Mercurial > hg > truffle
annotate src/share/vm/runtime/arguments.cpp @ 3714:b648304ba4ff
Change Graal monitor enter and exit from BasicObjectLock to BasicLock
author | Christian Wimmer <christian.wimmer@oracle.com> |
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date | Tue, 13 Dec 2011 21:17:46 -0800 |
parents | 3822c5969a8b |
children | d3ec27ea1b20 |
rev | line source |
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0 | 1 /* |
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2 * Copyright (c) 1997, 2011, 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" | |
27 #include "compiler/compilerOracle.hpp" | |
28 #include "memory/allocation.inline.hpp" | |
29 #include "memory/cardTableRS.hpp" | |
30 #include "memory/referenceProcessor.hpp" | |
31 #include "memory/universe.inline.hpp" | |
32 #include "oops/oop.inline.hpp" | |
33 #include "prims/jvmtiExport.hpp" | |
34 #include "runtime/arguments.hpp" | |
35 #include "runtime/globals_extension.hpp" | |
36 #include "runtime/java.hpp" | |
37 #include "services/management.hpp" | |
38 #include "utilities/defaultStream.hpp" | |
39 #include "utilities/taskqueue.hpp" | |
40 #ifdef TARGET_ARCH_x86 | |
41 # include "vm_version_x86.hpp" | |
42 #endif | |
43 #ifdef TARGET_ARCH_sparc | |
44 # include "vm_version_sparc.hpp" | |
45 #endif | |
46 #ifdef TARGET_ARCH_zero | |
47 # include "vm_version_zero.hpp" | |
48 #endif | |
49 #ifdef TARGET_OS_FAMILY_linux | |
50 # include "os_linux.inline.hpp" | |
51 #endif | |
52 #ifdef TARGET_OS_FAMILY_solaris | |
53 # include "os_solaris.inline.hpp" | |
54 #endif | |
55 #ifdef TARGET_OS_FAMILY_windows | |
56 # include "os_windows.inline.hpp" | |
57 #endif | |
58 #ifndef SERIALGC | |
59 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" | |
60 #endif | |
0 | 61 |
2474 | 62 // Note: This is a special bug reporting site for the JVM |
63 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 64 #define DEFAULT_JAVA_LAUNCHER "generic" |
65 | |
66 char** Arguments::_jvm_flags_array = NULL; | |
67 int Arguments::_num_jvm_flags = 0; | |
68 char** Arguments::_jvm_args_array = NULL; | |
69 int Arguments::_num_jvm_args = 0; | |
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70 char** Arguments::_graal_args_array = NULL; |
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71 int Arguments::_num_graal_args = 0; |
0 | 72 char* Arguments::_java_command = NULL; |
73 SystemProperty* Arguments::_system_properties = NULL; | |
74 const char* Arguments::_gc_log_filename = NULL; | |
75 bool Arguments::_has_profile = false; | |
76 bool Arguments::_has_alloc_profile = false; | |
77 uintx Arguments::_min_heap_size = 0; | |
78 Arguments::Mode Arguments::_mode = _mixed; | |
79 bool Arguments::_java_compiler = false; | |
80 bool Arguments::_xdebug_mode = false; | |
81 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
82 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
83 int Arguments::_sun_java_launcher_pid = -1; | |
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84 bool Arguments::_created_by_gamma_launcher = false; |
0 | 85 |
86 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
87 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
88 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
89 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
90 bool Arguments::_ClipInlining = ClipInlining; | |
91 | |
92 char* Arguments::SharedArchivePath = NULL; | |
93 | |
94 AgentLibraryList Arguments::_libraryList; | |
95 AgentLibraryList Arguments::_agentList; | |
96 | |
97 abort_hook_t Arguments::_abort_hook = NULL; | |
98 exit_hook_t Arguments::_exit_hook = NULL; | |
99 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
100 | |
101 | |
102 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
103 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
104 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
105 SystemProperty *Arguments::_java_library_path = NULL; | |
106 SystemProperty *Arguments::_java_home = NULL; | |
107 SystemProperty *Arguments::_java_class_path = NULL; | |
108 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
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109 SystemProperty *Arguments::_compiler_class_path = NULL; |
0 | 110 |
111 char* Arguments::_meta_index_path = NULL; | |
112 char* Arguments::_meta_index_dir = NULL; | |
113 | |
114 static bool force_client_mode = false; | |
115 | |
116 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
117 | |
118 static bool match_option(const JavaVMOption *option, const char* name, | |
119 const char** tail) { | |
120 int len = (int)strlen(name); | |
121 if (strncmp(option->optionString, name, len) == 0) { | |
122 *tail = option->optionString + len; | |
123 return true; | |
124 } else { | |
125 return false; | |
126 } | |
127 } | |
128 | |
129 static void logOption(const char* opt) { | |
130 if (PrintVMOptions) { | |
131 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
132 } | |
133 } | |
134 | |
135 // Process java launcher properties. | |
136 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
137 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
138 // Must do this before setting up other system properties, | |
139 // as some of them may depend on launcher type. | |
140 for (int index = 0; index < args->nOptions; index++) { | |
141 const JavaVMOption* option = args->options + index; | |
142 const char* tail; | |
143 | |
144 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
145 process_java_launcher_argument(tail, option->extraInfo); | |
146 continue; | |
147 } | |
148 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
149 _sun_java_launcher_pid = atoi(tail); | |
150 continue; | |
151 } | |
152 } | |
153 } | |
154 | |
155 // Initialize system properties key and value. | |
156 void Arguments::init_system_properties() { | |
157 | |
158 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
159 "Java Virtual Machine Specification", false)); | |
160 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
161 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
162 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
163 | |
164 // following are JVMTI agent writeable properties. | |
165 // Properties values are set to NULL and they are | |
166 // os specific they are initialized in os::init_system_properties_values(). | |
167 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
168 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
169 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
170 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
171 _java_home = new SystemProperty("java.home", NULL, true); | |
172 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
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173 _compiler_class_path = new SystemProperty("compiler.class.path", NULL, true); |
0 | 174 |
175 _java_class_path = new SystemProperty("java.class.path", "", true); | |
176 | |
177 // Add to System Property list. | |
178 PropertyList_add(&_system_properties, _java_ext_dirs); | |
179 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
180 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
181 PropertyList_add(&_system_properties, _java_library_path); | |
182 PropertyList_add(&_system_properties, _java_home); | |
183 PropertyList_add(&_system_properties, _java_class_path); | |
184 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
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185 PropertyList_add(&_system_properties, _compiler_class_path); |
0 | 186 |
187 // Set OS specific system properties values | |
188 os::init_system_properties_values(); | |
189 } | |
190 | |
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191 |
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192 // Update/Initialize System properties after JDK version number is known |
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193 void Arguments::init_version_specific_system_properties() { |
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194 enum { bufsz = 16 }; |
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195 char buffer[bufsz]; |
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196 const char* spec_vendor = "Sun Microsystems Inc."; |
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197 uint32_t spec_version = 0; |
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198 |
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199 if (JDK_Version::is_gte_jdk17x_version()) { |
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200 spec_vendor = "Oracle Corporation"; |
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201 spec_version = JDK_Version::current().major_version(); |
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202 } |
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203 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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204 |
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205 PropertyList_add(&_system_properties, |
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206 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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207 PropertyList_add(&_system_properties, |
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208 new SystemProperty("java.vm.specification.version", buffer, false)); |
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209 PropertyList_add(&_system_properties, |
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210 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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211 } |
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212 |
242 | 213 /** |
214 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
215 * When a flag is eliminated, it can be added to this list in order to | |
216 * continue accepting this flag on the command-line, while issuing a warning | |
217 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
218 * limit, we flatly refuse to admit the existence of the flag. This allows | |
219 * a flag to die correctly over JDK releases using HSX. | |
220 */ | |
221 typedef struct { | |
222 const char* name; | |
223 JDK_Version obsoleted_in; // when the flag went away | |
224 JDK_Version accept_until; // which version to start denying the existence | |
225 } ObsoleteFlag; | |
0 | 226 |
242 | 227 static ObsoleteFlag obsolete_jvm_flags[] = { |
228 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
229 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
230 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
231 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
232 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
233 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
234 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
235 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
236 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
237 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
238 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
239 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
240 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
241 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 242 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
243 { "DefaultInitialRAMFraction", | |
244 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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245 { "UseDepthFirstScavengeOrder", |
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246 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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247 { "HandlePromotionFailure", |
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248 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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249 { "MaxLiveObjectEvacuationRatio", |
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250 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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251 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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252 { "UseParallelOldGCCompacting", |
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253 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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254 { "UseParallelDensePrefixUpdate", |
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255 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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256 { "UseParallelOldGCDensePrefix", |
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257 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 258 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
242 | 259 { NULL, JDK_Version(0), JDK_Version(0) } |
260 }; | |
261 | |
262 // Returns true if the flag is obsolete and fits into the range specified | |
263 // for being ignored. In the case that the flag is ignored, the 'version' | |
264 // value is filled in with the version number when the flag became | |
265 // obsolete so that that value can be displayed to the user. | |
266 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 267 int i = 0; |
242 | 268 assert(version != NULL, "Must provide a version buffer"); |
269 while (obsolete_jvm_flags[i].name != NULL) { | |
270 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 271 // <flag>=xxx form |
272 // [-|+]<flag> form | |
242 | 273 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 274 ((s[0] == '+' || s[0] == '-') && |
242 | 275 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
276 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
277 *version = flag_status.obsoleted_in; | |
278 return true; | |
279 } | |
0 | 280 } |
281 i++; | |
282 } | |
283 return false; | |
284 } | |
285 | |
286 // Constructs the system class path (aka boot class path) from the following | |
287 // components, in order: | |
288 // | |
289 // prefix // from -Xbootclasspath/p:... | |
290 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
291 // base // from os::get_system_properties() or -Xbootclasspath= | |
292 // suffix // from -Xbootclasspath/a:... | |
293 // | |
294 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
295 // directories are added to the sysclasspath just before the base. | |
296 // | |
297 // This could be AllStatic, but it isn't needed after argument processing is | |
298 // complete. | |
299 class SysClassPath: public StackObj { | |
300 public: | |
301 SysClassPath(const char* base); | |
302 ~SysClassPath(); | |
303 | |
304 inline void set_base(const char* base); | |
305 inline void add_prefix(const char* prefix); | |
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306 inline void add_suffix_to_prefix(const char* suffix); |
0 | 307 inline void add_suffix(const char* suffix); |
308 inline void reset_path(const char* base); | |
309 | |
310 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
311 // property. Must be called after all command-line arguments have been | |
312 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
313 // combined_path(). | |
314 void expand_endorsed(); | |
315 | |
316 inline const char* get_base() const { return _items[_scp_base]; } | |
317 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
318 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
319 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
320 | |
321 // Combine all the components into a single c-heap-allocated string; caller | |
322 // must free the string if/when no longer needed. | |
323 char* combined_path(); | |
324 | |
325 private: | |
326 // Utility routines. | |
327 static char* add_to_path(const char* path, const char* str, bool prepend); | |
328 static char* add_jars_to_path(char* path, const char* directory); | |
329 | |
330 inline void reset_item_at(int index); | |
331 | |
332 // Array indices for the items that make up the sysclasspath. All except the | |
333 // base are allocated in the C heap and freed by this class. | |
334 enum { | |
335 _scp_prefix, // from -Xbootclasspath/p:... | |
336 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
337 _scp_base, // the default sysclasspath | |
338 _scp_suffix, // from -Xbootclasspath/a:... | |
339 _scp_nitems // the number of items, must be last. | |
340 }; | |
341 | |
342 const char* _items[_scp_nitems]; | |
343 DEBUG_ONLY(bool _expansion_done;) | |
344 }; | |
345 | |
346 SysClassPath::SysClassPath(const char* base) { | |
347 memset(_items, 0, sizeof(_items)); | |
348 _items[_scp_base] = base; | |
349 DEBUG_ONLY(_expansion_done = false;) | |
350 } | |
351 | |
352 SysClassPath::~SysClassPath() { | |
353 // Free everything except the base. | |
354 for (int i = 0; i < _scp_nitems; ++i) { | |
355 if (i != _scp_base) reset_item_at(i); | |
356 } | |
357 DEBUG_ONLY(_expansion_done = false;) | |
358 } | |
359 | |
360 inline void SysClassPath::set_base(const char* base) { | |
361 _items[_scp_base] = base; | |
362 } | |
363 | |
364 inline void SysClassPath::add_prefix(const char* prefix) { | |
365 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
366 } | |
367 | |
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368 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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369 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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370 } |
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371 |
0 | 372 inline void SysClassPath::add_suffix(const char* suffix) { |
373 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
374 } | |
375 | |
376 inline void SysClassPath::reset_item_at(int index) { | |
377 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
378 if (_items[index] != NULL) { | |
379 FREE_C_HEAP_ARRAY(char, _items[index]); | |
380 _items[index] = NULL; | |
381 } | |
382 } | |
383 | |
384 inline void SysClassPath::reset_path(const char* base) { | |
385 // Clear the prefix and suffix. | |
386 reset_item_at(_scp_prefix); | |
387 reset_item_at(_scp_suffix); | |
388 set_base(base); | |
389 } | |
390 | |
391 //------------------------------------------------------------------------------ | |
392 | |
393 void SysClassPath::expand_endorsed() { | |
394 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
395 | |
396 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
397 if (path == NULL) { | |
398 path = Arguments::get_endorsed_dir(); | |
399 assert(path != NULL, "no default for java.endorsed.dirs"); | |
400 } | |
401 | |
402 char* expanded_path = NULL; | |
403 const char separator = *os::path_separator(); | |
404 const char* const end = path + strlen(path); | |
405 while (path < end) { | |
406 const char* tmp_end = strchr(path, separator); | |
407 if (tmp_end == NULL) { | |
408 expanded_path = add_jars_to_path(expanded_path, path); | |
409 path = end; | |
410 } else { | |
411 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1); | |
412 memcpy(dirpath, path, tmp_end - path); | |
413 dirpath[tmp_end - path] = '\0'; | |
414 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
415 FREE_C_HEAP_ARRAY(char, dirpath); | |
416 path = tmp_end + 1; | |
417 } | |
418 } | |
419 _items[_scp_endorsed] = expanded_path; | |
420 DEBUG_ONLY(_expansion_done = true;) | |
421 } | |
422 | |
423 // Combine the bootclasspath elements, some of which may be null, into a single | |
424 // c-heap-allocated string. | |
425 char* SysClassPath::combined_path() { | |
426 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
427 assert(_expansion_done, "must call expand_endorsed() first."); | |
428 | |
429 size_t lengths[_scp_nitems]; | |
430 size_t total_len = 0; | |
431 | |
432 const char separator = *os::path_separator(); | |
433 | |
434 // Get the lengths. | |
435 int i; | |
436 for (i = 0; i < _scp_nitems; ++i) { | |
437 if (_items[i] != NULL) { | |
438 lengths[i] = strlen(_items[i]); | |
439 // Include space for the separator char (or a NULL for the last item). | |
440 total_len += lengths[i] + 1; | |
441 } | |
442 } | |
443 assert(total_len > 0, "empty sysclasspath not allowed"); | |
444 | |
445 // Copy the _items to a single string. | |
446 char* cp = NEW_C_HEAP_ARRAY(char, total_len); | |
447 char* cp_tmp = cp; | |
448 for (i = 0; i < _scp_nitems; ++i) { | |
449 if (_items[i] != NULL) { | |
450 memcpy(cp_tmp, _items[i], lengths[i]); | |
451 cp_tmp += lengths[i]; | |
452 *cp_tmp++ = separator; | |
453 } | |
454 } | |
455 *--cp_tmp = '\0'; // Replace the extra separator. | |
456 return cp; | |
457 } | |
458 | |
459 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
460 char* | |
461 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
462 char *cp; | |
463 | |
464 assert(str != NULL, "just checking"); | |
465 if (path == NULL) { | |
466 size_t len = strlen(str) + 1; | |
467 cp = NEW_C_HEAP_ARRAY(char, len); | |
468 memcpy(cp, str, len); // copy the trailing null | |
469 } else { | |
470 const char separator = *os::path_separator(); | |
471 size_t old_len = strlen(path); | |
472 size_t str_len = strlen(str); | |
473 size_t len = old_len + str_len + 2; | |
474 | |
475 if (prepend) { | |
476 cp = NEW_C_HEAP_ARRAY(char, len); | |
477 char* cp_tmp = cp; | |
478 memcpy(cp_tmp, str, str_len); | |
479 cp_tmp += str_len; | |
480 *cp_tmp = separator; | |
481 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
482 FREE_C_HEAP_ARRAY(char, path); | |
483 } else { | |
484 cp = REALLOC_C_HEAP_ARRAY(char, path, len); | |
485 char* cp_tmp = cp + old_len; | |
486 *cp_tmp = separator; | |
487 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
488 } | |
489 } | |
490 return cp; | |
491 } | |
492 | |
493 // Scan the directory and append any jar or zip files found to path. | |
494 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
495 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
496 DIR* dir = os::opendir(directory); | |
497 if (dir == NULL) return path; | |
498 | |
499 char dir_sep[2] = { '\0', '\0' }; | |
500 size_t directory_len = strlen(directory); | |
