Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/arguments.cpp @ 14495:cd5d10655495
8027754: Enable loop optimizations for loops with MathExact inside
Reviewed-by: kvn, iveresov
author | rbackman |
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date | Thu, 23 Jan 2014 12:08:28 +0100 |
parents | 8a9bb7821e28 |
children | bb9356ec5967 9a83b7b3e37c |
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 | |
14411 | 53 #ifdef TARGET_OS_FAMILY_aix |
54 # include "os_aix.inline.hpp" | |
55 #endif | |
3960 | 56 #ifdef TARGET_OS_FAMILY_bsd |
57 # include "os_bsd.inline.hpp" | |
58 #endif | |
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59 #if INCLUDE_ALL_GCS |
1972 | 60 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" |
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61 #include "gc_implementation/g1/g1CollectedHeap.inline.hpp" |
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62 #include "gc_implementation/parallelScavenge/parallelScavengeHeap.hpp" |
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63 #endif // INCLUDE_ALL_GCS |
0 | 64 |
2474 | 65 // Note: This is a special bug reporting site for the JVM |
66 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 67 #define DEFAULT_JAVA_LAUNCHER "generic" |
68 | |
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69 // Disable options not supported in this release, with a warning if they |
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70 // were explicitly requested on the command-line |
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71 #define UNSUPPORTED_OPTION(opt, description) \ |
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72 do { \ |
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73 if (opt) { \ |
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74 if (FLAG_IS_CMDLINE(opt)) { \ |
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75 warning(description " is disabled in this release."); \ |
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76 } \ |
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77 FLAG_SET_DEFAULT(opt, false); \ |
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78 } \ |
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79 } while(0) |
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80 |
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81 #define UNSUPPORTED_GC_OPTION(gc) \ |
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82 do { \ |
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83 if (gc) { \ |
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84 if (FLAG_IS_CMDLINE(gc)) { \ |
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85 warning(#gc " is not supported in this VM. Using Serial GC."); \ |
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86 } \ |
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87 FLAG_SET_DEFAULT(gc, false); \ |
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88 } \ |
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89 } while(0) |
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90 |
0 | 91 char** Arguments::_jvm_flags_array = NULL; |
92 int Arguments::_num_jvm_flags = 0; | |
93 char** Arguments::_jvm_args_array = NULL; | |
94 int Arguments::_num_jvm_args = 0; | |
95 char* Arguments::_java_command = NULL; | |
96 SystemProperty* Arguments::_system_properties = NULL; | |
97 const char* Arguments::_gc_log_filename = NULL; | |
98 bool Arguments::_has_profile = false; | |
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99 size_t Arguments::_conservative_max_heap_alignment = 0; |
0 | 100 uintx Arguments::_min_heap_size = 0; |
101 Arguments::Mode Arguments::_mode = _mixed; | |
102 bool Arguments::_java_compiler = false; | |
103 bool Arguments::_xdebug_mode = false; | |
104 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
105 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
106 int Arguments::_sun_java_launcher_pid = -1; | |
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107 bool Arguments::_sun_java_launcher_is_altjvm = false; |
0 | 108 |
109 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
110 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
111 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
112 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
113 bool Arguments::_ClipInlining = ClipInlining; | |
114 | |
115 char* Arguments::SharedArchivePath = NULL; | |
116 | |
117 AgentLibraryList Arguments::_libraryList; | |
118 AgentLibraryList Arguments::_agentList; | |
119 | |
120 abort_hook_t Arguments::_abort_hook = NULL; | |
121 exit_hook_t Arguments::_exit_hook = NULL; | |
122 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
123 | |
124 | |
125 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
126 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
127 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
128 SystemProperty *Arguments::_java_library_path = NULL; | |
129 SystemProperty *Arguments::_java_home = NULL; | |
130 SystemProperty *Arguments::_java_class_path = NULL; | |
131 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
132 | |
133 char* Arguments::_meta_index_path = NULL; | |
134 char* Arguments::_meta_index_dir = NULL; | |
135 | |
136 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
137 | |
138 static bool match_option(const JavaVMOption *option, const char* name, | |
139 const char** tail) { | |
140 int len = (int)strlen(name); | |
141 if (strncmp(option->optionString, name, len) == 0) { | |
142 *tail = option->optionString + len; | |
143 return true; | |
144 } else { | |
145 return false; | |
146 } | |
147 } | |
148 | |
149 static void logOption(const char* opt) { | |
150 if (PrintVMOptions) { | |
151 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
152 } | |
153 } | |
154 | |
155 // Process java launcher properties. | |
156 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
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157 // See if sun.java.launcher, sun.java.launcher.is_altjvm or |
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158 // sun.java.launcher.pid is defined. |
0 | 159 // Must do this before setting up other system properties, |
160 // as some of them may depend on launcher type. | |
161 for (int index = 0; index < args->nOptions; index++) { | |
162 const JavaVMOption* option = args->options + index; | |
163 const char* tail; | |
164 | |
165 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
166 process_java_launcher_argument(tail, option->extraInfo); | |
167 continue; | |
168 } | |
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169 if (match_option(option, "-Dsun.java.launcher.is_altjvm=", &tail)) { |
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170 if (strcmp(tail, "true") == 0) { |
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171 _sun_java_launcher_is_altjvm = true; |
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172 } |
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173 continue; |
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174 } |
0 | 175 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { |
176 _sun_java_launcher_pid = atoi(tail); | |
177 continue; | |
178 } | |
179 } | |
180 } | |
181 | |
182 // Initialize system properties key and value. | |
183 void Arguments::init_system_properties() { | |
184 | |
185 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
186 "Java Virtual Machine Specification", false)); | |
187 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
188 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
189 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
190 | |
14309 | 191 // Following are JVMTI agent writable properties. |
0 | 192 // Properties values are set to NULL and they are |
193 // os specific they are initialized in os::init_system_properties_values(). | |
194 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
195 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
196 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
197 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
198 _java_home = new SystemProperty("java.home", NULL, true); | |
199 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
200 | |
201 _java_class_path = new SystemProperty("java.class.path", "", true); | |
202 | |
203 // Add to System Property list. | |
204 PropertyList_add(&_system_properties, _java_ext_dirs); | |
205 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
206 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
207 PropertyList_add(&_system_properties, _java_library_path); | |
208 PropertyList_add(&_system_properties, _java_home); | |
209 PropertyList_add(&_system_properties, _java_class_path); | |
210 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
211 | |
212 // Set OS specific system properties values | |
213 os::init_system_properties_values(); | |
214 } | |
215 | |
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216 |
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217 // Update/Initialize System properties after JDK version number is known |
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218 void Arguments::init_version_specific_system_properties() { |
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219 enum { bufsz = 16 }; |
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220 char buffer[bufsz]; |
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221 const char* spec_vendor = "Sun Microsystems Inc."; |
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222 uint32_t spec_version = 0; |
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223 |
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224 if (JDK_Version::is_gte_jdk17x_version()) { |
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225 spec_vendor = "Oracle Corporation"; |
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226 spec_version = JDK_Version::current().major_version(); |
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227 } |
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228 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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229 |
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230 PropertyList_add(&_system_properties, |
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231 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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232 PropertyList_add(&_system_properties, |
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233 new SystemProperty("java.vm.specification.version", buffer, false)); |
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234 PropertyList_add(&_system_properties, |
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235 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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236 } |
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237 |
242 | 238 /** |
239 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
240 * When a flag is eliminated, it can be added to this list in order to | |
241 * continue accepting this flag on the command-line, while issuing a warning | |
242 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
243 * limit, we flatly refuse to admit the existence of the flag. This allows | |
244 * a flag to die correctly over JDK releases using HSX. | |
245 */ | |
246 typedef struct { | |
247 const char* name; | |
248 JDK_Version obsoleted_in; // when the flag went away | |
249 JDK_Version accept_until; // which version to start denying the existence | |
250 } ObsoleteFlag; | |
0 | 251 |
242 | 252 static ObsoleteFlag obsolete_jvm_flags[] = { |
253 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
254 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
255 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
256 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
257 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
258 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
259 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
260 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
261 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
262 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
263 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
264 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
265 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
266 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 267 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
268 { "DefaultInitialRAMFraction", | |
269 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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270 { "UseDepthFirstScavengeOrder", |
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271 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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272 { "HandlePromotionFailure", |
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273 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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274 { "MaxLiveObjectEvacuationRatio", |
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275 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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276 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
3251
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277 { "UseParallelOldGCCompacting", |
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278 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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279 { "UseParallelDensePrefixUpdate", |
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280 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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281 { "UseParallelOldGCDensePrefix", |
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282 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 283 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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284 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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285 { "CMSPermGenPrecleaningEnabled", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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286 { "CMSTriggerPermRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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287 { "CMSInitiatingPermOccupancyFraction", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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288 { "AdaptivePermSizeWeight", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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289 { "PermGenPadding", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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290 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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291 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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292 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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293 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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294 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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295 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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296 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
6916 | 297 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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298 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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299 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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300 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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301 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
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302 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) }, |
14384 | 303 { "UseOldInlining", JDK_Version::jdk(9), JDK_Version::jdk(10) }, |
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304 #ifdef PRODUCT |
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305 { "DesiredMethodLimit", |
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306 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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307 #endif // PRODUCT |
242 | 308 { NULL, JDK_Version(0), JDK_Version(0) } |
309 }; | |
310 | |
311 // Returns true if the flag is obsolete and fits into the range specified | |
312 // for being ignored. In the case that the flag is ignored, the 'version' | |
313 // value is filled in with the version number when the flag became | |
314 // obsolete so that that value can be displayed to the user. | |
315 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 316 int i = 0; |
242 | 317 assert(version != NULL, "Must provide a version buffer"); |
318 while (obsolete_jvm_flags[i].name != NULL) { | |
319 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 320 // <flag>=xxx form |
321 // [-|+]<flag> form | |
242 | 322 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 323 ((s[0] == '+' || s[0] == '-') && |
242 | 324 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
325 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
326 *version = flag_status.obsoleted_in; | |
327 return true; | |
328 } | |
0 | 329 } |
330 i++; | |
331 } | |
332 return false; | |
333 } | |
334 | |
335 // Constructs the system class path (aka boot class path) from the following | |
336 // components, in order: | |
337 // | |
338 // prefix // from -Xbootclasspath/p:... | |
339 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
340 // base // from os::get_system_properties() or -Xbootclasspath= | |
341 // suffix // from -Xbootclasspath/a:... | |
342 // | |
343 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
344 // directories are added to the sysclasspath just before the base. | |
345 // | |
346 // This could be AllStatic, but it isn't needed after argument processing is | |
347 // complete. | |
348 class SysClassPath: public StackObj { | |
349 public: | |
350 SysClassPath(const char* base); | |
351 ~SysClassPath(); | |
352 | |
353 inline void set_base(const char* base); | |
354 inline void add_prefix(const char* prefix); | |
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355 inline void add_suffix_to_prefix(const char* suffix); |
0 | 356 inline void add_suffix(const char* suffix); |
357 inline void reset_path(const char* base); | |
358 | |
359 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
360 // property. Must be called after all command-line arguments have been | |
361 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
362 // combined_path(). | |
363 void expand_endorsed(); | |
364 | |
365 inline const char* get_base() const { return _items[_scp_base]; } | |
366 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
367 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
368 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
369 | |
370 // Combine all the components into a single c-heap-allocated string; caller | |
371 // must free the string if/when no longer needed. | |
372 char* combined_path(); | |
373 | |
374 private: | |
375 // Utility routines. | |
376 static char* add_to_path(const char* path, const char* str, bool prepend); | |
377 static char* add_jars_to_path(char* path, const char* directory); | |
378 | |
379 inline void reset_item_at(int index); | |
380 | |
381 // Array indices for the items that make up the sysclasspath. All except the | |
382 // base are allocated in the C heap and freed by this class. | |
383 enum { | |
384 _scp_prefix, // from -Xbootclasspath/p:... | |
385 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
386 _scp_base, // the default sysclasspath | |
387 _scp_suffix, // from -Xbootclasspath/a:... | |
388 _scp_nitems // the number of items, must be last. | |
389 }; | |
390 | |
391 const char* _items[_scp_nitems]; | |
392 DEBUG_ONLY(bool _expansion_done;) | |
393 }; | |
394 | |
395 SysClassPath::SysClassPath(const char* base) { | |
396 memset(_items, 0, sizeof(_items)); | |
397 _items[_scp_base] = base; | |
398 DEBUG_ONLY(_expansion_done = false;) | |
399 } | |
400 | |
401 SysClassPath::~SysClassPath() { | |
402 // Free everything except the base. | |
403 for (int i = 0; i < _scp_nitems; ++i) { | |
404 if (i != _scp_base) reset_item_at(i); | |
405 } | |
406 DEBUG_ONLY(_expansion_done = false;) | |
407 } | |
408 | |
409 inline void SysClassPath::set_base(const char* base) { | |
410 _items[_scp_base] = base; | |
411 } | |
412 | |
413 inline void SysClassPath::add_prefix(const char* prefix) { | |
414 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
415 } | |
416 | |
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417 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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418 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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419 } |
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420 |
0 | 421 inline void SysClassPath::add_suffix(const char* suffix) { |
422 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
423 } | |
424 | |
425 inline void SysClassPath::reset_item_at(int index) { | |
426 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
427 if (_items[index] != NULL) { | |
6197 | 428 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 429 _items[index] = NULL; |
430 } | |
431 } | |
432 | |
433 inline void SysClassPath::reset_path(const char* base) { | |
434 // Clear the prefix and suffix. | |
435 reset_item_at(_scp_prefix); | |
436 reset_item_at(_scp_suffix); | |
437 set_base(base); | |
438 } | |
439 | |
440 //------------------------------------------------------------------------------ | |
441 | |
442 void SysClassPath::expand_endorsed() { | |
443 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
444 | |
445 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
446 if (path == NULL) { | |
447 path = Arguments::get_endorsed_dir(); | |
448 assert(path != NULL, "no default for java.endorsed.dirs"); | |
449 } | |
450 | |
451 char* expanded_path = NULL; | |
452 const char separator = *os::path_separator(); | |
453 const char* const end = path + strlen(path); | |
454 while (path < end) { | |
455 const char* tmp_end = strchr(path, separator); | |
456 if (tmp_end == NULL) { | |
457 expanded_path = add_jars_to_path(expanded_path, path); | |
458 path = end; | |
459 } else { | |
6197 | 460 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 461 memcpy(dirpath, path, tmp_end - path); |
462 dirpath[tmp_end - path] = '\0'; | |
463 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 464 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 465 path = tmp_end + 1; |
466 } | |
467 } | |
468 _items[_scp_endorsed] = expanded_path; | |
469 DEBUG_ONLY(_expansion_done = true;) | |
470 } | |
471 | |
472 // Combine the bootclasspath elements, some of which may be null, into a single | |
473 // c-heap-allocated string. | |
474 char* SysClassPath::combined_path() { | |
475 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
476 assert(_expansion_done, "must call expand_endorsed() first."); | |
477 | |
478 size_t lengths[_scp_nitems]; | |
479 size_t total_len = 0; | |
480 | |
481 const char separator = *os::path_separator(); | |
482 | |
483 // Get the lengths. | |
484 int i; | |
485 for (i = 0; i < _scp_nitems; ++i) { | |
486 if (_items[i] != NULL) { | |
487 lengths[i] = strlen(_items[i]); | |
488 // Include space for the separator char (or a NULL for the last item). | |
489 total_len += lengths[i] + 1; | |
490 } | |
491 } | |
492 assert(total_len > 0, "empty sysclasspath not allowed"); | |
493 | |
494 // Copy the _items to a single string. | |
6197 | 495 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 496 char* cp_tmp = cp; |
497 for (i = 0; i < _scp_nitems; ++i) { | |
498 if (_items[i] != NULL) { | |
499 memcpy(cp_tmp, _items[i], lengths[i]); | |
500 cp_tmp += lengths[i]; | |
501 *cp_tmp++ = separator; | |
502 } | |
503 } | |
504 *--cp_tmp = '\0'; // Replace the extra separator. | |
505 return cp; | |
506 } | |
507 | |
508 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
509 char* | |
510 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
511 char *cp; | |
512 | |
513 assert(str != NULL, "just checking"); | |
514 if (path == NULL) { | |
515 size_t len = strlen(str) + 1; | |
6197 | 516 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 517 memcpy(cp, str, len); // copy the trailing null |
518 } else { | |
519 const char separator = *os::path_separator(); | |
520 size_t old_len = strlen(path); | |
521 size_t str_len = strlen(str); | |
522 size_t len = old_len + str_len + 2; | |
523 | |
524 if (prepend) { | |
6197 | 525 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 526 char* cp_tmp = cp; |
527 memcpy(cp_tmp, str, str_len); | |
528 cp_tmp += str_len; | |
529 *cp_tmp = separator; | |
530 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 531 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 532 } else { |
6197 | 533 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 534 char* cp_tmp = cp + old_len; |
535 *cp_tmp = separator; | |
536 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
537 } | |
538 } | |
539 return cp; | |
540 } | |
541 | |
542 // Scan the directory and append any jar or zip files found to path. | |
543 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
544 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
545 DIR* dir = os::opendir(directory); | |
546 if (dir == NULL) return path; | |
547 | |
548 char dir_sep[2] = { '\0', '\0' }; | |
549 size_t directory_len = strlen(directory); | |
550 const char fileSep = *os::file_separator(); | |
551 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
552 | |
553 /* Scan the directory for jars/zips, appending them to path. */ | |
554 struct dirent *entry; | |
6197 | 555 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 556 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
557 const char* name = entry->d_name; | |
558 const char* ext = name + strlen(name) - 4; | |
559 bool isJarOrZip = ext > name && | |
560 (os::file_name_strcmp(ext, ".jar") == 0 || | |
561 os::file_name_strcmp(ext, ".zip") == 0); | |
562 if (isJarOrZip) { | |
6197 | 563 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 564 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
565 path = add_to_path(path, jarpath, false); | |
6197 | 566 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 567 } |
568 } | |
6197 | 569 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 570 os::closedir(dir); |
571 return path; | |
572 } | |
573 | |
574 // Parses a memory size specification string. | |
489
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575 static bool atomull(const char *s, julong* result) { |
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576 julong n = 0; |
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577 int args_read = sscanf(s, JULONG_FORMAT, &n); |
0 | 578 if (args_read != 1) { |
579 return false; | |
580 } | |
581 while (*s != '\0' && isdigit(*s)) { | |
582 s++; | |
583 } | |
584 // 4705540: illegal if more characters are found after the first non-digit | |
585 if (strlen(s) > 1) { | |
586 return false; | |
587 } | |
588 switch (*s) { | |
589 case 'T': case 't': | |
590 *result = n * G * K; | |
489
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591 // Check for overflow. |
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592 if (*result/((julong)G * K) != n) return false; |
0 | 593 return true; |
594 case 'G': case 'g': | |
595 *result = n * G; | |
489
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596 if (*result/G != n) return false; |
0 | 597 return true; |
598 case 'M': case 'm': | |
599 *result = n * M; | |
489
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600 if (*result/M != n) return false; |
0 | 601 return true; |
602 case 'K': case 'k': | |
603 *result = n * K; | |
489
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604 if (*result/K != n) return false; |
0 | 605 return true; |
606 case '\0': | |
607 *result = n; | |
608 return true; | |
609 default: | |
610 return false; | |
611 } | |
612 } | |
613 | |
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614 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 615 if (size < min_size) return arg_too_small; |
616 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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617 if (size > max_uintx) return arg_too_big; |
0 | 618 return arg_in_range; |
619 } | |
620 | |
621 // Describe an argument out of range error | |
622 void Arguments::describe_range_error(ArgsRange errcode) { | |
623 switch(errcode) { | |
624 case arg_too_big: | |
625 jio_fprintf(defaultStream::error_stream(), | |
626 "The specified size exceeds the maximum " | |
627 "representable size.\n"); | |
628 break; | |
629 case arg_too_small: | |
630 case arg_unreadable: | |
631 case arg_in_range: | |
632 // do nothing for now | |
633 break; | |
634 default: | |
635 ShouldNotReachHere(); | |
636 } | |
637 } | |
638 | |
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639 static bool set_bool_flag(char* name, bool value, Flag::Flags origin) { |
0 | 640 return CommandLineFlags::boolAtPut(name, &value, origin); |
641 } | |
642 | |
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643 static bool set_fp_numeric_flag(char* name, char* value, Flag::Flags origin) { |
0 | 644 double v; |
645 if (sscanf(value, "%lf", &v) != 1) { | |
646 return false; | |
647 } | |
648 | |
649 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
650 return true; | |
651 } | |
652 return false; | |
653 } | |
654 | |
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655 static bool set_numeric_flag(char* name, char* value, Flag::Flags origin) { |
489
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656 julong v; |
0 | 657 intx intx_v; |
658 bool is_neg = false; | |
489
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659 // Check the sign first since atomull() parses only unsigned values. |
0 | 660 if (*value == '-') { |
661 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
662 return false; | |
663 } | |
664 value++; | |
665 is_neg = true; | |
666 } | |
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667 if (!atomull(value, &v)) { |
0 | 668 return false; |
669 } | |
670 intx_v = (intx) v; | |
671 if (is_neg) { | |
672 intx_v = -intx_v; | |
673 } | |
674 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
675 return true; | |
676 } | |
677 uintx uintx_v = (uintx) v; | |
678 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
679 return true; | |
680 } | |
1064 | 681 uint64_t uint64_t_v = (uint64_t) v; |
682 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
683 return true; | |
684 } | |
0 | 685 return false; |
686 } | |
687 | |
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688 static bool set_string_flag(char* name, const char* value, Flag::Flags origin) { |
0 | 689 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; |
690 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 691 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 692 return true; |
693 } | |
694 | |
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695 static bool append_to_string_flag(char* name, const char* new_value, Flag::Flags origin) { |
0 | 696 const char* old_value = ""; |
697 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
698 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
699 size_t new_len = strlen(new_value); | |
700 const char* value; | |
701 char* free_this_too = NULL; | |
702 if (old_len == 0) { | |
703 value = new_value; | |
704 } else if (new_len == 0) { | |
705 value = old_value; | |
706 } else { | |
6197 | 707 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 708 // each new setting adds another LINE to the switch: |
709 sprintf(buf, "%s\n%s", old_value, new_value); | |
710 value = buf; | |
711 free_this_too = buf; | |
712 } | |
713 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
