Mercurial > hg > graal-compiler
annotate src/share/vm/runtime/arguments.cpp @ 6496:16d1411409b4
moved AMD64 specific code into com.oracle.graal.compiler.amd64
author | Doug Simon <doug.simon@oracle.com> |
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date | Wed, 03 Oct 2012 16:49:51 +0200 |
parents | 75f130f2b30f |
children | 64b7dd2075c0 |
rev | line source |
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0 | 1 /* |
4838 | 2 * Copyright (c) 1997, 2012, 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" | |
6197 | 38 #include "services/memTracker.hpp" |
1972 | 39 #include "utilities/defaultStream.hpp" |
40 #include "utilities/taskqueue.hpp" | |
41 #ifdef TARGET_OS_FAMILY_linux | |
42 # include "os_linux.inline.hpp" | |
43 #endif | |
44 #ifdef TARGET_OS_FAMILY_solaris | |
45 # include "os_solaris.inline.hpp" | |
46 #endif | |
47 #ifdef TARGET_OS_FAMILY_windows | |
48 # include "os_windows.inline.hpp" | |
49 #endif | |
3960 | 50 #ifdef TARGET_OS_FAMILY_bsd |
51 # include "os_bsd.inline.hpp" | |
52 #endif | |
1972 | 53 #ifndef SERIALGC |
54 #include "gc_implementation/concurrentMarkSweep/compactibleFreeListSpace.hpp" | |
55 #endif | |
0 | 56 |
2474 | 57 // Note: This is a special bug reporting site for the JVM |
58 #define DEFAULT_VENDOR_URL_BUG "http://bugreport.sun.com/bugreport/crash.jsp" | |
0 | 59 #define DEFAULT_JAVA_LAUNCHER "generic" |
60 | |
61 char** Arguments::_jvm_flags_array = NULL; | |
62 int Arguments::_num_jvm_flags = 0; | |
63 char** Arguments::_jvm_args_array = NULL; | |
64 int Arguments::_num_jvm_args = 0; | |
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65 #ifdef GRAAL |
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66 char** Arguments::_graal_args_array = NULL; |
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67 int Arguments::_num_graal_args = 0; |
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68 #endif |
0 | 69 char* Arguments::_java_command = NULL; |
70 SystemProperty* Arguments::_system_properties = NULL; | |
71 const char* Arguments::_gc_log_filename = NULL; | |
72 bool Arguments::_has_profile = false; | |
73 bool Arguments::_has_alloc_profile = false; | |
74 uintx Arguments::_min_heap_size = 0; | |
75 Arguments::Mode Arguments::_mode = _mixed; | |
76 bool Arguments::_java_compiler = false; | |
77 bool Arguments::_xdebug_mode = false; | |
78 const char* Arguments::_java_vendor_url_bug = DEFAULT_VENDOR_URL_BUG; | |
79 const char* Arguments::_sun_java_launcher = DEFAULT_JAVA_LAUNCHER; | |
80 int Arguments::_sun_java_launcher_pid = -1; | |
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81 bool Arguments::_created_by_gamma_launcher = false; |
0 | 82 |
83 // These parameters are reset in method parse_vm_init_args(JavaVMInitArgs*) | |
84 bool Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
85 bool Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
86 bool Arguments::_BackgroundCompilation = BackgroundCompilation; | |
87 bool Arguments::_ClipInlining = ClipInlining; | |
88 | |
89 char* Arguments::SharedArchivePath = NULL; | |
90 | |
91 AgentLibraryList Arguments::_libraryList; | |
92 AgentLibraryList Arguments::_agentList; | |
93 | |
94 abort_hook_t Arguments::_abort_hook = NULL; | |
95 exit_hook_t Arguments::_exit_hook = NULL; | |
96 vfprintf_hook_t Arguments::_vfprintf_hook = NULL; | |
97 | |
98 | |
99 SystemProperty *Arguments::_java_ext_dirs = NULL; | |
100 SystemProperty *Arguments::_java_endorsed_dirs = NULL; | |
101 SystemProperty *Arguments::_sun_boot_library_path = NULL; | |
102 SystemProperty *Arguments::_java_library_path = NULL; | |
103 SystemProperty *Arguments::_java_home = NULL; | |
104 SystemProperty *Arguments::_java_class_path = NULL; | |
105 SystemProperty *Arguments::_sun_boot_class_path = NULL; | |
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106 #ifdef GRAAL |
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107 SystemProperty *Arguments::_compiler_class_path = NULL; |
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108 #endif |
0 | 109 |
110 char* Arguments::_meta_index_path = NULL; | |
111 char* Arguments::_meta_index_dir = NULL; | |
112 | |
113 // Check if head of 'option' matches 'name', and sets 'tail' remaining part of option string | |
114 | |
115 static bool match_option(const JavaVMOption *option, const char* name, | |
116 const char** tail) { | |
117 int len = (int)strlen(name); | |
118 if (strncmp(option->optionString, name, len) == 0) { | |
119 *tail = option->optionString + len; | |
120 return true; | |
121 } else { | |
122 return false; | |
123 } | |
124 } | |
125 | |
126 static void logOption(const char* opt) { | |
127 if (PrintVMOptions) { | |
128 jio_fprintf(defaultStream::output_stream(), "VM option '%s'\n", opt); | |
129 } | |
130 } | |
131 | |
132 // Process java launcher properties. | |
133 void Arguments::process_sun_java_launcher_properties(JavaVMInitArgs* args) { | |
134 // See if sun.java.launcher or sun.java.launcher.pid is defined. | |
135 // Must do this before setting up other system properties, | |
136 // as some of them may depend on launcher type. | |
137 for (int index = 0; index < args->nOptions; index++) { | |
138 const JavaVMOption* option = args->options + index; | |
139 const char* tail; | |
140 | |
141 if (match_option(option, "-Dsun.java.launcher=", &tail)) { | |
142 process_java_launcher_argument(tail, option->extraInfo); | |
143 continue; | |
144 } | |
145 if (match_option(option, "-Dsun.java.launcher.pid=", &tail)) { | |
146 _sun_java_launcher_pid = atoi(tail); | |
147 continue; | |
148 } | |
149 } | |
150 } | |
151 | |
152 // Initialize system properties key and value. | |
153 void Arguments::init_system_properties() { | |
154 | |
155 PropertyList_add(&_system_properties, new SystemProperty("java.vm.specification.name", | |
156 "Java Virtual Machine Specification", false)); | |
157 PropertyList_add(&_system_properties, new SystemProperty("java.vm.version", VM_Version::vm_release(), false)); | |
158 PropertyList_add(&_system_properties, new SystemProperty("java.vm.name", VM_Version::vm_name(), false)); | |
159 PropertyList_add(&_system_properties, new SystemProperty("java.vm.info", VM_Version::vm_info_string(), true)); | |
160 | |
161 // following are JVMTI agent writeable properties. | |
162 // Properties values are set to NULL and they are | |
163 // os specific they are initialized in os::init_system_properties_values(). | |
164 _java_ext_dirs = new SystemProperty("java.ext.dirs", NULL, true); | |
165 _java_endorsed_dirs = new SystemProperty("java.endorsed.dirs", NULL, true); | |
166 _sun_boot_library_path = new SystemProperty("sun.boot.library.path", NULL, true); | |
167 _java_library_path = new SystemProperty("java.library.path", NULL, true); | |
168 _java_home = new SystemProperty("java.home", NULL, true); | |
169 _sun_boot_class_path = new SystemProperty("sun.boot.class.path", NULL, true); | |
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170 #ifdef GRAAL |
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171 _compiler_class_path = new SystemProperty("compiler.class.path", NULL, true); |
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172 #endif |
0 | 173 |
174 _java_class_path = new SystemProperty("java.class.path", "", true); | |
175 | |
176 // Add to System Property list. | |
177 PropertyList_add(&_system_properties, _java_ext_dirs); | |
178 PropertyList_add(&_system_properties, _java_endorsed_dirs); | |
179 PropertyList_add(&_system_properties, _sun_boot_library_path); | |
180 PropertyList_add(&_system_properties, _java_library_path); | |
181 PropertyList_add(&_system_properties, _java_home); | |
182 PropertyList_add(&_system_properties, _java_class_path); | |
183 PropertyList_add(&_system_properties, _sun_boot_class_path); | |
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184 #ifdef GRAAL |
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185 PropertyList_add(&_system_properties, _compiler_class_path); |
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186 #endif |
0 | 187 |
188 // Set OS specific system properties values | |
189 os::init_system_properties_values(); | |
190 } | |
191 | |
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192 |
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193 // Update/Initialize System properties after JDK version number is known |
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194 void Arguments::init_version_specific_system_properties() { |
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195 enum { bufsz = 16 }; |
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196 char buffer[bufsz]; |
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197 const char* spec_vendor = "Sun Microsystems Inc."; |
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198 uint32_t spec_version = 0; |
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199 |
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200 if (JDK_Version::is_gte_jdk17x_version()) { |
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201 spec_vendor = "Oracle Corporation"; |
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202 spec_version = JDK_Version::current().major_version(); |
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203 } |
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204 jio_snprintf(buffer, bufsz, "1." UINT32_FORMAT, spec_version); |
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205 |
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206 PropertyList_add(&_system_properties, |
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207 new SystemProperty("java.vm.specification.vendor", spec_vendor, false)); |
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208 PropertyList_add(&_system_properties, |
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209 new SystemProperty("java.vm.specification.version", buffer, false)); |
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210 PropertyList_add(&_system_properties, |
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211 new SystemProperty("java.vm.vendor", VM_Version::vm_vendor(), false)); |
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212 } |
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213 |
242 | 214 /** |
215 * Provide a slightly more user-friendly way of eliminating -XX flags. | |
216 * When a flag is eliminated, it can be added to this list in order to | |
217 * continue accepting this flag on the command-line, while issuing a warning | |
218 * and ignoring the value. Once the JDK version reaches the 'accept_until' | |
219 * limit, we flatly refuse to admit the existence of the flag. This allows | |
220 * a flag to die correctly over JDK releases using HSX. | |
221 */ | |
222 typedef struct { | |
223 const char* name; | |
224 JDK_Version obsoleted_in; // when the flag went away | |
225 JDK_Version accept_until; // which version to start denying the existence | |
226 } ObsoleteFlag; | |
0 | 227 |
242 | 228 static ObsoleteFlag obsolete_jvm_flags[] = { |
229 { "UseTrainGC", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
230 { "UseSpecialLargeObjectHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
231 { "UseOversizedCarHandling", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
232 { "TraceCarAllocation", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
233 { "PrintTrainGCProcessingStats", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
234 { "LogOfCarSpaceSize", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
235 { "OversizedCarThreshold", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
236 { "MinTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
237 { "DefaultTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
238 { "MaxTickInterval", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
239 { "DelayTickAdjustment", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
240 { "ProcessingToTenuringRatio", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
241 { "MinTrainLength", JDK_Version::jdk(5), JDK_Version::jdk(7) }, | |
242 { "AppendRatio", JDK_Version::jdk_update(6,10), JDK_Version::jdk(7) }, | |
1064 | 243 { "DefaultMaxRAM", JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, |
244 { "DefaultInitialRAMFraction", | |
245 JDK_Version::jdk_update(6,18), JDK_Version::jdk(7) }, | |
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246 { "UseDepthFirstScavengeOrder", |
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247 JDK_Version::jdk_update(6,22), JDK_Version::jdk(7) }, |
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248 { "HandlePromotionFailure", |
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249 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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250 { "MaxLiveObjectEvacuationRatio", |
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251 JDK_Version::jdk_update(6,24), JDK_Version::jdk(8) }, |
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252 { "ForceSharedSpaces", JDK_Version::jdk_update(6,25), JDK_Version::jdk(8) }, |
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253 { "UseParallelOldGCCompacting", |
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254 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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255 { "UseParallelDensePrefixUpdate", |
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256 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
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257 { "UseParallelOldGCDensePrefix", |
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258 JDK_Version::jdk_update(6,27), JDK_Version::jdk(8) }, |
2460 | 259 { "AllowTransitionalJSR292", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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260 { "UseCompressedStrings", JDK_Version::jdk(7), JDK_Version::jdk(8) }, |
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261 #ifdef PRODUCT |
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262 { "DesiredMethodLimit", |
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263 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) }, |
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264 #endif // PRODUCT |
242 | 265 { NULL, JDK_Version(0), JDK_Version(0) } |
266 }; | |
267 | |
268 // Returns true if the flag is obsolete and fits into the range specified | |
269 // for being ignored. In the case that the flag is ignored, the 'version' | |
270 // value is filled in with the version number when the flag became | |
271 // obsolete so that that value can be displayed to the user. | |
272 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) { | |
0 | 273 int i = 0; |
242 | 274 assert(version != NULL, "Must provide a version buffer"); |
275 while (obsolete_jvm_flags[i].name != NULL) { | |
276 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i]; | |
0 | 277 // <flag>=xxx form |
278 // [-|+]<flag> form | |
242 | 279 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) || |
0 | 280 ((s[0] == '+' || s[0] == '-') && |
242 | 281 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) { |
282 if (JDK_Version::current().compare(flag_status.accept_until) == -1) { | |
283 *version = flag_status.obsoleted_in; | |
284 return true; | |
285 } | |
0 | 286 } |
287 i++; | |
288 } | |
289 return false; | |
290 } | |
291 | |
292 // Constructs the system class path (aka boot class path) from the following | |
293 // components, in order: | |
294 // | |
295 // prefix // from -Xbootclasspath/p:... | |
296 // endorsed // the expansion of -Djava.endorsed.dirs=... | |
297 // base // from os::get_system_properties() or -Xbootclasspath= | |
298 // suffix // from -Xbootclasspath/a:... | |
299 // | |
300 // java.endorsed.dirs is a list of directories; any jar or zip files in the | |
301 // directories are added to the sysclasspath just before the base. | |
302 // | |
303 // This could be AllStatic, but it isn't needed after argument processing is | |
304 // complete. | |
305 class SysClassPath: public StackObj { | |
306 public: | |
307 SysClassPath(const char* base); | |
308 ~SysClassPath(); | |
309 | |
310 inline void set_base(const char* base); | |
311 inline void add_prefix(const char* prefix); | |
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312 inline void add_suffix_to_prefix(const char* suffix); |
0 | 313 inline void add_suffix(const char* suffix); |
314 inline void reset_path(const char* base); | |
315 | |
316 // Expand the jar/zip files in each directory listed by the java.endorsed.dirs | |
317 // property. Must be called after all command-line arguments have been | |
318 // processed (in particular, -Djava.endorsed.dirs=...) and before calling | |
319 // combined_path(). | |
320 void expand_endorsed(); | |
321 | |
322 inline const char* get_base() const { return _items[_scp_base]; } | |
323 inline const char* get_prefix() const { return _items[_scp_prefix]; } | |
324 inline const char* get_suffix() const { return _items[_scp_suffix]; } | |
325 inline const char* get_endorsed() const { return _items[_scp_endorsed]; } | |
326 | |
327 // Combine all the components into a single c-heap-allocated string; caller | |
328 // must free the string if/when no longer needed. | |
329 char* combined_path(); | |
330 | |
331 private: | |
332 // Utility routines. | |
333 static char* add_to_path(const char* path, const char* str, bool prepend); | |
334 static char* add_jars_to_path(char* path, const char* directory); | |
335 | |
336 inline void reset_item_at(int index); | |
337 | |
338 // Array indices for the items that make up the sysclasspath. All except the | |
339 // base are allocated in the C heap and freed by this class. | |
340 enum { | |
341 _scp_prefix, // from -Xbootclasspath/p:... | |
342 _scp_endorsed, // the expansion of -Djava.endorsed.dirs=... | |
343 _scp_base, // the default sysclasspath | |
344 _scp_suffix, // from -Xbootclasspath/a:... | |
345 _scp_nitems // the number of items, must be last. | |
346 }; | |
347 | |
348 const char* _items[_scp_nitems]; | |
349 DEBUG_ONLY(bool _expansion_done;) | |
350 }; | |
351 | |
352 SysClassPath::SysClassPath(const char* base) { | |
353 memset(_items, 0, sizeof(_items)); | |
354 _items[_scp_base] = base; | |
355 DEBUG_ONLY(_expansion_done = false;) | |
356 } | |
357 | |
358 SysClassPath::~SysClassPath() { | |
359 // Free everything except the base. | |
360 for (int i = 0; i < _scp_nitems; ++i) { | |
361 if (i != _scp_base) reset_item_at(i); | |
362 } | |
363 DEBUG_ONLY(_expansion_done = false;) | |
364 } | |
365 | |
366 inline void SysClassPath::set_base(const char* base) { | |
367 _items[_scp_base] = base; | |
368 } | |
369 | |
370 inline void SysClassPath::add_prefix(const char* prefix) { | |
371 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], prefix, true); | |
372 } | |
373 | |
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374 inline void SysClassPath::add_suffix_to_prefix(const char* suffix) { |
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375 _items[_scp_prefix] = add_to_path(_items[_scp_prefix], suffix, false); |
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376 } |
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377 |
0 | 378 inline void SysClassPath::add_suffix(const char* suffix) { |
379 _items[_scp_suffix] = add_to_path(_items[_scp_suffix], suffix, false); | |
380 } | |
381 | |
382 inline void SysClassPath::reset_item_at(int index) { | |
383 assert(index < _scp_nitems && index != _scp_base, "just checking"); | |
384 if (_items[index] != NULL) { | |
6197 | 385 FREE_C_HEAP_ARRAY(char, _items[index], mtInternal); |
0 | 386 _items[index] = NULL; |
387 } | |
388 } | |
389 | |
390 inline void SysClassPath::reset_path(const char* base) { | |
391 // Clear the prefix and suffix. | |
392 reset_item_at(_scp_prefix); | |
393 reset_item_at(_scp_suffix); | |
394 set_base(base); | |
395 } | |
396 | |
397 //------------------------------------------------------------------------------ | |
398 | |
399 void SysClassPath::expand_endorsed() { | |
400 assert(_items[_scp_endorsed] == NULL, "can only be called once."); | |
401 | |
402 const char* path = Arguments::get_property("java.endorsed.dirs"); | |
403 if (path == NULL) { | |
404 path = Arguments::get_endorsed_dir(); | |
405 assert(path != NULL, "no default for java.endorsed.dirs"); | |
406 } | |
407 | |
408 char* expanded_path = NULL; | |
409 const char separator = *os::path_separator(); | |
410 const char* const end = path + strlen(path); | |
411 while (path < end) { | |
412 const char* tmp_end = strchr(path, separator); | |
413 if (tmp_end == NULL) { | |
414 expanded_path = add_jars_to_path(expanded_path, path); | |
415 path = end; | |
416 } else { | |
6197 | 417 char* dirpath = NEW_C_HEAP_ARRAY(char, tmp_end - path + 1, mtInternal); |
0 | 418 memcpy(dirpath, path, tmp_end - path); |
419 dirpath[tmp_end - path] = '\0'; | |
420 expanded_path = add_jars_to_path(expanded_path, dirpath); | |
6197 | 421 FREE_C_HEAP_ARRAY(char, dirpath, mtInternal); |
0 | 422 path = tmp_end + 1; |
423 } | |
424 } | |
425 _items[_scp_endorsed] = expanded_path; | |
426 DEBUG_ONLY(_expansion_done = true;) | |
427 } | |
428 | |
429 // Combine the bootclasspath elements, some of which may be null, into a single | |
430 // c-heap-allocated string. | |
431 char* SysClassPath::combined_path() { | |
432 assert(_items[_scp_base] != NULL, "empty default sysclasspath"); | |
433 assert(_expansion_done, "must call expand_endorsed() first."); | |
434 | |
435 size_t lengths[_scp_nitems]; | |
436 size_t total_len = 0; | |
437 | |
438 const char separator = *os::path_separator(); | |
439 | |
440 // Get the lengths. | |
441 int i; | |
442 for (i = 0; i < _scp_nitems; ++i) { | |
443 if (_items[i] != NULL) { | |
444 lengths[i] = strlen(_items[i]); | |
445 // Include space for the separator char (or a NULL for the last item). | |
446 total_len += lengths[i] + 1; | |
447 } | |
448 } | |
449 assert(total_len > 0, "empty sysclasspath not allowed"); | |
450 | |
451 // Copy the _items to a single string. | |
6197 | 452 char* cp = NEW_C_HEAP_ARRAY(char, total_len, mtInternal); |
0 | 453 char* cp_tmp = cp; |
454 for (i = 0; i < _scp_nitems; ++i) { | |
455 if (_items[i] != NULL) { | |
456 memcpy(cp_tmp, _items[i], lengths[i]); | |
457 cp_tmp += lengths[i]; | |
458 *cp_tmp++ = separator; | |
459 } | |
460 } | |
461 *--cp_tmp = '\0'; // Replace the extra separator. | |
462 return cp; | |
463 } | |
464 | |
465 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
466 char* | |
467 SysClassPath::add_to_path(const char* path, const char* str, bool prepend) { | |
468 char *cp; | |
469 | |
470 assert(str != NULL, "just checking"); | |
471 if (path == NULL) { | |
472 size_t len = strlen(str) + 1; | |
6197 | 473 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 474 memcpy(cp, str, len); // copy the trailing null |
475 } else { | |
476 const char separator = *os::path_separator(); | |
477 size_t old_len = strlen(path); | |
478 size_t str_len = strlen(str); | |
479 size_t len = old_len + str_len + 2; | |
480 | |
481 if (prepend) { | |
6197 | 482 cp = NEW_C_HEAP_ARRAY(char, len, mtInternal); |
0 | 483 char* cp_tmp = cp; |
484 memcpy(cp_tmp, str, str_len); | |
485 cp_tmp += str_len; | |
486 *cp_tmp = separator; | |
487 memcpy(++cp_tmp, path, old_len + 1); // copy the trailing null | |
6197 | 488 FREE_C_HEAP_ARRAY(char, path, mtInternal); |
0 | 489 } else { |
6197 | 490 cp = REALLOC_C_HEAP_ARRAY(char, path, len, mtInternal); |
0 | 491 char* cp_tmp = cp + old_len; |
492 *cp_tmp = separator; | |
493 memcpy(++cp_tmp, str, str_len + 1); // copy the trailing null | |
494 } | |
495 } | |
496 return cp; | |
497 } | |
498 | |
499 // Scan the directory and append any jar or zip files found to path. | |
500 // Note: path must be c-heap-allocated (or NULL); it is freed if non-null. | |
501 char* SysClassPath::add_jars_to_path(char* path, const char* directory) { | |
502 DIR* dir = os::opendir(directory); | |
503 if (dir == NULL) return path; | |
504 | |
505 char dir_sep[2] = { '\0', '\0' }; | |
506 size_t directory_len = strlen(directory); | |
507 const char fileSep = *os::file_separator(); | |
508 if (directory[directory_len - 1] != fileSep) dir_sep[0] = fileSep; | |
509 | |
510 /* Scan the directory for jars/zips, appending them to path. */ | |
511 struct dirent *entry; | |
6197 | 512 char *dbuf = NEW_C_HEAP_ARRAY(char, os::readdir_buf_size(directory), mtInternal); |
0 | 513 while ((entry = os::readdir(dir, (dirent *) dbuf)) != NULL) { |
514 const char* name = entry->d_name; | |
515 const char* ext = name + strlen(name) - 4; | |
516 bool isJarOrZip = ext > name && | |
517 (os::file_name_strcmp(ext, ".jar") == 0 || | |
518 os::file_name_strcmp(ext, ".zip") == 0); | |
519 if (isJarOrZip) { | |
6197 | 520 char* jarpath = NEW_C_HEAP_ARRAY(char, directory_len + 2 + strlen(name), mtInternal); |
0 | 521 sprintf(jarpath, "%s%s%s", directory, dir_sep, name); |
522 path = add_to_path(path, jarpath, false); | |
6197 | 523 FREE_C_HEAP_ARRAY(char, jarpath, mtInternal); |
0 | 524 } |
525 } | |
6197 | 526 FREE_C_HEAP_ARRAY(char, dbuf, mtInternal); |
0 | 527 os::closedir(dir); |
528 return path; | |
529 } | |
530 | |
531 // Parses a memory size specification string. | |
489
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532 static bool atomull(const char *s, julong* result) { |
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533 julong n = 0; |
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534 int args_read = sscanf(s, os::julong_format_specifier(), &n); |
0 | 535 if (args_read != 1) { |
536 return false; | |
537 } | |
538 while (*s != '\0' && isdigit(*s)) { | |
539 s++; | |
540 } | |
541 // 4705540: illegal if more characters are found after the first non-digit | |
542 if (strlen(s) > 1) { | |
543 return false; | |
544 } | |
545 switch (*s) { | |
546 case 'T': case 't': | |
547 *result = n * G * K; | |
489
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548 // Check for overflow. |
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549 if (*result/((julong)G * K) != n) return false; |
0 | 550 return true; |
551 case 'G': case 'g': | |
552 *result = n * G; | |
489
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553 if (*result/G != n) return false; |
0 | 554 return true; |
555 case 'M': case 'm': | |
556 *result = n * M; | |
489
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557 if (*result/M != n) return false; |
0 | 558 return true; |
559 case 'K': case 'k': | |
560 *result = n * K; | |
489
