 963 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 964 strncpy(value, &prop[key_len + 1], value_len + 1); |
965 } | |
966 | |
967 if (strcmp(key, "java.compiler") == 0) { | |
968 process_java_compiler_argument(value); | |
969 FreeHeap(key); | |
970 if (eq != NULL) { | |
971 FreeHeap(value); | |
972 } | |
973 return true; | |
691 | 974 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 975 _java_command = value; |
976 | |
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977 // Record value in Arguments, but let it get passed to Java. |
691 | 978 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 979 // launcher.pid property is private and is processed |
980 // in process_sun_java_launcher_properties(); | |
981 // the sun.java.launcher property is passed on to the java application | |
982 FreeHeap(key); | |
983 if (eq != NULL) { | |
984 FreeHeap(value); | |
985 } | |
986 return true; | |
691 | 987 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 988 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
989 // its value without going through the property list or making a Java call. | |
990 _java_vendor_url_bug = value; | |
691 | 991 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
992 PropertyList_unique_add(&_system_properties, key, value, true); | |
993 return true; | |
0 | 994 } |
995 // Create new property and add at the end of the list | |
996 PropertyList_unique_add(&_system_properties, key, value); | |
997 return true; | |
998 } | |
999 | |
1000 //=========================================================================================================== | |
1001 // Setting int/mixed/comp mode flags | |
1002 | |
1003 void Arguments::set_mode_flags(Mode mode) { | |
1004 // Set up default values for all flags. | |
1005 // If you add a flag to any of the branches below, | |
1006 // add a default value for it here. | |
1007 set_java_compiler(false); | |
1008 _mode = mode; | |
1009 | |
1010 // Ensure Agent_OnLoad has the correct initial values. | |
1011 // This may not be the final mode; mode may change later in onload phase. | |
1012 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1013 (char*)VM_Version::vm_info_string(), false); |
0 | 1014 |
1015 UseInterpreter = true; | |
1016 UseCompiler = true; | |
1017 UseLoopCounter = true; | |
1018 | |
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1019 #ifndef ZERO |
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1020 // Turn these off for mixed and comp. Leave them on for Zero. |
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1021 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1022 UseFastAccessorMethods = (mode == _int); |
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1023 } |
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1024 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1025 UseFastEmptyMethods = (mode == _int); |
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1026 } |
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1027 #endif |
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1028 |
0 | 1029 // Default values may be platform/compiler dependent - |
1030 // use the saved values | |
1031 ClipInlining = Arguments::_ClipInlining; | |
1032 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1033 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1034 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1035 | |
1036 // Change from defaults based on mode | |
1037 switch (mode) { | |
1038 default: | |
1039 ShouldNotReachHere(); | |
1040 break; | |
1041 case _int: | |
1042 UseCompiler = false; | |
1043 UseLoopCounter = false; | |
1044 AlwaysCompileLoopMethods = false; | |
1045 UseOnStackReplacement = false; | |
1046 break; | |
1047 case _mixed: | |
1048 // same as default | |
1049 break; | |
1050 case _comp: | |
1051 UseInterpreter = false; | |
1052 BackgroundCompilation = false; | |
1053 ClipInlining = false; | |
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1054 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1055 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1056 // compile a level 4 (C2) and then continue executing it. |
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1057 if (TieredCompilation) { |
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1058 Tier3InvokeNotifyFreqLog = 0; |
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1059 Tier4InvocationThreshold = 0; |
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1060 } |
0 | 1061 break; |
1062 } | |
1063 } | |
1064 | |
1065 // Conflict: required to use shared spaces (-Xshare:on), but | |
1066 // incompatible command line options were chosen. | |
1067 | |
1068 static void no_shared_spaces() { | |
1069 if (RequireSharedSpaces) { | |
1070 jio_fprintf(defaultStream::error_stream(), | |
1071 "Class data sharing is inconsistent with other specified options.\n"); | |
1072 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1073 } else { | |
1074 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1075 } | |
1076 } | |
1077 | |
1783 | 1078 void Arguments::set_tiered_flags() { |
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1079 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1080 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1081 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1082 } |
1083 if (CompilationPolicyChoice < 2) { | |
1084 vm_exit_during_initialization( | |
1085 "Incompatible compilation policy selected", NULL); | |
1086 } | |
1891
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1087 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1088 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
1089 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
1090 } | |
1091 } | |
1092 | |
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1093 #if INCLUDE_ALTERNATE_GCS |
4838 | 1094 static void disable_adaptive_size_policy(const char* collector_name) { |
1095 if (UseAdaptiveSizePolicy) { | |
1096 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1097 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1098 collector_name); | |
1099 } | |
1100 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1101 } | |
1102 } | |
1103 | |
0 | 1104 void Arguments::set_parnew_gc_flags() { |
1064 | 1105 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
342
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1106 "control point invariant"); |
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1107 assert(UseParNewGC, "Error"); |
0 | 1108 |
4838 | 1109 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1110 disable_adaptive_size_policy("UseParNewGC"); | |
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1111 |
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1112 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1113 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1114 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1115 } else if (ParallelGCThreads == 0) { |
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1116 jio_fprintf(defaultStream::error_stream(), |
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1117 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1118 vm_exit(1); |
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1119 } |
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1120 |
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1121 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1122 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1123 // we set them to 1024 and 1024. |
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1124 // See CR 6362902. |
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1125 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1126 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1127 } |
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1128 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1129 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1130 } |
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1131 |
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1132 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1133 // See CR 6362902. |
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1134 if (AlwaysTenure) { |
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1135 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1136 } |
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1137 // When using compressed oops, we use local overflow stacks, |
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1138 // rather than using a global overflow list chained through |
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1139 // the klass word of the object's pre-image. |
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1140 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1141 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1142 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1143 } |
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1144 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1145 } |
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1146 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1147 } |
1148 | |
1149 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1150 // sparc/solaris for certain applications, but would gain from | |
1151 // further optimization and tuning efforts, and would almost | |
1152 // certainly gain from analysis of platform and environment. | |
1153 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1154 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1155 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1156 |
0 | 1157 // If we are using CMS, we prefer to UseParNewGC, |
1158 // unless explicitly forbidden. | |
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1159 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1160 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1161 } |
1162 | |
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1163 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1164 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1165 |
1166 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1167 // as needed. | |
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1168 if (UseParNewGC) { |
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1169 set_parnew_gc_flags(); |
0 | 1170 } |
1171 | |
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1172 // MaxHeapSize is aligned down in collectorPolicy |
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1173 size_t max_heap = align_size_down(MaxHeapSize, |
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1174 CardTableRS::ct_max_alignment_constraint()); |
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1175 |
0 | 1176 // Now make adjustments for CMS |
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1177 intx tenuring_default = (intx)6; |
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1178 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1179 |
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1180 // Preferred young gen size for "short" pauses: |
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1181 // upper bound depends on # of threads and NewRatio. |
0 | 1182 const uintx parallel_gc_threads = |
1183 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1184 const size_t preferred_max_new_size_unaligned = | |
2368
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1185 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1186 size_t preferred_max_new_size = |
0 | 1187 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1188 | |
1189 // Unless explicitly requested otherwise, size young gen | |
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1190 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
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1191 |
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1192 // If either MaxNewSize or NewRatio is set on the command line, |
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1193 // assume the user is trying to set the size of the young gen. |
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1194 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1195 |
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1196 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1197 // NewSize was set on the command line and it is larger than |
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1198 // preferred_max_new_size. |
0 | 1199 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1200 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1201 } else { |
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1202 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1203 } |
1064 | 1204 if (PrintGCDetails && Verbose) { |
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1205 // Too early to use gclog_or_tty |
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1206 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1207 } |
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1208 |
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1209 // Code along this path potentially sets NewSize and OldSize |
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1210 |
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1211 assert(max_heap >= InitialHeapSize, "Error"); |
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1212 assert(max_heap >= NewSize, "Error"); |
0 | 1213 |
1064 | 1214 if (PrintGCDetails && Verbose) { |
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1215 // Too early to use gclog_or_tty |
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1216 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1217 " initial_heap_size: " SIZE_FORMAT |
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1218 " max_heap: " SIZE_FORMAT, |
1064 | 1219 min_heap_size(), InitialHeapSize, max_heap); |
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1220 } |
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1221 size_t min_new = preferred_max_new_size; |
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1222 if (FLAG_IS_CMDLINE(NewSize)) { |
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1223 min_new = NewSize; |
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1224 } |
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1225 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1226 // Unless explicitly requested otherwise, make young gen |
1227 // at least min_new, and at most preferred_max_new_size. | |
1228 if (FLAG_IS_DEFAULT(NewSize)) { | |
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1229 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1230 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1231 if (PrintGCDetails && Verbose) { |
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1232 // Too early to use gclog_or_tty |
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1233 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
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1234 } |
0 | 1235 } |
1236 // Unless explicitly requested otherwise, size old gen | |
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1237 // so it's NewRatio x of NewSize. |
0 | 1238 if (FLAG_IS_DEFAULT(OldSize)) { |
1239 if (max_heap > NewSize) { | |
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1240 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1241 if (PrintGCDetails && Verbose) { |
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1242 // Too early to use gclog_or_tty |
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1243 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
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1244 } |
0 | 1245 } |
1246 } | |
1247 } | |
1248 } | |
1249 // Unless explicitly requested otherwise, definitely | |
1250 // promote all objects surviving "tenuring_default" scavenges. | |
1251 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1252 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1253 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1254 } |
1255 // If we decided above (or user explicitly requested) | |
1256 // `promote all' (via MaxTenuringThreshold := 0), | |
1257 // prefer minuscule survivor spaces so as not to waste | |
1258 // space for (non-existent) survivors | |
1259 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
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1260 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
0 | 1261 } |
1262 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1263 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1264 // This is done in order to make ParNew+CMS configuration to work | |
1265 // with YoungPLABSize and OldPLABSize options. | |
1266 // See CR 6362902. | |
1267 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1268 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1269 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1270 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1271 // the value (either from the command line or ergonomics) of |
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1272 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1273 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
1145
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1274 } else { |
0 | 1275 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1276 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1277 // we'll let it to take precedence. | |
1278 jio_fprintf(defaultStream::error_stream(), | |
886
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1279 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1280 " options are specified for the CMS collector." |
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1281 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1282 } |
1283 } | |
1145
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1284 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1285 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1286 // unless it was manually specified. This is because a too-low value |
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1287 // will slow down scavenges. |
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1288 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1289 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1290 } |
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1291 } |
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1292 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1293 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1294 // If either of the static initialization defaults have changed, note this |
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1295 // modification. |
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1296 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1297 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1298 } |
1284 | 1299 if (PrintGCDetails && Verbose) { |
1300 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1301 MarkStackSize / K, MarkStackSizeMax / K); | |
