Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 12888:4a2acfb16e97
8025657: compiler/intrinsics/mathexact/ConstantTest.java fails on assert in lcm.cpp on solaris x64
Reviewed-by: kvn, twisti
author | rbackman |
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date | Fri, 11 Oct 2013 12:06:14 +0200 |
parents | aa6f2ea19d8f |
children | 027006a47a6d |
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" | |
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31 #include "memory/genCollectedHeap.hpp" |
1972 | 32 #include "memory/referenceProcessor.hpp" |
33 #include "memory/universe.inline.hpp" | |
34 #include "oops/oop.inline.hpp" | |
35 #include "prims/jvmtiExport.hpp" | |
36 #include "runtime/arguments.hpp" | |
37 #include "runtime/globals_extension.hpp" | |
38 #include "runtime/java.hpp" | |
39 #include "services/management.hpp" | |
6197 | 40 #include "services/memTracker.hpp" |
1972 | 41 #include "utilities/defaultStream.hpp" |
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42 #include "utilities/macros.hpp" |
1972 | 43 #include "utilities/taskqueue.hpp" |
44 #ifdef TARGET_OS_FAMILY_linux | |
45 # include "os_linux.inline.hpp" | |
46 #endif | |
47 #ifdef TARGET_OS_FAMILY_solaris | |
48 # include "os_solaris.inline.hpp" | |
49 #endif | |
50 #ifdef TARGET_OS_FAMILY_windows | |
51 # include "os_windows.inline.hpp" | |
52 #endif | |
3960 | 53 #ifdef TARGET_OS_FAMILY_bsd |
54 # include "os_bsd.inline.hpp" | |
55 #endif | |
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56 #if INCLUDE_ALL_GCS |
1972 | 57 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
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58 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
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59 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" |
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60 #endif // INCLUDE_ALL_GCS |
0 | 61 |
2474 | 62 // Note: This is a special bug reporting site for the JVM |
63 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 64 #define DEFAULT_JAVA_LAUNCHER "generic" |
65 | |
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66 // Disable options not supported in this release, with a warning if they |
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67 // were explicitly requested on the command-line |
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68 #define UNSUPPORTED_OPTION(opt, description) \ |
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69 do { \ |
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70 if (opt) { \ |
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71 if (FLAG_IS_CMDLINE(opt)) { \ |
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72 warning(description " is disabled in this release."); \ |
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73 } \ |
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74 FLAG_SET_DEFAULT(opt, false); \ |
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75 } \ |
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76 } while(0) |
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77 |
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78 #define UNSUPPORTED_GC_OPTION(gc) \ |
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79 do { \ |
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80 if (gc) { \ |
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81 if (FLAG_IS_CMDLINE(gc)) { \ |
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82 warning(#gc " is not supported in this VM. Using Serial GC."); \ |
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83 } \ |
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84 FLAG_SET_DEFAULT(gc, false); \ |
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85 } \ |
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86 } while(0) |
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87 |
0 | 88 char** Arguments::_jvm_flags_array = NULL; |
89 int Arguments::_num_jvm_flags = 0; | |
90 char** Arguments::_jvm_args_array = NULL; | |
91 int Arguments::_num_jvm_args = 0; | |
92 char* Arguments::_java_command = NULL; | |
93 SystemProperty* Arguments::_system_properties = NULL; | |
94 const char* Arguments::_gc_log_filename = NULL; | |
95 bool Arguments::_has_profile = false; | |
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96 size_t Arguments::_conservative_max_heap_alignment = 0; |
0 | 97 uintx Arguments::_min_heap_size = 0; |
98 Arguments::Mode Arguments::_mode = _mixed; | |
99 bool Arguments::_java_compiler = false; | |
100 bool Arguments::_xdebug_mode = false; | |
101 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
102 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
103 int Arguments::_sun_java_launcher_pid = -1; | |
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104 bool Arguments::_created_by_gamma_launcher = false; |
0 | 105 |
106 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
107 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
108 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
109 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
110 bool Arguments::_ClipInlining = ClipInlining; | |
111 | |
112 char* Arguments::SharedArchivePath = NULL; | |
113 | |
114 AgentLibraryList Arguments::_libraryList; | |
115 AgentLibraryList Arguments::_agentList; | |
116 | |
117 abort_hook_t Arguments::_abort_hook = NULL; | |
118 exit_hook_t Arguments::_exit_hook = NULL; | |
119 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
120 | |
121 | |
122 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
123 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
124 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
125 SystemProperty *Arguments::_java_library_path = NULL; | |
126 SystemProperty *Arguments::_java_home = NULL; | |
127 SystemProperty *Arguments::_java_class_path = NULL; | |
128 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
129 | |
130 char* Arguments::_meta_index_path = NULL; | |
131 char* Arguments::_meta_index_dir = NULL; | |
132 | |
133 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
134 | |
135 static bool match_option(const JavaVMOption *option, const char* name, | |
136 const char** tail) { | |
137 int len = (int)strlen(name); | |
138 if (strncmp(option->optionString, name, len) == 0) { | |
139 *tail = option->optionString + len; | |
140 return true; | |
141 } else { | |
142 return false; | |
143 } | |
144 } | |
145 | |
146 static void logOption(const char* opt) { | |
147 if (PrintVMOptions) { | |
148 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
149 } | |
150 } | |
151 | |
152 // Process java launcher properties. | |
153 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
154 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
155 // Must do this before setting up other system properties, | |
156 // as some of them may depend on launcher type. | |
157 for (int index = 0; index < args->nOptions; index++) { | |
158 const JavaVMOption* option = args->options + index; | |
159 const char* tail; | |
160 | |
161 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
162 process_java_launcher_argument(tail, option->extraInfo); | |
163 continue; | |
164 } | |
165 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
166 _sun_java_launcher_pid = atoi(tail); | |
167 continue; | |
168 } | |
169 } | |
170 } | |
171 | |
172 // Initialize system properties key and value. | |
173 void Arguments::init_system_properties() { | |
174 | |
175 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
176 "Java Virtual Machine Specification", false)); | |
177 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
178 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
179 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
180 | |
181 // following are JVMTI agent writeable properties. | |
182 // Properties values are set to NULL and they are | |
183 // os specific they are initialized in os::init_system_properties_values(). | |
184 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
185 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
186 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
187 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
188 _java_home = new SystemProperty("java.home", NULL, true); | |
189 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
190 | |
191 _java_class_path = new SystemProperty("java.class.path", "", true); | |
192 | |
193 // Add to System Property list. | |
194 PropertyList_add(&_system_properties, _java_ext_dirs); | |
195 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
196 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
197 PropertyList_add(&_system_properties, _java_library_path); | |
198 PropertyList_add(&_system_properties, _java_home); | |
199 PropertyList_add(&_system_properties, _java_class_path); | |
200 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
201 | |
202 // Set OS specific system properties values | |
203 os::init_system_properties_values(); | |
204 } | |
205 | |
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206 |
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207 // Update/Initialize System properties after JDK version number is known |
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208 void Arguments::init_version_specific_system_properties() { |
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209 enum { bufsz = 16 }; |
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210 char buffer[bufsz]; |
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211 const char* spec_vendor = "Sun Microsystems Inc."; |
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212 uint32_t spec_version = 0; |
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213 |
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214 if (JDK_Version::is_gte_jdk17x_version()) { |
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215 spec_vendor = "Oracle Corporation"; |
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216 spec_version = JDK_Version::current().major_version(); |
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217 } |
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218 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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219 |
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220 PropertyList_add(&_system_properties, |
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221 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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222 PropertyList_add(&_system_properties, |
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223 new SystemProperty("java.vm.specification.version", buffer, false)); |
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224 PropertyList_add(&_system_properties, |
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225 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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226 } |
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227 |
242 | 228 /** |
229 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
230 * When a flag is eliminated, it can be added to this list in order to | |
231 * continue accepting this flag on the command-line, while issuing a warning | |
232 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
233 * limit, we flatly refuse to admit the existence of the flag. This allows | |
234 * a flag to die correctly over JDK releases using HSX. | |
235 */ | |
236 typedef struct { | |
237 const char* name; | |
238 JDK_Version obsoleted_in; // when the flag went away | |
239 JDK_Version accept_until; // which version to start denying the existence | |
240 } ObsoleteFlag; | |
0 | 241 |
242 | 242 static ObsoleteFlag obsolete_jvm_flags[] = { |
243 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
244 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
245 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
246 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
247 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
248 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
249 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
250 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
251 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
252 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
253 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
254 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
255 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
256 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 257 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
258 { "DefaultInitialRAMFraction", | |
259 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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260 { "UseDepthFirstScavengeOrder", |
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261 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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262 { "HandlePromotionFailure", |
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263 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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264 { "MaxLiveObjectEvacuationRatio", |
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265 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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266 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
3251
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267 { "UseParallelOldGCCompacting", |
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268 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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269 { "UseParallelDensePrefixUpdate", |
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270 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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271 { "UseParallelOldGCDensePrefix", |
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272 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 273 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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274 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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275 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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276 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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277 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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278 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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279 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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280 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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281 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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282 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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283 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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284 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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285 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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286 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 287 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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288 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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289 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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290 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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291 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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292 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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293 #ifdef PRODUCT |
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294 { "DesiredMethodLimit", |
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295 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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296 #endif // PRODUCT |
242 | 297 { NULL, JDK_Version(0), JDK_Version(0) } |
298 }; | |
299 | |
300 // Returns true if the flag is obsolete and fits into the range specified | |
301 // for being ignored. In the case that the flag is ignored, the 'version' | |
302 // value is filled in with the version number when the flag became | |
303 // obsolete so that that value can be displayed to the user. | |
304 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 305 int i = 0; |
242 | 306 assert(version != NULL, "Must provide a version buffer"); |
307 while (obsolete_jvm_flags[i].name != NULL) { | |
308 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 309 // <flag>=xxx form |
310 // [-|+]<flag> form | |
242 | 311 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 312 ((s[0] == '+' || s[0] == '-') && |
242 | 313 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
314 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
315 *version = flag_status.obsoleted_in; | |
316 return true; | |
317 } | |
0 | 318 } |
319 i++; | |
320 } | |
321 return false; | |
322 } | |
323 | |
324 // Constructs the system class path (aka boot class path) from the following | |
325 // components, in order: | |
326 // | |
327 // prefix // from -Xbootclasspath/p:... | |
328 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
329 // base // from os::get_system_properties() or -Xbootclasspath= | |
330 // suffix // from -Xbootclasspath/a:... | |
331 // | |
332 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
333 // directories are added to the sysclasspath just before the base. | |
334 // | |
335 // This could be AllStatic, but it isn't needed after argument processing is | |
336 // complete. | |
337 class SysClassPath: public StackObj { | |
338 public: | |
339 SysClassPath(const char* base); | |
340 ~SysClassPath(); | |
341 | |
342 inline void set_base(const char* base); | |
343 inline void add_prefix(const char* prefix); | |
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344 inline void add_suffix_to_prefix(const char* suffix); |
0 | 345 inline void add_suffix(const char* suffix); |
346 inline void reset_path(const char* base); | |
347 | |
348 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
349 // property. Must be called after all command-line arguments have been | |
350 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
351 // combined_path(). | |
352 void expand_endorsed(); | |
353 | |
354 inline const char* get_base() const { return _items[_scp_base]; } | |
355 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
356 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
357 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
358 | |
359 // Combine all the components into a single c-heap-allocated string; caller | |
360 // must free the string if/when no longer needed. | |
361 char* combined_path(); | |
362 | |
363 private: | |
364 // Utility routines. | |
365 static char* add_to_path(const char* path, const char* str, bool prepend); | |
366 static char* add_jars_to_path(char* path, const char* directory); | |
367 | |
368 inline void reset_item_at(int index); | |
369 | |
370 // Array indices for the items that make up the sysclasspath. All except the | |
371 // base are allocated in the C heap and freed by this class. | |
372 enum { | |
373 _scp_prefix, // from -Xbootclasspath/p:... | |
374 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
375 _scp_base, // the default sysclasspath | |
376 _scp_suffix, // from -Xbootclasspath/a:... | |
377 _scp_nitems // the number of items, must be last. | |
378 }; | |
379 | |
380 const char* _items[_scp_nitems]; | |
381 DEBUG_ONLY(bool _expansion_done;) | |
382 }; | |
383 | |
384 SysClassPath::SysClassPath(const char* base) { | |
385 memset(_items, 0, sizeof(_items)); | |
386 _items[_scp_base] = base; | |
387 DEBUG_ONLY(_expansion_done = false;) | |
388 } | |
389 | |
390 SysClassPath::~SysClassPath() { | |
391 // Free everything except the base. | |
392 for (int i = 0; i < _scp_nitems; ++i) { | |
393 if (i != _scp_base) reset_item_at(i); | |
394 } | |
395 DEBUG_ONLY(_expansion_done = false;) | |
396 } | |
397 | |
398 inline void SysClassPath::set_base(const char* base) { | |
399 _items[_scp_base] = base; | |
400 } | |
401 | |
402 inline void SysClassPath::add_prefix(const char* prefix) { | |
403 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
404 } | |
405 | |
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406 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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407 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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408 } |
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409 |
0 | 410 inline void SysClassPath::add_suffix(const char* suffix) { |
411 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
412 } | |
413 | |
414 inline void SysClassPath::reset_item_at(int index) { | |
415 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
416 if (_items[index] != NULL) { | |
6197 | 417 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 418 _items[index] = NULL; |
419 } | |
420 } | |
421 | |
422 inline void SysClassPath::reset_path(const char* base) { | |
423 // Clear the prefix and suffix. | |
424 reset_item_at(_scp_prefix); | |
425 reset_item_at(_scp_suffix); | |
426 set_base(base); | |
427 } | |
428 | |
429 //------------------------------------------------------------------------------ | |
430 | |
431 void SysClassPath::expand_endorsed() { | |
432 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
433 | |
434 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
435 if (path == NULL) { | |
436 path = Arguments::get_endorsed_dir(); | |
437 assert(path != NULL, "no default for java.endorsed.dirs"); | |
438 } | |
439 | |
440 char* expanded_path = NULL; | |
441 const char separator = *os::path_separator(); | |
442 const char* const end = path + strlen(path); | |
443 while (path < end) { | |
444 const char* tmp_end = strchr(path, separator); | |
445 if (tmp_end == NULL) { | |
446 expanded_path = add_jars_to_path(expanded_path, path); | |
447 path = end; | |
448 } else { | |
6197 | 449 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 450 memcpy(dirpath, path, tmp_end - path); |
451 dirpath[tmp_end - path] = '\0'; | |
452 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 453 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 454 path = tmp_end + 1; |
455 } | |
456 } | |
457 _items[_scp_endorsed] = expanded_path; | |
458 DEBUG_ONLY(_expansion_done = true;) | |
459 } | |
460 | |
461 // Combine the bootclasspath elements, some of which may be null, into a single | |
462 // c-heap-allocated string. | |
463 char* SysClassPath::combined_path() { | |
464 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
465 assert(_expansion_done, "must call expand_endorsed() first."); | |
466 | |
467 size_t lengths[_scp_nitems]; | |
468 size_t total_len = 0; | |
469 | |
470 const char separator = *os::path_separator(); | |
471 | |
472 // Get the lengths. | |
473 int i; | |
474 for (i = 0; i < _scp_nitems; ++i) { | |
475 if (_items[i] != NULL) { | |
476 lengths[i] = strlen(_items[i]); | |
477 // Include space for the separator char (or a NULL for the last item). | |
478 total_len += lengths[i] + 1; | |
479 } | |
480 } | |
481 assert(total_len > 0, "empty sysclasspath not allowed"); | |
482 | |
483 // Copy the _items to a single string. | |
6197 | 484 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 485 char* cp_tmp = cp; |
486 for (i = 0; i < _scp_nitems; ++i) { | |
487 if (_items[i] != NULL) { | |
488 memcpy(cp_tmp, _items[i], lengths[i]); | |
489 cp_tmp += lengths[i]; | |
490 *cp_tmp++ = separator; | |
491 } | |
492 } | |
493 *--cp_tmp = '\0'; // Replace the extra separator. | |
494 return cp; | |
495 } | |
496 | |
497 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
498 char* | |
499 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
500 char *cp; | |
501 | |
502 assert(str != NULL, "just checking"); | |
503 if (path == NULL) { | |
504 size_t len = strlen(str) + 1; | |
6197 | 505 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 506 memcpy(cp, str, len); // copy the trailing null |
507 } else { | |
508 const char separator = *os::path_separator(); | |
509 size_t old_len = strlen(path); | |
510 size_t str_len = strlen(str); | |
511 size_t len = old_len + str_len + 2; | |
512 | |
513 if (prepend) { | |
6197 | 514 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 515 char* cp_tmp = cp; |
516 memcpy(cp_tmp, str, str_len); | |
517 cp_tmp += str_len; | |
518 *cp_tmp = separator; | |
519 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 520 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 521 } else { |
6197 | 522 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 523 char* cp_tmp = cp + old_len; |
524 *cp_tmp = separator; | |
525 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
526 } | |
527 } | |
528 return cp; | |
529 } | |
530 | |
531 // Scan the directory and append any jar or zip files found to path. | |
532 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
533 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
534 DIR* dir = os::opendir(directory); | |
535 if (dir == NULL) return path; | |
536 | |
537 char dir_sep[2] = { '\0', '\0' }; | |
538 size_t directory_len = strlen(directory); | |
539 const char fileSep = *os::file_separator(); | |
540 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
541 | |
542 /* Scan the directory for jars/zips, appending them to path. */ | |
543 struct dirent *entry; | |
6197 | 544 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 545 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
546 const char* name = entry->d_name; | |
547 const char* ext = name + strlen(name) - 4; | |
548 bool isJarOrZip = ext > name && | |
549 (os::file_name_strcmp(ext, ".jar") == 0 || | |
550 os::file_name_strcmp(ext, ".zip") == 0); | |
551 if (isJarOrZip) { | |
6197 | 552 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 553 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
554 path = add_to_path(path, jarpath, false); | |
6197 | 555 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 556 } |
557 } | |
6197 | 558 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 559 os::closedir(dir); |
560 return path; | |
561 } | |
562 | |
563 // Parses a memory size specification string. | |
489
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564 static bool atomull(const char *s, julong* result) { |
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565 julong n = 0; |
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566 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 567 if (args_read != 1) { |
568 return false; | |
569 } | |
570 while (*s != '\0' && isdigit(*s)) { | |
571 s++; | |
572 } | |
573 // 4705540: illegal if more characters are found after the first non-digit | |
574 if (strlen(s) > 1) { | |
575 return false; | |
576 } | |
577 switch (*s) { | |