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561 if (*result/K != n) return false; |
0 | 562 return true; |
563 case '\0': | |
564 *result = n; | |
565 return true; | |
566 default: | |
567 return false; | |
568 } | |
569 } | |
570 | |
489
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571 Arguments::ArgsRange Arguments::check_memory_size(julong size, julong min_size) { |
0 | 572 if (size < min_size) return arg_too_small; |
573 // Check that size will fit in a size_t (only relevant on 32-bit) | |
489
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574 if (size > max_uintx) return arg_too_big; |
0 | 575 return arg_in_range; |
576 } | |
577 | |
578 // Describe an argument out of range error | |
579 void Arguments::describe_range_error(ArgsRange errcode) { | |
580 switch(errcode) { | |
581 case arg_too_big: | |
582 jio_fprintf(defaultStream::error_stream(), | |
583 "The specified size exceeds the maximum " | |
584 "representable size.\n"); | |
585 break; | |
586 case arg_too_small: | |
587 case arg_unreadable: | |
588 case arg_in_range: | |
589 // do nothing for now | |
590 break; | |
591 default: | |
592 ShouldNotReachHere(); | |
593 } | |
594 } | |
595 | |
596 static bool set_bool_flag(char* name, bool value, FlagValueOrigin origin) { | |
597 return CommandLineFlags::boolAtPut(name, &value, origin); | |
598 } | |
599 | |
600 static bool set_fp_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
601 double v; | |
602 if (sscanf(value, "%lf", &v) != 1) { | |
603 return false; | |
604 } | |
605 | |
606 if (CommandLineFlags::doubleAtPut(name, &v, origin)) { | |
607 return true; | |
608 } | |
609 return false; | |
610 } | |
611 | |
612 static bool set_numeric_flag(char* name, char* value, FlagValueOrigin origin) { | |
489
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613 julong v; |
0 | 614 intx intx_v; |
615 bool is_neg = false; | |
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616 // Check the sign first since atomull() parses only unsigned values. |
0 | 617 if (*value == '-') { |
618 if (!CommandLineFlags::intxAt(name, &intx_v)) { | |
619 return false; | |
620 } | |
621 value++; | |
622 is_neg = true; | |
623 } | |
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624 if (!atomull(value, &v)) { |
0 | 625 return false; |
626 } | |
627 intx_v = (intx) v; | |
628 if (is_neg) { | |
629 intx_v = -intx_v; | |
630 } | |
631 if (CommandLineFlags::intxAtPut(name, &intx_v, origin)) { | |
632 return true; | |
633 } | |
634 uintx uintx_v = (uintx) v; | |
635 if (!is_neg && CommandLineFlags::uintxAtPut(name, &uintx_v, origin)) { | |
636 return true; | |
637 } | |
1064 | 638 uint64_t uint64_t_v = (uint64_t) v; |
639 if (!is_neg && CommandLineFlags::uint64_tAtPut(name, &uint64_t_v, origin)) { | |
640 return true; | |
641 } | |
0 | 642 return false; |
643 } | |
644 | |
645 static bool set_string_flag(char* name, const char* value, FlagValueOrigin origin) { | |
646 if (!CommandLineFlags::ccstrAtPut(name, &value, origin)) return false; | |
647 // Contract: CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 648 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 649 return true; |
650 } | |
651 | |
652 static bool append_to_string_flag(char* name, const char* new_value, FlagValueOrigin origin) { | |
653 const char* old_value = ""; | |
654 if (!CommandLineFlags::ccstrAt(name, &old_value)) return false; | |
655 size_t old_len = old_value != NULL ? strlen(old_value) : 0; | |
656 size_t new_len = strlen(new_value); | |
657 const char* value; | |
658 char* free_this_too = NULL; | |
659 if (old_len == 0) { | |
660 value = new_value; | |
661 } else if (new_len == 0) { | |
662 value = old_value; | |
663 } else { | |
6197 | 664 char* buf = NEW_C_HEAP_ARRAY(char, old_len + 1 + new_len + 1, mtInternal); |
0 | 665 // each new setting adds another LINE to the switch: |
666 sprintf(buf, "%s\n%s", old_value, new_value); | |
667 value = buf; | |
668 free_this_too = buf; | |
669 } | |
670 (void) CommandLineFlags::ccstrAtPut(name, &value, origin); | |
671 // CommandLineFlags always returns a pointer that needs freeing. | |
6197 | 672 FREE_C_HEAP_ARRAY(char, value, mtInternal); |
0 | 673 if (free_this_too != NULL) { |
674 // CommandLineFlags made its own copy, so I must delete my own temp. buffer. | |
6197 | 675 FREE_C_HEAP_ARRAY(char, free_this_too, mtInternal); |
0 | 676 } |
677 return true; | |
678 } | |
679 | |
680 bool Arguments::parse_argument(const char* arg, FlagValueOrigin origin) { | |
681 | |
682 // range of acceptable characters spelled out for portability reasons | |
683 #define NAME_RANGE "[abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789_]" | |
684 #define BUFLEN 255 | |
685 char name[BUFLEN+1]; | |
686 char dummy; | |
687 | |
688 if (sscanf(arg, "-%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
689 return set_bool_flag(name, false, origin); | |
690 } | |
691 if (sscanf(arg, "+%" XSTR(BUFLEN) NAME_RANGE "%c", name, &dummy) == 1) { | |
692 return set_bool_flag(name, true, origin); | |
693 } | |
694 | |
695 char punct; | |
696 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "%c", name, &punct) == 2 && punct == '=') { | |
697 const char* value = strchr(arg, '=') + 1; | |
698 Flag* flag = Flag::find_flag(name, strlen(name)); | |
699 if (flag != NULL && flag->is_ccstr()) { | |
700 if (flag->ccstr_accumulates()) { | |
701 return append_to_string_flag(name, value, origin); | |
702 } else { | |
703 if (value[0] == '\0') { | |
704 value = NULL; | |
705 } | |
706 return set_string_flag(name, value, origin); | |
707 } | |
708 } | |
709 } | |
710 | |
711 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE ":%c", name, &punct) == 2 && punct == '=') { | |
712 const char* value = strchr(arg, '=') + 1; | |
713 // -XX:Foo:=xxx will reset the string flag to the given value. | |
714 if (value[0] == '\0') { | |
715 value = NULL; | |
716 } | |
717 return set_string_flag(name, value, origin); | |
718 } | |
719 | |
720 #define SIGNED_FP_NUMBER_RANGE "[-0123456789.]" | |
721 #define SIGNED_NUMBER_RANGE "[-0123456789]" | |
722 #define NUMBER_RANGE "[0123456789]" | |
723 char value[BUFLEN + 1]; | |
724 char value2[BUFLEN + 1]; | |
725 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_NUMBER_RANGE "." "%" XSTR(BUFLEN) NUMBER_RANGE "%c", name, value, value2, &dummy) == 3) { | |
726 // Looks like a floating-point number -- try again with more lenient format string | |
727 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) SIGNED_FP_NUMBER_RANGE "%c", name, value, &dummy) == 2) { | |
728 return set_fp_numeric_flag(name, value, origin); | |
729 } | |
730 } | |
731 | |
732 #define VALUE_RANGE "[-kmgtKMGT0123456789]" | |
733 if (sscanf(arg, "%" XSTR(BUFLEN) NAME_RANGE "=" "%" XSTR(BUFLEN) VALUE_RANGE "%c", name, value, &dummy) == 2) { | |
734 return set_numeric_flag(name, value, origin); | |
735 } | |
736 | |
737 return false; | |
738 } | |
739 | |
740 void Arguments::add_string(char*** bldarray, int* count, const char* arg) { | |
741 assert(bldarray != NULL, "illegal argument"); | |
742 | |
743 if (arg == NULL) { | |
744 return; | |
745 } | |
746 | |
747 int index = *count; | |
748 | |
749 // expand the array and add arg to the last element | |
750 (*count)++; | |
751 if (*bldarray == NULL) { | |
6197 | 752 *bldarray = NEW_C_HEAP_ARRAY(char*, *count, mtInternal); |
0 | 753 } else { |
6197 | 754 *bldarray = REALLOC_C_HEAP_ARRAY(char*, *bldarray, *count, mtInternal); |
0 | 755 } |
756 (*bldarray)[index] = strdup(arg); | |
757 } | |
758 | |
759 void Arguments::build_jvm_args(const char* arg) { | |
760 add_string(&_jvm_args_array, &_num_jvm_args, arg); | |
761 } | |
762 | |
763 void Arguments::build_jvm_flags(const char* arg) { | |
764 add_string(&_jvm_flags_array, &_num_jvm_flags, arg); | |
765 } | |
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766 #ifdef GRAAL |
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767 void Arguments::add_graal_arg(const char* arg) { |
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768 add_string(&_graal_args_array, &_num_graal_args, arg); |
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769 } |
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770 #endif |
0 | 771 |
772 // utility function to return a string that concatenates all | |
773 // strings in a given char** array | |
774 const char* Arguments::build_resource_string(char** args, int count) { | |
775 if (args == NULL || count == 0) { | |
776 return NULL; | |
777 } | |
778 size_t length = strlen(args[0]) + 1; // add 1 for the null terminator | |
779 for (int i = 1; i < count; i++) { | |
780 length += strlen(args[i]) + 1; // add 1 for a space | |
781 } | |
782 char* s = NEW_RESOURCE_ARRAY(char, length); | |
783 strcpy(s, args[0]); | |
784 for (int j = 1; j < count; j++) { | |
785 strcat(s, " "); | |
786 strcat(s, args[j]); | |
787 } | |
788 return (const char*) s; | |
789 } | |
790 | |
791 void Arguments::print_on(outputStream* st) { | |
792 st->print_cr("VM Arguments:"); | |
793 if (num_jvm_flags() > 0) { | |
794 st->print("jvm_flags: "); print_jvm_flags_on(st); | |
795 } | |
796 if (num_jvm_args() > 0) { | |
797 st->print("jvm_args: "); print_jvm_args_on(st); | |
798 } | |
799 st->print_cr("java_command: %s", java_command() ? java_command() : "<unknown>"); | |
800 st->print_cr("Launcher Type: %s", _sun_java_launcher); | |
801 } | |
802 | |
803 void Arguments::print_jvm_flags_on(outputStream* st) { | |
804 if (_num_jvm_flags > 0) { | |
805 for (int i=0; i < _num_jvm_flags; i++) { | |
806 st->print("%s ", _jvm_flags_array[i]); | |
807 } | |
808 st->print_cr(""); | |
809 } | |
810 } | |
811 | |
812 void Arguments::print_jvm_args_on(outputStream* st) { | |
813 if (_num_jvm_args > 0) { | |
814 for (int i=0; i < _num_jvm_args; i++) { | |
815 st->print("%s ", _jvm_args_array[i]); | |
816 } | |
817 st->print_cr(""); | |
818 } | |
819 } | |
820 | |
242 | 821 bool Arguments::process_argument(const char* arg, |
822 jboolean ignore_unrecognized, FlagValueOrigin origin) { | |
823 | |
824 JDK_Version since = JDK_Version(); | |
0 | 825 |
3250 | 826 if (parse_argument(arg, origin) || ignore_unrecognized) { |
827 return true; | |
0 | 828 } |
3250 | 829 |
830 const char * const argname = *arg == '+' || *arg == '-' ? arg + 1 : arg; | |
831 if (is_newly_obsolete(arg, &since)) { | |
832 char version[256]; | |
833 since.to_string(version, sizeof(version)); | |
834 warning("ignoring option %s; support was removed in %s", argname, version); | |
835 return true; | |
836 } | |
837 | |
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838 // For locked flags, report a custom error message if available. |
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839 // Otherwise, report the standard unrecognized VM option. |
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840 |
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841 Flag* locked_flag = Flag::find_flag((char*)argname, strlen(argname), true); |
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842 if (locked_flag != NULL) { |
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843 char locked_message_buf[BUFLEN]; |
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844 locked_flag->get_locked_message(locked_message_buf, BUFLEN); |
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845 if (strlen(locked_message_buf) == 0) { |
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846 jio_fprintf(defaultStream::error_stream(), |
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847 "Unrecognized VM option '%s'\n", argname); |
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848 } else { |
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849 jio_fprintf(defaultStream::error_stream(), "%s", locked_message_buf); |
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850 } |
6017 | 851 } else { |
852 jio_fprintf(defaultStream::error_stream(), | |
853 "Unrecognized VM option '%s'\n", argname); | |
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854 } |
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855 |
3250 | 856 // allow for commandline "commenting out" options like -XX:#+Verbose |
857 return arg[0] == '#'; | |
0 | 858 } |
859 | |
860 bool Arguments::process_settings_file(const char* file_name, bool should_exist, jboolean ignore_unrecognized) { | |
861 FILE* stream = fopen(file_name, "rb"); | |
862 if (stream == NULL) { | |
863 if (should_exist) { | |
864 jio_fprintf(defaultStream::error_stream(), | |
865 "Could not open settings file %s\n", file_name); | |
866 return false; | |
867 } else { | |
868 return true; | |
869 } | |
870 } | |
871 | |
872 char token[1024]; | |
873 int pos = 0; | |
874 | |
875 bool in_white_space = true; | |
876 bool in_comment = false; | |
877 bool in_quote = false; | |
878 char quote_c = 0; | |
879 bool result = true; | |
880 | |
881 int c = getc(stream); | |
882 while(c != EOF) { | |
883 if (in_white_space) { | |
884 if (in_comment) { | |
885 if (c == '\n') in_comment = false; | |
886 } else { | |
887 if (c == '#') in_comment = true; | |
888 else if (!isspace(c)) { | |
889 in_white_space = false; | |
890 token[pos++] = c; | |
891 } | |
892 } | |
893 } else { | |
894 if (c == '\n' || (!in_quote && isspace(c))) { | |
895 // token ends at newline, or at unquoted whitespace | |
896 // this allows a way to include spaces in string-valued options | |
897 token[pos] = '\0'; | |
898 logOption(token); | |
899 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
900 build_jvm_flags(token); | |
901 pos = 0; | |
902 in_white_space = true; | |
903 in_quote = false; | |
904 } else if (!in_quote && (c == '\'' || c == '"')) { | |
905 in_quote = true; | |
906 quote_c = c; | |
907 } else if (in_quote && (c == quote_c)) { | |
908 in_quote = false; | |
909 } else { | |
910 token[pos++] = c; | |
911 } | |
912 } | |
913 c = getc(stream); | |
914 } | |
915 if (pos > 0) { | |
916 token[pos] = '\0'; | |
917 result &= process_argument(token, ignore_unrecognized, CONFIG_FILE); | |
918 build_jvm_flags(token); | |
919 } | |
920 fclose(stream); | |
921 return result; | |
922 } | |
923 | |
924 //============================================================================================================= | |
925 // Parsing of properties (-D) | |
926 | |
927 const char* Arguments::get_property(const char* key) { | |
928 return PropertyList_get_value(system_properties(), key); | |
929 } | |
930 | |
931 bool Arguments::add_property(const char* prop) { | |
932 const char* eq = strchr(prop, '='); | |
933 char* key; | |
934 // ns must be static--its address may be stored in a SystemProperty object. | |
935 const static char ns[1] = {0}; | |
936 char* value = (char *)ns; | |
937 | |
938 size_t key_len = (eq == NULL) ? strlen(prop) : (eq - prop); | |
6197 | 939 key = AllocateHeap(key_len + 1, mtInternal); |
0 | 940 strncpy(key, prop, key_len); |
941 key[key_len] = '\0'; | |
942 | |
943 if (eq != NULL) { | |
944 size_t value_len = strlen(prop) - key_len - 1; | |
6197 | 945 value = AllocateHeap(value_len + 1, mtInternal); |
0 | 946 strncpy(value, &prop[key_len + 1], value_len + 1); |
947 } | |
948 | |
949 if (strcmp(key, "java.compiler") == 0) { | |
950 process_java_compiler_argument(value); | |
951 FreeHeap(key); | |
952 if (eq != NULL) { | |
953 FreeHeap(value); | |
954 } | |
955 return true; | |
691 | 956 } else if (strcmp(key, "sun.java.command") == 0) { |
0 | 957 _java_command = value; |
958 | |
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959 // Record value in Arguments, but let it get passed to Java. |
691 | 960 } else if (strcmp(key, "sun.java.launcher.pid") == 0) { |
0 | 961 // launcher.pid property is private and is processed |
962 // in process_sun_java_launcher_properties(); | |
963 // the sun.java.launcher property is passed on to the java application | |
964 FreeHeap(key); | |
965 if (eq != NULL) { | |
966 FreeHeap(value); | |
967 } | |
968 return true; | |
691 | 969 } else if (strcmp(key, "java.vendor.url.bug") == 0) { |
0 | 970 // save it in _java_vendor_url_bug, so JVM fatal error handler can access |
971 // its value without going through the property list or making a Java call. | |
972 _java_vendor_url_bug = value; | |
691 | 973 } else if (strcmp(key, "sun.boot.library.path") == 0) { |
974 PropertyList_unique_add(&_system_properties, key, value, true); | |
975 return true; | |
0 | 976 } |
977 // Create new property and add at the end of the list | |
978 PropertyList_unique_add(&_system_properties, key, value); | |
979 return true; | |
980 } | |
981 | |
982 //=========================================================================================================== | |
983 // Setting int/mixed/comp mode flags | |
984 | |
985 void Arguments::set_mode_flags(Mode mode) { | |
986 // Set up default values for all flags. | |
987 // If you add a flag to any of the branches below, | |
988 // add a default value for it here. | |
989 set_java_compiler(false); | |
990 _mode = mode; | |
991 | |
992 // Ensure Agent_OnLoad has the correct initial values. | |
993 // This may not be the final mode; mode may change later in onload phase. | |
994 PropertyList_unique_add(&_system_properties, "java.vm.info", | |
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995 (char*)VM_Version::vm_info_string(), false); |
0 | 996 |
997 UseInterpreter = true; | |
998 UseCompiler = true; | |
999 UseLoopCounter = true; | |
1000 | |
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1001 #ifndef ZERO |
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1002 // Turn these off for mixed and comp. Leave them on for Zero. |
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1003 if (FLAG_IS_DEFAULT(UseFastAccessorMethods)) { |
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1004 UseFastAccessorMethods = (mode == _int); |
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1005 } |
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1006 if (FLAG_IS_DEFAULT(UseFastEmptyMethods)) { |
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1007 UseFastEmptyMethods = (mode == _int); |
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1008 } |
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1009 #endif |
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1010 |
0 | 1011 // Default values may be platform/compiler dependent - |
1012 // use the saved values | |
1013 ClipInlining = Arguments::_ClipInlining; | |
1014 AlwaysCompileLoopMethods = Arguments::_AlwaysCompileLoopMethods; | |
1015 UseOnStackReplacement = Arguments::_UseOnStackReplacement; | |
1016 BackgroundCompilation = Arguments::_BackgroundCompilation; | |
1017 | |
1018 // Change from defaults based on mode | |
1019 switch (mode) { | |
1020 default: | |
1021 ShouldNotReachHere(); | |
1022 break; | |
1023 case _int: | |
1024 UseCompiler = false; | |
1025 UseLoopCounter = false; | |
1026 AlwaysCompileLoopMethods = false; | |
1027 UseOnStackReplacement = false; | |
1028 break; | |
1029 case _mixed: | |
1030 // same as default | |
1031 break; | |
1032 case _comp: | |
1033 UseInterpreter = false; | |
1034 BackgroundCompilation = false; | |
1035 ClipInlining = false; | |
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1036 // Be much more aggressive in tiered mode with -Xcomp and exercise C2 more. |
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1037 // We will first compile a level 3 version (C1 with full profiling), then do one invocation of it and |
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1038 // compile a level 4 (C2) and then continue executing it. |
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1039 if (TieredCompilation) { |
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1040 Tier3InvokeNotifyFreqLog = 0; |
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1041 Tier4InvocationThreshold = 0; |
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1042 } |
0 | 1043 break; |
1044 } | |
1045 } | |
1046 | |
1047 // Conflict: required to use shared spaces (-Xshare:on), but | |
1048 // incompatible command line options were chosen. | |
1049 | |
1050 static void no_shared_spaces() { | |
1051 if (RequireSharedSpaces) { | |
1052 jio_fprintf(defaultStream::error_stream(), | |
1053 "Class data sharing is inconsistent with other specified options.\n"); | |
1054 vm_exit_during_initialization("Unable to use shared archive.", NULL); | |
1055 } else { | |
1056 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
1057 } | |
1058 } | |
1059 | |
1783 | 1060 void Arguments::set_tiered_flags() { |
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1061 // With tiered, set default policy to AdvancedThresholdPolicy, which is 3. |
1783 | 1062 if (FLAG_IS_DEFAULT(CompilationPolicyChoice)) { |
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1063 FLAG_SET_DEFAULT(CompilationPolicyChoice, 3); |
1783 | 1064 } |
1065 if (CompilationPolicyChoice < 2) { | |
1066 vm_exit_during_initialization( | |
1067 "Incompatible compilation policy selected", NULL); | |
1068 } | |
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1069 // Increase the code cache size - tiered compiles a lot more. |
1783 | 1070 if (FLAG_IS_DEFAULT(ReservedCodeCacheSize)) { |
1071 FLAG_SET_DEFAULT(ReservedCodeCacheSize, ReservedCodeCacheSize * 2); | |
1072 } | |
1073 } | |
1074 | |
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1075 #ifndef KERNEL |
4838 | 1076 static void disable_adaptive_size_policy(const char* collector_name) { |
1077 if (UseAdaptiveSizePolicy) { | |
1078 if (FLAG_IS_CMDLINE(UseAdaptiveSizePolicy)) { | |
1079 warning("disabling UseAdaptiveSizePolicy; it is incompatible with %s.", | |
1080 collector_name); | |
1081 } | |
1082 FLAG_SET_DEFAULT(UseAdaptiveSizePolicy, false); | |
1083 } | |
1084 } | |
1085 | |
0 | 1086 // If the user has chosen ParallelGCThreads > 0, we set UseParNewGC |
1087 // if it's not explictly set or unset. If the user has chosen | |
1088 // UseParNewGC and not explicitly set ParallelGCThreads we | |
1089 // set it, unless this is a single cpu machine. | |
1090 void Arguments::set_parnew_gc_flags() { | |
1064 | 1091 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC && !UseG1GC, |
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1092 "control point invariant"); |
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1093 assert(UseParNewGC, "Error"); |
0 | 1094 |
4838 | 1095 // Turn off AdaptiveSizePolicy for parnew until it is complete. |
1096 disable_adaptive_size_policy("UseParNewGC"); | |
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1097 |
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1098 if (ParallelGCThreads == 0) { |
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1099 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1100 Abstract_VM_Version::parallel_worker_threads()); |
1064 | 1101 if (ParallelGCThreads == 1) { |
0 | 1102 FLAG_SET_DEFAULT(UseParNewGC, false); |
1064 | 1103 FLAG_SET_DEFAULT(ParallelGCThreads, 0); |
0 | 1104 } |
1105 } | |
1064 | 1106 if (UseParNewGC) { |
1107 // CDS doesn't work with ParNew yet | |
0 | 1108 no_shared_spaces(); |
1109 | |
695 | 1110 // By default YoungPLABSize and OldPLABSize are set to 4096 and 1024 respectively, |
0 | 1111 // these settings are default for Parallel Scavenger. For ParNew+Tenured configuration |
1112 // we set them to 1024 and 1024. | |
1113 // See CR 6362902. | |
1114 if (FLAG_IS_DEFAULT(YoungPLABSize)) { | |
1115 FLAG_SET_DEFAULT(YoungPLABSize, (intx)1024); | |
1116 } | |
1117 if (FLAG_IS_DEFAULT(OldPLABSize)) { | |
1118 FLAG_SET_DEFAULT(OldPLABSize, (intx)1024); | |
1119 } | |
1120 | |
1064 | 1121 // AlwaysTenure flag should make ParNew promote all at first collection. |
0 | 1122 // See CR 6362902. |
1123 if (AlwaysTenure) { | |
1124 FLAG_SET_CMDLINE(intx, MaxTenuringThreshold, 0); | |
1125 } | |
695 | 1126 // When using compressed oops, we use local overflow stacks, |
1127 // rather than using a global overflow list chained through | |
1128 // the klass word of the object's pre-image. | |
1129 if (UseCompressedOops && !ParGCUseLocalOverflow) { | |
1130 if (!FLAG_IS_DEFAULT(ParGCUseLocalOverflow)) { | |
1131 warning("Forcing +ParGCUseLocalOverflow: needed if using compressed references"); | |
1132 } | |
1133 FLAG_SET_DEFAULT(ParGCUseLocalOverflow, true); | |
1134 } | |
1135 assert(ParGCUseLocalOverflow || !UseCompressedOops, "Error"); | |
0 | 1136 } |
1137 } | |
1138 | |
1139 // Adjust some sizes to suit CMS and/or ParNew needs; these work well on | |
1140 // sparc/solaris for certain applications, but would gain from | |
1141 // further optimization and tuning efforts, and would almost | |
1142 // certainly gain from analysis of platform and environment. | |
1143 void Arguments::set_cms_and_parnew_gc_flags() { | |
1064 | 1144 assert(!UseSerialGC && !UseParallelOldGC && !UseParallelGC, "Error"); |
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1145 assert(UseConcMarkSweepGC, "CMS is expected to be on here"); |
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1146 |
0 | 1147 // If we are using CMS, we prefer to UseParNewGC, |
1148 // unless explicitly forbidden. | |
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1149 if (FLAG_IS_DEFAULT(UseParNewGC)) { |
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1150 FLAG_SET_ERGO(bool, UseParNewGC, true); |
0 | 1151 } |
1152 | |
4838 | 1153 // Turn off AdaptiveSizePolicy for CMS until it is complete. |
1154 disable_adaptive_size_policy("UseConcMarkSweepGC"); | |
0 | 1155 |
1156 // In either case, adjust ParallelGCThreads and/or UseParNewGC | |
1157 // as needed. | |
10
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1158 if (UseParNewGC) { |
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1159 set_parnew_gc_flags(); |
0 | 1160 } |
1161 | |
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1162 // MaxHeapSize is aligned down in collectorPolicy |
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1163 size_t max_heap = align_size_down(MaxHeapSize, |
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1164 CardTableRS::ct_max_alignment_constraint()); |
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1165 |
0 | 1166 // Now make adjustments for CMS |
2368
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1167 intx tenuring_default = (intx)6; |
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1168 size_t young_gen_per_worker = CMSYoungGenPerWorker; |
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1169 |
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1170 // Preferred young gen size for "short" pauses: |