714 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 715 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 716 if (free_this_too != NULL) { |
717 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 718 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 719 } |
720 return true; | |
721 } | |
722 | |
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723 bool Arguments::parse_argument(const char* arg, Flag::Flags origin) { |
0 | 724 |
725 // range of acceptable characters spelled out for portability reasons | |
726 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
727 #define BUFLEN 255 | |
728 char name[BUFLEN+1]; | |
729 char dummy; | |
730 | |
731 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
732 return set_bool_flag(name, false, origin); | |
733 } | |
734 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
735 return set_bool_flag(name, true, origin); | |
736 } | |
737 | |
738 char punct; | |
739 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
740 const char* value = strchr(arg, '=') + 1; | |
741 Flag* flag = Flag::find_flag(name, strlen(name)); | |
742 if (flag != NULL && flag->is_ccstr()) { | |
743 if (flag->ccstr_accumulates()) { | |
744 return append_to_string_flag(name, value, origin); | |
745 } else { | |
746 if (value[0] == '\0') { | |
747 value = NULL; | |
748 } | |
749 return set_string_flag(name, value, origin); | |
750 } | |
751 } | |
752 } | |
753 | |
754 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
755 const char* value = strchr(arg, '=') + 1; | |
756 // -XX:Foo:=xxx will reset the string flag to the given value. | |
757 if (value[0] == '\0') { | |
758 value = NULL; | |
759 } | |
760 return set_string_flag(name, value, origin); | |
761 } | |
762 | |
763 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
764 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
765 #define NUMBER_RANGE "[0123456789]" | |
766 char value[BUFLEN + 1]; | |
767 char value2[BUFLEN + 1]; | |
768 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
769 // Looks like a floating-point number -- try again with more lenient format string | |
770 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
771 return set_fp_numeric_flag(name, value, origin); | |
772 } | |
773 } | |
774 | |
775 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
776 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
777 return set_numeric_flag(name, value, origin); | |
778 } | |
779 | |
780 return false; | |
781 } | |
782 | |
783 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
784 assert(bldarray != NULL, "illegal argument"); | |
785 | |
786 if (arg == NULL) { | |
787 return; | |
788 } | |
789 | |
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790 int new_count = *count + 1; |
0 | 791 |
792 // expand the array and add arg to the last element | |
793 if (*bldarray == NULL) { | |
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794 *bldarray = NEW_C_HEAP_ARRAY(char*, new_count, mtInternal); |
0 | 795 } else { |
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796 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, new_count, mtInternal); |
0 | 797 } |
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798 (*bldarray)[*count] = strdup(arg); |
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799 *count = new_count; |
0 | 800 } |
801 | |
802 void Arguments::build_jvm_args(const char* arg) { | |
803 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
804 } | |
805 | |
806 void Arguments::build_jvm_flags(const char* arg) { | |
807 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
808 } | |
809 | |
810 // utility function to return a string that concatenates all | |
811 // strings in a given char** array | |
812 const char* Arguments::build_resource_string(char** args, int count) { | |
813 if (args == NULL || count == 0) { | |
814 return NULL; | |
815 } | |
816 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
817 for (int i = 1; i < count; i++) { | |
818 length += strlen(args[i]) + 1; // add 1 for a space | |
819 } | |
820 char* s = NEW_RESOURCE_ARRAY(char, length); | |
821 strcpy(s, args[0]); | |
822 for (int j = 1; j < count; j++) { | |
823 strcat(s, " "); | |
824 strcat(s, args[j]); | |
825 } | |
826 return (const char*) s; | |
827 } | |
828 | |
829 void Arguments::print_on(outputStream* st) { | |
830 st->print_cr("VM Arguments:"); | |
831 if (num_jvm_flags() > 0) { | |
832 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
833 } | |
834 if (num_jvm_args() > 0) { | |
835 st->print("jvm_args: "); print_jvm_args_on(st); | |
836 } | |
837 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
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838 if (_java_class_path != NULL) { |
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839 char* path = _java_class_path->value(); |
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840 st->print_cr("java_class_path (initial): %s", strlen(path) == 0 ? "<not set>" : path ); |
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841 } |
0 | 842 st->print_cr("Launcher Type: %s", _sun_java_launcher); |
843 } | |
844 | |
845 void Arguments::print_jvm_flags_on(outputStream* st) { | |
846 if (_num_jvm_flags > 0) { | |
847 for (int i=0; i < _num_jvm_flags; i++) { | |
848 st->print("%s ", _jvm_flags_array[i]); | |
849 } | |
850 st->print_cr(""); | |
851 } | |
852 } | |
853 | |
854 void Arguments::print_jvm_args_on(outputStream* st) { | |
855 if (_num_jvm_args > 0) { | |
856 for (int i=0; i < _num_jvm_args; i++) { | |
857 st->print("%s ", _jvm_args_array[i]); | |
858 } | |
859 st->print_cr(""); | |
860 } | |
861 } | |
862 | |
242 | 863 bool Arguments::process_argument(const char* arg, |
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864 jboolean ignore_unrecognized, Flag::Flags origin) { |
242 | 865 |
866 JDK_Version since = JDK_Version(); | |
0 | 867 |
3250 | 868 if (parse_argument(arg, origin) || ignore_unrecognized) { |
869 return true; | |
0 | 870 } |
3250 | 871 |
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872 bool has_plus_minus = (*arg == '+' || *arg == '-'); |
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873 const char* const argname = has_plus_minus ? arg + 1 : arg; |
3250 | 874 if (is_newly_obsolete(arg, &since)) { |
875 char version[256]; | |
876 since.to_string(version, sizeof(version)); | |
877 warning("ignoring option %s; support was removed in %s", argname, version); | |
878 return true; | |
879 } | |
880 | |
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881 // For locked flags, report a custom error message if available. |
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882 // Otherwise, report the standard unrecognized VM option. |
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883 |
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884 size_t arg_len; |
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885 const char* equal_sign = strchr(argname, '='); |
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886 if (equal_sign == NULL) { |
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887 arg_len = strlen(argname); |
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888 } else { |
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889 arg_len = equal_sign - argname; |
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890 } |
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891 |
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892 Flag* found_flag = Flag::find_flag((const char*)argname, arg_len, true, true); |
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893 if (found_flag != NULL) { |
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894 char locked_message_buf[BUFLEN]; |
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895 found_flag->get_locked_message(locked_message_buf, BUFLEN); |
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896 if (strlen(locked_message_buf) == 0) { |
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897 if (found_flag->is_bool() && !has_plus_minus) { |
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898 jio_fprintf(defaultStream::error_stream(), |
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899 "Missing +/- setting for VM option '%s'\n", argname); |
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900 } else if (!found_flag->is_bool() && has_plus_minus) { |
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901 jio_fprintf(defaultStream::error_stream(), |
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902 "Unexpected +/- setting in VM option '%s'\n", argname); |
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903 } else { |
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904 jio_fprintf(defaultStream::error_stream(), |
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905 "Improperly specified VM option '%s'\n", argname); |
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906 } |
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907 } else { |
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908 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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909 } |
6017 | 910 } else { |
911 jio_fprintf(defaultStream::error_stream(), | |
912 "Unrecognized VM option '%s'\n", argname); | |
11070 | 913 Flag* fuzzy_matched = Flag::fuzzy_match((const char*)argname, arg_len, true); |
914 if (fuzzy_matched != NULL) { | |
915 jio_fprintf(defaultStream::error_stream(), | |
916 "Did you mean '%s%s%s'?\n", | |
917 (fuzzy_matched->is_bool()) ? "(+/-)" : "", | |
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918 fuzzy_matched->_name, |
11070 | 919 (fuzzy_matched->is_bool()) ? "" : "=<value>"); |
920 } | |
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921 } |
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922 |
3250 | 923 // allow for commandline "commenting out" options like -XX:#+Verbose |
924 return arg[0] == '#'; | |
0 | 925 } |
926 | |
927 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
928 FILE* stream = fopen(file_name, "rb"); | |
929 if (stream == NULL) { | |
930 if (should_exist) { | |
931 jio_fprintf(defaultStream::error_stream(), | |
932 "Could not open settings file %s\n", file_name); | |
933 return false; | |
934 } else { | |
935 return true; | |
936 } | |
937 } | |
938 | |
939 char token[1024]; | |
940 int pos = 0; | |
941 | |
942 bool in_white_space = true; | |
943 bool in_comment = false; | |
944 bool in_quote = false; | |
945 char quote_c = 0; | |
946 bool result = true; | |
947 | |
948 int c = getc(stream); | |
6901 | 949 while(c != EOF && pos < (int)(sizeof(token)-1)) { |
0 | 950 if (in_white_space) { |
951 if (in_comment) { | |
952 if (c == '\n') in_comment = false; | |
953 } else { | |
954 if (c == '#') in_comment = true; | |
955 else if (!isspace(c)) { | |
956 in_white_space = false; | |
957 token[pos++] = c; | |
958 } | |
959 } | |
960 } else { | |
961 if (c == '\n' || (!in_quote && isspace(c))) { | |
962 // token ends at newline, or at unquoted whitespace | |
963 // this allows a way to include spaces in string-valued options | |
964 token[pos] = '\0'; | |
965 logOption(token); | |
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966 result &= process_argument(token, ignore_unrecognized, Flag::CONFIG_FILE); |
0 | 967 build_jvm_flags(token); |
968 pos = 0; | |
969 in_white_space = true; | |
970 in_quote = false; | |
971 } else if (!in_quote && (c == '\'' || c == '"')) { | |
972 in_quote = true; | |
973 quote_c = c; | |
974 } else if (in_quote && (c == quote_c)) { | |
975 in_quote = false; | |
976 } else { | |
977 token[pos++] = c; | |
978 } | |
979 } | |
980 c = getc(stream); | |
981 } | |
982 if (pos > 0) { | |
983 token[pos] = '\0'; | |
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984 result &= process_argument(token, ignore_unrecognized, Flag::CONFIG_FILE); |
0 | 985 build_jvm_flags(token); |
986 } | |
987 fclose(stream); | |
988 return result; | |
989 } | |
990 | |
991 //============================================================================================================= | |
992 // Parsing of properties (-D) | |
993 | |
994 const char* Arguments::get_property(const char* key) { | |
995 return PropertyList_get_value(system_properties(), key); | |
996 } | |
997 | |
998 bool Arguments::add_property(const char* prop) { | |
999 const char* eq = strchr(prop, '='); | |
1000 char* key; | |
1001 // ns must be static--its address may be stored in a SystemProperty object. | |
1002 const static char ns[1] = {0}; | |
1003 char* value = (char *)ns; | |
1004 | |
1005 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 1006 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 1007 strncpy(key, prop, key_len); |
1008 key[key_len] = '\0'; | |
1009 | |
1010 if (eq != NULL) { | |
1011 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 1012 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 1013 strncpy(value, &prop[key_len + 1], value_len + 1); |
1014 } | |
1015 | |
1016 if (strcmp(key, "java.compiler") == 0) { | |
1017 process_java_compiler_argument(value); | |
1018 FreeHeap(key); | |
1019 if (eq != NULL) { | |
1020 FreeHeap(value); | |
1021 } | |
1022 return true; | |
691 | 1023 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 1024 _java_command = value; |
1025 | |
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1026 // Record value in Arguments, but let it get passed to Java. |
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1027 } else if (strcmp(key, "sun.java.launcher.is_altjvm") == 0 || |
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1028 strcmp(key, "sun.java.launcher.pid") == 0) { |
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1029 // sun.java.launcher.is_altjvm and sun.java.launcher.pid property are |
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1030 // private and are processed in process_sun_java_launcher_properties(); |
0 | 1031 // the sun.java.launcher property is passed on to the java application |
1032 FreeHeap(key); | |
1033 if (eq != NULL) { | |
1034 FreeHeap(value); | |
1035 } | |
1036 return true; | |
691 | 1037 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 1038 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
1039 // its value without going through the property list or making a Java call. | |
1040 _java_vendor_url_bug = value; | |
691 | 1041 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
1042 PropertyList_unique_add(&_system_properties, key, value, true); | |
1043 return true; | |
0 | 1044 } |
1045 // Create new property and add at the end of the list | |
1046 PropertyList_unique_add(&_system_properties, key, value); | |
1047 return true; | |
1048 } | |
1049 | |
1050 //=========================================================================================================== | |
1051 // Setting int/mixed/comp mode flags | |
1052 | |
1053 void Arguments::set_mode_flags(Mode mode) { | |
1054 // Set up default values for all flags. | |
1055 // If you add a flag to any of the branches below, | |
1056 // add a default value for it here. | |
1057 set_java_compiler(false); | |
1058 _mode = mode; | |
1059 | |
1060 // Ensure Agent_OnLoad has the correct initial values. | |
1061 // This may not be the final mode; mode may change later in onload phase. | |
1062 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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1063 (char*)VM_Version::vm_info_string(), false); |
0 | 1064 |
1065 UseInterpreter = true; | |
1066 UseCompiler = true; | |
1067 UseLoopCounter = true; | |
1068 | |
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1069 #ifndef ZERO |
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1070 // Turn these off for mixed and comp. Leave them on for Zero. |
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1071 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1072 UseFastAccessorMethods = (mode == _int); |
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1073 } |
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1074 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1075 UseFastEmptyMethods = (mode == _int); |
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1076 } |
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1077 #endif |
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1078 |
0 | 1079 // Default values may be platform/compiler dependent - |
1080 // use the saved values | |
1081 ClipInlining = Arguments::_ClipInlining; | |
1082 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1083 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1084 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1085 | |
1086 // Change from defaults based on mode | |
1087 switch (mode) { | |
1088 default: | |
1089 ShouldNotReachHere(); | |
1090 break; | |
1091 case _int: | |
1092 UseCompiler = false; | |
1093 UseLoopCounter = false; | |
1094 AlwaysCompileLoopMethods = false; | |
1095 UseOnStackReplacement = false; | |
1096 break; | |
1097 case _mixed: | |
1098 // same as default | |
1099 break; | |
1100 case _comp: | |
1101 UseInterpreter = false; | |
1102 BackgroundCompilation = false; | |
1103 ClipInlining = false; | |
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1104 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1105 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1106 // compile a level 4 (C2) and then continue executing it. |
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1107 if (TieredCompilation) { |
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1108 Tier3InvokeNotifyFreqLog = 0; |
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1109 Tier4InvocationThreshold = 0; |
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1110 } |
0 | 1111 break; |
1112 } | |
1113 } | |
1114 | |
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1115 #if defined(COMPILER2) || defined(_LP64) || !INCLUDE_CDS |
0 | 1116 // Conflict: required to use shared spaces (-Xshare:on), but |
1117 // incompatible command line options were chosen. | |
1118 | |
1119 static void no_shared_spaces() { | |
1120 if (RequireSharedSpaces) { | |
1121 jio_fprintf(defaultStream::error_stream(), | |
1122 "Class data sharing is inconsistent with other specified options.\n"); | |
1123 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1124 } else { | |
1125 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1126 } | |
1127 } | |
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1128 #endif |
0 | 1129 |
1783 | 1130 void Arguments::set_tiered_flags() { |
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1131 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1132 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1133 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1134 } |
1135 if (CompilationPolicyChoice < 2) { | |
1136 vm_exit_during_initialization( | |
1137 "Incompatible compilation policy selected", NULL); | |
1138 } | |
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1139 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1140 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
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1141 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 5); |
1783 | 1142 } |
10278 | 1143 if (!UseInterpreter) { // -Xcomp |
1144 Tier3InvokeNotifyFreqLog = 0; | |
1145 Tier4InvocationThreshold = 0; | |
1146 } | |
1783 | 1147 } |
1148 | |
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1149 #if INCLUDE_ALL_GCS |
4838 | 1150 static void disable_adaptive_size_policy(const char* collector_name) { |
1151 if (UseAdaptiveSizePolicy) { | |
1152 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1153 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1154 collector_name); | |
1155 } | |
1156 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1157 } | |
1158 } | |
1159 | |
0 | 1160 void Arguments::set_parnew_gc_flags() { |
1064 | 1161 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1162 "control point invariant"); |
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1163 assert(UseParNewGC, "Error"); |
0 | 1164 |
4838 | 1165 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1166 disable_adaptive_size_policy("UseParNewGC"); | |
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1167 |
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1168 if (FLAG_IS_DEFAULT(ParallelGCThreads)) { |
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1169 FLAG_SET_DEFAULT(ParallelGCThreads, Abstract_VM_Version::parallel_worker_threads()); |
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1170 assert(ParallelGCThreads > 0, "We should always have at least one thread by default"); |
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1171 } else if (ParallelGCThreads == 0) { |
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1172 jio_fprintf(defaultStream::error_stream(), |
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1173 "The ParNew GC can not be combined with -XX:ParallelGCThreads=0\n"); |
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1174 vm_exit(1); |
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1175 } |
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1176 |
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1177 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
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1178 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
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1179 // we set them to 1024 and 1024. |
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1180 // See CR 6362902. |
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1181 if (FLAG_IS_DEFAULT(YoungPLABSize)) { |
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1182 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); |
0 | 1183 } |
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1184 if (FLAG_IS_DEFAULT(OldPLABSize)) { |
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1185 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); |
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1186 } |
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1187 |
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1188 // AlwaysTenure flag should make ParNew promote all at first collection. |
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1189 // See CR 6362902. |
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1190 if (AlwaysTenure) { |
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1191 FLAG_SET_CMDLINE(uintx, MaxTenuringThreshold, 0); |
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1192 } |
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1193 // When using compressed oops, we use local overflow stacks, |
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1194 // rather than using a global overflow list chained through |
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1195 // the klass word of the object's pre-image. |
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1196 if (UseCompressedOops && !ParGCUseLocalOverflow) { |
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1197 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { |
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1198 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); |
0 | 1199 } |
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1200 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); |
0 | 1201 } |
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1202 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); |
0 | 1203 } |
1204 | |
1205 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1206 // sparc/solaris for certain applications, but would gain from | |
1207 // further optimization and tuning efforts, and would almost | |
1208 // certainly gain from analysis of platform and environment. | |
1209 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1210 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1211 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1212 |
0 | 1213 // If we are using CMS, we prefer to UseParNewGC, |
1214 // unless explicitly forbidden. | |
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1215 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1216 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1217 } |
1218 | |
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1219 // Turn off AdaptiveSizePolicy by default for cms until it is complete. |
4838 | 1220 disable_adaptive_size_policy("UseConcMarkSweepGC"); |
0 | 1221 |
1222 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1223 // as needed. | |
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1224 if (UseParNewGC) { |
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1225 set_parnew_gc_flags(); |
0 | 1226 } |
1227 | |
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1228 size_t max_heap = align_size_down(MaxHeapSize, |
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1229 CardTableRS::ct_max_alignment_constraint()); |
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1230 |
0 | 1231 // Now make adjustments for CMS |
2368
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1232 intx tenuring_default = (intx)6; |
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1233 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1234 |
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1235 // Preferred young gen size for "short" pauses: |
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1236 // upper bound depends on # of threads and NewRatio. |
0 | 1237 const uintx parallel_gc_threads = |
1238 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1239 const size_t preferred_max_new_size_unaligned = | |
2368
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1240 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1241 size_t preferred_max_new_size = |
0 | 1242 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1243 | |
1244 // Unless explicitly requested otherwise, size young gen | |
2368
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1245 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
886
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1246 |
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1247 // If either MaxNewSize or NewRatio is set on the command line, |
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1248 // assume the user is trying to set the size of the young gen. |
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1249 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1250 |
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1251 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1252 // NewSize was set on the command line and it is larger than |
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1253 // preferred_max_new_size. |
0 | 1254 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1255 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1256 } else { |
13
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1257 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1258 } |
1064 | 1259 if (PrintGCDetails && Verbose) { |
13
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1260 // Too early to use gclog_or_tty |
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1261 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
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1262 } |
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1263 |
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1264 // Code along this path potentially sets NewSize and OldSize |
1064 | 1265 if (PrintGCDetails && Verbose) { |
13
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1266 // Too early to use gclog_or_tty |
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1267 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1268 " initial_heap_size: " SIZE_FORMAT |
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1269 " max_heap: " SIZE_FORMAT, |
1064 | 1270 min_heap_size(), InitialHeapSize, max_heap); |
13
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1271 } |
2368
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1272 size_t min_new = preferred_max_new_size; |
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1273 if (FLAG_IS_CMDLINE(NewSize)) { |
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1274 min_new = NewSize; |
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1275 } |
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1276 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1277 // Unless explicitly requested otherwise, make young gen |
1278 // at least min_new, and at most preferred_max_new_size. | |
1279 if (FLAG_IS_DEFAULT(NewSize)) { | |
13
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1280 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1281 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1282 if (PrintGCDetails && Verbose) { |
13
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1283 // Too early to use gclog_or_tty |
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1284 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1285 } |
0 | 1286 } |
1287 // Unless explicitly requested otherwise, size old gen | |
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1288 // so it's NewRatio x of NewSize. |
0 | 1289 if (FLAG_IS_DEFAULT(OldSize)) { |
1290 if (max_heap > NewSize) { | |
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1291 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1292 if (PrintGCDetails && Verbose) { |
13
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1293 // Too early to use gclog_or_tty |
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1294 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
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1295 } |
0 | 1296 } |
1297 } | |
1298 } | |
1299 } | |
1300 // Unless explicitly requested otherwise, definitely | |
1301 // promote all objects surviving "tenuring_default" scavenges. | |
1302 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1303 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
6818 | 1304 FLAG_SET_ERGO(uintx, MaxTenuringThreshold, tenuring_default); |
0 | 1305 } |
1306 // If we decided above (or user explicitly requested) | |
1307 // `promote all' (via MaxTenuringThreshold := 0), | |
1308 // prefer minuscule survivor spaces so as not to waste | |
1309 // space for (non-existent) survivors | |
1310 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
8035 | 1311 FLAG_SET_ERGO(uintx, SurvivorRatio, MAX2((uintx)1024, SurvivorRatio)); |
0 | 1312 } |
1313 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1314 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1315 // This is done in order to make ParNew+CMS configuration to work | |
1316 // with YoungPLABSize and OldPLABSize options. | |
1317 // See CR 6362902. | |
1318 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1319 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
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1320 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
14309 | 1321 // is. In this situation let CMSParPromoteBlocksToClaim follow |
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1322 // the value (either from the command line or ergonomics) of |
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1323 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1324 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
1145
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1325 } else { |
0 | 1326 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1327 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1328 // we'll let it to take precedence. | |
1329 jio_fprintf(defaultStream::error_stream(), | |
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1330 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1331 " options are specified for the CMS collector." |
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1332 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1333 } |
1334 } | |
1145
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1335 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1336 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1337 // unless it was manually specified. This is because a too-low value |