501 const char fileSep = *os::file_separator(); | |
502 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
503 | |
504 /* Scan the directory for jars/zips, appending them to path. */ | |
505 struct dirent *entry; | |
506 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory)); | |
507 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { | |
508 const char* name = entry->d_name; | |
509 const char* ext = name + strlen(name) - 4; | |
510 bool isJarOrZip = ext > name && | |
511 (os::file_name_strcmp(ext, ".jar") == 0 || | |
512 os::file_name_strcmp(ext, ".zip") == 0); | |
513 if (isJarOrZip) { | |
514 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name)); | |
515 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); | |
516 path = add_to_path(path, jarpath, false); | |
517 FREE_C_HEAP_ARRAY(char, jarpath); | |
518 } | |
519 } | |
520 FREE_C_HEAP_ARRAY(char, dbuf); | |
521 os::closedir(dir); | |
522 return path; | |
523 } | |
524 | |
525 // Parses a memory size specification string. | |
489
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526 static bool atomull(const char *s, julong* result) { |
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527 julong n = 0; |
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528 int args_read = sscanf(s, os::julong_format_specifier(), &n); |
0 | 529 if (args_read != 1) { |
530 return false; | |
531 } | |
532 while (*s != '\0' && isdigit(*s)) { | |
533 s++; | |
534 } | |
535 // 4705540: illegal if more characters are found after the first non-digit | |
536 if (strlen(s) > 1) { | |
537 return false; | |
538 } | |
539 switch (*s) { | |
540 case 'T': case 't': | |
541 *result = n * G * K; | |
489
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542 // Check for overflow. |
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543 if (*result/((julong)G * K) != n) return false; |
0 | 544 return true; |
545 case 'G': case 'g': | |
546 *result = n * G; | |
489
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547 if (*result/G != n) return false; |
0 | 548 return true; |
549 case 'M': case 'm': | |
550 *result = n * M; | |
489
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551 if (*result/M != n) return false; |
0 | 552 return true; |
553 case 'K': case 'k': | |
554 *result = n * K; | |
489
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555 if (*result/K != n) return false; |
0 | 556 return true; |
557 case '\0': | |
558 *result = n; | |
559 return true; | |
560 default: | |
561 return false; | |
562 } | |
563 } | |
564 | |
489
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565 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 566 if (size < min_size) return arg_too_small; |
567 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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568 if (size > max_uintx) return arg_too_big; |
0 | 569 return arg_in_range; |
570 } | |
571 | |
572 // Describe an argument out of range error | |
573 void Arguments::describe_range_error(ArgsRange errcode) { | |
574 switch(errcode) { | |
575 case arg_too_big: | |
576 jio_fprintf(defaultStream::error_stream(), | |
577 "The specified size exceeds the maximum " | |
578 "representable size.\n"); | |
579 break; | |
580 case arg_too_small: | |
581 case arg_unreadable: | |
582 case arg_in_range: | |
583 // do nothing for now | |
584 break; | |
585 default: | |
586 ShouldNotReachHere(); | |
587 } | |
588 } | |
589 | |
590 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
591 return CommandLineFlags::boolAtPut(name, &value, origin); | |
592 } | |
593 | |
594 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
595 double v; | |
596 if (sscanf(value, "%lf", &v) != 1) { | |
597 return false; | |
598 } | |
599 | |
600 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
601 return true; | |
602 } | |
603 return false; | |
604 } | |
605 | |
606 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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607 julong v; |
0 | 608 intx intx_v; |
609 bool is_neg = false; | |
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610 // Check the sign first since atomull() parses only unsigned values. |
0 | 611 if (*value == '-') { |
612 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
613 return false; | |
614 } | |
615 value++; | |
616 is_neg = true; | |
617 } | |
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618 if (!atomull(value, &v)) { |
0 | 619 return false; |
620 } | |
621 intx_v = (intx) v; | |
622 if (is_neg) { | |
623 intx_v = -intx_v; | |
624 } | |
625 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
626 return true; | |
627 } | |
628 uintx uintx_v = (uintx) v; | |
629 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
630 return true; | |
631 } | |
1064 | 632 uint64_t uint64_t_v = (uint64_t) v; |
633 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
634 return true; | |
635 } | |
0 | 636 return false; |
637 } | |
638 | |
639 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
640 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
641 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
642 FREE_C_HEAP_ARRAY(char, value); | |
643 return true; | |
644 } | |
645 | |
646 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
647 const char* old_value = ""; | |
648 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
649 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
650 size_t new_len = strlen(new_value); | |
651 const char* value; | |
652 char* free_this_too = NULL; | |
653 if (old_len == 0) { | |
654 value = new_value; | |
655 } else if (new_len == 0) { | |
656 value = old_value; | |
657 } else { | |
658 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1); | |
659 // each new setting adds another LINE to the switch: | |
660 sprintf(buf, "%s\n%s", old_value, new_value); | |
661 value = buf; | |
662 free_this_too = buf; | |
663 } | |
664 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
665 // CommandLineFlags always returns a pointer that needs freeing. | |
666 FREE_C_HEAP_ARRAY(char, value); | |
667 if (free_this_too != NULL) { | |
668 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
669 FREE_C_HEAP_ARRAY(char, free_this_too); | |
670 } | |
671 return true; | |
672 } | |
673 | |
674 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
675 | |
676 // range of acceptable characters spelled out for portability reasons | |
677 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
678 #define BUFLEN 255 | |
679 char name[BUFLEN+1]; | |
680 char dummy; | |
681 | |
682 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
683 return set_bool_flag(name, false, origin); | |
684 } | |
685 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
686 return set_bool_flag(name, true, origin); | |
687 } | |
688 | |
689 char punct; | |
690 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
691 const char* value = strchr(arg, '=') + 1; | |
692 Flag* flag = Flag::find_flag(name, strlen(name)); | |
693 if (flag != NULL && flag->is_ccstr()) { | |
694 if (flag->ccstr_accumulates()) { | |
695 return append_to_string_flag(name, value, origin); | |
696 } else { | |
697 if (value[0] == '\0') { | |
698 value = NULL; | |
699 } | |
700 return set_string_flag(name, value, origin); | |
701 } | |
702 } | |
703 } | |
704 | |
705 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
706 const char* value = strchr(arg, '=') + 1; | |
707 // -XX:Foo:=xxx will reset the string flag to the given value. | |
708 if (value[0] == '\0') { | |
709 value = NULL; | |
710 } | |
711 return set_string_flag(name, value, origin); | |
712 } | |
713 | |
714 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
715 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
716 #define NUMBER_RANGE "[0123456789]" | |
717 char value[BUFLEN + 1]; | |
718 char value2[BUFLEN + 1]; | |
719 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
720 // Looks like a floating-point number -- try again with more lenient format string | |
721 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
722 return set_fp_numeric_flag(name, value, origin); | |
723 } | |
724 } | |
725 | |
726 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
727 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
728 return set_numeric_flag(name, value, origin); | |
729 } | |
730 | |
731 return false; | |
732 } | |
733 | |
734 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
735 assert(bldarray != NULL, "illegal argument"); | |
736 | |
737 if (arg == NULL) { | |
738 return; | |
739 } | |
740 | |
741 int index = *count; | |
742 | |
743 // expand the array and add arg to the last element | |
744 (*count)++; | |
745 if (*bldarray == NULL) { | |
746 *bldarray = NEW_C_HEAP_ARRAY(char*, *count); | |
747 } else { | |
748 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count); | |
749 } | |
750 (*bldarray)[index] = strdup(arg); | |
751 } | |
752 | |
753 void Arguments::build_jvm_args(const char* arg) { | |
754 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
755 } | |
756 | |
757 void Arguments::build_jvm_flags(const char* arg) { | |
758 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
759 } | |
760 | |
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761 void Arguments::add_graal_arg(const char* arg) { |
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762 add_string(&_graal_args_array, &_num_graal_args, arg); |
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763 } |
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764 |
0 | 765 // utility function to return a string that concatenates all |
766 // strings in a given char** array | |
767 const char* Arguments::build_resource_string(char** args, int count) { | |
768 if (args == NULL || count == 0) { | |
769 return NULL; | |
770 } | |
771 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
772 for (int i = 1; i < count; i++) { | |
773 length += strlen(args[i]) + 1; // add 1 for a space | |
774 } | |
775 char* s = NEW_RESOURCE_ARRAY(char, length); | |
776 strcpy(s, args[0]); | |
777 for (int j = 1; j < count; j++) { | |
778 strcat(s, " "); | |
779 strcat(s, args[j]); | |
780 } | |
781 return (const char*) s; | |
782 } | |
783 | |
784 void Arguments::print_on(outputStream* st) { | |
785 st->print_cr("VM Arguments:"); | |
786 if (num_jvm_flags() > 0) { | |
787 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
788 } | |
789 if (num_jvm_args() > 0) { | |
790 st->print("jvm_args: "); print_jvm_args_on(st); | |
791 } | |
792 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
793 st->print_cr("Launcher Type: %s", _sun_java_launcher); | |
794 } | |
795 | |
796 void Arguments::print_jvm_flags_on(outputStream* st) { | |
797 if (_num_jvm_flags > 0) { | |
798 for (int i=0; i < _num_jvm_flags; i++) { | |
799 st->print("%s ", _jvm_flags_array[i]); | |
800 } | |
801 st->print_cr(""); | |
802 } | |
803 } | |
804 | |
805 void Arguments::print_jvm_args_on(outputStream* st) { | |
806 if (_num_jvm_args > 0) { | |
807 for (int i=0; i < _num_jvm_args; i++) { | |
808 st->print("%s ", _jvm_args_array[i]); | |
809 } | |
810 st->print_cr(""); | |
811 } | |
812 } | |
813 | |
242 | 814 bool Arguments::process_argument(const char* arg, |
815 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
816 | |
817 JDK_Version since = JDK_Version(); | |
0 | 818 |
3250 | 819 if (parse_argument(arg, origin) || ignore_unrecognized) { |
820 return true; | |
0 | 821 } |
3250 | 822 |
823 const char * const argname = *arg == '+' || *arg == '-' ? arg + 1 : arg; | |
824 if (is_newly_obsolete(arg, &since)) { | |
825 char version[256]; | |
826 since.to_string(version, sizeof(version)); | |
827 warning("ignoring option %s; support was removed in %s", argname, version); | |
828 return true; | |
829 } | |
830 | |
831 jio_fprintf(defaultStream::error_stream(), | |
832 "Unrecognized VM option '%s'\n", argname); | |
833 // allow for commandline "commenting out" options like -XX:#+Verbose | |
834 return arg[0] == '#'; | |
0 | 835 } |
836 | |
837 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
838 FILE* stream = fopen(file_name, "rb"); | |
839 if (stream == NULL) { | |
840 if (should_exist) { | |
841 jio_fprintf(defaultStream::error_stream(), | |
842 "Could not open settings file %s\n", file_name); | |
843 return false; | |
844 } else { | |
845 return true; | |
846 } | |
847 } | |
848 | |
849 char token[1024]; | |
850 int pos = 0; | |
851 | |
852 bool in_white_space = true; | |
853 bool in_comment = false; | |
854 bool in_quote = false; | |
855 char quote_c = 0; | |
856 bool result = true; | |
857 | |
858 int c = getc(stream); | |
859 while(c != EOF) { | |
860 if (in_white_space) { | |
861 if (in_comment) { | |
862 if (c == '\n') in_comment = false; | |
863 } else { | |
864 if (c == '#') in_comment = true; | |
865 else if (!isspace(c)) { | |
866 in_white_space = false; | |
867 token[pos++] = c; | |
868 } | |
869 } | |
870 } else { | |
871 if (c == '\n' || (!in_quote && isspace(c))) { | |
872 // token ends at newline, or at unquoted whitespace | |
873 // this allows a way to include spaces in string-valued options | |
874 token[pos] = '\0'; | |
875 logOption(token); | |
876 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
877 build_jvm_flags(token); | |
878 pos = 0; | |
879 in_white_space = true; | |
880 in_quote = false; | |
881 } else if (!in_quote && (c == '\'' || c == '"')) { | |
882 in_quote = true; | |
883 quote_c = c; | |
884 } else if (in_quote && (c == quote_c)) { | |
885 in_quote = false; | |
886 } else { | |
887 token[pos++] = c; | |
888 } | |
889 } | |
890 c = getc(stream); | |
891 } | |
892 if (pos > 0) { | |
893 token[pos] = '\0'; | |
894 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
895 build_jvm_flags(token); | |
896 } | |
897 fclose(stream); | |
898 return result; | |
899 } | |
900 | |
901 //============================================================================================================= | |
902 // Parsing of properties (-D) | |
903 | |
904 const char* Arguments::get_property(const char* key) { | |
905 return PropertyList_get_value(system_properties(), key); | |
906 } | |
907 | |
908 bool Arguments::add_property(const char* prop) { | |
909 const char* eq = strchr(prop, '='); | |
910 char* key; | |
911 // ns must be static--its address may be stored in a SystemProperty object. | |
912 const static char ns[1] = {0}; | |
913 char* value = (char *)ns; | |
914 | |
915 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
916 key = AllocateHeap(key_len + 1, "add_property"); | |
917 strncpy(key, prop, key_len); | |
918 key[key_len] = '\0'; | |
919 | |
920 if (eq != NULL) { | |
921 size_t value_len = strlen(prop) - key_len - 1; | |
922 value = AllocateHeap(value_len + 1, "add_property"); | |
923 strncpy(value, &prop[key_len + 1], value_len + 1); | |
924 } | |
925 | |
926 if (strcmp(key, "java.compiler") == 0) { | |
927 process_java_compiler_argument(value); | |
928 FreeHeap(key); | |
929 if (eq != NULL) { | |
930 FreeHeap(value); | |
931 } | |
932 return true; | |
691 | 933 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 934 _java_command = value; |
935 | |
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936 // Record value in Arguments, but let it get passed to Java. |
691 | 937 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 938 // launcher.pid property is private and is processed |
939 // in process_sun_java_launcher_properties(); | |
940 // the sun.java.launcher property is passed on to the java application | |
941 FreeHeap(key); | |
942 if (eq != NULL) { | |
943 FreeHeap(value); | |
944 } | |
945 return true; | |
691 | 946 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 947 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
948 // its value without going through the property list or making a Java call. | |
949 _java_vendor_url_bug = value; | |
691 | 950 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
951 PropertyList_unique_add(&_system_properties, key, value, true); | |
952 return true; | |
0 | 953 } |
954 // Create new property and add at the end of the list | |
955 PropertyList_unique_add(&_system_properties, key, value); | |
956 return true; | |
957 } | |
958 | |
959 //=========================================================================================================== | |
960 // Setting int/mixed/comp mode flags | |
961 | |
962 void Arguments::set_mode_flags(Mode mode) { | |
963 // Set up default values for all flags. | |
964 // If you add a flag to any of the branches below, | |
965 // add a default value for it here. | |
966 set_java_compiler(false); | |
967 _mode = mode; | |
968 | |
969 // Ensure Agent_OnLoad has the correct initial values. | |
970 // This may not be the final mode; mode may change later in onload phase. | |
971 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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972 (char*)VM_Version::vm_info_string(), false); |
0 | 973 |
974 UseInterpreter = true; | |
975 UseCompiler = true; | |
976 UseLoopCounter = true; | |
977 | |
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978 #ifndef ZERO |
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979 // Turn these off for mixed and comp. Leave them on for Zero. |
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980 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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981 UseFastAccessorMethods = (mode == _int); |
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982 } |
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983 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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984 UseFastEmptyMethods = (mode == _int); |
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985 } |
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986 #endif |
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987 |
0 | 988 // Default values may be platform/compiler dependent - |
989 // use the saved values | |
990 ClipInlining = Arguments::_ClipInlining; | |
991 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
992 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
993 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
994 | |
995 // Change from defaults based on mode | |
996 switch (mode) { | |
997 default: | |
998 ShouldNotReachHere(); | |
999 break; | |
1000 case _int: | |
1001 UseCompiler = false; | |
1002 UseLoopCounter = false; | |
1003 AlwaysCompileLoopMethods = false; | |
1004 UseOnStackReplacement = false; | |
1005 break; | |
1006 case _mixed: | |
1007 // same as default | |
1008 break; | |
1009 case _comp: | |
1010 UseInterpreter = false; | |
1011 BackgroundCompilation = false; | |
1012 ClipInlining = false; | |
1013 break; | |
1014 } | |
1015 } | |
1016 | |
1017 // Conflict: required to use shared spaces (-Xshare:on), but | |
1018 // incompatible command line options were chosen. | |
1019 | |
1020 static void no_shared_spaces() { | |
1021 if (RequireSharedSpaces) { | |
1022 jio_fprintf(defaultStream::error_stream(), | |
1023 "Class data sharing is inconsistent with other specified options.\n"); | |
1024 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1025 } else { | |
1026 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1027 } | |
1028 } | |
1029 | |
1783 | 1030 void Arguments::set_tiered_flags() { |
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1031 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1032 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1033 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1034 } |
1035 if (CompilationPolicyChoice < 2) { | |
1036 vm_exit_during_initialization( | |
1037 "Incompatible compilation policy selected", NULL); | |
1038 } | |
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1039 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1040 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
1041 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
1042 } | |
1043 } | |
1044 | |
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1045 #ifndef KERNEL |
0 | 1046 // If the user has chosen ParallelGCThreads > 0, we set UseParNewGC |
1047 // if it's not explictly set or unset. If the user has chosen | |
1048 // UseParNewGC and not explicitly set ParallelGCThreads we | |
1049 // set it, unless this is a single cpu machine. | |
1050 void Arguments::set_parnew_gc_flags() { | |
1064 | 1051 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1052 "control point invariant"); |
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1053 assert(UseParNewGC, "Error"); |
0 | 1054 |
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1055 // Turn off AdaptiveSizePolicy by default for parnew until it is |
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1056 // complete. |
342
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1057 if (FLAG_IS_DEFAULT(UseAdaptiveSizePolicy)) { |
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1058 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); |
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1059 } |
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1060 |
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1061 if (ParallelGCThreads == 0) { |
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1062 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1063 Abstract_VM_Version::parallel_worker_threads()); |
1064 | 1064 if (ParallelGCThreads == 1) { |
0 | 1065 FLAG_SET_DEFAULT(UseParNewGC, false); |
1064 | 1066 FLAG_SET_DEFAULT(ParallelGCThreads, 0); |
0 | 1067 } |
1068 } | |
1064 | 1069 if (UseParNewGC) { |
1070 // CDS doesn't work with ParNew yet | |
0 | 1071 no_shared_spaces(); |
1072 | |
695 | 1073 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
0 | 1074 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
1075 // we set them to 1024 and 1024. | |
1076 // See CR 6362902. | |
1077 if (FLAG_IS_DEFAULT(YoungPLABSize)) { | |
1078 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); | |