578 case 'T': case 't': | |
579 *result = n * G * K; | |
489
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580 // Check for overflow. |
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581 if (*result/((julong)G * K) != n) return false; |
0 | 582 return true; |
583 case 'G': case 'g': | |
584 *result = n * G; | |
489
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585 if (*result/G != n) return false; |
0 | 586 return true; |
587 case 'M': case 'm': | |
588 *result = n * M; | |
489
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589 if (*result/M != n) return false; |
0 | 590 return true; |
591 case 'K': case 'k': | |
592 *result = n * K; | |
489
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593 if (*result/K != n) return false; |
0 | 594 return true; |
595 case '\0': | |
596 *result = n; | |
597 return true; | |
598 default: | |
599 return false; | |
600 } | |
601 } | |
602 | |
489
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603 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 604 if (size < min_size) return arg_too_small; |
605 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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606 if (size > max_uintx) return arg_too_big; |
0 | 607 return arg_in_range; |
608 } | |
609 | |
610 // Describe an argument out of range error | |
611 void Arguments::describe_range_error(ArgsRange errcode) { | |
612 switch(errcode) { | |
613 case arg_too_big: | |
614 jio_fprintf(defaultStream::error_stream(), | |
615 "The specified size exceeds the maximum " | |
616 "representable size.\n"); | |
617 break; | |
618 case arg_too_small: | |
619 case arg_unreadable: | |
620 case arg_in_range: | |
621 // do nothing for now | |
622 break; | |
623 default: | |
624 ShouldNotReachHere(); | |
625 } | |
626 } | |
627 | |
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628 static bool set_bool_flag(char* name, bool value, Flag::Flags origin) { |
0 | 629 return CommandLineFlags::boolAtPut(name, &value, origin); |
630 } | |
631 | |
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632 static bool set_fp_numeric_flag(char* name, char* value, Flag::Flags origin) { |
0 | 633 double v; |
634 if (sscanf(value, "%lf", &v) != 1) { | |
635 return false; | |
636 } | |
637 | |
638 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
639 return true; | |
640 } | |
641 return false; | |
642 } | |
643 | |
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644 static bool set_numeric_flag(char* name, char* value, Flag::Flags origin) { |
489
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645 julong v; |
0 | 646 intx intx_v; |
647 bool is_neg = false; | |
489
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648 // Check the sign first since atomull() parses only unsigned values. |
0 | 649 if (*value == '-') { |
650 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
651 return false; | |
652 } | |
653 value++; | |
654 is_neg = true; | |
655 } | |
489
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656 if (!atomull(value, &v)) { |
0 | 657 return false; |
658 } | |
659 intx_v = (intx) v; | |
660 if (is_neg) { | |
661 intx_v = -intx_v; | |
662 } | |
663 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
664 return true; | |
665 } | |
666 uintx uintx_v = (uintx) v; | |
667 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
668 return true; | |
669 } | |
1064 | 670 uint64_t uint64_t_v = (uint64_t) v; |
671 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
672 return true; | |
673 } | |
0 | 674 return false; |
675 } | |
676 | |
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677 static bool set_string_flag(char* name, const char* value, Flag::Flags origin) { |
0 | 678 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; |
679 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 680 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 681 return true; |
682 } | |
683 | |
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684 static bool append_to_string_flag(char* name, const char* new_value, Flag::Flags origin) { |
0 | 685 const char* old_value = ""; |
686 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
687 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
688 size_t new_len = strlen(new_value); | |
689 const char* value; | |
690 char* free_this_too = NULL; | |
691 if (old_len == 0) { | |
692 value = new_value; | |
693 } else if (new_len == 0) { | |
694 value = old_value; | |
695 } else { | |
6197 | 696 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 697 // each new setting adds another LINE to the switch: |
698 sprintf(buf, "%s\n%s", old_value, new_value); | |
699 value = buf; | |
700 free_this_too = buf; | |
701 } | |
702 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
703 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 704 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 705 if (free_this_too != NULL) { |
706 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 707 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 708 } |
709 return true; | |
710 } | |
711 | |
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712 bool Arguments::parse_argument(const char* arg, Flag::Flags origin) { |
0 | 713 |
714 // range of acceptable characters spelled out for portability reasons | |
715 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
716 #define BUFLEN 255 | |
717 char name[BUFLEN+1]; | |
718 char dummy; | |
719 | |
720 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
721 return set_bool_flag(name, false, origin); | |
722 } | |
723 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
724 return set_bool_flag(name, true, origin); | |
725 } | |
726 | |
727 char punct; | |
728 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
729 const char* value = strchr(arg, '=') + 1; | |
730 Flag* flag = Flag::find_flag(name, strlen(name)); | |
731 if (flag != NULL && flag->is_ccstr()) { | |
732 if (flag->ccstr_accumulates()) { | |
733 return append_to_string_flag(name, value, origin); | |
734 } else { | |
735 if (value[0] == '\0') { | |
736 value = NULL; | |
737 } | |
738 return set_string_flag(name, value, origin); | |
739 } | |
740 } | |
741 } | |
742 | |
743 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
744 const char* value = strchr(arg, '=') + 1; | |
745 // -XX:Foo:=xxx will reset the string flag to the given value. | |
746 if (value[0] == '\0') { | |
747 value = NULL; | |
748 } | |
749 return set_string_flag(name, value, origin); | |
750 } | |
751 | |
752 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
753 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
754 #define NUMBER_RANGE "[0123456789]" | |
755 char value[BUFLEN + 1]; | |
756 char value2[BUFLEN + 1]; | |
757 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
758 // Looks like a floating-point number -- try again with more lenient format string | |
759 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
760 return set_fp_numeric_flag(name, value, origin); | |
761 } | |
762 } | |
763 | |
764 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
765 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
766 return set_numeric_flag(name, value, origin); | |
767 } | |
768 | |
769 return false; | |
770 } | |
771 | |
772 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
773 assert(bldarray != NULL, "illegal argument"); | |
774 | |
775 if (arg == NULL) { | |
776 return; | |
777 } | |
778 | |
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779 int new_count = *count + 1; |
0 | 780 |
781 // expand the array and add arg to the last element | |
782 if (*bldarray == NULL) { | |
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783 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 784 } else { |
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785 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 786 } |
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787 (*bldarray)[*count] = strdup(arg); |
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788 *count = new_count; |
0 | 789 } |
790 | |
791 void Arguments::build_jvm_args(const char* arg) { | |
792 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
793 } | |
794 | |
795 void Arguments::build_jvm_flags(const char* arg) { | |
796 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
797 } | |
798 | |
799 // utility function to return a string that concatenates all | |
800 // strings in a given char** array | |
801 const char* Arguments::build_resource_string(char** args, int count) { | |
802 if (args == NULL || count == 0) { | |
803 return NULL; | |
804 } | |
805 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
806 for (int i = 1; i < count; i++) { | |
807 length += strlen(args[i]) + 1; // add 1 for a space | |
808 } | |
809 char* s = NEW_RESOURCE_ARRAY(char, length); | |
810 strcpy(s, args[0]); | |
811 for (int j = 1; j < count; j++) { | |
812 strcat(s, " "); | |
813 strcat(s, args[j]); | |
814 } | |
815 return (const char*) s; | |
816 } | |
817 | |
818 void Arguments::print_on(outputStream* st) { | |
819 st->print_cr("VM Arguments:"); | |
820 if (num_jvm_flags() > 0) { | |
821 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
822 } | |
823 if (num_jvm_args() > 0) { | |
824 st->print("jvm_args: "); print_jvm_args_on(st); | |
825 } | |
826 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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827 if (_java_class_path != NULL) { |
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828 char* path = _java_class_path->value(); |
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829 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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830 } |
0 | 831 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
832 } | |
833 | |
834 void Arguments::print_jvm_flags_on(outputStream* st) { | |
835 if (_num_jvm_flags > 0) { | |
836 for (int i=0; i < _num_jvm_flags; i++) { | |
837 st->print("%s ", _jvm_flags_array[i]); | |
838 } | |
839 st->print_cr(""); | |
840 } | |
841 } | |
842 | |
843 void Arguments::print_jvm_args_on(outputStream* st) { | |
844 if (_num_jvm_args > 0) { | |
845 for (int i=0; i < _num_jvm_args; i++) { | |
846 st->print("%s ", _jvm_args_array[i]); | |
847 } | |
848 st->print_cr(""); | |
849 } | |
850 } | |
851 | |
242 | 852 bool Arguments::process_argument(const char* arg, |
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853 jboolean ignore_unrecognized, Flag::Flags origin) { |
242 | 854 |
855 JDK_Version since = JDK_Version(); | |
0 | 856 |
3250 | 857 if (parse_argument(arg, origin) || ignore_unrecognized) { |
858 return true; | |
0 | 859 } |
3250 | 860 |
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861 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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862 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 863 if (is_newly_obsolete(arg, &since)) { |
864 char version[256]; | |
865 since.to_string(version, sizeof(version)); | |
866 warning("ignoring option %s; support was removed in %s", argname, version); | |
867 return true; | |
868 } | |
869 | |
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870 // For locked flags, report a custom error message if available. |
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871 // Otherwise, report the standard unrecognized VM option. |
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872 |
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873 size_t arg_len; |
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874 const char* equal_sign = strchr(argname, '='); |
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875 if (equal_sign == NULL) { |
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876 arg_len = strlen(argname); |
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877 } else { |
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878 arg_len = equal_sign - argname; |
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879 } |
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880 |
11070 | 881 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true); |
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882 if (found_flag != NULL) { |
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883 char locked_message_buf[BUFLEN]; |
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884 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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885 if (strlen(locked_message_buf) == 0) { |
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886 if (found_flag->is_bool() && !has_plus_minus) { |
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887 jio_fprintf(defaultStream::error_stream(), |
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888 "Missing +/- setting for VM option '%s'\n", argname); |
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889 } else if (!found_flag->is_bool() && has_plus_minus) { |
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890 jio_fprintf(defaultStream::error_stream(), |
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891 "Unexpected +/- setting in VM option '%s'\n", argname); |
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892 } else { |
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893 jio_fprintf(defaultStream::error_stream(), |
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894 "Improperly specified VM option '%s'\n", argname); |
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895 } |
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896 } else { |
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897 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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898 } |
6017 | 899 } else { |
900 jio_fprintf(defaultStream::error_stream(), | |
901 "Unrecognized VM option '%s'\n", argname); | |
11070 | 902 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
903 if (fuzzy_matched != NULL) { | |
904 jio_fprintf(defaultStream::error_stream(), | |
905 "Did you mean '%s%s%s'?\n", | |
906 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
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907 fuzzy_matched->_name, |
11070 | 908 (fuzzy_matched->is_bool()) ? "" : "=<value>"); |
909 } | |
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910 } |
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911 |
3250 | 912 // allow for commandline "commenting out" options like -XX:#+Verbose |
913 return arg[0] == '#'; | |
0 | 914 } |
915 | |
916 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
917 FILE* stream = fopen(file_name, "rb"); | |
918 if (stream == NULL) { | |
919 if (should_exist) { | |
920 jio_fprintf(defaultStream::error_stream(), | |
921 "Could not open settings file %s\n", file_name); | |
922 return false; | |
923 } else { | |
924 return true; | |
925 } | |
926 } | |
927 | |
928 char token[1024]; | |
929 int pos = 0; | |
930 | |
931 bool in_white_space = true; | |
932 bool in_comment = false; | |
933 bool in_quote = false; | |
934 char quote_c = 0; | |
935 bool result = true; | |
936 | |
937 int c = getc(stream); | |
6901 | 938 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 939 if (in_white_space) { |
940 if (in_comment) { | |
941 if (c == '\n') in_comment = false; | |
942 } else { | |
943 if (c == '#') in_comment = true; | |
944 else if (!isspace(c)) { | |
945 in_white_space = false; | |
946 token[pos++] = c; | |
947 } | |
948 } | |
949 } else { | |
950 if (c == '\n' || (!in_quote && isspace(c))) { | |
951 // token ends at newline, or at unquoted whitespace | |
952 // this allows a way to include spaces in string-valued options | |
953 token[pos] = '\0'; | |
954 logOption(token); | |
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955 result &= process_argument(token, ignore_unrecognized, Flag::CONFIG_FILE); |
0 | 956 build_jvm_flags(token); |
957 pos = 0; | |
958 in_white_space = true; | |
959 in_quote = false; | |
960 } else if (!in_quote && (c == '\'' || c == '"')) { | |
961 in_quote = true; | |
962 quote_c = c; | |
963 } else if (in_quote && (c == quote_c)) { | |
964 in_quote = false; | |
965 } else { | |
966 token[pos++] = c; | |
967 } | |
968 } | |
969 c = getc(stream); | |
970 } | |
971 if (pos > 0) { | |
972 token[pos] = '\0'; | |
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973 result &= process_argument(token, ignore_unrecognized, Flag::CONFIG_FILE); |
0 | 974 build_jvm_flags(token); |
975 } | |
976 fclose(stream); | |
977 return result; | |
978 } | |
979 | |
980 //============================================================================================================= | |
981 // Parsing of properties (-D) | |
982 | |
983 const char* Arguments::get_property(const char* key) { | |
984 return PropertyList_get_value(system_properties(), key); | |
985 } | |
986 | |
987 bool Arguments::add_property(const char* prop) { | |
988 const char* eq = strchr(prop, '='); | |
989 char* key; | |
990 // ns must be static--its address may be stored in a SystemProperty object. | |
991 const static char ns[1] = {0}; | |
992 char* value = (char *)ns; | |
993 | |
994 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 995 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 996 strncpy(key, prop, key_len); |
997 key[key_len] = '\0'; | |
998 | |
999 if (eq != NULL) { | |
1000 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 1001 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 1002 strncpy(value, &prop[key_len + 1], value_len + 1); |
1003 } | |
1004 | |
1005 if (strcmp(key, "java.compiler") == 0) { | |
1006 process_java_compiler_argument(value); | |
1007 FreeHeap(key); | |
1008 if (eq != NULL) { | |
1009 FreeHeap(value); | |
1010 } | |
1011 return true; | |
691 | 1012 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 1013 _java_command = value; |
1014 | |
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1015 // Record value in Arguments, but let it get passed to Java. |
691 | 1016 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 1017 // launcher.pid property is private and is processed |
1018 // in process_sun_java_launcher_properties(); | |
1019 // the sun.java.launcher property is passed on to the java application | |
1020 FreeHeap(key); | |
1021 if (eq != NULL) { | |
1022 FreeHeap(value); | |
1023 } | |
1024 return true; | |
691 | 1025 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 1026 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1027 // its value without going through the property list or making a Java call. | |
1028 _java_vendor_url_bug = value; | |
691 | 1029 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1030 PropertyList_unique_add(&_system_properties, key, value, true); | |
1031 return true; | |
0 | 1032 } |
1033 // Create new property and add at the end of the list | |
1034 PropertyList_unique_add(&_system_properties, key, value); | |
1035 return true; | |
1036 } | |
1037 | |
1038 //=========================================================================================================== | |
1039 // Setting int/mixed/comp mode flags | |
1040 | |
1041 void Arguments::set_mode_flags(Mode mode) { | |
1042 // Set up default values for all flags. | |
1043 // If you add a flag to any of the branches below, | |
1044 // add a default value for it here. | |
1045 set_java_compiler(false); | |
1046 _mode = mode; | |
1047 | |
1048 // Ensure Agent_OnLoad has the correct initial values. | |
1049 // This may not be the final mode; mode may change later in onload phase. | |
1050 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1051 (char*)VM_Version::vm_info_string(), false); |
0 | 1052 |
1053 UseInterpreter = true; | |
1054 UseCompiler = true; | |
1055 UseLoopCounter = true; | |
1056 | |
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1057 #ifndef ZERO |
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1058 // Turn these off for mixed and comp. Leave them on for Zero. |
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1059 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1060 UseFastAccessorMethods = (mode == _int); |
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1061 } |
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1062 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1063 UseFastEmptyMethods = (mode == _int); |
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1064 } |
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1065 #endif |
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1066 |
0 | 1067 // Default values may be platform/compiler dependent - |
1068 // use the saved values | |
1069 ClipInlining = Arguments::_ClipInlining; | |
1070 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1071 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1072 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1073 | |
1074 // Change from defaults based on mode | |
1075 switch (mode) { | |
1076 default: | |
1077 ShouldNotReachHere(); | |
1078 break; | |
1079 case _int: | |
1080 UseCompiler = false; | |
1081 UseLoopCounter = false; | |
1082 AlwaysCompileLoopMethods = false; | |
1083 UseOnStackReplacement = false; | |
1084 break; | |
1085 case _mixed: | |
1086 // same as default | |
1087 break; | |
1088 case _comp: | |
1089 UseInterpreter = false; | |
1090 BackgroundCompilation = false; | |
1091 ClipInlining = false; | |
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1092 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1093 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1094 // compile a level 4 (C2) and then continue executing it. |
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1095 if (TieredCompilation) { |
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1096 Tier3InvokeNotifyFreqLog = 0; |
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1097 Tier4InvocationThreshold = 0; |
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1098 } |
0 | 1099 break; |
1100 } | |
1101 } | |
1102 | |
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1103 #if defined(COMPILER2) || defined(_LP64) || !INCLUDE_CDS |
0 | 1104 // Conflict: required to use shared spaces (-Xshare:on), but |
1105 // incompatible command line options were chosen. | |
1106 | |
1107 static void no_shared_spaces() { | |
1108 if (RequireSharedSpaces) { | |
1109 jio_fprintf(defaultStream::error_stream(), | |
1110 "Class data sharing is inconsistent with other specified options.\n"); | |
1111 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1112 } else { | |
1113 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1114 } | |
1115 } | |
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1116 #endif |
0 | 1117 |
1783 | 1118 void Arguments::set_tiered_flags() { |
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1119 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1120 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1121 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1122 } |
1123 if (CompilationPolicyChoice < 2) { | |
1124 vm_exit_during_initialization( | |
1125 "Incompatible compilation policy selected", NULL); | |
1126 } | |
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1127 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1128 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
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1129 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1130 } |
10278 | 1131 if (!UseInterpreter) { // -Xcomp |
1132 Tier3InvokeNotifyFreqLog = 0; | |
1133 Tier4InvocationThreshold = 0; | |
1134 } | |
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1135 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
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1136 FLAG_SET_DEFAULT(NmethodSweepFraction, 1 + ReservedCodeCacheSize / (16 * M)); |
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1137 } |
1783 | 1138 } |
1139 | |
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1140 #if INCLUDE_ALL_GCS |
4838 | 1141 static void disable_adaptive_size_policy(const char* collector_name) { |
1142 if (UseAdaptiveSizePolicy) { | |
1143 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1144 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1145 collector_name); | |
1146 } | |
1147 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1148 } | |
1149 } | |
1150 | |
0 | 1151 void Arguments::set_parnew_gc_flags() { |
1064 | 1152 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1153 "control point invariant"); |
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1154 assert(UseParNewGC, "Error"); |
0 | 1155 |
4838 | 1156 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1157 disable_adaptive_size_policy("UseParNewGC"); | |
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1158 |
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1159 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1160 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1161 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1162 } else if (ParallelGCThreads == 0) { |
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1163 jio_fprintf(defaultStream::error_stream(), |
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1164 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1165 vm_exit(1); |
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1166 } |
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1167 |
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1168 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1169 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1170 // we set them to 1024 and 1024. |
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1171 // See CR 6362902. |
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1172 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1173 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1174 } |
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1175 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1176 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1177 } |
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1178 |
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1179 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1180 // See CR 6362902. |
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1181 if (AlwaysTenure) { |
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1182 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1183 } |
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1184 // When using compressed oops, we use local overflow stacks, |
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1185 // rather than using a global overflow list chained through |
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1186 // the klass word of the object's pre-image. |
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1187 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1188 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1189 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1190 } |
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1191 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1192 } |
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1193 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1194 } |
1195 | |
1196 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1197 // sparc/solaris for certain applications, but would gain from | |
1198 // further optimization and tuning efforts, and would almost | |