1302 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1303 } | |
0 | 1304 } |
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1305 #endif // INCLUDE_ALTERNATE_GCS |
0 | 1306 |
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1307 void set_object_alignment() { |
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1308 // Object alignment. |
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1309 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1310 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1311 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1312 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1313 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1314 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1315 |
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1316 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1317 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1318 |
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1319 // Oop encoding heap max |
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1320 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1321 |
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1322 #if INCLUDE_ALTERNATE_GCS |
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1323 // Set CMS global values |
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1324 CompactibleFreeListSpace::set_cms_values(); |
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1325 #endif // INCLUDE_ALTERNATE_GCS |
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1326 } |
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1327 |
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1328 bool verify_object_alignment() { |
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1329 // Object alignment. |
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1330 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1331 jio_fprintf(defaultStream::error_stream(), |
1829
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1332 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1333 (int)ObjectAlignmentInBytes); |
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1334 return false; |
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1335 } |
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1336 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1337 jio_fprintf(defaultStream::error_stream(), |
1829
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1338 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1339 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1340 return false; |
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1341 } |
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1342 // It does not make sense to have big object alignment |
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1343 // since a space lost due to alignment will be greater |
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1344 // then a saved space from compressed oops. |
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1345 if ((int)ObjectAlignmentInBytes > 256) { |
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1346 jio_fprintf(defaultStream::error_stream(), |
7461
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1347 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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1348 (int)ObjectAlignmentInBytes); |
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1349 return false; |
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1350 } |
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1351 // In case page size is very small. |
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1352 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1353 jio_fprintf(defaultStream::error_stream(), |
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1354 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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1355 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
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1356 return false; |
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1357 } |
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1358 return true; |
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1359 } |
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1360 |
135
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1361 inline uintx max_heap_for_compressed_oops() { |
1963 | 1362 // Avoid sign flip. |
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1363 if (OopEncodingHeapMax < ClassMetaspaceSize + os::vm_page_size()) { |
1963 | 1364 return 0; |
1365 } | |
6725
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1366 LP64_ONLY(return OopEncodingHeapMax - ClassMetaspaceSize - os::vm_page_size()); |
1064 | 1367 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1368 } |
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1369 |
0 | 1370 bool Arguments::should_auto_select_low_pause_collector() { |
1371 if (UseAutoGCSelectPolicy && | |
1372 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1373 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1374 if (PrintGCDetails) { | |
1375 // Cannot use gclog_or_tty yet. | |
1376 tty->print_cr("Automatic selection of the low pause collector" | |
1377 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1378 } | |
1379 return true; | |
1380 } | |
1381 return false; | |
1382 } | |
1383 | |
1384 void Arguments::set_ergonomics_flags() { | |
1385 | |
4946 | 1386 if (os::is_server_class_machine()) { |
0 | 1387 // If no other collector is requested explicitly, |
1388 // let the VM select the collector based on | |
1389 // machine class and automatic selection policy. | |
1390 if (!UseSerialGC && | |
1391 !UseConcMarkSweepGC && | |
342
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1392 !UseG1GC && |
0 | 1393 !UseParNewGC && |
1394 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1395 if (should_auto_select_low_pause_collector()) { | |
1396 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1397 } else { | |
1398 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1399 } | |
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1400 } |
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1401 // Shared spaces work fine with other GCs but causes bytecode rewriting |
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1402 // to be disabled, which hurts interpreter performance and decreases |
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1403 // server performance. On server class machines, keep the default |
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1404 // off unless it is asked for. Future work: either add bytecode rewriting |
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1405 // at link time, or rewrite bytecodes in non-shared methods. |
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1406 if (!DumpSharedSpaces && !RequireSharedSpaces) { |
0 | 1407 no_shared_spaces(); |
1408 } | |
1409 } | |
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1410 |
1010 | 1411 #ifndef ZERO |
113
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1412 #ifdef _LP64 |
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1413 // Check that UseCompressedOops can be set with the max heap size allocated |
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1414 // by ergonomics. |
187 | 1415 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
1783 | 1416 #if !defined(COMPILER1) || defined(TIERED) |
2228 | 1417 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
932 | 1418 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1419 } |
1060 | 1420 #endif |
325
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1421 #ifdef _WIN64 |
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1422 if (UseLargePages && UseCompressedOops) { |
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1423 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1424 // mode, when large pages are specified on windows. |
642
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1425 // This flag could be switched ON if narrow oop base address is set to 0, |
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1426 // see code in Universe::initialize_heap(). |
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1427 Universe::set_narrow_oop_use_implicit_null_checks(false); |
325
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1428 } |
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1429 #endif // _WIN64 |
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1430 } else { |
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1431 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
344 | 1432 warning("Max heap size too large for Compressed Oops"); |
113
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1433 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1434 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1435 } |
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1436 } |
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1437 // UseCompressedOops must be on for UseCompressedKlassPointers to be on. |
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1438 if (!UseCompressedOops) { |
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1439 if (UseCompressedKlassPointers) { |
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1440 warning("UseCompressedKlassPointers requires UseCompressedOops"); |
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1441 } |
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1442 FLAG_SET_DEFAULT(UseCompressedKlassPointers, false); |
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1443 } else { |
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1444 // Turn on UseCompressedKlassPointers too |
6848
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1445 if (FLAG_IS_DEFAULT(UseCompressedKlassPointers)) { |
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1446 FLAG_SET_ERGO(bool, UseCompressedKlassPointers, true); |
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1447 } |
6736
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1448 // Set the ClassMetaspaceSize to something that will not need to be |
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1449 // expanded, since it cannot be expanded. |
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1450 if (UseCompressedKlassPointers && FLAG_IS_DEFAULT(ClassMetaspaceSize)) { |
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1451 // 100,000 classes seems like a good size, so 100M assumes around 1K |
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1452 // per klass. The vtable and oopMap is embedded so we don't have a fixed |
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1453 // size per klass. Eventually, this will be parameterized because it |
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1454 // would also be useful to determine the optimal size of the |
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1455 // systemDictionary. |
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1456 FLAG_SET_ERGO(uintx, ClassMetaspaceSize, 100*M); |
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1457 } |
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1458 } |
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1459 // Also checks that certain machines are slower with compressed oops |
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1460 // in vm_version initialization code. |
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1461 #endif // _LP64 |
1010 | 1462 #endif // !ZERO |
0 | 1463 } |
1464 | |
1465 void Arguments::set_parallel_gc_flags() { | |
342
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1466 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1467 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1468 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1469 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1470 } |
4879 | 1471 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1472 |
1473 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1474 // of the physical memory, up to a maximum of 1GB. | |
7471
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1475 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1476 Abstract_VM_Version::parallel_worker_threads()); |
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1477 if (ParallelGCThreads == 0) { |
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1478 jio_fprintf(defaultStream::error_stream(), |
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|
1479 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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|
1480 vm_exit(1); |
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|
1481 } |
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1482 |
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1483 |
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1484 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
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1485 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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|
1486 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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|
1487 // See CR 6362902 for details. |
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1488 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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1489 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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|
1490 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1491 } |
7471
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1492 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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|
1493 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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|
1494 } |
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|
1495 } |
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|
1496 |
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|
1497 if (UseParallelOldGC) { |
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|
1498 // Par compact uses lower default values since they are treated as |
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1499 // minimums. These are different defaults because of the different |
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1500 // interpretation and are not ergonomically set. |
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|
1501 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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1502 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1503 } |
1504 } | |
1505 } | |
1506 | |
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1507 void Arguments::set_g1_gc_flags() { |
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|
1508 assert(UseG1GC, "Error"); |
7125
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Doug Simon <doug.simon@oracle.com>
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|
1509 #if defined(COMPILER1) || defined(GRAAL) |
342
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1510 FastTLABRefill = false; |
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1511 #endif |
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1512 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1513 Abstract_VM_Version::parallel_worker_threads()); |
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1514 if (ParallelGCThreads == 0) { |
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1515 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1516 Abstract_VM_Version::parallel_worker_threads()); |
342
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1517 } |
751 | 1518 |
7397
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1519 // MarkStackSize will be set (if it hasn't been set by the user) |
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1520 // when concurrent marking is initialized. |
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1521 // Its value will be based upon the number of parallel marking threads. |
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1522 // But we do set the maximum mark stack size here. |
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1523 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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|
1524 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1525 } |
1356 | 1526 |
1527 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1528 // In G1, we want the default GC overhead goal to be higher than | |
1529 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1530 // be expanded more aggressively than we would like it to. In | |
1531 // fact, even 10% seems to not be high enough in some cases | |
1532 // (especially small GC stress tests that the main thing they do | |
1533 // is allocation). We might consider increase it further. | |
1534 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1535 } | |
7397
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|
1536 |
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1537 if (PrintGCDetails && Verbose) { |
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|
1538 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
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|
1539 MarkStackSize / K, MarkStackSizeMax / K); |
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|
1540 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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1541 } |
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1542 } |
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1543 |
1064 | 1544 void Arguments::set_heap_size() { |
1545 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1546 // Deprecated flag | |
1547 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1548 } | |
1549 | |
1550 const julong phys_mem = | |
1551 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1552 : (julong)MaxRAM; | |
1553 | |
1554 // If the maximum heap size has not been set with -Xmx, | |
1555 // then set it as fraction of the size of physical memory, | |
1556 // respecting the maximum and minimum sizes of the heap. | |
342
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1557 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1558 julong reasonable_max = phys_mem / MaxRAMFraction; |
1559 | |
1560 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1561 // Small physical memory, so use a minimum fraction of it for the heap | |
1562 reasonable_max = phys_mem / MinRAMFraction; | |
1563 } else { | |
1564 // Not-small physical memory, so require a heap at least | |
1565 // as large as MaxHeapSize | |
1566 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1567 } | |
1568 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1569 // Limit the heap size to ErgoHeapSizeLimit | |