1079 } | |
1080 if (FLAG_IS_DEFAULT(OldPLABSize)) { | |
1081 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); | |
1082 } | |
1083 | |
1064 | 1084 // AlwaysTenure flag should make ParNew promote all at first collection. |
0 | 1085 // See CR 6362902. |
1086 if (AlwaysTenure) { | |
1087 FLAG_SET_CMDLINE(intx, MaxTenuringThreshold, 0); | |
1088 } | |
695 | 1089 // When using compressed oops, we use local overflow stacks, |
1090 // rather than using a global overflow list chained through | |
1091 // the klass word of the object's pre-image. | |
1092 if (UseCompressedOops && !ParGCUseLocalOverflow) { | |
1093 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { | |
1094 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); | |
1095 } | |
1096 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); | |
1097 } | |
1098 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); | |
0 | 1099 } |
1100 } | |
1101 | |
1102 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1103 // sparc/solaris for certain applications, but would gain from | |
1104 // further optimization and tuning efforts, and would almost | |
1105 // certainly gain from analysis of platform and environment. | |
1106 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1107 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
10
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1108 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1109 |
0 | 1110 // If we are using CMS, we prefer to UseParNewGC, |
1111 // unless explicitly forbidden. | |
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1112 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1113 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1114 } |
1115 | |
1116 // Turn off AdaptiveSizePolicy by default for cms until it is | |
10
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1117 // complete. |
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1118 if (FLAG_IS_DEFAULT(UseAdaptiveSizePolicy)) { |
0 | 1119 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); |
1120 } | |
1121 | |
1122 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1123 // as needed. | |
10
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1124 if (UseParNewGC) { |
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1125 set_parnew_gc_flags(); |
0 | 1126 } |
1127 | |
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1128 // MaxHeapSize is aligned down in collectorPolicy |
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1129 size_t max_heap = align_size_down(MaxHeapSize, |
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1130 CardTableRS::ct_max_alignment_constraint()); |
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1131 |
0 | 1132 // Now make adjustments for CMS |
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1133 intx tenuring_default = (intx)6; |
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1134 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1135 |
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1136 // Preferred young gen size for "short" pauses: |
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1137 // upper bound depends on # of threads and NewRatio. |
0 | 1138 const uintx parallel_gc_threads = |
1139 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1140 const size_t preferred_max_new_size_unaligned = | |
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1141 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1142 size_t preferred_max_new_size = |
0 | 1143 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1144 | |
1145 // Unless explicitly requested otherwise, size young gen | |
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1146 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
886
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1147 |
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1148 // If either MaxNewSize or NewRatio is set on the command line, |
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1149 // assume the user is trying to set the size of the young gen. |
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1150 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1151 |
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1152 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1153 // NewSize was set on the command line and it is larger than |
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1154 // preferred_max_new_size. |
0 | 1155 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1156 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1157 } else { |
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1158 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1159 } |
1064 | 1160 if (PrintGCDetails && Verbose) { |
13
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1161 // Too early to use gclog_or_tty |
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1162 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
886
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1163 } |
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1164 |
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1165 // Code along this path potentially sets NewSize and OldSize |
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1166 |
2368
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1167 assert(max_heap >= InitialHeapSize, "Error"); |
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1168 assert(max_heap >= NewSize, "Error"); |
0 | 1169 |
1064 | 1170 if (PrintGCDetails && Verbose) { |
13
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1171 // Too early to use gclog_or_tty |
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1172 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1173 " initial_heap_size: " SIZE_FORMAT |
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1174 " max_heap: " SIZE_FORMAT, |
1064 | 1175 min_heap_size(), InitialHeapSize, max_heap); |
13
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1176 } |
2368
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1177 size_t min_new = preferred_max_new_size; |
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1178 if (FLAG_IS_CMDLINE(NewSize)) { |
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1179 min_new = NewSize; |
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1180 } |
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1181 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1182 // Unless explicitly requested otherwise, make young gen |
1183 // at least min_new, and at most preferred_max_new_size. | |
1184 if (FLAG_IS_DEFAULT(NewSize)) { | |
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1185 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1186 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1187 if (PrintGCDetails && Verbose) { |
13
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1188 // Too early to use gclog_or_tty |
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1189 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1190 } |
0 | 1191 } |
1192 // Unless explicitly requested otherwise, size old gen | |
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1193 // so it's NewRatio x of NewSize. |
0 | 1194 if (FLAG_IS_DEFAULT(OldSize)) { |
1195 if (max_heap > NewSize) { | |
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1196 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1197 if (PrintGCDetails && Verbose) { |
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1198 // Too early to use gclog_or_tty |
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1199 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1200 } |
0 | 1201 } |
1202 } | |
1203 } | |
1204 } | |
1205 // Unless explicitly requested otherwise, definitely | |
1206 // promote all objects surviving "tenuring_default" scavenges. | |
1207 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1208 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
13
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1209 FLAG_SET_ERGO(intx, MaxTenuringThreshold, tenuring_default); |
0 | 1210 } |
1211 // If we decided above (or user explicitly requested) | |
1212 // `promote all' (via MaxTenuringThreshold := 0), | |
1213 // prefer minuscule survivor spaces so as not to waste | |
1214 // space for (non-existent) survivors | |
1215 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
13
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1216 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
0 | 1217 } |
1218 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1219 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1220 // This is done in order to make ParNew+CMS configuration to work | |
1221 // with YoungPLABSize and OldPLABSize options. | |
1222 // See CR 6362902. | |
1223 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1224 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1225 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1226 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1227 // the value (either from the command line or ergonomics) of |
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1228 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1229 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
1145
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1230 } else { |
0 | 1231 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1232 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1233 // we'll let it to take precedence. | |
1234 jio_fprintf(defaultStream::error_stream(), | |
886
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1235 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1236 " options are specified for the CMS collector." |
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1237 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1238 } |
1239 } | |
1145
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1240 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1241 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1242 // unless it was manually specified. This is because a too-low value |
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1243 // will slow down scavenges. |
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1244 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1245 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1246 } |
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1247 } |
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1248 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1249 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1250 // If either of the static initialization defaults have changed, note this |
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1251 // modification. |
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1252 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1253 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1254 } |
1284 | 1255 if (PrintGCDetails && Verbose) { |
1256 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1257 MarkStackSize / K, MarkStackSizeMax / K); | |
1258 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1259 } | |
0 | 1260 } |
1145
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1261 #endif // KERNEL |
0 | 1262 |
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1263 void set_object_alignment() { |
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1264 // Object alignment. |
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1265 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1266 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1267 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1268 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1269 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1270 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1271 |
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1272 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1273 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1274 |
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1275 // Oop encoding heap max |
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1276 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1277 |
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1278 #ifndef KERNEL |
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1279 // Set CMS global values |
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1280 CompactibleFreeListSpace::set_cms_values(); |
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1281 #endif // KERNEL |
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1282 } |
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1283 |
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1284 bool verify_object_alignment() { |
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1285 // Object alignment. |
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1286 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1287 jio_fprintf(defaultStream::error_stream(), |
1829
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1288 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1289 (int)ObjectAlignmentInBytes); |
1571
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1290 return false; |
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1291 } |
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1292 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1293 jio_fprintf(defaultStream::error_stream(), |
1829
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1294 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1295 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1296 return false; |
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1297 } |
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1298 // It does not make sense to have big object alignment |
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1299 // since a space lost due to alignment will be greater |
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1300 // then a saved space from compressed oops. |
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1301 if ((int)ObjectAlignmentInBytes > 256) { |
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1302 jio_fprintf(defaultStream::error_stream(), |
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1303 "error: ObjectAlignmentInBytes=%d must not be greater then 256\n", |
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1304 (int)ObjectAlignmentInBytes); |
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1305 return false; |
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1306 } |
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1307 // In case page size is very small. |
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1308 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1309 jio_fprintf(defaultStream::error_stream(), |
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1310 "error: ObjectAlignmentInBytes=%d must be less then page size %d\n", |
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1311 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1312 return false; |
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1313 } |
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1314 return true; |
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1315 } |
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1316 |
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1317 inline uintx max_heap_for_compressed_oops() { |
1963 | 1318 // Avoid sign flip. |
1319 if (OopEncodingHeapMax < MaxPermSize + os::vm_page_size()) { | |
1320 return 0; | |
1321 } | |
1322 LP64_ONLY(return OopEncodingHeapMax - MaxPermSize - os::vm_page_size()); | |
1064 | 1323 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1324 } |
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1325 |
0 | 1326 bool Arguments::should_auto_select_low_pause_collector() { |
1327 if (UseAutoGCSelectPolicy && | |
1328 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1329 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1330 if (PrintGCDetails) { | |
1331 // Cannot use gclog_or_tty yet. | |
1332 tty->print_cr("Automatic selection of the low pause collector" | |
1333 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1334 } | |
1335 return true; | |
1336 } | |
1337 return false; | |
1338 } | |
1339 | |
1340 void Arguments::set_ergonomics_flags() { | |
1341 // Parallel GC is not compatible with sharing. If one specifies | |
1064 | 1342 // that they want sharing explicitly, do not set ergonomics flags. |
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1343 if (DumpSharedSpaces || RequireSharedSpaces) { |
0 | 1344 return; |
1345 } | |
1346 | |
1347 if (os::is_server_class_machine() && !force_client_mode ) { | |
1348 // If no other collector is requested explicitly, | |
1349 // let the VM select the collector based on | |
1350 // machine class and automatic selection policy. | |
1351 if (!UseSerialGC && | |
1352 !UseConcMarkSweepGC && | |
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1353 !UseG1GC && |
0 | 1354 !UseParNewGC && |
1355 !DumpSharedSpaces && | |
1356 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1357 if (should_auto_select_low_pause_collector()) { | |
1358 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1359 } else { | |
1360 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1361 } | |
1362 no_shared_spaces(); | |
1363 } | |
1364 } | |
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1365 |
1010 | 1366 #ifndef ZERO |
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1367 #ifdef _LP64 |
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1368 // Check that UseCompressedOops can be set with the max heap size allocated |
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1369 // by ergonomics. |
187 | 1370 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
1783 | 1371 #if !defined(COMPILER1) || defined(TIERED) |
2228 | 1372 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
932 | 1373 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1374 } |
1060 | 1375 #endif |
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1376 #ifdef _WIN64 |
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1377 if (UseLargePages && UseCompressedOops) { |
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1378 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1379 // mode, when large pages are specified on windows. |
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1380 // This flag could be switched ON if narrow oop base address is set to 0, |
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1381 // see code in Universe::initialize_heap(). |
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1382 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1383 } |
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1384 #endif // _WIN64 |
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1385 } else { |
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1386 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
344 | 1387 warning("Max heap size too large for Compressed Oops"); |
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1388 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1389 } |
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1390 } |
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1391 // Also checks that certain machines are slower with compressed oops |
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1392 // in vm_version initialization code. |
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1393 #endif // _LP64 |
1010 | 1394 #endif // !ZERO |
0 | 1395 } |
1396 | |
1397 void Arguments::set_parallel_gc_flags() { | |
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1398 assert(UseParallelGC || UseParallelOldGC, "Error"); |
0 | 1399 // If parallel old was requested, automatically enable parallel scavenge. |
1400 if (UseParallelOldGC && !UseParallelGC && FLAG_IS_DEFAULT(UseParallelGC)) { | |
1401 FLAG_SET_DEFAULT(UseParallelGC, true); | |
1402 } | |
1403 | |
1404 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1405 // of the physical memory, up to a maximum of 1GB. | |
1406 if (UseParallelGC) { | |
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1407 FLAG_SET_ERGO(uintx, ParallelGCThreads, |
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1408 Abstract_VM_Version::parallel_worker_threads()); |
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1409 |
0 | 1410 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
1411 // SurvivorRatio has been set, reset their default values to SurvivorRatio + | |
1412 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. | |
1413 // See CR 6362902 for details. | |
1414 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { | |
1415 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { | |
1416 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); | |
1417 } | |
1418 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { | |
1419 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); | |
1420 } | |
1421 } | |
1422 | |
1423 if (UseParallelOldGC) { | |
1424 // Par compact uses lower default values since they are treated as | |
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1425 // minimums. These are different defaults because of the different |
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1426 // interpretation and are not ergonomically set. |
0 | 1427 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
13
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1428 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1429 } |
1430 if (FLAG_IS_DEFAULT(PermMarkSweepDeadRatio)) { | |
13
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1431 FLAG_SET_DEFAULT(PermMarkSweepDeadRatio, 5); |
0 | 1432 } |
1433 } | |
1434 } | |
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1435 if (UseNUMA) { |