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1171 // upper bound depends on # of threads and NewRatio. |
0 | 1172 const uintx parallel_gc_threads = |
1173 (ParallelGCThreads == 0 ? 1 : ParallelGCThreads); | |
1174 const size_t preferred_max_new_size_unaligned = | |
2368
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1175 MIN2(max_heap/(NewRatio+1), ScaleForWordSize(young_gen_per_worker * parallel_gc_threads)); |
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1176 size_t preferred_max_new_size = |
0 | 1177 align_size_up(preferred_max_new_size_unaligned, os::vm_page_size()); |
1178 | |
1179 // Unless explicitly requested otherwise, size young gen | |
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1180 // for "short" pauses ~ CMSYoungGenPerWorker*ParallelGCThreads |
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1181 |
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1182 // If either MaxNewSize or NewRatio is set on the command line, |
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1183 // assume the user is trying to set the size of the young gen. |
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1184 if (FLAG_IS_DEFAULT(MaxNewSize) && FLAG_IS_DEFAULT(NewRatio)) { |
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1185 |
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1186 // Set MaxNewSize to our calculated preferred_max_new_size unless |
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1187 // NewSize was set on the command line and it is larger than |
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1188 // preferred_max_new_size. |
0 | 1189 if (!FLAG_IS_DEFAULT(NewSize)) { // NewSize explicitly set at command-line |
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1190 FLAG_SET_ERGO(uintx, MaxNewSize, MAX2(NewSize, preferred_max_new_size)); |
0 | 1191 } else { |
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1192 FLAG_SET_ERGO(uintx, MaxNewSize, preferred_max_new_size); |
0 | 1193 } |
1064 | 1194 if (PrintGCDetails && Verbose) { |
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1195 // Too early to use gclog_or_tty |
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1196 tty->print_cr("CMS ergo set MaxNewSize: " SIZE_FORMAT, MaxNewSize); |
886
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1197 } |
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1198 |
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1199 // Code along this path potentially sets NewSize and OldSize |
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1200 |
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1201 assert(max_heap >= InitialHeapSize, "Error"); |
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1202 assert(max_heap >= NewSize, "Error"); |
0 | 1203 |
1064 | 1204 if (PrintGCDetails && Verbose) { |
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1205 // Too early to use gclog_or_tty |
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1206 tty->print_cr("CMS set min_heap_size: " SIZE_FORMAT |
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1207 " initial_heap_size: " SIZE_FORMAT |
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1208 " max_heap: " SIZE_FORMAT, |
1064 | 1209 min_heap_size(), InitialHeapSize, max_heap); |
13
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1210 } |
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1211 size_t min_new = preferred_max_new_size; |
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1212 if (FLAG_IS_CMDLINE(NewSize)) { |
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1213 min_new = NewSize; |
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1214 } |
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1215 if (max_heap > min_new && min_heap_size() > min_new) { |
0 | 1216 // Unless explicitly requested otherwise, make young gen |
1217 // at least min_new, and at most preferred_max_new_size. | |
1218 if (FLAG_IS_DEFAULT(NewSize)) { | |
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1219 FLAG_SET_ERGO(uintx, NewSize, MAX2(NewSize, min_new)); |
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1220 FLAG_SET_ERGO(uintx, NewSize, MIN2(preferred_max_new_size, NewSize)); |
1064 | 1221 if (PrintGCDetails && Verbose) { |
13
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1222 // Too early to use gclog_or_tty |
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1223 tty->print_cr("CMS ergo set NewSize: " SIZE_FORMAT, NewSize); |
13
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1224 } |
0 | 1225 } |
1226 // Unless explicitly requested otherwise, size old gen | |
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1227 // so it's NewRatio x of NewSize. |
0 | 1228 if (FLAG_IS_DEFAULT(OldSize)) { |
1229 if (max_heap > NewSize) { | |
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1230 FLAG_SET_ERGO(uintx, OldSize, MIN2(NewRatio*NewSize, max_heap - NewSize)); |
1064 | 1231 if (PrintGCDetails && Verbose) { |
13
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1232 // Too early to use gclog_or_tty |
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1233 tty->print_cr("CMS ergo set OldSize: " SIZE_FORMAT, OldSize); |
13
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1234 } |
0 | 1235 } |
1236 } | |
1237 } | |
1238 } | |
1239 // Unless explicitly requested otherwise, definitely | |
1240 // promote all objects surviving "tenuring_default" scavenges. | |
1241 if (FLAG_IS_DEFAULT(MaxTenuringThreshold) && | |
1242 FLAG_IS_DEFAULT(SurvivorRatio)) { | |
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1243 FLAG_SET_ERGO(intx, MaxTenuringThreshold, tenuring_default); |
0 | 1244 } |
1245 // If we decided above (or user explicitly requested) | |
1246 // `promote all' (via MaxTenuringThreshold := 0), | |
1247 // prefer minuscule survivor spaces so as not to waste | |
1248 // space for (non-existent) survivors | |
1249 if (FLAG_IS_DEFAULT(SurvivorRatio) && MaxTenuringThreshold == 0) { | |
13
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1250 FLAG_SET_ERGO(intx, SurvivorRatio, MAX2((intx)1024, SurvivorRatio)); |
0 | 1251 } |
1252 // If OldPLABSize is set and CMSParPromoteBlocksToClaim is not, | |
1253 // set CMSParPromoteBlocksToClaim equal to OldPLABSize. | |
1254 // This is done in order to make ParNew+CMS configuration to work | |
1255 // with YoungPLABSize and OldPLABSize options. | |
1256 // See CR 6362902. | |
1257 if (!FLAG_IS_DEFAULT(OldPLABSize)) { | |
1258 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { | |
13
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1259 // OldPLABSize is not the default value but CMSParPromoteBlocksToClaim |
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1260 // is. In this situtation let CMSParPromoteBlocksToClaim follow |
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1261 // the value (either from the command line or ergonomics) of |
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1262 // OldPLABSize. Following OldPLABSize is an ergonomics decision. |
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1263 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, OldPLABSize); |
1145
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1264 } else { |
0 | 1265 // OldPLABSize and CMSParPromoteBlocksToClaim are both set. |
1266 // CMSParPromoteBlocksToClaim is a collector-specific flag, so | |
1267 // we'll let it to take precedence. | |
1268 jio_fprintf(defaultStream::error_stream(), | |
886
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1269 "Both OldPLABSize and CMSParPromoteBlocksToClaim" |
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1270 " options are specified for the CMS collector." |
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1271 " CMSParPromoteBlocksToClaim will take precedence.\n"); |
0 | 1272 } |
1273 } | |
1145
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1274 if (!FLAG_IS_DEFAULT(ResizeOldPLAB) && !ResizeOldPLAB) { |
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1275 // OldPLAB sizing manually turned off: Use a larger default setting, |
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1276 // unless it was manually specified. This is because a too-low value |
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1277 // will slow down scavenges. |
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1278 if (FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim)) { |
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1279 FLAG_SET_ERGO(uintx, CMSParPromoteBlocksToClaim, 50); // default value before 6631166 |
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1280 } |
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1281 } |
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1282 // Overwrite OldPLABSize which is the variable we will internally use everywhere. |
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1283 FLAG_SET_ERGO(uintx, OldPLABSize, CMSParPromoteBlocksToClaim); |
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1284 // If either of the static initialization defaults have changed, note this |
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1285 // modification. |
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1286 if (!FLAG_IS_DEFAULT(CMSParPromoteBlocksToClaim) || !FLAG_IS_DEFAULT(OldPLABWeight)) { |
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1287 CFLS_LAB::modify_initialization(OldPLABSize, OldPLABWeight); |
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1288 } |
1284 | 1289 if (PrintGCDetails && Verbose) { |
1290 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1291 MarkStackSize / K, MarkStackSizeMax / K); | |
1292 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1293 } | |
0 | 1294 } |
1145
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1295 #endif // KERNEL |
0 | 1296 |
1571
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1297 void set_object_alignment() { |
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1298 // Object alignment. |
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1299 assert(is_power_of_2(ObjectAlignmentInBytes), "ObjectAlignmentInBytes must be power of 2"); |
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1300 MinObjAlignmentInBytes = ObjectAlignmentInBytes; |
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1301 assert(MinObjAlignmentInBytes >= HeapWordsPerLong * HeapWordSize, "ObjectAlignmentInBytes value is too small"); |
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1302 MinObjAlignment = MinObjAlignmentInBytes / HeapWordSize; |
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1303 assert(MinObjAlignmentInBytes == MinObjAlignment * HeapWordSize, "ObjectAlignmentInBytes value is incorrect"); |
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1304 MinObjAlignmentInBytesMask = MinObjAlignmentInBytes - 1; |
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1305 |
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1306 LogMinObjAlignmentInBytes = exact_log2(ObjectAlignmentInBytes); |
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1307 LogMinObjAlignment = LogMinObjAlignmentInBytes - LogHeapWordSize; |
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1308 |
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1309 // Oop encoding heap max |
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1310 OopEncodingHeapMax = (uint64_t(max_juint) + 1) << LogMinObjAlignmentInBytes; |
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1311 |
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1312 #ifndef KERNEL |
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1313 // Set CMS global values |
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1314 CompactibleFreeListSpace::set_cms_values(); |
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1315 #endif // KERNEL |
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1316 } |
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1317 |
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1318 bool verify_object_alignment() { |
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1319 // Object alignment. |
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1320 if (!is_power_of_2(ObjectAlignmentInBytes)) { |
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1321 jio_fprintf(defaultStream::error_stream(), |
1829
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1322 "error: ObjectAlignmentInBytes=%d must be power of 2\n", |
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1323 (int)ObjectAlignmentInBytes); |
1571
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1324 return false; |
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1325 } |
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1326 if ((int)ObjectAlignmentInBytes < BytesPerLong) { |
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1327 jio_fprintf(defaultStream::error_stream(), |
1829
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1328 "error: ObjectAlignmentInBytes=%d must be greater or equal %d\n", |
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1329 (int)ObjectAlignmentInBytes, BytesPerLong); |
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1330 return false; |
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1331 } |
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1332 // It does not make sense to have big object alignment |
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1333 // since a space lost due to alignment will be greater |
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1334 // then a saved space from compressed oops. |
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1335 if ((int)ObjectAlignmentInBytes > 256) { |
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1336 jio_fprintf(defaultStream::error_stream(), |
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1337 "error: ObjectAlignmentInBytes=%d must not be greater then 256\n", |
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1338 (int)ObjectAlignmentInBytes); |
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1339 return false; |
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1340 } |
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1341 // In case page size is very small. |
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1342 if ((int)ObjectAlignmentInBytes >= os::vm_page_size()) { |
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1343 jio_fprintf(defaultStream::error_stream(), |
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1344 "error: ObjectAlignmentInBytes=%d must be less then page size %d\n", |
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1345 (int)ObjectAlignmentInBytes, os::vm_page_size()); |
1571
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1346 return false; |
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1347 } |
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1348 return true; |
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1349 } |
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1350 |
135
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1351 inline uintx max_heap_for_compressed_oops() { |
1963 | 1352 // Avoid sign flip. |
1353 if (OopEncodingHeapMax < MaxPermSize + os::vm_page_size()) { | |
1354 return 0; | |
1355 } | |
1356 LP64_ONLY(return OopEncodingHeapMax - MaxPermSize - os::vm_page_size()); | |
1064 | 1357 NOT_LP64(ShouldNotReachHere(); return 0); |
135
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1358 } |
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1359 |
0 | 1360 bool Arguments::should_auto_select_low_pause_collector() { |
1361 if (UseAutoGCSelectPolicy && | |
1362 !FLAG_IS_DEFAULT(MaxGCPauseMillis) && | |
1363 (MaxGCPauseMillis <= AutoGCSelectPauseMillis)) { | |
1364 if (PrintGCDetails) { | |
1365 // Cannot use gclog_or_tty yet. | |
1366 tty->print_cr("Automatic selection of the low pause collector" | |
1367 " based on pause goal of %d (ms)", MaxGCPauseMillis); | |
1368 } | |
1369 return true; | |
1370 } | |
1371 return false; | |
1372 } | |
1373 | |
1374 void Arguments::set_ergonomics_flags() { | |
1375 // Parallel GC is not compatible with sharing. If one specifies | |
1064 | 1376 // that they want sharing explicitly, do not set ergonomics flags. |
2362
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1377 if (DumpSharedSpaces || RequireSharedSpaces) { |
0 | 1378 return; |
1379 } | |
1380 | |
4946 | 1381 if (os::is_server_class_machine()) { |
0 | 1382 // If no other collector is requested explicitly, |
1383 // let the VM select the collector based on | |
1384 // machine class and automatic selection policy. | |
1385 if (!UseSerialGC && | |
1386 !UseConcMarkSweepGC && | |
342
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1387 !UseG1GC && |
0 | 1388 !UseParNewGC && |
1389 !DumpSharedSpaces && | |
1390 FLAG_IS_DEFAULT(UseParallelGC)) { | |
1391 if (should_auto_select_low_pause_collector()) { | |
1392 FLAG_SET_ERGO(bool, UseConcMarkSweepGC, true); | |
1393 } else { | |
1394 FLAG_SET_ERGO(bool, UseParallelGC, true); | |
1395 } | |
1396 no_shared_spaces(); | |
1397 } | |
1398 } | |
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1399 |
1010 | 1400 #ifndef ZERO |
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1401 #ifdef _LP64 |
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1402 // Check that UseCompressedOops can be set with the max heap size allocated |
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1403 // by ergonomics. |
187 | 1404 if (MaxHeapSize <= max_heap_for_compressed_oops()) { |
1783 | 1405 #if !defined(COMPILER1) || defined(TIERED) |
2228 | 1406 if (FLAG_IS_DEFAULT(UseCompressedOops)) { |
932 | 1407 FLAG_SET_ERGO(bool, UseCompressedOops, true); |
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1408 } |
1060 | 1409 #endif |
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1410 #ifdef _WIN64 |
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1411 if (UseLargePages && UseCompressedOops) { |
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1412 // Cannot allocate guard pages for implicit checks in indexed addressing |
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1413 // mode, when large pages are specified on windows. |
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1414 // This flag could be switched ON if narrow oop base address is set to 0, |
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1415 // see code in Universe::initialize_heap(). |
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1416 Universe::set_narrow_oop_use_implicit_null_checks(false); |
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1417 } |
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1418 #endif // _WIN64 |
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1419 } else { |
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1420 if (UseCompressedOops && !FLAG_IS_DEFAULT(UseCompressedOops)) { |
344 | 1421 warning("Max heap size too large for Compressed Oops"); |
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1422 FLAG_SET_DEFAULT(UseCompressedOops, false); |
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1423 } |
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1424 } |
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1425 // Also checks that certain machines are slower with compressed oops |
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1426 // in vm_version initialization code. |
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1427 #endif // _LP64 |
1010 | 1428 #endif // !ZERO |
0 | 1429 } |
1430 | |
1431 void Arguments::set_parallel_gc_flags() { | |
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1432 assert(UseParallelGC || UseParallelOldGC, "Error"); |
4879 | 1433 // Enable ParallelOld unless it was explicitly disabled (cmd line or rc file). |
1434 if (FLAG_IS_DEFAULT(UseParallelOldGC)) { | |
1435 FLAG_SET_DEFAULT(UseParallelOldGC, true); | |
0 | 1436 } |
4879 | 1437 FLAG_SET_DEFAULT(UseParallelGC, true); |
0 | 1438 |
1439 // If no heap maximum was requested explicitly, use some reasonable fraction | |
1440 // of the physical memory, up to a maximum of 1GB. | |
1441 if (UseParallelGC) { | |
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1442 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1443 Abstract_VM_Version::parallel_worker_threads()); |
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1444 |
0 | 1445 // If InitialSurvivorRatio or MinSurvivorRatio were not specified, but the |
1446 // SurvivorRatio has been set, reset their default values to SurvivorRatio + | |
1447 // 2. By doing this we make SurvivorRatio also work for Parallel Scavenger. | |
1448 // See CR 6362902 for details. | |
1449 if (!FLAG_IS_DEFAULT(SurvivorRatio)) { | |
1450 if (FLAG_IS_DEFAULT(InitialSurvivorRatio)) { | |
1451 FLAG_SET_DEFAULT(InitialSurvivorRatio, SurvivorRatio + 2); | |
1452 } | |
1453 if (FLAG_IS_DEFAULT(MinSurvivorRatio)) { | |
1454 FLAG_SET_DEFAULT(MinSurvivorRatio, SurvivorRatio + 2); | |
1455 } | |
1456 } | |
1457 | |
1458 if (UseParallelOldGC) { | |
1459 // Par compact uses lower default values since they are treated as | |
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1460 // minimums. These are different defaults because of the different |
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1461 // interpretation and are not ergonomically set. |
0 | 1462 if (FLAG_IS_DEFAULT(MarkSweepDeadRatio)) { |
13
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1463 FLAG_SET_DEFAULT(MarkSweepDeadRatio, 1); |
0 | 1464 } |
1465 if (FLAG_IS_DEFAULT(PermMarkSweepDeadRatio)) { | |
13
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1466 FLAG_SET_DEFAULT(PermMarkSweepDeadRatio, 5); |
0 | 1467 } |
1468 } | |
1469 } | |
3322
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1470 if (UseNUMA) { |
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1471 if (FLAG_IS_DEFAULT(MinHeapDeltaBytes)) { |
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1472 FLAG_SET_DEFAULT(MinHeapDeltaBytes, 64*M); |
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1473 } |
3885 | 1474 // For those collectors or operating systems (eg, Windows) that do |
1475 // not support full UseNUMA, we will map to UseNUMAInterleaving for now | |
1476 UseNUMAInterleaving = true; | |
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1477 } |
0 | 1478 } |
1479 | |
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1480 void Arguments::set_g1_gc_flags() { |
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1481 assert(UseG1GC, "Error"); |
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1482 #ifdef COMPILER1 |
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1483 FastTLABRefill = false; |
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1484 #endif |
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1485 FLAG_SET_DEFAULT(ParallelGCThreads, |
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1486 Abstract_VM_Version::parallel_worker_threads()); |
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1487 if (ParallelGCThreads == 0) { |
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1488 FLAG_SET_DEFAULT(ParallelGCThreads, |
751 | 1489 Abstract_VM_Version::parallel_worker_threads()); |
342
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1490 } |
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1491 no_shared_spaces(); |
751 | 1492 |
1284 | 1493 if (FLAG_IS_DEFAULT(MarkStackSize)) { |
1311
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1494 FLAG_SET_DEFAULT(MarkStackSize, 128 * TASKQUEUE_SIZE); |
1284 | 1495 } |
1496 if (PrintGCDetails && Verbose) { | |
1497 tty->print_cr("MarkStackSize: %uk MarkStackSizeMax: %uk", | |
1498 MarkStackSize / K, MarkStackSizeMax / K); | |
1499 tty->print_cr("ConcGCThreads: %u", ConcGCThreads); | |
1500 } | |
1356 | 1501 |
1502 if (FLAG_IS_DEFAULT(GCTimeRatio) || GCTimeRatio == 0) { | |
1503 // In G1, we want the default GC overhead goal to be higher than | |
1504 // say in PS. So we set it here to 10%. Otherwise the heap might | |
1505 // be expanded more aggressively than we would like it to. In | |
1506 // fact, even 10% seems to not be high enough in some cases | |
1507 // (especially small GC stress tests that the main thing they do | |
1508 // is allocation). We might consider increase it further. | |
1509 FLAG_SET_DEFAULT(GCTimeRatio, 9); | |
1510 } | |
342
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1511 } |
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1512 |
1064 | 1513 void Arguments::set_heap_size() { |
1514 if (!FLAG_IS_DEFAULT(DefaultMaxRAMFraction)) { | |
1515 // Deprecated flag | |
1516 FLAG_SET_CMDLINE(uintx, MaxRAMFraction, DefaultMaxRAMFraction); | |
1517 } | |
1518 | |
1519 const julong phys_mem = | |
1520 FLAG_IS_DEFAULT(MaxRAM) ? MIN2(os::physical_memory(), (julong)MaxRAM) | |
1521 : (julong)MaxRAM; | |
1522 | |
1523 // If the maximum heap size has not been set with -Xmx, | |
1524 // then set it as fraction of the size of physical memory, | |
1525 // respecting the maximum and minimum sizes of the heap. | |
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1526 if (FLAG_IS_DEFAULT(MaxHeapSize)) { |
1064 | 1527 julong reasonable_max = phys_mem / MaxRAMFraction; |
1528 | |
1529 if (phys_mem <= MaxHeapSize * MinRAMFraction) { | |
1530 // Small physical memory, so use a minimum fraction of it for the heap | |
1531 reasonable_max = phys_mem / MinRAMFraction; | |
1532 } else { | |
1533 // Not-small physical memory, so require a heap at least | |
1534 // as large as MaxHeapSize | |
1535 reasonable_max = MAX2(reasonable_max, (julong)MaxHeapSize); | |
1536 } | |
1537 if (!FLAG_IS_DEFAULT(ErgoHeapSizeLimit) && ErgoHeapSizeLimit != 0) { | |
1538 // Limit the heap size to ErgoHeapSizeLimit | |
1539 reasonable_max = MIN2(reasonable_max, (julong)ErgoHeapSizeLimit); | |
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1540 } |
1064 | 1541 if (UseCompressedOops) { |
1542 // Limit the heap size to the maximum possible when using compressed oops | |
1963 | 1543 julong max_coop_heap = (julong)max_heap_for_compressed_oops(); |
1544 if (HeapBaseMinAddress + MaxHeapSize < max_coop_heap) { | |
1545 // Heap should be above HeapBaseMinAddress to get zero based compressed oops | |
1546 // but it should be not less than default MaxHeapSize. | |
1547 max_coop_heap -= HeapBaseMinAddress; | |
1548 } | |
1549 reasonable_max = MIN2(reasonable_max, max_coop_heap); | |
1064 | 1550 } |
1551 reasonable_max = os::allocatable_physical_memory(reasonable_max); | |