1570 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
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1571 } |
1064 | 1572 if (UseCompressedOops) { |
1573 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1574 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1575 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1576 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1577 // but it should be not less than default MaxHeapSize. | |
1578 max_coop_heap -= HeapBaseMinAddress; | |
1579 } | |
1580 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1581 } |
1582 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
1583 | |
1584 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1585 // An initial heap size was specified on the command line, | |
1586 // so be sure that the maximum size is consistent. Done | |
1587 // after call to allocatable_physical_memory because that | |
1588 // method might reduce the allocation size. | |
1589 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1590 } | |
1591 | |
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1592 if (PrintGCDetails && Verbose) { |
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1593 // Cannot use gclog_or_tty yet. |
1064 | 1594 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
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1595 } |
1064 | 1596 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1597 } | |
1598 | |
1599 // If the initial_heap_size has not been set with InitialHeapSize | |
1600 // or -Xms, then set it as fraction of the size of physical memory, | |
1601 // respecting the maximum and minimum sizes of the heap. | |
1602 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1074
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|
1603 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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1604 |
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|
1605 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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1606 |
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|
1607 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
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|
1608 |
1064 | 1609 julong reasonable_initial = phys_mem / InitialRAMFraction; |
1610 | |
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1611 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
1064 | 1612 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
1613 | |
1614 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
1615 | |
1616 if (PrintGCDetails && Verbose) { | |
1617 // Cannot use gclog_or_tty yet. | |
1618 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1619 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
changeset
|
1620 } |
1064 | 1621 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
phh
parents:
1069
diff
changeset
|
1622 set_min_heap_size((uintx)reasonable_minimum); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
changeset
|
1623 } |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1624 } |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
changeset
|
1625 |
0 | 1626 // This must be called after ergonomics because we want bytecode rewriting |
1627 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1628 void Arguments::set_bytecode_flags() { | |
1629 // Better not attempt to store into a read-only space. | |
1630 if (UseSharedSpaces) { | |
1631 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1632 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1633 } | |
1634 | |
1635 if (!RewriteBytecodes) { | |
1636 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1637 } | |
1638 } | |
1639 | |
1640 // Aggressive optimization flags -XX:+AggressiveOpts | |
1641 void Arguments::set_aggressive_opts_flags() { | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1642 #ifdef COMPILER2 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1643 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1644 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1645 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1646 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1647 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1648 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1649 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1650 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1651 // 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
|
1652 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1653 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
|
1654 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1655 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1656 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1657 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1658 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1659 #endif |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1660 |
0 | 1661 if (AggressiveOpts) { |
61 | 1662 // Sample flag setting code |
1663 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1664 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1665 // } | |
0 | 1666 } |
1667 } | |
1668 | |
1669 //=========================================================================================================== | |
1670 // Parsing of java.compiler property | |
1671 | |
1672 void Arguments::process_java_compiler_argument(char* arg) { | |
1673 // For backwards compatibility, Djava.compiler=NONE or "" | |
1674 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1675 // is also specified. | |
1676 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1677 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1678 } | |
1679 } | |
1680 | |
1681 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1682 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1683 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1684 _created_by_gamma_launcher = true; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1685 } |
0 | 1686 } |
1687 | |
1688 bool Arguments::created_by_java_launcher() { | |
1689 assert(_sun_java_launcher != NULL, "property must have value"); | |
1690 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1691 } | |
1692 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1693 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1694 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1695 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1696 |
0 | 1697 //=========================================================================================================== |
1698 // Parsing of main arguments | |
1699 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1700 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
|
1701 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1702 // Returns true iff value is in the inclusive interval [min..max] |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1703 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1704 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1705 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1706 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1707 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1708 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1709 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1710 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1711 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1712 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1713 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1714 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1715 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1716 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1717 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1718 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1719 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1720 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1721 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1722 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1723 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1724 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1725 |
0 | 1726 bool Arguments::verify_percentage(uintx value, const char* name) { |
1727 if (value <= 100) { | |
1728 return true; | |
1729 } | |
1730 jio_fprintf(defaultStream::error_stream(), | |
1731 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1732 name, value); | |
1733 return false; | |
1734 } | |
1735 | |
1064 | 1736 static void force_serial_gc() { |
0 | 1737 FLAG_SET_DEFAULT(UseSerialGC, true); |
1738 FLAG_SET_DEFAULT(UseParNewGC, false); | |
1739 FLAG_SET_DEFAULT(UseConcMarkSweepGC, false); | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1740 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
0 | 1741 FLAG_SET_DEFAULT(UseParallelGC, false); |
1742 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1743 FLAG_SET_DEFAULT(UseG1GC, false); |
0 | 1744 } |
1745 | |
1746 static bool verify_serial_gc_flags() { | |
1747 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1748 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1749 UseParallelGC || UseParallelOldGC)); |
0 | 1750 } |
1751 | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1752 // check if do gclog rotation |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1753 // +UseGCLogFileRotation is a must, |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1754 // no gc log rotation when log file not supplied or |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1755 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1756 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1757 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1758 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1759 (NumberOfGCLogFiles == 0) || |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1760 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1761 jio_fprintf(defaultStream::output_stream(), |
3769
ef2d1b8f2dd4
7051430: CMS: ongoing CMS cycle should terminate abruptly to allow prompt JVM termination at exit
ysr
parents:
3767
diff
changeset
|
1762 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1763 "where num_of_file > 0 and num_of_size > 0\n" |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1764 "GC log rotation is turned off\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1765 UseGCLogFileRotation = false; |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1766 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1767 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1768 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1769 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1770 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1771 jio_fprintf(defaultStream::output_stream(), |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1772 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1773 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1774 } |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1775 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1776 // Check consistency of GC selection |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1777 bool Arguments::check_gc_consistency() { |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
1778 check_gclog_consistency(); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1779 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1780 // Ensure that the user has not selected conflicting sets |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1781 // of collectors. [Note: this check is merely a user convenience; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1782 // collectors over-ride each other so that only a non-conflicting |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1783 // set is selected; however what the user gets is not what they |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1784 // may have expected from the combination they asked for. It's |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1785 // better to reduce user confusion by not allowing them to |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1786 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1787 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
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1788 if (UseSerialGC) i++; |
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1789 if (UseConcMarkSweepGC || UseParNewGC) i++; |
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1790 if (UseParallelGC || UseParallelOldGC) i++; |
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1791 if (UseG1GC) i++; |
10
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1792 if (i > 1) { |
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1793 jio_fprintf(defaultStream::error_stream(), |
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1794 "Conflicting collector combinations in option list; " |
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1795 "please refer to the release notes for the combinations " |
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1796 "allowed\n"); |
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1797 status = false; |
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1798 } |
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|
1799 |
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1800 return status; |
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1801 } |
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1802 |
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1803 void Arguments::check_deprecated_gcs() { |
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1804 if (UseConcMarkSweepGC && !UseParNewGC) { |
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1805 warning("Using the DefNew young collector with the CMS collector is deprecated " |
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1806 "and will likely be removed in a future release"); |
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1807 } |
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1808 |
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1809 if (UseParNewGC && !UseConcMarkSweepGC) { |
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1810 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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1811 // set up UseSerialGC properly, so that can't be used in the check here. |
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1812 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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1813 "and will likely be removed in a future release"); |
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1814 } |
7453 | 1815 |
1816 if (CMSIncrementalMode) { | |
1817 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1818 } | |
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1819 } |
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1820 |
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1821 // Check stack pages settings |
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1822 bool Arguments::check_stack_pages() |
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1823 { |
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1824 bool status = true; |
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1825 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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1826 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
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1827 // greater stack shadow pages can't generate instruction to bang stack |
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1828 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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1829 return status; |
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1830 } |
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1831 |
0 | 1832 // Check the consistency of vm_init_args |
1833 bool Arguments::check_vm_args_consistency() { | |
1834 // Method for adding checks for flag consistency. | |
1835 // The intent is to warn the user of all possible conflicts, | |
1836 // before returning an error. | |
1837 // Note: Needs platform-dependent factoring. | |
1838 bool status = true; | |
1839 | |
1840 #if ( (defined(COMPILER2) && defined(SPARC))) | |
1841 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
1842 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
1843 // x86. Normally, VM_Version_init must be called from init_globals in | |
1844 // init.cpp, which is called by the initial java thread *after* arguments | |
1845 // have been parsed. VM_Version_init gets called twice on sparc. | |
1846 extern void VM_Version_init(); | |
1847 VM_Version_init(); | |
1848 if (!VM_Version::has_v9()) { | |
1849 jio_fprintf(defaultStream::error_stream(), | |
1850 "V8 Machine detected, Server requires V9\n"); | |
1851 status = false; | |
1852 } | |
1853 #endif /* COMPILER2 && SPARC */ | |
1854 | |
1855 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1856 // builds so the cost of stack banging can be measured. | |
1857 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1858 if (!UseBoundThreads && !UseStackBanging) { | |
1859 jio_fprintf(defaultStream::error_stream(), | |
1860 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1861 | |
1862 status = false; | |
1863 } | |
1864 #endif | |
1865 | |
1866 if (TLABRefillWasteFraction == 0) { | |
1867 jio_fprintf(defaultStream::error_stream(), | |
1868 "TLABRefillWasteFraction should be a denominator, " | |
1869 "not " SIZE_FORMAT "\n", | |
1870 TLABRefillWasteFraction); | |
1871 status = false; | |
1872 } | |
1873 | |
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1874 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
0 | 1875 "AdaptiveSizePolicyWeight"); |
10
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1876 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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1877 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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1878 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1879 |
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1880 // Divide by bucket size to prevent a large size from causing rollover when |
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1881 // calculating amount of memory needed to be allocated for the String table. |
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1882 status = status && verify_interval(StringTableSize, defaultStringTableSize, |
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1883 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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1884 |
0 | 1885 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
1886 jio_fprintf(defaultStream::error_stream(), | |