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1436 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
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1437 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
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1438 } |
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1439 } |
0 | 1440 } |
1441 | |
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1442 void Arguments::set_g1_gc_flags() { |
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1443 assert(UseG1GC, "Error"); |
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1444 #ifdef COMPILER1 |
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1445 FastTLABRefill = false; |
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1446 #endif |
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1447 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1448 Abstract_VM_Version::parallel_worker_threads()); |
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1449 if (ParallelGCThreads == 0) { |
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1450 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1451 Abstract_VM_Version::parallel_worker_threads()); |
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1452 } |
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1453 no_shared_spaces(); |
751 | 1454 |
1284 | 1455 if (FLAG_IS_DEFAULT(MarkStackSize)) { |
1311
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1456 FLAG_SET_DEFAULT(MarkStackSize, 128 * TASKQUEUE_SIZE); |
1284 | 1457 } |
1458 if (PrintGCDetails && Verbose) { | |
1459 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1460 MarkStackSize / K, MarkStackSizeMax / K); | |
1461 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1462 } | |
1356 | 1463 |
1464 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1465 // In G1, we want the default GC overhead goal to be higher than | |
1466 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1467 // be expanded more aggressively than we would like it to. In | |
1468 // fact, even 10% seems to not be high enough in some cases | |
1469 // (especially small GC stress tests that the main thing they do | |
1470 // is allocation). We might consider increase it further. | |
1471 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1472 } | |
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1473 } |
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1474 |
1064 | 1475 void Arguments::set_heap_size() { |
1476 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1477 // Deprecated flag | |
1478 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1479 } | |
1480 | |
1481 const julong phys_mem = | |
1482 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1483 : (julong)MaxRAM; | |
1484 | |
1485 // If the maximum heap size has not been set with -Xmx, | |
1486 // then set it as fraction of the size of physical memory, | |
1487 // respecting the maximum and minimum sizes of the heap. | |
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1488 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1489 julong reasonable_max = phys_mem / MaxRAMFraction; |
1490 | |
1491 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1492 // Small physical memory, so use a minimum fraction of it for the heap | |
1493 reasonable_max = phys_mem / MinRAMFraction; | |
1494 } else { | |
1495 // Not-small physical memory, so require a heap at least | |
1496 // as large as MaxHeapSize | |
1497 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1498 } | |
1499 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1500 // Limit the heap size to ErgoHeapSizeLimit | |
1501 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
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1502 } |
1064 | 1503 if (UseCompressedOops) { |
1504 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1505 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1506 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1507 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1508 // but it should be not less than default MaxHeapSize. | |
1509 max_coop_heap -= HeapBaseMinAddress; | |
1510 } | |
1511 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1512 } |
1513 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
1514 | |
1515 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1516 // An initial heap size was specified on the command line, | |
1517 // so be sure that the maximum size is consistent. Done | |
1518 // after call to allocatable_physical_memory because that | |
1519 // method might reduce the allocation size. | |
1520 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1521 } | |
1522 | |
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1523 if (PrintGCDetails && Verbose) { |
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1524 // Cannot use gclog_or_tty yet. |
1064 | 1525 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
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1526 } |
1064 | 1527 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1528 } | |
1529 | |
1530 // If the initial_heap_size has not been set with InitialHeapSize | |
1531 // or -Xms, then set it as fraction of the size of physical memory, | |
1532 // respecting the maximum and minimum sizes of the heap. | |
1533 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
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1534 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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1535 |
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1536 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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1537 |
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1538 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
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1539 |
1064 | 1540 julong reasonable_initial = phys_mem / InitialRAMFraction; |
1541 | |
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1542 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
1064 | 1543 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
1544 | |
1545 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
1546 | |
1547 if (PrintGCDetails && Verbose) { | |
1548 // Cannot use gclog_or_tty yet. | |
1549 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
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1550 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
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1551 } |
1064 | 1552 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
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1553 set_min_heap_size((uintx)reasonable_minimum); |
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1554 } |
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1555 } |
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1556 |
0 | 1557 // This must be called after ergonomics because we want bytecode rewriting |
1558 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1559 void Arguments::set_bytecode_flags() { | |
1560 // Better not attempt to store into a read-only space. | |
1561 if (UseSharedSpaces) { | |
1562 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1563 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1564 } | |
1565 | |
1566 if (!RewriteBytecodes) { | |
1567 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1568 } | |
1569 } | |
1570 | |
1571 // Aggressive optimization flags -XX:+AggressiveOpts | |
1572 void Arguments::set_aggressive_opts_flags() { | |
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1573 #ifdef COMPILER2 |
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6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1574 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1575 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1576 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1577 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1578 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
|
1579 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1580 } |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
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|
1581 |
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6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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parents:
0
diff
changeset
|
1582 // 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
|
1583 char buffer[1024]; |
513
2328d1d3f8cf
6781583: Hotspot build fails on linux 64 bit platform with gcc 4.3.2
xlu
parents:
489
diff
changeset
|
1584 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
never
parents:
0
diff
changeset
|
1585 add_property(buffer); |
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1586 } |
65 | 1587 if (AggressiveOpts && FLAG_IS_DEFAULT(DoEscapeAnalysis)) { |
1588 FLAG_SET_DEFAULT(DoEscapeAnalysis, true); | |
1589 } | |
416
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
never
parents:
363
diff
changeset
|
1590 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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parents:
363
diff
changeset
|
1591 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
b6cfd754403d
6649622: HotSpot Biased locking needs tuning on latest CPUs
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diff
changeset
|
1592 } |
1622 | 1593 if (AggressiveOpts && FLAG_IS_DEFAULT(OptimizeStringConcat)) { |
1594 FLAG_SET_DEFAULT(OptimizeStringConcat, true); | |
1595 } | |
1763 | 1596 if (AggressiveOpts && FLAG_IS_DEFAULT(OptimizeFill)) { |
1597 FLAG_SET_DEFAULT(OptimizeFill, true); | |
1598 } | |
17
ff5961f4c095
6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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0
diff
changeset
|
1599 #endif |
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6395208: Elide autoboxing for calls to HashMap.get(int) and HashMap.get(long)
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|
1600 |
0 | 1601 if (AggressiveOpts) { |
61 | 1602 // Sample flag setting code |
1603 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1604 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1605 // } | |
0 | 1606 } |
1607 } | |
1608 | |
1609 //=========================================================================================================== | |
1610 // Parsing of java.compiler property | |
1611 | |
1612 void Arguments::process_java_compiler_argument(char* arg) { | |
1613 // For backwards compatibility, Djava.compiler=NONE or "" | |
1614 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1615 // is also specified. | |
1616 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1617 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1618 } | |
1619 } | |
1620 | |
1621 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1622 _sun_java_launcher = strdup(launcher); | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1623 if (strcmp("gamma", _sun_java_launcher) == 0) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1624 _created_by_gamma_launcher = true; |
da091bb67459
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diff
changeset
|
1625 } |
0 | 1626 } |
1627 | |
1628 bool Arguments::created_by_java_launcher() { | |
1629 assert(_sun_java_launcher != NULL, "property must have value"); | |
1630 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1631 } | |
1632 | |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1633 bool Arguments::created_by_gamma_launcher() { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1634 return _created_by_gamma_launcher; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
1635 } |
da091bb67459
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sla
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2243
diff
changeset
|
1636 |
0 | 1637 //=========================================================================================================== |
1638 // Parsing of main arguments | |
1639 | |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1640 bool Arguments::verify_interval(uintx val, uintx min, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
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diff
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|
1641 uintx max, const char* name) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1642 // 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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parents:
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diff
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|
1643 // false, otherwise. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1644 if (val >= min && val <= max) { |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1645 return true; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
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diff
changeset
|
1646 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1647 jio_fprintf(defaultStream::error_stream(), |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1648 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1649 " and " UINTX_FORMAT "\n", |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1650 name, val, min, max); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1651 return false; |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1652 } |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
johnc
parents:
1188
diff
changeset
|
1653 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1654 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1655 // Returns true if given value is at least specified min threshold |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1656 // false, otherwise. |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1657 if (val >= min ) { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1658 return true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1659 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1660 jio_fprintf(defaultStream::error_stream(), |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
jwilhelm
parents:
2362
diff
changeset
|
1661 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1662 name, val, min); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1663 return false; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1664 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1665 |
0 | 1666 bool Arguments::verify_percentage(uintx value, const char* name) { |
1667 if (value <= 100) { | |
1668 return true; | |
1669 } | |
1670 jio_fprintf(defaultStream::error_stream(), | |
1671 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1672 name, value); | |
1673 return false; | |
1674 } | |
1675 | |
1064 | 1676 static void force_serial_gc() { |
0 | 1677 FLAG_SET_DEFAULT(UseSerialGC, true); |
1678 FLAG_SET_DEFAULT(UseParNewGC, false); | |
1679 FLAG_SET_DEFAULT(UseConcMarkSweepGC, false); | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1680 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
0 | 1681 FLAG_SET_DEFAULT(UseParallelGC, false); |
1682 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1683 FLAG_SET_DEFAULT(UseG1GC, false); |
0 | 1684 } |
1685 | |
1686 static bool verify_serial_gc_flags() { | |
1687 return (UseSerialGC && | |
945
68ef3fdcdb76
6872136: CMS: confusing message may be printed when a collector is switched off implicitly
ysr
parents:
932
diff
changeset
|
1688 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
1689 UseParallelGC || UseParallelOldGC)); |
0 | 1690 } |
1691 | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1692 // Check consistency of GC selection |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1693 bool Arguments::check_gc_consistency() { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1694 bool status = true; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1695 // Ensure that the user has not selected conflicting sets |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1696 // of collectors. [Note: this check is merely a user convenience; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1697 // collectors over-ride each other so that only a non-conflicting |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1698 // set is selected; however what the user gets is not what they |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1699 // may have expected from the combination they asked for. It's |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1700 // better to reduce user confusion by not allowing them to |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1701 // select conflicting combinations. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1702 uint i = 0; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1703 if (UseSerialGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1704 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1705 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
6700789: G1: Enable use of compressed oops with G1 heaps
ysr
parents:
751
diff
changeset
|
1706 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1707 if (i > 1) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1708 jio_fprintf(defaultStream::error_stream(), |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1709 "Conflicting collector combinations in option list; " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1710 "please refer to the release notes for the combinations " |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1711 "allowed\n"); |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1712 status = false; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1713 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1714 |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1715 return status; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1716 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1717 |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1718 // Check stack pages settings |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1719 bool Arguments::check_stack_pages() |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1720 { |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1721 bool status = true; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1722 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1723 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1724 // greater stack shadow pages can't generate instruction to bang stack |
b6aedd1acdc0
6983240: guarantee((Solaris::min_stack_allowed >= (StackYellowPages+StackRedPages...) wrong
coleenp
parents:
1864
diff
changeset
|
1725 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1726 return status; |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1727 } |
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
ptisnovs
parents:
1681
diff
changeset
|
1728 |
0 | 1729 // Check the consistency of vm_init_args |
1730 bool Arguments::check_vm_args_consistency() { | |
1731 // Method for adding checks for flag consistency. | |
1732 // The intent is to warn the user of all possible conflicts, | |
1733 // before returning an error. | |
1734 // Note: Needs platform-dependent factoring. | |
1735 bool status = true; | |
1736 | |
1737 #if ( (defined(COMPILER2) && defined(SPARC))) | |
1738 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
1739 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
1740 // x86. Normally, VM_Version_init must be called from init_globals in | |
1741 // init.cpp, which is called by the initial java thread *after* arguments | |
1742 // have been parsed. VM_Version_init gets called twice on sparc. | |
1743 extern void VM_Version_init(); | |
1744 VM_Version_init(); | |
1745 if (!VM_Version::has_v9()) { | |
1746 jio_fprintf(defaultStream::error_stream(), | |
1747 "V8 Machine detected, Server requires V9\n"); | |
1748 status = false; | |
1749 } | |
1750 #endif /* COMPILER2 && SPARC */ | |
1751 | |
1752 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1753 // builds so the cost of stack banging can be measured. | |
1754 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1755 if (!UseBoundThreads && !UseStackBanging) { | |
1756 jio_fprintf(defaultStream::error_stream(), | |
1757 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1758 | |
1759 status = false; | |
1760 } | |
1761 #endif | |
1762 | |
1763 if (TLABRefillWasteFraction == 0) { | |
1764 jio_fprintf(defaultStream::error_stream(), | |
1765 "TLABRefillWasteFraction should be a denominator, " | |
1766 "not " SIZE_FORMAT "\n", | |
1767 TLABRefillWasteFraction); | |
1768 status = false; | |
1769 } | |
1770 | |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
1771 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
0 | 1772 "AdaptiveSizePolicyWeight"); |
10
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diff
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|
1773 status = status && verify_percentage(AdaptivePermSizeWeight, "AdaptivePermSizeWeight"); |
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0
diff
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|
1774 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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0
diff
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|
1775 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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jmasa
parents:
0
diff
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|
1776 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1777 |
1778 if (MinHeapFreeRatio > MaxHeapFreeRatio) { | |
1779 jio_fprintf(defaultStream::error_stream(), | |
1780 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1781 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1782 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1783 status = false; | |
1784 } | |
1785 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1786 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1787 | |
1788 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