1199 // certainly gain from analysis of platform and environment. | |
1200 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1201 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1202 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1203 |
0 | 1204 // If we are using CMS, we prefer to UseParNewGC, |
1205 // unless explicitly forbidden. | |
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1206 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1207 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1208 } |
1209 | |
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1210 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1211 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1212 |
1213 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1214 // as needed. | |
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1215 if (UseParNewGC) { |
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1216 set_parnew_gc_flags(); |
0 | 1217 } |
1218 | |
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1219 size_t max_heap = align_size_down(MaxHeapSize, |
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1220 CardTableRS::ct_max_alignment_constraint()); |
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1221 |
0 | 1222 // Now make adjustments for CMS |
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1223 intx tenuring_default = (intx)6; |
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1224 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1225 |
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1226 // Preferred young gen size for "short" pauses: |
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1227 // upper bound depends on # of threads and NewRatio. |
0 | 1228 const uintx parallel_gc_threads = |
1229 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1230 const size_t preferred_max_new_size_unaligned = | |
2368
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1231 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1232 size_t preferred_max_new_size = |
0 | 1233 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1234 | |
1235 // Unless explicitly requested otherwise, size young gen | |
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1236 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
886
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1237 |
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1238 // If either MaxNewSize or NewRatio is set on the command line, |
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1239 // assume the user is trying to set the size of the young gen. |
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1240 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1241 |
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1242 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1243 // NewSize was set on the command line and it is larger than |
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1244 // preferred_max_new_size. |
0 | 1245 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1246 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1247 } else { |
13
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1248 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1249 } |
1064 | 1250 if (PrintGCDetails && Verbose) { |
13
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1251 // Too early to use gclog_or_tty |
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1252 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1253 } |
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1254 |
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1255 // Code along this path potentially sets NewSize and OldSize |
1064 | 1256 if (PrintGCDetails && Verbose) { |
13
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1257 // Too early to use gclog_or_tty |
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1258 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1259 " initial_heap_size: " SIZE_FORMAT |
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1260 " max_heap: " SIZE_FORMAT, |
1064 | 1261 min_heap_size(), InitialHeapSize, max_heap); |
13
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1262 } |
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1263 size_t min_new = preferred_max_new_size; |
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1264 if (FLAG_IS_CMDLINE(NewSize)) { |
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1265 min_new = NewSize; |
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1266 } |
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1267 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1268 // Unless explicitly requested otherwise, make young gen |
1269 // at least min_new, and at most preferred_max_new_size. | |
1270 if (FLAG_IS_DEFAULT(NewSize)) { | |
13
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1271 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1272 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1273 if (PrintGCDetails && Verbose) { |
13
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1274 // Too early to use gclog_or_tty |
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1275 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1276 } |
0 | 1277 } |
1278 // Unless explicitly requested otherwise, size old gen | |
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1279 // so it's NewRatio x of NewSize. |
0 | 1280 if (FLAG_IS_DEFAULT(OldSize)) { |
1281 if (max_heap > NewSize) { | |
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1282 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1283 if (PrintGCDetails && Verbose) { |
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1284 // Too early to use gclog_or_tty |
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1285 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
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1286 } |
0 | 1287 } |
1288 } | |
1289 } | |
1290 } | |
1291 // Unless explicitly requested otherwise, definitely | |
1292 // promote all objects surviving "tenuring_default" scavenges. | |
1293 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1294 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1295 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1296 } |
1297 // If we decided above (or user explicitly requested) | |
1298 // `promote all' (via MaxTenuringThreshold := 0), | |
1299 // prefer minuscule survivor spaces so as not to waste | |
1300 // space for (non-existent) survivors | |
1301 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1302 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1303 } |
1304 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1305 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1306 // This is done in order to make ParNew+CMS configuration to work | |
1307 // with YoungPLABSize and OldPLABSize options. | |
1308 // See CR 6362902. | |
1309 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1310 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1311 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1312 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1313 // the value (either from the command line or ergonomics) of |
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1314 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1315 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
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1316 } else { |
0 | 1317 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1318 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1319 // we'll let it to take precedence. | |
1320 jio_fprintf(defaultStream::error_stream(), | |
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1321 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1322 " options are specified for the CMS collector." |
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1323 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1324 } |
1325 } | |
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1326 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1327 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1328 // unless it was manually specified. This is because a too-low value |
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1329 // will slow down scavenges. |
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1330 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1331 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1332 } |
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1333 } |
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1334 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1335 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1336 // If either of the static initialization defaults have changed, note this |
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1337 // modification. |
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1338 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1339 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1340 } |
1284 | 1341 if (PrintGCDetails && Verbose) { |
1342 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1343 MarkStackSize / K, MarkStackSizeMax / K); | |
1344 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1345 } | |
0 | 1346 } |
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1347 #endif // INCLUDE_ALL_GCS |
0 | 1348 |
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1349 void set_object_alignment() { |
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1350 // Object alignment. |
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1351 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1352 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1353 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1354 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1355 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1356 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1357 |
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1358 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1359 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1360 |
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1361 // Oop encoding heap max |
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1362 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1363 |
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1364 #if INCLUDE_ALL_GCS |
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1365 // Set CMS global values |
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1366 CompactibleFreeListSpace::set_cms_values(); |
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1367 #endif // INCLUDE_ALL_GCS |
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1368 } |
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1369 |
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1370 bool verify_object_alignment() { |
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1371 // Object alignment. |
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1372 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1373 jio_fprintf(defaultStream::error_stream(), |
1829
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1374 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1375 (int)ObjectAlignmentInBytes); |
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1376 return false; |
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1377 } |
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1378 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1379 jio_fprintf(defaultStream::error_stream(), |
1829
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1380 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1381 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1382 return false; |
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1383 } |
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1384 // It does not make sense to have big object alignment |
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1385 // since a space lost due to alignment will be greater |
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1386 // then a saved space from compressed oops. |
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1387 if ((int)ObjectAlignmentInBytes > 256) { |
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1388 jio_fprintf(defaultStream::error_stream(), |
7461
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1389 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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|
1390 (int)ObjectAlignmentInBytes); |
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|
1391 return false; |
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|
1392 } |
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1393 // In case page size is very small. |
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1394 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1395 jio_fprintf(defaultStream::error_stream(), |
7461
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1396 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
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|
1397 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1398 return false; |
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|
1399 } |
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|
1400 return true; |
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|
1401 } |
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|
1402 |
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1403 uintx Arguments::max_heap_for_compressed_oops() { |
1963 | 1404 // Avoid sign flip. |
12056
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|
1405 assert(OopEncodingHeapMax > (uint64_t)os::vm_page_size(), "Unusual page size"); |
12233
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1406 // We need to fit both the NULL page and the heap into the memory budget, while |
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1407 // keeping alignment constraints of the heap. To guarantee the latter, as the |
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1408 // NULL page is located before the heap, we pad the NULL page to the conservative |
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1409 // maximum alignment that the GC may ever impose upon the heap. |
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1410 size_t displacement_due_to_null_page = align_size_up_(os::vm_page_size(), |
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1411 Arguments::conservative_max_heap_alignment()); |
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1412 |
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1413 LP64_ONLY(return OopEncodingHeapMax - displacement_due_to_null_page); |
1064 | 1414 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1415 } |
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1416 |
0 | 1417 bool Arguments::should_auto_select_low_pause_collector() { |
1418 if (UseAutoGCSelectPolicy && | |
1419 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1420 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1421 if (PrintGCDetails) { | |
1422 // Cannot use gclog_or_tty yet. | |
1423 tty->print_cr("Automatic selection of the low pause collector" | |
1424 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1425 } | |
1426 return true; | |
1427 } | |
1428 return false; | |
1429 } | |
1430 | |
8741
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1431 void Arguments::set_use_compressed_oops() { |
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1432 #ifndef ZERO |
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|
1433 #ifdef _LP64 |
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1434 // MaxHeapSize is not set up properly at this point, but |
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|
1435 // the only value that can override MaxHeapSize if we are |
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|
1436 // to use UseCompressedOops is InitialHeapSize. |
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|
1437 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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1438 |
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|
1439 if (max_heap_size <= max_heap_for_compressed_oops()) { |
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|
1440 #if !defined(COMPILER1) || defined(TIERED) |
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1441 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
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|
1442 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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|
1443 } |
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|
1444 #endif |
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|
1445 #ifdef _WIN64 |
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|
1446 if (UseLargePages && UseCompressedOops) { |
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|
1447 // Cannot allocate guard pages for implicit checks in indexed addressing |
eac371996b44
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|
1448 // mode, when large pages are specified on windows. |
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|
1449 // This flag could be switched ON if narrow oop base address is set to 0, |
eac371996b44
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|
1450 // see code in Universe::initialize_heap(). |
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|
1451 Universe::set_narrow_oop_use_implicit_null_checks(false); |
eac371996b44
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|
1452 } |
eac371996b44
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|
1453 #endif // _WIN64 |
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|
1454 } else { |
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|
1455 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
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|
1456 warning("Max heap size too large for Compressed Oops"); |
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|
1457 FLAG_SET_DEFAULT(UseCompressedOops, false); |
12226
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|
1458 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
8741
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|
1459 } |
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|
1460 } |
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|
1461 #endif // _LP64 |
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|
1462 #endif // ZERO |
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|
1463 } |
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|
1464 |
12056
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|
1465 |
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|
1466 // NOTE: set_use_compressed_klass_ptrs() must be called after calling |
740e263c80c6
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|
1467 // set_use_compressed_oops(). |
740e263c80c6
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changeset
|
1468 void Arguments::set_use_compressed_klass_ptrs() { |
740e263c80c6
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changeset
|
1469 #ifndef ZERO |
740e263c80c6
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|
1470 #ifdef _LP64 |
12226
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|
1471 // UseCompressedOops must be on for UseCompressedClassPointers to be on. |
12056
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|
1472 if (!UseCompressedOops) { |
12226
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|
1473 if (UseCompressedClassPointers) { |
7944aba7ba41
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diff
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|
1474 warning("UseCompressedClassPointers requires UseCompressedOops"); |
12056
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1475 } |
12226
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1476 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
12056
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|
1477 } else { |
12226
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|
1478 // Turn on UseCompressedClassPointers too |
7944aba7ba41
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|
1479 if (FLAG_IS_DEFAULT(UseCompressedClassPointers)) { |
7944aba7ba41
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|
1480 FLAG_SET_ERGO(bool, UseCompressedClassPointers, true); |
12056
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1481 } |
12226
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|
1482 // Check the CompressedClassSpaceSize to make sure we use compressed klass ptrs. |
7944aba7ba41
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1483 if (UseCompressedClassPointers) { |
7944aba7ba41
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|
1484 if (CompressedClassSpaceSize > KlassEncodingMetaspaceMax) { |
7944aba7ba41
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|
1485 warning("CompressedClassSpaceSize is too large for UseCompressedClassPointers"); |
7944aba7ba41
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|
1486 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
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|
1487 } |
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|
1488 } |
740e263c80c6
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|
1489 } |
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|
1490 #endif // _LP64 |
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1491 #endif // !ZERO |
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|
1492 } |
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|
1493 |
12233
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1494 void Arguments::set_conservative_max_heap_alignment() { |
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1495 // The conservative maximum required alignment for the heap is the maximum of |
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1496 // the alignments imposed by several sources: any requirements from the heap |
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1497 // itself, the collector policy and the maximum page size we may run the VM |
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1498 // with. |
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1499 size_t heap_alignment = GenCollectedHeap::conservative_max_heap_alignment(); |
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1500 #if INCLUDE_ALL_GCS |
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1501 if (UseParallelGC) { |
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1502 heap_alignment = ParallelScavengeHeap::conservative_max_heap_alignment(); |
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1503 } else if (UseG1GC) { |
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|
1504 heap_alignment = G1CollectedHeap::conservative_max_heap_alignment(); |
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1505 } |
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1506 #endif // INCLUDE_ALL_GCS |
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1507 _conservative_max_heap_alignment = MAX3(heap_alignment, os::max_page_size(), |
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|
1508 CollectorPolicy::compute_max_alignment()); |
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1509 } |
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1510 |
0 | 1511 void Arguments::set_ergonomics_flags() { |
1512 | |
4946 | 1513 if (os::is_server_class_machine()) { |
0 | 1514 // If no other collector is requested explicitly, |
1515 // let the VM select the collector based on | |
1516 // machine class and automatic selection policy. | |
1517 if (!UseSerialGC && | |
1518 !UseConcMarkSweepGC && | |
342
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1519 !UseG1GC && |
0 | 1520 !UseParNewGC && |
1521 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1522 if (should_auto_select_low_pause_collector()) { | |
1523 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1524 } else { | |
1525 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1526 } | |
6725
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1527 } |
0 | 1528 } |
12280
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
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|
1529 #ifdef COMPILER2 |
9ed97b511b26
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12276
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|
1530 // Shared spaces work fine with other GCs but causes bytecode rewriting |
9ed97b511b26
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|
1531 // to be disabled, which hurts interpreter performance and decreases |
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|
1532 // server performance. When -server is specified, keep the default off |
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|
1533 // unless it is asked for. Future work: either add bytecode rewriting |
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|
1534 // at link time, or rewrite bytecodes in non-shared methods. |
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|
1535 if (!DumpSharedSpaces && !RequireSharedSpaces && |
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|
1536 (FLAG_IS_DEFAULT(UseSharedSpaces) || !UseSharedSpaces)) { |
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|
1537 no_shared_spaces(); |
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|
1538 } |
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|
1539 #endif |
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1540 |
12233
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|
1541 set_conservative_max_heap_alignment(); |
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1542 |
1010 | 1543 #ifndef ZERO |
113
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1544 #ifdef _LP64 |
8741
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|
1545 set_use_compressed_oops(); |
12056
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|
1546 |
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|
1547 // set_use_compressed_klass_ptrs() must be called after calling |
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|
1548 // set_use_compressed_oops(). |
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|
1549 set_use_compressed_klass_ptrs(); |
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1550 |
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1551 // Also checks that certain machines are slower with compressed oops |
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1552 // in vm_version initialization code. |
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1553 #endif // _LP64 |
1010 | 1554 #endif // !ZERO |
0 | 1555 } |
1556 | |
1557 void Arguments::set_parallel_gc_flags() { | |
342
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1558 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1559 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1560 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1561 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1562 } |
4879 | 1563 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1564 |
1565 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1566 // of the physical memory, up to a maximum of 1GB. | |
7471
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|
1567 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
1568 Abstract_VM_Version::parallel_worker_threads()); |