1887 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1888 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1889 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1890 status = false; | |
1891 } | |
1892 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1893 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1894 | |
1895 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
1896 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1897 } | |
1898 | |
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1899 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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1900 // Settings to encourage splitting. |
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1901 if (!FLAG_IS_CMDLINE(NewRatio)) { |
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1902 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
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1903 } |
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1904 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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1905 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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1906 } |
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1907 } |
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1908 |
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1909 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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1910 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1911 if (GCTimeLimit == 100) { |
1912 // Turn off gc-overhead-limit-exceeded checks | |
1913 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
1914 } | |
1915 | |
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1916 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
0 | 1917 |
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1918 status = status && check_gc_consistency(); |
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1919 status = status && check_stack_pages(); |
0 | 1920 |
1921 if (_has_alloc_profile) { | |
1922 if (UseParallelGC || UseParallelOldGC) { | |
1923 jio_fprintf(defaultStream::error_stream(), | |
1924 "error: invalid argument combination.\n" | |
1925 "Allocation profiling (-Xaprof) cannot be used together with " | |
1926 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
1927 status = false; | |
1928 } | |
1929 if (UseConcMarkSweepGC) { | |
1930 jio_fprintf(defaultStream::error_stream(), | |
1931 "error: invalid argument combination.\n" | |
1932 "Allocation profiling (-Xaprof) cannot be used together with " | |
1933 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
1934 status = false; | |
1935 } | |
1936 } | |
1937 | |
1938 if (CMSIncrementalMode) { | |
1939 if (!UseConcMarkSweepGC) { | |
1940 jio_fprintf(defaultStream::error_stream(), | |
1941 "error: invalid argument combination.\n" | |
1942 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
1943 "selected in order\nto use CMSIncrementalMode.\n"); | |
1944 status = false; | |
1945 } else { | |
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1946 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 1947 "CMSIncrementalDutyCycle"); |
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1948 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 1949 "CMSIncrementalDutyCycleMin"); |
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1950 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 1951 "CMSIncrementalSafetyFactor"); |
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1952 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 1953 "CMSIncrementalOffset"); |
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1954 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 1955 "CMSExpAvgFactor"); |
1956 // If it was not set on the command line, set | |
1957 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
1958 if (CMSInitiatingOccupancyFraction < 0) { | |
1959 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
1960 } | |
1961 } | |
1962 } | |
1963 | |
1964 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
1965 // insists that we hold the requisite locks so that the iteration is | |
1966 // MT-safe. For the verification at start-up and shut-down, we don't | |
1967 // yet have a good way of acquiring and releasing these locks, | |
1968 // which are not visible at the CollectedHeap level. We want to | |
1969 // be able to acquire these locks and then do the iteration rather | |
1970 // than just disable the lock verification. This will be fixed under | |
1971 // bug 4788986. | |
1972 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
1973 if (VerifyGCStartAt == 0) { | |
1974 warning("Heap verification at start-up disabled " | |
1975 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
1976 VerifyGCStartAt = 1; // Disable verification at start-up | |
1977 } | |
1978 if (VerifyBeforeExit) { | |
1979 warning("Heap verification at shutdown disabled " | |
1980 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
1981 VerifyBeforeExit = false; // Disable verification at shutdown | |
1982 } | |
1983 } | |
1984 | |
1985 // Note: only executed in non-PRODUCT mode | |
1986 if (!UseAsyncConcMarkSweepGC && | |
1987 (ExplicitGCInvokesConcurrent || | |
1988 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
1989 jio_fprintf(defaultStream::error_stream(), | |
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1990 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 1991 " with -UseAsyncConcMarkSweepGC"); |
1992 status = false; | |
1993 } | |
1994 | |
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|
1995 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
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1996 |
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|
1997 #ifndef SERIALGC |
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1998 if (UseG1GC) { |
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1999 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
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2000 "InitiatingHeapOccupancyPercent"); |
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2001 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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2002 "G1RefProcDrainInterval"); |
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2003 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
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2004 "G1ConcMarkStepDurationMillis"); |
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|
2005 } |
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|
2006 #endif |
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2007 |
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|
2008 status = status && verify_interval(RefDiscoveryPolicy, |
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|
2009 ReferenceProcessor::DiscoveryPolicyMin, |
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1188
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|
2010 ReferenceProcessor::DiscoveryPolicyMax, |
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|
2011 "RefDiscoveryPolicy"); |
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|
2012 |
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|
2013 // 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
|
2014 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2015 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2016 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2017 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2018 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
|
2019 |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2020 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
|
2021 "ClassMetaspaceSize"); |
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2022 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2023 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2024 1, (max_jint - 1), "MarkStackSizeMax"); |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2025 |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2026 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2027 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2028 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2029 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2030 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2031 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2032 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2033 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2034 " 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
|
2035 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2036 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2037 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2038 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2039 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2040 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2041 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2042 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2043 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
|
2044 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2045 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2046 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2047 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2048 } |
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
|
2049 #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
|
2050 if (UseCompressedOops) { |
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
|
2051 jio_fprintf(defaultStream::error_stream(), |
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
|
2052 "CompressedOops are not supported in Graal at the moment\n"); |
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
|
2053 status = false; |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2054 } else { |
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2055 // 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
|
2056 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
|
2057 } |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2058 |
6995
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2059 if (UseCompressedKlassPointers) { |
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2060 jio_fprintf(defaultStream::error_stream(), |
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2061 "UseCompressedKlassPointers are not supported in Graal at the moment\n"); |
edb2d7ed9a01
ensure UseCompressedKlassPointers is disabled in Graal VM
Doug Simon <doug.simon@oracle.com>
parents:
6948
diff
changeset
|
2062 status = false; |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2063 } else { |
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2064 // 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
|
2065 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
|
2066 } |
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
|
2067 |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2068 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
|
2069 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
|
2070 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
|
2071 } |
e522a00b91aa
Merge with http://hg.openjdk.java.net/hsx/hsx25/hotspot/ after NPG - C++ build works
Doug Simon <doug.simon@oracle.com>
diff
changeset
|
2072 |
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
|
2073 #endif |
0 | 2074 return status; |
2075 } | |
2076 | |
2077 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2078 const char* option_type) { | |
2079 if (ignore) return false; | |
2080 | |
2081 const char* spacer = " "; | |
2082 if (option_type == NULL) { | |
2083 option_type = ++spacer; // Set both to the empty string. | |
2084 } | |
2085 | |
2086 if (os::obsolete_option(option)) { | |
2087 jio_fprintf(defaultStream::error_stream(), | |
2088 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2089 option->optionString); | |
2090 return false; | |
2091 } else { | |
2092 jio_fprintf(defaultStream::error_stream(), | |
2093 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2094 option->optionString); | |
2095 return true; | |
2096 } | |
2097 } | |
2098 | |
2099 static const char* user_assertion_options[] = { | |
2100 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2101 }; | |
2102 | |
2103 static const char* system_assertion_options[] = { | |
2104 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2105 }; | |
2106 | |
2107 // Return true if any of the strings in null-terminated array 'names' matches. | |
2108 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2109 // the option must match exactly. | |
2110 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2111 bool tail_allowed) { | |
2112 for (/* empty */; *names != NULL; ++names) { | |
2113 if (match_option(option, *names, tail)) { | |
2114 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2115 return true; | |
2116 } | |
2117 } | |
2118 } | |
2119 return false; | |
2120 } | |
2121 | |
1284 | 2122 bool Arguments::parse_uintx(const char* value, |
2123 uintx* uintx_arg, | |
2124 uintx min_size) { | |
2125 | |
2126 // Check the sign first since atomull() parses only unsigned values. | |
2127 bool value_is_positive = !(*value == '-'); | |
2128 | |
2129 if (value_is_positive) { | |
2130 julong n; | |
2131 bool good_return = atomull(value, &n); | |
2132 if (good_return) { | |
2133 bool above_minimum = n >= min_size; | |
2134 bool value_is_too_large = n > max_uintx; | |
2135 | |
2136 if (above_minimum && !value_is_too_large) { | |
2137 *uintx_arg = n; | |
2138 return true; | |
2139 } | |
2140 } | |
2141 } | |
2142 return false; | |
2143 } | |
2144 | |
0 | 2145 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
|
2146 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2147 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2148 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2149 return check_memory_size(*long_arg, min_size); |
2150 } | |
2151 | |
2152 // Parse JavaVMInitArgs structure | |
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
|
2153 #ifdef GRAAL |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2154 static void prepend_to_graal_classpath(SysClassPath &cp, const char* path) { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2155 cp.add_prefix(path); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2156 } |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2157 |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2158 static void prepend_to_graal_classpath(SysClassPath &cp, const char* graal_dir, const char* project) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2159 const int BUFFER_SIZE = 1024; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2160 char path[BUFFER_SIZE]; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2161 |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2162 const char fileSep = *os::file_separator(); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2163 sprintf(path, "%s%c%s%cbin", graal_dir, fileSep, project, fileSep); |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2164 |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2165 DIR* dir = os::opendir(path); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2166 if (dir == NULL) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2167 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The Graal class directory %s could not be opened.\n", path); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2168 vm_exit(1); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2169 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2170 os::closedir(dir); |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2171 prepend_to_graal_classpath(cp, path); |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2172 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2173 |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2174 // Walk up the directory hierarchy starting from JAVA_HOME looking |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2175 // for a directory named "graal". If found, then the full path to |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2176 // this directory is returned in graal_dir. |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2177 static bool find_graal_dir(char* graal_dir) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2178 strcpy(graal_dir, Arguments::get_java_home()); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2179 char* end = graal_dir + strlen(graal_dir); |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2180 const char fileSep = *os::file_separator(); |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2181 while (end != graal_dir) { |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2182 if (fileSep == '/') |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2183 strcat(graal_dir, "/graal"); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2184 else { |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2185 assert(fileSep == '\\', "unexpected separator char"); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2186 strcat(graal_dir, "\\graal"); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2187 } |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2188 DIR* dir = os::opendir(graal_dir); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2189 if (dir != NULL) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2190 os::closedir(dir); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2191 return true; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2192 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2193 *end = 0; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2194 while (end != graal_dir) { |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2195 if (*end == fileSep) { |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2196 *end = 0; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2197 break; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2198 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2199 end--; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2200 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2201 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2202 return false; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2203 } |
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
|
2204 #endif |
0 | 2205 |
2206 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2207 // For components of the system classpath. | |
2208 SysClassPath scp(Arguments::get_sysclasspath()); | |
2209 bool scp_assembly_required = false; | |
2210 | |
2211 // Save default settings for some mode flags | |
2212 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2213 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2214 Arguments::_ClipInlining = ClipInlining; | |
2215 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2216 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2217 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2218 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2219 |