1552 | |
1553 if (!FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1554 // An initial heap size was specified on the command line, | |
1555 // so be sure that the maximum size is consistent. Done | |
1556 // after call to allocatable_physical_memory because that | |
1557 // method might reduce the allocation size. | |
1558 reasonable_max = MAX2(reasonable_max, (julong)InitialHeapSize); | |
1559 } | |
1560 | |
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1561 if (PrintGCDetails && Verbose) { |
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1562 // Cannot use gclog_or_tty yet. |
1064 | 1563 tty->print_cr(" Maximum heap size " SIZE_FORMAT, reasonable_max); |
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1564 } |
1064 | 1565 FLAG_SET_ERGO(uintx, MaxHeapSize, (uintx)reasonable_max); |
1566 } | |
1567 | |
1568 // If the initial_heap_size has not been set with InitialHeapSize | |
1569 // or -Xms, then set it as fraction of the size of physical memory, | |
1570 // respecting the maximum and minimum sizes of the heap. | |
1571 if (FLAG_IS_DEFAULT(InitialHeapSize)) { | |
1074
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1572 julong reasonable_minimum = (julong)(OldSize + NewSize); |
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1573 |
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1574 reasonable_minimum = MIN2(reasonable_minimum, (julong)MaxHeapSize); |
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1575 |
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1576 reasonable_minimum = os::allocatable_physical_memory(reasonable_minimum); |
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1577 |
1064 | 1578 julong reasonable_initial = phys_mem / InitialRAMFraction; |
1579 | |
1074
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1580 reasonable_initial = MAX2(reasonable_initial, reasonable_minimum); |
1064 | 1581 reasonable_initial = MIN2(reasonable_initial, (julong)MaxHeapSize); |
1582 | |
1583 reasonable_initial = os::allocatable_physical_memory(reasonable_initial); | |
1584 | |
1585 if (PrintGCDetails && Verbose) { | |
1586 // Cannot use gclog_or_tty yet. | |
1587 tty->print_cr(" Initial heap size " SIZE_FORMAT, (uintx)reasonable_initial); | |
1074
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1588 tty->print_cr(" Minimum heap size " SIZE_FORMAT, (uintx)reasonable_minimum); |
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1589 } |
1064 | 1590 FLAG_SET_ERGO(uintx, InitialHeapSize, (uintx)reasonable_initial); |
1074
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1591 set_min_heap_size((uintx)reasonable_minimum); |
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1592 } |
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1593 } |
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1594 |
0 | 1595 // This must be called after ergonomics because we want bytecode rewriting |
1596 // if the server compiler is used, or if UseSharedSpaces is disabled. | |
1597 void Arguments::set_bytecode_flags() { | |
1598 // Better not attempt to store into a read-only space. | |
1599 if (UseSharedSpaces) { | |
1600 FLAG_SET_DEFAULT(RewriteBytecodes, false); | |
1601 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1602 } | |
1603 | |
1604 if (!RewriteBytecodes) { | |
1605 FLAG_SET_DEFAULT(RewriteFrequentPairs, false); | |
1606 } | |
1607 } | |
1608 | |
1609 // Aggressive optimization flags -XX:+AggressiveOpts | |
1610 void Arguments::set_aggressive_opts_flags() { | |
17
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|
1611 #ifdef COMPILER2 |
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1612 if (AggressiveOpts || !FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
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1613 if (FLAG_IS_DEFAULT(EliminateAutoBox)) { |
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|
1614 FLAG_SET_DEFAULT(EliminateAutoBox, true); |
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1615 } |
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|
1616 if (FLAG_IS_DEFAULT(AutoBoxCacheMax)) { |
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|
1617 FLAG_SET_DEFAULT(AutoBoxCacheMax, 20000); |
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1618 } |
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|
1619 |
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|
1620 // Feed the cache size setting into the JDK |
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|
1621 char buffer[1024]; |
513
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|
1622 sprintf(buffer, "java.lang.Integer.IntegerCache.high=" INTX_FORMAT, AutoBoxCacheMax); |
17
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|
1623 add_property(buffer); |
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|
1624 } |
416
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|
1625 if (AggressiveOpts && FLAG_IS_DEFAULT(BiasedLockingStartupDelay)) { |
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|
1626 FLAG_SET_DEFAULT(BiasedLockingStartupDelay, 500); |
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|
1627 } |
17
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|
1628 #endif |
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|
1629 |
0 | 1630 if (AggressiveOpts) { |
61 | 1631 // Sample flag setting code |
1632 // if (FLAG_IS_DEFAULT(EliminateZeroing)) { | |
1633 // FLAG_SET_DEFAULT(EliminateZeroing, true); | |
1634 // } | |
0 | 1635 } |
1636 } | |
1637 | |
1638 //=========================================================================================================== | |
1639 // Parsing of java.compiler property | |
1640 | |
1641 void Arguments::process_java_compiler_argument(char* arg) { | |
1642 // For backwards compatibility, Djava.compiler=NONE or "" | |
1643 // causes us to switch to -Xint mode UNLESS -Xdebug | |
1644 // is also specified. | |
1645 if (strlen(arg) == 0 || strcasecmp(arg, "NONE") == 0) { | |
1646 set_java_compiler(true); // "-Djava.compiler[=...]" most recently seen. | |
1647 } | |
1648 } | |
1649 | |
1650 void Arguments::process_java_launcher_argument(const char* launcher, void* extra_info) { | |
1651 _sun_java_launcher = strdup(launcher); | |
2302
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|
1652 if (strcmp("gamma", _sun_java_launcher) == 0) { |
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|
1653 _created_by_gamma_launcher = true; |
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|
1654 } |
0 | 1655 } |
1656 | |
1657 bool Arguments::created_by_java_launcher() { | |
1658 assert(_sun_java_launcher != NULL, "property must have value"); | |
1659 return strcmp(DEFAULT_JAVA_LAUNCHER, _sun_java_launcher) != 0; | |
1660 } | |
1661 | |
2302
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|
1662 bool Arguments::created_by_gamma_launcher() { |
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|
1663 return _created_by_gamma_launcher; |
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|
1664 } |
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|
1665 |
0 | 1666 //=========================================================================================================== |
1667 // Parsing of main arguments | |
1668 | |
1244
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|
1669 bool Arguments::verify_interval(uintx val, uintx min, |
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|
1670 uintx max, const char* name) { |
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|
1671 // Returns true iff value is in the inclusive interval [min..max] |
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|
1672 // false, otherwise. |
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|
1673 if (val >= min && val <= max) { |
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|
1674 return true; |
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|
1675 } |
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|
1676 jio_fprintf(defaultStream::error_stream(), |
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|
1677 "%s of " UINTX_FORMAT " is invalid; must be between " UINTX_FORMAT |
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|
1678 " and " UINTX_FORMAT "\n", |
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|
1679 name, val, min, max); |
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|
1680 return false; |
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|
1681 } |
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|
1682 |
1744
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|
1683 bool Arguments::verify_min_value(intx val, intx min, const char* name) { |
2366
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|
1684 // Returns true if given value is at least specified min threshold |
1744
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1685 // false, otherwise. |
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1686 if (val >= min ) { |
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|
1687 return true; |
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|
1688 } |
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|
1689 jio_fprintf(defaultStream::error_stream(), |
2366
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|
1690 "%s of " INTX_FORMAT " is invalid; must be at least " INTX_FORMAT "\n", |
1744
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|
1691 name, val, min); |
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|
1692 return false; |
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|
1693 } |
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|
1694 |
0 | 1695 bool Arguments::verify_percentage(uintx value, const char* name) { |
1696 if (value <= 100) { | |
1697 return true; | |
1698 } | |
1699 jio_fprintf(defaultStream::error_stream(), | |
1700 "%s of " UINTX_FORMAT " is invalid; must be between 0 and 100\n", | |
1701 name, value); | |
1702 return false; | |
1703 } | |
1704 | |
1064 | 1705 static void force_serial_gc() { |
0 | 1706 FLAG_SET_DEFAULT(UseSerialGC, true); |
1707 FLAG_SET_DEFAULT(UseParNewGC, false); | |
1708 FLAG_SET_DEFAULT(UseConcMarkSweepGC, false); | |
945
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|
1709 FLAG_SET_DEFAULT(CMSIncrementalMode, false); // special CMS suboption |
0 | 1710 FLAG_SET_DEFAULT(UseParallelGC, false); |
1711 FLAG_SET_DEFAULT(UseParallelOldGC, false); | |
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|
1712 FLAG_SET_DEFAULT(UseG1GC, false); |
0 | 1713 } |
1714 | |
1715 static bool verify_serial_gc_flags() { | |
1716 return (UseSerialGC && | |
945
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1717 !(UseParNewGC || (UseConcMarkSweepGC || CMSIncrementalMode) || UseG1GC || |
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1718 UseParallelGC || UseParallelOldGC)); |
0 | 1719 } |
1720 | |
3767
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|
1721 // check if do gclog rotation |
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1722 // +UseGCLogFileRotation is a must, |
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1723 // no gc log rotation when log file not supplied or |
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1724 // NumberOfGCLogFiles is 0, or GCLogFileSize is 0 |
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|
1725 void check_gclog_consistency() { |
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|
1726 if (UseGCLogFileRotation) { |
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|
1727 if ((Arguments::gc_log_filename() == NULL) || |
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|
1728 (NumberOfGCLogFiles == 0) || |
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|
1729 (GCLogFileSize == 0)) { |
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|
1730 jio_fprintf(defaultStream::output_stream(), |
3769
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|
1731 "To enable GC log rotation, use -Xloggc:<filename> -XX:+UseGCLogFileRotation -XX:NumberOfGCLogFiles=<num_of_files> -XX:GCLogFileSize=<num_of_size>\n" |
3767
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|
1732 "where num_of_file > 0 and num_of_size > 0\n" |
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|
1733 "GC log rotation is turned off\n"); |
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|
1734 UseGCLogFileRotation = false; |
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6941923: RFE: Handling large log files produced by long running Java Applications
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3349
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|
1735 } |
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|
1736 } |
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|
1737 |
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|
1738 if (UseGCLogFileRotation && GCLogFileSize < 8*K) { |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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|
1739 FLAG_SET_CMDLINE(uintx, GCLogFileSize, 8*K); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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|
1740 jio_fprintf(defaultStream::output_stream(), |
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|
1741 "GCLogFileSize changed to minimum 8K\n"); |
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
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|
1742 } |
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|
1743 } |
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|
1744 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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|
1745 // Check consistency of GC selection |
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|
1746 bool Arguments::check_gc_consistency() { |
3767
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|
1747 check_gclog_consistency(); |
10
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6362677: Change parallel GC collector default number of parallel GC threads.
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|
1748 bool status = true; |
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|
1749 // Ensure that the user has not selected conflicting sets |
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|
1750 // of collectors. [Note: this check is merely a user convenience; |
28372612af5e
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|
1751 // collectors over-ride each other so that only a non-conflicting |
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|
1752 // set is selected; however what the user gets is not what they |
28372612af5e
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diff
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|
1753 // may have expected from the combination they asked for. It's |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
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0
diff
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|
1754 // better to reduce user confusion by not allowing them to |
28372612af5e
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jmasa
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0
diff
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|
1755 // select conflicting combinations. |
28372612af5e
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|
1756 uint i = 0; |
28372612af5e
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diff
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|
1757 if (UseSerialGC) i++; |
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|
1758 if (UseConcMarkSweepGC || UseParNewGC) i++; |
28372612af5e
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|
1759 if (UseParallelGC || UseParallelOldGC) i++; |
845
df6caf649ff7
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|
1760 if (UseG1GC) i++; |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
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|
1761 if (i > 1) { |
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|
1762 jio_fprintf(defaultStream::error_stream(), |
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|
1763 "Conflicting collector combinations in option list; " |
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|
1764 "please refer to the release notes for the combinations " |
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diff
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|
1765 "allowed\n"); |
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|
1766 status = false; |
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|
1767 } |
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|
1768 |
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|
1769 return status; |
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|
1770 } |
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|
1771 |
1744
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|
1772 // Check stack pages settings |
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|
1773 bool Arguments::check_stack_pages() |
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|
1774 { |
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|
1775 bool status = true; |
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|
1776 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages"); |
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|
1777 status = status && verify_min_value(StackRedPages, 1, "StackRedPages"); |
1867
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|
1778 // greater stack shadow pages can't generate instruction to bang stack |
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|
1779 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages"); |
1744
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1780 return status; |
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1781 } |
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1782 |
0 | 1783 // Check the consistency of vm_init_args |
1784 bool Arguments::check_vm_args_consistency() { | |
1785 // Method for adding checks for flag consistency. | |
1786 // The intent is to warn the user of all possible conflicts, | |
1787 // before returning an error. | |
1788 // Note: Needs platform-dependent factoring. | |
1789 bool status = true; | |
1790 | |
1791 #if ( (defined(COMPILER2) && defined(SPARC))) | |
1792 // NOTE: The call to VM_Version_init depends on the fact that VM_Version_init | |
1793 // on sparc doesn't require generation of a stub as is the case on, e.g., | |
1794 // x86. Normally, VM_Version_init must be called from init_globals in | |
1795 // init.cpp, which is called by the initial java thread *after* arguments | |
1796 // have been parsed. VM_Version_init gets called twice on sparc. | |
1797 extern void VM_Version_init(); | |
1798 VM_Version_init(); | |
1799 if (!VM_Version::has_v9()) { | |
1800 jio_fprintf(defaultStream::error_stream(), | |
1801 "V8 Machine detected, Server requires V9\n"); | |
1802 status = false; | |
1803 } | |
1804 #endif /* COMPILER2 && SPARC */ | |
1805 | |
1806 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product | |
1807 // builds so the cost of stack banging can be measured. | |
1808 #if (defined(PRODUCT) && defined(SOLARIS)) | |
1809 if (!UseBoundThreads && !UseStackBanging) { | |
1810 jio_fprintf(defaultStream::error_stream(), | |
1811 "-UseStackBanging conflicts with -UseBoundThreads\n"); | |
1812 | |
1813 status = false; | |
1814 } | |
1815 #endif | |
1816 | |
1817 if (TLABRefillWasteFraction == 0) { | |
1818 jio_fprintf(defaultStream::error_stream(), | |
1819 "TLABRefillWasteFraction should be a denominator, " | |
1820 "not " SIZE_FORMAT "\n", | |
1821 TLABRefillWasteFraction); | |
1822 status = false; | |
1823 } | |
1824 | |
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1825 status = status && verify_percentage(AdaptiveSizePolicyWeight, |
0 | 1826 "AdaptiveSizePolicyWeight"); |
10
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|
1827 status = status && verify_percentage(AdaptivePermSizeWeight, "AdaptivePermSizeWeight"); |
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1828 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance"); |
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|
1829 status = status && verify_percentage(MinHeapFreeRatio, "MinHeapFreeRatio"); |
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|
1830 status = status && verify_percentage(MaxHeapFreeRatio, "MaxHeapFreeRatio"); |
0 | 1831 |
1832 if (MinHeapFreeRatio > MaxHeapFreeRatio) { | |
1833 jio_fprintf(defaultStream::error_stream(), | |
1834 "MinHeapFreeRatio (" UINTX_FORMAT ") must be less than or " | |
1835 "equal to MaxHeapFreeRatio (" UINTX_FORMAT ")\n", | |
1836 MinHeapFreeRatio, MaxHeapFreeRatio); | |
1837 status = false; | |
1838 } | |
1839 // Keeping the heap 100% free is hard ;-) so limit it to 99%. | |
1840 MinHeapFreeRatio = MIN2(MinHeapFreeRatio, (uintx) 99); | |
1841 | |
1842 if (FullGCALot && FLAG_IS_DEFAULT(MarkSweepAlwaysCompactCount)) { | |
1843 MarkSweepAlwaysCompactCount = 1; // Move objects every gc. | |
1844 } | |
1845 | |
483
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|
1846 if (UseParallelOldGC && ParallelOldGCSplitALot) { |
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|
1847 // Settings to encourage splitting. |
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|
1848 if (!FLAG_IS_CMDLINE(NewRatio)) { |
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|
1849 FLAG_SET_CMDLINE(intx, NewRatio, 2); |
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diff
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|
1850 } |
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|
1851 if (!FLAG_IS_CMDLINE(ScavengeBeforeFullGC)) { |
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|
1852 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); |
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|
1853 } |
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|
1854 } |
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|
1855 |
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|
1856 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
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|
1857 status = status && verify_percentage(GCTimeLimit, "GCTimeLimit"); |
0 | 1858 if (GCTimeLimit == 100) { |
1859 // Turn off gc-overhead-limit-exceeded checks | |
1860 FLAG_SET_DEFAULT(UseGCOverheadLimit, false); | |
1861 } | |
1862 | |
10
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|
1863 status = status && verify_percentage(GCHeapFreeLimit, "GCHeapFreeLimit"); |
0 | 1864 |
10
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1865 status = status && check_gc_consistency(); |
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|
1866 status = status && check_stack_pages(); |
0 | 1867 |
1868 if (_has_alloc_profile) { | |
1869 if (UseParallelGC || UseParallelOldGC) { | |
1870 jio_fprintf(defaultStream::error_stream(), | |
1871 "error: invalid argument combination.\n" | |
1872 "Allocation profiling (-Xaprof) cannot be used together with " | |
1873 "Parallel GC (-XX:+UseParallelGC or -XX:+UseParallelOldGC).\n"); | |
1874 status = false; | |
1875 } | |
1876 if (UseConcMarkSweepGC) { | |
1877 jio_fprintf(defaultStream::error_stream(), | |
1878 "error: invalid argument combination.\n" | |
1879 "Allocation profiling (-Xaprof) cannot be used together with " | |
1880 "the CMS collector (-XX:+UseConcMarkSweepGC).\n"); | |
1881 status = false; | |
1882 } | |
1883 } | |
1884 | |
1885 if (CMSIncrementalMode) { | |
1886 if (!UseConcMarkSweepGC) { | |
1887 jio_fprintf(defaultStream::error_stream(), | |
1888 "error: invalid argument combination.\n" | |
1889 "The CMS collector (-XX:+UseConcMarkSweepGC) must be " | |
1890 "selected in order\nto use CMSIncrementalMode.\n"); | |
1891 status = false; | |
1892 } else { | |
10
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|
1893 status = status && verify_percentage(CMSIncrementalDutyCycle, |
0 | 1894 "CMSIncrementalDutyCycle"); |
10
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|
1895 status = status && verify_percentage(CMSIncrementalDutyCycleMin, |
0 | 1896 "CMSIncrementalDutyCycleMin"); |
10
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|
1897 status = status && verify_percentage(CMSIncrementalSafetyFactor, |
0 | 1898 "CMSIncrementalSafetyFactor"); |
10
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|
1899 status = status && verify_percentage(CMSIncrementalOffset, |
0 | 1900 "CMSIncrementalOffset"); |
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|
1901 status = status && verify_percentage(CMSExpAvgFactor, |
0 | 1902 "CMSExpAvgFactor"); |
1903 // If it was not set on the command line, set | |
1904 // CMSInitiatingOccupancyFraction to 1 so icms can initiate cycles early. | |
1905 if (CMSInitiatingOccupancyFraction < 0) { | |
1906 FLAG_SET_DEFAULT(CMSInitiatingOccupancyFraction, 1); | |
1907 } | |
1908 } | |
1909 } | |
1910 | |
1911 // CMS space iteration, which FLSVerifyAllHeapreferences entails, | |
1912 // insists that we hold the requisite locks so that the iteration is | |
1913 // MT-safe. For the verification at start-up and shut-down, we don't | |
1914 // yet have a good way of acquiring and releasing these locks, | |
1915 // which are not visible at the CollectedHeap level. We want to | |
1916 // be able to acquire these locks and then do the iteration rather | |
1917 // than just disable the lock verification. This will be fixed under | |
1918 // bug 4788986. | |
1919 if (UseConcMarkSweepGC && FLSVerifyAllHeapReferences) { | |
1920 if (VerifyGCStartAt == 0) { | |
1921 warning("Heap verification at start-up disabled " | |
1922 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
1923 VerifyGCStartAt = 1; // Disable verification at start-up | |
1924 } | |
1925 if (VerifyBeforeExit) { | |
1926 warning("Heap verification at shutdown disabled " | |
1927 "(due to current incompatibility with FLSVerifyAllHeapReferences)"); | |
1928 VerifyBeforeExit = false; // Disable verification at shutdown | |
1929 } | |
1930 } | |
1931 | |
1932 // Note: only executed in non-PRODUCT mode | |
1933 if (!UseAsyncConcMarkSweepGC && | |
1934 (ExplicitGCInvokesConcurrent || | |
1935 ExplicitGCInvokesConcurrentAndUnloadsClasses)) { | |
1936 jio_fprintf(defaultStream::error_stream(), | |
1937 "error: +ExplictGCInvokesConcurrent[AndUnloadsClasses] conflicts" | |
1938 " with -UseAsyncConcMarkSweepGC"); | |
1939 status = false; | |
1940 } | |
1941 | |
2366
1fb790245268
6820066: Check that -XX:ParGCArrayScanChunk has a value larger than zero.