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|
1569 if (ParallelGCThreads == 0) { |
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|
1570 jio_fprintf(defaultStream::error_stream(), |
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|
1571 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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|
1572 vm_exit(1); |
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|
1573 } |
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|
1574 |
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|
1575 |
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|
1576 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
4c8bf5e55392
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|
1577 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
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|
1578 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
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|
1579 // See CR 6362902 for details. |
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|
1580 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
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|
1581 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
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|
1582 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1583 } |
7471
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|
1584 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
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|
1585 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
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|
1586 } |
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|
1587 } |
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|
1588 |
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|
1589 if (UseParallelOldGC) { |
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|
1590 // Par compact uses lower default values since they are treated as |
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|
1591 // minimums. These are different defaults because of the different |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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|
1592 // interpretation and are not ergonomically set. |
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|
1593 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
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|
1594 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1595 } |
1596 } | |
1597 } | |
1598 | |
342
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1599 void Arguments::set_g1_gc_flags() { |
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|
1600 assert(UseG1GC, "Error"); |
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|
1601 #ifdef COMPILER1 |
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1602 FastTLABRefill = false; |
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|
1603 #endif |
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1604 FLAG_SET_DEFAULT(ParallelGCThreads, |
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|
1605 Abstract_VM_Version::parallel_worker_threads()); |
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1606 if (ParallelGCThreads == 0) { |
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|
1607 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1608 Abstract_VM_Version::parallel_worker_threads()); |
342
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1609 } |
751 | 1610 |
7397
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|
1611 // MarkStackSize will be set (if it hasn't been set by the user) |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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|
1612 // when concurrent marking is initialized. |
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|
1613 // Its value will be based upon the number of parallel marking threads. |
442f942757c0
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|
1614 // But we do set the maximum mark stack size here. |
442f942757c0
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|
1615 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
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|
1616 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1617 } |
1356 | 1618 |
1619 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1620 // In G1, we want the default GC overhead goal to be higher than | |
1621 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1622 // be expanded more aggressively than we would like it to. In | |
1623 // fact, even 10% seems to not be high enough in some cases | |
1624 // (especially small GC stress tests that the main thing they do | |
1625 // is allocation). We might consider increase it further. | |
1626 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1627 } | |
7397
442f942757c0
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johnc
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7177
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|
1628 |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
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|
1629 if (PrintGCDetails && Verbose) { |
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7177
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|
1630 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
442f942757c0
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|
1631 MarkStackSize / K, MarkStackSizeMax / K); |
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|
1632 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
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|
1633 } |
342
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|
1634 } |
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|
1635 |
8854
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|
1636 julong Arguments::limit_by_allocatable_memory(julong limit) { |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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|
1637 julong max_allocatable; |
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|
1638 julong result = limit; |
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|
1639 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
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7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
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|
1640 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
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|
1641 } |
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|
1642 return result; |
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|
1643 } |
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|
1644 |
1064 | 1645 void Arguments::set_heap_size() { |
1646 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1647 // Deprecated flag | |
1648 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1649 } | |
1650 | |
1651 const julong phys_mem = | |
1652 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1653 : (julong)MaxRAM; | |
1654 | |
1655 // If the maximum heap size has not been set with -Xmx, | |
1656 // then set it as fraction of the size of physical memory, | |
1657 // respecting the maximum and minimum sizes of the heap. | |
342
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1658 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1659 julong reasonable_max = phys_mem / MaxRAMFraction; |
1660 | |
1661 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1662 // Small physical memory, so use a minimum fraction of it for the heap | |
1663 reasonable_max = phys_mem / MinRAMFraction; | |
1664 } else { | |
1665 // Not-small physical memory, so require a heap at least | |
1666 // as large as MaxHeapSize | |
1667 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1668 } | |
1669 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1670 // Limit the heap size to ErgoHeapSizeLimit | |
1671 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
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1672 } |
1064 | 1673 if (UseCompressedOops) { |
1674 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1675 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1676 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1677 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1678 // but it should be not less than default MaxHeapSize. | |
1679 max_coop_heap -= HeapBaseMinAddress; | |
1680 } | |
1681 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1682 } |
8854
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|
1683 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1684 |
1685 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1686 // An initial heap size was specified on the command line, | |
1687 // so be sure that the maximum size is consistent. Done | |
8854
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|
1688 // after call to limit_by_allocatable_memory because that |
1064 | 1689 // method might reduce the allocation size. |
1690 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1691 } | |
1692 | |
342
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1693 if (PrintGCDetails && Verbose) { |
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|
1694 // Cannot use gclog_or_tty yet. |
1064 | 1695 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1696 } |
1064 | 1697 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1698 } | |
1699 | |
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d17700c82d7d
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|
1700 // If the minimum or initial heap_size have not been set or requested to be set |
d17700c82d7d
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diff
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|
1701 // ergonomically, set them accordingly. |
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|
1702 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
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|
1703 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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|
1704 |
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|
1705 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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|
1706 |
8854
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|
1707 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
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|
1708 |
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|
1709 if (InitialHeapSize == 0) { |
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|
1710 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1711 |
d17700c82d7d
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|
1712 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1713 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1714 |
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|
1715 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
d17700c82d7d
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|
1716 |
d17700c82d7d
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|
1717 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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|
1718 // Cannot use gclog_or_tty yet. |
d17700c82d7d
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|
1719 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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changeset
|
1720 } |
d17700c82d7d
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changeset
|
1721 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
342
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6711316: Open source the Garbage-First garbage collector
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|
1722 } |
10241
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changeset
|
1723 // If the minimum heap size has not been set (via -Xms), |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
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changeset
|
1724 // synchronize with InitialHeapSize to avoid errors with the default value. |
d17700c82d7d
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diff
changeset
|
1725 if (min_heap_size() == 0) { |
d17700c82d7d
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diff
changeset
|
1726 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
d17700c82d7d
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changeset
|
1727 if (PrintGCDetails && Verbose) { |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
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diff
changeset
|
1728 // Cannot use gclog_or_tty yet. |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
tschatzl
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changeset
|
1729 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
d17700c82d7d
8006088: Incompatible heap size flags accepted by VM
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diff
changeset
|
1730 } |
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|
1731 } |
342
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|
1732 } |
37f87013dfd8
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|
1733 } |
37f87013dfd8
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diff
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|
1734 |
0 | 1735 // This must be called after ergonomics because we want bytecode rewriting |
1736 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1737 void Arguments::set_bytecode_flags() { | |
1738 // Better not attempt to store into a read-only space. | |
1739 if (UseSharedSpaces) { | |
1740 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1741 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1742 } | |
1743 | |
1744 if (!RewriteBytecodes) { | |
1745 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1746 } | |
1747 } | |
1748 | |
1749 // Aggressive optimization flags -XX:+AggressiveOpts | |
1750 void Arguments::set_aggressive_opts_flags() { | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1751 #ifdef COMPILER2 |
10278 | 1752 if (AggressiveUnboxing) { |
1753 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1754 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1755 } else if (!EliminateAutoBox) { | |
1756 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1757 AggressiveUnboxing = false; | |
1758 } | |
1759 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1760 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1761 } else if (!DoEscapeAnalysis) { | |
1762 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1763 AggressiveUnboxing = false; | |
1764 } | |
1765 } | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1766 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1767 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1768 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1769 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1770 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1771 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
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|
1772 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1773 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1774 // Feed the cache size setting into the JDK |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1775 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1776 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1777 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1778 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1779 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1780 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
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|
1781 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1782 #endif |
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diff
changeset
|
1783 |
0 | 1784 if (AggressiveOpts) { |
61 | 1785 // Sample flag setting code |
1786 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1787 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1788 // } | |
0 | 1789 } |
1790 } | |
1791 | |
1792 //=========================================================================================================== | |
1793 // Parsing of java.compiler property | |
1794 | |
1795 void Arguments::process_java_compiler_argument(char* arg) { | |
1796 // For backwards compatibility, Djava.compiler=NONE or "" | |
1797 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1798 // is also specified. | |
1799 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1800 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1801 } | |
1802 } | |
1803 | |
1804 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1805 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
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parents:
2243
diff
changeset
|
1806 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1807 _created_by_gamma_launcher = true; |
da091bb67459
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parents:
2243
diff
changeset
|
1808 } |
0 | 1809 } |
1810 | |
1811 bool Arguments::created_by_java_launcher() { | |
1812 assert(_sun_java_launcher != NULL, "property must have value"); | |
1813 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1814 } | |
1815 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1816 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1817 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1818 } |
da091bb67459
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sla
parents:
2243
diff
changeset
|
1819 |
0 | 1820 //=========================================================================================================== |
1821 // Parsing of main arguments | |
1822 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1823 bool Arguments::verify_interval(uintx val, uintx min, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
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diff
changeset
|
1824 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
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diff
changeset
|
1825 // Returns true iff value is in the inclusive interval [min..max] |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1826 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
1188
diff
changeset
|
1827 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1828 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
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diff
changeset
|
1829 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1830 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1831 "%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
|
1832 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1833 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
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diff
changeset
|
1834 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
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diff
changeset
|
1835 } |
745c853ee57f
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parents:
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diff
changeset
|
1836 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
changeset
|
1837 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
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2362
diff
changeset
|
1838 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1839 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1840 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1841 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
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1681
diff
changeset
|
1842 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1843 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1844 "%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
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1681
diff
changeset
|
1845 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1846 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1847 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1848 |
0 | 1849 bool Arguments::verify_percentage(uintx value, const char* name) { |
1850 if (value <= 100) { | |
1851 return true; | |
1852 } | |
1853 jio_fprintf(defaultStream::error_stream(), | |
1854 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1855 name, value); | |
1856 return false; | |
1857 } | |
1858 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
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8847
diff
changeset
|
1859 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
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8847
diff
changeset
|
1860 #ifdef ASSERT |
0 | 1861 static bool verify_serial_gc_flags() { |
1862 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
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932
diff
changeset
|
1863 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
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changeset
|
1864 UseParallelGC || UseParallelOldGC)); |
0 | 1865 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
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8847
diff
changeset
|
1866 #endif // ASSERT |
cc32ccaaf47f
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8847
diff
changeset
|
1867 #endif // INCLUDE_ALL_GCS |
0 | 1868 |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
1869 // check if do gclog rotation |
2a241e764894
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changeset
|
1870 // +UseGCLogFileRotation is a must, |
2a241e764894
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|
1871 // no gc log rotation when log file not supplied or |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
1872 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
1873 void check_gclog_consistency() { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
1874 if (UseGCLogFileRotation) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
1875 if ((Arguments::gc_log_filename() == NULL) || |
2a241e764894
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diff
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|
1876 (NumberOfGCLogFiles == 0) || |
2a241e764894
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diff
changeset
|
1877 (GCLogFileSize == 0)) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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diff
changeset
|
1878 jio_fprintf(defaultStream::output_stream(), |
12215 | 1879 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>[k|K|m|M|g|G]\n" |
3767
2a241e764894
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3349
diff
changeset
|
1880 "where num_of_file > 0 and num_of_size > 0\n" |
2a241e764894
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diff
changeset
|
1881 "GC log rotation is turned off\n"); |
2a241e764894
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3349
diff
changeset
|
1882 UseGCLogFileRotation = false; |
2a241e764894
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diff
changeset
|
1883 } |
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|
1884 } |
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diff
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|
1885 |
2a241e764894
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diff
changeset
|
1886 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
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diff
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1887 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
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1888 jio_fprintf(defaultStream::output_stream(), |
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1889 "GCLogFileSize changed to minimum 8K\n"); |
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1890 } |
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1891 } |
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1892 |
12215 | 1893 // This function is called for -Xloggc:<filename>, it can be used |
1894 // to check if a given file name(or string) conforms to the following | |
1895 // specification: | |
1896 // A valid string only contains "[A-Z][a-z][0-9].-_%[p|t]" | |
1897 // %p and %t only allowed once. We only limit usage of filename not path | |
1898 bool is_filename_valid(const char *file_name) { | |
1899 const char* p = file_name; | |
1900 char file_sep = os::file_separator()[0]; | |
1901 const char* cp; | |
1902 // skip prefix path | |
1903 for (cp = file_name; *cp != '\0'; cp++) { | |
1904 if (*cp == '/' || *cp == file_sep) { | |
1905 p = cp + 1; | |
1906 } | |
1907 } | |
1908 | |
1909 int count_p = 0; | |
1910 int count_t = 0; | |
1911 while (*p != '\0') { | |
1912 if ((*p >= '0' && *p <= '9') || | |
1913 (*p >= 'A' && *p <= 'Z') || | |
1914 (*p >= 'a' && *p <= 'z') || | |
1915 *p == '-' || | |
1916 *p == '_' || | |
1917 *p == '.') { | |
1918 p++; | |
1919 continue; | |
1920 } | |
1921 if (*p == '%') { | |
1922 if(*(p + 1) == 'p') { | |
1923 p += 2; | |
1924 count_p ++; | |
1925 continue; | |
1926 } | |
1927 if (*(p + 1) == 't') { | |
1928 p += 2; | |
1929 count_t ++; | |
1930 continue; | |
1931 } | |
1932 } | |
1933 return false; | |
1934 } | |
1935 return count_p < 2 && count_t < 2; | |
1936 } | |
1937 | |
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1938 // Check consistency of GC selection |
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1939 bool Arguments::check_gc_consistency() { |
3767
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1940 check_gclog_consistency(); |
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1941 bool status = true; |
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1942 // Ensure that the user has not selected conflicting sets |
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1943 // of collectors. [Note: this check is merely a user convenience; |
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1944 // collectors over-ride each other so that only a non-conflicting |
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1945 // set is selected; however what the user gets is not what they |
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1946 // may have expected from the combination they asked for. It's |
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1947 // better to reduce user confusion by not allowing them to |
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1948 // select conflicting combinations. |
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1949 uint i = 0; |
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1950 if (UseSerialGC) i++; |
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1951 if (UseConcMarkSweepGC || UseParNewGC) i++; |
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1952 if (UseParallelGC || UseParallelOldGC) i++; |
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1953 if (UseG1GC) i++; |
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1954 if (i > 1) { |
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1955 jio_fprintf(defaultStream::error_stream(), |
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1956 "Conflicting collector combinations in option list; " |
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1957 "please refer to the release notes for the combinations " |
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1958 "allowed\n"); |