1789 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1790 } | |
1791 | |
483
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diff
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|
1792 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
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diff
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|
1793 // Settings to encourage splitting. |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
449
diff
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|
1794 if (!FLAG_IS_CMDLINE(NewRatio)) { |
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6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
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diff
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|
1795 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
jcoomes
parents:
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diff
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|
1796 } |
0f773163217d
6765954: par compact - stress mode for splitting young gen spaces
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parents:
449
diff
changeset
|
1797 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
0f773163217d
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jcoomes
parents:
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diff
changeset
|
1798 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
0f773163217d
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jcoomes
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diff
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|
1799 } |
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|
1800 } |
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|
1801 |
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|
1802 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
28372612af5e
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0
diff
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|
1803 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1804 if (GCTimeLimit == 100) { |
1805 // Turn off gc-overhead-limit-exceeded checks | |
1806 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
1807 } | |
1808 | |
10
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diff
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|
1809 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
0 | 1810 |
10
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|
1811 status = status && check_gc_consistency(); |
1744
f8c5d1bdaad4
6885308: The incorrect -XX:StackRedPages, -XX:StackShadowPages, -XX:StackYellowPages could cause VM crash
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1681
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|
1812 status = status && check_stack_pages(); |
0 | 1813 |
1814 if (_has_alloc_profile) { | |
1815 if (UseParallelGC || UseParallelOldGC) { | |
1816 jio_fprintf(defaultStream::error_stream(), | |
1817 "error: invalid argument combination.\n" | |
1818 "Allocation profiling (-Xaprof) cannot be used together with " | |
1819 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
1820 status = false; | |
1821 } | |
1822 if (UseConcMarkSweepGC) { | |
1823 jio_fprintf(defaultStream::error_stream(), | |
1824 "error: invalid argument combination.\n" | |
1825 "Allocation profiling (-Xaprof) cannot be used together with " | |
1826 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
1827 status = false; | |
1828 } | |
1829 } | |
1830 | |
1831 if (CMSIncrementalMode) { | |
1832 if (!UseConcMarkSweepGC) { | |
1833 jio_fprintf(defaultStream::error_stream(), | |
1834 "error: invalid argument combination.\n" | |
1835 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
1836 "selected in order\nto use CMSIncrementalMode.\n"); | |
1837 status = false; | |
1838 } else { | |
10
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diff
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|
1839 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 1840 "CMSIncrementalDutyCycle"); |
10
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diff
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|
1841 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 1842 "CMSIncrementalDutyCycleMin"); |
10
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|
1843 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 1844 "CMSIncrementalSafetyFactor"); |
10
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|
1845 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 1846 "CMSIncrementalOffset"); |
10
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|
1847 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 1848 "CMSExpAvgFactor"); |
1849 // If it was not set on the command line, set | |
1850 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
1851 if (CMSInitiatingOccupancyFraction < 0) { | |
1852 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
1853 } | |
1854 } | |
1855 } | |
1856 | |
1857 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
1858 // insists that we hold the requisite locks so that the iteration is | |
1859 // MT-safe. For the verification at start-up and shut-down, we don't | |
1860 // yet have a good way of acquiring and releasing these locks, | |
1861 // which are not visible at the CollectedHeap level. We want to | |
1862 // be able to acquire these locks and then do the iteration rather | |
1863 // than just disable the lock verification. This will be fixed under | |
1864 // bug 4788986. | |
1865 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
1866 if (VerifyGCStartAt == 0) { | |
1867 warning("Heap verification at start-up disabled " | |
1868 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
1869 VerifyGCStartAt = 1; // Disable verification at start-up | |
1870 } | |
1871 if (VerifyBeforeExit) { | |
1872 warning("Heap verification at shutdown disabled " | |
1873 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
1874 VerifyBeforeExit = false; // Disable verification at shutdown | |
1875 } | |
1876 } | |
1877 | |
1878 // Note: only executed in non-PRODUCT mode | |
1879 if (!UseAsyncConcMarkSweepGC && | |
1880 (ExplicitGCInvokesConcurrent || | |
1881 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
1882 jio_fprintf(defaultStream::error_stream(), | |
1883 "error: +ExplictGCInvokesConcurrent[AndUnloadsClasses] conflicts" | |
1884 " with -UseAsyncConcMarkSweepGC"); | |
1885 status = false; | |
1886 } | |
1887 | |
2366
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|
1888 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
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1889 |
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1890 #ifndef SERIALGC |
1283
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1891 if (UseG1GC) { |
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1892 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
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1893 "InitiatingHeapOccupancyPercent"); |
2174
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1894 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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|
1895 "G1RefProcDrainInterval"); |
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1896 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
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1897 "G1ConcMarkStepDurationMillis"); |
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|
1898 } |
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1899 #endif |
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|
1900 |
1244
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|
1901 status = status && verify_interval(RefDiscoveryPolicy, |
745c853ee57f
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|
1902 ReferenceProcessor::DiscoveryPolicyMin, |
745c853ee57f
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|
1903 ReferenceProcessor::DiscoveryPolicyMax, |
745c853ee57f
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|
1904 "RefDiscoveryPolicy"); |
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|
1905 |
745c853ee57f
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|
1906 // Limit the lower bound of this flag to 1 as it is used in a division |
745c853ee57f
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|
1907 // expression. |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1908 status = status && verify_interval(TLABWasteTargetPercent, |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
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|
1909 1, 100, "TLABWasteTargetPercent"); |
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1910 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
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|
1911 status = status && verify_object_alignment(); |
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|
1912 |
0 | 1913 return status; |
1914 } | |
1915 | |
1916 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
1917 const char* option_type) { | |
1918 if (ignore) return false; | |
1919 | |
1920 const char* spacer = " "; | |
1921 if (option_type == NULL) { | |
1922 option_type = ++spacer; // Set both to the empty string. | |
1923 } | |
1924 | |
1925 if (os::obsolete_option(option)) { | |
1926 jio_fprintf(defaultStream::error_stream(), | |
1927 "Obsolete %s%soption: %s\n", option_type, spacer, | |
1928 option->optionString); | |
1929 return false; | |
1930 } else { | |
1931 jio_fprintf(defaultStream::error_stream(), | |
1932 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
1933 option->optionString); | |
1934 return true; | |
1935 } | |
1936 } | |
1937 | |
1938 static const char* user_assertion_options[] = { | |
1939 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
1940 }; | |
1941 | |
1942 static const char* system_assertion_options[] = { | |
1943 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
1944 }; | |
1945 | |
1946 // Return true if any of the strings in null-terminated array 'names' matches. | |
1947 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
1948 // the option must match exactly. | |
1949 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
1950 bool tail_allowed) { | |
1951 for (/* empty */; *names != NULL; ++names) { | |
1952 if (match_option(option, *names, tail)) { | |
1953 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
1954 return true; | |
1955 } | |
1956 } | |
1957 } | |
1958 return false; | |
1959 } | |
1960 | |
1284 | 1961 bool Arguments::parse_uintx(const char* value, |
1962 uintx* uintx_arg, | |
1963 uintx min_size) { | |
1964 | |
1965 // Check the sign first since atomull() parses only unsigned values. | |
1966 bool value_is_positive = !(*value == '-'); | |
1967 | |
1968 if (value_is_positive) { | |
1969 julong n; | |
1970 bool good_return = atomull(value, &n); | |
1971 if (good_return) { | |
1972 bool above_minimum = n >= min_size; | |
1973 bool value_is_too_large = n > max_uintx; | |
1974 | |
1975 if (above_minimum && !value_is_too_large) { | |
1976 *uintx_arg = n; | |
1977 return true; | |
1978 } | |
1979 } | |
1980 } | |
1981 return false; | |
1982 } | |
1983 | |
0 | 1984 Arguments::ArgsRange Arguments::parse_memory_size(const char* s, |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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changeset
|
1985 julong* long_arg, |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
changeset
|
1986 julong min_size) { |
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
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483
diff
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|
1987 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 1988 return check_memory_size(*long_arg, min_size); |
1989 } | |
1990 | |
1991 // Parse JavaVMInitArgs structure | |
1992 | |
1993 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
1994 // For components of the system classpath. | |
1995 SysClassPath scp(Arguments::get_sysclasspath()); | |
1996 bool scp_assembly_required = false; | |
1997 | |
1998 // Save default settings for some mode flags | |
1999 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2000 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2001 Arguments::_ClipInlining = ClipInlining; | |
2002 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2003 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
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3261
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|
2004 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
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|
2005 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
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3261
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|
2006 |
0 | 2007 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2008 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2009 if (result != JNI_OK) { | |
2010 return result; | |
2011 } | |
2012 | |
2013 // Parse JavaVMInitArgs structure passed in | |
2014 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2015 if (result != JNI_OK) { | |
2016 return result; | |
2017 } | |
2018 | |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
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3535
diff
changeset
|
2019 if (UseGraal) { |
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2020 if (PrintVMOptions) { |
3568
409ef3a68dc8
re-lock objects whose lock was removed by escape analysis, enable stack walking compilation policy (-XX:CompilationPolicyChoice=1)
Lukas Stadler <lukas.stadler@jku.at>
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3546
diff
changeset
|
2021 tty->print_cr("Running Graal VM... "); |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2022 } |
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2023 const int BUFFER_SIZE = 1024; |
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2024 char maxine_dir[BUFFER_SIZE]; |
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2025 char temp[BUFFER_SIZE]; |
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2026 if (!os::getenv("MAXINE", maxine_dir, sizeof(maxine_dir))) { |
3601
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2027 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The MAXINE environment variable needs to point to a Maxine repository.\n"); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
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3586
diff
changeset
|
2028 vm_exit(0); |
3543
344264424174
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Thomas Wuerthinger <thomas@wuerthinger.net>
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3535
diff
changeset
|
2029 } |
3568
409ef3a68dc8
re-lock objects whose lock was removed by escape analysis, enable stack walking compilation policy (-XX:CompilationPolicyChoice=1)
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3546
diff
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|
2030 if (PrintVMOptions) tty->print_cr("MAXINE=%s", maxine_dir); |
3601
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
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3586
diff
changeset
|
2031 SysClassPath scp_compiler(Arguments::get_sysclasspath()); |
3822c5969a8b
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diff
changeset
|
2032 sprintf(temp, "%s/com.oracle.max.cri/bin", maxine_dir); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
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3586
diff
changeset
|
2033 scp_compiler.add_prefix(temp); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
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3586
diff
changeset
|
2034 sprintf(temp, "%s/com.oracle.max.criutils/bin", maxine_dir); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2035 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2036 sprintf(temp, "%s/com.oracle.max.base/bin", maxine_dir); |
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parents:
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diff
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|
2037 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2038 sprintf(temp, "%s/com.oracle.max.asmdis/bin", maxine_dir); |
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2039 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2040 sprintf(temp, "%s/com.oracle.max.asm/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
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|
2041 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2042 sprintf(temp, "%s/com.oracle.max.graal.graph/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2043 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2044 sprintf(temp, "%s/com.oracle.max.graal.compiler/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2045 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2046 sprintf(temp, "%s/com.oracle.max.graal.nodes/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2047 scp_compiler.add_prefix(temp); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2048 sprintf(temp, "%s/com.oracle.max.graal.snippets/bin", maxine_dir); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2049 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2050 sprintf(temp, "%s/com.oracle.max.graal.criutils/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2051 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2052 sprintf(temp, "%s/com.oracle.max.graal.extensions/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2053 scp_compiler.add_prefix(temp); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2054 sprintf(temp, "%s/com.oracle.max.graal.hotspot/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2055 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2056 sprintf(temp, "%s/com.oracle.max.graal.graphviz/bin", maxine_dir); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2057 scp_compiler.add_prefix(temp); |
3822c5969a8b
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Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2058 scp_compiler.expand_endorsed(); |
3822c5969a8b
better error messages for missing MAXINE env var and exceptions thrown by the compiler
Lukas Stadler <lukas.stadler@jku.at>
parents:
3586
diff
changeset
|
2059 Arguments::set_compilerclasspath(scp_compiler.combined_path()); |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2060 } |
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2061 |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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diff
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|
2062 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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|
2063 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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513
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|
2064 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
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|
2065 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
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|
2066 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
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|
2067 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
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diff
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|
2068 strlen(altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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diff
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|
2069 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
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diff
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|
2070 strcpy(altclasses_path, get_meta_index_dir()); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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|
2071 strcat(altclasses_path, altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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diff
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|
2072 scp.add_suffix_to_prefix(altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
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diff
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|
2073 scp_assembly_required = true; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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513
diff
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|
2074 FREE_C_HEAP_ARRAY(char, altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
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|
2075 } |
40ee984935b9
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|
2076 |
0 | 2077 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2078 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2079 if (result != JNI_OK) { | |
2080 return result; | |
2081 } | |
2082 | |
2083 // Do final processing now that all arguments have been parsed | |
2084 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2085 if (result != JNI_OK) { | |
2086 return result; | |
2087 } | |
2088 | |
2089 return JNI_OK; | |
2090 } | |
2091 | |
2092 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
2093 SysClassPath* scp_p, | |
2094 bool* scp_assembly_required_p, | |
2095 FlagValueOrigin origin) { | |
2096 // Remaining part of option string | |
2097 const char* tail; | |
2098 | |
2099 // iterate over arguments | |
2100 for (int index = 0; index < args->nOptions; index++) { | |
2101 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2102 | |
2103 const JavaVMOption* option = args->options + index; | |
2104 | |
2105 if (!match_option(option, "-Djava.class.path", &tail) && | |
2106 !match_option(option, "-Dsun.java.command", &tail) && | |
2107 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2108 | |
2109 // add all jvm options to the jvm_args string. This string | |