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|
1942 status = status && verify_min_value(ParGCArrayScanChunk, 1, "ParGCArrayScanChunk"); |
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|
1943 |
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|
1944 #ifndef SERIALGC |
1283
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|
1945 if (UseG1GC) { |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
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|
1946 status = status && verify_percentage(InitiatingHeapOccupancyPercent, |
1c72304f1885
6928073: G1: use existing command line parameters for marking cycle initiation
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1257
diff
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|
1947 "InitiatingHeapOccupancyPercent"); |
2174
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|
1948 status = status && verify_min_value(G1RefProcDrainInterval, 1, |
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|
1949 "G1RefProcDrainInterval"); |
234761c55641
6608385: G1: need to support parallel reference processing
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|
1950 status = status && verify_min_value((intx)G1ConcMarkStepDurationMillis, 1, |
234761c55641
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|
1951 "G1ConcMarkStepDurationMillis"); |
1283
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1257
diff
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|
1952 } |
2174
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diff
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|
1953 #endif |
1283
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|
1954 |
1244
745c853ee57f
6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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1188
diff
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|
1955 status = status && verify_interval(RefDiscoveryPolicy, |
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|
1956 ReferenceProcessor::DiscoveryPolicyMin, |
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6885297: java -XX:RefDiscoveryPolicy=2 or -XX:TLABWasteTargetPercent=0 cause VM crash
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|
1957 ReferenceProcessor::DiscoveryPolicyMax, |
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|
1958 "RefDiscoveryPolicy"); |
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|
1959 |
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|
1960 // Limit the lower bound of this flag to 1 as it is used in a division |
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|
1961 // expression. |
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|
1962 status = status && verify_interval(TLABWasteTargetPercent, |
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|
1963 1, 100, "TLABWasteTargetPercent"); |
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|
1964 |
1571
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|
1965 status = status && verify_object_alignment(); |
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|
1966 |
4559
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
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|
1967 #ifdef GRAAL |
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|
1968 if (UseCompressedOops) { |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
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|
1969 jio_fprintf(defaultStream::error_stream(), |
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diff
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|
1970 "CompressedOops are not supported in Graal at the moment\n"); |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
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|
1971 status = false; |
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|
1972 } |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
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diff
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|
1973 if (UseG1GC) { |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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|
1974 jio_fprintf(defaultStream::error_stream(), |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
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|
1975 "G1 is not supported in Graal at the moment\n"); |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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|
1976 status = false; |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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|
1977 } |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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|
1978 #endif |
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Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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|
1979 |
0 | 1980 return status; |
1981 } | |
1982 | |
1983 bool Arguments::is_bad_option(const JavaVMOption* option, jboolean ignore, | |
1984 const char* option_type) { | |
1985 if (ignore) return false; | |
1986 | |
1987 const char* spacer = " "; | |
1988 if (option_type == NULL) { | |
1989 option_type = ++spacer; // Set both to the empty string. | |
1990 } | |
1991 | |
1992 if (os::obsolete_option(option)) { | |
1993 jio_fprintf(defaultStream::error_stream(), | |
1994 "Obsolete %s%soption: %s\n", option_type, spacer, | |
1995 option->optionString); | |
1996 return false; | |
1997 } else { | |
1998 jio_fprintf(defaultStream::error_stream(), | |
1999 "Unrecognized %s%soption: %s\n", option_type, spacer, | |
2000 option->optionString); | |
2001 return true; | |
2002 } | |
2003 } | |
2004 | |
2005 static const char* user_assertion_options[] = { | |
2006 "-da", "-ea", "-disableassertions", "-enableassertions", 0 | |
2007 }; | |
2008 | |
2009 static const char* system_assertion_options[] = { | |
2010 "-dsa", "-esa", "-disablesystemassertions", "-enablesystemassertions", 0 | |
2011 }; | |
2012 | |
2013 // Return true if any of the strings in null-terminated array 'names' matches. | |
2014 // If tail_allowed is true, then the tail must begin with a colon; otherwise, | |
2015 // the option must match exactly. | |
2016 static bool match_option(const JavaVMOption* option, const char** names, const char** tail, | |
2017 bool tail_allowed) { | |
2018 for (/* empty */; *names != NULL; ++names) { | |
2019 if (match_option(option, *names, tail)) { | |
2020 if (**tail == '\0' || tail_allowed && **tail == ':') { | |
2021 return true; | |
2022 } | |
2023 } | |
2024 } | |
2025 return false; | |
2026 } | |
2027 | |
1284 | 2028 bool Arguments::parse_uintx(const char* value, |
2029 uintx* uintx_arg, | |
2030 uintx min_size) { | |
2031 | |
2032 // Check the sign first since atomull() parses only unsigned values. | |
2033 bool value_is_positive = !(*value == '-'); | |
2034 | |
2035 if (value_is_positive) { | |
2036 julong n; | |
2037 bool good_return = atomull(value, &n); | |
2038 if (good_return) { | |
2039 bool above_minimum = n >= min_size; | |
2040 bool value_is_too_large = n > max_uintx; | |
2041 | |
2042 if (above_minimum && !value_is_too_large) { | |
2043 *uintx_arg = n; | |
2044 return true; | |
2045 } | |
2046 } | |
2047 } | |
2048 return false; | |
2049 } | |
2050 | |
0 | 2051 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
|
2052 julong* long_arg, |
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|
2053 julong min_size) { |
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483
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|
2054 if (!atomull(s, long_arg)) return arg_unreadable; |
0 | 2055 return check_memory_size(*long_arg, min_size); |
2056 } | |
2057 | |
2058 // Parse JavaVMInitArgs structure | |
4559
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|
2059 #ifdef GRAAL |
4155
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Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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|
2060 static void prepend_to_graal_classpath(SysClassPath &cp, const char* graal_dir, const char* project) { |
394404b2d9bd
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Doug Simon <doug.simon@oracle.com>
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|
2061 const int BUFFER_SIZE = 1024; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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|
2062 char path[BUFFER_SIZE]; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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|
2063 |
4252
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Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
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|
2064 const char fileSep = *os::file_separator(); |
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Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
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|
2065 sprintf(path, "%s%c%s%cbin", graal_dir, fileSep, project, fileSep); |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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4137
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|
2066 DIR* dir = os::opendir(path); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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|
2067 if (dir == NULL) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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|
2068 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The Graal class directory %s could not be opened.\n", path); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
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changeset
|
2069 vm_exit(1); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
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changeset
|
2070 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
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changeset
|
2071 os::closedir(dir); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
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|
2072 cp.add_prefix(path); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
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|
2073 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
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changeset
|
2074 |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2075 // Walk up the directory hierarchy starting from JAVA_HOME looking |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
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|
2076 // for a directory named "graal". If found, then the full path to |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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diff
changeset
|
2077 // this directory is returned in graal_dir. |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2078 static bool find_graal_dir(char* graal_dir) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2079 strcpy(graal_dir, Arguments::get_java_home()); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2080 char* end = graal_dir + strlen(graal_dir); |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2081 const char fileSep = *os::file_separator(); |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2082 while (end != graal_dir) { |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2083 if (fileSep == '/') |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2084 strcat(graal_dir, "/graal"); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2085 else { |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2086 assert(fileSep == '\\', "unexpected separator char"); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2087 strcat(graal_dir, "\\graal"); |
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2088 } |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2089 DIR* dir = os::opendir(graal_dir); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2090 if (dir != NULL) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2091 os::closedir(dir); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2092 return true; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2093 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2094 *end = 0; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2095 while (end != graal_dir) { |
4252
67e88b7624d5
Removed need for GRAAL environment variable on Windows.
Doug Simon <doug.simon@oracle.com>
parents:
4205
diff
changeset
|
2096 if (*end == fileSep) { |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2097 *end = 0; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2098 break; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2099 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2100 end--; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2101 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2102 } |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
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diff
changeset
|
2103 return false; |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2104 } |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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4350
diff
changeset
|
2105 #endif |
0 | 2106 |
2107 jint Arguments::parse_vm_init_args(const JavaVMInitArgs* args) { | |
2108 // For components of the system classpath. | |
2109 SysClassPath scp(Arguments::get_sysclasspath()); | |
2110 bool scp_assembly_required = false; | |
2111 | |
2112 // Save default settings for some mode flags | |
2113 Arguments::_AlwaysCompileLoopMethods = AlwaysCompileLoopMethods; | |
2114 Arguments::_UseOnStackReplacement = UseOnStackReplacement; | |
2115 Arguments::_ClipInlining = ClipInlining; | |
2116 Arguments::_BackgroundCompilation = BackgroundCompilation; | |
2117 | |
3341
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2118 // Setup flags for mixed which is the default |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2119 set_mode_flags(_mixed); |
e9b8ef09622a
7041582: set_mode_flags isn't called without -Xmixed specified
never
parents:
3261
diff
changeset
|
2120 |
0 | 2121 // Parse JAVA_TOOL_OPTIONS environment variable (if present) |
2122 jint result = parse_java_tool_options_environment_variable(&scp, &scp_assembly_required); | |
2123 if (result != JNI_OK) { | |
2124 return result; | |
2125 } | |
2126 | |
2127 // Parse JavaVMInitArgs structure passed in | |
2128 result = parse_each_vm_init_arg(args, &scp, &scp_assembly_required, COMMAND_LINE); | |
2129 if (result != JNI_OK) { | |
2130 return result; | |
2131 } | |
2132 | |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
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4350
diff
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|
2133 #ifdef GRAAL |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
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3535
diff
changeset
|
2134 if (PrintVMOptions) { |
3568
409ef3a68dc8
re-lock objects whose lock was removed by escape analysis, enable stack walking compilation policy (-XX:CompilationPolicyChoice=1)
Lukas Stadler <lukas.stadler@jku.at>
parents:
3546
diff
changeset
|
2135 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
|
2136 } |
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
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|
2137 const int BUFFER_SIZE = 1024; |
3736
d3ec27ea1b20
Work with GRAAL environment variable instead of MAXINE environment variable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3601
diff
changeset
|
2138 char graal_dir[BUFFER_SIZE]; |
d3ec27ea1b20
Work with GRAAL environment variable instead of MAXINE environment variable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3601
diff
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|
2139 if (!os::getenv("GRAAL", graal_dir, sizeof(graal_dir))) { |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2140 if (find_graal_dir(graal_dir) == false) { |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2141 jio_fprintf(defaultStream::output_stream(), "Error while starting Graal VM: The GRAAL environment variable needs to point to the directory containing the Graal projects.\n"); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2142 vm_exit(0); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2143 } |
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
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|
2144 } |
3736
d3ec27ea1b20
Work with GRAAL environment variable instead of MAXINE environment variable.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
3601
diff
changeset
|
2145 if (PrintVMOptions) tty->print_cr("GRAAL=%s", graal_dir); |
4345
176d60b77d31
Moved PrintCompilation logic from graal.compiler to graal.hotspot. Made bootclasspath generated from the GRAAL environment option more generic (such that adding/removing a project requires no changes in the C++ part).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4252
diff
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|
2146 |
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2147 // this declaration is checked for correctness by 'mx build' - only |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
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|
2148 // modify its entries, not its name or shape |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2149 const char* graal_projects[] = { |
6495
75f130f2b30f
moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
Doug Simon <doug.simon@oracle.com>
parents:
6493
diff
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|
2150 #ifdef AMD64 |
75f130f2b30f
moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
Doug Simon <doug.simon@oracle.com>
parents:
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diff
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|
2151 "com.oracle.max.asm.amd64", |
75f130f2b30f
moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
Doug Simon <doug.simon@oracle.com>
parents:
6493
diff
changeset
|
2152 "com.oracle.graal.lir.amd64", |
6496
16d1411409b4
moved AMD64 specific code into com.oracle.graal.compiler.amd64
Doug Simon <doug.simon@oracle.com>
parents:
6495
diff
changeset
|
2153 "com.oracle.graal.compiler.amd64", |
6495
75f130f2b30f
moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
Doug Simon <doug.simon@oracle.com>
parents:
6493
diff
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|
2154 "com.oracle.graal.hotspot.amd64", |
75f130f2b30f
moved AMD64 specific HotSpot code in com.oracle.graal.hotspot.amd64 project
Doug Simon <doug.simon@oracle.com>
parents:
6493
diff
changeset
|
2155 #endif |
5508
22fe762332af
Changes in C++ part for the Java renamings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5176
diff
changeset
|
2156 "com.oracle.graal.api", |
22fe762332af
Changes in C++ part for the Java renamings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5176
diff
changeset
|
2157 "com.oracle.graal.api.meta", |
5512
18f51ca0070f
Changes in the C++ part according to the Java renamings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5508
diff
changeset
|
2158 "com.oracle.graal.api.code", |
18f51ca0070f
Changes in the C++ part according to the Java renamings.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5508
diff
changeset
|
2159 "com.oracle.graal.api.interpreter", |
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2160 "com.oracle.max.criutils", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2161 "com.oracle.graal.hotspot", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2162 "com.oracle.max.asm", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2163 "com.oracle.graal.alloc", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2164 "com.oracle.graal.snippets", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2165 "com.oracle.graal.compiler", |
6417
6fed95768f8f
Add loop projet to C++
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
6411
diff
changeset
|
2166 "com.oracle.graal.compiler.loop", |
6411
c5afcc2ebd3d
change of project structure: separate compiler and LIR, put EA into separate project
Lukas Stadler <lukas.stadler@jku.at>
parents:
6275
diff
changeset
|
2167 "com.oracle.graal.compiler.phases", |
c5afcc2ebd3d
change of project structure: separate compiler and LIR, put EA into separate project
Lukas Stadler <lukas.stadler@jku.at>
parents:
6275
diff
changeset
|
2168 "com.oracle.graal.compiler.virtual", |
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2169 "com.oracle.graal.nodes", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2170 "com.oracle.graal.printer", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2171 "com.oracle.graal.debug", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2172 "com.oracle.graal.graph", |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2173 "com.oracle.graal.lir", |
5570
30162e74f11f
Updated list of projects added to the bootclasspath.
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
5512
diff
changeset
|
2174 "com.oracle.graal.bytecode", |
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2175 "com.oracle.graal.java" |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2176 }; |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2177 |
5093
ba5e8ba07b5c
compiler.class.path should not include system class path
Doug Simon <doug.simon@oracle.com>
parents:
5065
diff
changeset
|
2178 SysClassPath scp_compiler(""); |
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2179 const int len = sizeof(graal_projects) / sizeof(char*); |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2180 for (int i = 0; i < len; i++) { |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2181 if (PrintVMOptions) { |
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2182 tty->print_cr("Adding project directory %s to bootclasspath", graal_projects[i]); |
4345
176d60b77d31
Moved PrintCompilation logic from graal.compiler to graal.hotspot. Made bootclasspath generated from the GRAAL environment option more generic (such that adding/removing a project requires no changes in the C++ part).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4252
diff
changeset
|
2183 } |
5152
cfdb3c24bd6c
changed Graal class path declaration (back) to a constant that is checked for correctness during building
Doug Simon <doug.simon@oracle.com>
parents:
5093
diff
changeset
|
2184 prepend_to_graal_classpath(scp_compiler, graal_dir, graal_projects[i]); |
4345
176d60b77d31
Moved PrintCompilation logic from graal.compiler to graal.hotspot. Made bootclasspath generated from the GRAAL environment option more generic (such that adding/removing a project requires no changes in the C++ part).
Thomas Wuerthinger <thomas.wuerthinger@oracle.com>
parents:
4252
diff
changeset
|
2185 } |
4155
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2186 scp_compiler.expand_endorsed(); |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2187 |
394404b2d9bd
Removed strict requirement for GRAAL environment variable. It only needs to be set now if the graal directory is not in the directory hierarchy of GraalVM JDK.
Doug Simon <doug.simon@oracle.com>
parents:
4137
diff
changeset
|
2188 Arguments::set_compilerclasspath(scp_compiler.combined_path()); |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2189 #endif |
3543
344264424174
Enable debugging of compiler code from Java IDEs. Moved binary to "graal" subdirectory. New flag for starting Graal is just "-graal".