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1959 status = false; |
11109
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1960 } else if (ReservedCodeCacheSize > 2*G) { |
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1961 // Code cache size larger than MAXINT is not supported. |
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1962 jio_fprintf(defaultStream::error_stream(), |
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1963 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
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1964 (2*G)/M); |
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1965 status = false; |
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1966 } |
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1967 return status; |
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1968 } |
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1969 |
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1970 void Arguments::check_deprecated_gcs() { |
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1971 if (UseConcMarkSweepGC && !UseParNewGC) { |
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1972 warning("Using the DefNew young collector with the CMS collector is deprecated " |
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1973 "and will likely be removed in a future release"); |
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1974 } |
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1975 |
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1976 if (UseParNewGC && !UseConcMarkSweepGC) { |
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1977 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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1978 // set up UseSerialGC properly, so that can't be used in the check here. |
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1979 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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1980 "and will likely be removed in a future release"); |
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1981 } |
7453 | 1982 |
1983 if (CMSIncrementalMode) { | |
1984 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
1985 } | |
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1986 } |
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1987 |
8734 | 1988 void Arguments::check_deprecated_gc_flags() { |
1989 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
1990 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
1991 "and will likely be removed in future release"); | |
1992 } | |
11977 | 1993 if (FLAG_IS_CMDLINE(DefaultMaxRAMFraction)) { |
1994 warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. " | |
1995 "Use MaxRAMFraction instead."); | |
1996 } | |
8734 | 1997 } |
1998 | |
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1999 // Check stack pages settings |
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2000 bool Arguments::check_stack_pages() |
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2001 { |
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2002 bool status = true; |
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2003 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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2004 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
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2005 // greater stack shadow pages can't generate instruction to bang stack |
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2006 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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2007 return status; |
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2008 } |
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2009 |
0 | 2010 // Check the consistency of vm_init_args |
2011 bool Arguments::check_vm_args_consistency() { | |
2012 // Method for adding checks for flag consistency. | |
2013 // The intent is to warn the user of all possible conflicts, | |
2014 // before returning an error. | |
2015 // Note: Needs platform-dependent factoring. | |
2016 bool status = true; | |
2017 | |
2018 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
2019 // builds so the cost of stack banging can be measured. | |
2020 #if (defined(PRODUCT) && defined(SOLARIS)) | |
2021 if (!UseBoundThreads && !UseStackBanging) { | |
2022 jio_fprintf(defaultStream::error_stream(), | |
2023 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
2024 | |
2025 status = false; | |
2026 } | |
2027 #endif | |
2028 | |
2029 if (TLABRefillWasteFraction == 0) { | |
2030 jio_fprintf(defaultStream::error_stream(), | |
2031 "TLABRefillWasteFraction should be a denominator, " | |
2032 "not " SIZE_FORMAT "\n", | |
2033 TLABRefillWasteFraction); | |
2034 status = false; | |
2035 } | |
2036 | |
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2037 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 2038 "AdaptiveSizePolicyWeight"); |
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2039 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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2040 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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2041 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 2042 |
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2043 // Divide by bucket size to prevent a large size from causing rollover when |
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2044 // calculating amount of memory needed to be allocated for the String table. |
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2045 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
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2046 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
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2047 |
12825
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12326
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2048 status = status && verify_interval(SymbolTableSize, minimumSymbolTableSize, |
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2049 (max_uintx / SymbolTable::bucket_size()), "SymbolTable size"); |
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2050 |
0 | 2051 if (MinHeapFreeRatio > MaxHeapFreeRatio) { |
2052 jio_fprintf(defaultStream::error_stream(), | |
2053 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
2054 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
2055 MinHeapFreeRatio, MaxHeapFreeRatio); | |
2056 status = false; | |
2057 } | |
2058 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
2059 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
2060 | |
8040
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2061 // Min/MaxMetaspaceFreeRatio |
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2062 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
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2063 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
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2064 |
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2065 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
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2066 jio_fprintf(defaultStream::error_stream(), |
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2067 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
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2068 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
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2069 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
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2070 MinMetaspaceFreeRatio, |
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2071 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
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2072 MaxMetaspaceFreeRatio); |
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2073 status = false; |
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2074 } |
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2075 |
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2076 // Trying to keep 100% free is not practical |
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2077 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
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2078 |
0 | 2079 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
2080 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
2081 } | |
2082 | |
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2083 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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2084 // Settings to encourage splitting. |
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2085 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 2086 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
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2087 } |
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2088 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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2089 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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2090 } |
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|
2091 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2092 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2093 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2094 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 2095 if (GCTimeLimit == 100) { |
2096 // Turn off gc-overhead-limit-exceeded checks | |
2097 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
2098 } | |
2099 | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2100 status = status && check_gc_consistency(); |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
2101 status = status && check_stack_pages(); |
0 | 2102 |
2103 if (CMSIncrementalMode) { | |
2104 if (!UseConcMarkSweepGC) { | |
2105 jio_fprintf(defaultStream::error_stream(), | |
2106 "error: invalid argument combination.\n" | |
2107 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2108 "selected in order\nto use CMSIncrementalMode.\n"); | |
2109 status = false; | |
2110 } else { | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2111 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2112 "CMSIncrementalDutyCycle"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2113 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2114 "CMSIncrementalDutyCycleMin"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2115 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2116 "CMSIncrementalSafetyFactor"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2117 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2118 "CMSIncrementalOffset"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2119 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2120 "CMSExpAvgFactor"); |
2121 // If it was not set on the command line, set | |
2122 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2123 if (CMSInitiatingOccupancyFraction < 0) { | |
2124 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2125 } | |
2126 } | |
2127 } | |
2128 | |
2129 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2130 // insists that we hold the requisite locks so that the iteration is | |
2131 // MT-safe. For the verification at start-up and shut-down, we don't | |
2132 // yet have a good way of acquiring and releasing these locks, | |
2133 // which are not visible at the CollectedHeap level. We want to | |
2134 // be able to acquire these locks and then do the iteration rather | |
2135 // than just disable the lock verification. This will be fixed under | |
2136 // bug 4788986. | |
2137 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2138 if (VerifyDuringStartup) { |
0 | 2139 warning("Heap verification at start-up disabled " |
2140 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2141 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2142 } |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2143 |
0 | 2144 if (VerifyBeforeExit) { |
2145 warning("Heap verification at shutdown disabled " | |
2146 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2147 VerifyBeforeExit = false; // Disable verification at shutdown | |
2148 } | |
2149 } | |
2150 | |
2151 // Note: only executed in non-PRODUCT mode | |
2152 if (!UseAsyncConcMarkSweepGC && | |
2153 (ExplicitGCInvokesConcurrent || | |
2154 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2155 jio_fprintf(defaultStream::error_stream(), | |
6628
bb3f6194fedb
7178363: G1: Remove the serial code for PrintGCDetails and make it a special case of the parallel code
brutisso
parents:
6266
diff
changeset
|
2156 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2157 " with -UseAsyncConcMarkSweepGC"); |
2158 status = false; | |
2159 } | |
2160 | |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2161 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2162 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2163 #if INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2164 if (UseG1GC) { |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2165 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2166 "InitiatingHeapOccupancyPercent"); |
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2167 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2168 "G1RefProcDrainInterval"); |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2169 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2170 "G1ConcMarkStepDurationMillis"); |
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2171 status = status && verify_interval(G1ConcRSHotCardLimit, 0, max_jubyte, |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2172 "G1ConcRSHotCardLimit"); |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2173 status = status && verify_interval(G1ConcRSLogCacheSize, 0, 31, |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2174 "G1ConcRSLogCacheSize"); |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2175 } |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2176 if (UseConcMarkSweepGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2177 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2178 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2179 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2180 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2181 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2182 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2183 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2184 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2185 status = status && verify_interval(CMS_SweepWeight, 0, 100, "CMS_SweepWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2186 status = status && verify_interval(CMS_FLSWeight, 0, 100, "CMS_FLSWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2187 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2188 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2189 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2190 status = status && verify_min_value(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2191 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2192 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2193 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2194 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2195 status = status && verify_interval(CMSPrecleanNumerator, 0, CMSPrecleanDenominator - 1, "CMSPrecleanNumerator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2196 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2197 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2198 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2199 status = status && verify_min_value(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2200 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2201 status = status && verify_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2202 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2203 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2204 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2205 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2206 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2207 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2208 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2209 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2210 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2211 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2212 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2213 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2214 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2215 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2216 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2217 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2218 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2219 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2220 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2221 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2222 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2223 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2224 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2225 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2226 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2227 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2228 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2229 // 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
|
2230 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2231 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2232 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2233 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2234 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
|
2235 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
2236 status = status && verify_interval(CompressedClassSpaceSize, 1*M, 3*G, |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
2237 "CompressedClassSpaceSize"); |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2238 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2239 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2240 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2241 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2242 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2243 status = status && verify_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2244 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2245 status = status && verify_min_value(HeapSizePerGCThread, (uintx) os::vm_page_size(), "HeapSizePerGCThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2246 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2247 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2248 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2249 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2250 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2251 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2252 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2253 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2254 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2255 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2256 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2257 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2258 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2259 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2260 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2261 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2262 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2263 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2264 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2265 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2266 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2267 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2268 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2269 // the "age" field in the oop header is 4 bits; do not want to pull in markOop.hpp |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2270 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2271 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2272 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2273 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2274 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2275 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2276 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2277 #ifdef SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2278 if (UseConcMarkSweepGC || UseG1GC) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2279 // Issue a stern warning if the user has explicitly set |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2280 // UseMemSetInBOT (it is known to cause issues), but allow |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2281 // use for experimentation and debugging. |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2282 if (VM_Version::is_sun4v() && UseMemSetInBOT) { |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2283 assert(!FLAG_IS_DEFAULT(UseMemSetInBOT), "Error"); |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2284 warning("Experimental flag -XX:+UseMemSetInBOT is known to cause instability" |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2285 " 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
|
2286 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2287 } |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2288 #endif // SPARC |
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2289 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2290 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2291 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2292 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2293 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2294 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
|
2295 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2296 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2297 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2298 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2299 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2300 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2301 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2302 // 8K is well beyond the reasonable HW cache line size, even with the |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2303 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2304 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2305 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2306 jio_fprintf(defaultStream::error_stream(), |
12129 | 2307 "ContendedPaddingWidth=" INTX_FORMAT " must be in between %d and %d\n", |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2308 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2309 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2310 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2311 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2312 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2313 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2314 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2315 jio_fprintf(defaultStream::error_stream(), |
12129 | 2316 "ContendedPaddingWidth=" INTX_FORMAT " must be a multiple of %d\n", |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2317 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2318 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2319 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2320 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2321 // Check lower bounds of the code cache |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2322 // Template Interpreter code is approximately 3X larger in debug builds. |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2323 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2324 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2325 jio_fprintf(defaultStream::error_stream(), |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2326 "Invalid InitialCodeCacheSize=%dK. Must be at least %dK.\n", InitialCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2327 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2328 status = false; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2329 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2330 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2331 "Invalid ReservedCodeCacheSize: %dK. Must be at least InitialCodeCacheSize=%dK.\n", |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2332 ReservedCodeCacheSize/K, InitialCodeCacheSize/K); |
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2333 status = false; |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2334 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2335 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2336 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2337 min_code_cache_size/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2338 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2339 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2340 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2341 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2342 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2343 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
parents:
11083
diff
changeset
|
2344 status = false; |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2345 } |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2346 |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2347 status &= verify_interval(NmethodSweepFraction, 1, ReservedCodeCacheSize/K, "NmethodSweepFraction"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2348 status &= verify_interval(NmethodSweepActivity, 0, 2000, "NmethodSweepActivity"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
anoll
parents:
12322
diff
changeset
|
2349 |
0 | 2350 return status; |
2351 } | |
2352 | |
2353 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2354 const char* option_type) { | |
2355 if (ignore) return false; | |
2356 | |
2357 const char* spacer = " "; | |
2358 if (option_type == NULL) { | |
2359 option_type = ++spacer; // Set both to the empty string. | |
2360 } | |
2361 | |
2362 if (os::obsolete_option(option)) { | |
2363 jio_fprintf(defaultStream::error_stream(), | |
2364 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2365 option->optionString); | |
2366 return false; | |
2367 } else { | |
2368 jio_fprintf(defaultStream::error_stream(), | |
2369 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2370 option->optionString); | |
2371 return true; | |
2372 } | |
2373 } | |
2374 | |
2375 static const char* user_assertion_options[] = { | |
2376 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2377 }; | |
2378 | |
2379 static const char* system_assertion_options[] = { | |
2380 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2381 }; | |
2382 | |
2383 // Return true if any of the strings in null-terminated array 'names' matches. | |
2384 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2385 // the option must match exactly. | |
2386 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2387 bool tail_allowed) { | |