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1338 // will slow down scavenges. |
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1339 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1340 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1341 } |
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1342 } |
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1343 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1344 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1345 // If either of the static initialization defaults have changed, note this |
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1346 // modification. |
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1347 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1348 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1349 } |
1284 | 1350 if (PrintGCDetails && Verbose) { |
1351 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1352 MarkStackSize / K, MarkStackSizeMax / K); | |
1353 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1354 } | |
0 | 1355 } |
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1356 #endif // INCLUDE_ALL_GCS |
0 | 1357 |
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1358 void set_object_alignment() { |
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1359 // Object alignment. |
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1360 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1361 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1362 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1363 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1364 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1365 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1366 |
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1367 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1368 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1369 |
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1370 // Oop encoding heap max |
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1371 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1372 |
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1373 #if INCLUDE_ALL_GCS |
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1374 // Set CMS global values |
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1375 CompactibleFreeListSpace::set_cms_values(); |
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1376 #endif // INCLUDE_ALL_GCS |
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1377 } |
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1378 |
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1379 bool verify_object_alignment() { |
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1380 // Object alignment. |
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1381 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1382 jio_fprintf(defaultStream::error_stream(), |
1829
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1383 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
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diff
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|
1384 (int)ObjectAlignmentInBytes); |
1571
2d127394260e
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diff
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|
1385 return false; |
2d127394260e
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kvn
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diff
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|
1386 } |
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|
1387 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
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|
1388 jio_fprintf(defaultStream::error_stream(), |
1829
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
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|
1389 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
fe08403130db
6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
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1796
diff
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|
1390 (int)ObjectAlignmentInBytes, BytesPerLong); |
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diff
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|
1391 return false; |
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diff
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|
1392 } |
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diff
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|
1393 // It does not make sense to have big object alignment |
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diff
changeset
|
1394 // since a space lost due to alignment will be greater |
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diff
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|
1395 // then a saved space from compressed oops. |
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|
1396 if ((int)ObjectAlignmentInBytes > 256) { |
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|
1397 jio_fprintf(defaultStream::error_stream(), |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
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|
1398 "error: ObjectAlignmentInBytes=%d must not be greater than 256\n", |
1829
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|
1399 (int)ObjectAlignmentInBytes); |
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|
1400 return false; |
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|
1401 } |
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1796
diff
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|
1402 // In case page size is very small. |
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6979458: VM crashes when -XX:ObjectAlignmentInBytes is too big
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1796
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|
1403 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
fe08403130db
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|
1404 jio_fprintf(defaultStream::error_stream(), |
7461
561148896559
8005076: Creating a CDS archive with one alignment and running another causes a crash.
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|
1405 "error: ObjectAlignmentInBytes=%d must be less than page size %d\n", |
1829
fe08403130db
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diff
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|
1406 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
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|
1407 return false; |
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|
1408 } |
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|
1409 return true; |
2d127394260e
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diff
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|
1410 } |
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|
1411 |
12233
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|
1412 uintx Arguments::max_heap_for_compressed_oops() { |
1963 | 1413 // Avoid sign flip. |
12056
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|
1414 assert(OopEncodingHeapMax > (uint64_t)os::vm_page_size(), "Unusual page size"); |
12233
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|
1415 // We need to fit both the NULL page and the heap into the memory budget, while |
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|
1416 // keeping alignment constraints of the heap. To guarantee the latter, as the |
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|
1417 // NULL page is located before the heap, we pad the NULL page to the conservative |
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1418 // maximum alignment that the GC may ever impose upon the heap. |
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|
1419 size_t displacement_due_to_null_page = align_size_up_(os::vm_page_size(), |
13059
46d7652b223c
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13008
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|
1420 _conservative_max_heap_alignment); |
12233
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|
1421 |
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|
1422 LP64_ONLY(return OopEncodingHeapMax - displacement_due_to_null_page); |
1064 | 1423 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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6689523: max heap calculation for compressed oops is off by MaxPermSize
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|
1424 } |
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|
1425 |
0 | 1426 bool Arguments::should_auto_select_low_pause_collector() { |
1427 if (UseAutoGCSelectPolicy && | |
1428 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1429 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1430 if (PrintGCDetails) { | |
1431 // Cannot use gclog_or_tty yet. | |
1432 tty->print_cr("Automatic selection of the low pause collector" | |
1433 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1434 } | |
1435 return true; | |
1436 } | |
1437 return false; | |
1438 } | |
1439 | |
8741
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|
1440 void Arguments::set_use_compressed_oops() { |
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|
1441 #ifndef ZERO |
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|
1442 #ifdef _LP64 |
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|
1443 // MaxHeapSize is not set up properly at this point, but |
eac371996b44
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|
1444 // the only value that can override MaxHeapSize if we are |
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8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
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|
1445 // to use UseCompressedOops is InitialHeapSize. |
eac371996b44
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|
1446 size_t max_heap_size = MAX2(MaxHeapSize, InitialHeapSize); |
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|
1447 |
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|
1448 if (max_heap_size <= max_heap_for_compressed_oops()) { |
eac371996b44
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brutisso
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|
1449 #if !defined(COMPILER1) || defined(TIERED) |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
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|
1450 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
eac371996b44
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diff
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|
1451 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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diff
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|
1452 } |
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diff
changeset
|
1453 #endif |
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diff
changeset
|
1454 #ifdef _WIN64 |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
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diff
changeset
|
1455 if (UseLargePages && UseCompressedOops) { |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
8734
diff
changeset
|
1456 // Cannot allocate guard pages for implicit checks in indexed addressing |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
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diff
changeset
|
1457 // mode, when large pages are specified on windows. |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
8734
diff
changeset
|
1458 // This flag could be switched ON if narrow oop base address is set to 0, |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
8734
diff
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|
1459 // see code in Universe::initialize_heap(). |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
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diff
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|
1460 Universe::set_narrow_oop_use_implicit_null_checks(false); |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
parents:
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diff
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|
1461 } |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
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diff
changeset
|
1462 #endif // _WIN64 |
eac371996b44
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brutisso
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diff
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|
1463 } else { |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
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diff
changeset
|
1464 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
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changeset
|
1465 warning("Max heap size too large for Compressed Oops"); |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
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diff
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|
1466 FLAG_SET_DEFAULT(UseCompressedOops, false); |
12226
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12182
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|
1467 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
8741
eac371996b44
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diff
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|
1468 } |
eac371996b44
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|
1469 } |
eac371996b44
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|
1470 #endif // _LP64 |
eac371996b44
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brutisso
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|
1471 #endif // ZERO |
eac371996b44
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|
1472 } |
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
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|
1473 |
12056
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|
1474 |
740e263c80c6
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12003
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changeset
|
1475 // NOTE: set_use_compressed_klass_ptrs() must be called after calling |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
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|
1476 // set_use_compressed_oops(). |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
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changeset
|
1477 void Arguments::set_use_compressed_klass_ptrs() { |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
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12003
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changeset
|
1478 #ifndef ZERO |
740e263c80c6
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|
1479 #ifdef _LP64 |
12226
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12182
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|
1480 // UseCompressedOops must be on for UseCompressedClassPointers to be on. |
12056
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diff
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|
1481 if (!UseCompressedOops) { |
12226
7944aba7ba41
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ehelin
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12182
diff
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|
1482 if (UseCompressedClassPointers) { |
7944aba7ba41
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ehelin
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12182
diff
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|
1483 warning("UseCompressedClassPointers requires UseCompressedOops"); |
12056
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|
1484 } |
12226
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|
1485 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
12056
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|
1486 } else { |
12226
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diff
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|
1487 // Turn on UseCompressedClassPointers too |
7944aba7ba41
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12182
diff
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|
1488 if (FLAG_IS_DEFAULT(UseCompressedClassPointers)) { |
7944aba7ba41
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diff
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|
1489 FLAG_SET_ERGO(bool, UseCompressedClassPointers, true); |
12056
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|
1490 } |
12226
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|
1491 // Check the CompressedClassSpaceSize to make sure we use compressed klass ptrs. |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
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parents:
12182
diff
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|
1492 if (UseCompressedClassPointers) { |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
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12182
diff
changeset
|
1493 if (CompressedClassSpaceSize > KlassEncodingMetaspaceMax) { |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
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12182
diff
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|
1494 warning("CompressedClassSpaceSize is too large for UseCompressedClassPointers"); |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
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12182
diff
changeset
|
1495 FLAG_SET_DEFAULT(UseCompressedClassPointers, false); |
12056
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12003
diff
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|
1496 } |
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12003
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|
1497 } |
740e263c80c6
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|
1498 } |
740e263c80c6
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12003
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|
1499 #endif // _LP64 |
740e263c80c6
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12003
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|
1500 #endif // !ZERO |
740e263c80c6
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12003
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|
1501 } |
740e263c80c6
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|
1502 |
12233
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|
1503 void Arguments::set_conservative_max_heap_alignment() { |
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|
1504 // The conservative maximum required alignment for the heap is the maximum of |
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|
1505 // the alignments imposed by several sources: any requirements from the heap |
40136aa2cdb1
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|
1506 // itself, the collector policy and the maximum page size we may run the VM |
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diff
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|
1507 // with. |
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|
1508 size_t heap_alignment = GenCollectedHeap::conservative_max_heap_alignment(); |
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|
1509 #if INCLUDE_ALL_GCS |
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|
1510 if (UseParallelGC) { |
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|
1511 heap_alignment = ParallelScavengeHeap::conservative_max_heap_alignment(); |
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|
1512 } else if (UseG1GC) { |
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|
1513 heap_alignment = G1CollectedHeap::conservative_max_heap_alignment(); |
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|
1514 } |
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|
1515 #endif // INCLUDE_ALL_GCS |
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|
1516 _conservative_max_heap_alignment = MAX3(heap_alignment, os::max_page_size(), |
13060
8f07aa079343
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|
1517 CollectorPolicy::compute_heap_alignment()); |
12233
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|
1518 } |
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8010722: assert: failed: heap size is too big for compressed oops
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|
1519 |
0 | 1520 void Arguments::set_ergonomics_flags() { |
1521 | |
4946 | 1522 if (os::is_server_class_machine()) { |
0 | 1523 // If no other collector is requested explicitly, |
1524 // let the VM select the collector based on | |
1525 // machine class and automatic selection policy. | |
1526 if (!UseSerialGC && | |
1527 !UseConcMarkSweepGC && | |
342
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diff
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|
1528 !UseG1GC && |
0 | 1529 !UseParNewGC && |
1530 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1531 if (should_auto_select_low_pause_collector()) { | |
1532 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1533 } else { | |
1534 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1535 } | |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
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6628
diff
changeset
|
1536 } |
0 | 1537 } |
12280
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1538 #ifdef COMPILER2 |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1539 // Shared spaces work fine with other GCs but causes bytecode rewriting |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1540 // to be disabled, which hurts interpreter performance and decreases |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1541 // server performance. When -server is specified, keep the default off |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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diff
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|
1542 // unless it is asked for. Future work: either add bytecode rewriting |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1543 // at link time, or rewrite bytecodes in non-shared methods. |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
diff
changeset
|
1544 if (!DumpSharedSpaces && !RequireSharedSpaces && |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
parents:
12276
diff
changeset
|
1545 (FLAG_IS_DEFAULT(UseSharedSpaces) || !UseSharedSpaces)) { |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
hseigel
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12276
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changeset
|
1546 no_shared_spaces(); |
9ed97b511b26
8024517: runtime/CDSCompressedKPtrs/XShareAuto.java failed with RuntimeException
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diff
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|
1547 } |
9ed97b511b26
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|
1548 #endif |
113
ba764ed4b6f2
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|
1549 |
12233
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|
1550 set_conservative_max_heap_alignment(); |
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|
1551 |
1010 | 1552 #ifndef ZERO |
113
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|
1553 #ifdef _LP64 |
8741
eac371996b44
8001049: VM crashes when running with large -Xms and not specifying ObjectAlignmentInBytes
brutisso
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8734
diff
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|
1554 set_use_compressed_oops(); |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
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|
1555 |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
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diff
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|
1556 // set_use_compressed_klass_ptrs() must be called after calling |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
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diff
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|
1557 // set_use_compressed_oops(). |
740e263c80c6
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|
1558 set_use_compressed_klass_ptrs(); |
740e263c80c6
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|
1559 |
113
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|
1560 // Also checks that certain machines are slower with compressed oops |
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|
1561 // in vm_version initialization code. |
ba764ed4b6f2
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|
1562 #endif // _LP64 |
1010 | 1563 #endif // !ZERO |
0 | 1564 } |
1565 | |
1566 void Arguments::set_parallel_gc_flags() { | |
342
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|
1567 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1568 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1569 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1570 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1571 } |
4879 | 1572 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1573 |
1574 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1575 // of the physical memory, up to a maximum of 1GB. | |
7471
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
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|
1576 FLAG_SET_DEFAULT(ParallelGCThreads, |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
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|
1577 Abstract_VM_Version::parallel_worker_threads()); |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
changeset
|
1578 if (ParallelGCThreads == 0) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
changeset
|
1579 jio_fprintf(defaultStream::error_stream(), |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1580 "The Parallel GC can not be combined with -XX:ParallelGCThreads=0\n"); |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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diff
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|
1581 vm_exit(1); |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1582 } |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
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diff
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|
1583 |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
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|
1584 if (UseAdaptiveSizePolicy) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
changeset
|
1585 // We don't want to limit adaptive heap sizing's freedom to adjust the heap |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
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|
1586 // unless the user actually sets these flags. |
44315152d434
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14309
diff
changeset
|
1587 if (FLAG_IS_DEFAULT(MinHeapFreeRatio)) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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diff
changeset
|
1588 FLAG_SET_DEFAULT(MinHeapFreeRatio, 0); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
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|
1589 } |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
changeset
|
1590 if (FLAG_IS_DEFAULT(MaxHeapFreeRatio)) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
changeset
|
1591 FLAG_SET_DEFAULT(MaxHeapFreeRatio, 100); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
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14309
diff
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|
1592 } |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
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14309
diff
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|
1593 } |
7471
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1594 |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1595 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
parents:
7453
diff
changeset
|
1596 // SurvivorRatio has been set, reset their default values to SurvivorRatio + |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
parents:
7453
diff
changeset
|
1597 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1598 // See CR 6362902 for details. |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1599 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1600 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1601 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); |
0 | 1602 } |
7471
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1603 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1604 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
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|
1605 } |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1606 } |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
parents:
7453
diff
changeset
|
1607 |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1608 if (UseParallelOldGC) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
parents:
7453
diff
changeset
|
1609 // Par compact uses lower default values since they are treated as |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
parents:
7453
diff
changeset
|
1610 // minimums. These are different defaults because of the different |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
parents:
7453
diff
changeset
|
1611 // interpretation and are not ergonomically set. |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
changeset
|
1612 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
4c8bf5e55392
8005489: VM hangs during GC with ParallelGC and ParallelGCThreads=0
brutisso
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7453
diff
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|
1613 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1614 } |
1615 } | |
1616 } | |
1617 | |
342
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6711316: Open source the Garbage-First garbage collector
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|
1618 void Arguments::set_g1_gc_flags() { |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
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|
1619 assert(UseG1GC, "Error"); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
changeset
|
1620 #ifdef COMPILER1 |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
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|
1621 FastTLABRefill = false; |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
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|
1622 #endif |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
changeset
|
1623 FLAG_SET_DEFAULT(ParallelGCThreads, |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
changeset
|
1624 Abstract_VM_Version::parallel_worker_threads()); |
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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135
diff
changeset
|
1625 if (ParallelGCThreads == 0) { |
37f87013dfd8
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135
diff
changeset
|
1626 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1627 Abstract_VM_Version::parallel_worker_threads()); |
342
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|
1628 } |
751 | 1629 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
diff
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|
1630 // 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
johnc
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7177
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|
1631 // when concurrent marking is initialized. |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
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|
1632 // Its value will be based upon the number of parallel marking threads. |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
diff
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|
1633 // But we do set the maximum mark stack size here. |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
changeset
|
1634 if (FLAG_IS_DEFAULT(MarkStackSizeMax)) { |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
changeset
|
1635 FLAG_SET_DEFAULT(MarkStackSizeMax, 128 * TASKQUEUE_SIZE); |
1284 | 1636 } |
1356 | 1637 |
1638 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1639 // In G1, we want the default GC overhead goal to be higher than | |
