657 const char* Arguments::real_flag_name(const char *flag_name) {
658 for (size_t i = 0; aliased_jvm_flags[i].alias_name != NULL; i++) {
659 const AliasedFlag& flag_status = aliased_jvm_flags[i];
660 if (strcmp(flag_status.alias_name, flag_name) == 0) {
661 return flag_status.real_name;
662 }
663 }
664 return flag_name;
665 }
666
667 #ifdef ASSERT
668 static bool lookup_special_flag(const char *flag_name, size_t skip_index) {
669 for (size_t i = 0; special_jvm_flags[i].name != NULL; i++) {
670 if ((i != skip_index) && (strcmp(special_jvm_flags[i].name, flag_name) == 0)) {
671 return true;
672 }
673 }
674 return false;
675 }
676
677 static bool verify_special_jvm_flags() {
678 bool success = true;
679 for (size_t i = 0; special_jvm_flags[i].name != NULL; i++) {
680 const SpecialFlag& flag = special_jvm_flags[i];
681 if (lookup_special_flag(flag.name, i)) {
682 warning("Duplicate special flag declaration \"%s\"", flag.name);
683 success = false;
684 }
685 if (flag.deprecated_in.is_undefined() &&
686 flag.obsolete_in.is_undefined()) {
687 warning("Special flag entry \"%s\" must declare version deprecated and/or obsoleted in.", flag.name);
688 success = false;
689 }
690
691 if (!flag.deprecated_in.is_undefined()) {
692 if (!version_less_than(flag.deprecated_in, flag.obsolete_in)) {
693 warning("Special flag entry \"%s\" must be deprecated before obsoleted.", flag.name);
694 success = false;
695 }
696
697 if (!version_less_than(flag.deprecated_in, flag.expired_in)) {
698 warning("Special flag entry \"%s\" must be deprecated before expired.", flag.name);
699 success = false;
700 }
701 }
702
703 if (!flag.obsolete_in.is_undefined()) {
704 if (!version_less_than(flag.obsolete_in, flag.expired_in)) {
705 warning("Special flag entry \"%s\" must be obsoleted before expired.", flag.name);
706 success = false;
707 }
708
709 // if flag has become obsolete it should not have a "globals" flag defined anymore.
710 if (!version_less_than(JDK_Version::current(), flag.obsolete_in)) {
711 if (Flag::find_flag(flag.name) != NULL) {
712 warning("Global variable for obsolete special flag entry \"%s\" should be removed", flag.name);
713 success = false;
714 }
715 }
716 }
717
718 if (!flag.expired_in.is_undefined()) {
719 // if flag has become expired it should not have a "globals" flag defined anymore.
720 if (!version_less_than(JDK_Version::current(), flag.expired_in)) {
721 if (Flag::find_flag(flag.name) != NULL) {
722 warning("Global variable for expired flag entry \"%s\" should be removed", flag.name);
723 success = false;
724 }
725 }
726 }
727
728 }
729 return success;
730 }
731 #endif
732
733 // Parses a size specification string.
734 bool Arguments::atojulong(const char *s, julong* result) {
735 julong n = 0;
736
737 // First char must be a digit. Don't allow negative numbers or leading spaces.
738 if (!isdigit(*s)) {
739 return false;
740 }
741
742 bool is_hex = (s[0] == '0' && (s[1] == 'x' || s[1] == 'X'));
743 char* remainder;
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657 const char* Arguments::real_flag_name(const char *flag_name) {
658 for (size_t i = 0; aliased_jvm_flags[i].alias_name != NULL; i++) {
659 const AliasedFlag& flag_status = aliased_jvm_flags[i];
660 if (strcmp(flag_status.alias_name, flag_name) == 0) {
661 return flag_status.real_name;
662 }
663 }
664 return flag_name;
665 }
666
667 #ifdef ASSERT
668 static bool lookup_special_flag(const char *flag_name, size_t skip_index) {
669 for (size_t i = 0; special_jvm_flags[i].name != NULL; i++) {
670 if ((i != skip_index) && (strcmp(special_jvm_flags[i].name, flag_name) == 0)) {
671 return true;
672 }
673 }
674 return false;
675 }
676
677 // Verifies the correctness of the entries in the special_jvm_flags table.
678 // If there is a semantic error (i.e. a bug in the table) such as the obsoletion
679 // version being earlier than the deprecation version, then a warning is issued
680 // and verification fails - by returning false. If it is detected that the table
681 // is out of date, with respect to the current version, then a warning is issued
682 // but verification does not fail. This allows the VM to operate when the version
683 // is first updated, without needing to update all the impacted flags at the
684 // same time.
685 static bool verify_special_jvm_flags() {
686 bool success = true;
687 for (size_t i = 0; special_jvm_flags[i].name != NULL; i++) {
688 const SpecialFlag& flag = special_jvm_flags[i];
689 if (lookup_special_flag(flag.name, i)) {
690 warning("Duplicate special flag declaration \"%s\"", flag.name);
691 success = false;
692 }
693 if (flag.deprecated_in.is_undefined() &&
694 flag.obsolete_in.is_undefined()) {
695 warning("Special flag entry \"%s\" must declare version deprecated and/or obsoleted in.", flag.name);
696 success = false;
697 }
698
699 if (!flag.deprecated_in.is_undefined()) {
700 if (!version_less_than(flag.deprecated_in, flag.obsolete_in)) {
701 warning("Special flag entry \"%s\" must be deprecated before obsoleted.", flag.name);
702 success = false;
703 }
704
705 if (!version_less_than(flag.deprecated_in, flag.expired_in)) {
706 warning("Special flag entry \"%s\" must be deprecated before expired.", flag.name);
707 success = false;
708 }
709 }
710
711 if (!flag.obsolete_in.is_undefined()) {
712 if (!version_less_than(flag.obsolete_in, flag.expired_in)) {
713 warning("Special flag entry \"%s\" must be obsoleted before expired.", flag.name);
714 success = false;
715 }
716
717 // if flag has become obsolete it should not have a "globals" flag defined anymore.
718 if (!version_less_than(JDK_Version::current(), flag.obsolete_in)) {
719 if (Flag::find_flag(flag.name) != NULL) {
720 warning("Global variable for obsolete special flag entry \"%s\" should be removed", flag.name);
721 }
722 }
723 }
724
725 if (!flag.expired_in.is_undefined()) {
726 // if flag has become expired it should not have a "globals" flag defined anymore.
727 if (!version_less_than(JDK_Version::current(), flag.expired_in)) {
728 if (Flag::find_flag(flag.name) != NULL) {
729 warning("Global variable for expired flag entry \"%s\" should be removed", flag.name);
730 }
731 }
732 }
733
734 }
735 return success;
736 }
737 #endif
738
739 // Parses a size specification string.
740 bool Arguments::atojulong(const char *s, julong* result) {
741 julong n = 0;
742
743 // First char must be a digit. Don't allow negative numbers or leading spaces.
744 if (!isdigit(*s)) {
745 return false;
746 }
747
748 bool is_hex = (s[0] == '0' && (s[1] == 'x' || s[1] == 'X'));
749 char* remainder;
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