2388 for (/* empty */; *names != NULL; ++names) { | |
2389 if (match_option(option, *names, tail)) { | |
2390 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2391 return true; | |
2392 } | |
2393 } | |
2394 } | |
2395 return false; | |
2396 } | |
2397 | |
1284 | 2398 bool Arguments::parse_uintx(const char* value, |
2399 uintx* uintx_arg, | |
2400 uintx min_size) { | |
2401 | |
2402 // Check the sign first since atomull() parses only unsigned values. | |
2403 bool value_is_positive = !(*value == '-'); | |
2404 | |
2405 if (value_is_positive) { | |
2406 julong n; | |
2407 bool good_return = atomull(value, &n); | |
2408 if (good_return) { | |
2409 bool above_minimum = n >= min_size; | |
2410 bool value_is_too_large = n > max_uintx; | |
2411 | |
2412 if (above_minimum && !value_is_too_large) { | |
2413 *uintx_arg = n; | |
2414 return true; | |
2415 } | |
2416 } | |
2417 } | |
2418 return false; | |
2419 } | |
2420 | |
0 | 2421 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
|
2422 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2423 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2424 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2425 return check_memory_size(*long_arg, min_size); |
2426 } | |
2427 | |
2428 // Parse JavaVMInitArgs structure | |
2429 | |
2430 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2431 // For components of the system classpath. | |
2432 SysClassPath scp(Arguments::get_sysclasspath()); | |
2433 bool scp_assembly_required = false; | |
2434 | |
2435 // Save default settings for some mode flags | |
2436 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2437 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2438 Arguments::_ClipInlining = ClipInlining; | |
2439 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2440 | |
3341
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2441 // Setup flags for mixed which is the default |
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2442 set_mode_flags(_mixed); |
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2443 |
0 | 2444 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2445 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2446 if (result != JNI_OK) { | |
2447 return result; | |
2448 } | |
2449 | |
2450 // Parse JavaVMInitArgs structure passed in | |
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2451 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, Flag::COMMAND_LINE); |
0 | 2452 if (result != JNI_OK) { |
2453 return result; | |
2454 } | |
2455 | |
2456 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) | |
2457 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2458 if (result != JNI_OK) { | |
2459 return result; | |
2460 } | |
2461 | |
2462 // Do final processing now that all arguments have been parsed | |
2463 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2464 if (result != JNI_OK) { | |
2465 return result; | |
2466 } | |
2467 | |
2468 return JNI_OK; | |
2469 } | |
2470 | |
10170
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2471 // Checks if name in command-line argument -agent{lib,path}:name[=options] |
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2472 // represents a valid HPROF of JDWP agent. is_path==true denotes that we |
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2473 // are dealing with -agentpath (case where name is a path), otherwise with |
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2474 // -agentlib |
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2475 bool valid_hprof_or_jdwp_agent(char *name, bool is_path) { |
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2476 char *_name; |
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2477 const char *_hprof = "hprof", *_jdwp = "jdwp"; |
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2478 size_t _len_hprof, _len_jdwp, _len_prefix; |
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2479 |
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2480 if (is_path) { |
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2481 if ((_name = strrchr(name, (int) *os::file_separator())) == NULL) { |
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2482 return false; |
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|
2483 } |
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2484 |
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2485 _name++; // skip past last path separator |
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2486 _len_prefix = strlen(JNI_LIB_PREFIX); |
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2487 |
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2488 if (strncmp(_name, JNI_LIB_PREFIX, _len_prefix) != 0) { |
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2489 return false; |
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|
2490 } |
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2491 |
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2492 _name += _len_prefix; |
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2493 _len_hprof = strlen(_hprof); |
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2494 _len_jdwp = strlen(_jdwp); |
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2495 |
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2496 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
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2497 _name += _len_hprof; |
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2498 } |
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2499 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
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2500 _name += _len_jdwp; |
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2501 } |
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2502 else { |
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2503 return false; |
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|
2504 } |
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|
2505 |
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2506 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
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2507 return false; |
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|
2508 } |
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|
2509 |
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2510 return true; |
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|
2511 } |
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|
2512 |
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2513 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
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2514 return true; |
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|
2515 } |
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|
2516 |
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2517 return false; |
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|
2518 } |
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2519 |
0 | 2520 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2521 SysClassPath* scp_p, | |
2522 bool* scp_assembly_required_p, | |
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2523 Flag::Flags origin) { |
0 | 2524 // Remaining part of option string |
2525 const char* tail; | |
2526 | |
2527 // iterate over arguments | |
2528 for (int index = 0; index < args->nOptions; index++) { | |
2529 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2530 | |
2531 const JavaVMOption* option = args->options + index; | |
2532 | |
2533 if (!match_option(option, "-Djava.class.path", &tail) && | |
2534 !match_option(option, "-Dsun.java.command", &tail) && | |
2535 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2536 | |
2537 // add all jvm options to the jvm_args string. This string | |
2538 // is used later to set the java.vm.args PerfData string constant. | |
2539 // the -Djava.class.path and the -Dsun.java.command options are | |
2540 // omitted from jvm_args string as each have their own PerfData | |
2541 // string constant object. | |
2542 build_jvm_args(option->optionString); | |
2543 } | |
2544 | |
2545 // -verbose:[class/gc/jni] | |
2546 if (match_option(option, "-verbose", &tail)) { | |
2547 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2548 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2549 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2550 } else if (!strcmp(tail, ":gc")) { | |
2551 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2552 } else if (!strcmp(tail, ":jni")) { | |
2553 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2554 } | |
2555 // -da / -ea / -disableassertions / -enableassertions | |
2556 // These accept an optional class/package name separated by a colon, e.g., | |
2557 // -da:java.lang.Thread. | |
2558 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2559 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2560 if (*tail == '\0') { | |
2561 JavaAssertions::setUserClassDefault(enable); | |
2562 } else { | |
2563 assert(*tail == ':', "bogus match by match_option()"); | |
2564 JavaAssertions::addOption(tail + 1, enable); | |
2565 } | |
2566 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2567 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2568 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2569 JavaAssertions::setSystemClassDefault(enable); | |
2570 // -bootclasspath: | |
2571 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2572 scp_p->reset_path(tail); | |
2573 *scp_assembly_required_p = true; | |
2574 // -bootclasspath/a: | |
2575 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2576 scp_p->add_suffix(tail); | |
2577 *scp_assembly_required_p = true; | |
2578 // -bootclasspath/p: | |
2579 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2580 scp_p->add_prefix(tail); | |
2581 *scp_assembly_required_p = true; | |
2582 // -Xrun | |
2583 } else if (match_option(option, "-Xrun", &tail)) { | |
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2584 if (tail != NULL) { |
0 | 2585 const char* pos = strchr(tail, ':'); |
2586 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2587 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2588 name[len] = '\0'; |
2589 | |
2590 char *options = NULL; | |
2591 if(pos != NULL) { | |
2592 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2593 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2594 } |
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2595 #if !INCLUDE_JVMTI |
0 | 2596 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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2597 jio_fprintf(defaultStream::error_stream(), |
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2598 "Profiling and debugging agents are not supported in this VM\n"); |
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2599 return JNI_ERR; |
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|
2600 } |
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2601 #endif // !INCLUDE_JVMTI |
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2602 add_init_library(name, options); |
0 | 2603 } |
2604 // -agentlib and -agentpath | |
2605 } else if (match_option(option, "-agentlib:", &tail) || | |
2606 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2607 if(tail != NULL) { | |
2608 const char* pos = strchr(tail, '='); | |
2609 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2610 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2611 name[len] = '\0'; |
2612 | |
2613 char *options = NULL; | |
2614 if(pos != NULL) { | |
6197 | 2615 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2616 } |
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2617 #if !INCLUDE_JVMTI |
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2618 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
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2619 jio_fprintf(defaultStream::error_stream(), |
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2620 "Profiling and debugging agents are not supported in this VM\n"); |
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2621 return JNI_ERR; |
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|
2622 } |
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2623 #endif // !INCLUDE_JVMTI |
0 | 2624 add_init_agent(name, options, is_absolute_path); |
2625 } | |
2626 // -javaagent | |
2627 } else if (match_option(option, "-javaagent:", &tail)) { | |
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2628 #if !INCLUDE_JVMTI |
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2629 jio_fprintf(defaultStream::error_stream(), |
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2630 "Instrumentation agents are not supported in this VM\n"); |
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2631 return JNI_ERR; |
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2632 #else |
0 | 2633 if(tail != NULL) { |
6197 | 2634 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2635 add_init_agent("instrument", options, false); |
2636 } | |
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2637 #endif // !INCLUDE_JVMTI |
0 | 2638 // -Xnoclassgc |
2639 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2640 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2641 // -Xincgc: i-CMS | |
2642 } else if (match_option(option, "-Xincgc", &tail)) { | |
2643 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2644 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2645 // -Xnoincgc: no i-CMS | |
2646 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2647 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2648 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2649 // -Xconcgc | |
2650 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2651 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2652 // -Xnoconcgc | |
2653 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2654 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2655 // -Xbatch | |
2656 } else if (match_option(option, "-Xbatch", &tail)) { | |
2657 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2658 // -Xmn for compatibility with other JVM vendors | |
2659 } else if (match_option(option, "-Xmn", &tail)) { | |
12831 | 2660 julong long_initial_young_size = 0; |
2661 ArgsRange errcode = parse_memory_size(tail, &long_initial_young_size, 1); | |
0 | 2662 if (errcode != arg_in_range) { |
2663 jio_fprintf(defaultStream::error_stream(), | |
12831 | 2664 "Invalid initial young generation size: %s\n", option->optionString); |
0 | 2665 describe_range_error(errcode); |
2666 return JNI_EINVAL; | |
2667 } | |
12831 | 2668 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_young_size); |
2669 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_young_size); | |
0 | 2670 // -Xms |
2671 } else if (match_option(option, "-Xms", &tail)) { | |
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|
2672 julong long_initial_heap_size = 0; |
10241
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10240
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|
2673 // an initial heap size of 0 means automatically determine |
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|
2674 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2675 if (errcode != arg_in_range) { |
2676 jio_fprintf(defaultStream::error_stream(), | |
2677 "Invalid initial heap size: %s\n", option->optionString); | |
2678 describe_range_error(errcode); | |
2679 return JNI_EINVAL; | |
2680 } | |
1064 | 2681 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2682 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2683 set_min_heap_size(InitialHeapSize); |
0 | 2684 // -Xmx |
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|
2685 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
489
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483
diff
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|
2686 julong long_max_heap_size = 0; |
0 | 2687 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2688 if (errcode != arg_in_range) { | |
2689 jio_fprintf(defaultStream::error_stream(), | |
2690 "Invalid maximum heap size: %s\n", option->optionString); | |
2691 describe_range_error(errcode); | |
2692 return JNI_EINVAL; | |
2693 } | |
1064 | 2694 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2695 // Xmaxf |
2696 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2697 int maxf = (int)(atof(tail) * 100); | |
2698 if (maxf < 0 || maxf > 100) { | |
2699 jio_fprintf(defaultStream::error_stream(), | |
2700 "Bad max heap free percentage size: %s\n", | |
2701 option->optionString); | |
2702 return JNI_EINVAL; | |
2703 } else { | |
2704 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2705 } | |
2706 // Xminf | |
2707 } else if (match_option(option, "-Xminf", &tail)) { | |
2708 int minf = (int)(atof(tail) * 100); | |
2709 if (minf < 0 || minf > 100) { | |
2710 jio_fprintf(defaultStream::error_stream(), | |
2711 "Bad min heap free percentage size: %s\n", | |
2712 option->optionString); | |
2713 return JNI_EINVAL; | |
2714 } else { | |
2715 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2716 } | |
2717 // -Xss | |
2718 } else if (match_option(option, "-Xss", &tail)) { | |
489
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|
2719 julong long_ThreadStackSize = 0; |
0 | 2720 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2721 if (errcode != arg_in_range) { | |
2722 jio_fprintf(defaultStream::error_stream(), | |
2723 "Invalid thread stack size: %s\n", option->optionString); | |
2724 describe_range_error(errcode); | |
2725 return JNI_EINVAL; | |
2726 } | |
2727 // Internally track ThreadStackSize in units of 1024 bytes. | |
2728 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2729 round_to((int)long_ThreadStackSize, K) / K); | |
2730 // -Xoss | |
2731 } else if (match_option(option, "-Xoss", &tail)) { | |
2732 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
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11006
diff
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|
2733 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
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11006
diff
changeset
|
2734 julong long_CodeCacheExpansionSize = 0; |
738e04fb1232
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anoll
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11006
diff
changeset
|
2735 ArgsRange errcode = parse_memory_size(tail, &long_CodeCacheExpansionSize, os::vm_page_size()); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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parents:
11006
diff
changeset
|
2736 if (errcode != arg_in_range) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2737 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2738 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
738e04fb1232
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diff
changeset
|
2739 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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|
2740 return JNI_EINVAL; |
738e04fb1232
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diff
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|
2741 } |
738e04fb1232
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anoll
parents:
11006
diff
changeset
|
2742 FLAG_SET_CMDLINE(uintx, CodeCacheExpansionSize, (uintx)long_CodeCacheExpansionSize); |
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
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2002
diff
changeset
|
2743 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
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2002
diff
changeset
|
2744 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2745 julong long_ReservedCodeCacheSize = 0; |
11079
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anoll
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diff
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|
2746 |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2747 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2748 if (errcode != arg_in_range) { |
2749 jio_fprintf(defaultStream::error_stream(), | |
10392
c07dd9be16e8
8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
anoll
parents:
10319
diff
changeset
|
2750 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2751 return JNI_EINVAL; |
2752 } | |
2753 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
10319
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2754 //-XX:IncreaseFirstTierCompileThresholdAt= |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2755 } else if (match_option(option, "-XX:IncreaseFirstTierCompileThresholdAt=", &tail)) { |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2756 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2757 if (!parse_uintx(tail, &uint_IncreaseFirstTierCompileThresholdAt, 0) || uint_IncreaseFirstTierCompileThresholdAt > 99) { |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2758 jio_fprintf(defaultStream::error_stream(), |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2759 "Invalid value for IncreaseFirstTierCompileThresholdAt: %s. Should be between 0 and 99.\n", |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2760 option->optionString); |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2761 return JNI_EINVAL; |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2762 } |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2763 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2764 // -green |
2765 } else if (match_option(option, "-green", &tail)) { | |
2766 jio_fprintf(defaultStream::error_stream(), | |
2767 "Green threads support not available\n"); | |
2768 return JNI_EINVAL; | |
2769 // -native | |
2770 } else if (match_option(option, "-native", &tail)) { | |
2771 // HotSpot always uses native threads, ignore silently for compatibility | |
2772 // -Xsqnopause | |
2773 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2774 // EVM option, ignore silently for compatibility | |
2775 // -Xrs | |
2776 } else if (match_option(option, "-Xrs", &tail)) { | |
2777 // Classic/EVM option, new functionality | |
2778 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2779 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2780 // change default internal VM signals used - lower case for back compat | |
2781 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2782 // -Xoptimize | |
2783 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2784 // EVM option, ignore silently for compatibility | |
2785 // -Xprof | |
2786 } else if (match_option(option, "-Xprof", &tail)) { | |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2787 #if INCLUDE_FPROF |
0 | 2788 _has_profile = true; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2789 #else // INCLUDE_FPROF |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2790 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2791 "Flat profiling is not supported in this VM.\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2792 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
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parents:
6818
diff
changeset
|
2793 #endif // INCLUDE_FPROF |
0 | 2794 // -Xconcurrentio |
2795 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2796 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2797 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2798 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2799 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2800 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2801 | |
2802 // -Xinternalversion | |
2803 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2804 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2805 VM_Version::internal_vm_info_string()); | |
2806 vm_exit(0); | |
2807 #ifndef PRODUCT | |
2808 // -Xprintflags | |
2809 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2810 CommandLineFlags::printFlags(tty, false); |
0 | 2811 vm_exit(0); |
2812 #endif | |
2813 // -D | |
2814 } else if (match_option(option, "-D", &tail)) { | |
2815 if (!add_property(tail)) { | |
2816 return JNI_ENOMEM; | |
2817 } | |
2818 // Out of the box management support | |
2819 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2820 #if INCLUDE_MANAGEMENT |
0 | 2821 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2822 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2823 jio_fprintf(defaultStream::output_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2824 "-Dcom.sun.management is not supported in this VM.\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
2825 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
2826 #endif |
0 | 2827 } |
2828 // -Xint | |
2829 } else if (match_option(option, "-Xint", &tail)) { | |
2830 set_mode_flags(_int); | |
2831 // -Xmixed | |
2832 } else if (match_option(option, "-Xmixed", &tail)) { | |
2833 set_mode_flags(_mixed); | |
2834 // -Xcomp | |
2835 } else if (match_option(option, "-Xcomp", &tail)) { | |
2836 // for testing the compiler; turn off all flags that inhibit compilation | |
2837 set_mode_flags(_comp); | |
2838 // -Xshare:dump | |
2839 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2840 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2841 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2842 // -Xshare:on | |
2843 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2844 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2845 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2846 // -Xshare:auto | |
2847 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2848 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2849 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2850 // -Xshare:off | |
2851 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2852 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2853 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2854 // -Xverify | |
2855 } else if (match_option(option, "-Xverify", &tail)) { | |
2856 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2857 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2858 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2859 } else if (strcmp(tail, ":remote") == 0) { | |
2860 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2861 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2862 } else if (strcmp(tail, ":none") == 0) { | |
2863 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2864 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2865 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2866 return JNI_EINVAL; | |
2867 } | |
2868 // -Xdebug | |
2869 } else if (match_option(option, "-Xdebug", &tail)) { | |
2870 // note this flag has been used, then ignore | |
2871 set_xdebug_mode(true); | |
2872 // -Xnoagent | |
2873 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2874 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2875 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2876 // Bind user level threads to kernel threads (Solaris only) | |
2877 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2878 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2879 // Redirect GC output to the file. -Xloggc:<filename> | |
2880 // ostream_init_log(), when called will use this filename | |
2881 // to initialize a fileStream. | |
2882 _gc_log_filename = strdup(tail); | |
12215 | 2883 if (!is_filename_valid(_gc_log_filename)) { |
2884 jio_fprintf(defaultStream::output_stream(), | |
2885 "Invalid file name for use with -Xloggc: Filename can only contain the " | |
