1.1 --- a/src/share/vm/runtime/arguments.cpp Fri Aug 20 14:24:47 2010 -0700
1.2 +++ b/src/share/vm/runtime/arguments.cpp Mon Aug 23 08:44:03 2010 -0700
1.3 @@ -1561,6 +1561,18 @@
1.4 return false;
1.5 }
1.6
1.7 +bool Arguments::verify_min_value(intx val, intx min, const char* name) {
1.8 + // Returns true if given value is greater than specified min threshold
1.9 + // false, otherwise.
1.10 + if (val >= min ) {
1.11 + return true;
1.12 + }
1.13 + jio_fprintf(defaultStream::error_stream(),
1.14 + "%s of " INTX_FORMAT " is invalid; must be greater than " INTX_FORMAT "\n",
1.15 + name, val, min);
1.16 + return false;
1.17 +}
1.18 +
1.19 bool Arguments::verify_percentage(uintx value, const char* name) {
1.20 if (value <= 100) {
1.21 return true;
1.22 @@ -1613,6 +1625,16 @@
1.23 return status;
1.24 }
1.25
1.26 +// Check stack pages settings
1.27 +bool Arguments::check_stack_pages()
1.28 +{
1.29 + bool status = true;
1.30 + status = status && verify_min_value(StackYellowPages, 1, "StackYellowPages");
1.31 + status = status && verify_min_value(StackRedPages, 1, "StackRedPages");
1.32 + status = status && verify_min_value(StackShadowPages, 1, "StackShadowPages");
1.33 + return status;
1.34 +}
1.35 +
1.36 // Check the consistency of vm_init_args
1.37 bool Arguments::check_vm_args_consistency() {
1.38 // Method for adding checks for flag consistency.
1.39 @@ -1725,6 +1747,7 @@
1.40 }
1.41
1.42 status = status && check_gc_consistency();
1.43 + status = status && check_stack_pages();
1.44
1.45 if (_has_alloc_profile) {
1.46 if (UseParallelGC || UseParallelOldGC) {