1640 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1641 // be expanded more aggressively than we would like it to. In | |
1642 // fact, even 10% seems to not be high enough in some cases | |
1643 // (especially small GC stress tests that the main thing they do | |
1644 // is allocation). We might consider increase it further. | |
1645 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1646 } | |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
changeset
|
1647 |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
1648 if (PrintGCDetails && Verbose) { |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
changeset
|
1649 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
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7177
diff
changeset
|
1650 MarkStackSize / K, MarkStackSizeMax / K); |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
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7177
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|
1651 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); |
442f942757c0
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|
1652 } |
342
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|
1653 } |
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|
1654 |
8854
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1655 julong Arguments::limit_by_allocatable_memory(julong limit) { |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
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|
1656 julong max_allocatable; |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1657 julong result = limit; |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8824
diff
changeset
|
1658 if (os::has_allocatable_memory_limit(&max_allocatable)) { |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1659 result = MIN2(result, max_allocatable / MaxVirtMemFraction); |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
changeset
|
1660 } |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8824
diff
changeset
|
1661 return result; |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
parents:
8824
diff
changeset
|
1662 } |
754c24457b20
7112912: Message "Error occurred during initialization of VM" on boxes with lots of RAM
tschatzl
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8824
diff
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|
1663 |
1064 | 1664 void Arguments::set_heap_size() { |
1665 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1666 // Deprecated flag | |
1667 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1668 } | |
1669 | |
1670 const julong phys_mem = | |
1671 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1672 : (julong)MaxRAM; | |
1673 | |
1674 // If the maximum heap size has not been set with -Xmx, | |
1675 // then set it as fraction of the size of physical memory, | |
1676 // respecting the maximum and minimum sizes of the heap. | |
342
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|
1677 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1678 julong reasonable_max = phys_mem / MaxRAMFraction; |
1679 | |
1680 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1681 // Small physical memory, so use a minimum fraction of it for the heap | |
1682 reasonable_max = phys_mem / MinRAMFraction; | |
1683 } else { | |
1684 // Not-small physical memory, so require a heap at least | |
1685 // as large as MaxHeapSize | |
1686 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1687 } | |
1688 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1689 // Limit the heap size to ErgoHeapSizeLimit | |
1690 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
342
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|
1691 } |
1064 | 1692 if (UseCompressedOops) { |
1693 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1694 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1695 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1696 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1697 // but it should be not less than default MaxHeapSize. | |
1698 max_coop_heap -= HeapBaseMinAddress; | |
1699 } | |
1700 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1701 } |
8854
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|
1702 reasonable_max = limit_by_allocatable_memory(reasonable_max); |
1064 | 1703 |
1704 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1705 // An initial heap size was specified on the command line, | |
1706 // so be sure that the maximum size is consistent. Done | |
8854
754c24457b20
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|
1707 // after call to limit_by_allocatable_memory because that |
1064 | 1708 // method might reduce the allocation size. |
1709 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1710 } | |
1711 | |
342
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6711316: Open source the Garbage-First garbage collector
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|
1712 if (PrintGCDetails && Verbose) { |
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|
1713 // Cannot use gclog_or_tty yet. |
1064 | 1714 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
342
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|
1715 } |
1064 | 1716 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1717 } | |
1718 | |
10241
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|
1719 // If the minimum or initial heap_size have not been set or requested to be set |
d17700c82d7d
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|
1720 // ergonomically, set them accordingly. |
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|
1721 if (InitialHeapSize == 0 || min_heap_size() == 0) { |
1074
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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1069
diff
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|
1722 julong reasonable_minimum = (julong)(OldSize + NewSize); |
84cb6f20afb3
6900899: vm fails to start when -Xmx value is less than OldSize + NewSize
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|
1723 |
84cb6f20afb3
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|
1724 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
84cb6f20afb3
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|
1725 |
8854
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|
1726 reasonable_minimum = limit_by_allocatable_memory(reasonable_minimum); |
1074
84cb6f20afb3
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|
1727 |
10241
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changeset
|
1728 if (InitialHeapSize == 0) { |
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changeset
|
1729 julong reasonable_initial = phys_mem / InitialRAMFraction; |
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|
1730 |
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|
1731 reasonable_initial = MAX3(reasonable_initial, reasonable_minimum, (julong)min_heap_size()); |
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|
1732 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
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|
1733 |
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|
1734 reasonable_initial = limit_by_allocatable_memory(reasonable_initial); |
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|
1735 |
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|
1736 if (PrintGCDetails && Verbose) { |
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|
1737 // Cannot use gclog_or_tty yet. |
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|
1738 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); |
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|
1739 } |
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|
1740 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
342
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|
1741 } |
10241
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|
1742 // If the minimum heap size has not been set (via -Xms), |
d17700c82d7d
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|
1743 // synchronize with InitialHeapSize to avoid errors with the default value. |
d17700c82d7d
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diff
changeset
|
1744 if (min_heap_size() == 0) { |
d17700c82d7d
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diff
changeset
|
1745 set_min_heap_size(MIN2((uintx)reasonable_minimum, InitialHeapSize)); |
d17700c82d7d
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|
1746 if (PrintGCDetails && Verbose) { |
d17700c82d7d
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changeset
|
1747 // Cannot use gclog_or_tty yet. |
d17700c82d7d
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changeset
|
1748 tty->print_cr(" Minimum heap size " SIZE_FORMAT, min_heap_size()); |
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|
1749 } |
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|
1750 } |
342
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diff
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|
1751 } |
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|
1752 } |
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|
1753 |
0 | 1754 // This must be called after ergonomics because we want bytecode rewriting |
1755 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1756 void Arguments::set_bytecode_flags() { | |
1757 // Better not attempt to store into a read-only space. | |
1758 if (UseSharedSpaces) { | |
1759 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1760 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1761 } | |
1762 | |
1763 if (!RewriteBytecodes) { | |
1764 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1765 } | |
1766 } | |
1767 | |
1768 // Aggressive optimization flags -XX:+AggressiveOpts | |
1769 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
|
1770 #ifdef COMPILER2 |
10278 | 1771 if (AggressiveUnboxing) { |
1772 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { | |
1773 FLAG_SET_DEFAULT(EliminateAutoBox, true); | |
1774 } else if (!EliminateAutoBox) { | |
1775 // warning("AggressiveUnboxing is disabled because EliminateAutoBox is disabled"); | |
1776 AggressiveUnboxing = false; | |
1777 } | |
1778 if (FLAG_IS_DEFAULT(DoEscapeAnalysis)) { | |
1779 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1780 } else if (!DoEscapeAnalysis) { | |
1781 // warning("AggressiveUnboxing is disabled because DoEscapeAnalysis is disabled"); | |
1782 AggressiveUnboxing = false; | |
1783 } | |
1784 } | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1785 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1786 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
|
1787 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
|
1788 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1789 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
|
1790 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1791 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1792 |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1793 // 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
|
1794 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1795 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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parents:
0
diff
changeset
|
1796 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1797 } |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1798 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1799 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1800 } |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1801 #endif |
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6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1802 |
0 | 1803 if (AggressiveOpts) { |
61 | 1804 // Sample flag setting code |
1805 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1806 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1807 // } | |
0 | 1808 } |
1809 } | |
1810 | |
1811 //=========================================================================================================== | |
1812 // Parsing of java.compiler property | |
1813 | |
1814 void Arguments::process_java_compiler_argument(char* arg) { | |
1815 // For backwards compatibility, Djava.compiler=NONE or "" | |
1816 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1817 // is also specified. | |
1818 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1819 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1820 } | |
1821 } | |
1822 | |
1823 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1824 _sun_java_launcher = strdup(launcher); | |
1825 } | |
1826 | |
1827 bool Arguments::created_by_java_launcher() { | |
1828 assert(_sun_java_launcher != NULL, "property must have value"); | |
1829 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1830 } | |
1831 | |
14317
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14282
diff
changeset
|
1832 bool Arguments::sun_java_launcher_is_altjvm() { |
b59507f713e0
8027113: decouple the '-XXaltjvm=<path>' option from the gamma launcher
rdurbin
parents:
14282
diff
changeset
|
1833 return _sun_java_launcher_is_altjvm; |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1834 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
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parents:
2243
diff
changeset
|
1835 |
0 | 1836 //=========================================================================================================== |
1837 // Parsing of main arguments | |
1838 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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parents:
1188
diff
changeset
|
1839 bool Arguments::verify_interval(uintx val, uintx min, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1840 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1841 // Returns true iff value is in the inclusive interval [min..max] |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1842 // false, otherwise. |
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diff
changeset
|
1843 if (val >= min && val <= max) { |
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6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1844 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
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|
1845 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1846 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1847 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1848 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
changeset
|
1849 name, val, min, max); |
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diff
changeset
|
1850 return false; |
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6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1851 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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diff
changeset
|
1852 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1853 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
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2362
diff
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|
1854 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1855 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1856 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
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|
1857 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1858 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1859 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
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2362
diff
changeset
|
1860 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
diff
changeset
|
1861 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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diff
changeset
|
1862 return false; |
f8c5d1bdaad4
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1681
diff
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|
1863 } |
f8c5d1bdaad4
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1681
diff
changeset
|
1864 |
0 | 1865 bool Arguments::verify_percentage(uintx value, const char* name) { |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
1866 if (is_percentage(value)) { |
0 | 1867 return true; |
1868 } | |
1869 jio_fprintf(defaultStream::error_stream(), | |
1870 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1871 name, value); | |
1872 return false; | |
1873 } | |
1874 | |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1875 #if !INCLUDE_ALL_GCS |
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
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8847
diff
changeset
|
1876 #ifdef ASSERT |
0 | 1877 static bool verify_serial_gc_flags() { |
1878 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1879 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
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parents:
135
diff
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|
1880 UseParallelGC || UseParallelOldGC)); |
0 | 1881 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
1882 #endif // ASSERT |
cc32ccaaf47f
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mikael
parents:
8847
diff
changeset
|
1883 #endif // INCLUDE_ALL_GCS |
0 | 1884 |
3767
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1885 // check if do gclog rotation |
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1886 // +UseGCLogFileRotation is a must, |
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1887 // no gc log rotation when log file not supplied or |
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1888 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
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1889 void check_gclog_consistency() { |
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1890 if (UseGCLogFileRotation) { |
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1891 if ((Arguments::gc_log_filename() == NULL) || |
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1892 (NumberOfGCLogFiles == 0) || |
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1893 (GCLogFileSize == 0)) { |
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1894 jio_fprintf(defaultStream::output_stream(), |
12215 | 1895 "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" |
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1896 "where num_of_file > 0 and num_of_size > 0\n" |
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1897 "GC log rotation is turned off\n"); |
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1898 UseGCLogFileRotation = false; |
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1899 } |
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1900 } |
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1901 |
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1902 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
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1903 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
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1904 jio_fprintf(defaultStream::output_stream(), |
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1905 "GCLogFileSize changed to minimum 8K\n"); |
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1906 } |
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1907 } |
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1908 |
12215 | 1909 // This function is called for -Xloggc:<filename>, it can be used |
1910 // to check if a given file name(or string) conforms to the following | |
1911 // specification: | |
1912 // A valid string only contains "[A-Z][a-z][0-9].-_%[p|t]" | |
1913 // %p and %t only allowed once. We only limit usage of filename not path | |
1914 bool is_filename_valid(const char *file_name) { | |
1915 const char* p = file_name; | |
1916 char file_sep = os::file_separator()[0]; | |
1917 const char* cp; | |
1918 // skip prefix path | |
1919 for (cp = file_name; *cp != '\0'; cp++) { | |
1920 if (*cp == '/' || *cp == file_sep) { | |
1921 p = cp + 1; | |
1922 } | |
1923 } | |
1924 | |
1925 int count_p = 0; | |
1926 int count_t = 0; | |
1927 while (*p != '\0') { | |
1928 if ((*p >= '0' && *p <= '9') || | |
1929 (*p >= 'A' && *p <= 'Z') || | |
1930 (*p >= 'a' && *p <= 'z') || | |
1931 *p == '-' || | |
1932 *p == '_' || | |
1933 *p == '.') { | |
1934 p++; | |
1935 continue; | |
1936 } | |
1937 if (*p == '%') { | |
1938 if(*(p + 1) == 'p') { | |
1939 p += 2; | |
1940 count_p ++; | |
1941 continue; | |
1942 } | |
1943 if (*(p + 1) == 't') { | |
1944 p += 2; | |
1945 count_t ++; | |
1946 continue; | |
1947 } | |
1948 } | |
1949 return false; | |
1950 } | |
1951 return count_p < 2 && count_t < 2; | |
1952 } | |
1953 | |
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1954 bool Arguments::verify_MinHeapFreeRatio(FormatBuffer<80>& err_msg, uintx min_heap_free_ratio) { |
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1955 if (!is_percentage(min_heap_free_ratio)) { |
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1956 err_msg.print("MinHeapFreeRatio must have a value between 0 and 100"); |
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1957 return false; |
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1958 } |
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1959 if (min_heap_free_ratio > MaxHeapFreeRatio) { |
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1960 err_msg.print("MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " |
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1961 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")", min_heap_free_ratio, |
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1962 MaxHeapFreeRatio); |
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1963 return false; |
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1964 } |
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1965 return true; |
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1966 } |
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1967 |
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1968 bool Arguments::verify_MaxHeapFreeRatio(FormatBuffer<80>& err_msg, uintx max_heap_free_ratio) { |
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1969 if (!is_percentage(max_heap_free_ratio)) { |
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1970 err_msg.print("MaxHeapFreeRatio must have a value between 0 and 100"); |
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1971 return false; |
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1972 } |
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1973 if (max_heap_free_ratio < MinHeapFreeRatio) { |
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1974 err_msg.print("MaxHeapFreeRatio (" UINTX_FORMAT ") must be greater than or " |
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1975 "equal to MinHeapFreeRatio (" UINTX_FORMAT ")", max_heap_free_ratio, |
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1976 MinHeapFreeRatio); |
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1977 return false; |
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1978 } |
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1979 return true; |
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1980 } |
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1981 |
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1982 // Check consistency of GC selection |
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1983 bool Arguments::check_gc_consistency() { |
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1984 check_gclog_consistency(); |
10
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1985 bool status = true; |
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1986 // Ensure that the user has not selected conflicting sets |
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1987 // of collectors. [Note: this check is merely a user convenience; |
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1988 // collectors over-ride each other so that only a non-conflicting |
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1989 // set is selected; however what the user gets is not what they |
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1990 // may have expected from the combination they asked for. It's |
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1991 // better to reduce user confusion by not allowing them to |
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1992 // select conflicting combinations. |
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1993 uint i = 0; |
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1994 if (UseSerialGC) i++; |
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1995 if (UseConcMarkSweepGC || UseParNewGC) i++; |
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1996 if (UseParallelGC || UseParallelOldGC) i++; |
845
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1997 if (UseG1GC) i++; |
10
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1998 if (i > 1) { |
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1999 jio_fprintf(defaultStream::error_stream(), |
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2000 "Conflicting collector combinations in option list; " |
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2001 "please refer to the release notes for the combinations " |
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2002 "allowed\n"); |
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2003 status = false; |
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2004 } |
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2005 return status; |
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2006 } |
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2007 |
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2008 void Arguments::check_deprecated_gcs() { |
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2009 if (UseConcMarkSweepGC && !UseParNewGC) { |
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2010 warning("Using the DefNew young collector with the CMS collector is deprecated " |
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2011 "and will likely be removed in a future release"); |
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2012 } |
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2013 |
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2014 if (UseParNewGC && !UseConcMarkSweepGC) { |
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2015 // !UseConcMarkSweepGC means that we are using serial old gc. Unfortunately we don't |
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2016 // set up UseSerialGC properly, so that can't be used in the check here. |
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2017 warning("Using the ParNew young collector with the Serial old collector is deprecated " |
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2018 "and will likely be removed in a future release"); |
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2019 } |
7453 | 2020 |
2021 if (CMSIncrementalMode) { | |
2022 warning("Using incremental CMS is deprecated and will likely be removed in a future release"); | |
2023 } | |
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2024 } |
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2025 |
8734 | 2026 void Arguments::check_deprecated_gc_flags() { |
2027 if (FLAG_IS_CMDLINE(MaxGCMinorPauseMillis)) { | |
2028 warning("Using MaxGCMinorPauseMillis as minor pause goal is deprecated" | |
2029 "and will likely be removed in future release"); | |
2030 } | |
11977 | 2031 if (FLAG_IS_CMDLINE(DefaultMaxRAMFraction)) { |
2032 warning("DefaultMaxRAMFraction is deprecated and will likely be removed in a future release. " | |
2033 "Use MaxRAMFraction instead."); | |
2034 } | |
13008
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2035 if (FLAG_IS_CMDLINE(UseCMSCompactAtFullCollection)) { |
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2036 warning("UseCMSCompactAtFullCollection is deprecated and will likely be removed in a future release."); |
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2037 } |
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2038 if (FLAG_IS_CMDLINE(CMSFullGCsBeforeCompaction)) { |
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2039 warning("CMSFullGCsBeforeCompaction is deprecated and will likely be removed in a future release."); |
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2040 } |
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2041 if (FLAG_IS_CMDLINE(UseCMSCollectionPassing)) { |
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2042 warning("UseCMSCollectionPassing is deprecated and will likely be removed in a future release."); |
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2043 } |
8734 | 2044 } |
2045 | |
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2046 // Check stack pages settings |
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2047 bool Arguments::check_stack_pages() |
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2048 { |
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2049 bool status = true; |
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2050 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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2051 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
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2052 // greater stack shadow pages can't generate instruction to bang stack |
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2053 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
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2054 return status; |
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2055 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
2056 |
0 | 2057 // Check the consistency of vm_init_args |
2058 bool Arguments::check_vm_args_consistency() { | |
2059 // Method for adding checks for flag consistency. | |
2060 // The intent is to warn the user of all possible conflicts, | |
2061 // before returning an error. | |
2062 // Note: Needs platform-dependent factoring. | |
2063 bool status = true; | |
2064 | |
2065 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
2066 // builds so the cost of stack banging can be measured. | |
2067 #if (defined(PRODUCT) && defined(SOLARIS)) | |
2068 if (!UseBoundThreads && !UseStackBanging) { | |
2069 jio_fprintf(defaultStream::error_stream(), | |
2070 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
2071 | |
2072 status = false; | |
2073 } | |
2074 #endif | |
2075 | |
2076 if (TLABRefillWasteFraction == 0) { | |
2077 jio_fprintf(defaultStream::error_stream(), | |
2078 "TLABRefillWasteFraction should be a denominator, " | |
2079 "not " SIZE_FORMAT "\n", | |
2080 TLABRefillWasteFraction); | |
2081 status = false; | |
2082 } | |
2083 | |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
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10246
diff
changeset
|
2084 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100, |
0 | 2085 "AdaptiveSizePolicyWeight"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2086 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
0 | 2087 |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2088 // Divide by bucket size to prevent a large size from causing rollover when |
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2089 // calculating amount of memory needed to be allocated for the String table. |
10126
63e31ce40bdb
8009928: PSR:PERF Increase default string table size
hseigel
parents:
9077
diff
changeset
|
2090 status = status && verify_interval(StringTableSize, minimumStringTableSize, |
6982
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2091 (max_uintx / StringTable::bucket_size()), "StringTable size"); |
e4f764ddb06a
7122219: Passed StringTableSize value not verified
hseigel
parents:
6928
diff
changeset
|
2092 |
12825
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
2093 status = status && verify_interval(SymbolTableSize, minimumSymbolTableSize, |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
2094 (max_uintx / SymbolTable::bucket_size()), "SymbolTable size"); |
c90e76575b03
8019375: Internal symbol table size should be tunable.