2110 // is used later to set the java.vm.args PerfData string constant. | |
2111 // the -Djava.class.path and the -Dsun.java.command options are | |
2112 // omitted from jvm_args string as each have their own PerfData | |
2113 // string constant object. | |
2114 build_jvm_args(option->optionString); | |
2115 } | |
2116 | |
2117 // -verbose:[class/gc/jni] | |
2118 if (match_option(option, "-verbose", &tail)) { | |
2119 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2120 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2121 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2122 } else if (!strcmp(tail, ":gc")) { | |
2123 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2124 } else if (!strcmp(tail, ":jni")) { | |
2125 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2126 } | |
2127 // -da / -ea / -disableassertions / -enableassertions | |
2128 // These accept an optional class/package name separated by a colon, e.g., | |
2129 // -da:java.lang.Thread. | |
2130 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2131 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2132 if (*tail == '\0') { | |
2133 JavaAssertions::setUserClassDefault(enable); | |
2134 } else { | |
2135 assert(*tail == ':', "bogus match by match_option()"); | |
2136 JavaAssertions::addOption(tail + 1, enable); | |
2137 } | |
2138 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2139 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2140 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2141 JavaAssertions::setSystemClassDefault(enable); | |
2142 // -bootclasspath: | |
2143 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2144 scp_p->reset_path(tail); | |
2145 *scp_assembly_required_p = true; | |
2146 // -bootclasspath/a: | |
2147 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2148 scp_p->add_suffix(tail); | |
2149 *scp_assembly_required_p = true; | |
2150 // -bootclasspath/p: | |
2151 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2152 scp_p->add_prefix(tail); | |
2153 *scp_assembly_required_p = true; | |
2154 // -Xrun | |
2155 } else if (match_option(option, "-Xrun", &tail)) { | |
531
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2156 if (tail != NULL) { |
0 | 2157 const char* pos = strchr(tail, ':'); |
2158 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
2159 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1), tail, len); | |
2160 name[len] = '\0'; | |
2161 | |
2162 char *options = NULL; | |
2163 if(pos != NULL) { | |
2164 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
2165 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2), pos+1, len2); | |
2166 } | |
2167 #ifdef JVMTI_KERNEL | |
2168 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
2169 warning("profiling and debugging agents are not supported with Kernel VM"); | |
2170 } else | |
2171 #endif // JVMTI_KERNEL | |
2172 add_init_library(name, options); | |
2173 } | |
2174 // -agentlib and -agentpath | |
2175 } else if (match_option(option, "-agentlib:", &tail) || | |
2176 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2177 if(tail != NULL) { | |
2178 const char* pos = strchr(tail, '='); | |
2179 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
2180 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1), tail, len); | |
2181 name[len] = '\0'; | |
2182 | |
2183 char *options = NULL; | |
2184 if(pos != NULL) { | |
2185 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1), pos + 1); | |
2186 } | |
2187 #ifdef JVMTI_KERNEL | |
2188 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
2189 warning("profiling and debugging agents are not supported with Kernel VM"); | |
2190 } else | |
2191 #endif // JVMTI_KERNEL | |
2192 add_init_agent(name, options, is_absolute_path); | |
2193 | |
2194 } | |
2195 // -javaagent | |
2196 } else if (match_option(option, "-javaagent:", &tail)) { | |
2197 if(tail != NULL) { | |
2198 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1), tail); | |
2199 add_init_agent("instrument", options, false); | |
2200 } | |
2201 // -Xnoclassgc | |
2202 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2203 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2204 // -Xincgc: i-CMS | |
2205 } else if (match_option(option, "-Xincgc", &tail)) { | |
2206 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2207 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2208 // -Xnoincgc: no i-CMS | |
2209 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2210 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2211 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2212 // -Xconcgc | |
2213 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2214 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2215 // -Xnoconcgc | |
2216 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2217 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2218 // -Xbatch | |
2219 } else if (match_option(option, "-Xbatch", &tail)) { | |
2220 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2221 // -Xmn for compatibility with other JVM vendors | |
2222 } else if (match_option(option, "-Xmn", &tail)) { | |
489
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|
2223 julong long_initial_eden_size = 0; |
0 | 2224 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2225 if (errcode != arg_in_range) { | |
2226 jio_fprintf(defaultStream::error_stream(), | |
2227 "Invalid initial eden size: %s\n", option->optionString); | |
2228 describe_range_error(errcode); | |
2229 return JNI_EINVAL; | |
2230 } | |
1064 | 2231 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2232 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2233 // -Xms |
2234 } else if (match_option(option, "-Xms", &tail)) { | |
489
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483
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|
2235 julong long_initial_heap_size = 0; |
0 | 2236 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
2237 if (errcode != arg_in_range) { | |
2238 jio_fprintf(defaultStream::error_stream(), | |
2239 "Invalid initial heap size: %s\n", option->optionString); | |
2240 describe_range_error(errcode); | |
2241 return JNI_EINVAL; | |
2242 } | |
1064 | 2243 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2244 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2245 set_min_heap_size(InitialHeapSize); |
0 | 2246 // -Xmx |
2247 } else if (match_option(option, "-Xmx", &tail)) { | |
489
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|
2248 julong long_max_heap_size = 0; |
0 | 2249 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2250 if (errcode != arg_in_range) { | |
2251 jio_fprintf(defaultStream::error_stream(), | |
2252 "Invalid maximum heap size: %s\n", option->optionString); | |
2253 describe_range_error(errcode); | |
2254 return JNI_EINVAL; | |
2255 } | |
1064 | 2256 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2257 // Xmaxf |
2258 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2259 int maxf = (int)(atof(tail) * 100); | |
2260 if (maxf < 0 || maxf > 100) { | |
2261 jio_fprintf(defaultStream::error_stream(), | |
2262 "Bad max heap free percentage size: %s\n", | |
2263 option->optionString); | |
2264 return JNI_EINVAL; | |
2265 } else { | |
2266 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2267 } | |
2268 // Xminf | |
2269 } else if (match_option(option, "-Xminf", &tail)) { | |
2270 int minf = (int)(atof(tail) * 100); | |
2271 if (minf < 0 || minf > 100) { | |
2272 jio_fprintf(defaultStream::error_stream(), | |
2273 "Bad min heap free percentage size: %s\n", | |
2274 option->optionString); | |
2275 return JNI_EINVAL; | |
2276 } else { | |
2277 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2278 } | |
2279 // -Xss | |
2280 } else if (match_option(option, "-Xss", &tail)) { | |
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|
2281 julong long_ThreadStackSize = 0; |
0 | 2282 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2283 if (errcode != arg_in_range) { | |
2284 jio_fprintf(defaultStream::error_stream(), | |
2285 "Invalid thread stack size: %s\n", option->optionString); | |
2286 describe_range_error(errcode); | |
2287 return JNI_EINVAL; | |
2288 } | |
2289 // Internally track ThreadStackSize in units of 1024 bytes. | |
2290 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2291 round_to((int)long_ThreadStackSize, K) / K); | |
2292 // -Xoss | |
2293 } else if (match_option(option, "-Xoss", &tail)) { | |
2294 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
2295 // -Xmaxjitcodesize | |
2095
36c186bcc085
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diff
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|
2296 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
36c186bcc085
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diff
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|
2297 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
489
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483
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|
2298 julong long_ReservedCodeCacheSize = 0; |
0 | 2299 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
489
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483
diff
changeset
|
2300 (size_t)InitialCodeCacheSize); |
0 | 2301 if (errcode != arg_in_range) { |
2302 jio_fprintf(defaultStream::error_stream(), | |
2095
36c186bcc085
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coleenp
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2002
diff
changeset
|
2303 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
36c186bcc085
6302804: Hotspot VM dies ungraceful death when C heap is exhausted in various places.
coleenp
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diff
changeset
|
2304 option->optionString, InitialCodeCacheSize/K); |
0 | 2305 describe_range_error(errcode); |
2306 return JNI_EINVAL; | |
2307 } | |
2308 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
2309 // -green | |
2310 } else if (match_option(option, "-green", &tail)) { | |
2311 jio_fprintf(defaultStream::error_stream(), | |
2312 "Green threads support not available\n"); | |
2313 return JNI_EINVAL; | |
2314 // -native | |
2315 } else if (match_option(option, "-native", &tail)) { | |
2316 // HotSpot always uses native threads, ignore silently for compatibility | |
2317 // -Xsqnopause | |
2318 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2319 // EVM option, ignore silently for compatibility | |
2320 // -Xrs | |
2321 } else if (match_option(option, "-Xrs", &tail)) { | |
2322 // Classic/EVM option, new functionality | |
2323 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2324 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2325 // change default internal VM signals used - lower case for back compat | |
2326 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2327 // -Xoptimize | |
2328 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2329 // EVM option, ignore silently for compatibility | |
2330 // -Xprof | |
2331 } else if (match_option(option, "-Xprof", &tail)) { | |
2332 #ifndef FPROF_KERNEL | |
2333 _has_profile = true; | |
2334 #else // FPROF_KERNEL | |
2335 // do we have to exit? | |
2336 warning("Kernel VM does not support flat profiling."); | |
2337 #endif // FPROF_KERNEL | |
2338 // -Xaprof | |
2339 } else if (match_option(option, "-Xaprof", &tail)) { | |
2340 _has_alloc_profile = true; | |
2341 // -Xconcurrentio | |
2342 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2343 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2344 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2345 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2346 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2347 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2348 | |
2349 // -Xinternalversion | |
2350 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2351 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2352 VM_Version::internal_vm_info_string()); | |
2353 vm_exit(0); | |
2354 #ifndef PRODUCT | |
2355 // -Xprintflags | |
2356 } else if (match_option(option, "-Xprintflags", &tail)) { | |
2357 CommandLineFlags::printFlags(); | |
2358 vm_exit(0); | |
2359 #endif | |
2360 // -D | |
2361 } else if (match_option(option, "-D", &tail)) { | |
2362 if (!add_property(tail)) { | |
2363 return JNI_ENOMEM; | |
2364 } | |
2365 // Out of the box management support | |
2366 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
2367 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
2368 } | |
2369 // -Xint | |
2370 } else if (match_option(option, "-Xint", &tail)) { | |
2371 set_mode_flags(_int); | |
2372 // -Xmixed | |
2373 } else if (match_option(option, "-Xmixed", &tail)) { | |
2374 set_mode_flags(_mixed); | |
2375 // -Xcomp | |
2376 } else if (match_option(option, "-Xcomp", &tail)) { | |
2377 // for testing the compiler; turn off all flags that inhibit compilation | |
2378 set_mode_flags(_comp); | |
2379 | |
2380 // -Xshare:dump | |
2381 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2382 #ifdef TIERED | |
2383 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2384 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2385 #elif defined(COMPILER2) | |
2386 vm_exit_during_initialization( | |
2387 "Dumping a shared archive is not supported on the Server JVM.", NULL); | |
2388 #elif defined(KERNEL) | |
2389 vm_exit_during_initialization( | |
2390 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
2391 #else | |
2392 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2393 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2394 #endif | |
2395 // -Xshare:on | |
2396 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2397 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2398 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2399 // -Xshare:auto | |
2400 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2401 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2402 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2403 // -Xshare:off | |
2404 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2405 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2406 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2407 | |
2408 // -Xverify | |
2409 } else if (match_option(option, "-Xverify", &tail)) { | |
2410 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2411 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2412 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2413 } else if (strcmp(tail, ":remote") == 0) { | |
2414 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2415 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2416 } else if (strcmp(tail, ":none") == 0) { | |
2417 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2418 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2419 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2420 return JNI_EINVAL; | |
2421 } | |
2422 // -Xdebug | |
2423 } else if (match_option(option, "-Xdebug", &tail)) { | |
2424 // note this flag has been used, then ignore | |
2425 set_xdebug_mode(true); | |
2426 // -Xnoagent | |
2427 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2428 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2429 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2430 // Bind user level threads to kernel threads (Solaris only) | |
2431 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2432 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2433 // Redirect GC output to the file. -Xloggc:<filename> | |
2434 // ostream_init_log(), when called will use this filename | |
2435 // to initialize a fileStream. | |
2436 _gc_log_filename = strdup(tail); | |
2437 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2438 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2439 | |
2440 // JNI hooks | |
2441 } else if (match_option(option, "-Xcheck", &tail)) { | |
2442 if (!strcmp(tail, ":jni")) { | |
2443 CheckJNICalls = true; | |
2444 } else if (is_bad_option(option, args->ignoreUnrecognized, | |
2445 "check")) { | |
2446 return JNI_EINVAL; | |
2447 } | |
2448 } else if (match_option(option, "vfprintf", &tail)) { | |
2449 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2450 } else if (match_option(option, "exit", &tail)) { | |
2451 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2452 } else if (match_option(option, "abort", &tail)) { | |
2453 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2454 // -XX:+AggressiveHeap | |
2455 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2456 | |
2457 // This option inspects the machine and attempts to set various | |
2458 // parameters to be optimal for long-running, memory allocation | |
2459 // intensive jobs. It is intended for machines with large | |
2460 // amounts of cpu and memory. | |
2461 | |
2462 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2463 // VM, but we may not be able to represent the total physical memory | |
2464 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2465 // Thus, we need to make sure we're using a julong for intermediate | |
2466 // calculations. | |
2467 julong initHeapSize; | |
2468 julong total_memory = os::physical_memory(); | |
2469 | |
2470 if (total_memory < (julong)256*M) { | |
2471 jio_fprintf(defaultStream::error_stream(), | |
2472 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2473 vm_exit(1); | |
2474 } | |
2475 | |
2476 // The heap size is half of available memory, or (at most) | |
2477 // all of possible memory less 160mb (leaving room for the OS | |
2478 // when using ISM). This is the maximum; because adaptive sizing | |
2479 // is turned on below, the actual space used may be smaller. | |
2480 | |
2481 initHeapSize = MIN2(total_memory / (julong)2, | |
2482 total_memory - (julong)160*M); | |
2483 | |
2484 // Make sure that if we have a lot of memory we cap the 32 bit | |
2485 // process space. The 64bit VM version of this function is a nop. | |
2486 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
2487 | |
2488 // The perm gen is separate but contiguous with the | |
2489 // object heap (and is reserved with it) so subtract it | |
2490 // from the heap size. | |
2491 if (initHeapSize > MaxPermSize) { | |
2492 initHeapSize = initHeapSize - MaxPermSize; | |
2493 } else { | |
2494 warning("AggressiveHeap and MaxPermSize values may conflict"); | |
2495 } | |
2496 | |
2497 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2498 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2499 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2500 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2501 set_min_heap_size(initHeapSize); |
0 | 2502 } |
2503 if (FLAG_IS_DEFAULT(NewSize)) { | |
2504 // Make the young generation 3/8ths of the total heap. | |
2505 FLAG_SET_CMDLINE(uintx, NewSize, | |
2506 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2507 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2508 } | |
2509 | |
2510 FLAG_SET_DEFAULT(UseLargePages, true); | |
2511 | |
2512 // Increase some data structure sizes for efficiency | |
2513 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2514 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2515 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2516 | |
2517 // See the OldPLABSize comment below, but replace 'after promotion' | |
2518 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2519 // space per-gc-thread buffers. The default is 4kw. | |
2520 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2521 | |
2522 // OldPLABSize is the size of the buffers in the old gen that | |
2523 // UseParallelGC uses to promote live data that doesn't fit in the | |
2524 // survivor spaces. At any given time, there's one for each gc thread. | |
2525 // The default size is 1kw. These buffers are rarely used, since the | |
2526 // survivor spaces are usually big enough. For specjbb, however, there | |
2527 // are occasions when there's lots of live data in the young gen | |
2528 // and we end up promoting some of it. We don't have a definite | |
2529 // explanation for why bumping OldPLABSize helps, but the theory | |
2530 // is that a bigger PLAB results in retaining something like the | |
2531 // original allocation order after promotion, which improves mutator | |
2532 // locality. A minor effect may be that larger PLABs reduce the | |
2533 // number of PLAB allocation events during gc. The value of 8kw | |
2534 // was arrived at by experimenting with specjbb. | |
2535 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2536 | |
2537 // CompilationPolicyChoice=0 causes the server compiler to adopt | |
2538 // a more conservative which-method-do-I-compile policy when one | |
2539 // of the counters maintained by the interpreter trips. The | |
2540 // result is reduced startup time and improved specjbb and | |
2541 // alacrity performance. Zero is the default, but we set it | |
2542 // explicitly here in case the default changes. | |
2543 // See runtime/compilationPolicy.*. | |
2544 FLAG_SET_CMDLINE(intx, CompilationPolicyChoice, 0); | |
2545 | |
2546 // Enable parallel GC and adaptive generation sizing | |
2547 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
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2548 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2549 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2550 |
2551 // Encourage steady state memory management | |
2552 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2553 | |
2554 // This appears to improve mutator locality | |
2555 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2556 | |
2557 // Get around early Solaris scheduling bug | |
2558 // (affinity vs other jobs on system) | |
2559 // but disallow DR and offlining (5008695). | |
2560 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2561 | |
2562 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2563 // The last option must always win. | |
2564 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2565 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2566 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2567 // The last option must always win. | |