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
3535
diff
changeset
|
2190 |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2191 if (AggressiveOpts) { |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2192 // Insert alt-rt.jar between user-specified bootclasspath |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2193 // prefix and the default bootclasspath. os::set_boot_path() |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2194 // uses meta_index_dir as the default bootclasspath directory. |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2195 const char* altclasses_jar = "alt-rt.jar"; |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2196 size_t altclasses_path_len = strlen(get_meta_index_dir()) + 1 + |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2197 strlen(altclasses_jar); |
6197 | 2198 char* altclasses_path = NEW_C_HEAP_ARRAY(char, altclasses_path_len, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2199 strcpy(altclasses_path, get_meta_index_dir()); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2200 strcat(altclasses_path, altclasses_jar); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2201 scp.add_suffix_to_prefix(altclasses_path); |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2202 scp_assembly_required = true; |
6197 | 2203 FREE_C_HEAP_ARRAY(char, altclasses_path, mtInternal); |
531
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2204 } |
40ee984935b9
6792705: Add JAR file to bootclasspath when using AggressiveOpts
phh
parents:
513
diff
changeset
|
2205 |
5915 | 2206 if (WhiteBoxAPI) { |
2207 // Append wb.jar to bootclasspath if enabled | |
2208 const char* wb_jar = "wb.jar"; | |
2209 size_t wb_path_len = strlen(get_meta_index_dir()) + 1 + | |
2210 strlen(wb_jar); | |
6197 | 2211 char* wb_path = NEW_C_HEAP_ARRAY(char, wb_path_len, mtInternal); |
5915 | 2212 strcpy(wb_path, get_meta_index_dir()); |
2213 strcat(wb_path, wb_jar); | |
2214 scp.add_suffix(wb_path); | |
2215 scp_assembly_required = true; | |
6197 | 2216 FREE_C_HEAP_ARRAY(char, wb_path, mtInternal); |
5915 | 2217 } |
2218 | |
0 | 2219 // Parse _JAVA_OPTIONS environment variable (if present) (mimics classic VM) |
2220 result = parse_java_options_environment_variable(&scp, &scp_assembly_required); | |
2221 if (result != JNI_OK) { | |
2222 return result; | |
2223 } | |
2224 | |
2225 // Do final processing now that all arguments have been parsed | |
2226 result = finalize_vm_init_args(&scp, scp_assembly_required); | |
2227 if (result != JNI_OK) { | |
2228 return result; | |
2229 } | |
2230 | |
2231 return JNI_OK; | |
2232 } | |
2233 | |
2234 jint Arguments::parse_each_vm_init_arg(const JavaVMInitArgs* args, | |
2235 SysClassPath* scp_p, | |
2236 bool* scp_assembly_required_p, | |
2237 FlagValueOrigin origin) { | |
2238 // Remaining part of option string | |
2239 const char* tail; | |
2240 | |
2241 // iterate over arguments | |
2242 for (int index = 0; index < args->nOptions; index++) { | |
2243 bool is_absolute_path = false; // for -agentpath vs -agentlib | |
2244 | |
2245 const JavaVMOption* option = args->options + index; | |
2246 | |
2247 if (!match_option(option, "-Djava.class.path", &tail) && | |
2248 !match_option(option, "-Dsun.java.command", &tail) && | |
2249 !match_option(option, "-Dsun.java.launcher", &tail)) { | |
2250 | |
2251 // add all jvm options to the jvm_args string. This string | |
2252 // is used later to set the java.vm.args PerfData string constant. | |
2253 // the -Djava.class.path and the -Dsun.java.command options are | |
2254 // omitted from jvm_args string as each have their own PerfData | |
2255 // string constant object. | |
2256 build_jvm_args(option->optionString); | |
2257 } | |
2258 | |
2259 // -verbose:[class/gc/jni] | |
2260 if (match_option(option, "-verbose", &tail)) { | |
2261 if (!strcmp(tail, ":class") || !strcmp(tail, "")) { | |
2262 FLAG_SET_CMDLINE(bool, TraceClassLoading, true); | |
2263 FLAG_SET_CMDLINE(bool, TraceClassUnloading, true); | |
2264 } else if (!strcmp(tail, ":gc")) { | |
2265 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2266 } else if (!strcmp(tail, ":jni")) { | |
2267 FLAG_SET_CMDLINE(bool, PrintJNIResolving, true); | |
2268 } | |
2269 // -da / -ea / -disableassertions / -enableassertions | |
2270 // These accept an optional class/package name separated by a colon, e.g., | |
2271 // -da:java.lang.Thread. | |
2272 } else if (match_option(option, user_assertion_options, &tail, true)) { | |
2273 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2274 if (*tail == '\0') { | |
2275 JavaAssertions::setUserClassDefault(enable); | |
2276 } else { | |
2277 assert(*tail == ':', "bogus match by match_option()"); | |
2278 JavaAssertions::addOption(tail + 1, enable); | |
2279 } | |
2280 // -dsa / -esa / -disablesystemassertions / -enablesystemassertions | |
2281 } else if (match_option(option, system_assertion_options, &tail, false)) { | |
2282 bool enable = option->optionString[1] == 'e'; // char after '-' is 'e' | |
2283 JavaAssertions::setSystemClassDefault(enable); | |
2284 // -bootclasspath: | |
2285 } else if (match_option(option, "-Xbootclasspath:", &tail)) { | |
2286 scp_p->reset_path(tail); | |
2287 *scp_assembly_required_p = true; | |
2288 // -bootclasspath/a: | |
2289 } else if (match_option(option, "-Xbootclasspath/a:", &tail)) { | |
2290 scp_p->add_suffix(tail); | |
2291 *scp_assembly_required_p = true; | |
2292 // -bootclasspath/p: | |
2293 } else if (match_option(option, "-Xbootclasspath/p:", &tail)) { | |
2294 scp_p->add_prefix(tail); | |
2295 *scp_assembly_required_p = true; | |
2296 // -Xrun | |
2297 } else if (match_option(option, "-Xrun", &tail)) { | |
531
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|
2298 if (tail != NULL) { |
0 | 2299 const char* pos = strchr(tail, ':'); |
2300 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2301 char* name = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2302 name[len] = '\0'; |
2303 | |
2304 char *options = NULL; | |
2305 if(pos != NULL) { | |
2306 size_t len2 = strlen(pos+1) + 1; // options start after ':'. Final zero must be copied. | |
6197 | 2307 options = (char*)memcpy(NEW_C_HEAP_ARRAY(char, len2, mtInternal), pos+1, len2); |
0 | 2308 } |
2309 #ifdef JVMTI_KERNEL | |
2310 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
2311 warning("profiling and debugging agents are not supported with Kernel VM"); | |
2312 } else | |
2313 #endif // JVMTI_KERNEL | |
2314 add_init_library(name, options); | |
2315 } | |
2316 // -agentlib and -agentpath | |
2317 } else if (match_option(option, "-agentlib:", &tail) || | |
2318 (is_absolute_path = match_option(option, "-agentpath:", &tail))) { | |
2319 if(tail != NULL) { | |
2320 const char* pos = strchr(tail, '='); | |
2321 size_t len = (pos == NULL) ? strlen(tail) : pos - tail; | |
6197 | 2322 char* name = strncpy(NEW_C_HEAP_ARRAY(char, len + 1, mtInternal), tail, len); |
0 | 2323 name[len] = '\0'; |
2324 | |
2325 char *options = NULL; | |
2326 if(pos != NULL) { | |
6197 | 2327 options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(pos + 1) + 1, mtInternal), pos + 1); |
0 | 2328 } |
2329 #ifdef JVMTI_KERNEL | |
2330 if ((strcmp(name, "hprof") == 0) || (strcmp(name, "jdwp") == 0)) { | |
2331 warning("profiling and debugging agents are not supported with Kernel VM"); | |
2332 } else | |
2333 #endif // JVMTI_KERNEL | |
2334 add_init_agent(name, options, is_absolute_path); | |
2335 | |
2336 } | |
2337 // -javaagent | |
2338 } else if (match_option(option, "-javaagent:", &tail)) { | |
2339 if(tail != NULL) { | |
6197 | 2340 char *options = strcpy(NEW_C_HEAP_ARRAY(char, strlen(tail) + 1, mtInternal), tail); |
0 | 2341 add_init_agent("instrument", options, false); |
2342 } | |
2343 // -Xnoclassgc | |
2344 } else if (match_option(option, "-Xnoclassgc", &tail)) { | |
2345 FLAG_SET_CMDLINE(bool, ClassUnloading, false); | |
2346 // -Xincgc: i-CMS | |
2347 } else if (match_option(option, "-Xincgc", &tail)) { | |
2348 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2349 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, true); | |
2350 // -Xnoincgc: no i-CMS | |
2351 } else if (match_option(option, "-Xnoincgc", &tail)) { | |
2352 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2353 FLAG_SET_CMDLINE(bool, CMSIncrementalMode, false); | |
2354 // -Xconcgc | |
2355 } else if (match_option(option, "-Xconcgc", &tail)) { | |
2356 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, true); | |
2357 // -Xnoconcgc | |
2358 } else if (match_option(option, "-Xnoconcgc", &tail)) { | |
2359 FLAG_SET_CMDLINE(bool, UseConcMarkSweepGC, false); | |
2360 // -Xbatch | |
2361 } else if (match_option(option, "-Xbatch", &tail)) { | |
2362 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2363 // -Xmn for compatibility with other JVM vendors | |
2364 } else if (match_option(option, "-Xmn", &tail)) { | |
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2365 julong long_initial_eden_size = 0; |
0 | 2366 ArgsRange errcode = parse_memory_size(tail, &long_initial_eden_size, 1); |
2367 if (errcode != arg_in_range) { | |
2368 jio_fprintf(defaultStream::error_stream(), | |
2369 "Invalid initial eden size: %s\n", option->optionString); | |
2370 describe_range_error(errcode); | |
2371 return JNI_EINVAL; | |
2372 } | |
1064 | 2373 FLAG_SET_CMDLINE(uintx, MaxNewSize, (uintx)long_initial_eden_size); |
2374 FLAG_SET_CMDLINE(uintx, NewSize, (uintx)long_initial_eden_size); | |
0 | 2375 // -Xms |
2376 } else if (match_option(option, "-Xms", &tail)) { | |
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2377 julong long_initial_heap_size = 0; |
0 | 2378 ArgsRange errcode = parse_memory_size(tail, &long_initial_heap_size, 1); |
2379 if (errcode != arg_in_range) { | |
2380 jio_fprintf(defaultStream::error_stream(), | |
2381 "Invalid initial heap size: %s\n", option->optionString); | |
2382 describe_range_error(errcode); | |
2383 return JNI_EINVAL; | |
2384 } | |
1064 | 2385 FLAG_SET_CMDLINE(uintx, InitialHeapSize, (uintx)long_initial_heap_size); |
0 | 2386 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2387 set_min_heap_size(InitialHeapSize); |
0 | 2388 // -Xmx |
2389 } else if (match_option(option, "-Xmx", &tail)) { | |
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2390 julong long_max_heap_size = 0; |
0 | 2391 ArgsRange errcode = parse_memory_size(tail, &long_max_heap_size, 1); |
2392 if (errcode != arg_in_range) { | |
2393 jio_fprintf(defaultStream::error_stream(), | |
2394 "Invalid maximum heap size: %s\n", option->optionString); | |
2395 describe_range_error(errcode); | |
2396 return JNI_EINVAL; | |
2397 } | |
1064 | 2398 FLAG_SET_CMDLINE(uintx, MaxHeapSize, (uintx)long_max_heap_size); |
0 | 2399 // Xmaxf |
2400 } else if (match_option(option, "-Xmaxf", &tail)) { | |
2401 int maxf = (int)(atof(tail) * 100); | |
2402 if (maxf < 0 || maxf > 100) { | |
2403 jio_fprintf(defaultStream::error_stream(), | |
2404 "Bad max heap free percentage size: %s\n", | |
2405 option->optionString); | |
2406 return JNI_EINVAL; | |
2407 } else { | |
2408 FLAG_SET_CMDLINE(uintx, MaxHeapFreeRatio, maxf); | |
2409 } | |
2410 // Xminf | |
2411 } else if (match_option(option, "-Xminf", &tail)) { | |
2412 int minf = (int)(atof(tail) * 100); | |
2413 if (minf < 0 || minf > 100) { | |
2414 jio_fprintf(defaultStream::error_stream(), | |
2415 "Bad min heap free percentage size: %s\n", | |
2416 option->optionString); | |
2417 return JNI_EINVAL; | |
2418 } else { | |
2419 FLAG_SET_CMDLINE(uintx, MinHeapFreeRatio, minf); | |
2420 } | |
2421 // -Xss | |
2422 } else if (match_option(option, "-Xss", &tail)) { | |
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2423 julong long_ThreadStackSize = 0; |
0 | 2424 ArgsRange errcode = parse_memory_size(tail, &long_ThreadStackSize, 1000); |
2425 if (errcode != arg_in_range) { | |
2426 jio_fprintf(defaultStream::error_stream(), | |
2427 "Invalid thread stack size: %s\n", option->optionString); | |
2428 describe_range_error(errcode); | |
2429 return JNI_EINVAL; | |
2430 } | |
2431 // Internally track ThreadStackSize in units of 1024 bytes. | |
2432 FLAG_SET_CMDLINE(intx, ThreadStackSize, | |
2433 round_to((int)long_ThreadStackSize, K) / K); | |
2434 // -Xoss | |
2435 } else if (match_option(option, "-Xoss", &tail)) { | |
2436 // HotSpot does not have separate native and Java stacks, ignore silently for compatibility | |
2437 // -Xmaxjitcodesize | |
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2438 } else if (match_option(option, "-Xmaxjitcodesize", &tail) || |
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2439 match_option(option, "-XX:ReservedCodeCacheSize=", &tail)) { |
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2440 julong long_ReservedCodeCacheSize = 0; |
0 | 2441 ArgsRange errcode = parse_memory_size(tail, &long_ReservedCodeCacheSize, |
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2442 (size_t)InitialCodeCacheSize); |
0 | 2443 if (errcode != arg_in_range) { |
2444 jio_fprintf(defaultStream::error_stream(), | |
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2445 "Invalid maximum code cache size: %s. Should be greater than InitialCodeCacheSize=%dK\n", |
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2446 option->optionString, InitialCodeCacheSize/K); |
0 | 2447 describe_range_error(errcode); |
2448 return JNI_EINVAL; | |
2449 } | |
2450 FLAG_SET_CMDLINE(uintx, ReservedCodeCacheSize, (uintx)long_ReservedCodeCacheSize); | |
2451 // -green | |
2452 } else if (match_option(option, "-green", &tail)) { | |
2453 jio_fprintf(defaultStream::error_stream(), | |
2454 "Green threads support not available\n"); | |
2455 return JNI_EINVAL; | |
2456 // -native | |
2457 } else if (match_option(option, "-native", &tail)) { | |
2458 // HotSpot always uses native threads, ignore silently for compatibility | |
2459 // -Xsqnopause | |
2460 } else if (match_option(option, "-Xsqnopause", &tail)) { | |
2461 // EVM option, ignore silently for compatibility | |
2462 // -Xrs | |
2463 } else if (match_option(option, "-Xrs", &tail)) { | |
2464 // Classic/EVM option, new functionality | |
2465 FLAG_SET_CMDLINE(bool, ReduceSignalUsage, true); | |
2466 } else if (match_option(option, "-Xusealtsigs", &tail)) { | |
2467 // change default internal VM signals used - lower case for back compat | |
2468 FLAG_SET_CMDLINE(bool, UseAltSigs, true); | |
2469 // -Xoptimize | |
2470 } else if (match_option(option, "-Xoptimize", &tail)) { | |
2471 // EVM option, ignore silently for compatibility | |
2472 // -Xprof | |
2473 } else if (match_option(option, "-Xprof", &tail)) { | |
2474 #ifndef FPROF_KERNEL | |
2475 _has_profile = true; | |
2476 #else // FPROF_KERNEL | |
2477 // do we have to exit? | |
2478 warning("Kernel VM does not support flat profiling."); | |
2479 #endif // FPROF_KERNEL | |
2480 // -Xaprof | |
2481 } else if (match_option(option, "-Xaprof", &tail)) { | |
2482 _has_alloc_profile = true; | |
2483 // -Xconcurrentio | |
2484 } else if (match_option(option, "-Xconcurrentio", &tail)) { | |
2485 FLAG_SET_CMDLINE(bool, UseLWPSynchronization, true); | |
2486 FLAG_SET_CMDLINE(bool, BackgroundCompilation, false); | |
2487 FLAG_SET_CMDLINE(intx, DeferThrSuspendLoopCount, 1); | |
2488 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2489 FLAG_SET_CMDLINE(uintx, NewSizeThreadIncrease, 16 * K); // 20Kb per thread added to new generation | |
2490 | |
2491 // -Xinternalversion | |
2492 } else if (match_option(option, "-Xinternalversion", &tail)) { | |
2493 jio_fprintf(defaultStream::output_stream(), "%s\n", | |
2494 VM_Version::internal_vm_info_string()); | |
2495 vm_exit(0); | |
2496 #ifndef PRODUCT | |
2497 // -Xprintflags | |
2498 } else if (match_option(option, "-Xprintflags", &tail)) { | |
4773 | 2499 CommandLineFlags::printFlags(tty, false); |
0 | 2500 vm_exit(0); |
2501 #endif | |
2502 // -D | |
2503 } else if (match_option(option, "-D", &tail)) { | |
2504 if (!add_property(tail)) { | |
2505 return JNI_ENOMEM; | |
2506 } | |
2507 // Out of the box management support | |
2508 if (match_option(option, "-Dcom.sun.management", &tail)) { | |
2509 FLAG_SET_CMDLINE(bool, ManagementServer, true); | |
2510 } | |
2511 // -Xint | |
2512 } else if (match_option(option, "-Xint", &tail)) { | |
2513 set_mode_flags(_int); | |
2514 // -Xmixed | |
2515 } else if (match_option(option, "-Xmixed", &tail)) { | |
2516 set_mode_flags(_mixed); | |
2517 // -Xcomp | |
2518 } else if (match_option(option, "-Xcomp", &tail)) { | |
2519 // for testing the compiler; turn off all flags that inhibit compilation | |
2520 set_mode_flags(_comp); | |
2521 | |
2522 // -Xshare:dump | |
2523 } else if (match_option(option, "-Xshare:dump", &tail)) { | |
2524 #ifdef TIERED | |
2525 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2526 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2527 #elif defined(COMPILER2) | |
2528 vm_exit_during_initialization( | |
2529 "Dumping a shared archive is not supported on the Server JVM.", NULL); | |
2530 #elif defined(KERNEL) | |
2531 vm_exit_during_initialization( | |
2532 "Dumping a shared archive is not supported on the Kernel JVM.", NULL); | |
2533 #else | |
2534 FLAG_SET_CMDLINE(bool, DumpSharedSpaces, true); | |
2535 set_mode_flags(_int); // Prevent compilation, which creates objects | |
2536 #endif | |
2537 // -Xshare:on | |
2538 } else if (match_option(option, "-Xshare:on", &tail)) { | |
2539 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2540 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, true); | |
2541 // -Xshare:auto | |
2542 } else if (match_option(option, "-Xshare:auto", &tail)) { | |
2543 FLAG_SET_CMDLINE(bool, UseSharedSpaces, true); | |
2544 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2545 // -Xshare:off | |
2546 } else if (match_option(option, "-Xshare:off", &tail)) { | |
2547 FLAG_SET_CMDLINE(bool, UseSharedSpaces, false); | |
2548 FLAG_SET_CMDLINE(bool, RequireSharedSpaces, false); | |
2549 | |
2550 // -Xverify | |
2551 } else if (match_option(option, "-Xverify", &tail)) { | |
2552 if (strcmp(tail, ":all") == 0 || strcmp(tail, "") == 0) { | |
2553 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, true); | |
2554 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2555 } else if (strcmp(tail, ":remote") == 0) { | |
2556 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2557 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, true); | |
2558 } else if (strcmp(tail, ":none") == 0) { | |
2559 FLAG_SET_CMDLINE(bool, BytecodeVerificationLocal, false); | |
2560 FLAG_SET_CMDLINE(bool, BytecodeVerificationRemote, false); | |
2561 } else if (is_bad_option(option, args->ignoreUnrecognized, "verification")) { | |
2562 return JNI_EINVAL; | |
2563 } | |
2564 // -Xdebug | |
2565 } else if (match_option(option, "-Xdebug", &tail)) { | |
2566 // note this flag has been used, then ignore | |
2567 set_xdebug_mode(true); | |
2568 // -Xnoagent | |
2569 } else if (match_option(option, "-Xnoagent", &tail)) { | |
2570 // For compatibility with classic. HotSpot refuses to load the old style agent.dll. | |
2571 } else if (match_option(option, "-Xboundthreads", &tail)) { | |
2572 // Bind user level threads to kernel threads (Solaris only) | |
2573 FLAG_SET_CMDLINE(bool, UseBoundThreads, true); | |
2574 } else if (match_option(option, "-Xloggc:", &tail)) { | |
2575 // Redirect GC output to the file. -Xloggc:<filename> | |
2576 // ostream_init_log(), when called will use this filename | |
2577 // to initialize a fileStream. | |
2578 _gc_log_filename = strdup(tail); | |
2579 FLAG_SET_CMDLINE(bool, PrintGC, true); | |
2580 FLAG_SET_CMDLINE(bool, PrintGCTimeStamps, true); | |
2581 | |
2582 // JNI hooks | |
2583 } else if (match_option(option, "-Xcheck", &tail)) { | |
2584 if (!strcmp(tail, ":jni")) { | |
2585 CheckJNICalls = true; | |
2586 } else if (is_bad_option(option, args->ignoreUnrecognized, | |
2587 "check")) { | |
2588 return JNI_EINVAL; | |
2589 } | |
2590 } else if (match_option(option, "vfprintf", &tail)) { | |
2591 _vfprintf_hook = CAST_TO_FN_PTR(vfprintf_hook_t, option->extraInfo); | |
2592 } else if (match_option(option, "exit", &tail)) { | |
2593 _exit_hook = CAST_TO_FN_PTR(exit_hook_t, option->extraInfo); | |
2594 } else if (match_option(option, "abort", &tail)) { | |
2595 _abort_hook = CAST_TO_FN_PTR(abort_hook_t, option->extraInfo); | |
2596 // -XX:+AggressiveHeap | |
2597 } else if (match_option(option, "-XX:+AggressiveHeap", &tail)) { | |
2598 | |
2599 // This option inspects the machine and attempts to set various | |
2600 // parameters to be optimal for long-running, memory allocation | |
2601 // intensive jobs. It is intended for machines with large | |
2602 // amounts of cpu and memory. | |
2603 | |
2604 // initHeapSize is needed since _initial_heap_size is 4 bytes on a 32 bit | |
2605 // VM, but we may not be able to represent the total physical memory | |
2606 // available (like having 8gb of memory on a box but using a 32bit VM). | |
2607 // Thus, we need to make sure we're using a julong for intermediate | |
2608 // calculations. | |
2609 julong initHeapSize; | |
2610 julong total_memory = os::physical_memory(); | |
2611 | |
2612 if (total_memory < (julong)256*M) { | |
2613 jio_fprintf(defaultStream::error_stream(), | |
2614 "You need at least 256mb of memory to use -XX:+AggressiveHeap\n"); | |
2615 vm_exit(1); | |
2616 } | |
2617 | |
2618 // The heap size is half of available memory, or (at most) | |
2619 // all of possible memory less 160mb (leaving room for the OS | |
2620 // when using ISM). This is the maximum; because adaptive sizing | |
2621 // is turned on below, the actual space used may be smaller. | |
2622 | |
2623 initHeapSize = MIN2(total_memory / (julong)2, | |
2624 total_memory - (julong)160*M); | |
2625 | |
2626 // Make sure that if we have a lot of memory we cap the 32 bit | |
2627 // process space. The 64bit VM version of this function is a nop. | |
2628 initHeapSize = os::allocatable_physical_memory(initHeapSize); | |
2629 | |
2630 // The perm gen is separate but contiguous with the | |
2631 // object heap (and is reserved with it) so subtract it | |
2632 // from the heap size. | |
2633 if (initHeapSize > MaxPermSize) { | |
2634 initHeapSize = initHeapSize - MaxPermSize; | |
2635 } else { | |
2636 warning("AggressiveHeap and MaxPermSize values may conflict"); | |
2637 } | |
2638 | |
2639 if (FLAG_IS_DEFAULT(MaxHeapSize)) { | |
2640 FLAG_SET_CMDLINE(uintx, MaxHeapSize, initHeapSize); | |
1064 | 2641 FLAG_SET_CMDLINE(uintx, InitialHeapSize, initHeapSize); |
0 | 2642 // Currently the minimum size and the initial heap sizes are the same. |
1064 | 2643 set_min_heap_size(initHeapSize); |
0 | 2644 } |
2645 if (FLAG_IS_DEFAULT(NewSize)) { | |
2646 // Make the young generation 3/8ths of the total heap. | |
2647 FLAG_SET_CMDLINE(uintx, NewSize, | |
2648 ((julong)MaxHeapSize / (julong)8) * (julong)3); | |
2649 FLAG_SET_CMDLINE(uintx, MaxNewSize, NewSize); | |
2650 } | |
2651 | |
2652 FLAG_SET_DEFAULT(UseLargePages, true); | |
2653 | |
2654 // Increase some data structure sizes for efficiency | |
2655 FLAG_SET_CMDLINE(uintx, BaseFootPrintEstimate, MaxHeapSize); | |
2656 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2657 FLAG_SET_CMDLINE(uintx, TLABSize, 256*K); | |
2658 | |
2659 // See the OldPLABSize comment below, but replace 'after promotion' | |
2660 // with 'after copying'. YoungPLABSize is the size of the survivor | |
2661 // space per-gc-thread buffers. The default is 4kw. | |
2662 FLAG_SET_CMDLINE(uintx, YoungPLABSize, 256*K); // Note: this is in words | |
2663 | |
2664 // OldPLABSize is the size of the buffers in the old gen that | |
2665 // UseParallelGC uses to promote live data that doesn't fit in the | |
2666 // survivor spaces. At any given time, there's one for each gc thread. | |
2667 // The default size is 1kw. These buffers are rarely used, since the | |
2668 // survivor spaces are usually big enough. For specjbb, however, there | |
2669 // are occasions when there's lots of live data in the young gen | |
2670 // and we end up promoting some of it. We don't have a definite | |
2671 // explanation for why bumping OldPLABSize helps, but the theory | |
2672 // is that a bigger PLAB results in retaining something like the | |
2673 // original allocation order after promotion, which improves mutator | |
2674 // locality. A minor effect may be that larger PLABs reduce the | |
2675 // number of PLAB allocation events during gc. The value of 8kw | |
2676 // was arrived at by experimenting with specjbb. | |
2677 FLAG_SET_CMDLINE(uintx, OldPLABSize, 8*K); // Note: this is in words | |
2678 | |
2679 // Enable parallel GC and adaptive generation sizing | |
2680 FLAG_SET_CMDLINE(bool, UseParallelGC, true); | |
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2681 FLAG_SET_DEFAULT(ParallelGCThreads, |
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2682 Abstract_VM_Version::parallel_worker_threads()); |
0 | 2683 |
2684 // Encourage steady state memory management | |