0 | 2220 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2221 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2222 if (result != JNI_OK) { | |
2223 return result; | |
2224 } | |
2225 | |
2226 // Parse JavaVMInitArgs structure passed in | |
2227 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2228 if (result != JNI_OK) { | |
2229 return result; | |
2230 } | |
2231 | |
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
|
2232 #ifdef GRAAL |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2233 if (PrintVMOptions) { |
3568
409ef3a68dc8
re-lock objects whose lock was removed by escape analysis, enable stack walking compilation policy (-XX:CompilationPolicyChoice=1)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3546
diff
changeset
|
2234 tty->print_cr("Running Graal VM... "); |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2235 } |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2236 |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2237 SysClassPath scp_compiler(""); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2238 |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2239 if (GraalClassPath != NULL) { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2240 prepend_to_graal_classpath(scp_compiler, GraalClassPath); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2241 } else { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2242 const int BUFFER_SIZE = 1024; |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2243 char graal_dir[BUFFER_SIZE]; |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2244 if (!os::getenv("GRAAL", graal_dir, sizeof(graal_dir))) { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2245 if (find_graal_dir(graal_dir) == false) { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2246 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The GRAAL environment variable needs to point to the directory containing the Graal projects.\n"); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2247 vm_exit(0); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2248 } |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2249 } |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2250 if (PrintVMOptions) tty->print_cr("GRAAL=%s", graal_dir); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2251 |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2252 // this declaration is checked for correctness by 'mx build' - only |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2253 // modify its entries, not its name or shape |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2254 const char* graal_projects[] = { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2255 #ifdef AMD64 |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2256 "com.oracle.graal.amd64", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2257 "com.oracle.graal.asm.amd64", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2258 "com.oracle.graal.lir.amd64", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2259 "com.oracle.graal.compiler.amd64", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2260 "com.oracle.graal.hotspot.amd64", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2261 #endif |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2262 "com.oracle.graal.api.runtime", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2263 "com.oracle.graal.api.meta", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2264 "com.oracle.graal.api.code", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2265 "com.oracle.graal.hotspot", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2266 "com.oracle.graal.asm", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2267 "com.oracle.graal.alloc", |
7300
2912b72d840a
More complete and reusable Word type
Christian Wimmer <christian.wimmer@oracle.com>
parents:
7212
diff
changeset
|
2268 "com.oracle.graal.word", |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2269 "com.oracle.graal.snippets", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2270 "com.oracle.graal.compiler", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2271 "com.oracle.graal.loop", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2272 "com.oracle.graal.phases", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2273 "com.oracle.graal.phases.common", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2274 "com.oracle.graal.virtual", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2275 "com.oracle.graal.nodes", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2276 "com.oracle.graal.printer", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2277 "com.oracle.graal.debug", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2278 "com.oracle.graal.graph", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2279 "com.oracle.graal.lir", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2280 "com.oracle.graal.bytecode", |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2281 "com.oracle.graal.java" |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2282 }; |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2283 |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2284 const int len = sizeof(graal_projects) / sizeof(char*); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2285 for (int i = 0; i < len; i++) { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2286 if (PrintVMOptions) { |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2287 tty->print_cr("Adding project directory %s to bootclasspath", graal_projects[i]); |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2288 } |
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2289 prepend_to_graal_classpath(scp_compiler, graal_dir, graal_projects[i]); |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2290 } |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2291 } |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2292 |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2293 scp_compiler.expand_endorsed(); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2294 Arguments::set_compilerclasspath(scp_compiler.combined_path()); |
7062
8c5333c80cfd
increased CompileThreshold to increase reliability of profiling information
Christian Haeubl <haeubl@ssw.jku.at>
parents:
6646
diff
changeset
|
2295 |
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
|
2296 #endif |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2297 |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2298 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2299 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2300 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2301 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2302 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2303 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
|
2304 strlen(altclasses_jar); |
6197 | 2305 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
531
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2306 strcpy(altclasses_path, get_meta_index_dir()); |
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2307 strcat(altclasses_path, altclasses_jar); |
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2308 scp.add_suffix_to_prefix(altclasses_path); |
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2309 scp_assembly_required = true; |
6197 | 2310 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
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2311 } |
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2312 |
5915 | 2313 if (WhiteBoxAPI) { |
2314 // Append wb.jar to bootclasspath if enabled | |
2315 const char* wb_jar = "wb.jar"; | |
2316 size_t wb_path_len = strlen(get_meta_index_dir()) + 1 + | |
2317 strlen(wb_jar); | |
6197 | 2318 char* wb_path = NEW_C_HEAP_ARRAY(char, wb_path_len, mtInternal); |
5915 | 2319 strcpy(wb_path, get_meta_index_dir()); |
2320 strcat(wb_path, wb_jar); | |
2321 scp.add_suffix(wb_path); | |
2322 scp_assembly_required = true; | |
6197 | 2323 FREE_C_HEAP_ARRAY(char, wb_path, mtInternal); |
5915 | 2324 } |
2325 | |
0 | 2326 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2327 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2328 if (result != JNI_OK) { | |
2329 return result; | |
2330 } | |
2331 | |
2332 // Do final processing now that all arguments have been parsed | |
2333 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2334 if (result != JNI_OK) { | |
2335 return result; | |
2336 } | |
2337 | |
2338 return JNI_OK; | |
2339 } | |
2340 | |
2341 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
2342 SysClassPath* scp_p, | |
2343 bool* scp_assembly_required_p, | |
2344 FlagValueOrigin origin) { | |
2345 // Remaining part of option string | |
2346 const char* tail; | |
2347 | |
2348 // iterate over arguments | |
2349 for (int index = 0; index < args->nOptions; index++) { | |
2350 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2351 | |
2352 const JavaVMOption* option = args->options + index; | |
2353 | |
2354 if (!match_option(option, "-Djava.class.path", &tail) && | |
2355 !match_option(option, "-Dsun.java.command", &tail) && | |
2356 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2357 | |
2358 // add all jvm options to the jvm_args string. This string | |
2359 // is used later to set the java.vm.args PerfData string constant. | |
2360 // the -Djava.class.path and the -Dsun.java.command options are | |
2361 // omitted from jvm_args string as each have their own PerfData | |
2362 // string constant object. | |
2363 build_jvm_args(option->optionString); | |
2364 } | |
2365 | |
2366 // -verbose:[class/gc/jni] | |
2367 if (match_option(option, "-verbose", &tail)) { | |
2368 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2369 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2370 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2371 } else if (!strcmp(tail, ":gc")) { | |
2372 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2373 } else if (!strcmp(tail, ":jni")) { | |
2374 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2375 } | |
2376 // -da / -ea / -disableassertions / -enableassertions | |
2377 // These accept an optional class/package name separated by a colon, e.g., | |
2378 // -da:java.lang.Thread. | |
2379 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2380 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2381 if (*tail == '\0') { | |
2382 JavaAssertions::setUserClassDefault(enable); | |
2383 } else { | |
2384 assert(*tail == ':', "bogus match by match_option()"); | |
2385 JavaAssertions::addOption(tail + 1, enable); | |
2386 } | |
2387 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2388 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2389 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2390 JavaAssertions::setSystemClassDefault(enable); | |
2391 // -bootclasspath: | |
2392 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2393 scp_p->reset_path(tail); | |
2394 *scp_assembly_required_p = true; | |
2395 // -bootclasspath/a: | |
2396 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2397 scp_p->add_suffix(tail); | |
2398 *scp_assembly_required_p = true; | |
2399 // -bootclasspath/p: | |
2400 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2401 scp_p->add_prefix(tail); | |
2402 *scp_assembly_required_p = true; | |
2403 // -Xrun | |
2404 } else if (match_option(option, "-Xrun", &tail)) { | |
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2405 if (tail != NULL) { |
0 | 2406 const char* pos = strchr(tail, ':'); |
2407 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2408 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2409 name[len] = '\0'; |
2410 | |
2411 char *options = NULL; | |
2412 if(pos != NULL) { | |
2413 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2414 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2415 } |
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2416 #if !INCLUDE_JVMTI |
0 | 2417 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2418 warning("profiling and debugging agents are not supported in this VM"); |
0 | 2419 } else |
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2420 #endif // !INCLUDE_JVMTI |
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2421 add_init_library(name, options); |
0 | 2422 } |
2423 // -agentlib and -agentpath | |
2424 } else if (match_option(option, "-agentlib:", &tail) || | |
2425 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2426 if(tail != NULL) { | |
2427 const char* pos = strchr(tail, '='); | |
2428 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2429 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2430 name[len] = '\0'; |
2431 | |
2432 char *options = NULL; | |
2433 if(pos != NULL) { | |
6197 | 2434 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2435 } |
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2436 #if !INCLUDE_JVMTI |
0 | 2437 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2438 warning("profiling and debugging agents are not supported in this VM"); |
0 | 2439 } else |
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2440 #endif // !INCLUDE_JVMTI |
0 | 2441 add_init_agent(name, options, is_absolute_path); |
2442 | |
2443 } | |
2444 // -javaagent | |
2445 } else if (match_option(option, "-javaagent:", &tail)) { | |
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2446 #if !INCLUDE_JVMTI |
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2447 warning("Instrumentation agents are not supported in this VM"); |
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2448 #else |
0 | 2449 if(tail != NULL) { |
6197 | 2450 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2451 add_init_agent("instrument", options, false); |
2452 } | |
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2453 #endif // !INCLUDE_JVMTI |
0 | 2454 // -Xnoclassgc |
2455 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2456 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2457 // -Xincgc: i-CMS | |
2458 } else if (match_option(option, "-Xincgc", &tail)) { | |
2459 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2460 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2461 // -Xnoincgc: no i-CMS | |
2462 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2463 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2464 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2465 // -Xconcgc | |
2466 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2467 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2468 // -Xnoconcgc | |
2469 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2470 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2471 // -Xbatch | |
2472 } else if (match_option(option, "-Xbatch", &tail)) { | |
2473 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2474 // -Xmn for compatibility with other JVM vendors | |
2475 } else if (match_option(option, "-Xmn", &tail)) { | |
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2476 julong long_initial_eden_size = 0; |
0 | 2477 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2478 if (errcode != arg_in_range) { | |
2479 jio_fprintf(defaultStream::error_stream(), | |
2480 "Invalid initial eden size: %s\n", option->optionString); | |
2481 describe_range_error(errcode); | |
2482 return JNI_EINVAL; | |
2483 } | |
1064 | 2484 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2485 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2486 // -Xms |
2487 } else if (match_option(option, "-Xms", &tail)) { | |
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2488 julong long_initial_heap_size = 0; |
0 | 2489 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
2490 if (errcode != arg_in_range) { | |
2491 jio_fprintf(defaultStream::error_stream(), | |
2492 "Invalid initial heap size: %s\n", option->optionString); | |
2493 describe_range_error(errcode); | |
2494 return JNI_EINVAL; | |
2495 } | |
1064 | 2496 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2497 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2498 set_min_heap_size(InitialHeapSize); |
0 | 2499 // -Xmx |
2500 } else if (match_option(option, "-Xmx", &tail)) { | |
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2501 julong long_max_heap_size = 0; |
0 | 2502 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2503 if (errcode != arg_in_range) { | |
2504 jio_fprintf(defaultStream::error_stream(), | |
2505 "Invalid maximum heap size: %s\n", option->optionString); | |
2506 describe_range_error(errcode); | |
2507 return JNI_EINVAL; | |
2508 } | |
1064 | 2509 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2510 // Xmaxf |
2511 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2512 int maxf = (int)(atof(tail) * 100); | |
2513 if (maxf < 0 || maxf > 100) { | |
2514 jio_fprintf(defaultStream::error_stream(), | |
2515 "Bad max heap free percentage size: %s\n", | |
2516 option->optionString); | |
2517 return JNI_EINVAL; | |
2518 } else { | |
2519 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2520 } | |
2521 // Xminf | |
2522 } else if (match_option(option, "-Xminf", &tail)) { | |
2523 int minf = (int)(atof(tail) * 100); | |
2524 if (minf < 0 || minf > 100) { | |
2525 jio_fprintf(defaultStream::error_stream(), | |
2526 "Bad min heap free percentage size: %s\n", | |
2527 option->optionString); | |
2528 return JNI_EINVAL; | |
2529 } else { | |
2530 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2531 } | |
2532 // -Xss | |
2533 } else if (match_option(option, "-Xss", &tail)) { | |
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2534 julong long_ThreadStackSize = 0; |
0 | 2535 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2536 if (errcode != arg_in_range) { | |
2537 jio_fprintf(defaultStream::error_stream(), | |
2538 "Invalid thread stack size: %s\n", option->optionString); | |
2539 describe_range_error(errcode); | |
2540 return JNI_EINVAL; | |
2541 } | |
2542 // Internally track ThreadStackSize in units of 1024 bytes. | |
2543 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2544 round_to((int)long_ThreadStackSize, K) / K); | |
2545 // -Xoss | |
2546 } else if (match_option(option, "-Xoss", &tail)) { | |
2547 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
2548 // -Xmaxjitcodesize | |
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2549 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
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2550 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
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2551 julong long_ReservedCodeCacheSize = 0; |
0 | 2552 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
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2553 (size_t)InitialCodeCacheSize); |
0 | 2554 if (errcode != arg_in_range) { |
2555 jio_fprintf(defaultStream::error_stream(), | |
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2556 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
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2557 option->optionString, InitialCodeCacheSize/K); |
