290 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) },
291 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) },
292 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) },
293 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) },
294 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) },
295 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) },
296 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) },
297 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) },
298 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) },
299 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) },
300 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) },
301 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) },
302 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) },
303 { "UseOldInlining", JDK_Version::jdk(9), JDK_Version::jdk(10) },
304 { "SafepointPollOffset", JDK_Version::jdk(9), JDK_Version::jdk(10) },
305 #ifdef PRODUCT
306 { "DesiredMethodLimit",
307 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) },
308 #endif // PRODUCT
309 { "UseVMInterruptibleIO", JDK_Version::jdk(8), JDK_Version::jdk(9) },
310 { NULL, JDK_Version(0), JDK_Version(0) }
311 };
312
313 // Returns true if the flag is obsolete and fits into the range specified
314 // for being ignored. In the case that the flag is ignored, the 'version'
315 // value is filled in with the version number when the flag became
316 // obsolete so that that value can be displayed to the user.
317 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) {
318 int i = 0;
319 assert(version != NULL, "Must provide a version buffer");
320 while (obsolete_jvm_flags[i].name != NULL) {
321 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i];
322 // <flag>=xxx form
323 // [-|+]<flag> form
324 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) ||
325 ((s[0] == '+' || s[0] == '-') &&
326 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) {
327 if (JDK_Version::current().compare(flag_status.accept_until) == -1) {
328 *version = flag_status.obsoleted_in;
329 return true;
2061
2062 // Check stack pages settings
2063 bool Arguments::check_stack_pages()
2064 {
2065 bool status = true;
2066 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages");
2067 status = status && verify_min_value(StackRedPages, 1, "StackRedPages");
2068 // greater stack shadow pages can't generate instruction to bang stack
2069 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages");
2070 return status;
2071 }
2072
2073 // Check the consistency of vm_init_args
2074 bool Arguments::check_vm_args_consistency() {
2075 // Method for adding checks for flag consistency.
2076 // The intent is to warn the user of all possible conflicts,
2077 // before returning an error.
2078 // Note: Needs platform-dependent factoring.
2079 bool status = true;
2080
2081 // Allow both -XX:-UseStackBanging and -XX:-UseBoundThreads in non-product
2082 // builds so the cost of stack banging can be measured.
2083 #if (defined(PRODUCT) && defined(SOLARIS))
2084 if (!UseBoundThreads && !UseStackBanging) {
2085 jio_fprintf(defaultStream::error_stream(),
2086 "-UseStackBanging conflicts with -UseBoundThreads\n");
2087
2088 status = false;
2089 }
2090 #endif
2091
2092 if (TLABRefillWasteFraction == 0) {
2093 jio_fprintf(defaultStream::error_stream(),
2094 "TLABRefillWasteFraction should be a denominator, "
2095 "not " SIZE_FORMAT "\n",
2096 TLABRefillWasteFraction);
2097 status = false;
2098 }
2099
2100 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100,
2101 "AdaptiveSizePolicyWeight");
2102 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance");
2103
2104 // Divide by bucket size to prevent a large size from causing rollover when
2105 // calculating amount of memory needed to be allocated for the String table.