2685 FLAG_SET_CMDLINE(uintx, ThresholdTolerance, 100); | |
2686 | |
2687 // This appears to improve mutator locality | |
2688 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2689 | |
2690 // Get around early Solaris scheduling bug | |
2691 // (affinity vs other jobs on system) | |
2692 // but disallow DR and offlining (5008695). | |
2693 FLAG_SET_CMDLINE(bool, BindGCTaskThreadsToCPUs, true); | |
2694 | |
2695 } else if (match_option(option, "-XX:+NeverTenure", &tail)) { | |
2696 // The last option must always win. | |
2697 FLAG_SET_CMDLINE(bool, AlwaysTenure, false); | |
2698 FLAG_SET_CMDLINE(bool, NeverTenure, true); | |
2699 } else if (match_option(option, "-XX:+AlwaysTenure", &tail)) { | |
2700 // The last option must always win. | |
2701 FLAG_SET_CMDLINE(bool, NeverTenure, false); | |
2702 FLAG_SET_CMDLINE(bool, AlwaysTenure, true); | |
2703 } else if (match_option(option, "-XX:+CMSPermGenSweepingEnabled", &tail) || | |
2704 match_option(option, "-XX:-CMSPermGenSweepingEnabled", &tail)) { | |
2705 jio_fprintf(defaultStream::error_stream(), | |
2706 "Please use CMSClassUnloadingEnabled in place of " | |
2707 "CMSPermGenSweepingEnabled in the future\n"); | |
2708 } else if (match_option(option, "-XX:+UseGCTimeLimit", &tail)) { | |
2709 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, true); | |
2710 jio_fprintf(defaultStream::error_stream(), | |
2711 "Please use -XX:+UseGCOverheadLimit in place of " | |
2712 "-XX:+UseGCTimeLimit in the future\n"); | |
2713 } else if (match_option(option, "-XX:-UseGCTimeLimit", &tail)) { | |
2714 FLAG_SET_CMDLINE(bool, UseGCOverheadLimit, false); | |
2715 jio_fprintf(defaultStream::error_stream(), | |
2716 "Please use -XX:-UseGCOverheadLimit in place of " | |
2717 "-XX:-UseGCTimeLimit in the future\n"); | |
2718 // The TLE options are for compatibility with 1.3 and will be | |
2719 // removed without notice in a future release. These options | |
2720 // are not to be documented. | |
2721 } else if (match_option(option, "-XX:MaxTLERatio=", &tail)) { | |
2722 // No longer used. | |
2723 } else if (match_option(option, "-XX:+ResizeTLE", &tail)) { | |
2724 FLAG_SET_CMDLINE(bool, ResizeTLAB, true); | |
2725 } else if (match_option(option, "-XX:-ResizeTLE", &tail)) { | |
2726 FLAG_SET_CMDLINE(bool, ResizeTLAB, false); | |
2727 } else if (match_option(option, "-XX:+PrintTLE", &tail)) { | |
2728 FLAG_SET_CMDLINE(bool, PrintTLAB, true); | |
2729 } else if (match_option(option, "-XX:-PrintTLE", &tail)) { | |
2730 FLAG_SET_CMDLINE(bool, PrintTLAB, false); | |
2731 } else if (match_option(option, "-XX:TLEFragmentationRatio=", &tail)) { | |
2732 // No longer used. | |
2733 } else if (match_option(option, "-XX:TLESize=", &tail)) { | |
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2734 julong long_tlab_size = 0; |
0 | 2735 ArgsRange errcode = parse_memory_size(tail, &long_tlab_size, 1); |
2736 if (errcode != arg_in_range) { | |
2737 jio_fprintf(defaultStream::error_stream(), | |
2738 "Invalid TLAB size: %s\n", option->optionString); | |
2739 describe_range_error(errcode); | |
2740 return JNI_EINVAL; | |
2741 } | |
2742 FLAG_SET_CMDLINE(uintx, TLABSize, long_tlab_size); | |
2743 } else if (match_option(option, "-XX:TLEThreadRatio=", &tail)) { | |
2744 // No longer used. | |
2745 } else if (match_option(option, "-XX:+UseTLE", &tail)) { | |
2746 FLAG_SET_CMDLINE(bool, UseTLAB, true); | |
2747 } else if (match_option(option, "-XX:-UseTLE", &tail)) { | |
2748 FLAG_SET_CMDLINE(bool, UseTLAB, false); | |
2749 SOLARIS_ONLY( | |
2750 } else if (match_option(option, "-XX:+UsePermISM", &tail)) { | |
2751 warning("-XX:+UsePermISM is obsolete."); | |
2752 FLAG_SET_CMDLINE(bool, UseISM, true); | |
2753 } else if (match_option(option, "-XX:-UsePermISM", &tail)) { | |
2754 FLAG_SET_CMDLINE(bool, UseISM, false); | |
2755 ) | |
2756 } else if (match_option(option, "-XX:+DisplayVMOutputToStderr", &tail)) { | |
2757 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, false); | |
2758 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, true); | |
2759 } else if (match_option(option, "-XX:+DisplayVMOutputToStdout", &tail)) { | |
2760 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStderr, false); | |
2761 FLAG_SET_CMDLINE(bool, DisplayVMOutputToStdout, true); | |
2762 } else if (match_option(option, "-XX:+ExtendedDTraceProbes", &tail)) { | |
4006 | 2763 #if defined(DTRACE_ENABLED) |
0 | 2764 FLAG_SET_CMDLINE(bool, ExtendedDTraceProbes, true); |
2765 FLAG_SET_CMDLINE(bool, DTraceMethodProbes, true); | |
2766 FLAG_SET_CMDLINE(bool, DTraceAllocProbes, true); | |
2767 FLAG_SET_CMDLINE(bool, DTraceMonitorProbes, true); | |
4006 | 2768 #else // defined(DTRACE_ENABLED) |
0 | 2769 jio_fprintf(defaultStream::error_stream(), |
4006 | 2770 "ExtendedDTraceProbes flag is not applicable for this configuration\n"); |
0 | 2771 return JNI_EINVAL; |
4006 | 2772 #endif // defined(DTRACE_ENABLED) |
0 | 2773 #ifdef ASSERT |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2774 } else if (match_option(option, "-XX:+FullGCALot", &tail)) { |
0 | 2775 FLAG_SET_CMDLINE(bool, FullGCALot, true); |
2776 // disable scavenge before parallel mark-compact | |
2777 FLAG_SET_CMDLINE(bool, ScavengeBeforeFullGC, false); | |
2778 #endif | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2779 } else if (match_option(option, "-XX:CMSParPromoteBlocksToClaim=", &tail)) { |
0 | 2780 julong cms_blocks_to_claim = (julong)atol(tail); |
2781 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); | |
2782 jio_fprintf(defaultStream::error_stream(), | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2783 "Please use -XX:OldPLABSize in place of " |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2784 "-XX:CMSParPromoteBlocksToClaim in the future\n"); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2785 } else if (match_option(option, "-XX:ParCMSPromoteBlocksToClaim=", &tail)) { |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2786 julong cms_blocks_to_claim = (julong)atol(tail); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2787 FLAG_SET_CMDLINE(uintx, CMSParPromoteBlocksToClaim, cms_blocks_to_claim); |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2788 jio_fprintf(defaultStream::error_stream(), |
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2789 "Please use -XX:OldPLABSize in place of " |
0 | 2790 "-XX:ParCMSPromoteBlocksToClaim in the future\n"); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2791 } else if (match_option(option, "-XX:ParallelGCOldGenAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2792 julong old_plab_size = 0; |
0 | 2793 ArgsRange errcode = parse_memory_size(tail, &old_plab_size, 1); |
2794 if (errcode != arg_in_range) { | |
2795 jio_fprintf(defaultStream::error_stream(), | |
2796 "Invalid old PLAB size: %s\n", option->optionString); | |
2797 describe_range_error(errcode); | |
2798 return JNI_EINVAL; | |
2799 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2800 FLAG_SET_CMDLINE(uintx, OldPLABSize, old_plab_size); |
0 | 2801 jio_fprintf(defaultStream::error_stream(), |
2802 "Please use -XX:OldPLABSize in place of " | |
2803 "-XX:ParallelGCOldGenAllocBufferSize in the future\n"); | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2804 } else if (match_option(option, "-XX:ParallelGCToSpaceAllocBufferSize=", &tail)) { |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2805 julong young_plab_size = 0; |
0 | 2806 ArgsRange errcode = parse_memory_size(tail, &young_plab_size, 1); |
2807 if (errcode != arg_in_range) { | |
2808 jio_fprintf(defaultStream::error_stream(), | |
2809 "Invalid young PLAB size: %s\n", option->optionString); | |
2810 describe_range_error(errcode); | |
2811 return JNI_EINVAL; | |
2812 } | |
489
2494ab195856
6653214: MemoryPoolMXBean.setUsageThreshold() does not support large heap sizes.
swamyv
parents:
483
diff
changeset
|
2813 FLAG_SET_CMDLINE(uintx, YoungPLABSize, young_plab_size); |
0 | 2814 jio_fprintf(defaultStream::error_stream(), |
2815 "Please use -XX:YoungPLABSize in place of " | |
2816 "-XX:ParallelGCToSpaceAllocBufferSize in the future\n"); | |
1284 | 2817 } else if (match_option(option, "-XX:CMSMarkStackSize=", &tail) || |
2818 match_option(option, "-XX:G1MarkStackSize=", &tail)) { | |
2819 julong stack_size = 0; | |
2820 ArgsRange errcode = parse_memory_size(tail, &stack_size, 1); | |
2821 if (errcode != arg_in_range) { | |
2822 jio_fprintf(defaultStream::error_stream(), | |
2823 "Invalid mark stack size: %s\n", option->optionString); | |
2824 describe_range_error(errcode); | |
2825 return JNI_EINVAL; | |
2826 } | |
2827 FLAG_SET_CMDLINE(uintx, MarkStackSize, stack_size); | |
2828 } else if (match_option(option, "-XX:CMSMarkStackSizeMax=", &tail)) { | |
2829 julong max_stack_size = 0; | |
2830 ArgsRange errcode = parse_memory_size(tail, &max_stack_size, 1); | |
2831 if (errcode != arg_in_range) { | |
2832 jio_fprintf(defaultStream::error_stream(), | |
2833 "Invalid maximum mark stack size: %s\n", | |
2834 option->optionString); | |
2835 describe_range_error(errcode); | |
2836 return JNI_EINVAL; | |
2837 } | |
2838 FLAG_SET_CMDLINE(uintx, MarkStackSizeMax, max_stack_size); | |
2839 } else if (match_option(option, "-XX:ParallelMarkingThreads=", &tail) || | |
2840 match_option(option, "-XX:ParallelCMSThreads=", &tail)) { | |
2841 uintx conc_threads = 0; | |
2842 if (!parse_uintx(tail, &conc_threads, 1)) { | |
2843 jio_fprintf(defaultStream::error_stream(), | |
2844 "Invalid concurrent threads: %s\n", option->optionString); | |
2845 return JNI_EINVAL; | |
2846 } | |
2847 FLAG_SET_CMDLINE(uintx, ConcGCThreads, conc_threads); | |
6199
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2848 } else if (match_option(option, "-XX:MaxDirectMemorySize=", &tail)) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2849 julong max_direct_memory_size = 0; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2850 ArgsRange errcode = parse_memory_size(tail, &max_direct_memory_size, 0); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2851 if (errcode != arg_in_range) { |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2852 jio_fprintf(defaultStream::error_stream(), |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2853 "Invalid maximum direct memory size: %s\n", |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2854 option->optionString); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2855 describe_range_error(errcode); |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2856 return JNI_EINVAL; |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2857 } |
3f1ab0c19c30
7179383: MaxDirectMemorySize argument parsing is broken for values >2G
dholmes
parents:
6198
diff
changeset
|
2858 FLAG_SET_CMDLINE(uintx, MaxDirectMemorySize, max_direct_memory_size); |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
2859 } else if (match_option(option, "-XX:", &tail)) { // -XX:xxxx |
0 | 2860 // Skip -XX:Flags= since that case has already been handled |
2861 if (strncmp(tail, "Flags=", strlen("Flags=")) != 0) { | |
2862 if (!process_argument(tail, args->ignoreUnrecognized, origin)) { | |
2863 return JNI_EINVAL; | |
2864 } | |
2865 } | |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2866 } |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2867 #ifdef GRAAL |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2868 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
|
2869 // 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
|
2870 if (PrintVMOptions) { |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2871 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
|
2872 } |
2891
75a99b4f1c98
Rebranded C++ part from C1X to Graal.
Thomas Wuerthinger <thomas@wuerthinger.net>
parents:
2873
diff
changeset
|
2873 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
|
2874 |
0 | 2875 // Unknown option |
4559
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2876 } |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2877 #endif |
723df37192d6
Make it possible again to build a real client libjvm, drop the UseGraal flag.
Gilles Duboscq <duboscq@ssw.jku.at>
parents:
4350
diff
changeset
|
2878 else if (is_bad_option(option, args->ignoreUnrecognized)) { |
0 | 2879 return JNI_ERR; |
2880 } | |
2881 } | |
3767
2a241e764894
6941923: RFE: Handling large log files produced by long running Java Applications
minqi
parents:
3349
diff
changeset
|
2882 |
449
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2883 // 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
|
2884 // when working with older JDKs. |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2885 if (JDK_Version::current().compare_major(6) <= 0 && |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2886 FLAG_IS_DEFAULT(UseVMInterruptibleIO)) { |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2887 FLAG_SET_DEFAULT(UseVMInterruptibleIO, true); |
171e581e8161
6554406: Change switch UseVMInterruptibleIO default to false (sol)
xlu
parents:
420
diff
changeset
|
2888 } |
1679
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2889 #ifdef LINUX |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2890 if (JDK_Version::current().compare_major(6) <= 0 && |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2891 FLAG_IS_DEFAULT(UseLinuxPosixThreadCPUClocks)) { |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2892 FLAG_SET_DEFAULT(UseLinuxPosixThreadCPUClocks, false); |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2893 } |
3d90023429ec
6888526: Linux getCurrentThreadCpuTime is drastically slower than Windows
aph
parents:
1628
diff
changeset
|
2894 #endif // LINUX |
0 | 2895 return JNI_OK; |
2896 } | |
2897 | |
2898 jint Arguments::finalize_vm_init_args(SysClassPath* scp_p, bool scp_assembly_required) { | |
2899 // This must be done after all -D arguments have been processed. | |
2900 scp_p->expand_endorsed(); | |
2901 | |
2902 if (scp_assembly_required || scp_p->get_endorsed() != NULL) { | |
2903 // Assemble the bootclasspath elements into the final path. | |
2904 Arguments::set_sysclasspath(scp_p->combined_path()); | |
2905 } | |
2906 | |
2907 // This must be done after all arguments have been processed. | |
2908 // java_compiler() true means set to "NONE" or empty. | |
2909 if (java_compiler() && !xdebug_mode()) { | |
2910 // For backwards compatibility, we switch to interpreted mode if | |
2911 // -Djava.compiler="NONE" or "" is specified AND "-Xdebug" was | |
2912 // not specified. | |
2913 set_mode_flags(_int); | |
2914 } | |
2915 if (CompileThreshold == 0) { | |
2916 set_mode_flags(_int); | |
2917 } | |
2918 | |
2919 #ifndef COMPILER2 | |
2920 // Don't degrade server performance for footprint | |
2921 if (FLAG_IS_DEFAULT(UseLargePages) && | |
2922 MaxHeapSize < LargePageHeapSizeThreshold) { | |
2923 // No need for large granularity pages w/small heaps. | |
2924 // Note that large pages are enabled/disabled for both the | |
2925 // Java heap and the code cache. | |
2926 FLAG_SET_DEFAULT(UseLargePages, false); | |
2927 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseMPSS, false)); | |
2928 SOLARIS_ONLY(FLAG_SET_DEFAULT(UseISM, false)); | |
2929 } | |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
2930 |
1251
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2931 // Tiered compilation is undefined with C1. |
576e77447e3c
6923002: assert(false,"this call site should not be polymorphic")
kvn
parents:
1188
diff
changeset
|
2932 TieredCompilation = false; |
0 | 2933 #else |
2934 if (!FLAG_IS_DEFAULT(OptoLoopAlignment) && FLAG_IS_DEFAULT(MaxLoopPad)) { | |
2935 FLAG_SET_DEFAULT(MaxLoopPad, OptoLoopAlignment-1); | |
2936 } | |
2937 #endif | |
2938 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2939 // 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
|
2940 // to be true unless the property has already been set. |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2941 // 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
|
2942 if (os::is_headless_jre()) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2943 const char* headless = Arguments::get_property("java.awt.headless"); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2944 if (headless == NULL) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2945 char envbuffer[128]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2946 if (!os::getenv("JAVA_AWT_HEADLESS", envbuffer, sizeof(envbuffer))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2947 if (!add_property("java.awt.headless=true")) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2948 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2949 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2950 } else { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2951 char buffer[256]; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2952 strcpy(buffer, "java.awt.headless="); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2953 strcat(buffer, envbuffer); |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2954 if (!add_property(buffer)) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2955 return JNI_ENOMEM; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2956 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2957 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2958 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2959 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
2960 |
0 | 2961 if (!check_vm_args_consistency()) { |
2962 return JNI_ERR; | |
2963 } | |
2964 | |
2965 return JNI_OK; | |
2966 } | |
2967 | |
2968 jint Arguments::parse_java_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
2969 return parse_options_environment_variable("_JAVA_OPTIONS", scp_p, | |
2970 scp_assembly_required_p); | |
2971 } | |
2972 | |
2973 jint Arguments::parse_java_tool_options_environment_variable(SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
2974 return parse_options_environment_variable("JAVA_TOOL_OPTIONS", scp_p, | |
2975 scp_assembly_required_p); | |
2976 } | |
2977 | |
2978 jint Arguments::parse_options_environment_variable(const char* name, SysClassPath* scp_p, bool* scp_assembly_required_p) { | |
2979 const int N_MAX_OPTIONS = 64; | |
2980 const int OPTION_BUFFER_SIZE = 1024; | |
2981 char buffer[OPTION_BUFFER_SIZE]; | |
2982 | |
2983 // The variable will be ignored if it exceeds the length of the buffer. | |
2984 // Don't check this variable if user has special privileges | |
2985 // (e.g. unix su command). | |
2986 if (os::getenv(name, buffer, sizeof(buffer)) && | |
2987 !os::have_special_privileges()) { | |
2988 JavaVMOption options[N_MAX_OPTIONS]; // Construct option array | |
2989 jio_fprintf(defaultStream::error_stream(), | |
2990 "Picked up %s: %s\n", name, buffer); | |
2991 char* rd = buffer; // pointer to the input string (rd) | |
2992 int i; | |
2993 for (i = 0; i < N_MAX_OPTIONS;) { // repeat for all options in the input string | |
2994 while (isspace(*rd)) rd++; // skip whitespace | |
2995 if (*rd == 0) break; // we re done when the input string is read completely | |
2996 | |
2997 // The output, option string, overwrites the input string. | |
2998 // Because of quoting, the pointer to the option string (wrt) may lag the pointer to | |
2999 // input string (rd). | |
3000 char* wrt = rd; | |
3001 | |
3002 options[i++].optionString = wrt; // Fill in option | |
3003 while (*rd != 0 && !isspace(*rd)) { // unquoted strings terminate with a space or NULL | |
3004 if (*rd == '\'' || *rd == '"') { // handle a quoted string | |
3005 int quote = *rd; // matching quote to look for | |
3006 rd++; // don't copy open quote | |
3007 while (*rd != quote) { // include everything (even spaces) up until quote | |
3008 if (*rd == 0) { // string termination means unmatched string | |
3009 jio_fprintf(defaultStream::error_stream(), | |
3010 "Unmatched quote in %s\n", name); | |
3011 return JNI_ERR; | |
3012 } | |
3013 *wrt++ = *rd++; // copy to option string | |
3014 } | |
3015 rd++; // don't copy close quote | |
3016 } else { | |
3017 *wrt++ = *rd++; // copy to option string | |
3018 } | |
3019 } | |
3020 // Need to check if we're done before writing a NULL, | |
3021 // because the write could be to the byte that rd is pointing to. | |
3022 if (*rd++ == 0) { | |
3023 *wrt = 0; | |
3024 break; | |
3025 } | |
3026 *wrt = 0; // Zero terminate option | |
3027 } | |
3028 // Construct JavaVMInitArgs structure and parse as if it was part of the command line | |
3029 JavaVMInitArgs vm_args; | |
3030 vm_args.version = JNI_VERSION_1_2; | |
3031 vm_args.options = options; | |
3032 vm_args.nOptions = i; | |
564 | 3033 vm_args.ignoreUnrecognized = IgnoreUnrecognizedVMOptions; |
0 | 3034 |
3035 if (PrintVMOptions) { | |
3036 const char* tail; | |
3037 for (int i = 0; i < vm_args.nOptions; i++) { | |
3038 const JavaVMOption *option = vm_args.options + i; | |
3039 if (match_option(option, "-XX:", &tail)) { | |
3040 logOption(tail); | |
3041 } | |
3042 } | |
3043 } | |
3044 | |
3045 return(parse_each_vm_init_arg(&vm_args, scp_p, scp_assembly_required_p, ENVIRON_VAR)); | |
3046 } | |
3047 return JNI_OK; | |
3048 } | |
3049 | |
2362
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3050 void Arguments::set_shared_spaces_flags() { |
2378 | 3051 const bool must_share = DumpSharedSpaces || RequireSharedSpaces; |
3052 const bool might_share = must_share || UseSharedSpaces; | |
3053 | |
3054 // The string table is part of the shared archive so the size must match. | |
3055 if (!FLAG_IS_DEFAULT(StringTableSize)) { | |
3056 // Disable sharing. | |
3057 if (must_share) { | |
3058 warning("disabling shared archive %s because of non-default " | |
3059 "StringTableSize", DumpSharedSpaces ? "creation" : "use"); | |
3060 } | |
3061 if (might_share) { | |
3062 FLAG_SET_DEFAULT(DumpSharedSpaces, false); | |
3063 FLAG_SET_DEFAULT(RequireSharedSpaces, false); | |
3064 FLAG_SET_DEFAULT(UseSharedSpaces, false); | |
3065 } | |
3066 return; | |
3067 } | |
3068 | |
2362
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3069 // Check whether class data sharing settings conflict with GC, compressed oops |
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3070 // or page size, and fix them up. Explicit sharing options override other |
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3071 // settings. |
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3072 const bool cannot_share = UseConcMarkSweepGC || CMSIncrementalMode || |
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3073 UseG1GC || UseParNewGC || UseParallelGC || UseParallelOldGC || |
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3074 UseCompressedOops || UseLargePages && FLAG_IS_CMDLINE(UseLargePages); |
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3075 if (cannot_share) { |
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3076 if (must_share) { |
2378 | 3077 warning("selecting serial gc and disabling large pages %s" |
3078 "because of %s", "" LP64_ONLY("and compressed oops "), | |
3079 DumpSharedSpaces ? "-Xshare:dump" : "-Xshare:on"); | |
3080 force_serial_gc(); | |
3081 FLAG_SET_CMDLINE(bool, UseLargePages, false); | |
3082 LP64_ONLY(FLAG_SET_CMDLINE(bool, UseCompressedOops, false)); | |
2362
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3083 } else { |
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3084 if (UseSharedSpaces && Verbose) { |
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3085 warning("turning off use of shared archive because of " |
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|
3086 "choice of garbage collector or large pages"); |
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|
3087 } |
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3088 no_shared_spaces(); |
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|
3089 } |
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3090 } else if (UseLargePages && might_share) { |
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3091 // Disable large pages to allow shared spaces. This is sub-optimal, since |
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3092 // there may not even be a shared archive to use. |
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3093 FLAG_SET_DEFAULT(UseLargePages, false); |
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|
3094 } |
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3095 } |
1891
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3096 |
3797
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3097 // Disable options not supported in this release, with a warning if they |
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3098 // were explicitly requested on the command-line |
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3099 #define UNSUPPORTED_OPTION(opt, description) \ |
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3100 do { \ |
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3101 if (opt) { \ |
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3102 if (FLAG_IS_CMDLINE(opt)) { \ |