0 | 2558 describe_range_error(errcode); |
2559 return JNI_EINVAL; | |
2560 } | |
2561 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
2562 // -green | |
2563 } else if (match_option(option, "-green", &tail)) { | |
2564 jio_fprintf(defaultStream::error_stream(), | |
2565 "Green threads support not available\n"); | |
2566 return JNI_EINVAL; | |
2567 // -native | |
2568 } else if (match_option(option, "-native", &tail)) { | |
2569 // HotSpot always uses native threads, ignore silently for compatibility | |
2570 // -Xsqnopause | |
2571 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2572 // EVM option, ignore silently for compatibility | |
2573 // -Xrs | |
2574 } else if (match_option(option, "-Xrs", &tail)) { | |
2575 // Classic/EVM option, new functionality | |
2576 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2577 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2578 // change default internal VM signals used - lower case for back compat | |
2579 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2580 // -Xoptimize | |
2581 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2582 // EVM option, ignore silently for compatibility | |
2583 // -Xprof | |
2584 } else if (match_option(option, "-Xprof", &tail)) { | |
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2585 #if INCLUDE_FPROF |
0 | 2586 _has_profile = true; |
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2587 #else // INCLUDE_FPROF |
0 | 2588 // do we have to exit? |
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2589 warning("Flat profiling is not supported in this VM."); |
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2590 #endif // INCLUDE_FPROF |
0 | 2591 // -Xaprof |
2592 } else if (match_option(option, "-Xaprof", &tail)) { | |
2593 _has_alloc_profile = true; | |
2594 // -Xconcurrentio | |
2595 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2596 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2597 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2598 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2599 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2600 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2601 | |
2602 // -Xinternalversion | |
2603 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2604 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2605 VM_Version::internal_vm_info_string()); | |
2606 vm_exit(0); | |
2607 #ifndef PRODUCT | |
2608 // -Xprintflags | |
2609 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2610 CommandLineFlags::printFlags(tty, false); |
0 | 2611 vm_exit(0); |
2612 #endif | |
2613 // -D | |
2614 } else if (match_option(option, "-D", &tail)) { | |
2615 if (!add_property(tail)) { | |
2616 return JNI_ENOMEM; | |
2617 } | |
2618 // Out of the box management support | |
2619 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
2620 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
2621 } | |
2622 // -Xint | |
2623 } else if (match_option(option, "-Xint", &tail)) { | |
2624 set_mode_flags(_int); | |
2625 // -Xmixed | |
2626 } else if (match_option(option, "-Xmixed", &tail)) { | |
2627 set_mode_flags(_mixed); | |
2628 // -Xcomp | |
2629 } else if (match_option(option, "-Xcomp", &tail)) { | |
2630 // for testing the compiler; turn off all flags that inhibit compilation | |
2631 set_mode_flags(_comp); | |
2632 | |
2633 // -Xshare:dump | |
2634 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
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2635 #if defined(KERNEL) |
0 | 2636 vm_exit_during_initialization( |
2637 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
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2638 #elif !INCLUDE_CDS |
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2639 vm_exit_during_initialization( |
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2640 "Dumping a shared archive is not supported in this VM.", NULL); |
0 | 2641 #else |
2642 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2643 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2644 #endif | |
2645 // -Xshare:on | |
2646 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2647 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2648 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2649 // -Xshare:auto | |
2650 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2651 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2652 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2653 // -Xshare:off | |
2654 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2655 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2656 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2657 | |
2658 // -Xverify | |
2659 } else if (match_option(option, "-Xverify", &tail)) { | |
2660 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2661 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2662 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2663 } else if (strcmp(tail, ":remote") == 0) { | |
2664 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2665 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2666 } else if (strcmp(tail, ":none") == 0) { | |
2667 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2668 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2669 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2670 return JNI_EINVAL; | |
2671 } | |
2672 // -Xdebug | |
2673 } else if (match_option(option, "-Xdebug", &tail)) { | |
2674 // note this flag has been used, then ignore | |
2675 set_xdebug_mode(true); | |
2676 // -Xnoagent | |
2677 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2678 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2679 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2680 // Bind user level threads to kernel threads (Solaris only) | |
2681 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2682 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2683 // Redirect GC output to the file. -Xloggc:<filename> | |
2684 // ostream_init_log(), when called will use this filename | |
2685 // to initialize a fileStream. | |
2686 _gc_log_filename = strdup(tail); | |
2687 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2688 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2689 | |
2690 // JNI hooks | |
2691 } else if (match_option(option, "-Xcheck", &tail)) { | |
2692 if (!strcmp(tail, ":jni")) { | |
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|
2693 #if !INCLUDE_JNI_CHECK |
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|
2694 warning("JNI CHECKING is not supported in this VM"); |
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|
2695 #else |
0 | 2696 CheckJNICalls = true; |
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|
2697 #endif // INCLUDE_JNI_CHECK |
0 | 2698 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2699 "check")) { | |
2700 return JNI_EINVAL; | |
2701 } | |
2702 } else if (match_option(option, "vfprintf", &tail)) { | |
2703 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2704 } else if (match_option(option, "exit", &tail)) { | |
2705 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2706 } else if (match_option(option, "abort", &tail)) { | |
2707 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2708 // -XX:+AggressiveHeap | |
2709 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2710 | |
2711 // This option inspects the machine and attempts to set various | |
2712 // parameters to be optimal for long-running, memory allocation | |
2713 // intensive jobs. It is intended for machines with large | |
2714 // amounts of cpu and memory. | |
2715 | |
2716 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2717 // VM, but we may not be able to represent the total physical memory | |
2718 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2719 // Thus, we need to make sure we're using a julong for intermediate | |
2720 // calculations. | |
2721 julong initHeapSize; | |
2722 julong total_memory = os::physical_memory(); | |
2723 | |
2724 if (total_memory < (julong)256*M) { | |
2725 jio_fprintf(defaultStream::error_stream(), | |
2726 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2727 vm_exit(1); | |
2728 } | |
2729 | |
2730 // The heap size is half of available memory, or (at most) | |
2731 // all of possible memory less 160mb (leaving room for the OS | |
2732 // when using ISM). This is the maximum; because adaptive sizing | |
2733 // is turned on below, the actual space used may be smaller. | |
2734 | |
2735 initHeapSize = MIN2(total_memory / (julong)2, | |
2736 total_memory - (julong)160*M); | |
2737 | |
2738 // Make sure that if we have a lot of memory we cap the 32 bit | |
2739 // process space. The 64bit VM version of this function is a nop. | |
2740 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
2741 | |
2742 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2743 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2744 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2745 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2746 set_min_heap_size(initHeapSize); |
0 | 2747 } |
2748 if (FLAG_IS_DEFAULT(NewSize)) { | |
2749 // Make the young generation 3/8ths of the total heap. | |
2750 FLAG_SET_CMDLINE(uintx, NewSize, | |
2751 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2752 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2753 } | |
2754 | |
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2755 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2756 FLAG_SET_DEFAULT(UseLargePages, true); |
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2757 #endif |
0 | 2758 |
2759 // Increase some data structure sizes for efficiency | |
2760 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2761 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2762 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2763 | |
2764 // See the OldPLABSize comment below, but replace 'after promotion' | |
2765 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2766 // space per-gc-thread buffers. The default is 4kw. | |
2767 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2768 | |
2769 // OldPLABSize is the size of the buffers in the old gen that | |
2770 // UseParallelGC uses to promote live data that doesn't fit in the | |
2771 // survivor spaces. At any given time, there's one for each gc thread. | |
2772 // The default size is 1kw. These buffers are rarely used, since the | |
2773 // survivor spaces are usually big enough. For specjbb, however, there | |
2774 // are occasions when there's lots of live data in the young gen | |
2775 // and we end up promoting some of it. We don't have a definite | |
2776 // explanation for why bumping OldPLABSize helps, but the theory | |
2777 // is that a bigger PLAB results in retaining something like the | |
2778 // original allocation order after promotion, which improves mutator | |
2779 // locality. A minor effect may be that larger PLABs reduce the | |
2780 // number of PLAB allocation events during gc. The value of 8kw | |
2781 // was arrived at by experimenting with specjbb. | |
2782 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2783 | |
2784 // Enable parallel GC and adaptive generation sizing | |
2785 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
10
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|
2786 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2787 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2788 |
2789 // Encourage steady state memory management | |
2790 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2791 | |
2792 // This appears to improve mutator locality | |
2793 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2794 | |
2795 // Get around early Solaris scheduling bug | |
2796 // (affinity vs other jobs on system) | |
2797 // but disallow DR and offlining (5008695). | |
2798 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2799 | |
2800 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2801 // The last option must always win. | |
2802 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2803 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2804 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2805 // The last option must always win. | |
2806 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2807 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2808 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2809 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2810 jio_fprintf(defaultStream::error_stream(), | |
2811 "Please use CMSClassUnloadingEnabled in place of " | |
2812 "CMSPermGenSweepingEnabled in the future\n"); | |
2813 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2814 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2815 jio_fprintf(defaultStream::error_stream(), | |
2816 "Please use -XX:+UseGCOverheadLimit in place of " | |
2817 "-XX:+UseGCTimeLimit in the future\n"); | |
2818 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2819 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2820 jio_fprintf(defaultStream::error_stream(), | |
2821 "Please use -XX:-UseGCOverheadLimit in place of " | |
2822 "-XX:-UseGCTimeLimit in the future\n"); | |
2823 // The TLE options are for compatibility with 1.3 and will be | |
2824 // removed without notice in a future release. These options | |
2825 // are not to be documented. | |
2826 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2827 // No longer used. | |
2828 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2829 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2830 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2831 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2832 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2833 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2834 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2835 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2836 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2837 // No longer used. | |
2838 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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diff
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|
2839 julong long_tlab_size = 0; |
0 | 2840 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2841 if (errcode != arg_in_range) { | |
2842 jio_fprintf(defaultStream::error_stream(), | |
2843 "Invalid TLAB size: %s\n", option->optionString); | |
2844 describe_range_error(errcode); | |
2845 return JNI_EINVAL; | |
2846 } | |
2847 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2848 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2849 // No longer used. | |
2850 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2851 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2852 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2853 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2854 SOLARIS_ONLY( | |
2855 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
2856 warning("-XX:+UsePermISM is obsolete."); | |
2857 FLAG_SET_CMDLINE(bool, UseISM, true); | |
2858 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
2859 FLAG_SET_CMDLINE(bool, UseISM, false); | |
2860 ) | |
2861 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2862 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2863 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2864 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2865 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2866 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2867 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2868 #if defined(DTRACE_ENABLED) |
0 | 2869 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2870 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2871 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2872 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2873 #else // defined(DTRACE_ENABLED) |
0 | 2874 jio_fprintf(defaultStream::error_stream(), |
4006 | 2875 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2876 return JNI_EINVAL; |
4006 | 2877 #endif // defined(DTRACE_ENABLED) |
0 | 2878 #ifdef ASSERT |
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|
2879 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2880 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2881 // disable scavenge before parallel mark-compact | |
2882 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2883 #endif | |
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|
2884 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 2885 julong cms_blocks_to_claim = (julong)atol(tail); |
2886 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
2887 jio_fprintf(defaultStream::error_stream(), | |
1145
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2888 "Please use -XX:OldPLABSize in place of " |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
2889 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
2890 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
2891 julong cms_blocks_to_claim = (julong)atol(tail); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
2892 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
2893 jio_fprintf(defaultStream::error_stream(), |
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6631166: CMS: better heuristics when combatting fragmentation
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|
2894 "Please use -XX:OldPLABSize in place of " |
0 | 2895 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
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6631166: CMS: better heuristics when combatting fragmentation
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|
2896 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
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2897 julong old_plab_size = 0; |
0 | 2898 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
2899 if (errcode != arg_in_range) { | |
2900 jio_fprintf(defaultStream::error_stream(), | |
2901 "Invalid old PLAB size: %s\n", option->optionString); | |
2902 describe_range_error(errcode); | |
2903 return JNI_EINVAL; | |
2904 } | |
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
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|
2905 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 2906 jio_fprintf(defaultStream::error_stream(), |
2907 "Please use -XX:OldPLABSize in place of " | |
2908 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
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|
2909 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
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2910 julong young_plab_size = 0; |
0 | 2911 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
2912 if (errcode != arg_in_range) { | |
2913 jio_fprintf(defaultStream::error_stream(), | |
2914 "Invalid young PLAB size: %s\n", option->optionString); | |
2915 describe_range_error(errcode); | |
2916 return JNI_EINVAL; | |
2917 } | |
489
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|
2918 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 2919 jio_fprintf(defaultStream::error_stream(), |