2568 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2569 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2570 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2571 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2572 jio_fprintf(defaultStream::error_stream(), | |
2573 "Please use CMSClassUnloadingEnabled in place of " | |
2574 "CMSPermGenSweepingEnabled in the future\n"); | |
2575 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2576 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2577 jio_fprintf(defaultStream::error_stream(), | |
2578 "Please use -XX:+UseGCOverheadLimit in place of " | |
2579 "-XX:+UseGCTimeLimit in the future\n"); | |
2580 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2581 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2582 jio_fprintf(defaultStream::error_stream(), | |
2583 "Please use -XX:-UseGCOverheadLimit in place of " | |
2584 "-XX:-UseGCTimeLimit in the future\n"); | |
2585 // The TLE options are for compatibility with 1.3 and will be | |
2586 // removed without notice in a future release. These options | |
2587 // are not to be documented. | |
2588 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2589 // No longer used. | |
2590 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2591 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2592 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2593 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2594 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2595 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2596 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2597 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2598 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2599 // No longer used. | |
2600 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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2601 julong long_tlab_size = 0; |
0 | 2602 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2603 if (errcode != arg_in_range) { | |
2604 jio_fprintf(defaultStream::error_stream(), | |
2605 "Invalid TLAB size: %s\n", option->optionString); | |
2606 describe_range_error(errcode); | |
2607 return JNI_EINVAL; | |
2608 } | |
2609 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2610 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2611 // No longer used. | |
2612 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2613 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2614 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2615 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2616 SOLARIS_ONLY( | |
2617 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
2618 warning("-XX:+UsePermISM is obsolete."); | |
2619 FLAG_SET_CMDLINE(bool, UseISM, true); | |
2620 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
2621 FLAG_SET_CMDLINE(bool, UseISM, false); | |
2622 ) | |
2623 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2624 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2625 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2626 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2627 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2628 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2629 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
2630 #ifdef SOLARIS | |
2631 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); | |
2632 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2633 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2634 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
2635 #else // ndef SOLARIS | |
2636 jio_fprintf(defaultStream::error_stream(), | |
2637 "ExtendedDTraceProbes flag is only applicable on Solaris\n"); | |
2638 return JNI_EINVAL; | |
2639 #endif // ndef SOLARIS | |
2640 #ifdef ASSERT | |
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2641 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2642 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2643 // disable scavenge before parallel mark-compact | |
2644 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2645 #endif | |
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2646 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 2647 julong cms_blocks_to_claim = (julong)atol(tail); |
2648 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
2649 jio_fprintf(defaultStream::error_stream(), | |
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2650 "Please use -XX:OldPLABSize in place of " |
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2651 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
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2652 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
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2653 julong cms_blocks_to_claim = (julong)atol(tail); |
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2654 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
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2655 jio_fprintf(defaultStream::error_stream(), |
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2656 "Please use -XX:OldPLABSize in place of " |
0 | 2657 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
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2658 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
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2659 julong old_plab_size = 0; |
0 | 2660 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
2661 if (errcode != arg_in_range) { | |
2662 jio_fprintf(defaultStream::error_stream(), | |
2663 "Invalid old PLAB size: %s\n", option->optionString); | |
2664 describe_range_error(errcode); | |
2665 return JNI_EINVAL; | |
2666 } | |
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2667 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 2668 jio_fprintf(defaultStream::error_stream(), |
2669 "Please use -XX:OldPLABSize in place of " | |
2670 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
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2671 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
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2672 julong young_plab_size = 0; |
0 | 2673 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
2674 if (errcode != arg_in_range) { | |
2675 jio_fprintf(defaultStream::error_stream(), | |
2676 "Invalid young PLAB size: %s\n", option->optionString); | |
2677 describe_range_error(errcode); | |
2678 return JNI_EINVAL; | |
2679 } | |
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2680 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 2681 jio_fprintf(defaultStream::error_stream(), |
2682 "Please use -XX:YoungPLABSize in place of " | |
2683 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 2684 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
2685 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
2686 julong stack_size = 0; | |
2687 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
2688 if (errcode != arg_in_range) { | |
2689 jio_fprintf(defaultStream::error_stream(), | |
2690 "Invalid mark stack size: %s\n", option->optionString); | |
2691 describe_range_error(errcode); | |
2692 return JNI_EINVAL; | |
2693 } | |
2694 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
2695 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
2696 julong max_stack_size = 0; | |
2697 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
2698 if (errcode != arg_in_range) { | |
2699 jio_fprintf(defaultStream::error_stream(), | |
2700 "Invalid maximum mark stack size: %s\n", | |
2701 option->optionString); | |
2702 describe_range_error(errcode); | |
2703 return JNI_EINVAL; | |
2704 } | |
2705 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
2706 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
2707 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
2708 uintx conc_threads = 0; | |
2709 if (!parse_uintx(tail, &conc_threads, 1)) { | |
2710 jio_fprintf(defaultStream::error_stream(), | |
2711 "Invalid concurrent threads: %s\n", option->optionString); | |
2712 return JNI_EINVAL; | |
2713 } | |
2714 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2715 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 2716 // Skip -XX:Flags= since that case has already been handled |
2717 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
2718 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
2719 return JNI_EINVAL; | |
2720 } | |
2721 } | |
2906
0017f484608c
Made boolean options more robust to also allow -G:Time or -G:Meter.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2901
diff
changeset
|
2722 } else if (match_option(option, "-G:", &tail)) { // -G:XXX |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2723 // Option for the graal compiler. |
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
2724 if (PrintVMOptions) { |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2725 tty->print_cr("graal option %s", tail); |
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
2726 } |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2727 Arguments::add_graal_arg(tail); |
1437
9e5e83ca2259
Enabled -C1X:OPTIONS when running HotSpot/C1X. Enabled checkstyle for the HotSpotVM Java project.
Thomas Wuerthinger <wuerthinger@ssw.jku.at>
parents:
1356
diff
changeset
|
2728 |
0 | 2729 // Unknown option |
2730 } else if (is_bad_option(option, args->ignoreUnrecognized)) { | |
2731 return JNI_ERR; | |
2732 } | |
2733 } | |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2734 // 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
|
2735 // when working with older JDKs. |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2736 if (JDK_Version::current().compare_major(6) <= 0 && |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2737 FLAG_IS_DEFAULT(UseVMInterruptibleIO)) { |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2738 FLAG_SET_DEFAULT(UseVMInterruptibleIO, true); |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2739 } |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2740 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2741 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2742 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2743 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2744 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2745 #endif // LINUX |
0 | 2746 return JNI_OK; |
2747 } | |
2748 | |
2749 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
2750 // This must be done after all -D arguments have been processed. | |
2751 scp_p->expand_endorsed(); | |
2752 | |
2753 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
2754 // Assemble the bootclasspath elements into the final path. | |
2755 Arguments::set_sysclasspath(scp_p->combined_path()); | |
2756 } | |
2757 | |
2758 // This must be done after all arguments have been processed. | |
2759 // java_compiler() true means set to "NONE" or empty. | |
2760 if (java_compiler() && !xdebug_mode()) { | |
2761 // For backwards compatibility, we switch to interpreted mode if | |
2762 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
2763 // not specified. | |
2764 set_mode_flags(_int); | |
2765 } | |
2766 if (CompileThreshold == 0) { | |
2767 set_mode_flags(_int); | |
2768 } | |
2769 | |
2770 #ifndef COMPILER2 | |
2771 // Don't degrade server performance for footprint | |
2772 if (FLAG_IS_DEFAULT(UseLargePages) && | |
2773 MaxHeapSize < LargePageHeapSizeThreshold) { | |
2774 // No need for large granularity pages w/small heaps. | |
2775 // Note that large pages are enabled/disabled for both the | |
2776 // Java heap and the code cache. | |
2777 FLAG_SET_DEFAULT(UseLargePages, false); | |
2778 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
2779 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
2780 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2781 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2782 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2783 TieredCompilation = false; |
0 | 2784 #else |
2785 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
2786 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
2787 } | |
2788 #endif | |
2789 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2790 // 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
|
2791 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2792 // 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
|
2793 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2794 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2795 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2796 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2797 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2798 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2799 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2800 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2801 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2802 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2803 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2804 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2805 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2806 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2807 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2808 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2809 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2810 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2811 |
0 | 2812 if (!check_vm_args_consistency()) { |
2813 return JNI_ERR; | |
2814 } | |
2815 | |
2816 return JNI_OK; | |
2817 } | |
2818 | |
2819 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
2820 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
2821 scp_assembly_required_p); | |
2822 } | |
2823 | |
2824 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
2825 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
2826 scp_assembly_required_p); | |
2827 } | |
2828 | |
2829 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
2830 const int N_MAX_OPTIONS = 64; | |
2831 const int OPTION_BUFFER_SIZE = 1024; | |
2832 char buffer[OPTION_BUFFER_SIZE]; | |
2833 | |
2834 // The variable will be ignored if it exceeds the length of the buffer. | |
2835 // Don't check this variable if user has special privileges | |
2836 // (e.g. unix su command). | |
2837 if (os::getenv(name, buffer, sizeof(buffer)) && | |
2838 !os::have_special_privileges()) { | |
2839 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
2840 jio_fprintf(defaultStream::error_stream(), | |
2841 "Picked up %s: %s\n", name, buffer); | |
2842 char* rd = buffer; // pointer to the input string (rd) | |
2843 int i; | |
2844 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
2845 while (isspace(*rd)) rd++; // skip whitespace | |
2846 if (*rd == 0) break; // we re done when the input string is read completely | |
2847 | |
2848 // The output, option string, overwrites the input string. | |
2849 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
2850 // input string (rd). | |
2851 char* wrt = rd; | |
2852 | |
2853 options[i++].optionString = wrt; // Fill in option | |
2854 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
2855 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
2856 int quote = *rd; // matching quote to look for | |
2857 rd++; // don't copy open quote | |
2858 while (*rd != quote) { // include everything (even spaces) up until quote | |
2859 if (*rd == 0) { // string termination means unmatched string | |
2860 jio_fprintf(defaultStream::error_stream(), | |
2861 "Unmatched quote in %s\n", name); | |
2862 return JNI_ERR; | |
2863 } | |
2864 *wrt++ = *rd++; // copy to option string | |
2865 } | |
2866 rd++; // don't copy close quote | |
2867 } else { | |
2868 *wrt++ = *rd++; // copy to option string | |
2869 } | |
2870 } | |
2871 // Need to check if we're done before writing a NULL, | |
2872 // because the write could be to the byte that rd is pointing to. | |
2873 if (*rd++ == 0) { | |
2874 *wrt = 0; | |
2875 break; | |
2876 } | |
2877 *wrt = 0; // Zero terminate option | |
2878 } | |
2879 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
2880 JavaVMInitArgs vm_args; | |
2881 vm_args.version = JNI_VERSION_1_2; | |
2882 vm_args.options = options; | |
2883 vm_args.nOptions = i; | |
564 | 2884 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 2885 |
2886 if (PrintVMOptions) { | |
2887 const char* tail; | |
2888 for (int i = 0; i < vm_args.nOptions; i++) { | |
2889 const JavaVMOption *option = vm_args.options + i; | |
2890 if (match_option(option, "-XX:", &tail)) { | |
2891 logOption(tail); | |
2892 } | |
2893 } | |
2894 } | |
2895 | |
2896 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
2897 } | |
2898 return JNI_OK; | |
2899 } | |
2900 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2901 void Arguments::set_shared_spaces_flags() { |
2378 | 2902 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
2903 const bool might_share = must_share || UseSharedSpaces; | |
2904 | |
2905 // The string table is part of the shared archive so the size must match. | |
2906 if (!FLAG_IS_DEFAULT(StringTableSize)) { | |
2907 // Disable sharing. | |
2908 if (must_share) { | |
2909 warning("disabling shared archive %s because of non-default " | |
2910 "StringTableSize", DumpSharedSpaces ? "creation" : "use"); | |
2911 } | |
2912 if (might_share) { | |
2913 FLAG_SET_DEFAULT(DumpSharedSpaces, false); | |
2914 FLAG_SET_DEFAULT(RequireSharedSpaces, false); | |
2915 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
2916 } | |
2917 return; | |
2918 } | |
2919 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2920 // Check whether class data sharing settings conflict with GC, compressed oops |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2921 // or page size, and fix them up. Explicit sharing options override other |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2922 // settings. |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2923 const bool cannot_share = UseConcMarkSweepGC || CMSIncrementalMode || |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2924 UseG1GC || UseParNewGC || UseParallelGC || UseParallelOldGC || |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2925 UseCompressedOops || UseLargePages && FLAG_IS_CMDLINE(UseLargePages); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2926 if (cannot_share) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2927 if (must_share) { |
2378 | 2928 warning("selecting serial gc and disabling large pages %s" |
2929 "because of %s", "" LP64_ONLY("and compressed oops "), | |
2930 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
2931 force_serial_gc(); | |
2932 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
2933 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2934 } else { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2935 if (UseSharedSpaces && Verbose) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2936 warning("turning off use of shared archive because of " |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2937 "choice of garbage collector or large pages"); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2938 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2939 no_shared_spaces(); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2940 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2941 } else if (UseLargePages && might_share) { |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2942 // Disable large pages to allow shared spaces. This is sub-optimal, since |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2943 // there may not even be a shared archive to use. |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2944 FLAG_SET_DEFAULT(UseLargePages, false); |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2945 } |
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
2946 } |
1891
9de67bf4244d
6996136: VM crash in src/share/vm/runtime/virtualspace.cpp:424
iveresov
parents:
1890
diff
changeset
|
2947 |
0 | 2948 // Parse entry point called from JNI_CreateJavaVM |
2949 | |
2950 jint Arguments::parse(const JavaVMInitArgs* args) { | |
2951 | |
2952 // Sharing support | |
2953 // Construct the path to the archive | |
2954 char jvm_path[JVM_MAXPATHLEN]; | |
2955 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
2956 #ifdef TIERED | |
2957 if (strstr(jvm_path, "client") != NULL) { | |
2958 force_client_mode = true; | |
2959 } | |
2960 #endif // TIERED | |
2961 char *end = strrchr(jvm_path, *os::file_separator()); | |
2962 if (end != NULL) *end = '\0'; | |
2963 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
2964 strlen(os::file_separator()) + 20); | |
2965 if (shared_archive_path == NULL) return JNI_ENOMEM; | |
2966 strcpy(shared_archive_path, jvm_path); | |
2967 strcat(shared_archive_path, os::file_separator()); | |
2968 strcat(shared_archive_path, "classes"); | |
2969 DEBUG_ONLY(strcat(shared_archive_path, "_g");) | |
2970 strcat(shared_archive_path, ".jsa"); | |
2971 SharedArchivePath = shared_archive_path; | |
2972 | |
2973 // Remaining part of option string | |
2974 const char* tail; | |
2975 | |
2976 // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. | |
2977 bool settings_file_specified = false; | |
564 | 2978 const char* flags_file; |
0 | 2979 int index; |
2980 for (index = 0; index < args->nOptions; index++) { | |
2981 const JavaVMOption *option = args->options + index; | |
2982 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 2983 flags_file = tail; |
0 | 2984 settings_file_specified = true; |
2985 } | |
2986 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
2987 PrintVMOptions = true; | |
2988 } | |
253
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
2989 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
|
2990 PrintVMOptions = false; |
b0fe4deeb9fb
6726999: nsk/stress/jck12a/jck12a010 assert(n != null,"Bad immediate dominator info.")