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3103 warning(description " is disabled in this release."); \ |
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|
3104 } \ |
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3105 FLAG_SET_DEFAULT(opt, false); \ |
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3106 } \ |
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3107 } while(0) |
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3108 |
0 | 3109 // Parse entry point called from JNI_CreateJavaVM |
3110 | |
3111 jint Arguments::parse(const JavaVMInitArgs* args) { | |
3112 | |
3113 // Sharing support | |
3114 // Construct the path to the archive | |
3115 char jvm_path[JVM_MAXPATHLEN]; | |
3116 os::jvm_path(jvm_path, sizeof(jvm_path)); | |
3117 char *end = strrchr(jvm_path, *os::file_separator()); | |
3118 if (end != NULL) *end = '\0'; | |
3119 char *shared_archive_path = NEW_C_HEAP_ARRAY(char, strlen(jvm_path) + | |
6197 | 3120 strlen(os::file_separator()) + 20, mtInternal); |
0 | 3121 if (shared_archive_path == NULL) return JNI_ENOMEM; |
3122 strcpy(shared_archive_path, jvm_path); | |
3123 strcat(shared_archive_path, os::file_separator()); | |
3124 strcat(shared_archive_path, "classes"); | |
3125 DEBUG_ONLY(strcat(shared_archive_path, "_g");) | |
3126 strcat(shared_archive_path, ".jsa"); | |
3127 SharedArchivePath = shared_archive_path; | |
3128 | |
3129 // Remaining part of option string | |
3130 const char* tail; | |
3131 | |
3132 // If flag "-XX:Flags=flags-file" is used it will be the first option to be processed. | |
6196
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3133 const char* hotspotrc = ".hotspotrc"; |
0 | 3134 bool settings_file_specified = false; |
6196
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3135 bool needs_hotspotrc_warning = false; |
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3136 |
564 | 3137 const char* flags_file; |
0 | 3138 int index; |
3139 for (index = 0; index < args->nOptions; index++) { | |
3140 const JavaVMOption *option = args->options + index; | |
3141 if (match_option(option, "-XX:Flags=", &tail)) { | |
564 | 3142 flags_file = tail; |
0 | 3143 settings_file_specified = true; |
3144 } | |
3145 if (match_option(option, "-XX:+PrintVMOptions", &tail)) { | |
3146 PrintVMOptions = true; | |
3147 } | |
253
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|
3148 if (match_option(option, "-XX:-PrintVMOptions", &tail)) { |
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3149 PrintVMOptions = false; |
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3150 } |
564 | 3151 if (match_option(option, "-XX:+IgnoreUnrecognizedVMOptions", &tail)) { |
3152 IgnoreUnrecognizedVMOptions = true; | |
3153 } | |
3154 if (match_option(option, "-XX:-IgnoreUnrecognizedVMOptions", &tail)) { | |
3155 IgnoreUnrecognizedVMOptions = false; | |
3156 } | |
1150 | 3157 if (match_option(option, "-XX:+PrintFlagsInitial", &tail)) { |
4773 | 3158 CommandLineFlags::printFlags(tty, false); |
1150 | 3159 vm_exit(0); |
3160 } | |
6197 | 3161 if (match_option(option, "-XX:NativeMemoryTracking", &tail)) { |
3162 MemTracker::init_tracking_options(tail); | |
3163 } | |
3164 | |
1768
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|
3165 |
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3166 #ifndef PRODUCT |
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3167 if (match_option(option, "-XX:+PrintFlagsWithComments", &tail)) { |
4773 | 3168 CommandLineFlags::printFlags(tty, true); |
1768
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3169 vm_exit(0); |
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|
3170 } |
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|
3171 #endif |
564 | 3172 } |
3173 | |
3174 if (IgnoreUnrecognizedVMOptions) { | |
3175 // uncast const to modify the flag args->ignoreUnrecognized | |
3176 *(jboolean*)(&args->ignoreUnrecognized) = true; | |
3177 } | |
3178 | |
3179 // Parse specified settings file | |
3180 if (settings_file_specified) { | |
3181 if (!process_settings_file(flags_file, true, args->ignoreUnrecognized)) { | |
3182 return JNI_EINVAL; | |
3183 } | |
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3184 } else { |
6150
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3185 #ifdef ASSERT |
6196
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3186 // Parse default .hotspotrc settings file |
0 | 3187 if (!process_settings_file(".hotspotrc", false, args->ignoreUnrecognized)) { |
3188 return JNI_EINVAL; | |
3189 } | |
6196
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3190 #else |
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3191 struct stat buf; |
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3192 if (os::stat(hotspotrc, &buf) == 0) { |
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3193 needs_hotspotrc_warning = true; |
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3194 } |
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|
3195 #endif |
0 | 3196 } |
3197 | |
3198 if (PrintVMOptions) { | |
3199 for (index = 0; index < args->nOptions; index++) { | |
3200 const JavaVMOption *option = args->options + index; | |
3201 if (match_option(option, "-XX:", &tail)) { | |
3202 logOption(tail); | |
3203 } | |
3204 } | |
3205 } | |
3206 | |
3207 // Parse JavaVMInitArgs structure passed in, as well as JAVA_TOOL_OPTIONS and _JAVA_OPTIONS | |
3208 jint result = parse_vm_init_args(args); | |
3209 if (result != JNI_OK) { | |
3210 return result; | |
3211 } | |
3212 | |
6196
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3213 // Delay warning until here so that we've had a chance to process |
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3214 // the -XX:-PrintWarnings flag |
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3215 if (needs_hotspotrc_warning) { |
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3216 warning("%s file is present but has been ignored. " |
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3217 "Run with -XX:Flags=%s to load the file.", |
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3218 hotspotrc, hotspotrc); |
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|
3219 } |
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|
3220 |
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|
3221 #if (defined JAVASE_EMBEDDED || defined ARM) |
3797
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3222 UNSUPPORTED_OPTION(UseG1GC, "G1 GC"); |
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|
3223 #endif |
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|
3224 |
0 | 3225 #ifndef PRODUCT |
3226 if (TraceBytecodesAt != 0) { | |
3227 TraceBytecodes = true; | |
3228 } | |
3229 if (CountCompiledCalls) { | |
3230 if (UseCounterDecay) { | |
3231 warning("UseCounterDecay disabled because CountCalls is set"); | |
3232 UseCounterDecay = false; | |
3233 } | |
3234 } | |
3235 #endif // PRODUCT | |
3236 | |
2416
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6817525: turn on method handle functionality by default for JSR 292
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|
3237 // JSR 292 is not supported before 1.7 |
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6817525: turn on method handle functionality by default for JSR 292
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|
3238 if (!JDK_Version::is_gte_jdk17x_version()) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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2378
diff
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|
3239 if (EnableInvokeDynamic) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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|
3240 if (!FLAG_IS_DEFAULT(EnableInvokeDynamic)) { |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
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changeset
|
3241 warning("JSR 292 is not supported before 1.7. Disabling support."); |
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
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changeset
|
3242 } |
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6817525: turn on method handle functionality by default for JSR 292
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|
3243 EnableInvokeDynamic = false; |
710 | 3244 } |
3245 } | |
2416
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|
3246 |
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|
3247 if (EnableInvokeDynamic && ScavengeRootsInCode == 0) { |
989
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
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diff
changeset
|
3248 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
2416
38fea01eb669
6817525: turn on method handle functionality by default for JSR 292
twisti
parents:
2378
diff
changeset
|
3249 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
|
3250 } |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3251 ScavengeRootsInCode = 1; |
148e5441d916
6863023: need non-perm oops in code cache for JSR 292
jrose
parents:
932
diff
changeset
|
3252 } |
2376
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3253 if (!JavaObjectsInPerm && ScavengeRootsInCode == 0) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3254 if (!FLAG_IS_DEFAULT(ScavengeRootsInCode)) { |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3255 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
|
3256 } |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3257 ScavengeRootsInCode = 1; |
c7f3d0b4570f
7017732: move static fields into Class to prepare for perm gen removal
never
parents:
2370
diff
changeset
|
3258 } |
710 | 3259 |
0 | 3260 if (PrintGCDetails) { |
3261 // Turn on -verbose:gc options as well | |
3262 PrintGC = true; | |
3263 } | |
3264 | |
6064
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3265 if (!JDK_Version::is_gte_jdk18x_version()) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3266 // To avoid changing the log format for 7 updates this flag is only |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3267 // true by default in JDK8 and above. |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3268 if (FLAG_IS_DEFAULT(PrintGCCause)) { |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3269 FLAG_SET_DEFAULT(PrintGCCause, false); |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3270 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3271 } |
9d679effd28c
7166894: Add gc cause to GC logging for all collectors
brutisso
parents:
6017
diff
changeset
|
3272 |
1571
2d127394260e
6916623: Align object to 16 bytes to use Compressed Oops with java heap up to 64Gb
kvn
parents:
1506
diff
changeset
|
3273 // 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
|
3274 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
|
3275 |
0 | 3276 #ifdef SERIALGC |
1064 | 3277 force_serial_gc(); |
0 | 3278 #endif // SERIALGC |
3279 #ifdef KERNEL | |
3280 no_shared_spaces(); | |
3281 #endif // KERNEL | |
3282 | |
3283 // Set flags based on ergonomics. | |
3284 set_ergonomics_flags(); | |
3285 | |
2362
a2c2eac1ca62
7018056: large pages not always enabled by default
jcoomes
parents:
2302
diff
changeset
|
3286 set_shared_spaces_flags(); |
1135
e66fd840cb6b
6893081: method handle & invokedynamic code needs additional cleanup (post 6815692, 6858164)
twisti
parents:
1131
diff
changeset
|
3287 |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3288 // Check the GC selections again. |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3289 if (!check_gc_consistency()) { |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3290 return JNI_EINVAL; |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3291 } |
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3292 |
1783 | 3293 if (TieredCompilation) { |
3294 set_tiered_flags(); | |
3295 } else { | |
3296 // Check if the policy is valid. Policies 0 and 1 are valid for non-tiered setup. | |
5176
af59b4dfc9e4
compilation queue changes:
Lukas Stadler <lukas.stadler@jku.at>
parents:
5152
diff
changeset
|
3297 if (CompilationPolicyChoice >= 2 && CompilationPolicyChoice < 4) { |
1783 | 3298 vm_exit_during_initialization( |
3299 "Incompatible compilation policy selected", NULL); | |
3300 } | |
3301 } | |
3302 | |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3303 #ifndef KERNEL |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3304 // Set heap size based on available physical memory |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3305 set_heap_size(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3306 // Set per-collector flags |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3307 if (UseParallelGC || UseParallelOldGC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3308 set_parallel_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3309 } 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
|
3310 set_cms_and_parnew_gc_flags(); |
2368
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3311 } 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
|
3312 set_parnew_gc_flags(); |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3313 } else if (UseG1GC) { |
dde920245681
6896099: Integrate CMS heap ergo with default heap sizing ergo
ysr
parents:
2366
diff
changeset
|
3314 set_g1_gc_flags(); |
342
37f87013dfd8
6711316: Open source the Garbage-First garbage collector
ysr
parents:
135
diff
changeset
|
3315 } |
1145
e018e6884bd8
6631166: CMS: better heuristics when combatting fragmentation
ysr
parents:
1074
diff
changeset
|
3316 #endif // KERNEL |
10
28372612af5e
6362677: Change parallel GC collector default number of parallel GC threads.
jmasa
parents:
0
diff
changeset
|
3317 |
0 | 3318 #ifdef SERIALGC |
3319 assert(verify_serial_gc_flags(), "SerialGC unset"); | |
3320 #endif // SERIALGC | |
3321 | |
3322 // Set bytecode rewriting flags | |
3323 set_bytecode_flags(); | |
3324 | |
3325 // Set flags if Aggressive optimization flags (-XX:+AggressiveOpts) enabled. | |
3326 set_aggressive_opts_flags(); | |
3327 | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3328 // Turn off biased locking for locking debug mode flags, |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3329 // 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
|
3330 // biased locking. |
2331 | 3331 if (UseHeavyMonitors |
3332 #ifdef COMPILER1 | |
3333 || !UseFastLocking | |
3334 #endif // COMPILER1 | |
3335 ) { | |
2239
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3336 if (!FLAG_IS_DEFAULT(UseBiasedLocking) && UseBiasedLocking) { |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3337 // 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
|
3338 // can't enable biased locking here |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3339 warning("Biased Locking is not supported with locking debug flags" |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3340 "; ignoring UseBiasedLocking flag." ); |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3341 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3342 UseBiasedLocking = false; |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3343 } |
c08677f98289
6840152: JVM crashes when heavyweight monitors are used
coleenp
parents:
2176
diff
changeset
|
3344 |
0 | 3345 #ifdef CC_INTERP |
1131 | 3346 // Clear flags not supported by the C++ interpreter |
3347 FLAG_SET_DEFAULT(ProfileInterpreter, false); | |
0 | 3348 FLAG_SET_DEFAULT(UseBiasedLocking, false); |
1131 | 3349 LP64_ONLY(FLAG_SET_DEFAULT(UseCompressedOops, false)); |
3350 #endif // CC_INTERP | |
3351 | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3352 #ifdef COMPILER2 |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3353 if (!UseBiasedLocking || EmitSync != 0) { |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3354 UseOptoBiasInlining = false; |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3355 } |
4777 | 3356 if (!EliminateLocks) { |
3357 EliminateNestedLocks = false; | |
3358 } | |
420
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3359 #endif |
a1980da045cc
6462850: generate biased locking code in C2 ideal graph
kvn
parents:
416
diff
changeset
|
3360 |
1155
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3361 if (PrintAssembly && FLAG_IS_DEFAULT(DebugNonSafepoints)) { |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3362 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
|
3363 DebugNonSafepoints = true; |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3364 } |
4e6abf09f540
6912062: disassembler plugin needs to produce symbolic information in product mode
jrose
parents:
1150
diff
changeset
|
3365 |
1188
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3366 #ifndef PRODUCT |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3367 if (CompileTheWorld) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3368 // 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
|
3369 if (FLAG_IS_DEFAULT(NmethodSweepFraction)) { |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3370 NmethodSweepFraction = 1; |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3371 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3372 } |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3373 #endif |
99af867dfa05
6919886: Sweep CodeCache more aggressively to reduce its usage for CompileTheWorld
kvn
parents:
1161
diff
changeset
|
3374 |
0 | 3375 if (PrintCommandLineFlags) { |
4773 | 3376 CommandLineFlags::printSetFlags(tty); |
0 | 3377 } |
3378 | |
1681
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3379 // Apply CPU specific policy for the BiasedLocking |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3380 if (UseBiasedLocking) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3381 if (!VM_Version::use_biased_locking() && |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3382 !(FLAG_IS_CMDLINE(UseBiasedLocking))) { |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3383 UseBiasedLocking = false; |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3384 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3385 } |
126ea7725993
6953477: Increase portability and flexibility of building Hotspot
bobv
parents:
1679
diff
changeset
|
3386 |
2302
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3387 // set PauseAtExit if the gamma launcher was used and a debugger is attached |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3388 // but only if not already set on the commandline |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3389 if (Arguments::created_by_gamma_launcher() && os::is_debugger_attached()) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3390 bool set = false; |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3391 CommandLineFlags::wasSetOnCmdline("PauseAtExit", &set); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3392 if (!set) { |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3393 FLAG_SET_DEFAULT(PauseAtExit, true); |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3394 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3395 } |
da091bb67459
7022037: Pause when exiting if debugger is attached on windows
sla
parents:
2243
diff
changeset
|
3396 |
0 | 3397 return JNI_OK; |
3398 } | |
3399 | |
3400 int Arguments::PropertyList_count(SystemProperty* pl) { | |
3401 int count = 0; | |
3402 while(pl != NULL) { | |
3403 count++; | |
3404 pl = pl->next(); | |
3405 } | |
3406 return count; | |
3407 } | |
3408 | |
3409 const char* Arguments::PropertyList_get_value(SystemProperty *pl, const char* key) { | |
3410 assert(key != NULL, "just checking"); | |
3411 SystemProperty* prop; | |
3412 for (prop = pl; prop != NULL; prop = prop->next()) { | |
3413 if (strcmp(key, prop->key()) == 0) return prop->value(); | |
3414 } | |
3415 return NULL; | |
3416 } | |
3417 | |
3418 const char* Arguments::PropertyList_get_key_at(SystemProperty *pl, int index) { | |
3419 int count = 0; | |
3420 const char* ret_val = NULL; | |
3421 | |
3422 while(pl != NULL) { | |
3423 if(count >= index) { | |
3424 ret_val = pl->key(); | |
3425 break; | |
3426 } | |
3427 count++; | |
3428 pl = pl->next(); | |
3429 } | |
3430 | |
3431 return ret_val; | |
3432 } | |
3433 | |
3434 char* Arguments::PropertyList_get_value_at(SystemProperty* pl, int index) { | |
3435 int count = 0; | |
3436 char* ret_val = NULL; | |
3437 | |
3438 while(pl != NULL) { | |
3439 if(count >= index) { | |
3440 ret_val = pl->value(); | |
3441 break; | |
3442 } | |
3443 count++; | |
3444 pl = pl->next(); | |
3445 } | |
3446 | |
3447 return ret_val; | |
3448 } | |
3449 | |
3450 void Arguments::PropertyList_add(SystemProperty** plist, SystemProperty *new_p) { | |
3451 SystemProperty* p = *plist; | |
3452 if (p == NULL) { | |
3453 *plist = new_p; | |
3454 } else { | |
3455 while (p->next() != NULL) { | |
3456 p = p->next(); | |
3457 } | |
3458 p->set_next(new_p); | |
3459 } | |
3460 } | |
3461 | |
3462 void Arguments::PropertyList_add(SystemProperty** plist, const char* k, char* v) { | |
3463 if (plist == NULL) | |
3464 return; | |
3465 | |
3466 SystemProperty* new_p = new SystemProperty(k, v, true); | |
3467 PropertyList_add(plist, new_p); | |
3468 } | |
3469 | |
3470 // This add maintains unique property key in the list. | |
691 | 3471 void Arguments::PropertyList_unique_add(SystemProperty** plist, const char* k, char* v, jboolean append) { |
0 | 3472 if (plist == NULL) |
3473 return; | |
3474 | |
3475 // If property key exist then update with new value. | |
3476 SystemProperty* prop; | |
3477 for (prop = *plist; prop != NULL; prop = prop->next()) { | |
3478 if (strcmp(k, prop->key()) == 0) { | |
691 | 3479 if (append) { |
3480 prop->append_value(v); | |
3481 } else { | |
3482 prop->set_value(v); | |
3483 } | |
0 | 3484 return; |
3485 } | |
3486 } | |
3487 | |
3488 PropertyList_add(plist, k, v); | |
3489 } | |
3490 | |
3491 #ifdef KERNEL | |
3492 char *Arguments::get_kernel_properties() { | |
3493 // Find properties starting with kernel and append them to string | |
3494 // We need to find out how long they are first because the URL's that they | |
3495 // might point to could get long. | |
3496 int length = 0; | |
3497 SystemProperty* prop; | |
3498 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
3499 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
3500 length += (strlen(prop->key()) + strlen(prop->value()) + 5); // "-D =" | |
3501 } | |
3502 } | |
3503 // Add one for null terminator. | |
6197 | 3504 char *props = AllocateHeap(length + 1, mtInternal); |
0 | 3505 if (length != 0) { |
3506 int pos = 0; | |
3507 for (prop = _system_properties; prop != NULL; prop = prop->next()) { | |
3508 if (strncmp(prop->key(), "kernel.", 7 ) == 0) { | |
3509 jio_snprintf(&props[pos], length-pos, | |
3510 "-D%s=%s ", prop->key(), prop->value()); | |
3511 pos = strlen(props); | |
3512 } | |
3513 } | |
3514 } | |
3515 // null terminate props in case of null | |
3516 props[length] = '\0'; | |
3517 return props; | |
3518 } | |
3519 #endif // KERNEL | |
3520 | |
3521 // Copies src into buf, replacing "%%" with "%" and "%p" with pid | |
3522 // Returns true if all of the source pointed by src has been copied over to | |
3523 // the destination buffer pointed by buf. Otherwise, returns false. | |
3524 // Notes: | |
3525 // 1. If the length (buflen) of the destination buffer excluding the | |
3526 // NULL terminator character is not long enough for holding the expanded | |
3527 // pid characters, it also returns false instead of returning the partially | |
3528 // expanded one. | |
3529 // 2. The passed in "buflen" should be large enough to hold the null terminator. | |
3530 bool Arguments::copy_expand_pid(const char* src, size_t srclen, | |
3531 char* buf, size_t buflen) { | |
3532 const char* p = src; | |
3533 char* b = buf; | |
3534 const char* src_end = &src[srclen]; | |
3535 char* buf_end = &buf[buflen - 1]; | |
3536 | |
3537 while (p < src_end && b < buf_end) { | |
3538 if (*p == '%') { | |
3539 switch (*(++p)) { | |
3540 case '%': // "%%" ==> "%" | |
3541 *b++ = *p++; | |
3542 break; | |
3543 case 'p': { // "%p" ==> current process id | |
3544 // buf_end points to the character before the last character so | |
3545 // that we could write '\0' to the end of the buffer. | |
3546 size_t buf_sz = buf_end - b + 1; | |
3547 int ret = jio_snprintf(b, buf_sz, "%d", os::current_process_id()); | |
3548 | |
3549 // if jio_snprintf fails or the buffer is not long enough to hold | |
3550 // the expanded pid, returns false. | |
3551 if (ret < 0 || ret >= (int)buf_sz) { | |
3552 return false; | |
3553 } else { | |
3554 b += ret; | |
3555 assert(*b == '\0', "fail in copy_expand_pid"); | |
3556 if (p == src_end && b == buf_end + 1) { | |
3557 // reach the end of the buffer. | |
3558 return true; | |
3559 } | |
3560 } | |
3561 p++; | |
3562 break; | |
3563 } | |
3564 default : | |
3565 *b++ = '%'; | |
3566 } | |
3567 } else { | |
3568 *b++ = *p++; | |
3569 } | |
3570 } | |
3571 *b = '\0'; | |
3572 return (p == src_end); // return false if not all of the source was copied | |
3573 } |