2920 "Please use -XX:YoungPLABSize in place of " | |
2921 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 2922 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
2923 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
2924 julong stack_size = 0; | |
2925 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
2926 if (errcode != arg_in_range) { | |
2927 jio_fprintf(defaultStream::error_stream(), | |
2928 "Invalid mark stack size: %s\n", option->optionString); | |
2929 describe_range_error(errcode); | |
2930 return JNI_EINVAL; | |
2931 } | |
2932 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
2933 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
2934 julong max_stack_size = 0; | |
2935 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
2936 if (errcode != arg_in_range) { | |
2937 jio_fprintf(defaultStream::error_stream(), | |
2938 "Invalid maximum mark stack size: %s\n", | |
2939 option->optionString); | |
2940 describe_range_error(errcode); | |
2941 return JNI_EINVAL; | |
2942 } | |
2943 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
2944 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
2945 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
2946 uintx conc_threads = 0; | |
2947 if (!parse_uintx(tail, &conc_threads, 1)) { | |
2948 jio_fprintf(defaultStream::error_stream(), | |
2949 "Invalid concurrent threads: %s\n", option->optionString); | |
2950 return JNI_EINVAL; | |
2951 } | |
2952 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
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2953 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
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|
2954 julong max_direct_memory_size = 0; |
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7179383: MaxDirectMemorySize argument parsing is broken for values >2G
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6198
diff
changeset
|
2955 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
3f1ab0c19c30
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|
2956 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
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|
2957 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
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|
2958 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
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|
2959 option->optionString); |
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diff
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|
2960 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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diff
changeset
|
2961 return JNI_EINVAL; |
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diff
changeset
|
2962 } |
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diff
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|
2963 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
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6857
diff
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|
2964 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
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|
2965 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
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changeset
|
2966 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
2967 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
|
2968 FLAG_SET_CMDLINE(bool, UseVMInterruptibleIO, true); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2969 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 2970 // Skip -XX:Flags= since that case has already been handled |
2971 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
2972 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
2973 return JNI_EINVAL; | |
2974 } | |
2975 } | |
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
|
2976 } |
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
|
2977 #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
|
2978 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
|
2979 // 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
|
2980 if (PrintVMOptions) { |
7125
1baf7f1e3f23
decoupled C++ Graal runtime from C1
Doug Simon <doug.simon@oracle.com>
parents:
7066
diff
changeset
|
2981 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
|
2982 } |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2983 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
|
2984 |
0 | 2985 // 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
|
2986 } |
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
|
2987 #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
|
2988 else if (is_bad_option(option, args->ignoreUnrecognized)) { |
0 | 2989 return JNI_ERR; |
2990 } | |
2991 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2992 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2993 // 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
|
2994 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2995 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2996 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2997 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2998 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2999 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3000 #endif // LINUX |
0 | 3001 return JNI_OK; |
3002 } | |
3003 | |
3004 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3005 // This must be done after all -D arguments have been processed. | |
3006 scp_p->expand_endorsed(); | |
3007 | |
3008 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3009 // Assemble the bootclasspath elements into the final path. | |
3010 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3011 } | |
3012 | |
3013 // This must be done after all arguments have been processed. | |
3014 // java_compiler() true means set to "NONE" or empty. | |
3015 if (java_compiler() && !xdebug_mode()) { | |
3016 // For backwards compatibility, we switch to interpreted mode if | |
3017 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3018 // not specified. | |
3019 set_mode_flags(_int); | |
3020 } | |
3021 if (CompileThreshold == 0) { | |
3022 set_mode_flags(_int); | |
3023 } | |
3024 | |
3025 #ifndef COMPILER2 | |
3026 // Don't degrade server performance for footprint | |
3027 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3028 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3029 // No need for large granularity pages w/small heaps. | |
3030 // Note that large pages are enabled/disabled for both the | |
3031 // Java heap and the code cache. | |
3032 FLAG_SET_DEFAULT(UseLargePages, false); | |
3033 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
3034 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
3035 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3036 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3037 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
3038 TieredCompilation = false; |
0 | 3039 #else |
3040 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3041 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3042 } | |
3043 #endif | |
3044 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3045 // 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
|
3046 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3047 // Also allow the OS environment variable JAVA_AWT_HEADLESS to set headless state. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3048 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3049 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3050 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3051 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3052 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3053 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3054 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3055 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3056 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3057 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3058 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3059 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3060 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3061 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3062 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3063 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3064 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3065 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3066 |
0 | 3067 if (!check_vm_args_consistency()) { |
3068 return JNI_ERR; | |
3069 } | |
3070 | |
3071 return JNI_OK; | |
3072 } | |
3073 | |
3074 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3075 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3076 scp_assembly_required_p); | |
3077 } | |
3078 | |
3079 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3080 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3081 scp_assembly_required_p); | |
3082 } | |
3083 | |
3084 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3085 const int N_MAX_OPTIONS = 64; | |
3086 const int OPTION_BUFFER_SIZE = 1024; | |
3087 char buffer[OPTION_BUFFER_SIZE]; | |
3088 | |
3089 // The variable will be ignored if it exceeds the length of the buffer. | |
3090 // Don't check this variable if user has special privileges | |
3091 // (e.g. unix su command). | |
3092 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3093 !os::have_special_privileges()) { | |
3094 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3095 jio_fprintf(defaultStream::error_stream(), | |
3096 "Picked up %s: %s\n", name, buffer); | |
3097 char* rd = buffer; // pointer to the input string (rd) | |
3098 int i; | |
3099 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3100 while (isspace(*rd)) rd++; // skip whitespace | |
3101 if (*rd == 0) break; // we re done when the input string is read completely | |
3102 | |
3103 // The output, option string, overwrites the input string. | |
3104 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3105 // input string (rd). | |
3106 char* wrt = rd; | |
3107 | |
3108 options[i++].optionString = wrt; // Fill in option | |
3109 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3110 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3111 int quote = *rd; // matching quote to look for | |
3112 rd++; // don't copy open quote | |
3113 while (*rd != quote) { // include everything (even spaces) up until quote | |
3114 if (*rd == 0) { // string termination means unmatched string | |
3115 jio_fprintf(defaultStream::error_stream(), | |
3116 "Unmatched quote in %s\n", name); | |
3117 return JNI_ERR; | |
3118 } | |
3119 *wrt++ = *rd++; // copy to option string | |
3120 } | |
3121 rd++; // don't copy close quote | |
3122 } else { | |
3123 *wrt++ = *rd++; // copy to option string | |
3124 } | |
3125 } | |
3126 // Need to check if we're done before writing a NULL, | |
3127 // because the write could be to the byte that rd is pointing to. | |
3128 if (*rd++ == 0) { | |
3129 *wrt = 0; | |
3130 break; | |
3131 } | |
3132 *wrt = 0; // Zero terminate option | |
3133 } | |
3134 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3135 JavaVMInitArgs vm_args; | |
3136 vm_args.version = JNI_VERSION_1_2; | |
3137 vm_args.options = options; | |
3138 vm_args.nOptions = i; | |
564 | 3139 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3140 |
3141 if (PrintVMOptions) { | |
3142 const char* tail; | |
3143 for (int i = 0; i < vm_args.nOptions; i++) { | |
3144 const JavaVMOption *option = vm_args.options + i; | |
3145 if (match_option(option, "-XX:", &tail)) { | |
3146 logOption(tail); | |
3147 } | |
3148 } | |
3149 } | |
3150 | |
3151 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3152 } | |
3153 return JNI_OK; | |
3154 } | |
3155 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3156 void Arguments::set_shared_spaces_flags() { |
2378 | 3157 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
3158 const bool might_share = must_share || UseSharedSpaces; | |
3159 | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3160 // CompressedOops cannot be used with CDS. The offsets of oopmaps and |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3161 // static fields are incorrect in the archive. With some more clever |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3162 // initialization, this restriction can probably be lifted. |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3163 // ??? UseLargePages might be okay now |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3164 const bool cannot_share = UseCompressedOops || |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3165 (UseLargePages && FLAG_IS_CMDLINE(UseLargePages)); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3166 if (cannot_share) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3167 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
|
3168 warning("disabling large pages %s" |
2378 | 3169 "because of %s", "" LP64_ONLY("and compressed oops "), |
3170 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
3171 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
3172 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
|
3173 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedKlassPointers, false)); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3174 } else { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3175 // 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
|
3176 if (UseSharedSpaces && Verbose) { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3177 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
|
3178 "" LP64_ONLY(" and/or compressed oops")); |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3179 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3180 no_shared_spaces(); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3181 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3182 } else if (UseLargePages && might_share) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3183 // 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
|
3184 // there may not even be a shared archive to use. |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3185 FLAG_SET_DEFAULT(UseLargePages, false); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3186 } |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3187 |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3188 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3189 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3190 warning("cannot dump shared archive while using shared archive"); |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3191 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3192 UseSharedSpaces = false; |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3193 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3194 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3195 |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3196 // 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
|
3197 // were explicitly requested on the command-line |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3198 #define UNSUPPORTED_OPTION(opt, description) \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3199 do { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3200 if (opt) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3201 if (FLAG_IS_CMDLINE(opt)) { \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3202 warning(description " is disabled in this release."); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3203 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3204 FLAG_SET_DEFAULT(opt, false); \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3205 } \ |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3206 } while(0) |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3207 |
0 | 3208 // Parse entry point called from JNI_CreateJavaVM |
3209 | |
3210 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3211 | |
3212 // Sharing support | |
3213 // Construct the path to the archive | |
3214 char jvm_path[JVM_MAXPATHLEN]; | |
3215 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
3216 char *end = strrchr(jvm_path, *os::file_separator()); | |
3217 if (end != NULL) *end = '\0'; | |
3218 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
6197 | 3219 strlen(os::file_separator()) + 20, mtInternal); |
0 | 3220 if (shared_archive_path == NULL) return JNI_ENOMEM; |
3221 strcpy(shared_archive_path, jvm_path); | |
3222 strcat(shared_archive_path, os::file_separator()); | |
3223 strcat(shared_archive_path, "classes"); | |
3224 strcat(shared_archive_path, ".jsa"); | |
3225 SharedArchivePath = shared_archive_path; | |
3226 | |
3227 // Remaining part of option string | |
3228 const char* tail; | |
3229 | |
3230 // 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
|
3231 const char* hotspotrc = ".hotspotrc"; |
0 | 3232 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
|
3233 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
|
3234 |
564 | 3235 const char* flags_file; |
0 | 3236 int index; |
3237 for (index = 0; index < args->nOptions; index++) { | |
3238 const JavaVMOption *option = args->options + index; | |
3239 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3240 flags_file = tail; |
0 | 3241 settings_file_specified = true; |
3242 } | |
3243 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3244 PrintVMOptions = true; | |
3245 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3246 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
|
3247 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3248 } |
564 | 3249 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3250 IgnoreUnrecognizedVMOptions = true; | |
3251 } | |
3252 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3253 IgnoreUnrecognizedVMOptions = false; | |
3254 } | |
1150 | 3255 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3256 CommandLineFlags::printFlags(tty, false); |
1150 | 3257 vm_exit(0); |
3258 } | |
6197 | 3259 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3260 #if INCLUDE_NMT |
6197 | 3261 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3262 #else |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3263 warning("Native Memory Tracking is not supported in this VM"); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3264 #endif |
6197 | 3265 } |
3266 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3267 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3268 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3269 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3270 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3271 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3272 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3273 #endif |
564 | 3274 } |
3275 | |
3276 if (IgnoreUnrecognizedVMOptions) { | |
3277 // uncast const to modify the flag args->ignoreUnrecognized | |
3278 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3279 } | |