kvn
parents:
196
diff
changeset
|
2991 } |
564 | 2992 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
2993 IgnoreUnrecognizedVMOptions = true; | |
2994 } | |
2995 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
2996 IgnoreUnrecognizedVMOptions = false; | |
2997 } | |
1150 | 2998 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
2999 CommandLineFlags::printFlags(); | |
3000 vm_exit(0); | |
3001 } | |
1768
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3002 |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3003 #ifndef PRODUCT |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3004 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3005 CommandLineFlags::printFlags(true); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3006 vm_exit(0); |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3007 } |
6ee479178066
6979444: add command line option to print command line flags descriptions
ikrylov
parents:
1745
diff
changeset
|
3008 #endif |
564 | 3009 } |
3010 | |
3011 if (IgnoreUnrecognizedVMOptions) { | |
3012 // uncast const to modify the flag args->ignoreUnrecognized | |
3013 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3014 } | |
3015 | |
3016 // Parse specified settings file | |
3017 if (settings_file_specified) { | |
3018 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3019 return JNI_EINVAL; | |
3020 } | |
0 | 3021 } |
3022 | |
3023 // Parse default .hotspotrc settings file | |
3024 if (!settings_file_specified) { | |
3025 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { | |
3026 return JNI_EINVAL; | |
3027 } | |
3028 } | |
3029 | |
3030 if (PrintVMOptions) { | |
3031 for (index = 0; index < args->nOptions; index++) { | |
3032 const JavaVMOption *option = args->options + index; | |
3033 if (match_option(option, "-XX:", &tail)) { | |
3034 logOption(tail); | |
3035 } | |
3036 } | |
3037 } | |
3038 | |
3039 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3040 jint result = parse_vm_init_args(args); | |
3041 if (result != JNI_OK) { | |
3042 return result; | |
3043 } | |
3044 | |
3045 #ifndef PRODUCT | |
3046 if (TraceBytecodesAt != 0) { | |
3047 TraceBytecodes = true; | |
3048 } | |
3049 if (CountCompiledCalls) { | |
3050 if (UseCounterDecay) { | |
3051 warning("UseCounterDecay disabled because CountCalls is set"); | |
3052 UseCounterDecay = false; | |
3053 } | |
3054 } | |
3055 #endif // PRODUCT | |
3056 | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3057 // Transitional |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3058 if (EnableMethodHandles || AnonymousClasses) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3059 if (!EnableInvokeDynamic && !FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3060 warning("EnableMethodHandles and AnonymousClasses are obsolete. Keeping EnableInvokeDynamic disabled."); |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3061 } else { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3062 EnableInvokeDynamic = true; |
726
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3063 } |
be93aad57795
6655646: dynamic languages need dynamically linked call sites
jrose
parents:
712
diff
changeset
|
3064 } |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3065 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3066 // 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
|
3067 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3068 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3069 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3070 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
|
3071 } |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3072 EnableInvokeDynamic = false; |
710 | 3073 } |
3074 } | |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3075 |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3076 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3077 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3078 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
|
3079 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3080 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3081 } |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3082 if (!JavaObjectsInPerm && ScavengeRootsInCode == 0) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3083 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3084 warning("forcing ScavengeRootsInCode non-zero because JavaObjectsInPerm is false"); |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3085 } |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3086 ScavengeRootsInCode = 1; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3087 } |
710 | 3088 |
0 | 3089 if (PrintGCDetails) { |
3090 // Turn on -verbose:gc options as well | |
3091 PrintGC = true; | |
3092 } | |
3093 | |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3094 // 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
|
3095 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
|
3096 |
0 | 3097 #ifdef SERIALGC |
1064 | 3098 force_serial_gc(); |
0 | 3099 #endif // SERIALGC |
3100 #ifdef KERNEL | |
3101 no_shared_spaces(); | |
3102 #endif // KERNEL | |
3103 | |
3104 // Set flags based on ergonomics. | |
3105 set_ergonomics_flags(); | |
3106 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3107 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3108 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3109 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3110 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3111 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3112 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3113 |
1783 | 3114 if (TieredCompilation) { |
3115 set_tiered_flags(); | |
3116 } else { | |
3117 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
3118 if (CompilationPolicyChoice >= 2) { | |
3119 vm_exit_during_initialization( | |
3120 "Incompatible compilation policy selected", NULL); | |
3121 } | |
3122 } | |
3123 | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3124 #ifndef KERNEL |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3125 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3126 set_heap_size(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3127 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3128 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3129 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3130 } 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
|
3131 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3132 } else if (UseParNewGC) { // skipped if CMS is set above |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3133 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3134 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3135 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3136 } |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3137 #endif // KERNEL |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3138 |
0 | 3139 #ifdef SERIALGC |
3140 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
3141 #endif // SERIALGC | |
3142 | |
3143 // Set bytecode rewriting flags | |
3144 set_bytecode_flags(); | |
3145 | |
3146 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3147 set_aggressive_opts_flags(); | |
3148 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3149 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3150 // which are subtlely different from each other but neither works with |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3151 // biased locking. |
2331 | 3152 if (UseHeavyMonitors |
3153 #ifdef COMPILER1 | |
3154 || !UseFastLocking | |
3155 #endif // COMPILER1 | |
3156 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3157 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3158 // 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
|
3159 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3160 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3161 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3162 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3163 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3164 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3165 |
0 | 3166 #ifdef CC_INTERP |
1131 | 3167 // Clear flags not supported by the C++ interpreter |
3168 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3169 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3170 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
3171 #endif // CC_INTERP | |
3172 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3173 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3174 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3175 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3176 } |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3177 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3178 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3179 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3180 warning("PrintAssembly is enabled; turning on DebugNonSafepoints to gain additional output"); |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3181 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3182 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3183 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3184 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3185 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3186 // Force NmethodSweeper to sweep whole CodeCache each time. |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3187 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3188 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3189 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3190 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3191 #endif |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3192 |
0 | 3193 if (PrintCommandLineFlags) { |
3194 CommandLineFlags::printSetFlags(); | |
3195 } | |
3196 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3197 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3198 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3199 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3200 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3201 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3202 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3203 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3204 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3205 // set PauseAtExit if the gamma launcher was used and a debugger is attached |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
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3206 // but only if not already set on the commandline |
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3207 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
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3208 bool set = false; |
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3209 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
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3210 if (!set) { |
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3211 FLAG_SET_DEFAULT(PauseAtExit, true); |
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3212 } |
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3213 } |
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3214 |
0 | 3215 return JNI_OK; |
3216 } | |
3217 | |
3218 int Arguments::PropertyList_count(SystemProperty* pl) { | |
3219 int count = 0; | |
3220 while(pl != NULL) { | |
3221 count++; | |
3222 pl = pl->next(); | |
3223 } | |
3224 return count; | |
3225 } | |
3226 | |
3227 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3228 assert(key != NULL, "just checking"); | |
3229 SystemProperty* prop; | |
3230 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3231 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3232 } | |
3233 return NULL; | |
3234 } | |
3235 | |
3236 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3237 int count = 0; | |
3238 const char* ret_val = NULL; | |
3239 | |
3240 while(pl != NULL) { | |
3241 if(count >= index) { | |
3242 ret_val = pl->key(); | |
3243 break; | |
3244 } | |
3245 count++; | |
3246 pl = pl->next(); | |
3247 } | |
3248 | |
3249 return ret_val; | |
3250 } | |
3251 | |
3252 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3253 int count = 0; | |
3254 char* ret_val = NULL; | |
3255 | |
3256 while(pl != NULL) { | |
3257 if(count >= index) { | |
3258 ret_val = pl->value(); | |
3259 break; | |
3260 } | |
3261 count++; | |
3262 pl = pl->next(); | |
3263 } | |
3264 | |
3265 return ret_val; | |
3266 } | |
3267 | |
3268 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3269 SystemProperty* p = *plist; | |
3270 if (p == NULL) { | |
3271 *plist = new_p; | |
3272 } else { | |
3273 while (p->next() != NULL) { | |
3274 p = p->next(); | |
3275 } | |
3276 p->set_next(new_p); | |
3277 } | |
3278 } | |
3279 | |
3280 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3281 if (plist == NULL) | |
3282 return; | |
3283 | |
3284 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3285 PropertyList_add(plist, new_p); | |
3286 } | |
3287 | |
3288 // This add maintains unique property key in the list. | |
691 | 3289 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3290 if (plist == NULL) |
3291 return; | |
3292 | |
3293 // If property key exist then update with new value. | |
3294 SystemProperty* prop; | |
3295 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3296 if (strcmp(k, prop->key()) == 0) { | |
691 | 3297 if (append) { |
3298 prop->append_value(v); | |
3299 } else { | |
3300 prop->set_value(v); | |
3301 } | |
0 | 3302 return; |
3303 } | |
3304 } | |
3305 | |
3306 PropertyList_add(plist, k, v); | |
3307 } | |
3308 | |
3309 #ifdef KERNEL | |
3310 char *Arguments::get_kernel_properties() { | |
3311 // Find properties starting with kernel and append them to string | |
3312 // We need to find out how long they are first because the URL's that they | |
3313 // might point to could get long. | |
3314 int length = 0; | |
3315 SystemProperty* prop; | |
3316 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
3317 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
3318 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
3319 } | |
3320 } | |
3321 // Add one for null terminator. | |
3322 char *props = AllocateHeap(length + 1, "get_kernel_properties"); | |
3323 if (length != 0) { | |
3324 int pos = 0; | |
3325 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
3326 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
3327 jio_snprintf(&props[pos], length-pos, | |
3328 "-D%s=%s ", prop->key(), prop->value()); | |
3329 pos = strlen(props); | |
3330 } | |
3331 } | |
3332 } | |
3333 // null terminate props in case of null | |
3334 props[length] = '\0'; | |
3335 return props; | |
3336 } | |
3337 #endif // KERNEL | |
3338 | |
3339 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3340 // Returns true if all of the source pointed by src has been copied over to | |
3341 // the destination buffer pointed by buf. Otherwise, returns false. | |
3342 // Notes: | |
3343 // 1. If the length (buflen) of the destination buffer excluding the | |
3344 // NULL terminator character is not long enough for holding the expanded | |
3345 // pid characters, it also returns false instead of returning the partially | |
3346 // expanded one. | |
3347 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3348 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3349 char* buf, size_t buflen) { | |
3350 const char* p = src; | |
3351 char* b = buf; | |
3352 const char* src_end = &src[srclen]; | |
3353 char* buf_end = &buf[buflen - 1]; | |
3354 | |
3355 while (p < src_end && b < buf_end) { | |
3356 if (*p == '%') { | |
3357 switch (*(++p)) { | |
3358 case '%': // "%%" ==> "%" | |
3359 *b++ = *p++; | |
3360 break; | |
3361 case 'p': { // "%p" ==> current process id | |
3362 // buf_end points to the character before the last character so | |
3363 // that we could write '\0' to the end of the buffer. | |
3364 size_t buf_sz = buf_end - b + 1; | |
3365 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3366 | |
3367 // if jio_snprintf fails or the buffer is not long enough to hold | |
3368 // the expanded pid, returns false. | |
3369 if (ret < 0 || ret >= (int)buf_sz) { | |
3370 return false; | |
3371 } else { | |
3372 b += ret; | |
3373 assert(*b == '\0', "fail in copy_expand_pid"); | |
3374 if (p == src_end && b == buf_end + 1) { | |
3375 // reach the end of the buffer. | |
3376 return true; | |
3377 } | |
3378 } | |
3379 p++; | |
3380 break; | |
3381 } | |
3382 default : | |
3383 *b++ = '%'; | |
3384 } | |
3385 } else { | |
3386 *b++ = *p++; | |
3387 } | |
3388 } | |
3389 *b = '\0'; | |
3390 return (p == src_end); // return false if not all of the source was copied | |
3391 } |