2886 "characters [A-Z][a-z][0-9]-_.%%[p|t] but it has been %s\n" | |
2887 "Note %%p or %%t can only be used once\n", _gc_log_filename); | |
2888 return JNI_EINVAL; | |
2889 } | |
0 | 2890 FLAG_SET_CMDLINE(bool, PrintGC, true); |
2891 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2892 | |
2893 // JNI hooks | |
2894 } else if (match_option(option, "-Xcheck", &tail)) { | |
2895 if (!strcmp(tail, ":jni")) { | |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
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6818
diff
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|
2896 #if !INCLUDE_JNI_CHECK |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2897 warning("JNI CHECKING is not supported in this VM"); |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2898 #else |
0 | 2899 CheckJNICalls = true; |
6854
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6818
diff
changeset
|
2900 #endif // INCLUDE_JNI_CHECK |
0 | 2901 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2902 "check")) { | |
2903 return JNI_EINVAL; | |
2904 } | |
2905 } else if (match_option(option, "vfprintf", &tail)) { | |
2906 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2907 } else if (match_option(option, "exit", &tail)) { | |
2908 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2909 } else if (match_option(option, "abort", &tail)) { | |
2910 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2911 // -XX:+AggressiveHeap | |
2912 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2913 | |
2914 // This option inspects the machine and attempts to set various | |
2915 // parameters to be optimal for long-running, memory allocation | |
2916 // intensive jobs. It is intended for machines with large | |
2917 // amounts of cpu and memory. | |
2918 | |
2919 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2920 // VM, but we may not be able to represent the total physical memory | |
2921 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2922 // Thus, we need to make sure we're using a julong for intermediate | |
2923 // calculations. | |
2924 julong initHeapSize; | |
2925 julong total_memory = os::physical_memory(); | |
2926 | |
2927 if (total_memory < (julong)256*M) { | |
2928 jio_fprintf(defaultStream::error_stream(), | |
2929 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2930 vm_exit(1); | |
2931 } | |
2932 | |
2933 // The heap size is half of available memory, or (at most) | |
2934 // all of possible memory less 160mb (leaving room for the OS | |
2935 // when using ISM). This is the maximum; because adaptive sizing | |
2936 // is turned on below, the actual space used may be smaller. | |
2937 | |
2938 initHeapSize = MIN2(total_memory / (julong)2, | |
2939 total_memory - (julong)160*M); | |
2940 | |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8824
diff
changeset
|
2941 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2942 |
2943 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2944 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2945 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2946 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2947 set_min_heap_size(initHeapSize); |
0 | 2948 } |
2949 if (FLAG_IS_DEFAULT(NewSize)) { | |
2950 // Make the young generation 3/8ths of the total heap. | |
2951 FLAG_SET_CMDLINE(uintx, NewSize, | |
2952 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2953 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2954 } | |
2955 | |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
2956 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 2957 FLAG_SET_DEFAULT(UseLargePages, true); |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
2958 #endif |
0 | 2959 |
2960 // Increase some data structure sizes for efficiency | |
2961 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2962 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2963 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2964 | |
2965 // See the OldPLABSize comment below, but replace 'after promotion' | |
2966 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2967 // space per-gc-thread buffers. The default is 4kw. | |
2968 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2969 | |
2970 // OldPLABSize is the size of the buffers in the old gen that | |
2971 // UseParallelGC uses to promote live data that doesn't fit in the | |
2972 // survivor spaces. At any given time, there's one for each gc thread. | |
2973 // The default size is 1kw. These buffers are rarely used, since the | |
2974 // survivor spaces are usually big enough. For specjbb, however, there | |
2975 // are occasions when there's lots of live data in the young gen | |
2976 // and we end up promoting some of it. We don't have a definite | |
2977 // explanation for why bumping OldPLABSize helps, but the theory | |
2978 // is that a bigger PLAB results in retaining something like the | |
2979 // original allocation order after promotion, which improves mutator | |
2980 // locality. A minor effect may be that larger PLABs reduce the | |
2981 // number of PLAB allocation events during gc. The value of 8kw | |
2982 // was arrived at by experimenting with specjbb. | |
2983 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2984 | |
2985 // Enable parallel GC and adaptive generation sizing | |
2986 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
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2987 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2988 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2989 |
2990 // Encourage steady state memory management | |
2991 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2992 | |
2993 // This appears to improve mutator locality | |
2994 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2995 | |
2996 // Get around early Solaris scheduling bug | |
2997 // (affinity vs other jobs on system) | |
2998 // but disallow DR and offlining (5008695). | |
2999 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
3000 | |
3001 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
3002 // The last option must always win. | |
3003 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
3004 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
3005 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
3006 // The last option must always win. | |
3007 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
3008 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
3009 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
3010 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
3011 jio_fprintf(defaultStream::error_stream(), | |
3012 "Please use CMSClassUnloadingEnabled in place of " | |
3013 "CMSPermGenSweepingEnabled in the future\n"); | |
3014 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
3015 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
3016 jio_fprintf(defaultStream::error_stream(), | |
3017 "Please use -XX:+UseGCOverheadLimit in place of " | |
3018 "-XX:+UseGCTimeLimit in the future\n"); | |
3019 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
3020 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
3021 jio_fprintf(defaultStream::error_stream(), | |
3022 "Please use -XX:-UseGCOverheadLimit in place of " | |
3023 "-XX:-UseGCTimeLimit in the future\n"); | |
3024 // The TLE options are for compatibility with 1.3 and will be | |
3025 // removed without notice in a future release. These options | |
3026 // are not to be documented. | |
3027 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
3028 // No longer used. | |
3029 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
3030 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
3031 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
3032 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
3033 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
3034 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
3035 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
3036 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
3037 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
3038 // No longer used. | |
3039 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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3040 julong long_tlab_size = 0; |
0 | 3041 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
3042 if (errcode != arg_in_range) { | |
3043 jio_fprintf(defaultStream::error_stream(), | |
3044 "Invalid TLAB size: %s\n", option->optionString); | |
3045 describe_range_error(errcode); | |
3046 return JNI_EINVAL; | |
3047 } | |
3048 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
3049 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
3050 // No longer used. | |
3051 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
3052 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
3053 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
3054 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
3055 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
3056 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
3057 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
3058 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
3059 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
3060 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
3061 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 3062 #if defined(DTRACE_ENABLED) |
0 | 3063 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
3064 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
3065 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
3066 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 3067 #else // defined(DTRACE_ENABLED) |
0 | 3068 jio_fprintf(defaultStream::error_stream(), |
4006 | 3069 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 3070 return JNI_EINVAL; |
4006 | 3071 #endif // defined(DTRACE_ENABLED) |
0 | 3072 #ifdef ASSERT |
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|
3073 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 3074 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
3075 // disable scavenge before parallel mark-compact | |
3076 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3077 #endif | |
1145
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|
3078 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 3079 julong cms_blocks_to_claim = (julong)atol(tail); |
3080 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
3081 jio_fprintf(defaultStream::error_stream(), | |
1145
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3082 "Please use -XX:OldPLABSize in place of " |
e018e6884bd8
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|
3083 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
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|
3084 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
e018e6884bd8
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|
3085 julong cms_blocks_to_claim = (julong)atol(tail); |
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|
3086 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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|
3087 jio_fprintf(defaultStream::error_stream(), |
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|
3088 "Please use -XX:OldPLABSize in place of " |
0 | 3089 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
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|
3090 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
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|
3091 julong old_plab_size = 0; |
0 | 3092 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
3093 if (errcode != arg_in_range) { | |
3094 jio_fprintf(defaultStream::error_stream(), | |
3095 "Invalid old PLAB size: %s\n", option->optionString); | |
3096 describe_range_error(errcode); | |
3097 return JNI_EINVAL; | |
3098 } | |
489
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|
3099 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 3100 jio_fprintf(defaultStream::error_stream(), |
3101 "Please use -XX:OldPLABSize in place of " | |
3102 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
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|
3103 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
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|
3104 julong young_plab_size = 0; |
0 | 3105 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3106 if (errcode != arg_in_range) { | |
3107 jio_fprintf(defaultStream::error_stream(), | |
3108 "Invalid young PLAB size: %s\n", option->optionString); | |
3109 describe_range_error(errcode); | |
3110 return JNI_EINVAL; | |
3111 } | |
489
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|
3112 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3113 jio_fprintf(defaultStream::error_stream(), |
3114 "Please use -XX:YoungPLABSize in place of " | |
3115 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3116 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3117 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3118 julong stack_size = 0; | |
3119 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3120 if (errcode != arg_in_range) { | |
3121 jio_fprintf(defaultStream::error_stream(), | |
3122 "Invalid mark stack size: %s\n", option->optionString); | |
3123 describe_range_error(errcode); | |
3124 return JNI_EINVAL; | |
3125 } | |
3126 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3127 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3128 julong max_stack_size = 0; | |
3129 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3130 if (errcode != arg_in_range) { | |
3131 jio_fprintf(defaultStream::error_stream(), | |
3132 "Invalid maximum mark stack size: %s\n", | |
3133 option->optionString); | |
3134 describe_range_error(errcode); | |
3135 return JNI_EINVAL; | |
3136 } | |
3137 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3138 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3139 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3140 uintx conc_threads = 0; | |
3141 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3142 jio_fprintf(defaultStream::error_stream(), | |
3143 "Invalid concurrent threads: %s\n", option->optionString); | |
3144 return JNI_EINVAL; | |
3145 } | |
3146 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
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6198
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|
3147 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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changeset
|
3148 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
3149 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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|
3150 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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diff
changeset
|
3151 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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diff
changeset
|
3152 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
3153 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
3154 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
3155 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
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6198
diff
changeset
|
3156 } |
3f1ab0c19c30
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dholmes
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diff
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|
3157 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
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6857
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changeset
|
3158 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
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changeset
|
3159 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
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changeset
|
3160 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
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|
3161 warning("-XX:+UseVMInterruptibleIO is obsolete and will be removed in a future release."); |
85916677fc22
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|
3162 FLAG_SET_CMDLINE(bool, UseVMInterruptibleIO, true); |
8081
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8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
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|
3163 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
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3164 } else if (match_option(option, "-XX:+ManagementServer", &tail)) { |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
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|
3165 jio_fprintf(defaultStream::error_stream(), |
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3166 "ManagementServer is not supported in this VM.\n"); |
fad90b102190
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|
3167 return JNI_ERR; |
8081
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3168 #endif // INCLUDE_MANAGEMENT |
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3169 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3170 // Skip -XX:Flags= since that case has already been handled |
3171 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3172 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3173 return JNI_EINVAL; | |
3174 } | |
3175 } | |
3176 // Unknown option | |
3177 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3178 return JNI_ERR; | |
3179 } | |
3180 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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3349
diff
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|
3181 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
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|
3182 // Change the default value for flags which have different default values |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
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|
3183 // when working with older JDKs. |
1679
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|
3184 #ifdef LINUX |
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|
3185 if (JDK_Version::current().compare_major(6) <= 0 && |
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|
3186 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
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|
3187 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
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|
3188 } |
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|
3189 #endif // LINUX |
0 | 3190 return JNI_OK; |
3191 } | |
3192 | |
3193 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3194 // This must be done after all -D arguments have been processed. | |
3195 scp_p->expand_endorsed(); | |
3196 | |
3197 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3198 // Assemble the bootclasspath elements into the final path. | |
3199 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3200 } | |
3201 | |
3202 // This must be done after all arguments have been processed. | |
3203 // java_compiler() true means set to "NONE" or empty. | |
3204 if (java_compiler() && !xdebug_mode()) { | |
3205 // For backwards compatibility, we switch to interpreted mode if | |
3206 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3207 // not specified. | |
3208 set_mode_flags(_int); | |
3209 } | |
3210 if (CompileThreshold == 0) { | |
3211 set_mode_flags(_int); | |
3212 } | |
3213 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3214 // eventually fix up InitialTenuringThreshold if only MaxTenuringThreshold is set |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
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changeset
|
3215 if (FLAG_IS_DEFAULT(InitialTenuringThreshold) && (InitialTenuringThreshold > MaxTenuringThreshold)) { |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
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changeset
|
3216 FLAG_SET_ERGO(uintx, InitialTenuringThreshold, MaxTenuringThreshold); |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
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|
3217 } |
acac2b03a07f
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|
3218 |
0 | 3219 #ifndef COMPILER2 |
3220 // Don't degrade server performance for footprint | |
3221 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3222 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3223 // No need for large granularity pages w/small heaps. | |
3224 // Note that large pages are enabled/disabled for both the | |
3225 // Java heap and the code cache. | |
3226 FLAG_SET_DEFAULT(UseLargePages, false); | |
3227 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
changeset
|
3228 |
0 | 3229 #else |
3230 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3231 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3232 } | |
3233 #endif | |
3234 | |
11999
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3235 #ifndef TIERED |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3236 // Tiered compilation is undefined. |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3237 UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation"); |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3238 #endif |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3239 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3240 // 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
|
3241 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3242 // 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
|
3243 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3244 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3245 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3246 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3247 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3248 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3249 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3250 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3251 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3252 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3253 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3254 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3255 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3256 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3257 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3258 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3259 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3260 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3261 |
0 | 3262 if (!check_vm_args_consistency()) { |
3263 return JNI_ERR; | |
3264 } | |
3265 | |
3266 return JNI_OK; | |
3267 } | |
3268 | |
3269 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3270 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3271 scp_assembly_required_p); | |
3272 } | |
3273 | |
3274 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3275 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3276 scp_assembly_required_p); | |
3277 } | |
3278 | |
3279 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3280 const int N_MAX_OPTIONS = 64; | |
3281 const int OPTION_BUFFER_SIZE = 1024; | |
3282 char buffer[OPTION_BUFFER_SIZE]; | |
3283 | |
3284 // The variable will be ignored if it exceeds the length of the buffer. | |
3285 // Don't check this variable if user has special privileges | |
3286 // (e.g. unix su command). | |
3287 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3288 !os::have_special_privileges()) { | |
3289 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3290 jio_fprintf(defaultStream::error_stream(), | |
3291 "Picked up %s: %s\n", name, buffer); | |
3292 char* rd = buffer; // pointer to the input string (rd) | |
3293 int i; | |
3294 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3295 while (isspace(*rd)) rd++; // skip whitespace | |
3296 if (*rd == 0) break; // we re done when the input string is read completely | |
3297 | |
3298 // The output, option string, overwrites the input string. | |
3299 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3300 // input string (rd). | |
3301 char* wrt = rd; | |
3302 | |
3303 options[i++].optionString = wrt; // Fill in option | |
3304 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3305 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3306 int quote = *rd; // matching quote to look for | |
3307 rd++; // don't copy open quote | |
3308 while (*rd != quote) { // include everything (even spaces) up until quote | |
3309 if (*rd == 0) { // string termination means unmatched string | |
3310 jio_fprintf(defaultStream::error_stream(), | |
3311 "Unmatched quote in %s\n", name); | |
3312 return JNI_ERR; | |
3313 } | |
3314 *wrt++ = *rd++; // copy to option string | |
3315 } | |
3316 rd++; // don't copy close quote | |
3317 } else { | |
3318 *wrt++ = *rd++; // copy to option string | |
3319 } | |
3320 } | |
3321 // Need to check if we're done before writing a NULL, | |
3322 // because the write could be to the byte that rd is pointing to. | |
3323 if (*rd++ == 0) { | |
3324 *wrt = 0; | |
3325 break; | |
3326 } | |
3327 *wrt = 0; // Zero terminate option | |
3328 } | |
3329 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3330 JavaVMInitArgs vm_args; | |
3331 vm_args.version = JNI_VERSION_1_2; | |
3332 vm_args.options = options; | |
3333 vm_args.nOptions = i; | |
564 | 3334 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3335 |
3336 if (PrintVMOptions) { | |
3337 const char* tail; | |
3338 for (int i = 0; i < vm_args.nOptions; i++) { | |
3339 const JavaVMOption *option = vm_args.options + i; | |
3340 if (match_option(option, "-XX:", &tail)) { | |
3341 logOption(tail); | |
3342 } | |
3343 } | |
3344 } | |
3345 | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3346 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, Flag::ENVIRON_VAR)); |
0 | 3347 } |
3348 return JNI_OK; | |
3349 } | |
3350 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3351 void Arguments::set_shared_spaces_flags() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3352 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3353 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3354 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
|