kevinw
parents:
12326
diff
changeset
|
2095 |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2096 { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2097 // Using "else if" below to avoid printing two error messages if min > max. |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2098 // This will also prevent us from reporting both min>100 and max>100 at the |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2099 // same time, but that is less annoying than printing two identical errors IMHO. |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2100 FormatBuffer<80> err_msg(""); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2101 if (!verify_MinHeapFreeRatio(err_msg, MinHeapFreeRatio)) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2102 jio_fprintf(defaultStream::error_stream(), "%s\n", err_msg.buffer()); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2103 status = false; |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2104 } else if (!verify_MaxHeapFreeRatio(err_msg, MaxHeapFreeRatio)) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2105 jio_fprintf(defaultStream::error_stream(), "%s\n", err_msg.buffer()); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2106 status = false; |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2107 } |
0 | 2108 } |
2109 | |
8040
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2110 // Min/MaxMetaspaceFreeRatio |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2111 status = status && verify_percentage(MinMetaspaceFreeRatio, "MinMetaspaceFreeRatio"); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2112 status = status && verify_percentage(MaxMetaspaceFreeRatio, "MaxMetaspaceFreeRatio"); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2113 |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2114 if (MinMetaspaceFreeRatio > MaxMetaspaceFreeRatio) { |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2115 jio_fprintf(defaultStream::error_stream(), |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2116 "MinMetaspaceFreeRatio (%s" UINTX_FORMAT ") must be less than or " |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2117 "equal to MaxMetaspaceFreeRatio (%s" UINTX_FORMAT ")\n", |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2118 FLAG_IS_DEFAULT(MinMetaspaceFreeRatio) ? "Default: " : "", |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2119 MinMetaspaceFreeRatio, |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2120 FLAG_IS_DEFAULT(MaxMetaspaceFreeRatio) ? "Default: " : "", |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2121 MaxMetaspaceFreeRatio); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2122 status = false; |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2123 } |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2124 |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2125 // Trying to keep 100% free is not practical |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2126 MinMetaspaceFreeRatio = MIN2(MinMetaspaceFreeRatio, (uintx) 99); |
a83cd101fd62
8005452: NPG: Create new flags for Metaspace resizing policy
jmasa
parents:
8037
diff
changeset
|
2127 |
0 | 2128 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { |
2129 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
2130 } | |
2131 | |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2132 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2133 // Settings to encourage splitting. |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2134 if (!FLAG_IS_CMDLINE(NewRatio)) { |
8035 | 2135 FLAG_SET_CMDLINE(uintx, NewRatio, 2); |
483
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2136 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2137 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2138 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2139 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2140 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
changeset
|
2141 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2142 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2143 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 2144 if (GCTimeLimit == 100) { |
2145 // Turn off gc-overhead-limit-exceeded checks | |
2146 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
2147 } | |
2148 | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2149 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
|
2150 status = status && check_stack_pages(); |
0 | 2151 |
2152 if (CMSIncrementalMode) { | |
2153 if (!UseConcMarkSweepGC) { | |
2154 jio_fprintf(defaultStream::error_stream(), | |
2155 "error: invalid argument combination.\n" | |
2156 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
2157 "selected in order\nto use CMSIncrementalMode.\n"); | |
2158 status = false; | |
2159 } else { | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2160 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 2161 "CMSIncrementalDutyCycle"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2162 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 2163 "CMSIncrementalDutyCycleMin"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2164 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 2165 "CMSIncrementalSafetyFactor"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2166 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 2167 "CMSIncrementalOffset"); |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
2168 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 2169 "CMSExpAvgFactor"); |
2170 // If it was not set on the command line, set | |
2171 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
2172 if (CMSInitiatingOccupancyFraction < 0) { | |
2173 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
2174 } | |
2175 } | |
2176 } | |
2177 | |
2178 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
2179 // insists that we hold the requisite locks so that the iteration is | |
2180 // MT-safe. For the verification at start-up and shut-down, we don't | |
2181 // yet have a good way of acquiring and releasing these locks, | |
2182 // which are not visible at the CollectedHeap level. We want to | |
2183 // be able to acquire these locks and then do the iteration rather | |
2184 // than just disable the lock verification. This will be fixed under | |
2185 // bug 4788986. | |
2186 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2187 if (VerifyDuringStartup) { |
0 | 2188 warning("Heap verification at start-up disabled " |
2189 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2190 VerifyDuringStartup = false; // Disable verification at start-up |
0 | 2191 } |
9071
68fe50d4f1d5
8011343: Add new flag for verifying the heap during startup
johnc
parents:
8859
diff
changeset
|
2192 |
0 | 2193 if (VerifyBeforeExit) { |
2194 warning("Heap verification at shutdown disabled " | |
2195 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
2196 VerifyBeforeExit = false; // Disable verification at shutdown | |
2197 } | |
2198 } | |
2199 | |
2200 // Note: only executed in non-PRODUCT mode | |
2201 if (!UseAsyncConcMarkSweepGC && | |
2202 (ExplicitGCInvokesConcurrent || | |
2203 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
2204 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
|
2205 "error: +ExplicitGCInvokesConcurrent[AndUnloadsClasses] conflicts" |
0 | 2206 " with -UseAsyncConcMarkSweepGC"); |
2207 status = false; | |
2208 } | |
2209 | |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
2210 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
|
2211 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2212 #if INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2213 if (UseG1GC) { |
13060
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2214 status = status && verify_percentage(G1NewSizePercent, "G1NewSizePercent"); |
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2215 status = status && verify_percentage(G1MaxNewSizePercent, "G1MaxNewSizePercent"); |
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2216 status = status && verify_interval(G1NewSizePercent, 0, G1MaxNewSizePercent, "G1NewSizePercent"); |
8f07aa079343
8016309: assert(eden_size > 0 && survivor_size > 0) failed: just checking
jwilhelm
parents:
13059
diff
changeset
|
2217 |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2218 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2219 "InitiatingHeapOccupancyPercent"); |
2174
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2220 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2221 "G1RefProcDrainInterval"); |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2222 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
234761c55641
6608385: G1: need to support parallel reference processing
johnc
parents:
2129
diff
changeset
|
2223 "G1ConcMarkStepDurationMillis"); |
10246
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2224 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
|
2225 "G1ConcRSHotCardLimit"); |
194f52aa2f23
7176479: G1: JVM crashes on T5-8 system with 1.5 TB heap
johnc
parents:
10241
diff
changeset
|
2226 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
|
2227 "G1ConcRSLogCacheSize"); |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2228 } |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2229 if (UseConcMarkSweepGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2230 status = status && verify_min_value(CMSOldPLABNumRefills, 1, "CMSOldPLABNumRefills"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2231 status = status && verify_min_value(CMSOldPLABToleranceFactor, 1, "CMSOldPLABToleranceFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2232 status = status && verify_min_value(CMSOldPLABMax, 1, "CMSOldPLABMax"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2233 status = status && verify_interval(CMSOldPLABMin, 1, CMSOldPLABMax, "CMSOldPLABMin"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2234 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2235 status = status && verify_min_value(CMSYoungGenPerWorker, 1, "CMSYoungGenPerWorker"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2236 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2237 status = status && verify_min_value(CMSSamplingGrain, 1, "CMSSamplingGrain"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2238 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
|
2239 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
|
2240 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2241 status = status && verify_interval(FLSCoalescePolicy, 0, 4, "FLSCoalescePolicy"); |
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(CMSRescanMultiple, 1, "CMSRescanMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2244 status = status && verify_min_value(CMSConcMarkMultiple, 1, "CMSConcMarkMultiple"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2245 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2246 status = status && verify_interval(CMSPrecleanIter, 0, 9, "CMSPrecleanIter"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2247 status = status && verify_min_value(CMSPrecleanDenominator, 1, "CMSPrecleanDenominator"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2248 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
|
2249 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2250 status = status && verify_percentage(CMSBootstrapOccupancy, "CMSBootstrapOccupancy"); |
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(CMSPrecleanThreshold, 100, "CMSPrecleanThreshold"); |
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_percentage(CMSScheduleRemarkEdenPenetration, "CMSScheduleRemarkEdenPenetration"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2255 status = status && verify_min_value(CMSScheduleRemarkSamplingRatio, 1, "CMSScheduleRemarkSamplingRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2256 status = status && verify_min_value(CMSBitMapYieldQuantum, 1, "CMSBitMapYieldQuantum"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2257 status = status && verify_percentage(CMSTriggerRatio, "CMSTriggerRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2258 status = status && verify_percentage(CMSIsTooFullPercentage, "CMSIsTooFullPercentage"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2259 } |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2260 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2261 if (UseParallelGC || UseParallelOldGC) { |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2262 status = status && verify_interval(ParallelOldDeadWoodLimiterMean, 0, 100, "ParallelOldDeadWoodLimiterMean"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2263 status = status && verify_interval(ParallelOldDeadWoodLimiterStdDev, 0, 100, "ParallelOldDeadWoodLimiterStdDev"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2264 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2265 status = status && verify_percentage(YoungGenerationSizeIncrement, "YoungGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2266 status = status && verify_percentage(TenuredGenerationSizeIncrement, "TenuredGenerationSizeIncrement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2267 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2268 status = status && verify_min_value(YoungGenerationSizeSupplementDecay, 1, "YoungGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2269 status = status && verify_min_value(TenuredGenerationSizeSupplementDecay, 1, "TenuredGenerationSizeSupplementDecay"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2270 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2271 status = status && verify_min_value(ParGCCardsPerStrideChunk, 1, "ParGCCardsPerStrideChunk"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2272 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2273 status = status && verify_min_value(ParallelOldGCSplitInterval, 0, "ParallelOldGCSplitInterval"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2274 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
2275 #endif // INCLUDE_ALL_GCS |
1283
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
tonyp
parents:
1257
diff
changeset
|
2276 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2277 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2278 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2279 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2280 "RefDiscoveryPolicy"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2281 |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2282 // 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
|
2283 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2284 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2285 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
2286 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
2287 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
|
2288 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
2289 status = status && verify_interval(CompressedClassSpaceSize, 1*M, 3*G, |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
2290 "CompressedClassSpaceSize"); |
6736
11fb740ce98f
7196103: NPG: Unable to allocate bit map for parallel garbage collection for the requested heap size
coleenp
parents:
6725
diff
changeset
|
2291 |
7397
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2292 status = status && verify_interval(MarkStackSizeMax, |
442f942757c0
8000244: G1: Ergonomically set MarkStackSize and use virtual space for global marking stack
johnc
parents:
7177
diff
changeset
|
2293 1, (max_jint - 1), "MarkStackSizeMax"); |
10287
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2294 status = status && verify_interval(NUMAChunkResizeWeight, 0, 100, "NUMAChunkResizeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2295 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2296 status = status && verify_min_value(LogEventsBufferEntries, 1, "LogEventsBufferEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2297 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2298 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
|
2299 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2300 status = status && verify_min_value(GCTaskTimeStampEntries, 1, "GCTaskTimeStampEntries"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2301 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2302 status = status && verify_percentage(ParallelGCBufferWastePct, "ParallelGCBufferWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2303 status = status && verify_interval(TargetPLABWastePct, 1, 100, "TargetPLABWastePct"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2304 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2305 status = status && verify_min_value(ParGCStridesPerThread, 1, "ParGCStridesPerThread"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2306 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2307 status = status && verify_min_value(MinRAMFraction, 1, "MinRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2308 status = status && verify_min_value(InitialRAMFraction, 1, "InitialRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2309 status = status && verify_min_value(MaxRAMFraction, 1, "MaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2310 status = status && verify_min_value(DefaultMaxRAMFraction, 1, "DefaultMaxRAMFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2311 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2312 status = status && verify_interval(AdaptiveTimeWeight, 0, 100, "AdaptiveTimeWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2313 status = status && verify_min_value(AdaptiveSizeDecrementScaleFactor, 1, "AdaptiveSizeDecrementScaleFactor"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2314 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2315 status = status && verify_interval(TLABAllocationWeight, 0, 100, "TLABAllocationWeight"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2316 status = status && verify_min_value(MinTLABSize, 1, "MinTLABSize"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2317 status = status && verify_min_value(TLABRefillWasteFraction, 1, "TLABRefillWasteFraction"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2318 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2319 status = status && verify_percentage(YoungGenerationSizeSupplement, "YoungGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2320 status = status && verify_percentage(TenuredGenerationSizeSupplement, "TenuredGenerationSizeSupplement"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2321 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2322 // 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
|
2323 // just for that, so hardcode here. |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2324 status = status && verify_interval(MaxTenuringThreshold, 0, 15, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2325 status = status && verify_interval(InitialTenuringThreshold, 0, MaxTenuringThreshold, "MaxTenuringThreshold"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2326 status = status && verify_percentage(TargetSurvivorRatio, "TargetSurvivorRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2327 status = status && verify_percentage(MarkSweepDeadRatio, "MarkSweepDeadRatio"); |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2328 |
12f651e29f6b
6843347: Boundary values in some public GC options cause crashes
tschatzl
parents:
10246
diff
changeset
|
2329 status = status && verify_min_value(MarkSweepAlwaysCompactCount, 1, "MarkSweepAlwaysCompactCount"); |
6755
bc675e55b48c
7193946: Move warnings associated with UseMemSetInBOT flag
johnc
parents:
6736
diff
changeset
|
2330 |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2331 if (PrintNMTStatistics) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2332 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2333 if (MemTracker::tracking_level() == MemTracker::NMT_off) { |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2334 #endif // INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2335 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
|
2336 PrintNMTStatistics = false; |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2337 #if INCLUDE_NMT |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2338 } |
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2339 #endif |
6770
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2340 } |
9a86ddfc6c8f
7188594: Print statistic collected by NMT with VM flag
zgu
parents:
6736
diff
changeset
|
2341 |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2342 // Need to limit the extent of the padding to reasonable size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2343 // 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
|
2344 // aggressive prefetching, while still leaving the room for segregating |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2345 // among the distinct pages. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2346 if (ContendedPaddingWidth < 0 || ContendedPaddingWidth > 8192) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2347 jio_fprintf(defaultStream::error_stream(), |
12129 | 2348 "ContendedPaddingWidth=" INTX_FORMAT " must be in between %d and %d\n", |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2349 ContendedPaddingWidth, 0, 8192); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2350 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2351 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2352 |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2353 // Need to enforce the padding not to break the existing field alignments. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2354 // It is sufficient to check against the largest type size. |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2355 if ((ContendedPaddingWidth % BytesPerLong) != 0) { |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2356 jio_fprintf(defaultStream::error_stream(), |
12129 | 2357 "ContendedPaddingWidth=" INTX_FORMAT " must be a multiple of %d\n", |
10260
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2358 ContendedPaddingWidth, BytesPerLong); |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2359 status = false; |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2360 } |
711016f146fd
8006997: ContendedPaddingWidth should be range-checked
dholmes
parents:
10172
diff
changeset
|
2361 |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2362 // 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
|
2363 // Template Interpreter code is approximately 3X larger in debug builds. |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2364 uint min_code_cache_size = (CodeCacheMinimumUseSpace DEBUG_ONLY(* 3)) + CodeCacheMinimumFreeSpace; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2365 if (InitialCodeCacheSize < (uintx)os::vm_page_size()) { |
10392
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8013496: Code cache management command line options work only in special order. Another order of arguments does not deliver the second parameter to the jvm.
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10319
diff
changeset
|
2366 jio_fprintf(defaultStream::error_stream(), |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2367 "Invalid InitialCodeCacheSize=%dK. Must be at least %dK.\n", InitialCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2368 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2369 status = false; |
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8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2370 } else if (ReservedCodeCacheSize < InitialCodeCacheSize) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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diff
changeset
|
2371 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
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11006
diff
changeset
|
2372 "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.
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diff
changeset
|
2373 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.