2106 status = status && verify_interval(StringTableSize, minimumStringTableSize,
2107 (max_uintx / StringTable::bucket_size()), "StringTable size");
2108
2109 status = status && verify_interval(SymbolTableSize, minimumSymbolTableSize,
2110 (max_uintx / SymbolTable::bucket_size()), "SymbolTable size");
2111
|
290 { "PermMarkSweepDeadRatio", JDK_Version::jdk(8), JDK_Version::jdk(9) },
291 { "PermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) },
292 { "MaxPermSize", JDK_Version::jdk(8), JDK_Version::jdk(9) },
293 { "MinPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) },
294 { "MaxPermHeapExpansion", JDK_Version::jdk(8), JDK_Version::jdk(9) },
295 { "CMSRevisitStackSize", JDK_Version::jdk(8), JDK_Version::jdk(9) },
296 { "PrintRevisitStats", JDK_Version::jdk(8), JDK_Version::jdk(9) },
297 { "UseVectoredExceptions", JDK_Version::jdk(8), JDK_Version::jdk(9) },
298 { "UseSplitVerifier", JDK_Version::jdk(8), JDK_Version::jdk(9) },
299 { "UseISM", JDK_Version::jdk(8), JDK_Version::jdk(9) },
300 { "UsePermISM", JDK_Version::jdk(8), JDK_Version::jdk(9) },
301 { "UseMPSS", JDK_Version::jdk(8), JDK_Version::jdk(9) },
302 { "UseStringCache", JDK_Version::jdk(8), JDK_Version::jdk(9) },
303 { "UseOldInlining", JDK_Version::jdk(9), JDK_Version::jdk(10) },
304 { "SafepointPollOffset", JDK_Version::jdk(9), JDK_Version::jdk(10) },
305 #ifdef PRODUCT
306 { "DesiredMethodLimit",
307 JDK_Version::jdk_update(7, 2), JDK_Version::jdk(8) },
308 #endif // PRODUCT
309 { "UseVMInterruptibleIO", JDK_Version::jdk(8), JDK_Version::jdk(9) },
310 { "UseBoundThreads", JDK_Version::jdk(9), JDK_Version::jdk(10) },
311 { "DefaultThreadPriority", JDK_Version::jdk(9), JDK_Version::jdk(10) },
312 { "NoYieldsInMicrolock", JDK_Version::jdk(9), JDK_Version::jdk(10) },
313 { NULL, JDK_Version(0), JDK_Version(0) }
314 };
315
316 // Returns true if the flag is obsolete and fits into the range specified
317 // for being ignored. In the case that the flag is ignored, the 'version'
318 // value is filled in with the version number when the flag became
319 // obsolete so that that value can be displayed to the user.
320 bool Arguments::is_newly_obsolete(const char *s, JDK_Version* version) {
321 int i = 0;
322 assert(version != NULL, "Must provide a version buffer");
323 while (obsolete_jvm_flags[i].name != NULL) {
324 const ObsoleteFlag& flag_status = obsolete_jvm_flags[i];
325 // <flag>=xxx form
326 // [-|+]<flag> form
327 if ((strncmp(flag_status.name, s, strlen(flag_status.name)) == 0) ||
328 ((s[0] == '+' || s[0] == '-') &&
329 (strncmp(flag_status.name, &s[1], strlen(flag_status.name)) == 0))) {
330 if (JDK_Version::current().compare(flag_status.accept_until) == -1) {
331 *version = flag_status.obsoleted_in;
332 return true;
2064
2065 // Check stack pages settings
2066 bool Arguments::check_stack_pages()
2067 {
2068 bool status = true;
2069 status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages");
2070 status = status && verify_min_value(StackRedPages, 1, "StackRedPages");
2071 // greater stack shadow pages can't generate instruction to bang stack
2072 status = status && verify_interval(StackShadowPages, 1, 50, "StackShadowPages");
2073 return status;
2074 }
2075
2076 // Check the consistency of vm_init_args
2077 bool Arguments::check_vm_args_consistency() {
2078 // Method for adding checks for flag consistency.
2079 // The intent is to warn the user of all possible conflicts,
2080 // before returning an error.
2081 // Note: Needs platform-dependent factoring.
2082 bool status = true;
2083
2084 if (TLABRefillWasteFraction == 0) {
2085 jio_fprintf(defaultStream::error_stream(),
2086 "TLABRefillWasteFraction should be a denominator, "
2087 "not " SIZE_FORMAT "\n",
2088 TLABRefillWasteFraction);
2089 status = false;
2090 }
2091
2092 status = status && verify_interval(AdaptiveSizePolicyWeight, 0, 100,
2093 "AdaptiveSizePolicyWeight");
2094 status = status && verify_percentage(ThresholdTolerance, "ThresholdTolerance");
2095
2096 // Divide by bucket size to prevent a large size from causing rollover when
2097 // calculating amount of memory needed to be allocated for the String table.
2098 status = status && verify_interval(StringTableSize, minimumStringTableSize,
2099 (max_uintx / StringTable::bucket_size()), "StringTable size");
2100
2101 status = status && verify_interval(SymbolTableSize, minimumSymbolTableSize,
2102 (max_uintx / SymbolTable::bucket_size()), "SymbolTable size");
2103
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