3355 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3356 UseSharedSpaces = false; |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3357 #ifdef _LP64 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3358 if (!UseCompressedOops || !UseCompressedClassPointers) { |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3359 vm_exit_during_initialization( |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3360 "Cannot dump shared archive when UseCompressedOops or UseCompressedClassPointers is off.", NULL); |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3361 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3362 } else { |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3363 // UseCompressedOops and UseCompressedClassPointers must be on for UseSharedSpaces. |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3364 if (!UseCompressedOops || !UseCompressedClassPointers) { |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3365 no_shared_spaces(); |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3366 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3367 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3368 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3369 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3370 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3371 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3372 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3373 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3374 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3375 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3376 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3377 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3378 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3379 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3380 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3381 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3382 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3383 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3384 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3385 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3386 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3387 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3388 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3389 os::jvm_path(jvm_path, sizeof(jvm_path)); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3390 char *end = strrchr(jvm_path, *os::file_separator()); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3391 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3392 size_t jvm_path_len = strlen(jvm_path); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3393 size_t file_sep_len = strlen(os::file_separator()); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3394 shared_archive_path = NEW_C_HEAP_ARRAY(char, jvm_path_len + |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3395 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3396 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3397 strncpy(shared_archive_path, jvm_path, jvm_path_len + 1); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3398 strncat(shared_archive_path, os::file_separator(), file_sep_len); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3399 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3400 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3401 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3402 shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(SharedArchiveFile) + 1, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3403 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3404 strncpy(shared_archive_path, SharedArchiveFile, strlen(SharedArchiveFile) + 1); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3405 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3406 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3407 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3408 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3409 |
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3410 #ifndef PRODUCT |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3411 // Determine whether LogVMOutput should be implicitly turned on. |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3412 static bool use_vm_log() { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3413 if (LogCompilation || !FLAG_IS_DEFAULT(LogFile) || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3414 PrintCompilation || PrintInlining || PrintDependencies || PrintNativeNMethods || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3415 PrintDebugInfo || PrintRelocations || PrintNMethods || PrintExceptionHandlers || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3416 PrintAssembly || TraceDeoptimization || TraceDependencies || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3417 (VerifyDependencies && FLAG_IS_CMDLINE(VerifyDependencies))) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3418 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3419 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3420 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3421 #ifdef COMPILER1 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3422 if (PrintC1Statistics) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3423 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3424 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3425 #endif // COMPILER1 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3426 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3427 #ifdef COMPILER2 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3428 if (PrintOptoAssembly || PrintOptoStatistics) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3429 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3430 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3431 #endif // COMPILER2 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3432 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3433 return false; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3434 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3435 #endif // PRODUCT |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3436 |
0 | 3437 // Parse entry point called from JNI_CreateJavaVM |
3438 | |
3439 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3440 | |
3441 // Remaining part of option string | |
3442 const char* tail; | |
3443 | |
3444 // 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
|
3445 const char* hotspotrc = ".hotspotrc"; |
0 | 3446 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
|
3447 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
|
3448 |
564 | 3449 const char* flags_file; |
0 | 3450 int index; |
3451 for (index = 0; index < args->nOptions; index++) { | |
3452 const JavaVMOption *option = args->options + index; | |
3453 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3454 flags_file = tail; |
0 | 3455 settings_file_specified = true; |
3456 } | |
3457 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3458 PrintVMOptions = true; | |
3459 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3460 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
|
3461 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3462 } |
564 | 3463 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3464 IgnoreUnrecognizedVMOptions = true; | |
3465 } | |
3466 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3467 IgnoreUnrecognizedVMOptions = false; | |
3468 } | |
1150 | 3469 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3470 CommandLineFlags::printFlags(tty, false); |
1150 | 3471 vm_exit(0); |
3472 } | |
6197 | 3473 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3474 #if INCLUDE_NMT |
6197 | 3475 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3476 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3477 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3478 "Native Memory Tracking is not supported in this VM\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3479 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3480 #endif |
6197 | 3481 } |
3482 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3483 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3484 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3485 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3486 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3487 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3488 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3489 #endif |
564 | 3490 } |
3491 | |
3492 if (IgnoreUnrecognizedVMOptions) { | |
3493 // uncast const to modify the flag args->ignoreUnrecognized | |
3494 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3495 } | |
3496 | |
3497 // Parse specified settings file | |
3498 if (settings_file_specified) { | |
3499 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3500 return JNI_EINVAL; | |
3501 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3502 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3503 #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
|
3504 // Parse default .hotspotrc settings file |
0 | 3505 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3506 return JNI_EINVAL; | |
3507 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3508 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3509 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
|
3510 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
|
3511 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
|
3512 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3513 #endif |
0 | 3514 } |
3515 | |
3516 if (PrintVMOptions) { | |
3517 for (index = 0; index < args->nOptions; index++) { | |
3518 const JavaVMOption *option = args->options + index; | |
3519 if (match_option(option, "-XX:", &tail)) { | |
3520 logOption(tail); | |
3521 } | |
3522 } | |
3523 } | |
3524 | |
3525 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3526 jint result = parse_vm_init_args(args); | |
3527 if (result != JNI_OK) { | |
3528 return result; | |
3529 } | |
3530 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3531 // Call get_shared_archive_path() here, after possible SharedArchiveFile option got parsed. |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3532 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3533 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3534 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3535 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3536 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3537 // 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
|
3538 // 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
|
3539 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
|
3540 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
|
3541 "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
|
3542 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3543 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3544 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3545 #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
|
3546 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3547 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3548 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3549 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3550 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3551 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3552 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3553 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3554 |
0 | 3555 #ifndef PRODUCT |
3556 if (TraceBytecodesAt != 0) { | |
3557 TraceBytecodes = true; | |
3558 } | |
3559 if (CountCompiledCalls) { | |
3560 if (UseCounterDecay) { | |
3561 warning("UseCounterDecay disabled because CountCalls is set"); | |
3562 UseCounterDecay = false; | |
3563 } | |
3564 } | |
3565 #endif // PRODUCT | |
3566 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3567 // 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
|
3568 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3569 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3570 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3571 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
|
3572 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3573 EnableInvokeDynamic = false; |
710 | 3574 } |
3575 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3576 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3577 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3578 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3579 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
|
3580 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3581 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3582 } |
710 | 3583 |
0 | 3584 if (PrintGCDetails) { |
3585 // Turn on -verbose:gc options as well | |
3586 PrintGC = true; | |
3587 } | |
3588 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3589 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3590 // 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
|
3591 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3592 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3593 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3594 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3595 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3596 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3597 // 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
|
3598 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
|
3599 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3600 #if !INCLUDE_ALL_GCS |
1064 | 3601 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3602 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3603 #if !INCLUDE_CDS |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3604 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3605 jio_fprintf(defaultStream::error_stream(), |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3606 "Shared spaces are not supported in this VM\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3607 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3608 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3609 if ((UseSharedSpaces && FLAG_IS_CMDLINE(UseSharedSpaces)) || PrintSharedSpaces) { |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3610 warning("Shared spaces are not supported in this VM"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3611 FLAG_SET_DEFAULT(UseSharedSpaces, false); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3612 FLAG_SET_DEFAULT(PrintSharedSpaces, false); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3613 } |
0 | 3614 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3615 #endif // INCLUDE_CDS |
0 | 3616 |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3617 return JNI_OK; |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3618 } |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3619 |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3620 jint Arguments::apply_ergo() { |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3621 |
0 | 3622 // Set flags based on ergonomics. |
3623 set_ergonomics_flags(); | |
3624 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3625 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3626 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3627 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3628 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3629 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3630 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3631 |
1783 | 3632 if (TieredCompilation) { |
3633 set_tiered_flags(); | |
3634 } else { | |
3635 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3636 if (CompilationPolicyChoice >= 2) { | |
3637 vm_exit_during_initialization( | |
3638 "Incompatible compilation policy selected", NULL); | |
3639 } | |
3640 } | |
3641 | |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3642 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3643 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3644 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3645 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3646 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3647 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3648 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3649 } 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
|
3650 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3651 } 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
|
3652 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3653 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3654 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3655 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3656 check_deprecated_gcs(); |
8734 | 3657 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3658 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3659 if (FLAG_IS_DEFAULT(ParallelGCThreads) && ParallelGCThreads == 1) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3660 warning("If the number of processors is expected to increase from one, then" |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3661 " you should configure the number of parallel GC threads appropriately" |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3662 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3663 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3664 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3665 #else // INCLUDE_ALL_GCS |
0 | 3666 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3667 #endif // INCLUDE_ALL_GCS |
0 | 3668 |
12838
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3669 // Initialize Metaspace flags and alignments. |
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3670 Metaspace::ergo_initialize(); |
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3671 |
0 | 3672 // Set bytecode rewriting flags |
3673 set_bytecode_flags(); | |
3674 | |
3675 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3676 set_aggressive_opts_flags(); | |
3677 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3678 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3679 // 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
|
3680 // biased locking. |
2331 | 3681 if (UseHeavyMonitors |
3682 #ifdef COMPILER1 | |
3683 || !UseFastLocking | |
3684 #endif // COMPILER1 | |
3685 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3686 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3687 // 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
|
3688 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3689 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3690 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3691 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3692 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3693 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3694 |
0 | 3695 #ifdef CC_INTERP |
1131 | 3696 // Clear flags not supported by the C++ interpreter |
3697 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3698 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3699 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3700 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedClassPointers, false)); |
1131 | 3701 #endif // CC_INTERP |
3702 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3703 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3704 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3705 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3706 } |
4777 | 3707 if (!EliminateLocks) { |
3708 EliminateNestedLocks = false; | |
3709 } | |
7473 | 3710 if (!Inline) { |
3711 IncrementalInline = false; | |
3712 } | |
3713 #ifndef PRODUCT | |
3714 if (!IncrementalInline) { | |
3715 AlwaysIncrementalInline = false; | |
3716 } | |
3717 #endif | |
3718 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3719 // incremental inlining: bump MaxNodeLimit | |
3720 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3721 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3722 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3723 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3724 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3725 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
|
3726 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3727 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3728 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3729 if (FLAG_IS_CMDLINE(CompressedClassSpaceSize) && !UseCompressedClassPointers) { |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3730 warning("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used"); |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3731 } |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3732 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3733 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3734 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3735 // 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
|
3736 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3737 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3738 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3739 } |
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3740 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3741 if (!LogVMOutput && FLAG_IS_DEFAULT(LogVMOutput)) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3742 if (use_vm_log()) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3743 LogVMOutput = true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3744 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3745 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3746 #endif // PRODUCT |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3747 |
0 | 3748 if (PrintCommandLineFlags) { |
4773 | 3749 CommandLineFlags::printSetFlags(tty); |
0 | 3750 } |
3751 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3752 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3753 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3754 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3755 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3756 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3757 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3758 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3759 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3760 // 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
|
3761 // 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
|
3762 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
|
3763 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3764 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3765 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3766 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3767 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3768 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3769 |
0 | 3770 return JNI_OK; |
3771 } | |
3772 | |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3773 jint Arguments::adjust_after_os() { |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3774 #if INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3775 if (UseParallelGC || UseParallelOldGC) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3776 if (UseNUMA) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3777 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3778 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3779 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3780 // 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
|
3781 // 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
|
3782 UseNUMAInterleaving = true; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3783 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3784 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3785 #endif // INCLUDE_ALL_GCS |
7177
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3786 return JNI_OK; |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
|
3787 } |
53715fb1597d
7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
parents:
6982
diff
changeset
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3788 |
0 | 3789 int Arguments::PropertyList_count(SystemProperty* pl) { |
3790 int count = 0; | |
3791 while(pl != NULL) { | |
3792 count++; | |
3793 pl = pl->next(); | |
3794 } | |
3795 return count; | |
3796 } | |
3797 | |
3798 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3799 assert(key != NULL, "just checking"); | |
3800 SystemProperty* prop; | |
3801 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3802 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3803 } | |
3804 return NULL; | |
3805 } | |
3806 | |
3807 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3808 int count = 0; | |
3809 const char* ret_val = NULL; | |
3810 | |
3811 while(pl != NULL) { | |
3812 if(count >= index) { | |
3813 ret_val = pl->key(); | |
3814 break; | |
3815 } | |
3816 count++; | |
3817 pl = pl->next(); | |
3818 } | |
3819 | |
3820 return ret_val; | |
3821 } | |
3822 | |
3823 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3824 int count = 0; | |
3825 char* ret_val = NULL; | |
3826 | |
3827 while(pl != NULL) { | |
3828 if(count >= index) { | |
3829 ret_val = pl->value(); | |
3830 break; | |
3831 } | |
3832 count++; | |
3833 pl = pl->next(); | |
3834 } | |
3835 | |
3836 return ret_val; | |
3837 } | |
3838 | |
3839 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3840 SystemProperty* p = *plist; | |
3841 if (p == NULL) { | |
3842 *plist = new_p; | |
3843 } else { | |
3844 while (p->next() != NULL) { | |
3845 p = p->next(); | |
3846 } | |
3847 p->set_next(new_p); | |
3848 } | |
3849 } | |
3850 | |
3851 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3852 if (plist == NULL) | |
3853 return; | |
3854 | |
3855 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3856 PropertyList_add(plist, new_p); | |
3857 } | |
3858 | |
3859 // This add maintains unique property key in the list. | |
691 | 3860 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3861 if (plist == NULL) |
3862 return; | |
3863 | |
3864 // If property key exist then update with new value. | |
3865 SystemProperty* prop; | |
3866 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3867 if (strcmp(k, prop->key()) == 0) { | |
691 | 3868 if (append) { |
3869 prop->append_value(v); | |
3870 } else { | |
3871 prop->set_value(v); | |
3872 } | |
0 | 3873 return; |
3874 } | |
3875 } | |
3876 | |
3877 PropertyList_add(plist, k, v); | |
3878 } | |
3879 | |
3880 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3881 // Returns true if all of the source pointed by src has been copied over to | |
3882 // the destination buffer pointed by buf. Otherwise, returns false. | |
3883 // Notes: | |
3884 // 1. If the length (buflen) of the destination buffer excluding the | |
3885 // NULL terminator character is not long enough for holding the expanded | |
3886 // pid characters, it also returns false instead of returning the partially | |
3887 // expanded one. | |
3888 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3889 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3890 char* buf, size_t buflen) { | |
3891 const char* p = src; | |
3892 char* b = buf; | |
3893 const char* src_end = &src[srclen]; | |
3894 char* buf_end = &buf[buflen - 1]; | |
3895 | |
3896 while (p < src_end && b < buf_end) { | |
3897 if (*p == '%') { | |
3898 switch (*(++p)) { | |
3899 case '%': // "%%" ==> "%" | |
3900 *b++ = *p++; | |
3901 break; | |
3902 case 'p': { // "%p" ==> current process id | |
3903 // buf_end points to the character before the last character so | |
3904 // that we could write '\0' to the end of the buffer. | |
3905 size_t buf_sz = buf_end - b + 1; | |
3906 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3907 | |
3908 // if jio_snprintf fails or the buffer is not long enough to hold | |
3909 // the expanded pid, returns false. | |
3910 if (ret < 0 || ret >= (int)buf_sz) { | |
3911 return false; | |
3912 } else { | |
3913 b += ret; | |
3914 assert(*b == '\0', "fail in copy_expand_pid"); | |
3915 if (p == src_end && b == buf_end + 1) { | |
3916 // reach the end of the buffer. | |
3917 return true; | |
3918 } | |
3919 } | |
3920 p++; | |
3921 break; | |
3922 } | |
3923 default : | |
3924 *b++ = '%'; | |
3925 } | |
3926 } else { | |
3927 *b++ = *p++; | |
3928 } | |
3929 } | |
3930 *b = '\0'; | |
3931 return (p == src_end); // return false if not all of the source was copied | |
3932 } |