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diff
changeset
|
2374 status = false; |
11079
738e04fb1232
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11006
diff
changeset
|
2375 } else if (ReservedCodeCacheSize < min_code_cache_size) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2376 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2377 "Invalid ReservedCodeCacheSize=%dK. Must be at least %uK.\n", ReservedCodeCacheSize/K, |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2378 min_code_cache_size/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
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11006
diff
changeset
|
2379 status = false; |
11109
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
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11083
diff
changeset
|
2380 } else if (ReservedCodeCacheSize > 2*G) { |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
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11083
diff
changeset
|
2381 // Code cache size larger than MAXINT is not supported. |
7ac80525ece9
8015635: Crash when specifying very large code cache size
anoll
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diff
changeset
|
2382 jio_fprintf(defaultStream::error_stream(), |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
changeset
|
2383 "Invalid ReservedCodeCacheSize=%dM. Must be at most %uM.\n", ReservedCodeCacheSize/M, |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
changeset
|
2384 (2*G)/M); |
7ac80525ece9
8015635: Crash when specifying very large code cache size
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11083
diff
changeset
|
2385 status = false; |
10392
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diff
changeset
|
2386 } |
12324
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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12322
diff
changeset
|
2387 |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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12322
diff
changeset
|
2388 status &= verify_interval(NmethodSweepFraction, 1, ReservedCodeCacheSize/K, "NmethodSweepFraction"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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parents:
12322
diff
changeset
|
2389 status &= verify_interval(NmethodSweepActivity, 0, 2000, "NmethodSweepActivity"); |
510fbd28919c
8020151: PSR:PERF Large performance regressions when code cache is filled
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12322
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|
2390 |
0 | 2391 return status; |
2392 } | |
2393 | |
2394 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
2395 const char* option_type) { | |
2396 if (ignore) return false; | |
2397 | |
2398 const char* spacer = " "; | |
2399 if (option_type == NULL) { | |
2400 option_type = ++spacer; // Set both to the empty string. | |
2401 } | |
2402 | |
2403 if (os::obsolete_option(option)) { | |
2404 jio_fprintf(defaultStream::error_stream(), | |
2405 "Obsolete %s%soption: %s\n", option_type, spacer, | |
2406 option->optionString); | |
2407 return false; | |
2408 } else { | |
2409 jio_fprintf(defaultStream::error_stream(), | |
2410 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2411 option->optionString); | |
2412 return true; | |
2413 } | |
2414 } | |
2415 | |
2416 static const char* user_assertion_options[] = { | |
2417 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2418 }; | |
2419 | |
2420 static const char* system_assertion_options[] = { | |
2421 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2422 }; | |
2423 | |
2424 // Return true if any of the strings in null-terminated array 'names' matches. | |
2425 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2426 // the option must match exactly. | |
2427 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2428 bool tail_allowed) { | |
2429 for (/* empty */; *names != NULL; ++names) { | |
2430 if (match_option(option, *names, tail)) { | |
2431 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2432 return true; | |
2433 } | |
2434 } | |
2435 } | |
2436 return false; | |
2437 } | |
2438 | |
1284 | 2439 bool Arguments::parse_uintx(const char* value, |
2440 uintx* uintx_arg, | |
2441 uintx min_size) { | |
2442 | |
2443 // Check the sign first since atomull() parses only unsigned values. | |
2444 bool value_is_positive = !(*value == '-'); | |
2445 | |
2446 if (value_is_positive) { | |
2447 julong n; | |
2448 bool good_return = atomull(value, &n); | |
2449 if (good_return) { | |
2450 bool above_minimum = n >= min_size; | |
2451 bool value_is_too_large = n > max_uintx; | |
2452 | |
2453 if (above_minimum && !value_is_too_large) { | |
2454 *uintx_arg = n; | |
2455 return true; | |
2456 } | |
2457 } | |
2458 } | |
2459 return false; | |
2460 } | |
2461 | |
0 | 2462 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
|
2463 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2464 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2465 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2466 return check_memory_size(*long_arg, min_size); |
2467 } | |
2468 | |
2469 // Parse JavaVMInitArgs structure | |
2470 | |
2471 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2472 // For components of the system classpath. | |
2473 SysClassPath scp(Arguments::get_sysclasspath()); | |
2474 bool scp_assembly_required = false; | |
2475 | |
2476 // Save default settings for some mode flags | |
2477 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2478 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2479 Arguments::_ClipInlining = ClipInlining; | |
2480 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2481 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2482 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2483 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2484 |
0 | 2485 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2486 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2487 if (result != JNI_OK) { | |
2488 return result; | |
2489 } | |
2490 | |
2491 // Parse JavaVMInitArgs structure passed in | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
2492 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, Flag::COMMAND_LINE); |
0 | 2493 if (result != JNI_OK) { |
2494 return result; | |
2495 } | |
2496 | |
2497 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) | |
2498 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2499 if (result != JNI_OK) { | |
2500 return result; | |
2501 } | |
2502 | |
2503 // Do final processing now that all arguments have been parsed | |
2504 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2505 if (result != JNI_OK) { | |
2506 return result; | |
2507 } | |
2508 | |
2509 return JNI_OK; | |
2510 } | |
2511 | |
10170
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2512 // Checks if name in command-line argument -agent{lib,path}:name[=options] |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2513 // represents a valid HPROF of JDWP agent. is_path==true denotes that we |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2514 // are dealing with -agentpath (case where name is a path), otherwise with |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2515 // -agentlib |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2516 bool valid_hprof_or_jdwp_agent(char *name, bool is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2517 char *_name; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2518 const char *_hprof = "hprof", *_jdwp = "jdwp"; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2519 size_t _len_hprof, _len_jdwp, _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2520 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2521 if (is_path) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2522 if ((_name = strrchr(name, (int) *os::file_separator())) == NULL) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2523 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2524 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2525 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2526 _name++; // skip past last path separator |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2527 _len_prefix = strlen(JNI_LIB_PREFIX); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2528 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2529 if (strncmp(_name, JNI_LIB_PREFIX, _len_prefix) != 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2530 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2531 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2532 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2533 _name += _len_prefix; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2534 _len_hprof = strlen(_hprof); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2535 _len_jdwp = strlen(_jdwp); |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2536 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2537 if (strncmp(_name, _hprof, _len_hprof) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2538 _name += _len_hprof; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2539 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2540 else if (strncmp(_name, _jdwp, _len_jdwp) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2541 _name += _len_jdwp; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2542 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2543 else { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2544 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2545 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2546 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2547 if (strcmp(_name, JNI_LIB_SUFFIX) != 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2548 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2549 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2550 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2551 return true; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2552 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2553 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2554 if (strcmp(name, _hprof) == 0 || strcmp(name, _jdwp) == 0) { |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2555 return true; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2556 } |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2557 |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2558 return false; |
3c0584fec1e6
8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
parents:
9077
diff
changeset
|
2559 } |
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
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9077
diff
changeset
|
2560 |
0 | 2561 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, |
2562 SysClassPath* scp_p, | |
2563 bool* scp_assembly_required_p, | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
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12269
diff
changeset
|
2564 Flag::Flags origin) { |
0 | 2565 // Remaining part of option string |
2566 const char* tail; | |
2567 | |
2568 // iterate over arguments | |
2569 for (int index = 0; index < args->nOptions; index++) { | |
2570 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2571 | |
2572 const JavaVMOption* option = args->options + index; | |
2573 | |
2574 if (!match_option(option, "-Djava.class.path", &tail) && | |
2575 !match_option(option, "-Dsun.java.command", &tail) && | |
2576 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2577 | |
2578 // add all jvm options to the jvm_args string. This string | |
2579 // is used later to set the java.vm.args PerfData string constant. | |
2580 // the -Djava.class.path and the -Dsun.java.command options are | |
2581 // omitted from jvm_args string as each have their own PerfData | |
2582 // string constant object. | |
2583 build_jvm_args(option->optionString); | |
2584 } | |
2585 | |
2586 // -verbose:[class/gc/jni] | |
2587 if (match_option(option, "-verbose", &tail)) { | |
2588 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2589 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2590 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2591 } else if (!strcmp(tail, ":gc")) { | |
2592 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2593 } else if (!strcmp(tail, ":jni")) { | |
2594 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2595 } | |
2596 // -da / -ea / -disableassertions / -enableassertions | |
2597 // These accept an optional class/package name separated by a colon, e.g., | |
2598 // -da:java.lang.Thread. | |
2599 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2600 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2601 if (*tail == '\0') { | |
2602 JavaAssertions::setUserClassDefault(enable); | |
2603 } else { | |
2604 assert(*tail == ':', "bogus match by match_option()"); | |
2605 JavaAssertions::addOption(tail + 1, enable); | |
2606 } | |
2607 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2608 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2609 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2610 JavaAssertions::setSystemClassDefault(enable); | |
2611 // -bootclasspath: | |
2612 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2613 scp_p->reset_path(tail); | |
2614 *scp_assembly_required_p = true; | |
2615 // -bootclasspath/a: | |
2616 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2617 scp_p->add_suffix(tail); | |
2618 *scp_assembly_required_p = true; | |
2619 // -bootclasspath/p: | |
2620 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2621 scp_p->add_prefix(tail); | |
2622 *scp_assembly_required_p = true; | |
2623 // -Xrun | |
2624 } else if (match_option(option, "-Xrun", &tail)) { | |
531
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|
2625 if (tail != NULL) { |
0 | 2626 const char* pos = strchr(tail, ':'); |
2627 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2628 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2629 name[len] = '\0'; |
2630 | |
2631 char *options = NULL; | |
2632 if(pos != NULL) { | |
2633 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2634 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2635 } |
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|
2636 #if !INCLUDE_JVMTI |
0 | 2637 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { |
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|
2638 jio_fprintf(defaultStream::error_stream(), |
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2639 "Profiling and debugging agents are not supported in this VM\n"); |
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|
2640 return JNI_ERR; |
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|
2641 } |
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|
2642 #endif // !INCLUDE_JVMTI |
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|
2643 add_init_library(name, options); |
0 | 2644 } |
2645 // -agentlib and -agentpath | |
2646 } else if (match_option(option, "-agentlib:", &tail) || | |
2647 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2648 if(tail != NULL) { | |
2649 const char* pos = strchr(tail, '='); | |
2650 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2651 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2652 name[len] = '\0'; |
2653 | |
2654 char *options = NULL; | |
2655 if(pos != NULL) { | |
6197 | 2656 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2657 } |
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|
2658 #if !INCLUDE_JVMTI |
10170
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8010428: Special -agentpath checks needed with minimal VM to produce proper error message
dholmes
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9077
diff
changeset
|
2659 if (valid_hprof_or_jdwp_agent(name, is_absolute_path)) { |
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|
2660 jio_fprintf(defaultStream::error_stream(), |
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|
2661 "Profiling and debugging agents are not supported in this VM\n"); |
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diff
changeset
|
2662 return JNI_ERR; |
fad90b102190
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diff
changeset
|
2663 } |
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|
2664 #endif // !INCLUDE_JVMTI |
0 | 2665 add_init_agent(name, options, is_absolute_path); |
2666 } | |
2667 // -javaagent | |
2668 } else if (match_option(option, "-javaagent:", &tail)) { | |
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|
2669 #if !INCLUDE_JVMTI |
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|
2670 jio_fprintf(defaultStream::error_stream(), |
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|
2671 "Instrumentation agents are not supported in this VM\n"); |
fad90b102190
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|
2672 return JNI_ERR; |
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|
2673 #else |
0 | 2674 if(tail != NULL) { |
6197 | 2675 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2676 add_init_agent("instrument", options, false); |
2677 } | |
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|
2678 #endif // !INCLUDE_JVMTI |
0 | 2679 // -Xnoclassgc |
2680 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2681 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2682 // -Xincgc: i-CMS | |
2683 } else if (match_option(option, "-Xincgc", &tail)) { | |
2684 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2685 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2686 // -Xnoincgc: no i-CMS | |
2687 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2688 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2689 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2690 // -Xconcgc | |
2691 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2692 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2693 // -Xnoconcgc | |
2694 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2695 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2696 // -Xbatch | |
2697 } else if (match_option(option, "-Xbatch", &tail)) { | |
2698 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2699 // -Xmn for compatibility with other JVM vendors | |
2700 } else if (match_option(option, "-Xmn", &tail)) { | |
12831 | 2701 julong long_initial_young_size = 0; |
2702 ArgsRange errcode = parse_memory_size(tail, &long_initial_young_size, 1); | |
0 | 2703 if (errcode != arg_in_range) { |
2704 jio_fprintf(defaultStream::error_stream(), | |
12831 | 2705 "Invalid initial young generation size: %s\n", option->optionString); |
0 | 2706 describe_range_error(errcode); |
2707 return JNI_EINVAL; | |
2708 } | |
12831 | 2709 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_young_size); |
2710 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_young_size); | |
0 | 2711 // -Xms |
2712 } else if (match_option(option, "-Xms", &tail)) { | |
489
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6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
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|
2713 julong long_initial_heap_size = 0; |
10241
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8006088: Incompatible heap size flags accepted by VM
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10240
diff
changeset
|
2714 // an initial heap size of 0 means automatically determine |
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diff
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|
2715 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 0); |
0 | 2716 if (errcode != arg_in_range) { |
2717 jio_fprintf(defaultStream::error_stream(), | |
2718 "Invalid initial heap size: %s\n", option->optionString); | |
2719 describe_range_error(errcode); | |
2720 return JNI_EINVAL; | |
2721 } | |
13059
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diff
changeset
|
2722 set_min_heap_size((uintx)long_initial_heap_size); |
0 | 2723 // Currently the minimum size and the initial heap sizes are the same. |
13059
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13008
diff
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|
2724 // Can be overridden with -XX:InitialHeapSize. |
46d7652b223c
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jwilhelm
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diff
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|
2725 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2726 // -Xmx |
10241
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|
2727 } else if (match_option(option, "-Xmx", &tail) || match_option(option, "-XX:MaxHeapSize=", &tail)) { |
489
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|
2728 julong long_max_heap_size = 0; |
0 | 2729 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2730 if (errcode != arg_in_range) { | |
2731 jio_fprintf(defaultStream::error_stream(), | |
2732 "Invalid maximum heap size: %s\n", option->optionString); | |
2733 describe_range_error(errcode); | |
2734 return JNI_EINVAL; | |
2735 } | |
1064 | 2736 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2737 // Xmaxf |
2738 } else if (match_option(option, "-Xmaxf", &tail)) { | |
12896
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8025661: Ill-formed -Xminf and -Xmaxf options values interpreted as 0
sjohanss
parents:
12840
diff
changeset
|
2739 char* err; |
027006a47a6d
8025661: Ill-formed -Xminf and -Xmaxf options values interpreted as 0
sjohanss
parents:
12840
diff
changeset
|
2740 int maxf = (int)(strtod(tail, &err) * 100); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2741 if (*err != '\0' || *tail == '\0' || maxf < 0 || maxf > 100) { |
0 | 2742 jio_fprintf(defaultStream::error_stream(), |
2743 "Bad max heap free percentage size: %s\n", | |
2744 option->optionString); | |
2745 return JNI_EINVAL; | |
2746 } else { | |
2747 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2748 } | |
2749 // Xminf | |
2750 } else if (match_option(option, "-Xminf", &tail)) { | |
12896
027006a47a6d
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sjohanss
parents:
12840
diff
changeset
|
2751 char* err; |
027006a47a6d
8025661: Ill-formed -Xminf and -Xmaxf options values interpreted as 0
sjohanss
parents:
12840
diff
changeset
|
2752 int minf = (int)(strtod(tail, &err) * 100); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
2753 if (*err != '\0' || *tail == '\0' || minf < 0 || minf > 100) { |
0 | 2754 jio_fprintf(defaultStream::error_stream(), |
2755 "Bad min heap free percentage size: %s\n", | |
2756 option->optionString); | |
2757 return JNI_EINVAL; | |
2758 } else { | |
2759 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2760 } | |
2761 // -Xss | |
2762 } else if (match_option(option, "-Xss", &tail)) { | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2763 julong long_ThreadStackSize = 0; |
0 | 2764 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2765 if (errcode != arg_in_range) { | |
2766 jio_fprintf(defaultStream::error_stream(), | |
2767 "Invalid thread stack size: %s\n", option->optionString); | |
2768 describe_range_error(errcode); | |
2769 return JNI_EINVAL; | |
2770 } | |
2771 // Internally track ThreadStackSize in units of 1024 bytes. | |
2772 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2773 round_to((int)long_ThreadStackSize, K) / K); | |
2774 // -Xoss | |
2775 } else if (match_option(option, "-Xoss", &tail)) { | |
2776 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
11079
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2777 } else if (match_option(option, "-XX:CodeCacheExpansionSize=", &tail)) { |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2778 julong long_CodeCacheExpansionSize = 0; |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2779 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
anoll
parents:
11006
diff
changeset
|
2780 if (errcode != arg_in_range) { |
738e04fb1232
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anoll
parents:
11006
diff
changeset
|
2781 jio_fprintf(defaultStream::error_stream(), |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2782 "Invalid argument: %s. Must be at least %luK.\n", option->optionString, |
738e04fb1232
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anoll
parents:
11006
diff
changeset
|
2783 os::vm_page_size()/K); |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
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diff
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|
2784 return JNI_EINVAL; |
738e04fb1232
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parents:
11006
diff
changeset
|
2785 } |
738e04fb1232
8014972: Crash with specific values for -XX:InitialCodeCacheSize=500K -XX:ReservedCodeCacheSize=500k
anoll
parents:
11006
diff
changeset
|
2786 FLAG_SET_CMDLINE(uintx, CodeCacheExpansionSize, (uintx)long_CodeCacheExpansionSize); |
2095
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2787 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
parents:
2002
diff
changeset
|
2788 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
2789 julong long_ReservedCodeCacheSize = 0; |
11079
738e04fb1232
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anoll
parents:
11006
diff
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|
2790 |
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
|
2791 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, 1); |
0 | 2792 if (errcode != arg_in_range) { |
2793 jio_fprintf(defaultStream::error_stream(), | |
10392
c07dd9be16e8
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anoll
parents:
10319
diff
changeset
|
2794 "Invalid maximum code cache size: %s.\n", option->optionString); |
0 | 2795 return JNI_EINVAL; |
2796 } | |
2797 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
|
2798 //-XX:IncreaseFirstTierCompileThresholdAt= |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2799 } 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
|
2800 uintx uint_IncreaseFirstTierCompileThresholdAt = 0; |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2801 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
|
2802 jio_fprintf(defaultStream::error_stream(), |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2803 "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
|
2804 option->optionString); |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2805 return JNI_EINVAL; |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2806 } |
91eba9f82325
8012371: Adjust Tiered compile threshold according to available space in code cache
anoll
parents:
10294
diff
changeset
|
2807 FLAG_SET_CMDLINE(uintx, IncreaseFirstTierCompileThresholdAt, (uintx)uint_IncreaseFirstTierCompileThresholdAt); |
0 | 2808 // -green |
2809 } else if (match_option(option, "-green", &tail)) { | |
2810 jio_fprintf(defaultStream::error_stream(), | |
2811 "Green threads support not available\n"); | |
2812 return JNI_EINVAL; | |
2813 // -native | |
2814 } else if (match_option(option, "-native", &tail)) { | |
2815 // HotSpot always uses native threads, ignore silently for compatibility | |
2816 // -Xsqnopause | |
2817 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2818 // EVM option, ignore silently for compatibility | |
2819 // -Xrs | |
2820 } else if (match_option(option, "-Xrs", &tail)) { | |
2821 // Classic/EVM option, new functionality | |
2822 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2823 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2824 // change default internal VM signals used - lower case for back compat | |
2825 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2826 // -Xoptimize | |
2827 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2828 // EVM option, ignore silently for compatibility | |
2829 // -Xprof | |
2830 } else if (match_option(option, "-Xprof", &tail)) { | |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2831 #if INCLUDE_FPROF |
0 | 2832 _has_profile = true; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
2833 #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
|
2834 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
|
2835 "Flat profiling is not supported in this VM.\n"); |
fad90b102190
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2836 return JNI_ERR; |
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2837 #endif // INCLUDE_FPROF |
0 | 2838 // -Xconcurrentio |
2839 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2840 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2841 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2842 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2843 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2844 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2845 | |
2846 // -Xinternalversion | |
2847 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2848 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2849 VM_Version::internal_vm_info_string()); | |
2850 vm_exit(0); | |
2851 #ifndef PRODUCT | |
2852 // -Xprintflags | |
2853 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2854 CommandLineFlags::printFlags(tty, false); |
0 | 2855 vm_exit(0); |
2856 #endif | |
2857 // -D | |
2858 } else if (match_option(option, "-D", &tail)) { | |
2859 if (!add_property(tail)) { | |
2860 return JNI_ENOMEM; | |
2861 } | |
2862 // Out of the box management support | |
2863 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
8081
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2864 #if INCLUDE_MANAGEMENT |
0 | 2865 FLAG_SET_CMDLINE(bool, ManagementServer, true); |
8081
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2866 #else |
8720
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2867 jio_fprintf(defaultStream::output_stream(), |
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2868 "-Dcom.sun.management is not supported in this VM.\n"); |
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2869 return JNI_ERR; |
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2870 #endif |
0 | 2871 } |
2872 // -Xint | |
2873 } else if (match_option(option, "-Xint", &tail)) { | |
2874 set_mode_flags(_int); | |
2875 // -Xmixed | |
2876 } else if (match_option(option, "-Xmixed", &tail)) { | |
2877 set_mode_flags(_mixed); | |
2878 // -Xcomp | |
2879 } else if (match_option(option, "-Xcomp", &tail)) { | |
2880 // for testing the compiler; turn off all flags that inhibit compilation | |
2881 set_mode_flags(_comp); | |
2882 // -Xshare:dump | |