3280 | |
3281 // Parse specified settings file | |
3282 if (settings_file_specified) { | |
3283 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3284 return JNI_EINVAL; | |
3285 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3286 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3287 #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
|
3288 // Parse default .hotspotrc settings file |
0 | 3289 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3290 return JNI_EINVAL; | |
3291 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3292 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3293 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
|
3294 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
|
3295 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
|
3296 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3297 #endif |
0 | 3298 } |
3299 | |
3300 if (PrintVMOptions) { | |
3301 for (index = 0; index < args->nOptions; index++) { | |
3302 const JavaVMOption *option = args->options + index; | |
3303 if (match_option(option, "-XX:", &tail)) { | |
3304 logOption(tail); | |
3305 } | |
3306 } | |
3307 } | |
3308 | |
3309 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3310 jint result = parse_vm_init_args(args); | |
3311 if (result != JNI_OK) { | |
3312 return result; | |
3313 } | |
3314 | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3315 // 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
|
3316 // 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
|
3317 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
|
3318 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
|
3319 "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
|
3320 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3321 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3322 |
6055
35e504cb49a6
7167625: Adjustments for SE-Embedded build process
collins
parents:
6017
diff
changeset
|
3323 #if (defined JAVASE_EMBEDDED || defined ARM) |
3797
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3324 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3325 #endif |
eb94b7226b7a
7061192: option handling adjustments for oracle and embedded builds
jcoomes
parents:
3769
diff
changeset
|
3326 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3327 #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
|
3328 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3329 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3330 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3331 #if !INCLUDE_ALTERNATE_GCS |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3332 if (UseParallelGC) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3333 warning("Parallel GC is not supported in this VM. Using Serial GC."); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3334 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3335 if (UseParallelOldGC) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3336 warning("Parallel Old GC is not supported in this VM. Using Serial GC."); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3337 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3338 if (UseConcMarkSweepGC) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3339 warning("Concurrent Mark Sweep GC is not supported in this VM. Using Serial GC."); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3340 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3341 if (UseParNewGC) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3342 warning("Par New GC is not supported in this VM. Using Serial GC."); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3343 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3344 #endif // INCLUDE_ALTERNATE_GCS |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3345 |
0 | 3346 #ifndef PRODUCT |
3347 if (TraceBytecodesAt != 0) { | |
3348 TraceBytecodes = true; | |
3349 } | |
3350 if (CountCompiledCalls) { | |
3351 if (UseCounterDecay) { | |
3352 warning("UseCounterDecay disabled because CountCalls is set"); | |
3353 UseCounterDecay = false; | |
3354 } | |
3355 } | |
3356 #endif // PRODUCT | |
3357 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3358 // 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
|
3359 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3360 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3361 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3362 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
|
3363 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3364 EnableInvokeDynamic = false; |
710 | 3365 } |
3366 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3367 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3368 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3369 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3370 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
|
3371 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3372 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3373 } |
710 | 3374 |
0 | 3375 if (PrintGCDetails) { |
3376 // Turn on -verbose:gc options as well | |
3377 PrintGC = true; | |
3378 } | |
3379 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3380 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3381 // 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
|
3382 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3383 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3384 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3385 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3386 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3387 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3388 // 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
|
3389 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
|
3390 |
0 | 3391 #ifdef SERIALGC |
1064 | 3392 force_serial_gc(); |
0 | 3393 #endif // SERIALGC |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3394 #if !INCLUDE_CDS |
0 | 3395 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3396 #endif // INCLUDE_CDS |
0 | 3397 |
3398 // Set flags based on ergonomics. | |
3399 set_ergonomics_flags(); | |
3400 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3401 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3402 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3403 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3404 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3405 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3406 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3407 |
1783 | 3408 if (TieredCompilation) { |
3409 set_tiered_flags(); | |
3410 } else { | |
3411 // 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
|
3412 if (CompilationPolicyChoice >= 2 && CompilationPolicyChoice < 4) { |
1783 | 3413 vm_exit_during_initialization( |
3414 "Incompatible compilation policy selected", NULL); | |
3415 } | |
3416 } | |
3417 | |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3418 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3419 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3420 |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3421 #if INCLUDE_ALTERNATE_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3422 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3423 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3424 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3425 } 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
|
3426 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3427 } 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
|
3428 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3429 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3430 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3431 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3432 check_deprecated_gcs(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3433 #endif // INCLUDE_ALTERNATE_GCS |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3434 |
0 | 3435 #ifdef SERIALGC |
3436 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
3437 #endif // SERIALGC | |
3438 | |
3439 // Set bytecode rewriting flags | |
3440 set_bytecode_flags(); | |
3441 | |
3442 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3443 set_aggressive_opts_flags(); | |
3444 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3445 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3446 // 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
|
3447 // biased locking. |
2331 | 3448 if (UseHeavyMonitors |
3449 #ifdef COMPILER1 | |
3450 || !UseFastLocking | |
3451 #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
|
3452 #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
|
3453 || !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
|
3454 #endif // GRAAL |
2331 | 3455 ) { |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3456 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3457 // 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
|
3458 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3459 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3460 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3461 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3462 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3463 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3464 |
0 | 3465 #ifdef CC_INTERP |
1131 | 3466 // Clear flags not supported by the C++ interpreter |
3467 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3468 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3469 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3470 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedKlassPointers, false)); |
1131 | 3471 #endif // CC_INTERP |
3472 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3473 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3474 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3475 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3476 } |
4777 | 3477 if (!EliminateLocks) { |
3478 EliminateNestedLocks = false; | |
3479 } | |
7473 | 3480 if (!Inline) { |
3481 IncrementalInline = false; | |
3482 } | |
3483 #ifndef PRODUCT | |
3484 if (!IncrementalInline) { | |
3485 AlwaysIncrementalInline = false; | |
3486 } | |
3487 #endif | |
3488 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3489 // incremental inlining: bump MaxNodeLimit | |
3490 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3491 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3492 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3493 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3494 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3495 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
|
3496 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3497 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3498 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3499 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3500 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3501 // 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
|
3502 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3503 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3504 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3505 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3506 #endif |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3507 |
0 | 3508 if (PrintCommandLineFlags) { |
4773 | 3509 CommandLineFlags::printSetFlags(tty); |
0 | 3510 } |
3511 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3512 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3513 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3514 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3515 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3516 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3517 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3518 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3519 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3520 // 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
|
3521 // 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
|
3522 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
|
3523 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3524 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3525 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3526 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3527 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3528 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3529 |
0 | 3530 return JNI_OK; |
3531 } | |
3532 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3533 jint Arguments::adjust_after_os() { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3534 #if INCLUDE_ALTERNATE_GCS |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3535 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3536 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3537 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3538 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3539 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3540 // 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
|
3541 // 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
|
3542 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3543 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3544 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3545 #endif |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3546 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3547 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3548 |
0 | 3549 int Arguments::PropertyList_count(SystemProperty* pl) { |
3550 int count = 0; | |
3551 while(pl != NULL) { | |
3552 count++; | |
3553 pl = pl->next(); | |
3554 } | |
3555 return count; | |
3556 } | |
3557 | |
3558 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3559 assert(key != NULL, "just checking"); | |
3560 SystemProperty* prop; | |
3561 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3562 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3563 } | |
3564 return NULL; | |
3565 } | |
3566 | |
3567 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3568 int count = 0; | |
3569 const char* ret_val = NULL; | |
3570 | |
3571 while(pl != NULL) { | |
3572 if(count >= index) { | |
3573 ret_val = pl->key(); | |
3574 break; | |
3575 } | |
3576 count++; | |
3577 pl = pl->next(); | |
3578 } | |
3579 | |
3580 return ret_val; | |
3581 } | |
3582 | |
3583 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3584 int count = 0; | |
3585 char* ret_val = NULL; | |
3586 | |
3587 while(pl != NULL) { | |
3588 if(count >= index) { | |
3589 ret_val = pl->value(); | |
3590 break; | |
3591 } | |
3592 count++; | |
3593 pl = pl->next(); | |
3594 } | |
3595 | |
3596 return ret_val; | |
3597 } | |
3598 | |
3599 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3600 SystemProperty* p = *plist; | |
3601 if (p == NULL) { | |
3602 *plist = new_p; | |
3603 } else { | |
3604 while (p->next() != NULL) { | |
3605 p = p->next(); | |
3606 } | |
3607 p->set_next(new_p); | |
3608 } | |
3609 } | |
3610 | |
3611 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3612 if (plist == NULL) | |
3613 return; | |
3614 | |
3615 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3616 PropertyList_add(plist, new_p); | |
3617 } | |
3618 | |
3619 // This add maintains unique property key in the list. | |
691 | 3620 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3621 if (plist == NULL) |
3622 return; | |
3623 | |
3624 // If property key exist then update with new value. | |
3625 SystemProperty* prop; | |
3626 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3627 if (strcmp(k, prop->key()) == 0) { | |
691 | 3628 if (append) { |
3629 prop->append_value(v); | |
3630 } else { | |
3631 prop->set_value(v); | |
3632 } | |
0 | 3633 return; |
3634 } | |
3635 } | |
3636 | |
3637 PropertyList_add(plist, k, v); | |
3638 } | |
3639 | |
3640 #ifdef KERNEL | |
3641 char *Arguments::get_kernel_properties() { | |
3642 // Find properties starting with kernel and append them to string | |
3643 // We need to find out how long they are first because the URL's that they | |
3644 // might point to could get long. | |
3645 int length = 0; | |
3646 SystemProperty* prop; | |
3647 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
3648 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
3649 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
3650 } | |
3651 } | |
3652 // Add one for null terminator. | |
6197 | 3653 char *props = AllocateHeap(length + 1, mtInternal); |
0 | 3654 if (length != 0) { |
3655 int pos = 0; | |
3656 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
3657 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
3658 jio_snprintf(&props[pos], length-pos, | |
3659 "-D%s=%s ", prop->key(), prop->value()); | |
3660 pos = strlen(props); | |
3661 } | |
3662 } | |
3663 } | |
3664 // null terminate props in case of null | |
3665 props[length] = '\0'; | |
3666 return props; | |
3667 } | |
3668 #endif // KERNEL | |
3669 | |
3670 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3671 // Returns true if all of the source pointed by src has been copied over to | |
3672 // the destination buffer pointed by buf. Otherwise, returns false. | |
3673 // Notes: | |
3674 // 1. If the length (buflen) of the destination buffer excluding the | |
3675 // NULL terminator character is not long enough for holding the expanded | |
3676 // pid characters, it also returns false instead of returning the partially | |
3677 // expanded one. | |
3678 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3679 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3680 char* buf, size_t buflen) { | |
3681 const char* p = src; | |
3682 char* b = buf; | |
3683 const char* src_end = &src[srclen]; | |
3684 char* buf_end = &buf[buflen - 1]; | |
3685 | |
3686 while (p < src_end && b < buf_end) { | |
3687 if (*p == '%') { | |
3688 switch (*(++p)) { | |
3689 case '%': // "%%" ==> "%" | |
3690 *b++ = *p++; | |
3691 break; | |
3692 case 'p': { // "%p" ==> current process id | |
3693 // buf_end points to the character before the last character so | |
3694 // that we could write '\0' to the end of the buffer. | |
3695 size_t buf_sz = buf_end - b + 1; | |
3696 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3697 | |
3698 // if jio_snprintf fails or the buffer is not long enough to hold | |
3699 // the expanded pid, returns false. | |
3700 if (ret < 0 || ret >= (int)buf_sz) { | |
3701 return false; | |
3702 } else { | |
3703 b += ret; | |
3704 assert(*b == '\0', "fail in copy_expand_pid"); | |
3705 if (p == src_end && b == buf_end + 1) { | |
3706 // reach the end of the buffer. | |
3707 return true; | |
3708 } | |
3709 } | |
3710 p++; | |
3711 break; | |
3712 } | |
3713 default : | |
3714 *b++ = '%'; | |
3715 } | |
3716 } else { | |
3717 *b++ = *p++; | |
3718 } | |
3719 } | |
3720 *b = '\0'; | |
3721 return (p == src_end); // return false if not all of the source was copied | |
3722 } |