2883 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2884 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2885 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2886 // -Xshare:on | |
2887 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2888 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2889 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2890 // -Xshare:auto | |
2891 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2892 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2893 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2894 // -Xshare:off | |
2895 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2896 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2897 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2898 // -Xverify | |
2899 } else if (match_option(option, "-Xverify", &tail)) { | |
2900 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2901 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2902 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2903 } else if (strcmp(tail, ":remote") == 0) { | |
2904 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2905 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2906 } else if (strcmp(tail, ":none") == 0) { | |
2907 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2908 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2909 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2910 return JNI_EINVAL; | |
2911 } | |
2912 // -Xdebug | |
2913 } else if (match_option(option, "-Xdebug", &tail)) { | |
2914 // note this flag has been used, then ignore | |
2915 set_xdebug_mode(true); | |
2916 // -Xnoagent | |
2917 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2918 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2919 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2920 // Bind user level threads to kernel threads (Solaris only) | |
2921 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2922 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2923 // Redirect GC output to the file. -Xloggc:<filename> | |
2924 // ostream_init_log(), when called will use this filename | |
2925 // to initialize a fileStream. | |
2926 _gc_log_filename = strdup(tail); | |
12215 | 2927 if (!is_filename_valid(_gc_log_filename)) { |
2928 jio_fprintf(defaultStream::output_stream(), | |
2929 "Invalid file name for use with -Xloggc: Filename can only contain the " | |
2930 "characters [A-Z][a-z][0-9]-_.%%[p|t] but it has been %s\n" | |
2931 "Note %%p or %%t can only be used once\n", _gc_log_filename); | |
2932 return JNI_EINVAL; | |
2933 } | |
0 | 2934 FLAG_SET_CMDLINE(bool, PrintGC, true); |
2935 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2936 | |
2937 // JNI hooks | |
2938 } else if (match_option(option, "-Xcheck", &tail)) { | |
2939 if (!strcmp(tail, ":jni")) { | |
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2940 #if !INCLUDE_JNI_CHECK |
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2941 warning("JNI CHECKING is not supported in this VM"); |
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|
2942 #else |
0 | 2943 CheckJNICalls = true; |
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2944 #endif // INCLUDE_JNI_CHECK |
0 | 2945 } else if (is_bad_option(option, args->ignoreUnrecognized, |
2946 "check")) { | |
2947 return JNI_EINVAL; | |
2948 } | |
2949 } else if (match_option(option, "vfprintf", &tail)) { | |
2950 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2951 } else if (match_option(option, "exit", &tail)) { | |
2952 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2953 } else if (match_option(option, "abort", &tail)) { | |
2954 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2955 // -XX:+AggressiveHeap | |
2956 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2957 | |
2958 // This option inspects the machine and attempts to set various | |
2959 // parameters to be optimal for long-running, memory allocation | |
2960 // intensive jobs. It is intended for machines with large | |
2961 // amounts of cpu and memory. | |
2962 | |
2963 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2964 // VM, but we may not be able to represent the total physical memory | |
2965 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2966 // Thus, we need to make sure we're using a julong for intermediate | |
2967 // calculations. | |
2968 julong initHeapSize; | |
2969 julong total_memory = os::physical_memory(); | |
2970 | |
2971 if (total_memory < (julong)256*M) { | |
2972 jio_fprintf(defaultStream::error_stream(), | |
2973 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2974 vm_exit(1); | |
2975 } | |
2976 | |
2977 // The heap size is half of available memory, or (at most) | |
2978 // all of possible memory less 160mb (leaving room for the OS | |
2979 // when using ISM). This is the maximum; because adaptive sizing | |
2980 // is turned on below, the actual space used may be smaller. | |
2981 | |
2982 initHeapSize = MIN2(total_memory / (julong)2, | |
2983 total_memory - (julong)160*M); | |
2984 | |
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2985 initHeapSize = limit_by_allocatable_memory(initHeapSize); |
0 | 2986 |
2987 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2988 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2989 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2990 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2991 set_min_heap_size(initHeapSize); |
0 | 2992 } |
2993 if (FLAG_IS_DEFAULT(NewSize)) { | |
2994 // Make the young generation 3/8ths of the total heap. | |
2995 FLAG_SET_CMDLINE(uintx, NewSize, | |
2996 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2997 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2998 } | |
2999 | |
6917
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3000 #ifndef _ALLBSD_SOURCE // UseLargePages is not yet supported on BSD. |
0 | 3001 FLAG_SET_DEFAULT(UseLargePages, true); |
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3002 #endif |
0 | 3003 |
3004 // Increase some data structure sizes for efficiency | |
3005 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
3006 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
3007 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
3008 | |
3009 // See the OldPLABSize comment below, but replace 'after promotion' | |
3010 // with 'after copying'. YoungPLABSize is the size of the survivor | |
3011 // space per-gc-thread buffers. The default is 4kw. | |
3012 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
3013 | |
3014 // OldPLABSize is the size of the buffers in the old gen that | |
3015 // UseParallelGC uses to promote live data that doesn't fit in the | |
3016 // survivor spaces. At any given time, there's one for each gc thread. | |
3017 // The default size is 1kw. These buffers are rarely used, since the | |
3018 // survivor spaces are usually big enough. For specjbb, however, there | |
3019 // are occasions when there's lots of live data in the young gen | |
3020 // and we end up promoting some of it. We don't have a definite | |
3021 // explanation for why bumping OldPLABSize helps, but the theory | |
3022 // is that a bigger PLAB results in retaining something like the | |
3023 // original allocation order after promotion, which improves mutator | |
3024 // locality. A minor effect may be that larger PLABs reduce the | |
3025 // number of PLAB allocation events during gc. The value of 8kw | |
3026 // was arrived at by experimenting with specjbb. | |
3027 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
3028 | |
3029 // Enable parallel GC and adaptive generation sizing | |
3030 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
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3031 FLAG_SET_DEFAULT(ParallelGCThreads, |
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3032 Abstract_VM_Version::parallel_worker_threads()); |
0 | 3033 |
3034 // Encourage steady state memory management | |
3035 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
3036 | |
3037 // This appears to improve mutator locality | |
3038 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3039 | |
3040 // Get around early Solaris scheduling bug | |
3041 // (affinity vs other jobs on system) | |
3042 // but disallow DR and offlining (5008695). | |
3043 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
3044 | |
3045 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
3046 // The last option must always win. | |
3047 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
3048 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
3049 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
3050 // The last option must always win. | |
3051 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
3052 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
3053 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
3054 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
3055 jio_fprintf(defaultStream::error_stream(), | |
3056 "Please use CMSClassUnloadingEnabled in place of " | |
3057 "CMSPermGenSweepingEnabled in the future\n"); | |
3058 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
3059 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
3060 jio_fprintf(defaultStream::error_stream(), | |
3061 "Please use -XX:+UseGCOverheadLimit in place of " | |
3062 "-XX:+UseGCTimeLimit in the future\n"); | |
3063 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
3064 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
3065 jio_fprintf(defaultStream::error_stream(), | |
3066 "Please use -XX:-UseGCOverheadLimit in place of " | |
3067 "-XX:-UseGCTimeLimit in the future\n"); | |
3068 // The TLE options are for compatibility with 1.3 and will be | |
3069 // removed without notice in a future release. These options | |
3070 // are not to be documented. | |
3071 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
3072 // No longer used. | |
3073 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
3074 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
3075 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
3076 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
3077 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
3078 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
3079 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
3080 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
3081 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
3082 // No longer used. | |
3083 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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3084 julong long_tlab_size = 0; |
0 | 3085 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
3086 if (errcode != arg_in_range) { | |
3087 jio_fprintf(defaultStream::error_stream(), | |
3088 "Invalid TLAB size: %s\n", option->optionString); | |
3089 describe_range_error(errcode); | |
3090 return JNI_EINVAL; | |
3091 } | |
3092 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
3093 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
3094 // No longer used. | |
3095 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
3096 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
3097 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
3098 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
3099 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
3100 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
3101 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
3102 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
3103 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
3104 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
3105 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 3106 #if defined(DTRACE_ENABLED) |
0 | 3107 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
3108 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
3109 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
3110 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 3111 #else // defined(DTRACE_ENABLED) |
0 | 3112 jio_fprintf(defaultStream::error_stream(), |
4006 | 3113 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 3114 return JNI_EINVAL; |
4006 | 3115 #endif // defined(DTRACE_ENABLED) |
0 | 3116 #ifdef ASSERT |
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3117 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 3118 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
3119 // disable scavenge before parallel mark-compact | |
3120 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
3121 #endif | |
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3122 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 3123 julong cms_blocks_to_claim = (julong)atol(tail); |
3124 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
3125 jio_fprintf(defaultStream::error_stream(), | |
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3126 "Please use -XX:OldPLABSize in place of " |
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3127 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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|
3128 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
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|
3129 julong cms_blocks_to_claim = (julong)atol(tail); |
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|
3130 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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|
3131 jio_fprintf(defaultStream::error_stream(), |
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|
3132 "Please use -XX:OldPLABSize in place of " |
0 | 3133 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
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|
3134 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
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3135 julong old_plab_size = 0; |
0 | 3136 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
3137 if (errcode != arg_in_range) { | |
3138 jio_fprintf(defaultStream::error_stream(), | |
3139 "Invalid old PLAB size: %s\n", option->optionString); | |
3140 describe_range_error(errcode); | |
3141 return JNI_EINVAL; | |
3142 } | |
489
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|
3143 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 3144 jio_fprintf(defaultStream::error_stream(), |
3145 "Please use -XX:OldPLABSize in place of " | |
3146 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
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3147 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
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3148 julong young_plab_size = 0; |
0 | 3149 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
3150 if (errcode != arg_in_range) { | |
3151 jio_fprintf(defaultStream::error_stream(), | |
3152 "Invalid young PLAB size: %s\n", option->optionString); | |
3153 describe_range_error(errcode); | |
3154 return JNI_EINVAL; | |
3155 } | |
489
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|
3156 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 3157 jio_fprintf(defaultStream::error_stream(), |
3158 "Please use -XX:YoungPLABSize in place of " | |
3159 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 3160 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
3161 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
3162 julong stack_size = 0; | |
3163 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
3164 if (errcode != arg_in_range) { | |
3165 jio_fprintf(defaultStream::error_stream(), | |
3166 "Invalid mark stack size: %s\n", option->optionString); | |
3167 describe_range_error(errcode); | |
3168 return JNI_EINVAL; | |
3169 } | |
3170 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
3171 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
3172 julong max_stack_size = 0; | |
3173 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
3174 if (errcode != arg_in_range) { | |
3175 jio_fprintf(defaultStream::error_stream(), | |
3176 "Invalid maximum mark stack size: %s\n", | |
3177 option->optionString); | |
3178 describe_range_error(errcode); | |
3179 return JNI_EINVAL; | |
3180 } | |
3181 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
3182 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
3183 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
3184 uintx conc_threads = 0; | |
3185 if (!parse_uintx(tail, &conc_threads, 1)) { | |
3186 jio_fprintf(defaultStream::error_stream(), | |
3187 "Invalid concurrent threads: %s\n", option->optionString); | |
3188 return JNI_EINVAL; | |
3189 } | |
3190 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3191 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3192 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3193 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3194 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3195 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3196 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3197 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3198 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3199 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3200 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
3201 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
6878
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3202 } else if (match_option(option, "-XX:+UseVMInterruptibleIO", &tail)) { |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3203 // NOTE! In JDK 9, the UseVMInterruptibleIO flag will completely go |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3204 // away and will cause VM initialization failures! |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3205 warning("-XX:+UseVMInterruptibleIO is obsolete and will be removed in a future release."); |
85916677fc22
7188233: UseVMInterruptibleIO flag deprecate for JDK8
coleenp
parents:
6857
diff
changeset
|
3206 FLAG_SET_CMDLINE(bool, UseVMInterruptibleIO, true); |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3207 #if !INCLUDE_MANAGEMENT |
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3208 } else if (match_option(option, "-XX:+ManagementServer", &tail)) { |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3209 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
|
3210 "ManagementServer is not supported in this VM.\n"); |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3211 return JNI_ERR; |
8081
579f6adb7f51
8003539: Minimal VM don't react to -Dcom.sun.management and -XX:+ManagementServer
jprovino
parents:
8002
diff
changeset
|
3212 #endif // INCLUDE_MANAGEMENT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3213 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 3214 // Skip -XX:Flags= since that case has already been handled |
3215 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
3216 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
3217 return JNI_EINVAL; | |
3218 } | |
3219 } | |
3220 // Unknown option | |
3221 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
3222 return JNI_ERR; | |
3223 } | |
3224 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
3225 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3226 // Change the default value for flags which have different default values |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
3227 // when working with older JDKs. |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3228 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3229 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3230 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3231 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3232 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
3233 #endif // LINUX |
0 | 3234 return JNI_OK; |
3235 } | |
3236 | |
3237 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
3238 // This must be done after all -D arguments have been processed. | |
3239 scp_p->expand_endorsed(); | |
3240 | |
3241 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
3242 // Assemble the bootclasspath elements into the final path. | |
3243 Arguments::set_sysclasspath(scp_p->combined_path()); | |
3244 } | |
3245 | |
3246 // This must be done after all arguments have been processed. | |
3247 // java_compiler() true means set to "NONE" or empty. | |
3248 if (java_compiler() && !xdebug_mode()) { | |
3249 // For backwards compatibility, we switch to interpreted mode if | |
3250 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
3251 // not specified. | |
3252 set_mode_flags(_int); | |
3253 } | |
3254 if (CompileThreshold == 0) { | |
3255 set_mode_flags(_int); | |
3256 } | |
3257 | |
10292
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3258 // eventually fix up InitialTenuringThreshold if only MaxTenuringThreshold is set |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3259 if (FLAG_IS_DEFAULT(InitialTenuringThreshold) && (InitialTenuringThreshold > MaxTenuringThreshold)) { |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3260 FLAG_SET_ERGO(uintx, InitialTenuringThreshold, MaxTenuringThreshold); |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3261 } |
acac2b03a07f
8014765: VM exits if MaxTenuringThreshold is set below the default InitialTenuringThreshold, and InitialTenuringThreshold is not set
tschatzl
parents:
10287
diff
changeset
|
3262 |
0 | 3263 #ifndef COMPILER2 |
3264 // Don't degrade server performance for footprint | |
3265 if (FLAG_IS_DEFAULT(UseLargePages) && | |
3266 MaxHeapSize < LargePageHeapSizeThreshold) { | |
3267 // No need for large granularity pages w/small heaps. | |
3268 // Note that large pages are enabled/disabled for both the | |
3269 // Java heap and the code cache. | |
3270 FLAG_SET_DEFAULT(UseLargePages, false); | |
3271 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3272 |
0 | 3273 #else |
3274 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
3275 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
3276 } | |
3277 #endif | |
3278 | |
11999
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3279 #ifndef TIERED |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3280 // Tiered compilation is undefined. |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3281 UNSUPPORTED_OPTION(TieredCompilation, "TieredCompilation"); |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3282 #endif |
79a5283f4595
8021120: TieredCompilation can be enabled even if TIERED is undefined
iignatyev
parents:
11154
diff
changeset
|
3283 |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3284 // 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
|
3285 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3286 // 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
|
3287 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3288 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3289 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3290 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3291 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3292 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3293 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3294 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3295 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3296 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3297 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3298 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3299 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3300 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3301 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3302 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3303 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3304 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3305 |
0 | 3306 if (!check_vm_args_consistency()) { |
3307 return JNI_ERR; | |
3308 } | |
3309 | |
3310 return JNI_OK; | |
3311 } | |
3312 | |
3313 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3314 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
3315 scp_assembly_required_p); | |
3316 } | |
3317 | |
3318 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3319 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
3320 scp_assembly_required_p); | |
3321 } | |
3322 | |
3323 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
3324 const int N_MAX_OPTIONS = 64; | |
3325 const int OPTION_BUFFER_SIZE = 1024; | |
3326 char buffer[OPTION_BUFFER_SIZE]; | |
3327 | |
3328 // The variable will be ignored if it exceeds the length of the buffer. | |
3329 // Don't check this variable if user has special privileges | |
3330 // (e.g. unix su command). | |
3331 if (os::getenv(name, buffer, sizeof(buffer)) && | |
3332 !os::have_special_privileges()) { | |
3333 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
3334 jio_fprintf(defaultStream::error_stream(), | |
3335 "Picked up %s: %s\n", name, buffer); | |
3336 char* rd = buffer; // pointer to the input string (rd) | |
3337 int i; | |
3338 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
3339 while (isspace(*rd)) rd++; // skip whitespace | |
3340 if (*rd == 0) break; // we re done when the input string is read completely | |
3341 | |
3342 // The output, option string, overwrites the input string. | |
3343 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
3344 // input string (rd). | |
3345 char* wrt = rd; | |
3346 | |
3347 options[i++].optionString = wrt; // Fill in option | |
3348 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3349 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3350 int quote = *rd; // matching quote to look for | |
3351 rd++; // don't copy open quote | |
3352 while (*rd != quote) { // include everything (even spaces) up until quote | |
3353 if (*rd == 0) { // string termination means unmatched string | |
3354 jio_fprintf(defaultStream::error_stream(), | |
3355 "Unmatched quote in %s\n", name); | |
3356 return JNI_ERR; | |
3357 } | |
3358 *wrt++ = *rd++; // copy to option string | |
3359 } | |
3360 rd++; // don't copy close quote | |
3361 } else { | |
3362 *wrt++ = *rd++; // copy to option string | |
3363 } | |
3364 } | |
3365 // Need to check if we're done before writing a NULL, | |
3366 // because the write could be to the byte that rd is pointing to. | |
3367 if (*rd++ == 0) { | |
3368 *wrt = 0; | |
3369 break; | |
3370 } | |
3371 *wrt = 0; // Zero terminate option | |
3372 } | |
3373 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3374 JavaVMInitArgs vm_args; | |
3375 vm_args.version = JNI_VERSION_1_2; | |
3376 vm_args.options = options; | |
3377 vm_args.nOptions = i; | |
564 | 3378 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3379 |
3380 if (PrintVMOptions) { | |
3381 const char* tail; | |
3382 for (int i = 0; i < vm_args.nOptions; i++) { | |
3383 const JavaVMOption *option = vm_args.options + i; | |
3384 if (match_option(option, "-XX:", &tail)) { | |
3385 logOption(tail); | |
3386 } | |
3387 } | |
3388 } | |
3389 | |
12322
72b7e96c1922
8024545: make develop and notproduct flag values available in product builds
twisti
parents:
12269
diff
changeset
|
3390 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, Flag::ENVIRON_VAR)); |
0 | 3391 } |
3392 return JNI_OK; | |
3393 } | |
3394 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3395 void Arguments::set_shared_spaces_flags() { |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3396 if (DumpSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3397 if (RequireSharedSpaces) { |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3398 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
|
3399 } |
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3400 UseSharedSpaces = false; |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3401 #ifdef _LP64 |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3402 if (!UseCompressedOops || !UseCompressedClassPointers) { |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3403 vm_exit_during_initialization( |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3404 "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
|
3405 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3406 } else { |
12226
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3407 // UseCompressedOops and UseCompressedClassPointers must be on for UseSharedSpaces. |
7944aba7ba41
8015107: NPG: Use consistent naming for metaspace concepts
ehelin
parents:
12182
diff
changeset
|
3408 if (!UseCompressedOops || !UseCompressedClassPointers) { |
12056
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3409 no_shared_spaces(); |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3410 } |
740e263c80c6
8003424: Enable Class Data Sharing for CompressedOops
hseigel
parents:
12003
diff
changeset
|
3411 #endif |
6725
da91efe96a93
6964458: Reimplement class meta-data storage to use native memory
coleenp
parents:
6628
diff
changeset
|
3412 } |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3413 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
3414 |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3415 #if !INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3416 static void force_serial_gc() { |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3417 FLAG_SET_DEFAULT(UseSerialGC, true); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3418 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
|
3419 UNSUPPORTED_GC_OPTION(UseG1GC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3420 UNSUPPORTED_GC_OPTION(UseParallelGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3421 UNSUPPORTED_GC_OPTION(UseParallelOldGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3422 UNSUPPORTED_GC_OPTION(UseConcMarkSweepGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3423 UNSUPPORTED_GC_OPTION(UseParNewGC); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3424 } |
9060
cc32ccaaf47f
8003310: Enable -Wunused-function when compiling with gcc
mikael
parents:
8847
diff
changeset
|
3425 #endif // INCLUDE_ALL_GCS |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3426 |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3427 // Sharing support |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3428 // Construct the path to the archive |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3429 static char* get_shared_archive_path() { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3430 char *shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3431 if (SharedArchiveFile == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3432 char jvm_path[JVM_MAXPATHLEN]; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3433 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
|
3434 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
|
3435 if (end != NULL) *end = '\0'; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3436 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
|
3437 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
|
3438 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
|
3439 file_sep_len + 20, mtInternal); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3440 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3441 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
|
3442 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
|
3443 strncat(shared_archive_path, "classes.jsa", 11); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3444 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3445 } else { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3446 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
|
3447 if (shared_archive_path != NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3448 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
|
3449 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3450 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3451 return shared_archive_path; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3452 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3453 |
12257
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3454 #ifndef PRODUCT |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3455 // 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
|
3456 static bool use_vm_log() { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3457 if (LogCompilation || !FLAG_IS_DEFAULT(LogFile) || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3458 PrintCompilation || PrintInlining || PrintDependencies || PrintNativeNMethods || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3459 PrintDebugInfo || PrintRelocations || PrintNMethods || PrintExceptionHandlers || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3460 PrintAssembly || TraceDeoptimization || TraceDependencies || |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3461 (VerifyDependencies && FLAG_IS_CMDLINE(VerifyDependencies))) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3462 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3463 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3464 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3465 #ifdef COMPILER1 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3466 if (PrintC1Statistics) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3467 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3468 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3469 #endif // COMPILER1 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3470 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3471 #ifdef COMPILER2 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3472 if (PrintOptoAssembly || PrintOptoStatistics) { |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3473 return true; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3474 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3475 #endif // COMPILER2 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3476 |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3477 return false; |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3478 } |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3479 #endif // PRODUCT |
01b268b3080a
8023134: Rename VM LogFile to hotspot_pid{pid}.log (was hotspot.log)
vlivanov
parents:
12129
diff
changeset
|
3480 |
0 | 3481 // Parse entry point called from JNI_CreateJavaVM |
3482 | |
3483 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3484 | |
3485 // Remaining part of option string | |
3486 const char* tail; | |
3487 | |
3488 // 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
|
3489 const char* hotspotrc = ".hotspotrc"; |
0 | 3490 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
|
3491 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
|
3492 |
564 | 3493 const char* flags_file; |
0 | 3494 int index; |
3495 for (index = 0; index < args->nOptions; index++) { | |
3496 const JavaVMOption *option = args->options + index; | |
3497 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3498 flags_file = tail; |
0 | 3499 settings_file_specified = true; |
3500 } | |
3501 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3502 PrintVMOptions = true; | |
3503 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3504 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
|
3505 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
3506 } |
564 | 3507 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3508 IgnoreUnrecognizedVMOptions = true; | |
3509 } | |
3510 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3511 IgnoreUnrecognizedVMOptions = false; | |
3512 } | |
1150 | 3513 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3514 CommandLineFlags::printFlags(tty, false); |
1150 | 3515 vm_exit(0); |
3516 } | |
6197 | 3517 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3518 #if INCLUDE_NMT |
6197 | 3519 MemTracker::init_tracking_options(tail); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3520 #else |
8720
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3521 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
|
3522 "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
|
3523 return JNI_ERR; |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3524 #endif |
6197 | 3525 } |
3526 | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3527 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3528 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3529 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3530 CommandLineFlags::printFlags(tty, true); |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3531 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3532 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3533 #endif |
564 | 3534 } |
3535 | |
3536 if (IgnoreUnrecognizedVMOptions) { | |
3537 // uncast const to modify the flag args->ignoreUnrecognized | |
3538 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3539 } | |
3540 | |
3541 // Parse specified settings file | |
3542 if (settings_file_specified) { | |
3543 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3544 return JNI_EINVAL; | |
3545 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3546 } else { |
6150
1e76463170b3
7110720: Issue with vm config file loadingIssue with vm config file loading
kamg
parents:
4780
diff
changeset
|
3547 #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
|
3548 // Parse default .hotspotrc settings file |
0 | 3549 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3550 return JNI_EINVAL; | |
3551 } | |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3552 #else |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3553 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
|
3554 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
|
3555 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
|
3556 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3557 #endif |
0 | 3558 } |
3559 | |
3560 if (PrintVMOptions) { | |
3561 for (index = 0; index < args->nOptions; index++) { | |
3562 const JavaVMOption *option = args->options + index; | |
3563 if (match_option(option, "-XX:", &tail)) { | |
3564 logOption(tail); | |
3565 } | |
3566 } | |
3567 } | |
3568 | |
3569 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3570 jint result = parse_vm_init_args(args); | |
3571 if (result != JNI_OK) { | |
3572 return result; | |
3573 } | |
3574 | |
10270
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3575 // 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
|
3576 SharedArchivePath = get_shared_archive_path(); |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3577 if (SharedArchivePath == NULL) { |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3578 return JNI_ENOMEM; |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3579 } |
f944ba972151
8014138: Add VM option to facilitate the writing of CDS tests
hseigel
parents:
10264
diff
changeset
|
3580 |
6196
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3581 // 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
|
3582 // 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
|
3583 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
|
3584 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
|
3585 "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
|
3586 hotspotrc, hotspotrc); |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3587 } |
3759236eea14
7167142: Consider a warning when finding a .hotspotrc or .hotspot_compiler file that isn't used
kamg
parents:
6158
diff
changeset
|
3588 |
6917
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3589 #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
|
3590 UNSUPPORTED_OPTION(UseLargePages, "-XX:+UseLargePages"); |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3591 #endif |
e81fbc04a942
7191817: -XX:+UseSerialGC -XX:+UseLargePages crashes with SIGFPE on MacOS X
coleenp
parents:
6916
diff
changeset
|
3592 |
8086
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3593 #if INCLUDE_ALL_GCS |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3594 #if (defined JAVASE_EMBEDDED || defined ARM) |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3595 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3596 #endif |
1605eef8e11e
8003581: UseG1GC is not properly accounted for by INCLUDE_ALTERNATE_GCS
jprovino
parents:
8083
diff
changeset
|
3597 #endif |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3598 |
0 | 3599 #ifndef PRODUCT |
3600 if (TraceBytecodesAt != 0) { | |
3601 TraceBytecodes = true; | |
3602 } | |
3603 if (CountCompiledCalls) { | |
3604 if (UseCounterDecay) { | |
3605 warning("UseCounterDecay disabled because CountCalls is set"); | |
3606 UseCounterDecay = false; | |
3607 } | |
3608 } | |
3609 #endif // PRODUCT | |
3610 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3611 // 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
|
3612 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3613 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3614 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3615 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
|
3616 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3617 EnableInvokeDynamic = false; |
710 | 3618 } |
3619 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3620 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3621 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3622 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3623 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
|
3624 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3625 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3626 } |
710 | 3627 |
0 | 3628 if (PrintGCDetails) { |
3629 // Turn on -verbose:gc options as well | |
3630 PrintGC = true; | |
3631 } | |
3632 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3633 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3634 // 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
|
3635 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3636 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3637 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3638 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3639 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3640 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3641 // 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
|
3642 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
|
3643 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3644 #if !INCLUDE_ALL_GCS |
1064 | 3645 force_serial_gc(); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3646 #endif // INCLUDE_ALL_GCS |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3647 #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
|
3648 if (DumpSharedSpaces || RequireSharedSpaces) { |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3649 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
|
3650 "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
|
3651 return JNI_ERR; |
fad90b102190
8008310: Some adjustments needed to minimal VM warnings and errors for unsupported command line options
jprovino
parents:
8105
diff
changeset
|
3652 } |
8724
69ffa4ac9e53
8009835: Only produce a warning when -Xshare:auto is explicitly requested
jprovino
parents:
8720
diff
changeset
|
3653 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
|
3654 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
|
3655 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
|
3656 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
|
3657 } |
0 | 3658 no_shared_spaces(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3659 #endif // INCLUDE_CDS |
0 | 3660 |
12233
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3661 return JNI_OK; |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3662 } |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3663 |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3664 jint Arguments::apply_ergo() { |
40136aa2cdb1
8010722: assert: failed: heap size is too big for compressed oops
tschatzl
parents:
12226
diff
changeset
|
3665 |
0 | 3666 // Set flags based on ergonomics. |
3667 set_ergonomics_flags(); | |
3668 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3669 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3670 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3671 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3672 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3673 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3674 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3675 |
1783 | 3676 if (TieredCompilation) { |
3677 set_tiered_flags(); | |
3678 } else { | |
3679 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3680 if (CompilationPolicyChoice >= 2) { | |
3681 vm_exit_during_initialization( | |
3682 "Incompatible compilation policy selected", NULL); | |
3683 } | |
3684 } | |
13074
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3685 // Set NmethodSweepFraction after the size of the code cache is adapted (in case of tiered) |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3686 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3687 FLAG_SET_DEFAULT(NmethodSweepFraction, 1 + ReservedCodeCacheSize / (16 * M)); |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3688 } |
78da3894b86f
8027593: performance drop with constrained codecache starting with hs25 b111
anoll
parents:
13008
diff
changeset
|
3689 |
1783 | 3690 |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3691 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3692 set_heap_size(); |
6854
fb19af007ffc
7189254: Change makefiles for more flexibility to override defaults
jprovino
parents:
6818
diff
changeset
|
3693 |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3694 #if INCLUDE_ALL_GCS |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3695 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3696 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3697 set_parallel_gc_flags(); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3698 } 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
|
3699 set_cms_and_parnew_gc_flags(); |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3700 } else if (UseParNewGC) { // Skipped if CMS is set above |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3701 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3702 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3703 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3704 } |
7452
e0ab18eafbde
8003820: Deprecate untested and rarely used GC combinations
brutisso
parents:
7451
diff
changeset
|
3705 check_deprecated_gcs(); |
8734 | 3706 check_deprecated_gc_flags(); |
8845
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3707 if (AssumeMP && !UseSerialGC) { |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3708 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
|
3709 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
|
3710 " 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
|
3711 " using -XX:ParallelGCThreads=N"); |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3712 } |
1b90c7607451
2178143: JVM crashes if the number of bound CPUs changed during runtime
minqi
parents:
8819
diff
changeset
|
3713 } |
14313
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3714 if (MinHeapFreeRatio == 100) { |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3715 // Keeping the heap 100% free is hard ;-) so limit it to 99%. |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3716 FLAG_SET_ERGO(uintx, MinHeapFreeRatio, 99); |
44315152d434
8028391: Make the Min/MaxHeapFreeRatio flags manageable
jwilhelm
parents:
14309
diff
changeset
|
3717 } |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3718 #else // INCLUDE_ALL_GCS |
0 | 3719 assert(verify_serial_gc_flags(), "SerialGC unset"); |
8001
db9981fd3124
8005915: Unify SERIALGC and INCLUDE_ALTERNATE_GCS
jprovino
parents:
7479
diff
changeset
|
3720 #endif // INCLUDE_ALL_GCS |
0 | 3721 |
14309 | 3722 // Initialize Metaspace flags and alignments |
12838
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3723 Metaspace::ergo_initialize(); |
85c1ca43713f
8024547: MaxMetaspaceSize should limit the committed memory used by the metaspaces
stefank
parents:
12831
diff
changeset
|
3724 |
0 | 3725 // Set bytecode rewriting flags |
3726 set_bytecode_flags(); | |
3727 | |
14309 | 3728 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled |
0 | 3729 set_aggressive_opts_flags(); |
3730 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3731 // Turn off biased locking for locking debug mode flags, |
14309 | 3732 // which are subtly different from each other but neither works with |
3733 // biased locking | |
2331 | 3734 if (UseHeavyMonitors |
3735 #ifdef COMPILER1 | |
3736 || !UseFastLocking | |
3737 #endif // COMPILER1 | |
3738 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3739 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3740 // 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
|
3741 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3742 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3743 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3744 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3745 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3746 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3747 |
14420
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
changeset
|
3748 #ifdef ZERO |
abe03600372a
8024468: PPC64 (part 201): cppInterpreter: implement bytecode profiling
goetz
parents:
14412
diff
changeset
|
3749 // Clear flags not supported on zero. |
1131 | 3750 FLAG_SET_DEFAULT(ProfileInterpreter, false); |
0 | 3751 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3752 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
12226
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3753 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedClassPointers, false)); |
1131 | 3754 #endif // CC_INTERP |
3755 | |
420
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3756 #ifdef COMPILER2 |
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|
3757 if (!UseBiasedLocking || EmitSync != 0) { |
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|
3758 UseOptoBiasInlining = false; |
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|
3759 } |
4777 | 3760 if (!EliminateLocks) { |
3761 EliminateNestedLocks = false; | |
3762 } | |
7473 | 3763 if (!Inline) { |
3764 IncrementalInline = false; | |
3765 } | |
3766 #ifndef PRODUCT | |
3767 if (!IncrementalInline) { | |
3768 AlwaysIncrementalInline = false; | |
3769 } | |
3770 #endif | |
3771 if (IncrementalInline && FLAG_IS_DEFAULT(MaxNodeLimit)) { | |
3772 // incremental inlining: bump MaxNodeLimit | |
3773 FLAG_SET_DEFAULT(MaxNodeLimit, (intx)75000); | |
3774 } | |
12966 | 3775 if (!UseTypeSpeculation && FLAG_IS_DEFAULT(TypeProfileLevel)) { |
3776 // nothing to use the profiling, turn if off | |
3777 FLAG_SET_DEFAULT(TypeProfileLevel, 0); | |
3778 } | |
3779 if (UseTypeSpeculation && FLAG_IS_DEFAULT(ReplaceInParentMaps)) { | |
3780 // Doing the replace in parent maps helps speculation | |
3781 FLAG_SET_DEFAULT(ReplaceInParentMaps, true); | |
3782 } | |
420
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3783 #endif |
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|
3784 |
1155
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|
3785 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
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|
3786 warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
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|
3787 DebugNonSafepoints = true; |
4e6abf09f540
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diff
changeset
|
3788 } |
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|
3789 |
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|
3790 if (FLAG_IS_CMDLINE(CompressedClassSpaceSize) && !UseCompressedClassPointers) { |
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|
3791 warning("Setting CompressedClassSpaceSize has no effect when compressed class pointers are not used"); |
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|
3792 } |
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|
3793 |
1188
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|
3794 #ifndef PRODUCT |
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|
3795 if (CompileTheWorld) { |
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changeset
|
3796 // Force NmethodSweeper to sweep whole CodeCache each time. |
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|
3797 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
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|
3798 NmethodSweepFraction = 1; |
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|
3799 } |
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|
3800 } |
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|
3801 |
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|
3802 if (!LogVMOutput && FLAG_IS_DEFAULT(LogVMOutput)) { |
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|
3803 if (use_vm_log()) { |
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|
3804 LogVMOutput = true; |
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3805 } |
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|
3806 } |
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|
3807 #endif // PRODUCT |
1188
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|
3808 |
0 | 3809 if (PrintCommandLineFlags) { |
4773 | 3810 CommandLineFlags::printSetFlags(tty); |
0 | 3811 } |
3812 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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diff
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|
3813 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
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|
3814 if (UseBiasedLocking) { |
126ea7725993
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changeset
|
3815 if (!VM_Version::use_biased_locking() && |
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6953477: Increase portability and flexibility of building Hotspot
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diff
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|
3816 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
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bobv
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|
3817 UseBiasedLocking = false; |
126ea7725993
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|
3818 } |
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|
3819 } |
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|
3820 |
0 | 3821 return JNI_OK; |
3822 } | |
3823 | |
7177
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7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
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|
3824 jint Arguments::adjust_after_os() { |
14346 | 3825 if (UseNUMA) { |
3826 if (UseParallelGC || UseParallelOldGC) { | |
7177
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|
3827 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
14346 | 3828 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
7177
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7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
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|
3829 } |
14346 | 3830 } |
3831 // UseNUMAInterleaving is set to ON for all collectors and | |
3832 // platforms when UseNUMA is set to ON. NUMA-aware collectors | |
3833 // such as the parallel collector for Linux and Solaris will | |
3834 // interleave old gen and survivor spaces on top of NUMA | |
3835 // allocation policy for the eden space. | |
3836 // Non NUMA-aware collectors such as CMS, G1 and Serial-GC on | |
3837 // all platforms and ParallelGC on Windows will interleave all | |
3838 // of the heap spaces across NUMA nodes. | |
3839 if (FLAG_IS_DEFAULT(UseNUMAInterleaving)) { | |
3840 FLAG_SET_ERGO(bool, UseNUMAInterleaving, true); | |
7177
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7198334: UseNUMA modifies system parameters on non-NUMA system
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|
3841 } |
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diff
changeset
|
3842 } |
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7198334: UseNUMA modifies system parameters on non-NUMA system
brutisso
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diff
changeset
|
3843 return JNI_OK; |
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7198334: UseNUMA modifies system parameters on non-NUMA system
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diff
changeset
|
3844 } |
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|
3845 |
0 | 3846 int Arguments::PropertyList_count(SystemProperty* pl) { |
3847 int count = 0; | |
3848 while(pl != NULL) { | |
3849 count++; | |
3850 pl = pl->next(); | |
3851 } | |
3852 return count; | |
3853 } | |
3854 | |
3855 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3856 assert(key != NULL, "just checking"); | |
3857 SystemProperty* prop; | |
3858 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3859 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3860 } | |
3861 return NULL; | |
3862 } | |
3863 | |
3864 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3865 int count = 0; | |
3866 const char* ret_val = NULL; | |
3867 | |
3868 while(pl != NULL) { | |
3869 if(count >= index) { | |
3870 ret_val = pl->key(); | |
3871 break; | |
3872 } | |
3873 count++; | |
3874 pl = pl->next(); | |
3875 } | |
3876 | |
3877 return ret_val; | |
3878 } | |
3879 | |
3880 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3881 int count = 0; | |
3882 char* ret_val = NULL; | |
3883 | |
3884 while(pl != NULL) { | |
3885 if(count >= index) { | |
3886 ret_val = pl->value(); | |
3887 break; | |
3888 } | |
3889 count++; | |
3890 pl = pl->next(); | |
3891 } | |
3892 | |
3893 return ret_val; | |
3894 } | |
3895 | |
3896 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3897 SystemProperty* p = *plist; | |
3898 if (p == NULL) { | |
3899 *plist = new_p; | |
3900 } else { | |
3901 while (p->next() != NULL) { | |
3902 p = p->next(); | |
3903 } | |
3904 p->set_next(new_p); | |
3905 } | |
3906 } | |
3907 | |
3908 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3909 if (plist == NULL) | |
3910 return; | |
3911 | |
3912 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3913 PropertyList_add(plist, new_p); | |
3914 } | |
3915 | |
3916 // This add maintains unique property key in the list. | |
691 | 3917 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3918 if (plist == NULL) |
3919 return; | |
3920 | |
3921 // If property key exist then update with new value. | |
3922 SystemProperty* prop; | |
3923 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3924 if (strcmp(k, prop->key()) == 0) { | |
691 | 3925 if (append) { |
3926 prop->append_value(v); | |
3927 } else { | |
3928 prop->set_value(v); | |
3929 } | |
0 | 3930 return; |
3931 } | |
3932 } | |
3933 | |
3934 PropertyList_add(plist, k, v); | |
3935 } | |
3936 | |
3937 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3938 // Returns true if all of the source pointed by src has been copied over to | |
3939 // the destination buffer pointed by buf. Otherwise, returns false. | |
3940 // Notes: | |
3941 // 1. If the length (buflen) of the destination buffer excluding the | |
3942 // NULL terminator character is not long enough for holding the expanded | |
3943 // pid characters, it also returns false instead of returning the partially | |
3944 // expanded one. | |
3945 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3946 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3947 char* buf, size_t buflen) { | |
3948 const char* p = src; | |
3949 char* b = buf; | |
3950 const char* src_end = &src[srclen]; | |
3951 char* buf_end = &buf[buflen - 1]; | |
3952 | |
3953 while (p < src_end && b < buf_end) { | |
3954 if (*p == '%') { | |
3955 switch (*(++p)) { | |
3956 case '%': // "%%" ==> "%" | |
3957 *b++ = *p++; | |
3958 break; | |
3959 case 'p': { // "%p" ==> current process id | |
3960 // buf_end points to the character before the last character so | |
3961 // that we could write '\0' to the end of the buffer. | |
3962 size_t buf_sz = buf_end - b + 1; | |
3963 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3964 | |
3965 // if jio_snprintf fails or the buffer is not long enough to hold | |
3966 // the expanded pid, returns false. | |
3967 if (ret < 0 || ret >= (int)buf_sz) { | |
3968 return false; | |
3969 } else { | |
3970 b += ret; | |
3971 assert(*b == '\0', "fail in copy_expand_pid"); | |
3972 if (p == src_end && b == buf_end + 1) { | |
3973 // reach the end of the buffer. | |
3974 return true; | |
3975 } | |
3976 } | |
3977 p++; | |
3978 break; | |
3979 } | |
3980 default : | |
3981 *b++ = '%'; | |
3982 } | |
3983 } else { | |
3984 *b++ = *p++; | |
3985 } | |
3986 } | |
3987 *b = '\0'; | |
3988 return (p == src_end); // return false if not all of the source was copied | |
3989 } |